CN212065884U

CN212065884U - Safety belt lock catch with switch

Info

Publication number: CN212065884U
Application number: CN202020722448.5U
Authority: CN
Inventors: 胡晏殊; 吴明伟; 王传旭; 王雅卓; 郭龙
Original assignee: Shenyang Jinbei Jinheng Automotive Safety System Co ltd
Current assignee: Shenyang Jinbei Jinheng Automotive Safety System Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-12-04
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a safety belt lock catch with a switch, which comprises a lock core assembly, an upper cover shell and a lower cover shell, wherein the upper cover shell and the lower cover shell are respectively positioned above and below the lock core assembly and can form a cover body outside the lock core assembly after being mutually clamped, the lower cover shell is internally provided with a switch assembly with a Hall detection element, and the lock core assembly is provided with a magnet assembly; after the safety belt lock tongue is inserted into the lock core component, the magnet component is driven to do reciprocating motion. Has the advantages that: after the lock tongue is inserted into the lock core assembly, the misinformation of a locking state is reduced, and the accuracy of signal transmission of safety belt unlocking and locking states, namely a state that a passenger does not wear a safety belt and a state that the passenger wears the safety belt, is improved; through installing switch module in the lower housing, can make its and lock core subassembly separation to can prevent that lock core subassembly inner structure from causing the influence to it when the spring bolt drives down the action, thereby make switch module's mounting structure more stable.

Description

Safety belt lock catch with switch

Technical Field

The utility model relates to a safety belt hasp technical field, concretely relates to safety belt hasp with switch.

Background

The safety belt can effectively reduce the damage of the collision to passengers when the automobile collides, so the safety belt is required to be arranged in mass production of automobile types. In the lock catch type safety belt, through locking and unlocking the lock tongue, a person wears the safety belt and does not wear the safety belt. The locking device needs to have sound and light reminding functions to play a role in reminding people to wear the safety belt.

The existing lock catch has the function of judging the locking and unlocking of the lock tongue, the principle is that different positions of the ejection piece are acted on a mechanical switch, signals are generated and output to a whole vehicle control system through the connection and disconnection of the switch, and the whole vehicle system outputs sound and light prompts according to the set logic. The mechanical switch can only provide identification of the open circuit and the closed circuit, and the open circuit and the closed circuit which have faults of a fault loop cannot be identified, so that false alarm is caused. For the above reasons, the applicant proposes a latch structure that can stabilize output signals and has a low false alarm rate.

Disclosure of Invention

The utility model aims at providing a take safety belt hasp of switch just in order to solve above-mentioned problem, the utility model provides an among a great deal of technical scheme preferred technical scheme have: the safety belt state signal output is stable, the false alarm rate is low, and the like, and the technical effects are described in detail below.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a take safety belt hasp of switch, including lock core subassembly, upper shield shell and lower housing, the upper shield shell with the lower housing is located respectively the top and below of lock core subassembly, and can form the cover body in the lock core subassembly outside after mutual joint, install the switch module that has hall detecting element in the lower housing, the lock core subassembly is installed the magnet subassembly; the safety belt spring bolt inserts inside back of lock core subassembly, drives magnet subassembly is reciprocating motion to reach the locking position when the spring bolt inserts lock core subassembly is innermost, magnet subassembly when moving to the locking position with hall detecting element on the switch module is just right.

Preferably, the lock core assembly comprises a groove-shaped seat, a buckling and locking functional piece is arranged inside the groove-shaped seat, an ejecting piece matched with the magnet assembly is arranged on the groove-shaped seat, one end of the ejecting piece extends out of the side face of the groove-shaped seat, and the ejecting piece can move back and forth in the groove-shaped seat along with the plugging and unplugging of the lock bolt.

Preferably, the magnet assembly comprises a magnet bracket and a magnet, and the magnet is in clamping fit with the magnet bracket through an elastic piece; the magnet support inboard is provided with the holding chamber of holding magnet, hold chamber one side opening, magnet inserts through this opening hold the intracavity back, the elastic component forms elasticity at the opening part and shelters from.

