CN209908141U - Lever type anti-prying blade lock - Google Patents

Abstract

The utility model discloses a lever pick-proof blade lock, relate to the lock field, can't realize two-sided unblanking because of the volume ratio and the structure reason to current blade lock and key, lead to can not direct application on ordinary door, and because of the bigger easy quilt of key hole or the technical scheduling problem of unblanking, adopt lock body and shifting block that has separation and reunion self-locking function, the lock body includes the back shroud, the separation and reunion axle, the separation and reunion cover, the bed frame, blade backplate and protecgulum etc., wherein blade pivot hole and blade bolt spout are located the both ends of blade body, the key tooth's socket has been seted up to the centre, the three has formed and has had the effect of enlarging the disclination with the lever structure of blade pivot hole as the fulcrum, can guarantee well that only the. In addition, the teeth of the key can transmit torque and realize the function of clutch through the clutch shaft shifting tooth groove, the structure of the guide rod of the traditional blade lock is reduced, and the key rod does not need a guide blind hole any more, so that the size of the key rod is reduced, and the key is convenient to carry.

Description

Lever type anti-prying blade lock

Technical Field

The utility model relates to a lock field, in particular to lever pick-proof blade lock.

Background

The blade lock is usually applied to occasions such as a safe, a vault and the like because of high safety. The common leaf locks for the treasury are correspondingly provided with flag pole keys, a blind key is arranged in the middle of a key pole, so that the key can be conveniently inserted into the lock for guiding, and corresponding guide rods are also required to be arranged in the leaf locks, so that the key pole and the locks are large and inconvenient to carry or install; in addition, the key hole of the existing blade lock is large, and technical unlocking can be realized if a sensor such as a miniature optical fiber or a probe is adopted to extend into the blade lock for destruction or detection observation; and the leaf lock for the vault is usually opened only in one direction and cannot be directly used on a common door.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model discloses a following technical scheme realizes:

a lever type anti-prying blade lock comprises a lock body and a shifting block, wherein the lock body comprises a rear cover plate, a clutch shaft, a clutch sleeve, a base frame, a blade guard plate and a front cover;

a blade guard plate is fixedly arranged on one side of the base frame, and a front cover is fixedly arranged on one side, far away from the base frame, of the blade guard plate; a rear cover plate is fixedly arranged on the other side of the base frame, a clutch sleeve is rotatably arranged between the front cover and the rear cover plate in a penetrating manner, and a clutch shaft is slidably arranged in the clutch sleeve in a penetrating manner;

the base frame comprises a base frame body, a sliding plate, a positioning block and a positioning block spring;

the base frame body is of a plate-shaped structure, a sliding plate groove is formed in one side of the base frame body, and the sliding plate can be slidably arranged in the sliding plate groove;

the sliding plate comprises a sliding plate body, a latch rod, a clutch shaft rotating groove, a clutch shifting groove and a positioning locking groove, wherein the sliding plate body is provided with the clutch shaft rotating groove, the upper edge of the clutch shaft rotating groove is provided with the clutch shifting groove, and the outer edge of one side of the sliding plate body is provided with the positioning locking groove; a latch rod is fixedly arranged on one side of the sliding plate body;

the base frame body is provided with a bolt groove which is positioned on the bottom surface of the sliding plate groove and penetrates through the base frame body; the sliding plate body is arranged in the sliding plate groove in a sliding mode, a latch rod penetrates through the latch rod groove, one end of the latch rod extends out of the other side of the base frame body, and the latch rod can slide along the length direction of the latch rod groove;

the base frame body is provided with two positioning block spring grooves, and the positioning block spring grooves are positioned between the sliding plate grooves and the edge of the base frame body; the positioning block spring is arranged in the positioning block spring groove; a positioning convex block groove is formed between the two positioning block spring grooves;

a positioning block sliding groove is also formed in the sliding plate groove and communicates the positioning block spring groove, the positioning bump groove and the sliding plate groove; a positioning block is slidably arranged in the positioning block sliding groove;

a positioning lug is fixedly arranged on the positioning block and matched with the positioning lug groove; two spring fixing heads are arranged at one end of the positioning block, and the spring fixing heads are in contact with one end of the positioning block spring; when the sliding plate is arranged in the sliding plate groove, the positioning lug can be clamped into a positioning locking groove formed in the sliding plate and block the sliding of the sliding plate;

the base frame body is also provided with a base frame clutch shaft hole and a base frame clutch rotating hole which form a step hole, and the diameter of the base frame clutch rotating hole is larger than that of the base frame clutch shaft hole;

a clutch shaft rotating groove formed in the sliding plate body corresponds to the base frame clutch rotating hole;

a blade rotating shaft is fixedly arranged on the other side of the base frame body;

a blade guard plate is detachably and fixedly arranged on the other side of the base frame body;

the blade guard plate comprises a guard plate body, an elastic sheet and blades; the protective plate body is provided with a blade groove, one side of the blade groove is provided with a latch bar initial groove, the side edge of the upper part of the blade groove is provided with a spring sheet groove, and a spring sheet is fixedly arranged in the spring sheet groove;

the blade comprises a blade body, a blade rotating shaft hole, a key tooth groove, a blade latch rod sliding groove and a limiting flange; a blade rotating shaft hole is formed in one side of the blade body, a blade latch rod sliding groove is formed in the other side of the blade body, and the blade latch rod sliding groove is matched with the latch rod; a key tooth groove is formed between the blade rotating shaft hole on the blade body and the blade latch rod sliding groove; two ends of the other side of the blade body are respectively provided with a limiting flange;

the blade rotating shaft hole is sleeved on the blade rotating shaft, the protective plate body is sleeved outside the blade, and the blade is positioned in the blade groove and can rotate along the blade rotating shaft at a certain angle; one end of the elastic sheet is elastically pressed on the blade;

a front cover is fixedly arranged on one surface of the guard plate body, which is far away from the base frame;

the front cover comprises a front cover body, a key hole and a front cover rotating shaft hole

