CN201495869U

CN201495869U - Lock for tool box or cabinet

Info

Publication number: CN201495869U
Application number: CN2009202325572U
Authority: CN
Inventors: 王卫东
Original assignee: CHANGSHU ZHONGCHENG TOOL BOX Co Ltd
Current assignee: CHANGSHU ZHONGCHENG TOOL BOX Co Ltd
Priority date: 2009-09-16
Filing date: 2009-09-16
Publication date: 2010-06-02
Anticipated expiration: 2019-09-16

Abstract

A lock for a tool box or cabinet belongs to the technical field of hardware fabrication and comprises a lock casing, a lock plug body, a spring, a push plate, a lock hook plate and a torsional spring. The middle portion of the lock casing is provided with a lock plug hole, the front end portion and the rear end portion of the lock casing are respectively provided with a face plate and a lock hook plate support, a bolt groove is arranged on the hole wall of the lock plug hole, and a supporting seat and a lock plug positioning flange are arranged at the bottom portion of the lock plug hole. The lock plug body is arranged inside the lock plug hole, a lock plug and a bolt are arranged in the middle of the front end portion of the lock plug body, a spring seat is arranged at the rear end portion of the lock plug body, a sliding groove is arranged on the spring seat, and a square head is arranged at the tail portion of the spring seat. The spring is sleeved on the spring seat of the lock plug body and in contact engagement with the supporting seat. The push plate is fixed on the square head, the lock hook plate is in pivoted connection with the lock hook plate support and provided with pushing feet and lock hook feet, the torsional spring is arranged on a pin shaft, and a first torsional spring foot and a second torsional spring foot of the torsional spring are respectively fixed on the lock hook plate and the lock hook plate support. The lock for a tool box or cabinet has the advantages of having good disguise property, excellent tamper-proof and anti-theft performances, self-lock function and long service life; being convenient, labor-saving in operation and simple in structure; and having good sealing effect.

Description

Lockset for tool case

Technical field

The utility model relates to a kind of lockset for tool case, is used for the case lid of implementation tool bin and sealed the fixing between the casing, belongs to five metals manufacturing technology field.

Background technology

At present, the lockset for tool case that is used to lock case lid and casing mainly contains two kinds of form of structure: a kind of is padlock, and the defective that this lockset exists is: at first, exposedly suffer wind and weather outside for a long time, easily get rusty, application life is short; Secondly, prized easily, theftproof performance is poor; Again, obturation effect is poor; Another kind is a turning-bolt lock, and it is to revolve by catch to turn 90 degrees or catch is done stretching motion and realized the unlatching of locking or close that the deficiency that this lockset exists is: fastness, poor reliability; Safety is not high, the pick-proof and anti-theft poor-performing, and do not have auto-lock function; Obturation effect is not good yet simultaneously.

Chinese invention patent publication number CN1573002A discloses the tool box rotating lock technical scheme by the application of U.S. Reaton Corp., it is that certificate is in U.S. Patent number US6502871 (issue on January 7th, 2003), US6454321 (issue on September 24th, 2002), the existing improvement that can't be applied to the drawback on the strict tool box of instructions for use and propose of US5884948 (issue on March 23rd, 1999), core is the impacting pin by horizontal spreading on the lid in tool box be meshed with locking devicen (cooperation), the key that the lock core member is rotated is able to insert the handle from the front portion of bolt lock mechanism, and the tool box is fastened use locking, to prevent that locking bar from unclamping impacting pin, ensure the locking effect.The shortcoming that this technical scheme exists is: owing to only depend on the rotating lock structure as a whole between case lid and the casing, the load of rotating lock often is easy to cause damage greatly; The binding site of whole lockset and casing, case lid (face) is too narrow and small, and stress is concentrated, the anxiety that exists lockset and casing or case lid to be separated and to come off; Overall structure is comparatively complicated; Obturation effect is poor; No auto-lock function.

