TWI594706B - Hard hat lock - Google Patents

Description

Hard hat lock

The present invention relates to a safety helmet lock, and more particularly to a safety helmet lock that includes a lock fitted on a locomotive and a lock fitted to the safety helmet for locking the safety helmet to prevent theft.

In Taiwan, locomotives are a commonly used means of transportation. For safety reasons, helmets need to be worn when riding a locomotive. However, due to the large size of the helmets, some locomotive compartments cannot accommodate helmets. Most locomotives with helmets can only be placed with one helmet in the compartment, so if there are two helmets, at least one helmet needs to be placed on the outside of the locomotive. A common choice is to The helmet is sleeved on the outside of the mirror of the locomotive. Since the general locomotive does not provide an additional lock for locking the helmet, the helmet placed outside the locomotive can easily be stolen if the helmet is not placed in the compartment of the locomotive.

In order to solve the problem, the present invention provides a helmet lock, comprising: a body comprising a receiving slot and a locking slot, the base further comprising an inlet communicating with the receiving slot; and a latching block at a latching position Displaceably disposed between the release positions in the pocket, a lock block that can be lockedly mounted in the chute, the lock block is coupled with the block, and the lock block can be locked in a locked position when not locked Displacement between an unlocking position, a locking buckle, comprising a locking end, the locking buckle is coupled to a fastening strap of the safety helmet, the locking end of the locking buckle is allowed to enter the receiving slot through the inlet and can be engaged with the card Block snaps.

In a state where the lock block is in the locked position and is locked, the lock block is not allowed to be displaced from the locked position to the unlocked position, and in the state where the lock block is in the locked position and released, the lock block is allowed to be unlocked from the locked position. Position displacement, in the state where the lock block is in the locked position and the lock is engaged with the block, the lock is not allowed to be separated from the block, the safety helmet is not allowed to be removed, and the lock block is released from the locked position to unlock In the position state, the block is separated from the lock, allowing the helmet to be removed.

The present invention provides another helmet lock that is mounted on a hood of a locomotive, wherein the helmet lock includes a lock and a buckle, and the buckle is mounted on a fastening strap of the helmet, the lock The lock can be operated in an unlocked state or in a locked state, and the buckle can be locked into the lock and locked. When the lock is locked by the lock and the lock is locked, the lock is not allowed to be separated from the lock, and the helmet cannot be Take away, in the state where the lock is operated to be unlocked, the lock is allowed to be separated from the lock, and the helmet can be taken away.

The invention cooperates with a lock mounted on the helmet of the locomotive to provide a lock function of the helmet, which can effectively reduce the theft rate of the helmet.

The invention will be more clearly understood from the following detailed description of exemplary embodiments of the invention.

According to the drawings, the helmet lock of the present invention includes a lock 10 coupled to a casing 12A of a locomotive 12 and a latch 115 coupled to a helmet 14 and lockable by the lock (e.g., 6, 7), wherein the lock 10 includes a seat body 20 that includes a separate first portion 22 and a second portion 42 (shown in Figure 2) that is separate from the first portion 22, wherein The first portion 22 includes a front end face 24 and a rear end face 26 that are spaced apart from each other. The first portion 22 further includes an upper end face 28 extending between the front and rear end faces 24, 26 and spaced apart from each other in parallel with the upper end face 28. The lower end face 30 and an inner end face 31 between the front and rear end faces 24, 26 and the upper and lower end faces 28, 30, the first portion 22 further comprising a lower end face 28 formed between the front and rear end faces 24, 26 a buffering groove 34, and an inlet 32 extending from the front end surface 24 to the buffering groove 34, the first portion 22 is also a cavity 36 formed in the upper end surface 28, a notch 38, and a pivot hole 40 formed in the bottom surface of the notch 38. The cavity 36 is substantially perpendicular to the buffer groove 34 and communicates with the buffer groove 34. The notch 38 is located between the buffer groove 34 and the receiving groove 36.

