Portable mounting and demounting of a steering gear clamp structure

Abstract

This utility model relates to the field of automotive steering system technology, specifically a portable and removable steering gear clamp structure. It includes a clamp body, a guide tongue, a guide structure, and a lug clamping structure. The clamp body has a guide tongue at its rear end, and several outwardly protruding ratchet teeth are located on the outer surface of the clamp body near the rear end. The head surface of the clamp body has a groove that matches the ratchet teeth. The outer surface of the clamp body has an outwardly protruding guide structure and a lug clamping structure near the head end, with the lug clamping structure located between the groove and the guide structure. Compared with existing technologies, this utility model improves clamping reliability by using a lug clamping structure to resist deformation and by locking the ratchet teeth with the groove. The guide tongue and guide structure work together to prevent misalignment, enabling convenient installation and removal of the steering gear clamp. The structure of this utility model has high versatility and can be applied to all steering gears.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering system technology, specifically a portable and removable steering gear large clamp structure. Background Technology

[0002] In automotive steering systems, dust covers serve as critical sealing elements, secured to the ports of the steering gear housing by large clamps to prevent dust and moisture from entering the transmission mechanism.

[0003] Traditional clamps mainly employ two structural types: bolt-fastened and elastic clasp-fastened. Bolted clamps achieve a seal by tightening the metal strip with a screw. This method requires multiple tightening operations with a wrench, making it inconvenient to operate in confined chassis spaces, and the bolts are prone to corrosion, leading to difficult disassembly. Elastic clasp-fastened clamps rely on the elastic contraction force of the metal strip itself for locking. While convenient to install, they suffer from the fatal flaw of clamping force decreasing rapidly with material fatigue.

[0004] Therefore, it is necessary to design a large clamp structure for the steering gear to facilitate loading and unloading while improving the reliability of clamping and preventing deviation. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a steering gear large clamp structure that facilitates loading and unloading while improving clamping reliability and preventing deviation.

[0006] To achieve the above objectives, this utility model provides a portable and removable steering gear clamp structure, comprising a clamp body, a guide tongue, a guide structure, and a lug clamping structure. The clamp body has a guide tongue at its tail end, and the outer surface of the clamp body near the tail end has several outwardly protruding ratchet teeth. The head surface of the clamp body has a groove that matches the ratchet teeth. The outer surface of the clamp body near the head end has an outwardly protruding guide structure and a lug clamping structure, with the lug clamping structure located between the groove and the guide structure.

[0007] The ratchet engages in the corresponding slot, the guide tongue is inserted into the guide structure, and the head and tail of the clamp body overlap to form a ring shape.

[0008] The clamp body, guide tongue, guide structure, lug clamping structure, and ratchet are an integral structure.

[0009] The aforementioned lug clamping structure includes a top surface and a clamping surface. The top surface protrudes from the clamping body, and an elliptical stamped reinforcing rib is provided at the center of the top surface. The two ends of the top surface are respectively connected to a vertically arranged clamping surface, and the root of the clamping surface has a chamfered structure.

[0010] The spacing between the clamping surfaces is 10mm, the diameter of the chamfered structure is 0.8mm, and the stamping depth of the elliptical stamped reinforcing rib is 1.4mm.

[0011] The guide structure includes a guide side, a guide arc, and a recessed connector. An outwardly protruding guide arc is provided between the two guide sides. One end of the guide side near the lug clamping structure is connected to the clamp body by a recessed connector. The other end of the guide side is directly connected to the clamp body. A space for accommodating the guide tongue is formed between the guide side and the guide arc.

[0012] The spacing between the guide sides is 1.9 mm, and the width of the guide arc is 3.2 mm.

[0013] The ratchet includes barbed teeth and punching teeth, with the barbed teeth and at least two punching teeth arranged in sequence, and the height of the barbed teeth being greater than the height of the punching teeth.

[0014] The clamp body has a width of 7mm and a thickness of 0.8mm. The clamp body is circular with an inner diameter of 68mm and a guide tongue with a width of 2.9mm.