Preferably, the magnet support is provided with an elastic buckle, a D-shaped groove matched with the elastic buckle is formed in the ejection piece, and the elastic buckle is in clamping fit with the D-shaped groove.

Preferably, the openings may be provided at the top and sides of the magnet holder.

Preferably, the switch component comprises a PCBA and a switch chip, the switch chip is a Hall switch, and the PCBA is connected with the automobile system through a wire.

Preferably, the PCBA is of a long strip-shaped structure, and the length direction of the PCBA is consistent with the movement direction of the magnet assembly; the both ends of PCBA shaping respectively have guide post and fixed buckle.

Preferably, a square hole matched with the guide post is formed in the lower housing, and the guide post is inserted into the square hole and then fixes one end of the PCBA; the inside shaping of lower housing has the matching the card of fixed buckle is gone into the structure, go into the structure with fixed buckle joint after-fixing PCBA's the other end.

To sum up, the utility model has the advantages that: 1. after the lock tongue is inserted into the lock core assembly, the magnet assembly is driven by the ejection piece to move to a state opposite to the chip, and then the lock tongue can be judged to be in a locking state, and the magnet assembly and the chip are in a non-locking state when in a non-opposite state, so that the misinformation of the locking state is reduced, and the accuracy of signal transmission of the unlocking and locking states of the safety belt, namely the state of the safety belt which is not worn by a passenger and the state of the safety belt which is worn by the passenger, is improved;

2. through installing switch module in the lower housing, can make its and lock core subassembly separation to can prevent that lock core subassembly inner structure from causing the influence to it when the spring bolt drives down the action, thereby make switch module's mounting structure more stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic structural view of the lock cylinder assembly of the present invention;

fig. 3 is an exploded view of the magnet assembly of the present invention;

fig. 4 is a schematic structural view of the switch assembly of the present invention;

fig. 5 is a schematic view of an assembly structure of the magnet assembly and the lock cylinder assembly of the present invention;

FIG. 6 is a schematic bottom view of the magnet assembly of FIG. 5;

fig. 7 is a schematic view of an assembly structure of the switch assembly and the lower housing of the present invention;

fig. 8 is a schematic structural view of the unlocked state of the present invention;

fig. 9 is a schematic structural view of the locking state of the present invention;

fig. 10 is a schematic structural view of a first embodiment of the magnet assembly of the present invention;

fig. 11 is a schematic structural view of a second embodiment of the magnet assembly of the present invention;

fig. 12 is a schematic structural view of a third embodiment of the magnet assembly of the present invention.

The reference numerals are explained below:

1. a plug assembly; 11. a trough-shaped seat; 12. a pop-up member; 12a and a D-shaped groove; 2. an upper housing; 3. a lower housing shell; 3a, a square hole; 3b, fixing a buckle; 4. a magnet assembly; 41. a magnet; 42. a magnet holder; 42a, an elastic buckle; 5. a switch assembly; 51. PCBA; 51a, a guide post; 51b, a snap-in structure; 52. a switch chip; 6. and a lock tongue.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be described in further detail with reference to fig. 1 to 9.

Referring to fig. 1, the utility model provides a safety belt lock with switch, which comprises a lock cylinder assembly 1, an upper cover shell 2 and a lower cover shell 3, wherein the upper cover shell 2 and the lower cover shell 3 are respectively positioned above and below the lock cylinder assembly 1, and can be mutually clamped to form a cover body outside the lock cylinder assembly 1, a switch assembly 5 with a hall detection element is installed in the lower cover shell 3, and a magnet assembly 4 is installed on the lock cylinder assembly 1; safety belt spring bolt 6 inserts 1 inside backs of lock core subassembly, drives magnet subassembly 4 and is reciprocating motion to reach the locking position when 6 inserts 1 innermost sides of lock core subassemblies, magnet subassembly 4 just right with the hall detecting element on the switch module 5 when moving to the locking position. The magnet assembly 4 is driven to move when the bolt 6 is plugged and pulled out, when the bolt is driven to move to a locking position, the magnet assembly 4 is over against the Hall detection element, and the Hall detection element outputs high current, so that the locking state of the safety belt lock catch can be judged; on the contrary, if the magnet assembly 4 is not directly opposite to the hall detection element, the hall detection element outputs a low current, which is the unlocked state of the safety belt lock catch.

