Anti-loosening bilateral locking automobile safety belt retractor

Abstract

The utility model discloses an anti-loosening bilateral locking automobile safety belt retractor, which relates to the technical field of automobile accessories and comprises a bilateral locking retractor, a guide port is fixedly mounted at the front end of the surface of the bilateral locking retractor, and a safety belt rope is slidably arranged in the guide port. And one end of the safety belt rope is fixedly connected with a furling shaft body in the double-side locking furling device, a connecting plate is fixedly mounted at the rear end of the surface of the double-side locking furling device, a mounting piece is arranged on the surface of the connecting plate, and a locking piece is arranged on the upper portion of the surface of the mounting piece. Compared with an existing common double-side locking automobile safety belt retractor, the anti-loosening double-side locking automobile safety belt retractor has the advantages that the force borne by the connecting point of the half-tooth screw rod and the moving block is slight, and the situation that the point position in screwing connection is loosened and falls off due to the fact that the point position is subjected to pulling force generated instantaneously for multiple times is prevented; and the assembling stability of the double-side locking retractor and the automobile is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a double-sided locking automobile safety belt retractor which is anti-loosening. Background Art

[0002] A retractor is one with an emergency locking function. Under normal driving conditions, the seatbelt can be freely extended. In an emergency, the seatbelt can be quickly locked to protect the occupants. A typical retractor includes a frame, a reel, an emergency locking device, a vehicle sensor, and a belt sensor. The emergency locking device typically only includes a single-sided latch block. In the event of a collision, the latch block locks, allowing the seatbelt to quickly lock and protect the occupants. A double-sided locking car seatbelt retractor is equipped with ratchet locking devices on both sides, known as a double-sided locking system. This double-sided locking car seatbelt retractor can ensure a more balanced force on the frame and is less likely to twist.

[0003] For example, the public document with application number 202222869431.4 discloses a double-sided locking automobile seat belt retractor assembly. The structural design of the double locking device of the utility model enables the roller to be doubly locked in the event of emergency braking, so that the force on the frame is balanced, further enhancing the safety of emergency locking. However, the double-sided locking automobile seat belt retractor is also assembled with the automobile using a single bolt and connecting plate for threaded fixation. After being pulled multiple times, the double-sided locking automobile seat belt retractor relies entirely on the bolt fixation to bear the force. The bolt connection is directly and instantaneously subjected to force, which may cause loosening, thereby causing the double-sided locking automobile seat belt retractor to loosen or even fall off, affecting the safety and stability of use.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a double-side locking automobile seat belt retractor with anti-loosening function is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a double-side locking automobile safety belt retractor that prevents loosening, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a double-sided locking automobile seat belt retractor that prevents loosening, comprising a double-sided locking retractor, a guide opening fixedly installed on the front end of the surface of the double-sided locking retractor, a seat belt rope slidably arranged inside the guide opening, and one end of the seat belt rope is fixedly connected to the reeling shaft inside the double-sided locking retractor, a connecting plate fixedly installed on the rear end of the surface of the double-sided locking retractor, a mounting piece provided on the surface of the connecting plate, and a locking piece provided above the surface of the mounting piece.

[0007] Preferably, the mounting member comprises an insert that is fixedly installed through the surface of the connecting plate, and through cavities are formed on both left and right sides of the outer surface of the insert.

[0008] Preferably, the mounting member further comprises a half-thread screw rotatably arranged on the inner surface of the insert, and the surface of the half-thread screw is located inside the insert and is threadedly connected to a moving block.

[0009] Preferably, the mounting member further comprises support plates rotatably arranged on the left and right sides of the surface of the moving block, a limit plate is rotatably arranged on the upper end of the support plate, and the limit plate is rotatably connected to the upper inner surface of the through cavity at one end away from the support plate.

[0010] Preferably, the locking member comprises a handwheel fixedly arranged on the upper end of the insert through which the half-thread screw passes, and positioning grooves are evenly distributed on the upper end of the insert on the surface of the insert, surrounding the penetrating portion of the half-thread screw.

