CN219794955U - Explosion-proof pick-proof and drilling-proof safety lock - Google Patents

Abstract

The utility model discloses an anti-explosion anti-prying anti-drilling safety lock head, which comprises a lock shell body, wherein a group of marble hole groups are respectively processed at a position corresponding to an inner lock core cavity and an outer lock core cavity; the anti-picking marble component is arranged in the marble hole group; the lock shell body is provided with a breakable groove which is easy to break the lock shell body from the breakable groove when the lock is broken by explosion force, and a lock pin component for locking the pulling component after the lock shell body is broken is arranged in the lock shell body; two anti-drilling pin holes are respectively processed on the lock shell body at the positions corresponding to the inner lock cylinder cavity and the outer lock cylinder cavity, and anti-drilling pins for preventing drilling are arranged in the anti-drilling pin holes. The utility model has simple structure and good safety, and integrates various safety anti-theft functions.

Description

Explosion-proof pick-proof and drilling-proof safety lock

Technical Field

The utility model relates to the technical field of locks, in particular to an anti-explosion anti-prying anti-drilling safety lock head.

Background

In the prior art, in order to improve the safety of locks, various anti-theft functions have been developed in many locks, for example, some locks have the ability to be explosion-proof and unlock, others have the ability to be anti-pulling and anti-picking, and others have the ability to prevent electric drill from being forcibly drilled and damaged, but if the functions are integrated on the same lock, the safety of the lock can be improved to a great extent.

Disclosure of Invention

Aiming at the current state of the art, the utility model provides the anti-explosion anti-prying anti-drilling safety lock head which has simple structure, good safety and various anti-theft functions.

The technical scheme adopted for solving the technical problems is as follows:

the anti-explosion, anti-prying and anti-drilling safety lock head comprises a lock shell body which is provided with an inner lock core cavity and an outer lock core cavity in a molding mode, wherein a group of marble hole groups are respectively processed in the lock shell body at positions corresponding to the inner lock core cavity and the outer lock core cavity respectively, an inner lock core is arranged in the inner lock core cavity, an outer lock core is arranged in the outer lock core cavity, a pulling piece assembly notch is formed between the inner lock core cavity and the outer lock core cavity on the lock shell body, and a pulling assembly driven to rotate by the inner lock core or the outer lock core is arranged in the pulling piece assembly notch; the anti-prizing marble component with the anti-prizing function is arranged in the marble hole group; the lock shell body is provided with a broken groove which is formed at the inner side end close to the outer lock core cavity and is easy to break the lock shell body from the broken groove when the lock is disassembled by explosion force, and a lock pin assembly for locking the pulling assembly after the lock shell body is broken is arranged in the lock shell body; two anti-drilling pin holes are respectively processed on the lock shell body at the positions corresponding to the inner lock cylinder cavity and the outer lock cylinder cavity, and anti-drilling pins for preventing drilling are arranged in the anti-drilling pin holes.

In order to optimize the technical scheme, the measures adopted further comprise:

the pulling assembly consists of a pulling piece, a front inner rotating piece, a rear inner rotating piece, an inner rotating piece rivet and a pressure spring; the pulling piece is arranged between the inner lock core cavity and the outer lock core cavity, and the rear inner rotating piece and the front inner rotating piece are sleeved in the pulling piece in a head-tail attached mode; the front end of the rivet of the inner rotating member penetrates through the rear inner rotating member and stretches into the front inner rotating member; the pressure spring is sleeved at the rear end of the rear inner rotating member, the front end of the pressure spring is propped against the rear inner rotating member, and the rear end of the pressure spring is propped against the inner lock cylinder; the pulling member is provided with a pulling member hole pin.

The front end of the front inner rotating member is connected with the outer lock cylinder in a plugging manner, a protruding front pulling block for pulling the rotating member is formed on the peripheral surface of the front inner rotating member, the rear end of the rear inner rotating member is connected with the inner lock cylinder in a plugging manner, and a protruding rear pulling block for pulling the rotating member is formed on the peripheral surface of the rear inner rotating member.

A front clamping spring for preventing the inner lock cylinder from falling out of the inner lock cylinder cavity is clamped between the inner lock cylinder cavity and the pulling piece; the rear end of the outer lock core cavity is provided with a rear clamping spring clamping inlet corresponding to the frangible groove, and a rear clamping spring for preventing the outer lock core from falling out of the outer lock core cavity is clamped in the rear clamping spring clamping inlet.