The front cover body is provided with a key hole and a front cover rotating shaft hole, the key hole corresponds to the base frame clutch shaft hole, and the front cover rotating shaft hole corresponds to and matches with the blade rotating shaft;

the rear cover plate comprises a rear cover body, a clutch shaft hole, a clutch shaft top plate, a clutch shaft pressure spring and a top plate groove; the rear cover body is provided with a clutch shaft hole and a top plate groove, and the clutch shaft hole is matched with the clutch shaft and corresponds to the base frame clutch shaft hole; the clutch shaft top plate is arranged in the top plate groove in a sliding manner, one end of the clutch shaft top plate is connected with a clutch shaft pressure spring, and the clutch shaft pressure spring is positioned in the top plate groove;

the clutch sleeve comprises a clutch sleeve body, a clutch shaft sliding hole and a clutch shaft tooth shifting groove, the clutch sleeve body is of a tubular structure, the axial direction of the tubular structure is provided with the clutch shaft tooth shifting groove, and the center of the tubular structure is used as the clutch shaft sliding hole;

the clutch sleeve can be rotatably arranged in the clutch shaft hole, the base frame clutch shaft hole, the clutch shaft rotating groove, the key tooth groove and the key hole in a penetrating manner;

the clutch shaft comprises a shaft body, a clutch key and a clutch shifting tooth, wherein the shaft body is of a cylindrical structure, and the clutch key and the clutch shifting tooth are arranged on the shaft body along the axial direction; the clutch key is of a long strip structure and is positioned on one side of the shaft body; the clutch shifting tooth is positioned on the other side of the shaft body; the clutch shifting tooth and the clutch key are arranged on the same axis;

one end of the clutch shaft, which is provided with a clutch key, penetrates through the clutch shaft hole and extends out of the rear cover plate;

when one end of the clutch shaft provided with the clutch shifting teeth penetrates through the clutch shaft rotating groove on the sliding plate and is positioned in the sliding plate to rotate, the clutch shifting teeth can be clamped into the clutch shifting groove and shift the sliding plate to slide left and right;

the clutch shaft extending out of the rear cover plate can be slidably arranged in the shifting block in a penetrating mode.

The blade pivot hole and the blade bolt rod sliding groove are located at two ends of the blade body, the key tooth groove is formed in the middle of the blade pivot hole and the blade bolt rod sliding groove, and the three form a lever structure taking the blade pivot hole as a fulcrum. The key tooth groove rotates a little along the blade rotating shaft hole, the blade latch rod sliding groove is correspondingly moved, and the displacement is larger than that of the key tooth groove, so that the unlocking can be well ensured only by a completely matched key;

the clutch sleeve with the C-shaped structure provided with the clutch shaft shifting tooth grooves can enable the corresponding clutch shaft to freely slide in the clutch sleeve, teeth of a key can also transmit torque and realize the clutch function through the clutch shaft shifting tooth grooves, the structure of a traditional blade lock guide rod is reduced, the key rod does not need a guide blind hole, the size of the key rod is reduced, and the key rod is convenient to carry.

Preferably, a limiting arc plate is further arranged between the base frame and the front cover, surrounds the periphery of the base frame clutch shaft hole and penetrates through the key tooth groove.

The limiting arc plate and the blade rotating shaft hole on the blade are matched with each other to form a relatively closed space, so that the optical fiber and the micro probe can be effectively prevented from extending into the space, and the safety of the lockset is further improved.

Preferably, the front cover further comprises a limiting arc plate groove, and the limiting arc plate groove is matched with the limiting arc plate.

Preferably, the positioning locking groove is of a semicircular structure; the positioning lug is of a cylindrical structure and is matched with the positioning locking groove.

The positioning locking groove is easy to process by adopting a semi-circular structure, and the resistance of the sliding plate in the moving process can be reduced by matching the positioning lug with a cylindrical structure.

Preferably, the latch bar is perpendicular to the skateboard body, and the cross section of the latch bar is square.

The blade bolt rod spout is rectangular groove, and rectangular groove is processed easily, and the cross section of bolt rod is square so that match each other with blade bolt rod spout better, reduces the blade and shakes the momentum.

Preferably, the other end of the positioning block is arranged in a circular arc structure.

The locating piece is pressed on the periphery of the clutch sleeve, the other end of the locating piece is arranged to be of an arc-shaped structure, when the C-shaped clutch sleeve rotates, the C-shaped clutch sleeve can easily pass through the tooth shifting groove of the clutch shaft, and the locating piece also has the function of automatic locating.

Preferably, the upper edge of the blade groove is further provided with a spring piece mounting groove.

The elastic piece mounting groove is convenient for inserting the elastic piece into the elastic piece mounting groove by using tools such as sharp nose pliers and the like.

Preferably, the base frame body is further provided with a base frame fixing hole.

The guard plate body is also provided with a guard plate fixing hole, and the guard plate fixing hole corresponds to the base frame fixing hole;

the front cover is also provided with a front cover fixing hole, and the front cover fixing hole corresponds to the base frame fixing hole;

the rear cover plate is also provided with a rear cover fixing hole, and the rear cover fixing hole corresponds to the base frame fixing hole.

The fixing holes can be fixed with each other by bolts or screws.

Preferably, one side of the clutch shaft top plate, which is far away from the clutch shaft pressure spring, is made into an arc surface structure; when the C-shaped clutch sleeve rotates, the clutch sleeve can easily pass through the tooth shifting groove of the clutch shaft, and the automatic positioning function is also realized.

The key hole is of a step hole structure, the diameter of the large end of the step hole is larger than the outer diameter of the clutch sleeve, and the diameter of the small end of the step hole is larger than the diameter of the clutch shaft and not larger than the inner diameter of the clutch sleeve;

the clutch shaft hole is of a stepped hole structure, the diameter of the large end of the stepped hole is larger than the outer diameter of the clutch sleeve, and the diameter of the small end of the stepped hole is larger than the diameter of the clutch shaft and is not larger than the inner diameter of the clutch sleeve;

the stepped hole structure can restrict the clutch sleeve from moving along the radial direction and only can rotate.

The height of the clutch shifting tooth is larger than that of the clutch key, and the width of the clutch shifting tooth is equal to that of the clutch key. Such a construction can facilitate the free sliding of the clutch shaft within the clutch housing.

