An aviation safety belt ratchet reel riveting device

Abstract

The present invention discloses a riveting device for a ratchet reel of an aviation safety belt, comprising: a pneumatic press and a riveting mechanism; the riveting mechanism is arranged in the pneumatic press, and the pneumatic press is used to pressurize and fix the riveting mechanism; the riveting mechanism comprises a fixing assembly and two upper and lower fixed tooth assemblies, and the fixing assembly is used to combine the upper and lower fixed tooth assemblies; the upper and lower fixed tooth assemblies have the same structure and are relatively arranged in the fixing assembly; the bottom of the upper fixed tooth assembly and the top of the lower fixed tooth assembly are both provided with gear teeth, and the upper and lower fixed tooth assemblies are meshed with each other through the gear teeth; the present invention can better rivet the ratchet and the core rod in the narrow space of the frame assembly by providing the upper and lower fixed tooth assemblies, and through the riveting rods symmetrically arranged on the axis of the fixed tooth assembly, the two ratchets on the core rod can be riveted simultaneously when the pneumatic press is pressed down. Compared with traditional manual riveting, the ratchet and core rod riveted by the present invention are more accurate and the process is better.

Description

Technical Field

[0001] The invention relates to the technical field of aviation safety belts, in particular to a ratchet reel riveting device for aviation safety belts. Background Art

[0002] As an important component of the aviation safety belt, the inertia reel is composed of a webbing, a frame assembly, a ratchet reel, a flap, a locking sensitive mechanism, a coil spring assembly and a control mechanism connection end; the ratchet reel is used to wind the webbing, and when the acceleration of the webbing pulled out by the inertia reel exceeds a certain value, the locking sensitive mechanism is activated, so that the flap engages with the ratchet reel and locks it, and the webbing can no longer be pulled out, thereby restraining the wearer; in order to achieve the lightweight requirements of the aircraft safety belt, the ratchet 5 and the core rod 8 of the inertia reel ratchet reel are changed from a separated state to an integrated ratchet core rod, such as Figure 7-Figure 8 As shown, thereby achieving the effect of weight loss.

[0003] Due to the change in the structure of the ratchet drum, its corresponding assembly method has also changed. According to the assembly requirements, the ratchet 5 and the core rod 8 need to be riveted together on the basis of the frame assembly 11 and the anti-wear sleeve 10. During the riveting process, the ratchet drum needs to avoid the position of the frame assembly 11 and the anti-wear sleeve 10, resulting in an extremely narrow riveting space. At the same time, in this narrow space, the ratchet 5 and the core rod 8 are riveted together, which requires both ensuring the high position requirements of the ratchets on both sides relative to the core rod and ensuring the firmness of the riveting.

[0004] Due to the limited space within the frame assembly 11, manual riveting is currently generally used. However, manual riveting has the following disadvantages: The operation is difficult. Within the confined space of the frame assembly 11, the manual operation space is severely limited, which may make it difficult to accurately align and apply force during the riveting process. The confined space may also obstruct the operator's vision, making it difficult to clearly observe the riveted parts, thereby affecting the quality of the riveting. The riveting quality is unstable. Within the confined space of the frame assembly 11, it is difficult to control the force of the manual strike. Excessive force may damage the product, while too little force may prevent the riveting from being in place. This may also affect the alignment accuracy of the riveting, resulting in an unreliable riveting and difficulty in ensuring product consistency. The riveting efficiency is low. Due to the increased difficulty and the additional time and effort required to ensure riveting quality, the efficiency of manually striking the riveting ratchet drum is greatly reduced. Furthermore, the long manual operation increases the operator's strength, leading to fatigue and reduced efficiency. Safety risks are increased. Using a hammer to strike within the confined space of the frame assembly 11 may cause the tool to lose control or accidentally injure the operator due to the limited space. Therefore, it is particularly important to develop an aviation safety belt ratchet reel riveting device suitable for narrow spaces. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an aviation safety belt ratchet reel riveting device, which aims to solve the problems in the background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a riveting device for an aviation safety belt ratchet reel, comprising: a pneumatic press and a riveting mechanism; the riveting mechanism is arranged in the pneumatic press, and the pneumatic press is used to pressurize and fix the riveting mechanism; the riveting mechanism includes a fixing assembly and two upper and lower fixed tooth assemblies, and the fixing assembly is used to combine the upper and lower fixed tooth assemblies; the upper and lower fixed tooth assemblies have the same structure and are relatively arranged in the fixing assembly; the bottom of the upper fixed tooth assembly and the top of the lower fixed tooth assembly are both provided with gear teeth, and the upper and lower fixed tooth assemblies are engaged with each other through the gear teeth.