The lock shell body is provided with a lock pin hole at a position corresponding to the front inner rotating piece; the lock pin assembly comprises a lock pin spring and a lock pin, wherein the lock pin spring and the lock pin are encapsulated in the lock pin hole by a seal pin; the front inner rotating member is provided with a bolt hole at a position corresponding to the bolt hole, and a baffle plate which is used for preventing the bolt from being inserted into the bolt hole to lock the front inner rotating member under normal condition is arranged below the front inner rotating member.

Each ball hole group consists of six ball holes which are arranged at equal intervals, and an anti-drilling ball assembly consisting of an anti-drilling ball and a reset spring is packaged in the first ball hole from outside to inside through a sealing pin; the anti-prizing marble component is packaged in the remaining five marble holes through the sealing pin.

The anti-prizing marble component consists of an anti-prizing marble and a reset spring; two annular limiting grooves are formed in the peripheral surface of the anti-prizing marble; the front end of the baffle is provided with a sleeve hole which is used for being sleeved on the anti-prizing marble.

The inner lock cylinder and the outer lock cylinder are respectively provided with an upper marble which is matched with the anti-prizing marble and the anti-drilling marble in a propping way.

The anti-drilling pin holes are arranged on two sides between the first pin holes and the second pin holes; a balance mechanism mounting hole is formed in the clamping position of the lock clamp on the bottom surface of the lock shell body, and a balance mechanism for keeping the lock shell body at a positioned balance stable position in the clamping position of the lock clamp is arranged in the balance mechanism mounting hole.

The balance mechanism consists of a positioning pin and a compression spring which is pressed in a mounting hole of the balance mechanism through the positioning pin; or the balance mechanism is a balance pin fixedly arranged in the mounting hole of the balance mechanism; or the balance mechanism is a balance screw rod which is spirally arranged in the mounting hole of the balance mechanism.

Compared with the prior art, the lock shell body is formed with the inner lock core cavity and the outer lock core cavity, the inner lock core cavity is internally provided with the inner lock core, and the outer lock core cavity is internally provided with the outer lock core. The pulling component is arranged in a pulling component assembly notch formed between the inner lock core cavity and the outer lock core cavity, and the pulling component can be driven to rotate by rotating the inner lock core or the outer lock core through a key, so that the functions of unlocking, back locking and the like are realized. The anti-prying marble component is arranged in the marble hole group formed in the lock shell body, and the anti-prying marble has an anti-prying function, so that unlocking of articles such as iron wires can be effectively avoided. The lock shell body is also provided with a breakable groove, when a violent lock is disassembled, the lock shell body is broken from the breakable groove, so that a locking pin assembly arranged in the lock shell body locks the pulling assembly, and the aim of incapability of unlocking is fulfilled. The lock shell body is also internally provided with an anti-drilling pin which is a cylindrical pin made of special materials, so that the difficulty of drilling can be increased, and the purpose of drilling prevention is achieved.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a schematic view of the assembly of the present utility model with a locking clip;

FIG. 3 is a cross-sectional block diagram of the present utility model;

FIG. 4 is a schematic perspective view of a lock case body according to the present utility model;

FIG. 5 is a schematic view of the structure of the pick-proof pins of the present utility model;

FIG. 6 is a schematic view of the structure of the baffle plate of the present utility model;

FIG. 7 is a schematic view of the structure of the present utility model in an open state by violent disassembly;

FIG. 8 is a schematic diagram of a balancing mechanism of the present utility model;

FIG. 9 is a second schematic diagram of the balance mechanism of the present utility model;

FIG. 10 is a third schematic diagram of the balance mechanism of the present utility model.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 10 are schematic structural views of the present utility model.

Wherein the reference numerals are as follows: the anti-drilling pin F1, the reset spring F2, the anti-picking pin F3, the limiting groove F31, the front clamp spring H1, the rear clamp spring H2, the lock clip J, the pin hole k, the upper pin P, the seal pin X, the lock housing body 1, the inner lock core cavity 1a, the outer lock core cavity 1b, the pulling member assembly notch 1c, the frangible groove 1d, the anti-drilling pin hole 1e, the lock pin hole 1F, the rear clamp spring clip inlet 11, the inner lock cylinder 2, the outer lock cylinder 3, the pulling assembly 4, the pulling member 41, the pulling member hole pin 411, the front inner rotating member 42, the lock pin hole 42a, the front pulling block 421, the rear inner rotating member 43, the rear pulling block 431, the inner rotating member rivet 44, the pressure spring 45, the lock pin assembly 5, the lock pin spring 51, the lock pin 52, the anti-drilling pin 6, the blocking piece 7, the sleeve hole 7a, the balance mechanism 8, the positioning pin 81, the compression spring 82, the balance pin 83, the balance screw 84 and 9.