Preferably, the shifting head comprises a shifting head frame and a shifting wheel, the shifting wheel is rotatably arranged in the shifting head frame, a fixed threaded hole is formed in one end of the shifting head frame, a shifting head shaft hole matched with the clutch shaft is formed in the shaft center of the shifting head frame connected with the shifting wheel, and the clutch shaft can slide in the shifting head shaft hole along the axial direction;

the blade lock is further provided with a corresponding key, the key is a flagpole key and comprises a key rod, key teeth and a key handle, one end of the key rod is fixedly connected with the key handle, the periphery of the other end of the key rod is fixedly provided with a plurality of key teeth with different heights, and the key rod is of a solid cylindrical structure.

The key rod is of a solid cylindrical structure without a guide blind hole, so that the volume is greatly reduced, and the key rod is convenient to carry.

The utility model discloses beneficial effect includes:

reasonable in design, the structure is ingenious, convenient operation, and stability is good, and factor of safety is high, and the equipment and the maintenance of being convenient for can realize two-way unblanking.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a disassembled view of the overall structure of the present invention;

FIG. 3 is a front view of the base frame;

FIG. 4 is a rear view of the base frame;

FIG. 5 is an isometric view of the base frame;

FIG. 6 is an exploded view of the slide plate on the base frame;

fig. 7 is an exploded view of the positioning block on the base frame;

FIG. 8 is an isometric view of the slide;

FIG. 9 is a schematic view of the general construction of the blade shroud;

FIG. 10 is a schematic view of a blade configuration;

FIG. 11 is a schematic view of the blade protector with the blade removed;

FIG. 12 is a front view of the front cover;

FIG. 13 is a rear view of the front cover;

FIG. 14 is an isometric view of the front cover;

FIG. 15 is a front view of the back cover plate;

FIG. 16 is a rear view of the rear cover plate;

FIG. 17 is an isometric view of the back cover plate;

FIG. 18 is a schematic view of the overall construction of the clutch sleeve;

FIG. 19 is a schematic view of the overall construction of the clutch shaft;

FIG. 20 is a schematic view of the overall construction of the pick;

FIG. 21 is a schematic view of the general construction of the key;

FIG. 22 is a schematic view of the state of the blades in the lock body with the key not yet inserted;

FIG. 23 is a schematic view of the clutch teeth engaging the slide plate clutch grooves;

fig. 24 is a schematic view showing a state in which the blade latch lever slide grooves of the plurality of blades are aligned after the key is inserted and rotated.

In the drawings, each reference numeral denotes:

the lock comprises a lock body 1, a rear cover plate 10, a clutch shaft 11, a clutch sleeve 12, a blade guard plate 14 and a front cover 15;

the rear cover plate 10, the rear cover body 100, the clutch shaft hole 101, the clutch shaft top plate 102, the clutch shaft pressure spring 103 and the top plate groove 104;

the clutch shaft 11, the shaft body 110, the clutch key 112 and the clutch shifting teeth 111;

the clutch sleeve 12, the clutch sleeve body 120, the clutch shaft sliding hole 121 and the clutch shaft tooth shifting groove 122;

a base frame 13,

A base frame body 130,

A sliding plate slot 1300, a positioning block spring slot 1301, a positioning lug slot 1302, a pedestal clutch shaft hole 1303, a blade rotating shaft 1304, a latch rod slot 1305, a pedestal fixing hole 1306, a pedestal clutch rotating hole 1307 and a positioning block sliding slot 1308;

a slide plate 131,

Sliding plate body 1310, latch bar 1311, clutch shaft rotating groove 1312, clutch shifting groove 1313 and positioning locking groove 1314;

a positioning block 132,

Positioning bumps 1320, spring anchor head 1321;

a positioning block spring 133 and a limit arc plate 134;

a blade guard plate 14,

The guard plate comprises a guard plate body 140, a blade groove 1401, a latch bar initial groove 1402, a spring plate groove 1403, a spring plate mounting groove 1404 and a guard plate fixing hole 1405;

a spring plate 141,

The blade 142, the blade body 1420, the blade spindle hole 1421, the key tooth groove 1422, the blade latch bar runner 1423, the stop flange 1424;

the front cover 15, the front cover body 1500, the key hole 1501 and the front cover rotating shaft hole 1502;

the shifting block 2, the shifting block frame 20, the shifting wheel 21, the fixed threaded hole 200 and the shifting block shaft hole 201;

key 3, key lever 30, key bit 31, key handle 32.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the accompanying drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The detailed description of the embodiments of the present invention generally described and illustrated in the figures herein is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figure 1, a lever type anti-prying blade lock comprises a lock body 1 and a shifting block 2, wherein two lock bodies are usually required to be matched with one shifting block 2 when the lever type anti-prying blade lock is installed on a common door. The lock body 1 is respectively arranged at two sides of the door plate, the shifting block 2 is arranged in the main lock, and the installation method is similar to that of the existing common lock.

As shown in fig. 2, the lock body 1 includes a rear cover plate 10, a clutch shaft 11, a clutch sleeve 12, a base frame 13, a blade guard 14, and a front cover 15. A blade guard plate 14 is fixedly arranged on one side of the base frame 13, and a front cover 15 is fixedly arranged on one side, far away from the base frame 13, of the blade guard plate 14; the other side of the base frame 13 is fixedly provided with a rear cover plate 10, a clutch sleeve 12 is rotatably arranged between the front cover 15 and the rear cover plate 10 in a penetrating way, and a clutch shaft 11 is slidably arranged in the clutch sleeve 12 in a penetrating way.

