A quick-change self-locking suspension connecting rod assembly

Abstract

The present invention discloses a quick-change self-locking suspension connecting rod assembly, which relates to the technical field of fasteners. In order to solve the problem that the suspension connecting rod assembly is usually connected only by threaded connection, the threaded connection will become loose after being used for a period of time in a vibration environment, causing the fixed parts to shake or even fall off, and the fixation is not stable enough. An anti-loosening fastening connection component jacket is arranged below the suspension chassis, and a T-shaped fastening connecting rod is arranged above the suspension chassis. The interior of the anti-loosening fastening connection component jacket is respectively provided with a mounting hole, a floating equipment mounting hole and a connecting through hole. The interior of the mounting hole is interference-mounted with a limited rotation sleeve, and the interior of the floating equipment mounting hole is provided with a drive unlocking sleeve and a fixed self-locking gear sleeve. The two ends of the interior of the limited rotation sleeve are relatively provided with fastening displacement grooves arranged at 90 degrees spirally.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, and in particular to a quick-change self-locking suspension type connecting rod assembly. Background Art

[0002] The suspension type connecting rod assembly is a kind of mechanical parts used for fastening and connection and is widely used. It is used in self-locking and suspension type connection and fastening occasions such as rail vehicles, new energy vehicles, engineering machinery, etc. For example, the fastening assembly and method of the connecting rod for quick installation and quick change of the self-locking function of the battery bracket of new energy vehicles, and it also has the installation and application of various application occasions in the installation vibration environment.

[0003] The suspension connecting rod assembly in the prior art is usually connected only by threads. After being used for a period of time in a vibrating environment, the threaded connection will become loose, causing the fixed parts to shake or even fall off, and the fixation is not stable enough. Therefore, we propose a quick-change self-locking suspension connecting rod assembly to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a quick-change self-locking suspension connecting rod assembly to solve the problem in the above background technology that the suspension connecting rod assembly is usually only connected by threaded connection. After being used for a period of time in a vibration environment, the threaded connection will become loose, causing the fixed parts to shake or even fall off, and the fixation is not stable enough.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quick-change self-locking suspension connecting rod assembly, comprising a suspension chassis, a sleeve of an anti-loosening fastening connection component is arranged at the bottom of the suspension chassis, a T-shaped fastening connecting rod is arranged at the top of the suspension chassis, the interior of the sleeve of the anti-loosening fastening connection component is respectively provided with a mounting hole, a floating equipment mounting hole and a connecting through hole, a limited rotation sleeve is interference-fitted inside the mounting hole, and the lower end of the T-shaped fastening connecting rod extends to the interior of the limited rotation sleeve, a driving unlocking sleeve and a fixed self-locking tooth sleeve are arranged inside the floating equipment mounting hole, and the fixed self-locking tooth sleeve is sleeved on the outside of the driving unlocking sleeve The driving unlocking sleeve, the fixed self-locking tooth sleeve, the connecting through hole and the limiting rotation sleeve are provided with hexagonal flange bolts, the upper end of the T-type fastening connecting rod is provided with a T-type fastening connecting rod cap, and a fixing rod is provided at the middle position below the T-type fastening connecting rod cap, and cylindrical shafts are symmetrically provided on both sides of the fixing rod, and a clamping block is provided below the cylindrical shaft, and the inner part of the upper end of the limiting rotation sleeve is symmetrically provided with clamping block mounting grooves, and a cylindrical shaft limiting groove is provided below the clamping block mounting groove, and the cylindrical shaft is located inside the cylindrical shaft limiting groove, and the two ends inside the limiting rotation sleeve are relatively provided with fastening displacement grooves arranged in a 90-degree spiral.

[0006] Preferably, the mounting hole is located above the floating mounting hole of the device, and the connecting via is located below the floating mounting hole of the device.

[0007] Preferably, a reinforcing ring is provided between the T-shaped fastening connecting rod cap and the fixed rod, a suspension chassis groove is provided at the middle position of the suspension chassis, the T-shaped fastening connecting rod cap is in a rectangular structure, and the length of the T-shaped fastening connecting rod cap is greater than the length of the suspension chassis groove, T-shaped fastening connecting rod cap limiting blocks are respectively provided diagonally above the suspension chassis, and the inner surface of the T-shaped fastening connecting rod cap limiting block is located in the same plane as the inner wall of the suspension chassis groove, the T-shaped fastening connecting rod cap limiting block on one side is located at the rear side of one side of the T-shaped fastening connecting rod cap, and the T-shaped fastening connecting rod cap limiting block on the other side is located at the front side of the other side of the T-shaped fastening connecting rod cap.