As shown in fig. 1 to 10, the present utility model discloses an explosion-proof and prying-proof and drilling-proof safety lock head having functions of preventing violent removal of a lock, preventing prying of a lock, and preventing electric drill drilling of a lock. The safety lock head comprises a lock shell body 1, an inner lock core cavity 1a and an outer lock core cavity 1b are integrally formed in the lock shell body 1, and a pulling piece assembly notch 1c is formed between the inner lock core cavity 1a and the outer lock core cavity 1b. The lock shell body 1 is also respectively provided with a group of marble hole groups at the position corresponding to the inner lock core cavity 1a and the outer lock core cavity 1b, and each marble hole group consists of six marble holes k which are arranged at equal intervals. The pin holes k in the pin hole group corresponding to the inner plug cavity 1a are penetrated upwards to the inner plug cavity 1a from the bottom surface of the lock shell body 1. The pin holes k in the pin hole group corresponding to the outer core cavity 1b are penetrated upward from the bottom surface of the lock case body 1 to the outer core cavity 1b. An inner lock cylinder 2 is arranged in the inner lock cylinder cavity 1a, and an outer lock cylinder 3 is arranged in the outer lock cylinder cavity 1b. An upper marble P is arranged in the inner lock cylinder 2 and the outer lock cylinder 3 corresponding to each marble hole k.

The pulling component 4 is arranged in the pulling component assembly notch 1c formed by the lock shell body 1, and when the inner lock cylinder 2 or the outer lock cylinder 3 is inserted into the matched key 9, the key 9 can be utilized to drive the pulling component 4 to rotate through the inner lock cylinder 2 or the outer lock cylinder 3, so that the purposes of unlocking, locking or back locking are achieved. In order to realize the anti-prying function of the lock cylinder, an anti-prying marble component with the anti-prying function is arranged in the marble hole group. In order to prevent external violent disassembly, the lock shell body 1 of the utility model is provided with the frangible groove 1d formed at the inner side end close to the outer lock cylinder cavity 1b, and the frangible groove 1d is easy to break the lock shell body 1 from the frangible groove when the lock is disassembled by explosion force, so that the part which is positioned at the outer side of the door and is easy to be exposed is broken, and a violator does not have any place to go down. The lock shell body 1 is also internally provided with the lock pin assembly 5, the lock pin assembly 5 is limited in a normal state, when the lock shell body 1 is disconnected, the limit on the lock pin assembly 5 is released, and the lock pin assembly 5 acts to lock the pulling assembly 1, so that the pulling assembly 1 and the rest part of the lock shell body 1 are locked together and cannot rotate. Fig. 2 is a schematic structural view of the security lock head of the present utility model mounted on the lock clip J, and as shown in the drawing, two anti-drilling pin holes 1e are respectively processed on the lock housing body 1 at positions corresponding to the inner lock core cavity 1a and the outer lock core cavity 1b, and anti-drilling pins 6 for preventing drilling are mounted in the anti-drilling pin holes 1 e. The anti-drilling pin 6 is a cylindrical pin made of special hard materials, and can prevent an electric drill from drilling, so that the difficulty of damaging a lockset by the electric drill from the outside is increased.

In the embodiment shown in fig. 3, the pulling assembly 4 is composed of a pulling member 41, a front inner rotating member 42, a rear inner rotating member 43, an inner rotating member rivet 44 and a pressure spring 45. The pulling member 41 is provided between the inner cylinder chamber 1a and the outer cylinder chamber 1b, and a pulling block for pulling other parts in the lock when rotated is formed at the lower end of the outer peripheral surface thereof. The rear inner rotary member 43 and the front inner rotary member 42 are fitted in the pulling member 41 end to end, and the front end of the inner rotary member rivet 44 passes through the rear inner rotary member 43 and extends into the front inner rotary member 42. The pressure spring 45 is sleeved at the rear end of the rear inner rotating member 43, the front end of the pressure spring 45 is propped against the rear inner rotating member 43, and the rear end of the pressure spring 45 is propped against the inner lock cylinder 2; the puller 41 is fitted with a puller hole pin 411.