Chinese patent notice of authorization CN2258219Y, CN2758032Y, CN2705278Y disclose tool box, the tool box fastener structures that name is called lockset for tool box, has buckle structure respectively, though these patented technology schemes are directed to prior art achievement is arranged respectively, for example CN2258219Y utilizes opening/closing so that the push and block body can move freely or locatees of number wheel, with the control panel button could switching effect, control locking, unblank thereby reach, have certain antitheft effect in number wheel check mark mode; And for example the mentality of designing of CN2758032Y and CN2705278Y is roughly similar, and the contacting piece structure has been carried out reasonable improvement.But above-mentioned patent is still all deposited the applicant in the shortcoming mentioned to CN1573002A.

Summary of the invention

The purpose of this utility model be to provide a kind of and can guarantee to combine between casing and the case lid firm, pick-proof and anti-theft excellent performance, have auto-lock function, simple in structure, unblank/the convenient and good lockset for tool case of obturation effect of locking.

The purpose of this utility model reaches like this, a kind of lockset for tool case, comprise that one is used to be configured to the lock housing that case lid gets on, it is that the end, rear end that the front end end of lock core hole, lock housing is formed with panel, lock housing is formed with the lock crook plate support that the centre of this lock housing offers through hole along its length, offer lock tongue slot on the hole wall of described lock core hole, the bottom of lock core hole length direction is along the radially protrusion of lock core hole and be formed with supporting base and lock core locating flange; One lock core body, place the lock core hole of described lock housing, be provided with lock core and dead bolt in the middle of the leading section of this lock core body length direction, be formed with the keyhole that is used for for the key inserting on the described lock core, described dead bolt and lock core are in transmission connection, and the rotation by lock core can realize the stretching motion of dead bolt on lock core body, narrow the contracting of rearward end of this lock core body length direction and be formed with spring base, on the length direction of spring base, offer the chute that is used for for described lock core locating flange scarf, also be formed with square toes at the afterbody of spring base; One is used to make the automatically reset spring of lock core body, is set on the spring base of lock core body, and touches with supporting base and to join; One push pedal has square hole, and push pedal is installed on the described square toes by square hole and is screwed; One lock crook plate is articulated on the lock crook plate support by bearing pin, is formed with pushing away pin and being used for the latch hook pin sealed with casing of being used for cooperating with push pedal on lock crook plate; One is used to make the automatically reset torsion spring of lock crook plate, is installed on the bearing pin, has the first torsion spring pin and the second torsion spring pin, and described first torsion spring pin and lock crook plate are fixed, and described second torsion spring pin and lock crook plate support are fixed.

In a specific embodiment of the present utility model, described lock crook plate support has a pair of, offers the pin shaft hole that is used for for the two ends pivot joint of described bearing pin on a pair of lock crook plate support respectively.

In another specific embodiment of the present utility model, described lock crook plate support has a pair of, is formed with first confined planes and second confined planes on a pair of lock crook plate support respectively.

In another specific embodiment of the present utility model, described lock crook plate the both sides, upper end of length direction be formed with respectively be used for a pair of lock crook plate support on first confined planes or the defining flange that cooperates of second confined planes.

In another specific embodiment of the present utility model, the inboard of described panel is provided with sealing ring, and the sealing snare is located on the lock housing.

In of the present utility model and then specific embodiment, on the described lock housing and be close to the panel place and offer plugboard trough, in described plugboard trough, be inserted with one and be used for to realize the reed plate of fixed connection between lock housing and the case lid.

More of the present utility model and in specific embodiment, the centre of described reed plate offers the jack that is used for the plugboard trough inserting.

In again of the present utility model and then specific embodiment, also be formed with arcwall face on the described reed plate.

Of the present utility model again more and in specific embodiment, be formed with on the described lock housing and be used for the step surface that cooperates with described arcwall face.

The utility model is because after adopting said structure, one of advantage that has, owing to lock the dead bolt of joining mutually and all be positioned at bin with lock crook plate that casing locks together with lock housing, so have good disguise, the pick-proof and anti-theft excellent performance, and after adopting the double locking mode, can further improve the strong degree that combines between casing and the case lid; Advantage two, because lock crook plate under the effect of torsion spring, in case eliminate can self-return and case lid and casing is sealed again for external force, so has auto-lock function; Advantage three, be equipped with and lock crook plate and casing sealed by the lock of dead bolt and lock housing, can make the bond sites between casing and the case lid obtain enlarging, help prolonging the application life of lockset; Advantage four, unblank/lock operation is laborsaving, convenient, simple in structure; Advantage five, the obturation effect between casing and the case lid is good.