[0008] Preferably, an upper ring is provided at the upper end of the drive unlocking sleeve, a lower ring is provided below the upper ring, and the outer diameter of the lower ring is smaller than the outer diameter of the upper ring, a drive unlocking sleeve countersunk hole is provided inside the upper end of the upper ring, an inner hexagonal groove is provided at the lower end of the upper ring and the inside of the lower ring, and the nut of the hexagonal flange bolt fits with the inner hexagonal groove.

[0009] Preferably, a back-stop bevel tooth is provided at the lower end of the upper collar, a compression spring is provided at the nut flange of the hexagonal flange bolt and the inner wall of the countersunk hole of the drive unlocking sleeve, and the upper and lower ends of the compression spring are respectively fitted with the lower end of the nut flange of the hexagonal flange bolt and the inner wall of the countersunk hole of the drive unlocking sleeve, a gasket is provided between the upper end of the nut flange of the hexagonal flange bolt and the floating mounting hole of the equipment, and the upper and lower ends of the gasket are respectively fitted with the upper end of the nut flange of the hexagonal flange bolt and the inner wall of the countersunk hole of the drive unlocking sleeve.

[0010] Preferably, the fixed self-locking gear sleeve is interference fit with the floating mounting hole of the equipment, a drive unlocking sleeve groove is provided inside the fixed self-locking gear sleeve, and the inner diameter of the drive unlocking sleeve groove is larger than the outer diameter of the lower ring, the upper end of the fixed self-locking gear sleeve is provided with self-locking bevel teeth, and the self-locking bevel teeth are meshed with the stop bevel teeth, the outer ring of the lower end of the fixed self-locking gear sleeve is provided with four limiting ribs, the outer ring of the lower end of the connecting through hole is provided with four limiting grooves, and the limiting ribs extend to the inside of the limiting grooves.

[0011] Preferably, an elastic clamping ring is arranged between the upper end of the clamping block and the lower end of the countersunk hole of the limiting rotating sleeve, a bolt groove is arranged inside the T-shaped fastening connecting rod, and the inner wall of the bolt groove is connected to the outer side of the upper end of the hexagonal flange bolt through a thread.

[0012] Preferably, a limiting rotating sleeve countersunk hole is provided at the lower end of the limiting rotating sleeve, and the clamping block is located inside the limiting rotating sleeve countersunk hole, the limiting rotating sleeve countersunk hole is connected with the fastening displacement groove, and the angle between the lower end of the fastening displacement groove and the clamping block installation groove is ninety degrees.

[0013] Preferably, the outer sleeve of the anti-loosening and fastening connection component is made of aluminum or steel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The invention uses a limiting rotating sleeve to spirally limit the lower end of the T-shaped fastening link, and uses an elastic clamping ring to fill the gap between the limiting rotating sleeve and the T-shaped fastening link, so that the position of the limiting rotating sleeve and the T-shaped fastening link after being connected is more stable, and at the same time, the T-shaped fastening link cap at the upper end of the T-shaped fastening link is limited by the T-shaped fastening link cap limiting clamping block at the upper end of the suspension chassis, effectively preventing the T-shaped fastening link from rotating, and at the same time, the driving unlocking sleeve below limits the compression spring, so that the loosening of the hexagonal flange bolt is effectively prevented by pressing the compression spring, and at the same time, The driving unlocking sleeve and the fixed self-locking sleeve are meshed and connected by self-locking bevel teeth and stop bevel teeth, which effectively limits the angle of the fixed self-locking sleeve. At the same time, the limiting groove and the limiting rib cooperate with each other to lock the angle of the fixed self-locking sleeve itself, realizing a quick-change self-locking fastening connection mode combined with a threaded type, and achieving a never-loosening effect. This solves the problem that the suspended connecting rod assembly is usually only connected by threads, and the threaded connection will become loose after being used for a period of time in a vibrating environment, causing the fixed parts to shake or even fall off, and the fixation is not stable enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the outer sleeve of the anti-loosening fastening connection component in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the T-shaped fastening connecting rod in the present invention;