In the embodiment, the front end of the front inner rotating member 42 is connected with the outer lock cylinder 3 in a plugging manner, a front pulling block 421 and a connecting pulling block are formed on the peripheral surface of the front inner rotating member 42 at 180 degrees circumferentially, and the front inner rotating member 42 is connected with the outer lock cylinder 3 in a plugging manner by utilizing the connecting pulling block, so that the outer lock cylinder 3 can drive the front inner rotating member 42 to rotate through the connecting pulling block. The front inner rotating member 42 is connected with the pulling member 41 through the front pulling block 421, so that the front inner rotating member 42 can drive the pulling member 41 to rotate through the front pulling block 421.

The rear end of the rear inner rotating member 43 is connected with the inner lock cylinder 2 in an inserting mode, a rear pulling block 431 and a connecting pulling block are formed on the peripheral surface of the rear inner rotating member 43 in a circumferential direction at a distance of 180 degrees, the rear inner rotating member 43 can be in driving connection with the inner lock cylinder 2 through the connecting pulling block, and the rear pulling block 431 is in driving connection with the pulling member 41 to achieve the purpose of driving the pulling member 41 to rotate. An inner block for mating with the rear block 431 and the front block 421 is formed on the inner peripheral surface of the drawer 41.

In the embodiment, as can be seen from fig. 3, a front clamp spring H1 for preventing the inner lock cylinder 2 from being separated from the inner lock cylinder cavity 1a is clamped between the inner lock cylinder cavity 1a and the pulling member 41, and a clamp spring groove for clamping the front clamp spring H1 is formed on the inner lock cylinder 2 near the front end, i.e. at the inner side end. The rear end of the outer lock core cavity 1b is provided with a rear clamping spring clamp inlet 11 at the position corresponding to the frangible groove 1d, and a rear clamping spring H2 for preventing the outer lock core 3 from being separated from the outer lock core cavity 1b is clamped in the rear clamping spring clamp inlet 11. The rear clamping spring card inlet 11 is correspondingly connected with the breakable slot 1d to form a breakable belt on the lock housing body 1, so that when the lock is opened violently, the lock housing body 1 is easily twisted off by a large force from the breakable belt. The outer lock core 3 is provided with a breakable clamping groove which is formed at the position close to the rear end, namely the inner side end, and the rear clamping spring H2 can be clamped in the breakable clamping groove, so that the outer lock core 3 can be twisted off by a large force from the breakable clamping groove when being subjected to violent unlocking. The easy-to-break clamping groove is formed at the inner side position of the marble hole group of the outer lock cylinder 3.

In the embodiment, the lock case body 1 is formed with a lock pin hole 1f at a position corresponding to the front inner rotary member 42; the lock pin assembly 5 includes a lock pin spring 51 and a lock pin 52 enclosed within the lock pin bore 1f by the seal pin X. The front inner rotor 42 is formed with a latch hole 42a at a position corresponding to the latch hole 1f, and a stopper 7 for normally preventing the latch 52 from being inserted into the latch hole 42a to latch the front inner rotor 42 is provided on the lower surface of the front inner rotor 42.

Each ball hole group consists of six ball holes k which are arranged at equal intervals, wherein the six ball holes k are arranged in the first ball hole k from outside to inside, and an anti-drilling ball assembly consisting of an anti-drilling ball F1 and a reset spring F2 is packaged in the first ball hole k through a sealing pin X; the tamper-resistant pin assembly is encapsulated in the remaining five pin bores k through the sealing pin X.

The anti-prizing marble component consists of an anti-prizing marble F3 and a reset spring F2; the peripheral surface of the anti-prizing marble F3 is provided with two annular limiting grooves F31. As shown in fig. 6, a sleeve hole 7a for being fitted over the pick-proof pin F3 is formed at the front end of the retainer 7. The pick-proof marble F3 arranged in the innermost marble hole k is connected with the sleeve hole 7a of the baffle plate 7 in a sleeved mode.