The second portion 42 includes a front surface 44 and a rear surface 46 that are spaced apart from each other in parallel. The second portion 42 further includes an upper surface 48 and an upper surface 48 extending between the front and rear surfaces 44, 46. In parallel with the lower surface 50, the second portion 42 in turn includes an inner surface 52 between the front and rear surfaces 44, 46 and the upper and lower surfaces 48, 50 and an outer surface spaced parallel to the inner surface 52. 54. The second portion 42 also includes a locking groove 56 extending from the front surface 44 to the rear surface 46 but spaced from the rear surface 46, the locking groove 56 extending to the outer surface 54, the locking groove 56 defining an inner and outer surface A bottom surface 58 between 52 and 54, the second portion 42 includes four chambers 60 formed in the bottom surface 58 and a recess 55 formed in the upper surface 48 and in communication with the locking groove 56.

The inner surface 52 of the second portion 42 of the seat 20 abuts against the inner end surface 31 of the first portion 22 (as shown in Fig. 4), and the upper surface 48 of the second portion 42 is flush with the upper end surface 28 of the first portion 22. High, the groove 55 of the second portion 42 is aligned with the notch 38 of the first portion 22, and the inlet 32 of the first portion 22 is aligned with the locking groove 56 of the second portion 42.

According to the drawings, the lock 10 of the present invention further includes a buffer block 62 slidably received in the buffer groove 34 of the base body 20 and a buffer spring 64 that allows the buffer block 34 to be advanced along the buffer groove 34. (as shown in Fig. 4) and a retracted position (as shown in Figs. 8 and 9), the buffer spring 64 is located between the buffer block 62 and the end wall of the buffer groove 34, so that the buffer spring 64 will buffer the block. 62 is offset in the forward position (as shown in Figure 4).

The lock 10 of the present invention also includes a block 66 received in the pocket 36. The block 66 includes a projection 70 formed on the upper surface, the block 66 further including a pressing surface 68 formed at an inclined end. The block 66 is allowed to be displaced along the pocket 36 between an engaged position (as shown in FIGS. 8-10) and a release position (as shown in FIG. 11), and when the block 66 is in the engaged position In the state, the pressing surface 68 of the block 66 is located in the buffer groove 34 (as shown in Fig. 4).

The lock 10 of the present invention further includes a lock block 82 movably received within the lock groove 56 of the base body 20. The lock block 82 includes an outer end 82A and an inner end 82B, and between the outer and inner ends 82A, 82B. An upper side 84 and a contact surface 86 extending perpendicular to each other, the locking block 82 defines an open slot 90, the contact surface 86 includes a plurality of recesses 88 corresponding to the respective chambers 60, the lock block 82 further including the formation A dial portion 92 on the upper side 84.

The contact surface 86 of the lock block 82 abuts against the bottom surface 54 of the lock groove 56 (as shown in FIG. 4), the dial portion 92 of the lock block 82 is received in the groove 55, and the lock block 82 can be along the lock groove 56. In a locked position (as shown in Figures 4, 5, 8-10) and an unlocked position (as in Figure 11) Between the displacements, the length of the groove 55 in the direction in which the lock block 82 is displaced from the locked position to the unlocked position is slightly larger than the distance at which the lock block 82 is displaced from the locked position to the unlocked position, and further the lock block 82 and the second A drive spring 94 is disposed between the end faces of the lock grooves 56 of the portion 42. The drive spring 94 biases the lock block 82 in the locked position. When the lock block 82 is in the locked position, each of the lock blocks 82 is fitted. 88 is aligned with each of the chambers 60 of the base 20.

Each of the chambers 60 respectively accommodates a magnetic block 89 and a spring 91. The springs 91 are respectively located between the corresponding magnetic block 89 and the bottom wall of the chamber 60, and the springs 91 are biased toward the direction of the lock block 82. Magnetic card block 89.

According to the drawings, the lock 10 of the present invention also includes a linkage block 72 pivotally connected to the base 20. The linkage block 72 includes a first end 74 and a second end 76 spaced from the first end 74. The block 72 further includes a pivot portion 78 between the first and second ends 74, 76. The linkage block 72 further includes a linkage groove 80 formed in the second end 76.