As shown in fig. 2, the cylinder assembly 1 includes a slot-shaped seat 11, a locking function member is disposed inside the slot-shaped seat 11, an eject member 12 cooperating with the magnet assembly 4 is disposed on the slot-shaped seat 11, one end of the eject member 12 extends out of the side surface of the slot-shaped seat 11, and the eject member 12 can reciprocate in the slot-shaped seat 11 along with the insertion and extraction of the latch 6; the main body of the ejection piece 12 is positioned in the groove-shaped seat 11, one end of the ejection piece extends out of the groove-shaped seat 11, and the end of the ejection piece is in clamping fit with the magnet assembly 4, so that the magnet assembly 4 is driven to move in the process that the spring bolt 6 drives the ejection piece 12 to move;

as shown in fig. 3, the magnet assembly 4 includes a magnet holder 42 and a magnet 41, and the magnet 41 is snap-fitted with the magnet holder 42 through an elastic member; an accommodating cavity for accommodating the magnet 41 is formed in the inner side of the magnet support 42, an opening is formed in one side of the accommodating cavity, and after the magnet 41 is inserted into the accommodating cavity through the opening, an elastic piece forms elastic shielding at the opening; openings may be provided at the top and side of the magnet holder 42, as shown in fig. 10 to 12, in the form that two openings are provided at the side of the magnet holder 42 and one opening is directed upward, respectively;

as shown in fig. 5, the magnet holder 42 is provided with an elastic buckle 42a, a D-shaped groove 12a matching the elastic buckle 42a is formed on the ejection member 12, the elastic buckle 42a is in clamping fit with the D-shaped groove 12a, as shown in fig. 6, the elastic buckle 42a is respectively clamped at two ends of the D-shaped groove 12a, so that the magnet 41 and the ejection member 12 directly form a stable connection structure;

as shown in fig. 4, the switch assembly 5 comprises a PCBA51 and a switch chip 52, the switch chip 52 is a hall switch, and the PCBA51 is connected with the automobile system through a wire; the PCBA51 is a long strip-shaped structure, and the length direction of the PCBA51 is consistent with the movement direction of the magnet assembly 4; the two ends of the PCBA51 are respectively formed with a guide post 51a and a fixed buckle 3 b;

as shown in fig. 7, a square hole 3a matching with the guide post 51a is formed in the lower housing 3, and the guide post 51a is inserted into the square hole 3a to fix one end of the PCBA 51; a clamping structure 51b matched with the fixed buckle 3b is formed in the lower housing 3, and the clamping structure 51b is clamped with the fixed buckle 3b to fix the other end of the PCBA 51; through fixing the two ends of the PCBA51 in the lower housing 3, the PCBA51 can be separated from the lock cylinder component 1, the structure on the PCBA51 is prevented from being damaged when the internal structure of the lock cylinder component 1 moves, and therefore the stability of the PCBA51 is improved; meanwhile, when the structure has a fault, the PCBA51 can be overhauled only by disassembling the lower housing 3, so that the overhauling convenience and efficiency are improved;

with the above structure, as shown in fig. 8, the state is an unlocked state of the seat belt buckle, at this time, the magnet assembly 4 is driven by the ejector 12 to be located at the farthest point from the hall switch, the magnet 41 and the hall switch are in a non-opposite state, at this time, the hall switch outputs a low current to the loop, and the system determines that the seat belt buckle is in the unlocked state;

as shown in fig. 9, the latch 6 is inserted into the latch assembly 1 and is in a locked state of the seat belt buckle, at this time, the magnet assembly 4 is driven by the ejector 12 and is in a state of being opposite to the hall switch, at this time, the hall switch outputs a high current, and the system determines that the seat belt buckle is in the locked state.

