CN213473060U

CN213473060U - Force-limiting mortise lock

Info

Publication number: CN213473060U
Application number: CN202022215258.7U
Authority: CN
Inventors: 苑震北
Original assignee: Wuhan Fuweite Auto Parts Co ltd
Current assignee: Wuhan Fuweite Auto Parts Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-18
Anticipated expiration: 2030-09-29

Abstract

The utility model provides a force-limiting mortise lock, which relates to the technical field of a safety belt mortise lock locking mechanism and comprises a mortise lock device and a safety belt, wherein the surface of the safety belt is provided with a first limiting frame and a second limiting frame, the safety belt penetrates through the first limiting frame and the second limiting frame, the bottom of the first limiting frame is fixedly provided with a first slot, the side surface of the first slot is provided with a first pin hole in a penetrating way, the surface of one end of the bottom surface inside the mortise lock device is provided with a pair of limiting arc grooves, one end of the mortise lock device, which is far away from the limiting arc grooves, is provided with a limiting shaft, the mortise lock device is internally matched with the first slot and the second slot in a buckling way, when the safety belt is locked and fixed, the slot and the second slot can be simultaneously fixed in the mortise lock device, meanwhile, the safety belt between the first slot and the second slot can be reserved and fixed in the mortise lock device through the limiting shaft, so that the safety belt can slowly slide, the safety belt is prevented from being over-tightened due to overlarge impact force to cause safety damage to a driver.

Description

Force-limiting mortise lock

Technical Field

The utility model relates to a safety belt mortise lock locking mechanical system technical field especially relates to a limit for strength type mortise lock.

Background

The automobile safety belt mortise lock is an important component of a safety belt, restrains a driver and passengers in case of collision, and prevents the human body from excessively moving and colliding with a steering wheel or an interior trim.

According to chinese patent number for CN209366090U discloses a limit power type mortise lock, including tapered end, connection rope and limit power subassembly, connect rope one end and tapered end and be connected, the other end is installed on the limit power subassembly, wherein, the limit power subassembly includes: the fixing plate is U-shaped, and two side plates are respectively provided with a through hole; the two ends of the rotating cylinder are respectively arranged in the two through holes, the inner wall of one end close to the lock head is provided with a tooth-shaped structure, the outer wall of the end is wound with a connecting rope, and the free end of the connecting rope is fixed on the cylinder wall; the force limiting rod is arranged in the rotary cylinder, two ends of the force limiting rod are provided with tooth-shaped structures, and one end of the force limiting rod is meshed with the tooth-shaped structures in the rotary cylinder; the side cover corresponds to the other end of the force limiting rod, is fixedly installed on the outer wall of the side plate of the fixing plate, and is internally provided with internal teeth meshed with the force limiting rod.

However, when the above patent documents are actually used, when the connecting piece where the safety belt is located and the lock catch are inserted and locked, the safety belt or the connecting rope needs to be fixed by inserting the lock catch after rotating on the surface of the rotating cylinder, which causes inconvenience for fixing the safety belt.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a force-limiting mortise lock.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a limit for strength type mortise lock, includes mortise lock device and safety belt, the safety belt surface is equipped with first spacing and the spacing of second, and the safety belt runs through first spacing and the spacing of second, the fixed first slot that is equipped with in first spacing bottom, first slot side runs through and has seted up first pinhole, the fixed second slot that is equipped with in the spacing bottom of second, second slot side runs through and has seted up the second pinhole, a pair of spacing arc groove has been seted up on the inside bottom surface one end surface of mortise lock device, first slot bottom and second slot bottom offset with spacing arc inslot portion respectively, the inside one end of keeping away from spacing arc groove of mortise lock device is equipped with spacing axle, the horizontal central axis of spacing axle coincides with the horizontal central axis of first pinhole and second pinhole.

Preferably, the one end that spacing axle kept away from the spacing frame of second is fixed and is equipped with horizontal spring, and horizontal spring keeps away from the one end and the inside lateral wall fixed connection of mortise lock device of spacing axle, a tip that spacing axle is close to horizontal spring is fixed and is equipped with vertical spring, and vertical spring keeps away from the one end and the inside bottom surface fixed connection of mortise lock device of spacing axle.

Preferably, fixed diagonal rods are fixedly arranged on two sides of the top of one end, close to the horizontal spring, of the limiting shaft, connecting rods are welded to the top ends of the fixed diagonal rods, and pressing blocks are fixedly arranged on the top ends of the connecting rods.