The lock 10 is further required to be operated by a lock state corresponding to a key 175 which is a magnetic key internally provided with a plurality of magnetic pins 177 aligned with the respective magnetic blocks 89 but opposite in polarity. When the key 175 is inserted into the slot 90 of the lock block 82 by the key hole 113, the magnetic pins 177 are compressed by the respective magnetic springs 89 into the respective chambers 60 due to the magnetic repulsive action. 10 is shown) further permitting the use of the key 175 to push the lock block 82 from the locked position to the unlocked position.

The interlocking block 72 is received in the notch 38. The pivoting portion 78 of the linking block 72 is pivotally connected to the pivot hole 40. The first end 74 of the linking block 72 is received in the recess 55 of the second portion 42 and abuts against On the toggle portion 92 of the lock block 82, the second end 76 of the linkage block 72 is located above the block 66, and the linkage groove 80 of the linkage block 72 is slidably coupled with the protrusion 70 of the block 66 (Fig. 4) As shown, when the lock block 82 is pivoted from the locked position (as shown in FIG. 4) to the unlocked position (as shown in FIG. 11), the linkage block 72 is pivoted, and the interlocking block 66 is further displaced. In addition, a torsion spring 81 is disposed between the linkage block 72 and the pivot hole 40 of the base body 20. One end of the torsion spring 81 is engaged with the linkage block 72, and the other end is engaged with the first portion 22 of the base body 20, thereby causing a torsion spring 81. The bias linkage block 72 biases the lock block 82 in the locked position.

According to the drawings, the lock 10 of the present invention further includes a housing 96 mounted on the outside of the base 20. The housing 96 includes an accommodation space 98. The housing 96 further includes a locking hole 111 extending from the outer surface to the receiving space 98. With a keyhole 113. The seat body 20 is received in the accommodating space 98 of the outer casing 96, and the lock hole 111 is aligned with the inlet 32 of the first portion 22, and the key hole 113 is aligned with the groove chamber 90 of the lock block 82 (as shown in FIG. 5). .

As shown in FIG. 3, the latch 115 includes a body 117. The body 117 includes a latching end 119 and a clamping end 131 spaced apart from the latching end 119. The body 117 further includes a latching end 119. An intermediate portion 133 between the clamping ends 131, the engaging end 119 has substantially the same cross-sectional shape as the locking hole 111 of the outer casing 96, and the body 117 includes an engaging hole 135 formed on the engaging end 119. The body 117 further includes two side walls 137 formed on both sides of the intermediate section 133 and spaced apart from each other, each side wall 137 includes a first coupling hole 139 and a second coupling hole 151, and the clamping end 131 includes A plurality of teeth 131A on the surface.

The latch 115 further includes an elastic pressing member 153 pivotally connected to the body 117 and a clamping member 159, wherein the clamping member 159 includes two pivot portions 171 formed on two sides of the symmetry, and is formed under A pressing portion 173 of the surface, the clamping member 159 is received between the two side walls 137, and each of the pivot portions 171 is pivotally connected to the first coupling hole 139 of each side wall 137, and the clamping member 159 allows the opposite body 117. Displacement between a clamping position (as shown in Figure 8) and a non-clamping position (as shown in Figure 3A).

The elastic pressing member 153 is formed by a metal stepped sheet 153. The elastic pressing member 153 includes a pressing end 155 and a coupling end 157. The elastic pressing member 153 is received between the clamping member 159 and the body 117. The coupling end 157 of the elastic pressing member 153 is pivotally coupled with the second coupling hole 151 of each side wall 137, and the pressing end 155 of the elastic pressing member 153 is adjacent to the clamping end 131 of the body 117, the holding member 159 The pressing portion 173 faces the elastic pressing member 153.