[0019] Figure 4 It is a front view of the T-shaped fastening connecting rod in the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the driving unlocking sleeve in the present invention;

[0021] Figure 6 This is a front view of a fixed self-locking tooth sleeve in the present invention;

[0022] Figure 7 A bottom view of the fixed self-locking tooth sleeve of the present invention;

[0023] Figure 8 It is a structural schematic diagram of the position-limiting rotating sleeve in the present invention;

[0024] Fig. 9The three-dimensional image of the limiting rotating sleeve in the present invention Figure 1 ;

[0025] Fig.10 The three-dimensional image of the limiting rotating sleeve in the present invention Figure 2 ;

[0026] Fig.11 It is a three-dimensional diagram of the suspension chassis in the present invention.

[0027] In the figure: 1. Anti-loosening fastening connection component jacket; 2. T-type fastening connecting rod; 3. Drive unlocking sleeve; 4. Fixed self-locking gear sleeve; 5. Hexagonal flange bolt; 6. Gasket; 7. Compression spring; 8. Limiting rotation sleeve; 9. Elastic clamp ring; 10. Suspension chassis; 11. Mounting hole; 12. Equipment floating mounting hole; 13. Connection through hole; 14. Limiting groove; 21. T-type fastening connecting rod cap; 22. Reinforcement ring; 23. Fixing rod; 24. Cylindrical shaft; 25, clamping block; 26, bolt groove; 31, upper collar; 32, lower collar; 33, drive unlocking sleeve countersunk hole; 34, hexagonal groove; 35, backstop bevel gear; 41, self-locking bevel gear; 42, limiting rib; 43, drive unlocking sleeve groove; 81, limit rotation sleeve countersunk hole; 82, cylindrical shaft limiting groove; 83, fastening displacement groove; 84, clamping block installation groove; 101, suspension chassis groove; 102, T-type fastening connecting rod cap limiting clamping block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-11An embodiment of the present invention is as follows: a quick-change self-locking suspension connecting rod assembly includes a suspension chassis 10, a locking fastening connection component jacket 1 is provided below the suspension chassis 10, a T-shaped locking connecting rod 2 is provided above the suspension chassis 10, a mounting hole 11, a floating device mounting hole 12 and a connecting through hole 13 are provided inside the locking fastening connection component jacket 1, a limited rotation sleeve 8 is installed in the mounting hole 11 through interference fit, and the lower end of the T-shaped locking connecting rod 2 extends to the inside of the limited rotation sleeve 8, a driving unlocking sleeve 3 and a fixed self-locking tooth sleeve 4 are provided inside the floating device mounting hole 12, and the fixed self-locking tooth sleeve 4 is sleeved on the outside of the driving unlocking sleeve 3, and the driving unlocking sleeve 3 is unlocked. The sleeve 3, the fixed self-locking gear sleeve 4, the connecting through hole 13 and the limiting rotation sleeve 8 are provided with a hexagonal flange bolt 5, the upper end of the T-type fastening connecting rod 2 is provided with a T-type fastening connecting rod cap 21, and a fixing rod 23 is provided at the middle position below the T-type fastening connecting rod cap 21, and cylindrical shafts 24 are symmetrically provided on both sides of the fixing rod 23, and a clamping block 25 is provided below the cylindrical shaft 24. The upper end of the limiting rotation sleeve 8 is symmetrically provided with clamping block mounting grooves 84, and a cylindrical shaft limiting groove 82 is provided below the clamping block mounting groove 84, and the cylindrical shaft 24 is located inside the cylindrical shaft limiting groove 82, and the two ends inside the limiting rotation sleeve 8 are relatively provided with fastening displacement grooves 83 arranged in a ninety-degree spiral.

[0030] Furthermore, the mounting hole 11 is located above the floating mounting hole 12 of the device, and the connecting via 13 is located below the floating mounting hole 12 of the device.