As shown in fig. 3, in a normal state, the blocking piece 7 is placed under the front inner rotary member 42 to block the latch hole 42a, so that the latch 52 cannot be inserted into the latch hole 42a by the elastic force of the latch spring 51, and thus the pulling assembly 4 can be rotated. As shown in fig. 7, when a violent unlocking is performed, the part of the lock housing body 1 outside the frangible belt and the part of the outer lock cylinder 3 outside the frangible clamping groove are pulled out of the lock hole on the door by violent twisting, and at this time, the blocking piece 7 is sleeved on the anti-prizing marble F3, so that the blocking piece 7 can be pulled out at the same time. After the blocking piece 7 is pulled out to expose the latch hole 42a, the latch 52 can be inserted into the latch hole 42a to lock the forward inner rotary member 42.

In the embodiment, as shown in fig. 3, the upper pins P installed in the inner plug 2 and the upper pins P in the outer plug 3 are matched with the pick-proof pins F3 or the drill-proof pins F1 installed in the corresponding pin holes k in a propping manner.

The anti-drilling pin holes 1e of the present utility model are provided on both sides between the first pin holes k and the second pin holes k.

A balance mechanism mounting hole is formed in the bottom surface of the lock case body 1 in the snap-fit position of the lock clip J, and a balance mechanism 8 is mounted in the balance mechanism mounting hole. After the lock case body 1 and the outer lock cylinder 3 are torsionally broken, the balance mechanism 8 can keep the balance and stable positions of the rest parts of the lock case body 1 and the like in the clamping position of the lock clip J, thereby preventing a thief from opening the lock body from the side face of the lock body hole.

In the embodiment, as shown in fig. 8, the balance mechanism 8 of the utility model is composed of a positioning pin 81 and a compression spring 82, wherein the positioning pin 81 is locked at the orifice of the mounting hole of the balance mechanism in an anti-falling way, and the compression spring 82 is pressed in the mounting hole of the balance mechanism through the positioning pin 81.

Fig. 9 shows a balancing mechanism 8 of another construction of the present utility model, and as shown, the balancing mechanism 8 is a balancing pin 83 fixedly mounted in a balancing mechanism mounting hole. Fig. 10 shows a balancing mechanism 8 of a third construction according to the present utility model, and as shown, the balancing mechanism 8 is a balancing screw 84 screw-mounted in a balancing mechanism mounting hole.

The preferred embodiments of this utility model have been described so far that various changes or modifications may be made by one of ordinary skill in the art without departing from the scope of this utility model.

Claims (10)

1. The utility model provides an explosion-proof pick-proof drilling-proof safety tapered end, has lock shell body (1) of interior lock core chamber (1 a) and outer lock core chamber (1 b) including the shaping, lock shell body (1) in respectively correspond interior lock core chamber (1 a) department and outer lock core chamber (1 b) department each processing have a set of marble hole group, interior lock core chamber (1 a) in be equipped with interior lock core (2), outer lock core chamber (1 b) in be equipped with outer lock core (3), characterized by: a pulling piece assembly notch (1 c) is formed between the inner lock core cavity (1 a) and the outer lock core cavity (1 b) on the lock shell body (1), and a pulling component (4) driven to rotate by the inner lock core (2) or the outer lock core (3) is arranged in the pulling piece assembly notch (1 c); the anti-prying marble component with the anti-prying function is arranged in the marble hole group; the lock case body (1) is provided with a frangible groove (1 d) which is formed at the inner side end close to the outer lock cylinder cavity (1 b) and is easy to break the lock case body (1) from the frangible groove when the lock is broken by explosion force, and the lock case body (1) is internally provided with a lock pin assembly (5) which is used for locking the pulling assembly (4) after the lock case body (1) is broken; the lock shell body (1) is respectively provided with two anti-drilling pin holes (1 e) at the position corresponding to the inner lock core cavity (1 a) and the outer lock core cavity (1 b), and anti-drilling pins (6) for preventing drilling are arranged in the anti-drilling pin holes (1 e).

2. The explosion-proof pick-proof drilling-proof safety lock head according to claim 1, wherein: the pulling assembly (4) consists of a pulling piece (41), a front inner rotating piece (42), a rear inner rotating piece (43), an inner rotating piece rivet (44) and a pressure spring (45); the pulling piece (41) is arranged between the inner lock core cavity (1 a) and the outer lock core cavity (1 b), and the rear inner rotating piece (43) and the front inner rotating piece (42) are sleeved in the pulling piece (41) in a head-tail attached mode; the front end of the inner rotating member rivet (44) penetrates through the rear inner rotating member (43) and stretches into the front inner rotating member (42); the pressure spring (45) is sleeved at the rear end of the rear inner rotating member (43), the front end of the pressure spring (45) is propped against the rear inner rotating member (43), and the rear end of the pressure spring (45) is propped against the inner lock cylinder (2); the pulling piece (41) is provided with a pulling piece hole pin (411).