The buckle 115 is for mounting on the fastening strap 14A of the safety helmet 14. As shown in Figures 3 and 6B, the fastening strap 14A refers to a strap provided with a buckle 14B at the end, the buckle 14B It is used to engage with a buckle 14C that is coupled to the helmet 14, such that the tie belt 14A can bypass the user's chin and the helmet 14 does not easily disengage from the user's head. When the buckle 115 of the present invention is installed, the buckle 14B and the brace 14D on the fastening tape 14A of the helmet 14 are first removed, and the clamping member 159 is further operated to the non-clamping position to cause elastic pressing. The member 153 is released (as shown in FIG. 3A). In such a state, the fastening tape 14A is passed between the elastic pressing member 153 and the body 117 (as shown in FIG. 6A), and the latch 115 is adjusted. After the position, the clamping member 159 is operated from the non-clamping position (as shown in FIG. 3A) to the clamping position (as shown in FIG. 8), so that the pressing portion 173 of the clamping member 159 compresses the elastic pressing member. 153 abuts against the clamping end 131 of the body 117, the further fastening strap 14A is clamped together with the plurality of teeth 131A of the body 117 by the elastic pressing member 153, so that the locking buckle 115 cannot be displaced relative to the fastening strap 14A, and finally the The brace 14D is secured to the buckle 14B mounting strap 14A (as shown in Figure 6B).

For convenience of explanation, it is assumed that the lock 10 of the present invention is mounted on the casing 12A of the steering faucet of the locomotive 12, so that the helmet 14 can be sleeved on a rear view mirror 12B of the locomotive 12, so that the lock 115 will be located relatively close. The position of the lock 10 (as shown in Fig. 6B), in which the buffer block 62 of the lock 10 is in the advanced position, the lock block 82 is in the locked position, and the ends of the magnetic blocks 89 are respectively on the lock block 82. The corresponding recessed groove 88 is fitted, so that the lock block 82 cannot be displaced from the locked position to the unlocked position, and the block 66 is located at the engaged position.

When the user wants to lock the helmet 14 , the engaging end 119 of the latch 115 is inserted into the buffer groove 34 from the locking hole 111 and the inlet 32 of the lock 10 and pushes the buffer block 62 to compress the buffer spring 64 from the forward position. When it is displaced to the retracted position, and when the engaging end 119 of the latch 115 presses against the pressing surface 68 of the latch 66, the latch 66 is pressed by the engaging end 119 of the latch 115 to be released from the engaging position. Displacement and driving the linkage block 72 torsion of the torsion spring 81 to pivot until the buffer block 62 is displaced to the retracted position, the engagement hole 135 of the latch 115 is aligned with the block 66, so that the linkage block 72 is acted upon by the torsion spring 81. The reset push block 66 is reset from the release position to the engaged position (as shown in Figs. 8, 9). In this state, since the lock block 82 is locked by the respective magnetic blocks 89, further in the state without the key 175 The lock block 82 cannot be operated to separate the lock 115 from the lock 10, and thus the helmet 14 cannot be used on the locomotive 12. Go, so the helmet 14 to achieve lock function on the 12 locomotives.

When the knight of the locomotive 12 wants to use the helmet 14, the correct key 175 is threaded into the slot 90 of the lock block 82 by the keyhole 113, and each of the magnetic blocks 89 is repelled by the magnetic pin 177 in the key 175. The compression springs 91 are displaced away from the corresponding recesses 88 (as shown in FIG. 10) such that the lock block 82 is unlocked, further allowing the push key 175 to cause the lock block 82 to compress the drive spring 94 from the locked position to the unlocked position, While the lock block 82 is displaced from the locked position to the unlocked position, the dial portion 92 of the lock block 82 pushes the first end 74 of the linkage block 72 to cause the linkage block 72 to pivot, and further the second end 76 of the linkage block 72 pushes the card Block 66 causes the block 66 to be displaced from the engaged position to the released position.

After the lock block 82 is displaced to the unlocked position (as shown in FIG. 11), the block 66 is in the release position, such that the block 66 is disengaged from the engaging hole 135 of the latch 115, and the buffer block 62 is biased by the buffer spring 64. The reset position is reset to the forward position, and the buffer block 62 pushes the lock 115 to be displaced from the block 66, thus allowing the lock 115 to be pulled out of the lock 10, allowing the removal of the helmet 14 to be worn. The head of the knight.

The present invention provides a locking function of the helmet 14 through the lock 10 mounted on the casing 12A of the locomotive 12, and the lock 115 mounted on the helmet 14 can effectively reduce the theft rate of the helmet 14.