As shown in fig. 3 to 8, the base 13 includes a base body 130, a slide plate 131, a positioning block 132, and a positioning block spring 133. The base frame body 130 has a plate-shaped structure, a slide plate groove 1300 is formed on one side of the base frame body, and the slide plate 131 is slidably disposed in the slide plate groove 1300. Referring to fig. 8, the sliding plate 131 includes a sliding plate body 1310, a latch bar 1311, a clutch shaft rotation groove 1312, a clutch groove 1313 and a positioning locking groove 1314, the sliding plate body 1310 is provided with the clutch shaft rotation groove 1312, the upper edge of the clutch shaft rotation groove 1312 is provided with the clutch groove 1313, and one edge of the sliding plate body 1310 is provided with the positioning locking groove 1314. A latch 1311 is fixedly provided to one side of the slider body 1310. The base frame body 130 is provided with a latch groove 1305, which is located on the bottom surface of the slide plate groove 1300 and penetrates through the base frame body 130. The slide board body 1310 is slidably disposed in the slide board groove 1300, the latch bar 1311 is inserted into the latch bar groove 1305, one end of the latch bar 1311 protrudes from the other side of the base frame body 130, and the latch bar 1311 can slide along the length direction of the latch bar groove 1305. Two positioning block spring grooves 1301 are formed in the base frame body 130, and the positioning block spring grooves 1301 are located between the sliding plate grooves 1300 and the edge of the base frame body 130. A positioning block spring 133 is arranged in the positioning block spring groove 1301, and a positioning convex block groove 1302 is arranged between the two positioning block spring grooves 1301. A positioning block sliding groove 1308 is further formed in the sliding plate groove 1300, and the positioning block spring groove 1301, the positioning bump groove 1302 and the sliding plate groove 1300 are communicated with each other through the positioning block sliding groove 1308; a positioning block 132 is slidably disposed in the positioning block slot 1308. A positioning bump 1320 is fixedly arranged on the positioning block 132, and the positioning bump 1320 is matched with the positioning bump slot 1302; two spring fixing heads 1321 are arranged at one end of the positioning block 132, and the spring fixing heads 1321 are in contact with one end of the positioning block spring 133; when the sliding plate 131 is disposed in the sliding plate groove 1300, the positioning protrusion 1320 can be locked into the positioning locking groove 1314 formed on the sliding plate 131 under the action of the spring and block the sliding of the sliding plate 131. The base frame body 130 is further provided with a base frame clutch shaft hole 1303 and a base frame clutch rotating hole 1307 which form a step hole, and the diameter of the base frame clutch rotating hole 1307 is larger than the base frame clutch shaft hole 1303. The radius of the base frame clutch rotating hole 1307 is larger than the length of the clutch shifting tooth 111, and the depth of the base frame clutch rotating hole 1307 is larger than or equal to the height of the clutch shifting tooth 111, that is, the clutch shifting tooth 111 can freely rotate in the base frame clutch rotating hole 1307. The clutch shaft rotating groove 1312 formed on the sliding plate body 1310 corresponds to the base frame clutch rotating hole 1307. A blade rotating shaft 1304 is fixedly arranged at the other side of the base frame body 130.

The positioning locking groove 1314 is of a semicircular structure; the positioning protrusions 1320 are cylindrical structures, and are matched with the positioning locking slots 1314. The positioning locking slot 1314 is easy to process by adopting a semi-circular structure, and the resistance of the sliding plate in the moving process can be reduced by matching with the positioning bump 1320 with a cylindrical structure. Latch bar 1311 is perpendicular to slide plate body 1310, and latch bar 1311 is square in cross section. The other end of the positioning block 132 is set to be a circular arc structure. The positioning block 132 is pressed on the periphery of the clutch sleeve 12, the other end of the positioning block 132 is arranged to be of an arc-shaped structure, when the C-shaped clutch sleeve 12 rotates, the C-shaped clutch sleeve can easily pass through the clutch shaft tooth shifting groove 122, and the automatic positioning function is also realized.

The other side of the base frame body 130 is detachably and fixedly provided with a blade guard plate 14.

It should be noted that, after the whole lock is assembled, if only the latch 1311 is used to lock the blade 142, since the latch 1311 is of a rod-like structure, it is easy for a lawbreaker to break or deform the latch 1311 when he wants to unlock the lock forcibly, and therefore the positioning locking groove 1314 is designed to assist the locking force and has a positioning function.

As shown in fig. 9 to 11, the blade protector 14 includes a protector body 140, a spring 141, and a plurality of blades 142. The shroud body 140 is formed with a vane slot 1401 which matches the structure of the vane 142, and the vane 142 can rotate therein at a certain angle in the circumferential direction. A latch initial slot 1402 is arranged on one side of the blade slot 1401, a spring plate slot 1403 is arranged on the side edge of the upper portion of the blade slot 1401, a spring plate 141 is fixedly arranged in the spring plate slot 1403, the spring plate 141 is of a claw-shaped structure, and the thickness of each claw is equal to that of each blade. As shown in fig. 10, the blade 142 includes a blade body 1420, a blade spindle bore 1421, a key spline 1422, a blade latch runner 1423, a stop flange 1424; a blade rotating shaft hole 1421 is formed in one side of the blade body 1420, a blade latch rod sliding groove 1423 is formed in the other side of the blade body 1420, and the blade latch rod sliding groove 1423 is matched with the latch rod 1311; a key tooth groove 1422 is formed between the blade rotating shaft hole 1421 and the blade latch rod sliding groove 1423 on the blade body 1420; the other side of the blade body 1420 has a stop flange 1424 at each end. The blade latch bar slots 1423 on different blades 142 are positioned differently and are angularly offset from one another.

The blade rotating shaft hole 1421 is sleeved on the blade rotating shaft 1304, the guard plate body 140 is sleeved outside the blade 142, and the blade 142 is located in the blade groove 1401 and can rotate along the blade rotating shaft 1304 at a certain angle; one end of the elastic piece 141 is pressed on the blade 142.

Under the condition that space adjustment allows, longitudinal grooves can be symmetrically formed in the upper side and the lower side of the blade latch bar sliding groove 1423, so that the whole blade latch bar sliding groove is of a cross-shaped groove structure, and the latch bar 1311 can freely move in the cross-shaped groove.

As shown in fig. 11, in order to facilitate the insertion of the spring plate 141 into the spring plate mounting groove 1404 using a tool such as a nipper pliers, the blade groove 1401 is further provided at an upper edge thereof with a spring plate mounting groove 1404.

A front cover 15 is fixedly arranged on one surface of the guard plate body 140 far away from the base frame 13.