Preferably, the safety belt is kept away from the tip welding of first spacing and is equipped with the mounting, the surface that the safety belt is close to the mounting is equipped with the pinch-off blades, the even array in pinch-off blades surface has seted up the arc recess, and the pinch-off blades is fixed with the safety belt in the arc recess through evenly folding the clamp fixation with the safety belt.

Preferably, the top surface of the mortise lock device is provided with a cavity corresponding to the first limiting frame, the second limiting frame and the pressing block, and the first limiting frame, the second limiting frame and the pressing block are all located on the top surface of the mortise lock device.

Preferably, the clamping plate is formed by injection molding of a polyester resin material, and the arc-shaped grooves on the surface of the clamping plate are polished by abrasive paper to be smooth.

Preferably, the surface of the mortise lock device is uniformly sprayed with a waterproof insulating coating, and the surface of the mortise lock device is subjected to uniform fold polishing treatment.

Advantageous effects

The utility model discloses in, adopt the buckle cooperation of the first slot of mortise lock device fit-in and second slot, make when locking the safety belt and fix, can will get slot and second slot simultaneously and get into the mortise lock device and fix, can reserve the safety belt between first slot and the second slot simultaneously and fix through spacing axle in the mortise lock device together, can let the slow roll-off of safety belt when making car emergency braking, prevent that the too big safety belt of impact force is too tight and cause safety damage to the passerby.

The utility model discloses in, the surface that adopts the safety belt to be close to the mounting sets up the pinch-off blades, makes the safety belt when using inside the part is folding to be stored and the pinch-off blades, when car emergency braking made the safety belt tension, makes the safety belt slowly release in can following the inside arc recess of pinch-off blades, for the driver provides the safety belt secondary power limit, when avoiding car emergency braking the safety belt tension and damage human function.

Drawings

FIG. 1 is a schematic perspective view of a force limiting mortise lock;

FIG. 2 is a front cross-sectional view of a force limiting mortise lock;

FIG. 3 is a schematic top view of a force limiting mortise lock;

fig. 4 is a side view of a force limiting mortise lock.

Illustration of the drawings:

1. a mortise lock device; 2. a first slot; 3. a second slot; 4. a first limit bracket; 5. a first pin hole; 6. a second limiting frame; 7. a second pin hole; 8. a seat belt; 9. a limiting arc groove; 10. fixing the diagonal rods; 11. a connecting rod; 12. a pressing block; 13. a horizontal spring; 14. a vertical spring; 15. a clamping plate; 16. a fixing member; 17. and a limiting shaft.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a force-limiting mortise lock comprises a mortise lock device 1 and a safety belt 8, wherein a first limiting frame 4 and a second limiting frame 6 are arranged on the surface of the safety belt 8, the safety belt 8 penetrates through the first limiting frame 4 and the second limiting frame 6, a first slot 2 is fixedly arranged at the bottom of the first limiting frame 4, a first pin hole 5 is formed in the side surface of the first slot 2, a second slot 3 is fixedly arranged at the bottom of the second limiting frame 6, a second pin hole 7 is formed in the side surface of the second slot 3, a pair of limiting arc grooves 9 are formed in the surface of one end of the inner bottom surface of the mortise lock device 1, the bottom of the first slot 2 and the bottom of the second slot 3 are respectively abutted against the inner part of the limiting arc grooves 9, a limiting shaft 17 is arranged at one end of the inner part of the mortise lock device 1 far away from the limiting arc grooves 9, the horizontal central axis of the limiting shaft 17 is coincided with the horizontal central axes of the first pin hole 5 and the second pin, and one end of the horizontal spring 13 far away from the limiting shaft 17 is fixedly connected with the side wall inside the mortise lock device 1, one end of the limiting shaft 17 near the horizontal spring 13 is fixedly provided with a vertical spring 14, and one end of the vertical spring 14 far away from the limiting shaft 17 is fixedly connected with the bottom surface inside the mortise lock device 1, when a driver stretches and fixes the safety belt 8, the first slot 2 and the second slot 3 respectively penetrate through corresponding cavities at the top of the mortise lock device 1 to be inserted into the mortise lock device 1, in the inserting process, the end part of the limiting shaft 17 is extruded by the side surface of the second slot 3, so that the horizontal spring 13 at the other end of the limiting shaft 17 is compressed, the limiting shaft 17 moves towards the direction far away from the second slot 3, at the moment, the first slot 2 and the second slot 3 are continuously inserted into the mortise lock device 1 until the bottoms of the first slot 2 and the second slot 3 and the limiting arc groove 9 at the bottom surface inside the mortise lock device 1, at the moment, because the first pin hole 5, the second pin hole 7 and the limiting shaft 17 are displaced on the same horizontal line, the horizontal spring 13 restores to the original state, the limiting shaft 17, the first pin hole 5 and the second pin hole 7 penetrate through and are fixedly limited, when the limiting shaft 17 restores to the original state, because the safety belt 8 between the first slot 2 and the second slot 3 is also positioned in the mortise lock device 1, the limiting shaft 17 fixes and limits the safety belt 8 when the first pin hole 5 penetrates through and is limited, and between the first slot 2 and a cavity on the side surface of the mortise lock device 1, the buckle fit of the first slot 2 and the second slot 3 in the mortise lock device 1 is adopted, when the safety belt 8 is locked and fixed, the slot and the second slot 3 can enter the mortise lock device 1 to be fixed, and simultaneously the safety belt 8 between the first slot 2 and the second slot 3 can be reserved and fixed in the mortise lock device 1 through the limiting shaft 17, the safety belt 8 can slowly slide out during emergency braking of an automobile, the safety belt 8 with overlarge impact force is prevented from being too tight and causing safe damage to a travelling crane, a fixing part 16 is welded at the end part of the safety belt 8 far away from a first limiting frame 4, a clamping plate 15 is arranged on the surface of the safety belt 8 close to the fixing part 16, arc-shaped grooves are uniformly formed in the surface of the clamping plate 15 in an array mode, the clamping plate 15 is fixed in the arc-shaped grooves through uniformly folding and clamping the safety belt 8 and is fixed with the safety belt 8, cavities corresponding to the first limiting frame 4, a second limiting frame 6 and a pressing block 12 are formed in the top surface of the mortise lock device 1, the first limiting frame 4, the second limiting frame 6 and the pressing block 12 are all located on the top surface of the mortise lock device 1, the clamping plate 15 is formed by injection molding of a polyester resin material, the interiors of the arc-shaped grooves in the surface of the clamping plate 15 are, and the surface of the mortise lock device 1 adopts uniform folding and polishing treatment, a clamping plate 15 is arranged on the surface of the safety belt 8 close to a fixing piece 16, so that the safety belt 8 is partially folded and stored inside the clamping plate 15 when in use, when the safety belt 8 is stretched too tightly through automobile emergency braking, the safety belt 8 can be slowly released from an arc-shaped groove inside the clamping plate 15, secondary force limiting of the safety belt 8 is provided for a driver, the safety belt 8 is prevented from being too tight and damaging the function of a human body during the automobile emergency braking, fixing inclined rods 10 are fixedly arranged on two sides of the top of one end, close to a horizontal spring 13, of a limiting shaft 17, connecting rods 11 are welded at the top ends of the fixing inclined rods 10, pressing blocks 12 are fixedly arranged at the top ends of the connecting rods 11, the safety belt 8, which is abutted against a first slot 2, in the mortise lock device 1 is released through pressing the.