Description of drawings

Fig. 1 is an example structure figure of the present utility model.

Fig. 2 is installed on a tool box application examples schematic diagram cashier's office in a shop for the utility model.

Among the figure: 1. lock core body, 11. lock cores, 111. keyholes, 12. dead bolts, 13. spring bases, 131. chutes, 132. square toes; 2. lock housing, 21. lock core holes, 22. panels, 23. lock tongue slots, 24. supporting bases, 25. lock core locating flanges, 26. lock crook plate supports, 261. pin shaft holes, 262. first confined planes, 263. second confined planes, 27. plugboard troughs, 28. step surfaces; 3. lock crook plate, 31. latch hook pin, 32. push away pin, 33. defining flanges, 34. bearing pins; 4. torsion spring, 41. first torsion spring pin, 42. second torsion spring pin; 5. screw; 6. push pedal, 61. square holes; 7. sealing ring, 8. reed plate, 81. jacks, 82. arcwall faces, 83. another sides; 9. spring; 10. key; 20. case lid; 30. casing, 301. hook locks.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

See also accompanying drawing, a kind of lockset for tool case comprises lock housing 2, lock core body 1, spring 9, push pedal 6, lock crook plate 3, torsion spring 4, sealing ring 7 and reed plate 8.The centre of described lock housing 2 offers through hole along its length, this through hole is the lock core hole 21 that is used to install lock core body 1, described lock housing 2 is formed with in the front end end of length direction and expands that to establish face be panel 22, the connection that this panel 22 is convenient between lock housing and the case lid is when mounted fixed, described lock housing 2 is formed with lock crook plate support 26 in the end, rear end of length direction, described lock crook plate support 26 has a pair of, on a pair of lock crook plate support 26, be formed with first confined planes 262 respectively, second confined planes 263 and pin shaft hole 261, offer lock tongue slot 23 on the hole wall of described lock core hole 21, described lock core hole 21 in the bottom of length direction along the radially protrusion of lock core hole and be formed with supporting base 24 and lock core locating flange 25, the quantity of described lock core locating flange 25 can be more than 1 or 1, on described lock housing 2 and be close to panel 22 places and also be formed with plugboard trough 27 and step surface 28.Described lock core body 1 is installed in the lock core hole 21 of lock core body 1, in the middle of the leading section of lock core body 1 length direction, be provided with lock core 11 and dead bolt 12, be formed with the keyhole 111 that is used for for the key inserting on the described lock core 11, described dead bolt 12 is in transmission connection with lock core 11, and can realize dead bolt 12 stretching out or the indentation campaign on lock core body 1 by the rotation of lock core 11.Here need to prove: owing to all have the bolt lock mechanism that a cover is made of lock core and dead bolt on the normally used common lockset (as door lock, Safe lock); its objective is by the rotation drive dead bolt of lock core and make stretching motion; to realize locking/unlocking to lock body; so belong to known technology; and lock core and dead bolt connected mode between the two is not subjected to any restriction, does not belong to the claimed scope of the utility model yet.Narrow the contracting of rearward end of lock core body 1 length direction and be formed with spring base 13, on the length direction of spring base 13, offer chute 131, the quantity of chute 131 should be corresponding with the quantity and the position relation of lock core locating flange 25 with the position relation, scarf by chute 131 and lock core locating flange 25 can effectively prevent the rotation of lock housing body 1 in lock core hole 21, simultaneously lock core body 1 seesawing in lock housing 2 is play the guiding role.The afterbody of described spring base 13 is narrow contracting and be formed with square toes 132 also, simultaneously, installs for convenience, should offer in advance in the centre of described square toes 132 to be used for the screw hole that is screwed into for described screw 5.Described spring 9 is set on the spring base 13 of lock core body 1 and touches and join with supporting base 24 on the lock housing 2, and the effect of spring 9 is to make lock core body 1 can realize resetting.Offer square hole 61 in the described push pedal 6, push pedal 6 is installed on the described square toes 132 by square hole 61 and both fix with push pedal 6 and square toes 132 with screw 5.The shape of described lock crook plate 3 is F shape substantially, on lock crook plate 3, be formed with pushing away pin 32 and being used for latch hook pin 31 and a pair of defining flange 33 sealed of being used for cooperating with casing with push pedal 6, latch hook pin 31 is arranged on the bottom of lock crook plate 3 length directions, push away pin 32 and be arranged on the nearly medium position place of lock crook plate 3 length directions, a pair of defining flange 33 is arranged on the both sides, upper end of lock crook plate 3 length directions, lock crook plate 3 is articulated on a pair of lock crook plate support 26 by bearing pin 34, torsion spring 4 is set on the bearing pin 34, bearing pin 34 is on sheathed behind the torsion spring 4, its two ends are passed the through hole on the lock crook plate 3 respectively and are articulated with pin shaft hole 261 on a pair of lock crook plate support 26, the first torsion spring pin 41 of torsion spring 4 is fixing with lock crook plate 3, and the second torsion spring pin 42 of torsion spring 4 is fixing with lock crook plate support 26.Described sealing ring 7 is arranged on the inboard of panel 22, and is set on the lock housing 2.Described reed plate 8 is actually a jump ring, be used to realize the fixing between lock housing 2 and the case lid, be formed with on this reed plate 8 and be used for and the jack 81 of plugboard trough 27 insertings, the another side 83 that is used for the arcwall face 82 that cooperates with step surface 28 and is used for cooperating with the case lid lid.