As shown in fig. 12 to 14, the front cover 15 includes a front cover body 1500, a key hole 1501, and a front cover spindle hole 1502. The front cover body 1500 is provided with a key hole 1501 and a front cover rotating shaft hole 1502, the key hole 1501 corresponds to the base frame clutch shaft hole 1303, and the front cover rotating shaft hole 1502 corresponds to and matches with the blade rotating shaft 1304. The key hole 1501 is a step hole structure, the diameter of the large end of the step hole is larger than the outer diameter of the clutch sleeve 12, and the diameter of the small end of the step hole is larger than the diameter of the clutch shaft 11 and not larger than the inner diameter of the clutch sleeve 12.

In order to effectively prevent the optical fiber and the micro probe from extending into the lock and further increase the safety of the lock, a limit arc plate 134 is further arranged between the base frame 13 and the front cover 15. The front cover 15 further includes a limit arc plate slot 1503, and the limit arc plate slot 1503 is matched with the limit arc plate 134. The limiting arc plate 134 surrounds the periphery of the base frame clutch shaft hole 1303 and penetrates through the key tooth grooves 1422, and in a natural state, the limiting arc plate 134 and the blade rotating shaft holes 1421 on the blades are mutually matched to form a relatively closed space for preventing foreign matters from extending into the blade rotating shaft holes 1421.

As shown in fig. 15 to 17, the rear cover plate 10 includes a rear cover body 100, a clutch shaft hole 101, a clutch shaft top plate 102, a clutch shaft pressure spring 103, and a top plate groove 104; the rear cover body 100 is provided with a clutch shaft hole 101 and a top plate groove 104, and the clutch shaft hole 101 is matched with the clutch shaft 11 and corresponds to the base frame clutch shaft hole 1303; the top plate groove 104 is communicated with the clutch shaft hole 101, a clutch shaft top plate 102 is slidably arranged in the top plate groove 104, one end of the clutch shaft top plate 102 is connected with a clutch shaft pressure spring 103, and the clutch shaft pressure spring 103 is positioned in the top plate groove 104. One side of the clutch shaft top plate 102, which is far away from the clutch shaft pressure spring 103, is made into a circular arc surface structure; when the C-shaped clutch sleeve 12 rotates, the C-shaped clutch sleeve can easily pass through the clutch shaft tooth shifting groove 122 and has the function of automatic positioning. The clutch shaft hole 101 is of a step hole structure, the diameter of the large end of the step hole is larger than the outer diameter of the clutch sleeve 12, and the diameter of the small end of the step hole is larger than the diameter of the clutch shaft 11 and not larger than the inner diameter of the clutch sleeve 12.

As shown in fig. 18, the clutch sleeve 12 includes a clutch sleeve body 120, a clutch shaft sliding hole 121, and a clutch shaft cogging slot 122, the clutch sleeve body 120 is a tubular structure, a clutch shaft cogging slot 122 is disposed in an axial direction of the tubular structure, and a center of the tubular structure serves as the clutch shaft sliding hole 121. The clutch sleeve 12 is rotatably inserted into the clutch shaft hole 101, the base frame clutch shaft hole 1303, the clutch shaft rotating groove 1312, the key tooth groove 1422 and the key hole 1501.

As shown in fig. 19, the clutch shaft 11 is made of a carbon-based powder metallurgy material, and includes a shaft body 110, a clutch key 112, and clutch teeth 111. The shaft body 110 is a solid cylinder structure, and a clutch key 112 and a clutch dial 111 are axially arranged on the shaft body 110. The clutch key 112 is a long bar structure and is located at one side of the shaft body 110. The clutch dial 111 is located on the other side of the shaft body 110. The clutch dial 111 and the clutch key 112 are disposed on the same axis. One end of the clutch shaft 11 provided with the clutch key 112 protrudes out of the rear cover plate 10 through the clutch shaft hole 101. When one end of the clutch shaft 11, which is provided with the clutch teeth 111, passes through the clutch shaft rotating groove 1312 on the sliding plate 131 and rotates in the sliding plate 131, the clutch teeth 111 can be clamped into the clutch grooves 1313 and slide the sliding plate 131 left and right. A clutch shaft 11 extending out of the rear cover plate 10 is slidably arranged in the shifting block 2 in a penetrating way. The height of the clutch shifting tooth 111 is larger than that of the clutch key 112, and the width of the clutch shifting tooth 111 is equal to that of the clutch key 112. Such a configuration can facilitate free sliding movement of clutch shaft 11 within clutch sleeve 12.

As shown in fig. 20, the dial 2 includes a dial holder 20 and a dial wheel 21, the dial wheel 21 is rotatably disposed in the dial holder 20, and a fixing threaded hole 200 is formed at one end of the dial holder 20. The shaft center of the dial head frame 20 connected with the dial wheel 21 is provided with a dial shaft hole 201, and the dial shaft hole 201 can accommodate the clutch shaft 11 and enable the clutch shaft to rotate freely in the hole. The dial 21 has a hole formed therein which is adapted to the clutch shaft 11 and which, in the event of rotation of the clutch shaft 11, also causes the dial 21 to rotate, and which also allows the clutch shaft 11 to slide freely in the axial direction inside the dial 21. The structure and function of the shifting block 2 are the same as those of the existing shifting block, and the only difference is that the shape of the shifting block shaft hole 201 is corresponding to the shape of the clutch shaft 11. Therefore, the structure of the existing shifting block can be directly used for simple transformation.

In addition, a base frame fixing hole 1306 is further formed in the base frame body 130, a guard plate fixing hole 1405 is further formed in the guard plate body 140, the guard plate fixing hole 1405 corresponds to the base frame fixing hole 1306, a front cover fixing hole 1505 is further formed in the front cover 15, the front cover fixing hole 1505 corresponds to the base frame fixing hole 1306, a rear cover fixing hole 105 is further formed in the rear cover plate 10, the rear cover fixing hole 105 corresponds to the base frame fixing hole 1306, and the fixing holes can be fixed to each other through bolts or screws.