[0011] Preferably, the locking member also includes a locking pin that slides through the edge of the handwheel surface, and a fixing plate is fixedly installed on the surface of the locking pin below the handwheel, and a spring is fixedly installed above the surface of the fixing plate, and the upper end of the spring is fixedly connected to the handwheel.

[0012] Preferably, conical plates are rotatably provided at the upper and lower ends on both sides of the inner surface of the guide opening, and a gap much smaller than the thickness of the safety belt rope is left between the upper and lower corresponding conical plates on the same side, and a guide roller is fixedly provided in the middle of the left and right opposite ends of the surface of the conical plate, and a soft sleeve is fixed on the surface of the guide roller.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a mounting part, an inserting cylinder, a through cavity, a half-thread screw, a moving block, a support plate and a limit plate. The inserting cylinder limits the maximum insertion depth, and the triangular plane formed by the protrusion of the support plate and the limit plate uses the transverse grooves on both sides of the T-slot to limit the front end, so that the double-side locking retractor cannot move forward and backward after installation, thereby enabling effective and stable installation. When pulling, the force applied to the double-side locking retractor will first be transmitted to the support plate and the limit plate, and then to the connection point of the half-thread screw and the moving block, so that the force will not directly act on the half-thread screw and the moving block, and the force is reduced to a certain extent. Therefore, the force applied to the connection point of the half-thread screw and the moving block is relatively light, preventing the screw connection point from being loosened and falling off due to multiple instantaneous pulling forces, thereby greatly improving the stability of the assembly of the double-side locking retractor and the vehicle;

[0015] 2. The utility model provides greater stability to the entire mounting assembly through the arrangement of the locking member, handwheel, positioning slot, locking pin, fixing plate, and spring. Even if the double-side locking retractor is pulled vigorously, the mounting assembly is unlikely to rotate a second time, further enhancing the stability of the mounting assembly in securing the double-side locking retractor and further preventing it from loosening.

[0016] 3. The utility model is provided with a conical plate, a guide roller and a soft sleeve. The guide roller cooperates with the soft sleeve to avoid friction with the guide port when the safety belt rope is pulled, thereby preventing the safety belt rope from slipping. At the same time, the conical plates on both sides form an arc surface at the inflection point of the guide port outlet when the safety belt rope is pulled obliquely. The arc surface can better maintain a flat retraction, avoid a right-angle turn, cause the safety belt rope to fold, and thus cause the safety belt rope to be entangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall rear view structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting member and the locking member of the utility model;

[0020] Figure 4 This is a schematic diagram of the guide port structure of the utility model.

[0021] In the figure: 1. Double-sided locking retractor; 2. Guide port; 3. Safety belt rope; 4. Connecting plate; 5. Mounting part; 501. Insertion sleeve; 502. Through cavity; 503. Half-thread screw; 504. Moving block; 505. Support plate; 506. Limiting plate; 51. Locking part; 511. Hand wheel; 512. Positioning groove; 513. Locking pin; 514. Fixed plate; 515. Spring; 6. Conical plate; 7. Guide roller; 8. Soft sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 3As shown, a double-sided locking automobile seat belt retractor with anti-loosening function includes a double-sided locking retractor 1, a guide port 2 is fixedly installed on the front end of the surface of the double-sided locking retractor 1, a seat belt rope 3 is slidably arranged inside the guide port 2, and one end of the seat belt rope 3 is fixedly connected to the reeling shaft inside the double-sided locking retractor 1, a connecting plate 4 is fixedly installed on the rear end of the surface of the double-sided locking retractor 1, a mounting member 5 is provided on the surface of the connecting plate 4, and a locking member 51 is provided above the surface of the mounting member 5.

[0024] By adopting the above technical solution, the double-sided locking retractor 1 can be quickly and stably fixed by the mounting member 5 , and the mounting member 5 itself can be fixed by the locking member 51 , thereby preventing the double-sided locking retractor 1 from loosening.

[0025] Furthermore, the mounting member 5 includes an insert 501 fixedly installed through the surface of the connecting plate 4 , and through cavities 502 are formed on both left and right sides of the outer surface of the insert 501 .