See also Fig. 1 and in conjunction with Fig. 2, narration the utility model is installed like this: at first the lock housing 2 of lockset is inserted in the lockhole of offering in advance on the case lid 20 of instrument bin, and make the panel 22 on the lock housing 2 be positioned at case lid 20 cover body outside, and the sealing ring 7 of panel 22 inboards is close on the lid in case lid 20 outsides, then reed plate 8 is inserted the plugboard trough 27 of lock housing 2 from the inboard of case lid 20 lids, and the arcwall face 82 on the reed plate 8 is close on the step surface 28, and the another side 83 on the reed plate 8 is close on the lid of case lid 20 inboards, thereby whole lockset is fixed on the case lid 20 of instrument bin, it is very convenient to install.

Here need to prove: above-mentioned is not unique by reed plate 8 with the method that lockset is fixed on the case lid 20, for example, the utility model can also save reed plate 8, directly by the panel on the lock housing 2 22 by screw on the lid of case lid 20.

Please continue to consult Fig. 1 and in conjunction with Fig. 2, sketch operating principle of the present utility model: outside dead bolt 12 stretched out lock core body 1, when lock tongue slot 23 in the described lock housing 2 matched, this moment, lock core body 1 can not be pushed, and lock is in closed condition.When key 10 inserts in the keyhole 111 and the clockwise direction rotation, making lock core 11 follow key 10 rotates together, the rotation of lock core 11 drives dead bolt 12 simultaneously and shrinks in lock core body 1, dead bolt 12 is broken away from and the cooperating of lock tongue slot 23, push inward movable lock core body 1 then, push pedal 6 on the square toes 132 that are fixed on lock core body 1 rearward end is moved backward, by push pedal 6 with thrust pass to match with push pedal 6 push away pin 32, lock crook plate 6 is backed down, and force lock crook plate 3 to do the clockwise direction rotation around bearing pin 34, make latch hook pin 31 on the lock crook plate 3 break away from casing 30 on the lock of hook lock 301 join, lock is opened, simultaneously by the maximum open angle that cooperates to come control lock hook plate 3 of second confined planes 263 on a pair of defining flange 33 on the lock crook plate 3 and a pair of lock crook plate support 26.When not having thrust to be applied on the lock core body 1, lock core body 1 is being got back under the effect of spring 9 restoring forces on the original position, equally, lock crook plate 3 is done anticlockwise rotation around bearing pin 34 under the effect of torsion spring 4 restoring forces, make on the lock crook plate 3 latch hook pin 31 again with casing 30 on hook lock 301 lock mutually and join, and, make between lock crook plate 3 and the casing 30 to be in locked state all the time by the position that keeps lock crook plate 3 that cooperates of first confined planes 262 on a pair of defining flange 33 on the lock crook plate 3 and a pair of lock crook plate support 26.