The present invention achieves the function of replacing the second portion 42 by designing the base 20 to be independent of the first and second portions 22, 42 so as to replace the second portion of the chamber 60 by a different position. The replacement of the lock block 82 can provide a variety of different arrangement and arrangement of the magnetic blocks 89, and further can be equipped with a variety of different keys 175, which can further improve the anti-theft effect of the lock 10.

The buckle 115 of the present invention can be directly mounted on the fastening strap of the old helmet, that is, the lock 115 of the present invention can be directly installed without replacing the helmet or modifying the helmet structure. The lock 10 on the helmet provides an anti-theft function that prevents the helmet from being stolen.

The lock pin 115 of the present invention can easily adjust the position of the buckle 115 relative to the fastening band 14A of the helmet 14 in the non-clamping position by operating the clamp member 159, and operate the clamp member 159 after being adjusted to an appropriate position. To the clamping position, the position of the buckle 115 relative to the fastening band 14A can be fixed, which is very convenient to use.

The basic teachings of the present invention have been described, and many extensions and variations will be apparent to those of ordinary skill in the art. For example, the first and second portions 22, 42 of the base 20 can be designed to be integrally formed, in which case the technical features of the present invention are not affected, and most of the effects of the present invention are achieved, and It is a simple change that can be easily accomplished by those of ordinary skill in the art and is within the scope of protection of the present invention. Alternatively, the lock 10 of the present invention is not only mountable on the car body 12A at the steering faucet of the locomotive 12, and the lock 10 of the present invention can also be mounted on the car body 12A at other places of the locomotive 12, with respect to the lock 10 installed. The position is as long as it is advantageous for the position where the helmet 14 is placed. Alternatively, the lock block 82 of the present invention may be a commercially available but not limited to a commercially available key cylinder, and the key 175 is a metal key that cooperates with the lock cylinder device. Alternatively, the lock 10 of the present invention may be designed not to cooperate with the buckle 115 of the present invention. For example, the lock hole 111 of the lock 10 and the buffer groove 34 are designed to be substantially larger than the buckle 14B of the safety cap 14, such that The buckle 14B can be an alternative to the buckle 115 of the present invention. When the buckle 14B is locked by the lock 10, the anti-theft effect that the helmet 14 can not be removed can also be achieved, which can be achieved by simple dimensional change. Efficacy should fall within the scope of the present invention.

The present invention disclosed in the specification is intended to be illustrative and not restrictive. The scope of the present invention is defined by the scope of the appended claims, and is not intended to