[0026] By adopting the above technical solution, the insertion tube 501 limits the maximum insertion depth of the mounting member 5, thereby preventing the double-sided locking retractor 1 from moving and shaking toward the rear side.

[0027] Furthermore, the mounting member 5 further includes a half-thread screw 503 rotatably arranged on the inner surface of the insert cylinder 501 , and the surface of the half-thread screw 503 is located inside the insert cylinder 501 and is threadedly connected to a moving block 504 .

[0028] By adopting the above technical solution, the rotation of the half-thread screw 503 can control the up and down movement of the moving block 504.

[0029] Furthermore, the mounting member 5 also includes support plates 505 rotatably arranged on the left and right sides of the surface of the moving block 504, and a limit plate 506 is rotatably arranged on the upper end of the support plate 505. The end of the limit plate 506 away from the support plate 505 is rotatably connected to the upper inner surface of the through cavity 502.

[0030] By adopting the above technical solution, the moving block 504 moves, the distance between the end of the support plate 505 and the limit plate 506 is reduced, and the length of the support plate 505 and the limit plate 506 remains unchanged. In order to maintain their own length, the connecting ends of the support plate 505 and the limit plate 506 will extend and protrude to both sides of the T-slot through the through cavity 502. At this time, the insert 501 limits the maximum insertion depth, and the triangular plane formed after the support plate 505 and the limit plate 506 protrude uses the transverse grooves on both sides of the T-slot for front end limit, so that the double-sided locking retractor 1 cannot move forward and backward after installation, and can thus be effectively and stably installed.

[0031] Furthermore, the locking member 51 includes a handwheel 511 fixed at the upper end of the insert 501 through which the half-thread screw 503 passes. Positioning grooves 512 are evenly distributed around the penetration portion of the half-thread screw 503 on the upper end of the insert 501 below the handwheel 511.

[0032] By adopting the above technical solution, the handwheel 511 can be manually rotated by the half-thread screw 503 without using additional tools.

[0033] Furthermore, the locking member 51 also includes a locking pin 513 that is slidably arranged at the edge of the handwheel 511. The surface of the locking pin 513 is located below the handwheel 511 and is fixedly installed with a fixing plate 514. A spring 515 is fixedly installed above the surface of the fixing plate 514. The upper end of the spring 515 is fixedly connected to the handwheel 511.

[0034] By adopting the above technical solution, the locking pin 513 is inserted into the corresponding positioning groove 512 to lock and fix the mounting member 5 as a whole.

[0035] like Figure 1 and Figure 4 As shown, conical plates 6 are rotatably provided at the upper and lower ends on both sides of the inner surface of the guide opening 2, and a gap much smaller than the thickness of the safety belt rope 3 is left between the upper and lower corresponding conical plates 6 on the same side, and a guide roller 7 is fixedly provided in the middle of the left and right opposite ends of the surface of the conical plate 6, and a soft sleeve 8 is fixed on the surface of the guide roller 7.

[0036] By adopting the above technical solution, the guide roller 7 cooperates with the soft sleeve 8 to prevent the safety belt rope 3 from rubbing against the guide opening 2 when the safety belt rope 3 is pulled, thereby preventing the safety belt rope 3 from being worn;

[0037] The conical plate 6 forms an arc surface at the inflection point of the guide port 2 outlet when the safety belt rope 3 is pulled obliquely. The arc surface can better maintain a flat retraction and avoid a right-angle turn that causes the safety belt rope 3 to fold.