As shown in fig. 21, the blade lock is further provided with a corresponding key 3, and the key 3 is a flag pole key. The key 3 comprises a key rod 30, a key bit 31 and a key handle 32, one end of the key rod 30 is fixedly connected with the key handle 32, a plurality of key bits 31 with different heights are fixedly arranged on the periphery of the other end of the key rod 30, and the key rod 30 is of a solid cylindrical structure. Because the key rod 30 is a solid cylinder structure without a blind guiding hole, the volume is greatly reduced, and the key rod is convenient to carry.

When the lock is installed, as shown in fig. 1, the shifting block 2 is installed in the main lock, the main lock is installed in the door, the installation method of the lock is the same as that of the existing lock, two lock bodies 1 are respectively installed at two ends (two sides of a door plate) of the shifting block 2, and the lock bodies 1 correspond to each other. As shown in fig. 19 and 20, the clutch shafts 11 on the lock bodies 1 on both sides are respectively slidably inserted into the corresponding dials 2, and when the clutch shaft 11 on any side slides toward the dial 2, the clutch shaft 11 can pass through the dial 21 and push the other clutch shaft 11 to disengage from the dial 21.

In addition, in order to prevent the clutch shaft 11 from being automatically separated from the dial wheel 21, a pressure spring may be disposed in a hole of the dial wheel 21, and the pressure spring contacts the clutch shaft 11 and is pushed by the pressure spring to be separated from the hole in the dial wheel 21 when the clutch shaft 11 is not acted by an external force.

The working process is as follows:

when the lock is not inserted into the matching key 3, the internal structure is as shown in fig. 22, under the elastic force of the claw-like spring 141, each blade 142 corresponding to each claw of the spring 141 moves downward along the blade rotation axis 1304 until the position-limiting flange 1424 of the blade end contacts the latch bar 1311 and is blocked by the latch bar 1311 to stop rotating. In this state, the latch bar 1311 cannot move because the blade latch bar runners 1423 of the blades 142 are staggered, and the slide plate 131 cannot move because the latch bar 1311 is integrated with the slide plate 131. As shown in fig. 23, when the slide plate 131 cannot move, the edges of the clutch groove 1313 and the clutch shaft rotation groove 1312 of the slide plate 131 prevent the clutch teeth 111 of the clutch shaft 11 from rotating together, and the entire clutch shaft 11 cannot rotate. The clutch shaft 11 cannot rotate, and the dial wheel 21 cannot be driven to rotate, so that the main lock cannot be unlocked.

As shown in figure 24, when the key 3 is needed to be used for unlocking or locking reversely, the key rod 30 on the key 3 is aligned with the key hole 1501 on the front cover 15 and inserted, the key 3 can smoothly enter the clutch sleeve 12 because the clutch sleeve 12 and the key hole are matched and corresponding to each other, at the moment, the key teeth 31 on the key 3 are just positioned in the clutch shaft tooth space 122 of the clutch sleeve 12, and then the key 3 can be rotated for unlocking. Due to different heights, the key bit 31 on the key 3 is in contact with the upper edge of the key tooth groove 1422 on the blade 142, so that the blade 142 rotates upwards for a certain angle along the blade rotating shaft 1304 due to external force, and finally all the blades 142 can rotate to the same angle of each blade latch bar sliding groove 1423 and are positioned in the direction that the latch bar 1311 slides rightwards, that is, the blade latch bar sliding grooves 1423 on a plurality of blades jointly form a channel which does not obstruct the latch bar 1311 from sliding rightwards. At the same time, as the key 3 rotates, the side edge of the key bit 31 on the key bit is clamped in the clutch shaft tooth-pulling groove 122 of the clutch sleeve 12, thereby also driving the clutch sleeve 12 to rotate.

The clutch shaft 11 is arranged in the clutch sleeve 12, so that the clutch shaft 11 is driven to rotate, the clutch teeth 111 on the clutch shaft 11 are jacked by the shaft body 110 of the key 3 when the key 3 is inserted into the clutch sleeve 12, the part of the clutch teeth 111 moving out of the hole of the base frame clutch rotating hole 1307 is just below the clutch shifting groove 1313, the other end of the clutch shaft 11 also extends into the shaft hole of the shifting wheel 21 from the shifting block shaft hole 201, and the other clutch shaft inserted into the same shifting block 2 is pushed out of the shaft hole of the shifting wheel 21 to be separated from the shifting wheel.

When the clutch-setting teeth 111 on the clutch shaft 11 rotate, they extend into the clutch-setting grooves 1313 in the sliding plate 131 and drive the sliding plate 131 to slide. As mentioned above, since the blade latch bar chutes 1423 of the multiple blades together form a channel that does not obstruct the sliding movement of the latch bar 1311 to the right, the slide plate 131 can move to the right by a tooth (slot) distance by the clutch teeth 111, and at the same time, the thumb wheel 21 can rotate one turn.

In this way, the key 3 can be rotated 2.5 turns in the lock body, thereby performing an unlocking or counter-locking function.

When it is necessary to unlock from another lock body, the method is the same as the above, after the key 3 is inserted, because the key rod 30 contacts with the clutch shaft on another lock body, the clutch shaft is pressed by the key rod 30 and moves inwards, at this time: the clutch shifting teeth 111 are moved out of the base frame clutch rotating hole 1307 and correspond to the clutch shifting groove 1313, meanwhile, the other end of the clutch shaft also extends into the shaft hole of the shifting wheel 21 from the other end of the shifting block shaft hole 201, and the other clutch shaft inserted into the same shifting block 2 is pushed out of the shaft hole of the shifting wheel 21 to be separated from the shifting wheel. Then the key can be rotated, and the action process is repeated, so that the function of unlocking or locking from the other side can be realized.

The blade pivot hole 1421 and the blade latch bar sliding groove 1423 are located at both ends of the blade body 1420, a key tooth groove 1422 is provided in the middle, and the three form a lever structure using the blade pivot hole 1421 as a fulcrum. The key slot 1422 rotates a little along the blade shaft hole 1421, and the blade latch bar runner 1423 is moved accordingly and the displacement thereof is larger than that of the key slot 1422, so that it can be well ensured that only a completely matched key can be unlocked;

the clutch sleeve 12 with the C-shaped structure provided with the clutch shaft tooth shifting groove 122 can enable the corresponding clutch shaft 11 to freely slide in the clutch sleeve, teeth of a key can transmit torque through the clutch shaft tooth shifting groove 122 and realize the clutch function, the structure of a traditional blade lock guide rod is reduced, the key rod does not need a guide blind hole, the size of the key rod is reduced, and the key rod is convenient to carry.