10‧‧‧Locks

12‧‧‧Motorcycle

12A‧‧‧ car shell

12B‧‧‧ rearview mirror

14‧‧‧Safety helmet

14A‧‧‧ fastening belt

14B‧‧‧ buckle

14C‧‧‧ buckle

14D‧‧‧ Protective gear

20‧‧‧ body

22‧‧‧Part 1

24‧‧‧ front end

26‧‧‧ rear end face

28‧‧‧ upper end

30‧‧‧ lower end

31‧‧‧ inside end

32‧‧‧ Entrance

34‧‧‧buffer tank

36‧‧‧ 容容

38‧‧‧ Missing slot

40‧‧‧ pivot hole

42‧‧‧Part II

44‧‧‧ front surface

46‧‧‧Back surface

48‧‧‧ upper surface

50‧‧‧ lower surface

52‧‧‧ inner surface

54‧‧‧ outer surface

55‧‧‧ Groove

56‧‧‧Lock slot

58‧‧‧ bottom

60‧‧ ‧ room

62‧‧‧buffer block

64‧‧‧buffer spring

66‧‧‧ card block

68‧‧‧Resistance surface

70‧‧‧

72‧‧‧ linkage block

74‧‧‧ first end

76‧‧‧ second end

78‧‧‧Band

80‧‧‧ linkage slot

81‧‧‧Torque spring

82‧‧‧Lock block

82A‧‧‧Outside

82B‧‧‧End

84‧‧‧ upper side

86‧‧‧Contact surface

88‧‧‧Inlay

89‧‧‧Magnetic block

90‧‧‧slot chamber

91‧‧‧ Spring

92‧‧‧Trading Department

94‧‧‧ drive spring

96‧‧‧Shell

98‧‧‧ accommodating space

111‧‧‧Keyhole

113‧‧‧ keyhole

115‧‧‧Lock

117‧‧‧ body

119‧‧‧Card end

131‧‧‧Clamping end

131A‧‧‧ teeth

133‧‧‧ middle section

135‧‧ ‧ snap hole

137‧‧‧ side wall

139‧‧‧ first joint hole

151‧‧‧Second junction hole

153‧‧‧Flexible pressing parts

155‧‧‧Resistance end

157‧‧‧Binding end

159‧‧‧Clamping parts

171‧‧‧Band

173‧‧‧Resistance Department

175‧‧‧ key

177‧‧‧Magnetic pin

Figure 1 is a perspective assembled view of the helmet lock of the present invention.

Figure 2 is an exploded perspective view of the lock of the helmet lock of the present invention.

Figure 3 is an exploded perspective view of the lock of the helmet lock of the present invention.

Figure 3A is a cross-sectional view of the combination of the buckles.

Figure 4 is a cross-sectional view taken along line 4-4 of Figure 1.

Figure 5 is a cross-sectional view taken along line 5-5 of Figure 1.

Figure 6A is a perspective view showing the lock of the helmet lock of the present invention mounted on the locomotive and the lock being mounted on the helmet.

Figure 6B is a perspective view showing the lock of the helmet lock of the present invention completely mounted on the helmet.

Figure 7 is a diagram showing the state in which the lock cannot be removed after the lock is locked by the lock.

Figure 8 is a cross-sectional view taken along line 8-8 of Figure 7.

Figure 9 is a cross-sectional view taken along line 9-9 of Figure 7.

Figure 10 is a state diagram of a chamber in which a key is inserted into a lock block.

Figure 11 is a state diagram of the use of a key to push the lock block from the locked position to the unlocked position.

The drawings are merely for the purpose of explaining the basic teachings, and the description of the number, the position, the relationship, and the size of the components of the embodiments will be explained or the technical skills will be read after reading and understanding the following description. In addition, after reading and understanding the following descriptions, changes in the exact dimensions and size ratios associated with specific forces, weights, strengths, and similar requirements are also industry skills.

In the different figures, the same reference numerals are used to designate the same or similar elements. In addition, please refer to the text such as "first", "second", "front", "back", "end", "side", etc. and the like. The language is only convenient for the viewer to refer to the construction in the drawings and is only used to assist in the description of the embodiments.

10‧‧‧Locks

20‧‧‧ body

22‧‧‧Part 1

24‧‧‧ front end

26‧‧‧ rear end face

28‧‧‧ upper end

30‧‧‧ lower end

31‧‧‧ inside end

32‧‧‧ Entrance

34‧‧‧buffer tank

36‧‧‧ 容容

38‧‧‧ Missing slot

40‧‧‧ pivot hole

42‧‧‧Part II

44‧‧‧ front surface

46‧‧‧Back surface

48‧‧‧ upper surface

50‧‧‧ lower surface

52‧‧‧ inner surface

54‧‧‧ outer surface

55‧‧‧ Groove

56‧‧‧Lock slot

58‧‧‧ bottom

60‧‧ ‧ room

62‧‧‧buffer block

64‧‧‧buffer spring

66‧‧‧ card block

68‧‧‧Resistance surface

70‧‧‧

72‧‧‧ linkage block

74‧‧‧ first end

76‧‧‧ second end

78‧‧‧Band

80‧‧‧ linkage slot

81‧‧‧Torque spring

82‧‧‧Lock block

82A‧‧‧Outside

82B‧‧‧End

84‧‧‧ upper side

86‧‧‧Contact surface

88‧‧‧Inlay

89‧‧‧Magnetic block

90‧‧‧slot chamber

91‧‧‧ Spring

92‧‧‧Trading Department

94‧‧‧ drive spring

96‧‧‧Shell

98‧‧‧ accommodating space

111‧‧‧Keyhole

113‧‧‧ keyhole

Claims (17)