[0031] Furthermore, a reinforcing ring body 22 is arranged between the T-shaped fastening connecting rod cap 21 and the fixing rod 23, a suspension chassis groove 101 is arranged at the middle position of the suspension chassis 10, the T-shaped fastening connecting rod cap 21 is of a rectangular structure, and the length of the T-shaped fastening connecting rod cap 21 is greater than the length of the suspension chassis groove 101, T-shaped fastening connecting rod cap limiting blocks 102 are respectively arranged diagonally above the suspension chassis 10, and the inner surface of the T-shaped fastening connecting rod cap limiting blocks 102 and the inner wall of the suspension chassis groove 101 are located in the same plane, the T-shaped fastening connecting rod cap limiting blocks 102 on one side are located at the rear side of one side of the T-shaped fastening connecting rod cap 21, and the T-shaped fastening connecting rod cap limiting blocks 102 on the other side are located at the front side of the other side of the T-shaped fastening connecting rod cap 21, and the rotation angle of the T-shaped fastening connecting rod cap 21 is limited by the T-shaped fastening connecting rod cap limiting blocks 102.

[0032] Furthermore, an upper ring 31 is provided at the upper end of the drive unlocking sleeve 3, a lower ring 32 is provided below the upper ring 31, and the outer diameter of the lower ring 32 is smaller than the outer diameter of the upper ring 31, a drive unlocking sleeve countersunk hole 33 is provided inside the upper end of the upper ring 31, an inner hexagonal groove 34 is provided at the lower end of the upper ring 31 and the inside of the lower ring 32, and the nut of the hexagonal flange bolt 5 fits with the inner hexagonal groove 34.

[0033] Furthermore, a back-stop bevel tooth 35 is provided at the lower end of the upper collar 31, and a compression spring 7 is provided between the nut flange of the hexagonal flange bolt 5 and the inner wall of the countersunk hole 33 of the drive unlocking sleeve, and the upper and lower ends of the compression spring 7 are respectively fitted with the lower end of the nut flange of the hexagonal flange bolt 5 and the inner wall of the countersunk hole 33 of the drive unlocking sleeve, and a gasket 6 is provided between the upper end of the nut flange of the hexagonal flange bolt 5 and the floating mounting hole 12 of the equipment, and the upper and lower ends of the gasket 6 are respectively fitted with the upper end of the nut flange of the hexagonal flange bolt 5 and the inner wall of the countersunk hole 33 of the drive unlocking sleeve, and the hexagonal flange bolt 5 is pressed by the setting of the compression spring 7, thereby preventing the hexagonal flange bolt 5 from loosening.

[0034] Furthermore, the fixed self-locking gear sleeve 4 is interference fit with the floating mounting hole 12 of the equipment, and a driving unlocking sleeve groove 43 is provided inside the fixed self-locking gear sleeve 4, and the inner diameter of the driving unlocking sleeve groove 43 is larger than the outer diameter of the lower sleeve ring 32, and a self-locking helical tooth 41 is provided at the upper end of the fixed self-locking gear sleeve 4, and the self-locking helical tooth 41 is meshed with the stop helical tooth 35, and four limiting ribs 42 are provided in an outer ring at the lower end of the fixed self-locking gear sleeve 4, and four limiting grooves 14 are provided in an outer ring connected to the lower end of the through hole 13, and the limiting rib 42 extends to the inside of the limiting groove 14, and the angle of the fixed self-locking gear sleeve 4 is locked by the adaptation of the limiting groove 14 and the limiting rib 42.

[0035] Furthermore, an elastic clamping ring 9 is arranged between the upper end of the clamping block 25 and the lower end of the countersunk hole 81 of the limiting rotation sleeve, a bolt groove 26 is arranged inside the T-shaped fastening connecting rod 2, and the inner wall of the bolt groove 26 is connected to the outer side of the upper end of the hexagonal flange bolt 5 by a thread, and the elastic clamping ring 9 fills the gap between the upper end of the clamping block 25 and the lower end of the countersunk hole 81 of the limiting rotation sleeve.

[0036] Furthermore, a limiting rotating sleeve countersunk hole 81 is provided at the lower end of the limiting rotating sleeve 8, and the clamping block 25 is located inside the limiting rotating sleeve countersunk hole 81, the limiting rotating sleeve countersunk hole 81 is connected with the fastening displacement groove 83, and the angle between the lower end of the fastening displacement groove 83 and the clamping block installation groove 84 is ninety degrees. The clamping block 25 is effectively limited by the setting of the limiting rotating sleeve countersunk hole 81.

[0037] Furthermore, the material of the anti-loosening and fastening connection component sleeve 1 is aluminum or steel, and the surfaces of the driving unlocking sleeve 3 and the fixed self-locking gear sleeve 4 are provided with corrosion-resistant coatings, and the corrosion resistance of the components is improved by the provision of each coating.