[0007] Furthermore, the upper fixed tooth assembly consists of a limiting rotating seat at the tail and a pressure plate arranged on the front of the limiting rotating seat. A reel slot is provided at the bottom of the front of the pressure plate, and riveting assemblies are provided on both sides of the top of the front of the pressure plate. A limiting mechanism is also provided on the pressure plate.

[0008] Furthermore, the riveting assembly includes an outer cover plate groove arranged at the top of the front face of the pressure plate, a slider groove is arranged at the bottom of the outer cover plate groove, two sliders are slidingly arranged in the slider groove, a riveting rod is arranged on the outer end heads of the two sliders, and the two riveting rods extend out of the two ends of the slider groove, a through hole is arranged on the inner end heads of the two sliders, a transverse compression spring is arranged between the two through holes, and the two ends of the transverse compression spring respectively extend into the through holes of the two sliders; a shift rod is arranged on the front faces of the two sliders, and the shift rod passes through the limiting mechanism to the front face of the pressure plate; an outer cover plate is arranged on the outer cover plate groove.

[0009] Furthermore, the limiting mechanism includes an inner cover plate groove, a pressure block slide groove and a shift rod slide groove, which are sequentially arranged on the front face of the pressure plate from top to bottom, and the inner cover plate groove and the pressure block slide groove are connected to each other, the pressure block slide groove and the shift rod slide groove are connected to each other, the shift rod slide groove and the slider slide groove are connected to each other, and the length of the shift rod slide groove is smaller than the length of the slider slide groove, and the shift rod passes through the shift rod slide groove to the front face of the pressure plate; a pressure block is slidingly arranged in the pressure block slide groove, and the pressure block slides up and down in the pressure block slide groove, and a clamping block for clamping the shift rod is arranged at the bottom of the pressure block, and an inner cover plate is arranged in the inner cover plate groove, and the inner cover plate is fixed by fixing bolts; through holes are provided at the bottom of the inner cover plate and the top of the pressure block, and a longitudinal compression spring is arranged between the inner cover plate and the pressure block, and the two ends of the longitudinal compression spring respectively extend into the through holes of the inner cover plate and the pressure block.

[0010] Furthermore, the limited rotating seat includes a fixed column, a connecting through hole is provided in the fixed column, gear teeth are provided at the bottom of the fixed column, and the front of the fixed column is connected to the tail end of the pressure plate.

[0011] Furthermore, openings are provided at the bottom of the pressure plate of the upper fixed tooth assembly and the top of the pressure plate of the lower fixed tooth assembly, and a spring is provided between the pressure plate of the upper fixed tooth assembly and the pressure plate of the lower fixed tooth assembly, and the two ends of the spring respectively extend into the openings of the pressure plate of the upper fixed tooth assembly and the pressure plate of the lower fixed tooth assembly.

[0012] Furthermore, the fixing assembly includes a fixed base, support plates are provided on both sides of the fixed base, two upper and lower horizontally arranged main shafts are provided between the support plates, a limiting block is provided on the top between the support plates, and a vertically arranged limiting bolt is provided at the center position of the top of the limiting block; the fixing columns of the upper and lower tooth fixing assemblies are respectively installed on the upper and lower horizontally arranged main shafts through connecting through holes.

[0013] Furthermore, the support plate is fixed to both sides of the fixed base by multiple first fixing screws; the main shaft is fixed between the support plates by a sleeve, a gasket and an open retaining ring; the limit block is fixed between the support plates by multiple second fixing screws.