A helmet lock includes: a body comprising a receiving slot and a locking slot, the base further comprising an inlet communicating with the receiving slot; a latching block displaceable between a latching position and a releasing position Positioned in the pocket; a lock block can be lockedly installed in the lock slot, the lock block is coupled with the block, and the lock block can be displaced between a locked position and an unlocked position when the lock block is not locked; The buckle comprises an engaging end, and the locking buckle is coupled to a fastening strap of a safety cap, the engaging end of the locking buckle is allowed to enter the receiving slot through the inlet and can be engaged with the clamping block; the locking block is located at the locking block In the locked position and locked state, the lock block is not allowed to be displaced from the locked position to the unlocked position, and in the state where the lock block is in the locked position and released, the lock block is allowed to be displaced from the locked position to the unlocked position, When the lock block is in the locked position and the lock is engaged with the block, the lock is not allowed to be separated from the block, and the helmet is not allowed to be removed, and the lock block is released from the locked position to the unlocked position. The block is separated from the lock, allowing the helmet to be removed. The helmet lock according to claim 1, wherein the lock groove of the base body comprises a bottom surface, and the bottom surface forms a cavity, the lock block further comprises a contact surface adjacent to the bottom surface, and a contact surface formed on the contact surface The recessed groove further includes: a magnetic block that is movably received in the lock groove along the axial direction of the lock groove; and a spring received in the chamber and biasing the magnetic block toward the lock block; a key, including a magnetic pin repelling the polarity of the magnetic block; in the state where the lock block is in the locked position and the key is not coupled to the lock block, the groove of the lock block is aligned with the cavity of the seat body, and the spring biases the magnetic block One end is engaged with the slot of the lock block, so that the lock block is locked. When the lock block is in the locked position and the key is combined with the lock block, the magnetic pin repels the compression of the magnetic block compression spring into the chamber, causing the magnetic card The block is separated from the slot of the lock block, allowing the lock block to be displaced from the locked position to the unlocked position. The helmet lock according to claim 1 or 2, wherein the seat body includes a buffer groove communicating with the receiving groove and the inlet, and further comprising: a buffer block which is movable along the buffer groove in an advanced position and a retracted position Displacement between; a buffer spring, accommodated in the buffer groove and the biasing buffer block is located at the forward position; in a state where the lock and the block are separated, the buffer block is located at the forward position, and the lock and the block are combined The buffer block is in the retracted position and the buffer spring is compressed. The helmet lock according to claim 3, wherein the seat body further comprises a notch, further comprising: a linkage block pivotally connected in the slot, the linkage block comprising a first end abutting against the lock block And a second end coupled with the card block; in the state that the lock block is in the locked position, the linkage block restricts the card block from being in the engaged position, and the lock block is displaced from the locked position to the unlocked position, and the linkage block The pushing block is displaced from the engaging position to the releasing position, and when the locking block is in the locked position, the buffer block is restricted by the linking block in the releasing position. The helmet lock according to claim 4, wherein the seat body further comprises a groove communicating with the lock groove, the lock block includes a dial portion received in the groove, and the first end of the link block abuts The second end of the linkage block includes a linkage groove, and the block includes a protrusion slidably received in the linkage groove. The helmet lock according to claim 2, wherein the seat body comprises a separate first portion and a second portion assembled on one side of the first portion, the pocket and the inlet being formed in the first portion, the lock groove and The chamber is formed in the second portion. The hard hat lock of claim 1, wherein the lock comprises: a body comprising an engaging end and a clamping end, the body further comprising a middle section between the engaging end and the clamping end The body further includes two side walls formed at the intermediate section and spaced apart from each other; a clamping member is pivoted between the two side walls of the body and spaced apart from the intermediate portion, the clamping member includes a pressing portion for clamping The member is pivotable between a clamping position and a non-clamping position; and an elastic pressing member is pivoted between the two side walls of the body and between the clamping member and the intermediate portion, the elastic pressing member Including a pressing end of the clamping end, the fastening strap of the safety helmet passes between the elastic pressing member and the body; in the state where the clamping member is in the non-clamping position, the pressing portion and the elastic pressing force The piece is separated, and the elastic pressing