[0038] Working principle: when in use, the lower end of the T-shaped fastening link 2 is passed through the suspension chassis groove 101, and the block 25 is aligned with and passed through the block installation groove 84. At this time, the block installation groove 84 is rotated along the arc of the fastening displacement groove 83, and finally extends downward to the limited rotation sleeve countersunk hole 81. At the same time, the cylindrical shaft 24 is passed through the block installation groove 84 and enters the cylindrical shaft limiting groove 82. When the T-shaped fastening link 2 is rotated, the cylindrical shaft 24 and the block 25 are misaligned with the limited rotation sleeve countersunk hole 81 and the block installation groove 84. At the same time, the T-shaped fastening link 2 and the limited rotation sleeve 8 are locked with each other. At the same time, the setting of the elastic clamp ring 9 fills the gap between the block 25 and the limited rotation sleeve countersunk hole 81, thereby improving the stability of the T-shaped fastening link 2. At this time, the T-shaped fastening link cap 21 is placed between the T-shaped fastening link cap limiting block 102 above the suspension chassis 10, thereby effectively preventing The rotation of the T-type fastening connecting rod 2 is stopped, and a gasket 6 is placed in the floating mounting hole 12 of the equipment. At this time, the hexagonal flange bolt 5 is spirally installed into the connecting through hole 13 and the bolt groove 26. The thread inside the bolt groove 26 locks the hexagonal flange bolt 5. The nut of the hexagonal flange bolt 5 is sleeved on the outside. At this time, the drive unlocking sleeve 3 is installed, and the compression spring 7 is placed between the flange of the hexagonal flange bolt 5 and the countersunk hole 33 of the drive unlocking sleeve. At the same time, the nut of the hexagonal flange bolt 5 fits with the inner hexagonal groove 34, and the fixed self-locking gear sleeve 4 is installed on the outside of the drive unlocking sleeve 3. The fixed self-locking gear sleeve 4 is interference fit with the floating mounting hole 12 of the equipment, and the limiting rib 42 is aligned with the limiting groove 14. The self-locking bevel tooth 41 is meshed with the stop bevel tooth 35, thereby realizing the overall installation. The hexagonal flange bolt 5 can be pressed by the setting of the compression spring 7, thereby effectively preventing the hexagonal flange bolt 5 from loosening.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A quick-change self-locking suspension connecting rod assembly, comprising a suspension chassis (10), characterized in that: An anti-loosening fastening connection component jacket (1) is provided below the suspension chassis (10), and a T-shaped fastening connecting rod (2) is provided above the suspension chassis (10). The interior of the anti-loosening fastening connection component jacket (1) is respectively provided with a mounting hole (11), a floating device mounting hole (12), and a connecting through hole (13). A limited rotation sleeve (8) is installed in the interior of the mounting hole (11) in an interference fit manner, and the lower end of the T-shaped fastening connecting rod (2) extends to the interior of the limited rotation sleeve (8). A driving unlocking sleeve (3) and a fixed self-locking tooth sleeve (4) are provided in the interior of the floating device mounting hole (12), and the fixed self-locking tooth sleeve (4) is sleeved on the outside of the driving unlocking sleeve (3). The driving unlocking sleeve (3), the fixed self-locking tooth sleeve (4), and the connecting through hole (13) are A hexagonal flange bolt (5) is arranged inside the limiting rotation sleeve (8), a T-shaped fastening connecting rod cap (21) is arranged at the upper end of the T-shaped fastening connecting rod (2), a fixing rod (23) is arranged at the middle position below the T-shaped fastening connecting rod cap (21), cylindrical shafts (24) are symmetrically arranged on both sides of the fixing rod (23), a clamping block (25) is arranged below the cylindrical shaft (24), a clamping block installation groove (84) is symmetrically arranged inside the upper end of the limiting rotation sleeve (8), a cylindrical shaft limiting groove (82) is arranged below the clamping block installation groove (84), and the cylindrical shaft (24) is located inside the cylindrical shaft limiting groove (82), and fastening displacement grooves (83) arranged in a 90-degree spiral are arranged opposite to each other at two ends inside the limiting rotation sleeve (8); An elastic clamping ring (9) is provided between the upper end of the clamping block (25) and the lower end of the countersunk hole (81) of the limiting rotating sleeve, a bolt groove (26) is provided inside the T-shaped fastening connecting rod (2), and the inner wall of the bolt groove (26) is connected to the outer side of the upper end of the hexagonal flange bolt (5) through a threaded connection; A limiting rotation sleeve countersunk hole (81) is provided at the lower end of the limiting rotation sleeve (8), and the clamping block (25) is located inside the limiting rotation sleeve countersunk hole (81). The limiting rotation sleeve countersunk hole (81) is connected to the fastening displacement groove (83), and the angle between the lower end of the fastening displacement groove (83) and the clamping block installation groove (84) is ninety degrees.