[0014] Compared with the existing technology, the present invention has the following beneficial effects: In order to solve the problem of changing the separated state of the ratchet and the core rod into an integrated ratchet and core rod, the present invention designs a device that can perform integrated riveting and forming in the narrow space of the frame component. Compared with traditional manual riveting, the ratchet and core rod riveted by the present invention are more accurate, the process is better, and the efficiency is higher; the present invention can achieve precise positioning and fixation of the ratchet and core rod by setting the upper and lower fixed tooth assemblies, and the upper and lower fixed tooth assemblies are pressurized by the pneumatic press, so that the upper and lower fixed tooth assemblies can simultaneously rivet the ratchet and core rod through the drive of the gear teeth, so that the process of the ratchet and core rod after riveting is more accurate; by setting the upper and lower fixed tooth assemblies, the ratchet and core rod can be better riveted in the narrow space of the frame component, and through the two riveting rods symmetrically arranged on the axis of the fixed tooth assembly, the two ratchets on the core rod can be riveted simultaneously when the pneumatic press is pressed down. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the connection structure of the fixing component and the fixing tooth component of the present invention.

[0017] Figure 3 This is an exploded view of the fixed tooth component of the present invention.

[0018] Figure 4 This is a schematic diagram of the spring connection structure of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the fixing component of the present invention.

[0020] Figure 6 It is a schematic structural diagram of the pneumatic press of the present invention.

[0021] Figure 7 This is a schematic diagram of the installation structure of the ratchet, core rod, anti-wear sleeve and frame assembly of the present invention.

[0022] Figure 8 Exploded view of the ratchet, core rod, wear sleeve and frame assembly of the present invention.

[0023] In the figure, 1. Pneumatic press; 101. Pneumatic press base; 102. Press head; 103. Safety grating; 104. Baffle; 105. Start button; 106. Emergency stop button; 107. Base fixing screw; 2. Riveting mechanism; 20. Fixing assembly; 201. Fixed base; 202. Support plate; 203. First fixing screw; 204. Spindle; 205. Bushing; 206. Gasket; 207. Open retaining ring; 208. Limit block; 209. Second fixing screw; 210. Limit bolt; 30. Fixed tooth assembly; 301. Press plate; 302. Transverse compression spring; 303. Riveting rod; 304, slider; 305, pressure block; 3051, clamping block; 306, longitudinal compression spring; 307, inner cover; 308, fixing bolt; 309, outer cover; 310, screw; 311, lever; 312, slider slot; 313, pressure block slot; 314, inner cover slot; 315, outer cover slot; 316, reel slot; 317, fixing column; 318, connecting through hole; 319, gear teeth; 320, lever slot; 411, spring; 5, ratchet; 6, opening; 7, riveting section; 8, core rod; 9, matching groove; 10, anti-wear sleeve; 11, frame assembly. DETAILED DESCRIPTION

[0024] like Figure 1 As shown, the present invention provides a technical solution: an aviation safety belt ratchet reel riveting device, comprising: a pneumatic press 1 and a riveting mechanism 2, wherein the riveting mechanism 2 is arranged in the pneumatic press 1, and the pneumatic press 1 is used to pressurize and fix the riveting mechanism 2.

[0025] like Figure 2 As shown, the riveting mechanism 2 includes a fixing component 20 and two upper and lower fixed tooth components 30, the fixing component 20 is used to combine the upper and lower fixed tooth components 30; the upper and lower fixed tooth components 30 have the same structure and are relatively arranged in the fixing component 20; the bottom of the upper fixed tooth component 30 and the top of the lower fixed tooth component 30 are both provided with gear teeth 319, and the upper and lower fixed tooth components 30 are engaged with each other through the gear teeth 319.

[0026] The present invention can achieve precise positioning and fixation of the ratchet 5 and the core rod 8 by setting up the upper and lower fixed tooth components 30. By pressurizing the upper and lower fixed tooth components 30 through the pneumatic press 1, the upper and lower fixed tooth components 30 can be driven by the gear teeth 319 to simultaneously rivet the ratchet 5 and the core rod 8, making the process of riveting the ratchet 5 and the core rod 8 more precise.