member and the clamping end do not clamp the fastening tape. When the clamping member is in the clamping position, the pressing portion presses the elastic pressing member, and the pressing end of the elastic pressing member cooperates with the clamping member. Hold the fastening strap at the end. The helmet lock according to claim 7, wherein the clamping end of the body is provided with a plurality of teeth toward a surface of the elastic pressing member. The hard hat lock according to claim 7, wherein the body includes an engaging hole formed at the engaging end; and the engaging block is engaged with the engaging hole of the body in a state where the blocking block is in the engaged position The lock can not be disengaged from the lock. When the block is in the release position, the block is separated from the engaging hole of the body, so that the lock can be disengaged from the lock. The helmet cap according to claim 1, wherein the seat system is fixed on a casing of a steering faucet of the locomotive, and the helmet is sleeved on the outer side of the locomotive having a rear view mirror; When the lock is locked, the helmet is not allowed to be removed from the mirror, and the helmet is allowed to be removed from the mirror when the lock is not locked by the lock. A helmet lock is mounted on a casing of a locomotive, wherein the helmet lock comprises a lock and a buckle, wherein the lock comprises a block that is displaceable between the engaged position and the released position, the lock Further comprising a lock block that can be locked and a key that can unlock the lock block, the lock block is coupled with the block block, the lock block includes a slot chamber, and the lock block is displaceable between a locked position and an unlocked position, The locking buckle is mounted on a safety helmet. In a state where the key is not combined with the slot chamber of the locking block, the locking block is locked in the locking position, the clamping block is located at the locking position, and the locking buckle can be inserted into the locking device to be stuck. The block is locked, and the lock is operated in a locked state. In a state in which the lock block is unlocked in a state in which the key is coupled with the slot of the lock block, the operation lock block is allowed to be displaced from the locked position to the unlocked position, and the lock block is unlocked. In the position state, the card block is in the release position to unlock the lock. The lock according to claim 11, wherein the lock further comprises: a pivotable linkage block, the linkage block comprising a first end coupled to the lock block and a second end coupled to the block; When the lock block is displaced from the locked position to the unlocked position, the interlocking block pushes the block to be displaced from the engaged position to the released position. The helmet lock according to claim 12, wherein the seat body further comprises a groove communicating with the lock groove, the lock block includes a dial portion received in the groove, and the first end of the link block is abutted The second end of the linkage block includes a linkage groove, and the block includes a protrusion slidably received in the linkage groove. The helmet lock according to claim 11, wherein the buckle is mounted on a fastening strap of the helmet, the buckle comprises: a body comprising a latching end and a clamping end, the body further The utility model comprises an intermediate section between the engaging end and the clamping end, the body further comprises two side walls formed at the intermediate section and spaced apart from each other; a clamping member is pivoted between the two side walls of the body and intermediate Separating the segments, the clamping member includes a pressing portion, the clamping member is pivotable between a clamping position and a non-clamping position; and an elastic pressing member is pivoted between the two side walls of the body And located between the clamping member and the intermediate portion, the elastic pressing member includes a pressing end that engages the clamping end, the fastening strap of the safety helmet passes between the elastic pressing member and the body; In the non-clamping position, the pressing portion is separated from the elastic pressing member, and the elastic pressing member and the clamping end do not clamp the fastening band, and the pressing portion is pressed in a state where the clamping member is in the clamping position. The elastic pressing member, the pressing end of the elastic pressing member is engaged with the clamping end to clamp the fastening tape. The helmet lock according to claim 13, wherein the clamping end of the lock body is provided with a plurality of teeth toward a surface of the elastic pressing member. The helmet lock according to claim 14, wherein the body comprises an engaging hole formed at the engaging end; and the engaging block is engaged with the engaging hole of the body in a state where the blocking block is in the engaging position; , causing the lock to fail When the card is in the release position, the card block is separated from the engaging hole of the body, so that the buckle can be disengaged from the lock. The helmet lock of claim 13, wherein the lock is mounted on a casing of the steering faucet of the locomotive and is adjacent to a rear view mirror of the locomotive, and the helmet can be set in the backlight The outside of the mirror, thus allowing the lock to be mounted on one of the fastening straps of the helmet to be locked by the lock, the helmet cannot be removed from the mirror, and the helmet is allowed in a state where the lock is not locked by the lock It was taken from the rear view mirror.