The utility model discloses a theory of operation: when the device is in actual use, firstly, when a driver stretches and fixes the safety belt 8, the first slot 2 and the second slot 3 respectively penetrate through a corresponding cavity at the top of the mortise lock device 1 to be inserted into the mortise lock device 1, in the inserting process, the end part of the limiting shaft 17 is extruded by the side surface of the second slot 3, the horizontal spring 13 at the other end of the limiting shaft 17 is compressed, the limiting shaft 17 moves towards the direction far away from the second slot 3, at the moment, the first slot 2 and the second slot 3 are continuously inserted into the mortise lock device 1 until the bottoms of the first slot 2 and the second slot 3 and the limiting arc groove 9 at the inner bottom surface of the mortise lock device 1 are limited, at the moment, as the first pin hole 5, the second pin hole 7 and the limiting shaft 17 are displaced on the same horizontal line, the horizontal spring 13 restores to the original state, the limiting shaft 17 and the first pin hole 5 and the second pin hole 7 penetrate through for fixing and limiting, and when the limiting shaft 17 restores to the original state, because the safety belt 8 between the first slot 2 and the second slot 3 is also positioned inside the mortise lock device 1, when the first pin hole 5 passes through the first pin hole for limiting, the limiting shaft 17 fixes the safety belt 8 between the limiting position and the cavity between the first slot 2 and the side surface of the mortise lock device 1, secondly, the clamping plate 15 is uniformly folded and limited and is fixedly provided with a section of safety belt 8, when the automobile is braked emergently, the safety belt 8 is in a tightening state, because the safety belt 8 is suddenly tightened due to the impact force and the inertia effect, the body of a driver is extruded, at the moment, the part of the safety belt 8 is slowly broken away from the arc-shaped groove of the clamping plate 15, the safety belt 8 is slowly extended, the stress force brought to the driver by the safety belt 8 during the emergency braking is avoided, the organ damage is caused, if the safety belt 8 in the clamping plate 15 is still tightened extremely after the safety belt 8 is completely released, by pressing the pressing block 12 on, the safety belt 8 abutting against the first slot 2 in the mortise lock device 1 is released, the safety belt 8 is extended for the second time, and due to the fact that the first slot 2 and the second slot 3 are fixed, after the safety belt 8 in the mortise lock device 1 is released, the mortise lock device 1 still keeps the first slot 2 and the second slot 3 fixed, and potential safety hazards caused by the fact that the safety belt 8 is completely loosened are avoided.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A force-limiting mortise lock comprising a mortise lock device (1) and a safety belt (8), characterized in that: safety belt (8) surface is equipped with first spacing (4) and second spacing (6), and safety belt (8) run through first spacing (4) and second spacing (6), first spacing (4) bottom is fixed and is equipped with first slot (2), first pinhole (5) have been run through to first slot (2) side, second spacing (6) bottom is fixed and is equipped with second slot (3), second pinhole (7) have been run through to second slot (3) side, a pair of spacing arc groove (9) have been seted up on mortise lock device (1) inside bottom surface one end surface, first slot (2) bottom and second slot (3) bottom offset with spacing arc groove (9) inside respectively, the inside one end of keeping away from spacing arc groove (9) of mortise lock device (1) is equipped with spacing axle (17), the horizontal central axis of spacing axle (17) and the horizontal center pin of first pinhole (5) and second pinhole (7) The lines coincide.

2. A force-limiting mortise lock according to claim 1 wherein: spacing axle (17) are kept away from the fixed horizontal spring (13) that is equipped with of one end of spacing frame (6) of second, and horizontal spring (13) keep away from the one end and the inside lateral wall fixed connection of mortise lock device (1) of spacing axle (17), a tip that spacing axle (17) is close to horizontal spring (13) is fixed and is equipped with vertical spring (14), and vertical spring (14) keep away from the one end and the inside bottom surface fixed connection of mortise lock device (1) of spacing axle (17).

3. A force-limiting mortise lock according to claim 2 wherein: fixed down tube (10) are fixedly arranged on both sides of the top of one end of the limiting shaft (17) close to the horizontal spring (13), a connecting rod (11) is welded on the top end of the fixed down tube (10), and a pressing block (12) is fixedly arranged on the top end of the connecting rod (11).

4. A force-limiting mortise lock according to claim 1 wherein: the end portion welding that first spacing (4) was kept away from in safety belt (8) is equipped with mounting (16), the surface that safety belt (8) are close to mounting (16) is equipped with pinch-off blades (15), the arc recess has been seted up to pinch-off blades (15) even array in surface, and pinch-off blades (15) are fixed with safety belt (8) in being fixed in the arc recess through evenly folding the clamp fastening with safety belt (8).

5. A force-limiting mortise lock according to claim 3 wherein: the mortise lock device is characterized in that a cavity corresponding to the first limiting frame (4), the second limiting frame (6) and the pressing block (12) is formed in the top surface of the mortise lock device (1), and the first limiting frame (4), the second limiting frame (6) and the pressing block (12) are all located on the top surface of the mortise lock device (1).

6. A force-limiting mortise lock according to claim 4 wherein: the clamping plate (15) is formed by injection molding of a polyester resin material, and the arc-shaped grooves in the surface of the clamping plate (15) are all polished by abrasive paper to be smooth.

7. A force-limiting mortise lock according to claim 1 wherein: the surface of the mortise lock device (1) is uniformly coated with a waterproof insulating coating, and the surface of the mortise lock device (1) is subjected to uniform fold polishing treatment.