[0015] Compared with existing technologies, this invention uses a lug clamping structure to resist deformation, and a ratchet and groove to achieve locking, improving clamping reliability. The guide tongue and guide structure work together to prevent misalignment, enabling convenient installation and removal of the steering gear's large clamp. The structure of this invention has high versatility and can be applied to all steering gears. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the present invention in its flattened state.

[0018] Figure 3 This is a schematic diagram of the lug clamping structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the guiding structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the ratchet and groove connection of this utility model.

[0021] Figure 6 This is a schematic diagram of the ratchet structure of this utility model.

[0022] Figure 7 This is a schematic diagram showing the usage state of this utility model.

[0023] Figure 8 This is a schematic diagram of the clamping state of this utility model. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] See Figure 1 , Figure 2 This utility model is a portable and removable steering gear large clamp structure, including a clamp body, a guide tongue, a guide structure, and a lug clamping structure. The rear end of the clamp body 26 is provided with a guide tongue 21. The outer surface of the clamp body 26 near the rear end is provided with a plurality of outwardly protruding ratchet teeth 22. The head surface of the clamp body 26 has a groove 24 that matches the ratchet teeth 22. The outer surface of the clamp body 26 near the head end is provided with an outwardly protruding guide structure 25 and a lug clamping structure 23, and the lug clamping structure 23 is located between the groove 24 and the guide structure 25.

[0026] See Figure 5 The ratchet 22 engages in the corresponding slot 24, the guide tongue 21 is inserted into the guide structure 25, and the head and tail of the clamp body 26 overlap to form a ring shape.

[0027] The clamp body 26, guide tongue 21, guide structure 25, lug clamping structure 23, and ratchet 22 are an integral structure.

[0028] See Figure 3 The lug clamping structure 23 includes a top surface 231 and a clamping surface 232. The top surface 231 protrudes from the clamping body 26. An elliptical stamped reinforcing rib 234 is provided at the center of the top surface 231. The two ends of the top surface 231 are respectively connected to a vertically arranged clamping surface 232. The root of the clamping surface 232 has a chamfered structure 233.

[0029] The spacing between the clamping surfaces 232 is 10mm, the diameter of the chamfered structure 233 is 0.8mm, and the stamping depth of the elliptical stamping reinforcing rib 234 is 1.4mm.

[0030] See Figure 4 The guide structure 25 includes a guide side 251, a guide arc 252, and a recessed connector 253. The guide arc 252 protrudes outward between the two guide sides 251. One end of the guide side 251 near the lug clamping structure 23 is connected to the clamp body 26 by the recessed connector 253, so that the guide side 251 is recessed by 0.8mm. The other end of the guide side 251 is directly connected to the clamp body 26. A space for accommodating the guide tongue 21 is formed between the guide side 251 and the guide arc 252. The guide side 251 prevents the guide tongue 21 from moving axially, and the guide arc 252 restricts the radial movement of the guide tongue 21.

[0031] The spacing between the guide sides 251 is 1.9mm, and the width of the guide arc 252 is 3.2mm.

[0032] See Figure 6The ratchet 22 includes a barbed tooth 221 and a punching tooth 222. The barbed tooth 221 and at least two punching teeth 222 are arranged in sequence. The height of the barbed tooth 221 is greater than the height of the punching tooth 222. The barb height of the barbed tooth 221 is 0.8 mm, and the punching depth of the punching tooth 222 is 1 mm.

[0033] The clamp body 2 has a width of 7mm and a thickness of 0.8mm. The inner diameter of the clamp body 2 is 68mm, which is circular. The guide tongue 21 has a width of 2.9mm.