[0027] like Figure 3 As shown, the upper tooth fixing assembly 30 is composed of a limiting rotating seat at the tail and a pressure plate 301 arranged on the front of the limiting rotating seat. A reel slot 316 for fixing the core rod 8 is provided at the bottom of the front of the pressure plate 301, and riveting assemblies for fixing and riveting the ratchet 5 and the core rod 8 are provided on both sides of the top of the front of the pressure plate 301. A limiting mechanism for limiting the riveting assembly is also provided on the pressure plate 301.

[0028] Among them, the riveting assembly includes an outer cover groove 315 arranged at the top of the front side of the pressure plate 301, and a slider groove 312 is arranged at the bottom of the outer cover groove 315. Two sliders 304 are slidingly arranged in the slider groove 312, and a riveting rod 303 is arranged on the outer end of the two sliders 304, and the two riveting rods 303 extend out of the two ends of the slider groove 312. A through hole is provided on the inner end of the two sliders 304, and a transverse compression spring 302 is provided between the two through holes, and the two ends of the transverse compression spring 302 respectively extend into the through holes of the two sliders 304; a shift rod 311 is provided on the front side of the two sliders 304, and the shift rod 311 passes through the limiting mechanism to the front side of the pressure plate 301.

[0029] Among them, an outer cover plate 309 is provided on the outer cover plate groove 315, and a plurality of screws 310 for fixing are provided on the outer cover plate 309; through the outer cover plate 309 and the fixing screws 310, sufficient supporting force can be provided to the riveting rod 303 when riveting the ratchet 5 and the core rod 8.

[0030] The limiting mechanism includes an inner cover plate groove 314, a pressure block slot 313 and a lever slot 320 which are sequentially arranged on the front of the pressure plate 301 from top to bottom, and the inner cover plate groove 314 and the pressure block slot 313 are connected to each other, the pressure block slot 313 and the lever slot 320 are connected to each other, the lever slot 320 and the slider slot 312 are connected to each other, and the length of the lever slot 320 is less than the length of the slider slot 312, and the lever 311 passes through the lever slot 320 to the front of the pressure plate 301; the pressure block slot 313 is slidable in the lever slot 313 There is a pressure block 305, which slides up and down in the pressure block slide groove 313. A clamping block 3051 is provided at the bottom of the pressure block 305 for clamping the lever 311. An inner cover plate 307 is provided in the inner cover plate groove 314, and the inner cover plate 307 is fixed by a fixing bolt 308; the bottom of the inner cover plate 307 and the top of the pressure block 305 are both provided with through holes, and a longitudinal compression spring 306 is provided between the inner cover plate 307 and the pressure block 305, and the two ends of the longitudinal compression spring 306 respectively extend into the through holes of the inner cover plate 307 and the pressure block 305.

[0031] When the cam 304 is in the unlock state, the locking cam 3051 is locked and the locking cam 306 is unlocked, and the cam 3051 is locked.

[0032] The limited rotation seat includes a fixed column 317 , a connecting through hole 318 is provided in the fixed column 317 , a gear 319 is provided at the bottom of the fixed column 317 , and the front of the fixed column 317 is connected to the tail end of the pressure plate 301 .

[0033] Since the upper and lower tooth-fixing assemblies 30 have the same structure, the lower tooth-fixing assembly 30 will not be described in detail here.

[0034] like Figure 4As shown, openings are provided at the bottom of the pressure plate 301 of the upper tooth-fixing component 30 and the top of the pressure plate 301 of the lower tooth-fixing component 30, and a spring 411 is provided between the pressure plate 301 of the upper tooth-fixing component 30 and the pressure plate 301 of the lower tooth-fixing component 30, and both ends of the spring 411 extend into the openings of the pressure plate 301 of the upper tooth-fixing component 30 and the pressure plate 301 of the lower tooth-fixing component 30 respectively; through the spring 411, the pressure plates 301 of the upper and lower tooth-fixing components 30 can be reset after being pressed together.