The utility model relates to a rationally, the structure is ingenious, convenient operation, and stability is good, and factor of safety is high, and the equipment and the maintenance of being convenient for can realize two-way unblanking.

Claims (10)

1. The utility model provides a lever pick-proof blade lock, includes lock body (1), shifting block (2) and key (3), its characterized in that:

the lock body (1) comprises a rear cover plate (10), a clutch shaft (11), a clutch sleeve (12), a base frame (13), a blade guard plate (14) and a front cover (15);

a blade guard plate (14) is fixedly arranged on one side of the base frame (13), and a front cover (15) is fixedly arranged on one side, far away from the base frame (13), of the blade guard plate (14); a rear cover plate (10) is fixedly arranged on the other side of the base frame (13), a clutch sleeve (12) is rotatably arranged between the front cover (15) and the rear cover plate (10) in a penetrating manner, and a clutch shaft (11) is slidably arranged in the clutch sleeve (12) in a penetrating manner;

the pedestal (13) comprises a pedestal body (130), a sliding plate (131), a positioning block (132) and a positioning block spring (133);

the base frame body (130) is of a plate-shaped structure, a sliding plate groove (1300) is formed in one side of the base frame body, and the sliding plate (131) can be arranged in the sliding plate groove (1300) in a sliding mode;

the sliding plate (131) comprises a sliding plate body (1310), a latch rod (1311), a clutch shaft rotating groove (1312), a clutch shifting groove (1313) and a positioning locking groove (1314), the sliding plate body (1310) is provided with the clutch shaft rotating groove (1312), the upper edge of the clutch shaft rotating groove (1312) is provided with the clutch shifting groove (1313), and the outer edge of one side of the sliding plate body (1310) is provided with the positioning locking groove (1314); a latch rod (1311) is fixedly arranged on one side of the sliding plate body (1310);

the pedestal body (130) is provided with a latch rod groove (1305), and the groove is positioned on the bottom surface of the sliding plate groove (1300) and penetrates through the pedestal body (130); the sliding plate body (1310) is arranged in the sliding plate groove (1300) in a sliding mode, a latch rod (1311) penetrates through the latch rod groove (1305), one end of the latch rod (1311) extends out of the other side of the pedestal body (130), and the latch rod (1311) can slide along the length direction of the latch rod groove (1305);

the base frame body (130) is provided with two positioning block spring grooves (1301), and the positioning block spring grooves (1301) are positioned between the sliding plate grooves (1300) and the edge of the base frame body (130); the positioning block spring (133) is arranged in the positioning block spring groove (1301); a positioning convex block groove (1302) is formed between the two positioning block spring grooves (1301);

a positioning block sliding groove (1308) is further formed in the sliding plate groove (1300), and the positioning block spring groove (1301), the positioning lug groove (1302) and the sliding plate groove (1300) are communicated with each other through the positioning block sliding groove (1308); a positioning block (132) is slidably arranged in the positioning block sliding groove (1308);

a positioning lug (1320) is fixedly arranged on the positioning block (132), and the positioning lug (1320) is matched with the positioning lug groove (1302); two spring fixing heads (1321) are arranged at one end of the positioning block (132), and the spring fixing heads (1321) are in contact with one end of the positioning block spring (133); when the sliding plate (131) is arranged in the sliding plate groove (1300), the positioning lug (1320) can be clamped into a positioning locking groove (1314) formed in the sliding plate (131) and block the sliding of the sliding plate (131);

the base frame body (130) is also provided with a base frame clutch shaft hole (1303) and a base frame clutch rotating hole (1307), the base frame clutch shaft hole and the base frame clutch rotating hole form a stepped hole, and the diameter of the base frame clutch rotating hole (1307) is larger than that of the base frame clutch shaft hole (1303);

a clutch shaft rotating groove (1312) formed in the sliding plate body (1310) corresponds to the base frame clutch rotating hole (1307);

a blade rotating shaft (1304) is fixedly arranged on the other side of the pedestal body (130);

the other side of the base frame body (130) is detachably and fixedly provided with a blade guard plate (14);

the blade guard plate (14) comprises a guard plate body (140), an elastic sheet (141) and blades (142); the guard plate body (140) is provided with a blade groove (1401), one side of the blade groove (1401) is provided with a latch rod initial groove (1402), the side edge of the upper part of the blade groove (1401) is provided with a spring piece groove (1403), and a spring piece (141) is fixedly arranged in the spring piece groove (1403);

the blade (142) comprises a blade body (1420), a blade rotating shaft hole (1421), a key tooth groove (1422), a blade latch rod sliding groove (1423) and a limiting flange (1424); a blade rotating shaft hole (1421) is formed in one side of the blade body (1420), a blade latch rod sliding groove (1423) is formed in the other side of the blade body (1420), and the blade latch rod sliding groove (1423) is matched with the latch rod (1311); a key tooth groove (1422) is formed between a blade rotating shaft hole (1421) and a blade bolt rod sliding groove (1423) on the blade body (1420); two ends of the other side of the blade body (1420) are respectively provided with a limit flange (1424);

the blade rotating shaft hole (1421) is sleeved on the blade rotating shaft (1304), the guard plate body (140) is sleeved outside the blade (142), and the blade (142) is positioned in the blade groove (1401) and can rotate along the blade rotating shaft (1304) at a certain angle; one end of the elastic sheet (141) is elastically pressed on the blade (142);

a front cover (15) is fixedly arranged on one surface of the guard plate body (140) far away from the base frame (13);

the front cover (15) comprises a front cover body (1500), a key hole (1501) and a front cover rotating shaft hole (1502)