After the bolt 6 is inserted into the bolt assembly 1, the magnet assembly 4 is driven by the ejection piece 12 to move to a state opposite to the chip, and then the bolt 6 can be judged to be in a locking state, and the magnet assembly 4 and the chip are in a non-locking state when being in a non-opposite state, so that the misinformation of the locking state is reduced, and the accuracy of signal transmission of safety belt unlocking and locking states, namely a state that a passenger does not wear a safety belt and a state that the passenger wears the safety belt, is improved; through installing switch module 5 in encloser 3 down, can make its and the separation of lock core subassembly 1 to can prevent that 1 inner structure of lock core subassembly from causing the influence to it when the action under the spring bolt 6 drives, thereby make switch module 5's mounting structure more stable.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The safety belt lock catch with the switch is characterized by comprising a lock cylinder assembly (1), an upper cover shell (2) and a lower cover shell (3), wherein the upper cover shell (2) and the lower cover shell (3) are respectively positioned above and below the lock cylinder assembly (1) and can be mutually clamped to form a cover body on the outer side of the lock cylinder assembly (1), a switch assembly (5) with a Hall detection element is installed in the lower cover shell (3), and a magnet assembly (4) is installed on the lock cylinder assembly (1); safety belt spring bolt (6) insert inside back of lock core subassembly (1), drive magnet subassembly (4) are reciprocating motion to insert at spring bolt (6) reach the locking position when lock core subassembly (1) is the innermost, magnet subassembly (4) when moving to the locking position with hall detecting element on switch module (5) is just right.

2. The seatbelt buckle with switch as claimed in claim 1, wherein: the lock core assembly (1) comprises a groove type seat (11), a buckling lock function piece is arranged inside the groove type seat (11), a matching part is arranged on the groove type seat (11), an ejecting piece (12) of the magnet assembly (4) extends out of one end of the ejecting piece (12) to the side of the groove type seat (11), and the ejecting piece (12) can move back and forth along with the insertion and extraction of a lock tongue (6) in the groove type seat (11).

3. The seatbelt buckle with switch as claimed in claim 2, wherein: the magnet assembly (4) comprises a magnet support (42) and a magnet (41), and the magnet (41) is in clamping fit with the magnet support (42) through an elastic piece; magnet support (42) inboard is provided with the holding chamber of holding magnet (41), holding chamber one side opening, magnet (41) insert through this opening hold the intracavity back, the elastic component forms elasticity at the opening part and shelters from.

4. The seatbelt buckle with switch as claimed in claim 3, wherein: be provided with elasticity buckle (42 a) on magnet holder (42), the shaping has D type groove (12 a) of matching this elasticity buckle (42 a) on pop-up piece (12), elasticity buckle (42 a) with D type groove (12 a) joint cooperation.

5. The seatbelt buckle with switch as claimed in claim 4, wherein: the openings may be provided at the top and sides of the magnet holder (42).

6. The seatbelt buckle with switch as claimed in claim 1, wherein: the switch component (5) comprises a PCBA (51) and a switch chip (52), the switch chip (52) is a Hall switch, and the PCBA (51) is connected with an automobile system through a wire.

7. The seatbelt buckle with switch as claimed in claim 6, wherein: the PCBA (51) is of a long strip-shaped structure, and the length direction of the PCBA is consistent with the movement direction of the magnet assembly (4); and guide posts (51 a) and fixing buckles (3 b) are respectively formed at two ends of the PCBA (51).

8. The seatbelt buckle with switch as claimed in claim 7, wherein: a square hole (3 a) matched with the guide post (51 a) is formed in the lower housing (3), and the guide post (51 a) is inserted into the square hole (3 a) to fix one end of the PCBA (51); lower housing (3) inside shaping has the matching structure (51 b) is gone into to the card of fixed buckle (3 b), go into structure (51 b) with fixed buckle (3 b) joint back is fixed PCBA (51) the other end.