[0035] like Figure 5 As shown, the fixing assembly 20 includes a fixing base 201, support plates 202 are provided on both sides of the fixing base 201, two upper and lower horizontally arranged main shafts 204 are provided between the support plates 202, a limiting block 208 is provided on the top between the support plates 202, and a vertically arranged limiting bolt 210 is provided at the center position of the top of the limiting block 208; the fixing columns 317 of the upper and lower tooth fixing assemblies 30 are respectively installed on the upper and lower horizontally arranged main shafts 204 through connecting through holes 318.

[0036] Among them, the support plate 202 is fixed to both sides of the fixed base 201 by multiple first fixing screws 203; the main shaft 204 is fixed between the support plates 202 by the shaft sleeve 205, the gasket 206 and the open retaining ring 207; the limit block 208 is fixed between the support plates 202 by multiple second fixing screws 209.

[0037] like Figure 6 As shown, the pneumatic press 1 is a prior art, and is composed of a pneumatic press base 101, a pressing head 102, a safety grating 103, a baffle 104, a start button 105, an emergency stop button 106 and a base fixing screw 107; the fixed base 201 is installed on the pneumatic press base 101 through the base fixing screw 107, and the pressing head 102 is facing the pressure plate 301 of the upper fixed tooth assembly 30.

[0038] The overall riveting process of the ratchet 5 and the core rod 8 is as follows: Figure 7-Figure 8As shown, the ratchet 5 is provided with a plurality of axially symmetrical openings 6, a riveting section 7 is provided under the opening 6, and a matching groove 9 corresponding to the riveting section 7 is provided on the core rod 8. When riveting, the riveting assembly is first limited by the limiting mechanism (the principle of the limiting mechanism is referred to above), the riveting rod 303 is received in the slider slot 312, and then the core rod 8 is placed in the reel slot 316 on the upper and lower fixed tooth components 30. After completion, the limiting mechanism is released, the riveting rod 303 slides out and is inserted into the opening 6 of the ratchet 5 on the core rod 8 to complete the positioning of the ratchet 5, and then the pneumatic press 1 is started, and the pressure head 102 presses the pressure plate 301 of the upper fixed tooth component 30. 19 is engaged, the two pressure plates 301 drive the riveting assembly by applying pressure inward, and the riveting rod 303 presses the riveting segment 7 into the matching groove 9 on the core rod 8. After completion, the pneumatic press 1 is closed, and the pressure plates 301 of the upper and lower fixed tooth assemblies 30 are reset under the action of the spring 411. At this time, the riveting assembly is limited by the limiting mechanism (please see the principle of the limiting mechanism above), the riveting rod 303 is received into the slider slot 312, the core rod 8 is rotated in the reel slot 316, and the above operation is repeated to press the other riveting segments 7 on the ratchet 5 into the corresponding matching grooves 9 on the core rod 8, until all the riveting segments 7 are pressed into the matching grooves 9, completing the riveting of the ratchet 5 and the core rod 8.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An aviation safety belt ratchet reel riveting device, characterized in that: include: A pneumatic press (1) and a riveting mechanism (2); the riveting mechanism (2) is arranged in the pneumatic press (1), and the pneumatic press (1) is used to pressurize and fix the riveting mechanism (2); the riveting mechanism (2) includes a fixing assembly (20) and two upper and lower fixed tooth assemblies (30), and the fixing assembly (20) is used to combine the upper and lower fixed tooth assemblies (30); the upper and lower fixed tooth assemblies (30) have the same structure and are relatively arranged in the fixing assembly (20); the bottom of the upper fixed tooth assembly (30) and the top of the lower fixed tooth assembly (30) are both provided with gear teeth (319), and the upper and lower fixed tooth assemblies (30) are meshed with each other through the gear teeth (319); The upper fixed tooth assembly (30) is composed of a rear limited rotation seat and a pressure plate (301) arranged on the front of the limited rotation seat, the front bottom of the pressure plate (301) is provided with a reel slot (316), the front top of the pressure plate (301) is provided with riveting assemblies on both sides, and a limiting mechanism is also provided on the pressure plate (301); The riveting assembly includes an outer cover plate groove (315) arranged at the top of the front face of the pressure plate (301), a slider groove (312) is arranged at the bottom of the outer cover plate groove (315), two sliders (304) are slidably arranged in the slider groove (312), a riveting rod (303) is arranged on the outer end of each slider (304), and the two riveting rods (303) extend out of both ends of the slider groove (312), a through hole is arranged on the inner end of each slider (304), a transverse compression spring (302) is arranged between the two through holes, and the two ends of the transverse compression spring (302) respectively extend into the through holes of the two sliders (304); a shift rod (311) is arranged on the front face of each slider (304), and the shift rod (311) passes through the limiting mechanism to the front face of the pressure plate (301); an outer cover plate (309) is arranged on the outer cover plate groove (315).