2. A quick-change self-locking suspension connecting rod assembly according to claim 1, characterized in that: The mounting hole (11) is located above the equipment floating mounting hole (12), and the connecting via hole (13) is located below the equipment floating mounting hole (12).

3. The quick-change self-locking suspension connecting rod assembly according to claim 1, characterized in that: A reinforcing ring body (22) is arranged between the T-shaped fastening connecting rod cap (21) and the fixing rod (23); a suspension chassis groove (101) is arranged at a middle position of the suspension chassis (10); the T-shaped fastening connecting rod cap (21) is of a rectangular structure, and the length of the T-shaped fastening connecting rod cap (21) is greater than the length of the suspension chassis groove (101); T-shaped fastening connecting rod cap limiting blocks (102) are arranged diagonally above the suspension chassis (10); the inner surface of the T-shaped fastening connecting rod cap limiting blocks (102) and the inner wall of the suspension chassis groove (101) are located in the same plane; the T-shaped fastening connecting rod cap limiting blocks (102) on one side are located at the rear side of one side of the T-shaped fastening connecting rod cap (21), and the T-shaped fastening connecting rod cap limiting blocks (102) on the other side are located at the front side of the other side of the T-shaped fastening connecting rod cap (21).

4. The quick-change self-locking suspension connecting rod assembly according to claim 1, characterized in that: An upper ring (31) is provided at the upper end of the drive unlocking sleeve (3), a lower ring (32) is provided below the upper ring (31), and the outer diameter of the lower ring (32) is smaller than the outer diameter of the upper ring (31), a drive unlocking sleeve countersunk hole (33) is provided inside the upper end of the upper ring (31), an inner hexagonal groove (34) is provided at the lower end of the upper ring (31) and inside the lower ring (32), and the nut of the hexagonal flange bolt (5) fits in the inner hexagonal groove (34).

5. A quick-change self-locking suspension connecting rod assembly according to claim 4, characterized in that: The lower end of the upper collar (31) is provided with a stop bevel tooth (35); the nut flange of the hexagonal flange bolt (5) and the inner wall of the countersunk hole (33) of the drive unlocking sleeve are provided with a compression spring (7); and the upper and lower ends of the compression spring (7) are respectively fitted with the lower end of the nut flange of the hexagonal flange bolt (5) and the inner wall of the countersunk hole (33) of the drive unlocking sleeve; a gasket (6) is provided between the upper end of the nut flange of the hexagonal flange bolt (5) and the floating mounting hole (12) of the equipment; and the upper and lower ends of the gasket (6) are respectively fitted with the upper end of the nut flange of the hexagonal flange bolt (5) and the inner wall of the countersunk hole (33) of the drive unlocking sleeve.

6. A quick-change self-locking suspension connecting rod assembly according to claim 5, characterized in that: The fixed self-locking tooth sleeve (4) is interference-fitted with the floating mounting hole (12) of the equipment; a driving unlocking sleeve groove (43) is provided inside the fixed self-locking tooth sleeve (4); and the inner diameter of the driving unlocking sleeve groove (43) is larger than the outer diameter of the lower sleeve ring (32); a self-locking helical tooth (41) is provided at the upper end of the fixed self-locking tooth sleeve (4); and the self-locking helical tooth (41) is meshed with the stop helical tooth (35); four limiting ribs (42) are provided in an outer ring at the lower end of the fixed self-locking tooth sleeve (4); and four limiting grooves (14) are provided in an outer ring at the lower end of the connecting through hole (13), and the limiting ribs (42) extend to the inside of the limiting grooves (14).

7. The quick-change self-locking suspension connecting rod assembly according to claim 1, characterized in that: The material of the anti-loosening fastening connection component outer sleeve (1) is aluminum or steel.

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