[0038] Working principle: When using the double-sided locking car seat belt retractor to prevent loosening, first, replace the screw hole of the double-sided locking retractor 1 of the car with a T-slot with a certain depth, insert the insert cylinder 501 into the T-slot, and after the insert cylinder 501 is inserted to the bottom, pull out the locking pin 513, so that the fixing plate 514 moves up to squeeze the spring 515. At this time, the hand wheel 511 can be rotated to drive the half-thread screw 503 to rotate. Rotating the half-thread screw 503 moves the moving block 504 upward. As the distance between the end of the support plate 505 and the limit plate 506 decreases, the length of the support plate 505 and the limit plate 506 remains unchanged. The two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100, and the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100. When the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100, the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100. When the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100, the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100. When the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100, the two-sided locking retractor 1 is fixed to the upper and lower parts of the vehicle body 100. The locking pin 513 is then released and inserted into the nearest positioning groove 512 under the elastic action of the spring 515, thereby locking the hand wheel 511, and the hand wheel 511 is fixed to the half-thread screw 503. The double-sided locking retractor 1 is connected, that is, the entire mounting part 5 is locked and fixed, so that the stability of the entire mounting part 5 is higher. Even if the double-sided locking retractor 1 is pulled hard, the mounting part 5 is unlikely to undergo a secondary rotation change. When the seat belt rope 3 is pulled in use, the guide roller 7 cooperates with the soft sleeve 8 to prevent the seat belt rope 3 from rubbing against the guide port 2 during twitching, thereby preventing the seat belt rope 3 from slipping. At the same time, the tapered plates 6 on both sides make the seat belt rope 3 form an arc surface at the inflection point at the exit of the guide port 2 when the seat belt rope 3 is pulled obliquely. The arc surface can better maintain a flat retraction. This is the working principle of the anti-loosening double-sided locking automobile seat belt retractor.

Claims

1. A double-sided locking automobile safety belt retractor that prevents loosening, comprising a double-sided locking retractor (1), characterized in that: A guide opening (2) is fixedly mounted on the front end of the surface of the double-sided locking retractor (1), a safety belt rope (3) is slidably mounted inside the guide opening (2), and one end of the safety belt rope (3) is fixedly connected to a reeling shaft inside the double-sided locking retractor (1), a connecting plate (4) is fixedly mounted on the rear end of the surface of the double-sided locking retractor (1), a mounting member (5) is mounted on the surface of the connecting plate (4), and a locking member (51) is mounted above the surface of the mounting member (5).

2. The anti-loosening double-side locking automobile seat belt retractor according to claim 1, characterized in that: The mounting member (5) comprises an insert tube (501) fixedly penetrated and installed on the surface of the connecting plate (4), and through cavities (502) are provided on both left and right sides of the outer surface of the insert tube (501).

3. The anti-loosening double-side locking automobile seat belt retractor according to claim 1, characterized in that: The mounting member (5) further comprises a half-thread screw (503) rotatably arranged on the inner surface of the insert cylinder (501), and the surface of the half-thread screw (503) is located inside the insert cylinder (501) and is threadedly connected to a moving block (504).

4. The anti-loosening double-side locking automobile seat belt retractor according to claim 1, characterized in that: The mounting member (5) further comprises support plates (505) rotatably arranged on the left and right sides of the surface of the moving block (504); a limit plate (506) is rotatably arranged on the upper end of the support plate (505); and one end of the limit plate (506) away from the support plate (505) is rotatably connected to the upper part of the inner surface of the through cavity (502).

5. The anti-loosening double-side locking automobile seat belt retractor according to claim 1, characterized in that: The locking member (51) comprises a hand wheel (511) fixedly arranged at the upper end of the insert tube (501) through which the half-thread screw (503) passes, and positioning grooves (512) are evenly distributed around the penetration portion of the half-thread screw (503) on the upper end of the surface of the insert tube (501) below the hand wheel (511).

6. The anti-loosening double-side locking automobile seat belt retractor according to claim 1, characterized in that: The locking member (51) further comprises a locking pin (513) slidably disposed at the edge of the surface of the hand wheel (511), a fixing plate (514) being fixedly mounted on the surface of the locking pin (513) below the hand wheel (511), a spring (515) being fixedly mounted above the surface of the fixing plate (514), and an upper end of the spring (515) being fixedly connected to the hand wheel (511).

7. The anti-loosening double-side locking automobile seat belt retractor according to claim 1, characterized in that: Conical plates (6) are rotatably provided at the upper and lower ends of the left and right sides of the inner surface of the guide opening (2), and a gap much smaller than the thickness of the safety belt rope (3) is left between the upper and lower corresponding conical plates (6) on the same side, and a guide roller (7) is fixedly provided at the middle of the left and right opposite ends of the surface of the conical plate (6), and a soft sleeve (8) is fixedly provided on the surface of the guide roller (7).

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