[0034] See Figure 7 When the clamping gun clamps the root of the clamping surface 232 of the lug clamping structure 23, because the top surface 231 has an elliptical stamped reinforcing rib 234, its top rigidity is higher and it is not easily deformed, while the root of the clamping surface 232 is weaker and contracts inward. Figure 8 As shown, this reduces the inner diameter of the large clamp 2, securing the dust cover 1 to the port of the steering gear housing 3. During clamping, the slender guide tongue 21 moves along a predetermined trajectory within the space formed between the guide side 251 and the guide arc 252, preventing axial displacement of the entire clamp during clamping. The ratchet 22, during clamping, restricts the rightward movement of the head of the clamp body 26. The first ratchet 22 is a barbed tooth 221 that hooks into the groove 24 that mates with the head of the clamp body 26, limiting the arching of the head of the clamp body 26. Subsequent stamping teeth 222 engage with their corresponding grooves one by one, evenly distributing the locking stress and preventing excessive load on the barbed teeth 221, thus preventing plastic deformation.

[0035] When it is necessary to replace the dust cover 1 and remove the large clamp 2, simply bend the barb at the upper end of the barb 221 backward to remove the large clamp 2. Compared with the structure where the clamp head is welded, disassembly is much easier.

[0036] This invention utilizes a lug-type clamping structure to resist deformation, and a ratchet and groove for locking, improving clamping reliability. Combined with a guide tongue and guide structure, it prevents misalignment, enabling convenient installation and removal of the steering gear's large clamp. The structure of this invention has high versatility and can be applied to all steering gears.

Claims

1. A portable and removable steering gear clamp structure, comprising a clamp body, a guide tongue, a guide structure, and a lug clamping structure, characterized in that: The clamp body (26) has a guide tongue (21) at its tail end, and several outwardly protruding ratchet teeth (22) on the outer surface of the clamp body (26) near the tail end. The head surface of the clamp body (26) has a groove (24) that matches the ratchet teeth (22). The outer surface of the clamp body (26) near the head end has an outwardly protruding guide structure (25) and a lug clamping structure (23), and the lug clamping structure (23) is located between the groove (24) and the guide structure (25). The ratchet (22) is inserted into the corresponding groove (24), the guide tongue (21) is inserted into the guide structure (25), and the head and tail of the clamp body (26) overlap to form a ring shape.

2. The portable and removable steering gear clamp structure according to claim 1, characterized in that: The clamp body (26), guide tongue (21), guide structure (25), lug clamping structure (23), and ratchet (22) are an integral structure.

3. The portable and removable steering gear large clamp structure according to claim 1, characterized in that: The lug clamping structure (23) includes a top surface (231) and a clamping surface (232). The top surface (231) protrudes from the clamping body (26). An elliptical stamped reinforcing rib (234) is provided at the center of the top surface (231). The two ends of the top surface (231) are respectively connected to a vertically arranged clamping surface (232). The root of the clamping surface (232) has a chamfered structure (233).

4. The portable and removable steering gear large clamp structure according to claim 3, characterized in that: The spacing between the clamping surfaces (232) is 10 mm, the diameter of the chamfered structure (233) is 0.8 mm, and the stamping depth of the elliptical stamped reinforcing rib (234) is 1.4 mm.

5. The portable and removable steering gear large clamp structure according to claim 1, characterized in that: The guide structure (25) includes a guide side (251), a guide arc (252), and a recessed connector (253). The guide arc (252) protrudes outward between the two guide sides (251). The end of the guide side (251) near the lug clamping structure (23) is connected to the clamp body (26) by the recessed connector (253). The other end of the guide side (251) is directly connected to the clamp body (26). A space for accommodating the guide tongue (21) is formed between the guide side (251) and the guide arc (252).

6. The portable and removable steering gear large clamp structure according to claim 5, characterized in that: The spacing between the guide sides (251) is 1.9 mm, and the width of the guide arc (252) is 3.2 mm.

7. The portable and removable steering gear large clamp structure according to claim 1, characterized in that: The ratchet (22) includes a barbed tooth (221) and a punching tooth (222). The barbed tooth (221) and at least two punching teeth (222) are arranged in sequence, and the height of the barbed tooth (221) is greater than the height of the punching tooth (222).

8. The portable and removable steering gear large clamp structure according to claim 1, characterized in that: The clamp body (2) has a width of 7mm and a thickness of 0.8mm. The clamp body (2) is annular with an inner diameter of 68mm and the guide tongue (21) has a width of 2.9mm.

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