3. The explosion-proof pick-proof drilling-proof safety lock head according to claim 2, characterized in that: the front end of the front inner rotating member (42) is connected with the outer lock cylinder (3) in an inserting mode, a protruding front pulling block (421) for pulling the rotating pulling member (41) to rotate is formed on the peripheral surface of the front inner rotating member (42), the rear end of the rear inner rotating member (43) is connected with the inner lock cylinder (2) in an inserting mode, and a protruding rear pulling block (431) for pulling the rotating pulling member (41) to rotate is formed on the peripheral surface of the rear inner rotating member (43).

4. The explosion-proof pick-proof drilling-proof safety lock head according to claim 3, wherein: a front clamping spring (H1) for preventing the inner lock cylinder (2) from being separated from the inner lock cylinder cavity (1 a) is clamped between the inner lock cylinder cavity (1 a) and the pulling piece (41); the rear end of the outer lock core cavity (1 b) is provided with a rear clamping spring clamp inlet (11) formed at the position corresponding to the frangible groove (1 d), and a rear clamping spring (H2) for preventing the outer lock core (3) from falling out of the outer lock core cavity (1 b) is clamped in the rear clamping spring clamp inlet (11).

5. The explosion-proof pick-proof drilling-proof safety lock head according to claim 4, wherein: a lock pin hole (1 f) is formed in the lock shell body (1) at a position corresponding to the front inner rotating piece (42); the lock pin assembly (5) comprises a lock pin spring (51) and a lock pin (52) which are encapsulated in a lock pin hole (1 f) by a seal pin (X); the front inner rotating member (42) is provided with a bolt hole (42 a) formed at a position corresponding to the bolt hole (1 f), and a baffle (7) for preventing the bolt (52) from being inserted into the bolt hole (42 a) to lock the front inner rotating member (42) under normal conditions is arranged below the front inner rotating member (42).

6. The explosion-proof pick-proof drilling-proof safety lock head according to claim 5, wherein: each ball hole group consists of six ball holes (k) which are arranged at equal intervals, and an anti-drilling ball assembly consisting of an anti-drilling ball (F1) and a reset spring (F2) is packaged in the first ball hole (k) from outside to inside through a sealing pin (X); the anti-prizing marble component is packaged in the remaining five marble holes (k) through the sealing pin (X).

7. The explosion-proof pick-proof drilling-proof safety lock head according to claim 6, wherein: the anti-prizing marble component consists of an anti-prizing marble (F3) and a return spring (F2); two annular limiting grooves (F31) are formed in the peripheral surface of the anti-prizing marble (F3); the front end of the baffle (7) is provided with a sleeve hole (7 a) which is sleeved on the anti-prizing marble (F3).

8. The explosion-proof pick-proof drilling-proof safety lock head according to claim 7, wherein: the inner lock cylinder (2) and the outer lock cylinder (3) are respectively provided with an upper marble (P) which is used for being in propping connection with the anti-prying marble (F3) and the anti-drilling marble (F1).

9. The explosion-proof pick-proof drilling-proof safety lock head according to claim 8, wherein: the anti-drilling pin holes (1 e) are arranged at two sides between the first pin holes (k) and the second pin holes (k); a balance mechanism mounting hole is formed in the clamping position of the lock clamp (J) on the bottom surface of the lock shell body (1), and a balance mechanism (8) for enabling the lock shell body (1) to keep a positioning balance stable position in the clamping position of the lock clamp (J) is arranged in the balance mechanism mounting hole.

10. The explosion-proof pick-proof drilling-proof safety lock head according to claim 9, wherein: the balance mechanism (8) consists of a positioning pin (81) and a compression spring (82) which is pressed in a mounting hole of the balance mechanism through the positioning pin (81); or the balance mechanism (8) is a balance pin (83) fixedly arranged in the mounting hole of the balance mechanism; or the balance mechanism (8) is a balance screw (84) which is spirally arranged in the mounting hole of the balance mechanism.