To sum up, the utility model can be sealed automatically after external force is cancelled owing to after adopting said structure, thereby have the function of self-locking.

Claims

1. lockset for tool case, it is characterized in that comprising that one is used to be configured to the lock housing (2) that case lid gets on, it is that the end, rear end that the front end end of lock core hole (21), lock housing (2) is formed with panel (22), lock housing (2) is formed with lock crook plate support (26) that the centre of this lock housing (2) offers through hole along its length, offer lock tongue slot (23) on the hole wall of described lock core hole (21), the bottom of lock core hole (21) length direction is along the radially protrusion of lock core hole and be formed with supporting base (24) and lock core locating flange (25); One lock core body (1), place the lock core hole (21) of described lock housing (2), be provided with lock core (11) and dead bolt (12) in the middle of the leading section of this lock core body (1) length direction, be formed with the keyhole (111) that is used for for the key inserting on the described lock core (11), described dead bolt (12) is in transmission connection with lock core (11), and the rotation by lock core (11) can realize the stretching motion of dead bolt (12) on lock core body (1), narrow the contracting of rearward end of this lock core body (1) length direction and be formed with spring base (13), on the length direction of spring base (13), offer the chute (131) that is used for for described lock core locating flange (25) scarf, also be formed with square toes (132) at the afterbody of spring base (13); One is used to make the automatically reset spring of lock core body (1) (9), is set on the spring base (13) of lock core body (1), and touches with supporting base (24) and to join; One push pedal (6) has square hole (61), and push pedal (6) is installed in described square toes (132) by square hole (61) and goes up and fix with screw (5); One lock crook plate (3) is articulated on the lock crook plate support (26) by bearing pin (34), is formed with pushing away pin (32) and being used for the latch hook pin (31) sealed with casing of being used for cooperating with push pedal (6) on lock crook plate (3); One is used to make the automatically reset torsion spring of lock crook plate (3) (4), be installed on the bearing pin (34), have the first torsion spring pin (41) and the second torsion spring pin (42), the described first torsion spring pin (41) is fixing with lock crook plate (3), and the described second torsion spring pin (42) is fixing with lock crook plate support (26).

2. lockset for tool case according to claim 1, it is a pair of to it is characterized in that described lock crook plate support (26) has, and offers the pin shaft hole (261) that is used for for the two ends pivot joint of described bearing pin (34) on a pair of lock crook plate support (26) respectively.

3. lockset for tool case according to claim 1, it is a pair of to it is characterized in that described lock crook plate support (26) has, and is formed with first confined planes (262) and second confined planes (263) on a pair of lock crook plate support (26) respectively.

4. lockset for tool case according to claim 3, it is characterized in that described lock crook plate (3) the both sides, upper end of length direction be formed with respectively be used for a pair of lock crook plate support (26) on first confined planes (262) or the defining flange (33) that cooperates of second confined planes (263).

5. lockset for tool case according to claim 1 is characterized in that the inboard of described panel (22) is provided with sealing ring (7), and sealing circle (7) is set on the lock housing (2).

6. lockset for tool case according to claim 1, it is characterized in that on the described lock housing (2) and be close to panel (22) locating to offer plugboard trough (27), in described plugboard trough (27), be inserted with one and be used for to realize the reed plate (8) of fixed connection between lock housing (2) and the case lid.

7. lockset for tool case according to claim 6 is characterized in that the centre of described reed plate (8) offers the jack (81) that is used for plugboard trough (27) inserting.

8. lockset for tool case according to claim 6 is characterized in that also being formed with on the described reed plate (8) arcwall face (82).

9. lockset for tool case according to claim 8 is characterized in that being formed with on the described lock housing (2) and is used for the step surface (28) that cooperates with described arcwall face (82).