A key hole (1501) and a front cover rotating shaft hole (1502) are formed in the front cover body (1500), the key hole (1501) corresponds to the base frame clutch shaft hole (1303), and the front cover rotating shaft hole (1502) is correspondingly matched with the blade rotating shaft (1304);

the rear cover plate (10) comprises a rear cover body (100), a clutch shaft hole (101), a clutch shaft top plate (102), a clutch shaft pressure spring (103) and a top plate groove (104); the rear cover body (100) is provided with a clutch shaft hole (101) and a top plate groove (104), and the clutch shaft hole (101) is matched with the clutch shaft (11) and corresponds to the base frame clutch shaft hole (1303); the clutch shaft pressure spring is characterized in that the top sheet groove (104) is communicated with the clutch shaft hole (101), a clutch shaft top sheet (102) is slidably arranged in the top sheet groove (104), one end of the clutch shaft top sheet (102) is connected with the clutch shaft pressure spring (103), and the clutch shaft pressure spring (103) is positioned in the top sheet groove (104);

the clutch sleeve (12) comprises a clutch sleeve body (120), a clutch shaft sliding hole (121) and a clutch shaft tooth shifting groove (122), the clutch sleeve body (120) is of a tubular structure, the axial direction of the tubular structure is provided with the clutch shaft tooth shifting groove (122), and the center of the tubular structure is used as the clutch shaft sliding hole (121);

the clutch sleeve (12) can be rotatably arranged in the clutch shaft hole (101), the base frame clutch shaft hole (1303), the clutch shaft rotating groove (1312), the key tooth groove (1422) and the key hole (1501) in a penetrating mode;

the clutch shaft (11) comprises a shaft body (110), a clutch key (112) and a clutch shifting tooth (111), the shaft body (110) is of a cylindrical structure, and the clutch key (112) and the clutch shifting tooth (111) are arranged on the shaft body (110) along the axial direction; the clutch key (112) is of a long strip structure and is positioned on one side of the shaft body (110); the clutch shifting tooth (111) is positioned on the other side of the shaft body (110); the clutch shifting tooth (111) and the clutch key (112) are arranged on the same axis;

one end of the clutch shaft (11) provided with a clutch key (112) penetrates through the clutch shaft hole (101) and extends out of the rear cover plate (10);

when one end of the clutch shaft (11) provided with the clutch shifting tooth (111) penetrates through a clutch shaft rotating groove (1312) on the sliding plate (131) and is positioned in the sliding plate (131) to rotate, the clutch shifting tooth (111) can be clamped into the clutch shifting groove (1313) and shifts the sliding plate (131) to slide left and right;

the clutch shaft (11) extending out of the rear cover plate (10) can be arranged in the shifting head (2) in a penetrating mode in a sliding mode.

2. A lever type anti-pry blade lock as claimed in claim 1, wherein:

and a limiting arc plate (134) is further arranged between the base frame (13) and the front cover (15), and the limiting arc plate (134) surrounds the periphery of the base frame clutch shaft hole (1303) and penetrates through the key tooth groove (1422).

3. A lever type anti-pry blade lock as claimed in claim 2, wherein:

the front cover (15) further comprises a limiting arc plate groove (1503), and the limiting arc plate groove (1503) is matched with the limiting arc plate (134).

4. A lever type anti-pry blade lock as claimed in claim 1, wherein:

the positioning locking groove (1314) is of a semicircular structure; the positioning lug (1320) is a cylinder structure, and is matched with the positioning locking groove (1314).

5. A lever type anti-pry blade lock as claimed in claim 1, wherein:

the latch rod (1311) is perpendicular to the skateboard body (1310), and the cross section of the latch rod (1311) is square.

6. A lever type anti-pry blade lock as claimed in claim 1, wherein:

the other end of the positioning block (132) is arranged to be of an arc-shaped structure.

7. A lever type anti-pry blade lock as claimed in claim 1, wherein:

the upper edge of the blade groove (1401) is also provided with a spring piece mounting groove (1404).

8. A lever type anti-pry blade lock as claimed in claim 1, wherein:

the pedestal body (130) is also provided with pedestal fixing holes (1306);

the guard plate body (140) is further provided with guard plate fixing holes (1405), and the guard plate fixing holes (1405) correspond to the base frame fixing holes (1306);

the front cover (15) is also provided with a front cover fixing hole (1505), and the front cover fixing hole (1505) corresponds to the base frame fixing hole (1306);

the rear cover plate (10) is further provided with a rear cover fixing hole (105), and the rear cover fixing hole (105) corresponds to the base frame fixing hole (1306).

9. A lever type anti-pry blade lock as claimed in claim 1, wherein:

one side of the clutch shaft top plate (102) far away from the clutch shaft pressure spring (103) is made into an arc surface structure;

the key hole (1501) is of a step hole structure, the diameter of the large end of the step hole is larger than the outer diameter of the clutch sleeve (12), and the diameter of the small end of the step hole is larger than the diameter of the clutch shaft (11) and not larger than the inner diameter of the clutch sleeve (12);

the clutch shaft hole (101) is of a stepped hole structure, the diameter of the large end of the stepped hole is larger than the outer diameter of the clutch sleeve (12), and the diameter of the small end of the stepped hole is larger than the diameter of the clutch shaft (11) and is not larger than the inner diameter of the clutch sleeve (12);

the height of the clutch shifting tooth (111) is larger than that of the clutch key (112), and the width of the clutch shifting tooth (111) is equal to that of the clutch key (112).

10. A lever type anti-pry blade lock as claimed in claim 1, wherein:

the shifting head (2) comprises a shifting head frame (20) and a shifting wheel (21), the shifting wheel (21) is rotatably arranged in the shifting head frame (20), one end of the shifting head frame (20) is provided with a fixed threaded hole (200), a shifting head shaft hole (201) matched with the clutch shaft (11) is formed in the shaft center of the shifting head frame (20) connected with the shifting wheel (21), and the clutch shaft (11) can slide along the axial direction in the shifting head shaft hole (201);

the blade lock is still configured with corresponding key (3), key (3) are the flagpole key, key (3) including key pole (30), key tooth (31) and key handle (32), key pole (30) one end with key handle (32) fixed connection, key pole (30) other end periphery is fixed and is provided with a plurality of key teeth (31) that differ in height, key pole (30) are solid cylinder structure.

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