2. The aviation safety belt ratchet reel riveting device according to claim 1, characterized in that: The limiting mechanism includes an inner cover plate groove (314), a pressure block groove (313) and a lever groove (320) which are sequentially arranged on the front of the pressure plate (301) from top to bottom, and the inner cover plate groove (314) and the pressure block groove (313) are interconnected, the pressure block groove (313) and the lever groove (320) are interconnected, the lever groove (320) and the slider groove (312) are interconnected, and the length of the lever groove (320) is less than the length of the slider groove (312), and the lever (311) passes through the lever groove (320) to the front of the pressure plate (301); a pressure block groove (313) is provided in the pressure block groove (313) for sliding. The pressing block (305) slides up and down in the pressing block slide groove (313), a clamping block (3051) for clamping the shifting rod (311) is provided at the bottom of the pressing block (305), an inner cover plate (307) is provided in the inner cover plate groove (314), and the inner cover plate (307) is fixed by a fixing bolt (308); the bottom of the inner cover plate (307) and the top of the pressing block (305) are both provided with through holes, a longitudinal compression spring (306) is provided between the inner cover plate (307) and the pressing block (305), and two ends of the longitudinal compression spring (306) extend into the through holes of the inner cover plate (307) and the pressing block (305), respectively.

3. The aviation safety belt ratchet reel riveting device according to claim 2, characterized in that: The limited rotation seat includes a fixed column (317), a connecting through hole (318) is provided in the fixed column (317), a gear tooth (319) is provided at the bottom of the fixed column (317), and the front of the fixed column (317) is connected to the rear end of the pressure plate (301).

4. The aviation safety belt ratchet reel riveting device according to claim 3, characterized in that: The bottom of the pressure plate (301) of the upper fixed tooth assembly (30) and the top of the pressure plate (301) of the lower fixed tooth assembly (30) are both provided with openings, and a spring (411) is provided between the pressure plate (301) of the upper fixed tooth assembly (30) and the pressure plate (301) of the lower fixed tooth assembly (30), and the two ends of the spring (411) extend into the openings of the pressure plate (301) of the upper fixed tooth assembly (30) and the pressure plate (301) of the lower fixed tooth assembly (30), respectively.

5. The aviation safety belt ratchet reel riveting device according to claim 4, characterized in that: The fixing assembly (20) includes a fixing base (201), support plates (202) are provided on both sides of the fixing base (201), two upper and lower transversely arranged main shafts (204) are provided between the support plates (202), a limiting block (208) is provided at the top between the support plates (202), and a vertically arranged limiting bolt (210) is provided at the center position of the top of the limiting block (208); the fixing columns (317) of the upper and lower fixed tooth assemblies (30) are respectively installed on the upper and lower transversely arranged main shafts (204) through the connecting through holes (318).

6. The aviation safety belt ratchet reel riveting device according to claim 5, characterized in that: The support plate (202) is fixed to both sides of the fixed base (201) by a plurality of first fixing screws (203); the main shaft (204) is fixed between the support plates (202) by a shaft sleeve (205), a gasket (206) and an open retaining ring (207); and the limit block (208) is fixed between the support plates (202) by a plurality of second fixing screws (209).

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