Anti-deformation pin

Abstract

The utility model discloses an anti-deformation pin which comprises a first pin section, a second pin section and an anti-bending section, the anti-bending section is located between the first pin section and the second pin section, the first pin section and the second pin section are fixedly connected to the two ends of the anti-bending section respectively, and the anti-bending section is made of high-bending-resistance materials. The bending resistance of the pin is improved through the bending resistance section with better bending resistance, and meanwhile, the whole pin does not need to be made of a high-bending-resistance material, so that the material cost is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pin technology field, more specifically relates to a kind of anti-deformation pin. BACKGROUND

[0002] In mechanical assembly, pin can be firmly connected together two or more parts, also can be used as positioning, also can be used as preventing part loosening in working process due to vibration and other reasons, such as the relative movement or rotation between two parts after inserting pin.

[0003] Traditional pin is opened with the hole matched with pin on the surface of part when assembling, then the pin is inserted into hole to connect or position, but, due to the operation of part, the stress of pin, will make pin produce deformation, the most common is that bending is generated between the contact surface between two parts, leading to part positioning inaccuracy, connection loosening etc., and the current traditional solution is to use pin made of higher strength and bending-resistant material, since the whole pin is made of the same material, so material cost is obviously increased.

[0004] Therefore, an effective anti-deformation pin is needed to reduce deformation and material cost of pin. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides an anti-deformation pin, which improves the bending resistance of the pin by the bending-resistant segment with better bending resistance, without using high-bending-resistant material for the whole pin, greatly saving material cost.

[0006] To achieve the above object, the utility model provides the following technical scheme: an anti-deformation pin, comprising a first pin segment, a second pin segment and a bending-resistant segment, the bending-resistant segment is located between the first pin segment and the second pin segment, the first pin segment and the second pin segment are fixedly connected to the two ends of the bending-resistant segment respectively, and the bending-resistant segment is made of high-bending-resistant material.

[0007] Further, a threaded rod is arranged on the first pin segment, a threaded through hole corresponding to the threaded rod is arranged on the bending-resistant segment, and a threaded blind hole corresponding to the threaded rod is arranged on the second pin segment.

[0008] Further, the outer side surfaces between the first pin segment, the second pin segment and the bending-resistant segment are welded together.

[0009] Further, first T-shaped grooves are arranged on the first pin segment and the second pin segment, second T-shaped grooves corresponding to the first T-shaped grooves are arranged at the two ends of the bending-resistant segment, the first T-shaped grooves and the second T-shaped grooves are spliced to form an I-shaped groove, and an I-shaped fixing block is arranged in the I-shaped groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are that: the pin is formed in a combined mode, the combined pin places the bending-resistant section at the connection of the two parts, so that the bending-resistant section with better bending resistance is used to improve the bending resistance of the pin, and meanwhile, the whole pin does not need to be made of high-bending-resistant material, so that the material cost is greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is an external connection structure schematic view of the anti-deformation pin of the utility model;

[0012] Figure 2 It is an internal connection structure schematic view of the anti-deformation pin of the utility model.

[0013] Reference signs: first pin section 1; second pin section 2; bending-resistant section 3; threaded rod 4; threaded through hole 5; threaded blind hole 6; welding groove 7; I-shaped groove 8; I-shaped fixed block 9. DETAILED DESCRIPTION

[0014] In the description of the utility model, it needs to be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0015] In addition, if the terms "first", "second" are used for the purpose of description only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.

[0016] REFERENCE Figure 1 and Figure 2 Further description of the utility model.

[0017] An anti-deformation pin, comprising a first pin section 1, a second pin section 2 and a bending-resistant section 3, the bending-resistant section 3 is located between the first pin section 1 and the second pin section 2, the first pin section 1 and the second pin section 2 are respectively fixedly connected to the two ends of the bending-resistant section 3, and the bending-resistant section 3 is made of high-bending-resistant material.

[0018] As Figure 1 andFigure 2 As shown, the combined pin places the bending-resistant section 3 at the connection of the two parts, thereby improving the bending resistance of the pin through the bending-resistant section 3 with better bending resistance, and without the need to make the entire pin from high-bending-resistant material, greatly saving material costs.

[0019] Specifically, the material of the bending-resistant section 3 can be alloy steel, hard alloy, titanium alloy, etc., and the materials of the first pin section 1 and the second pin section 2 can be selected according to the connection requirements, such as stainless steel, aluminum alloy, carbon steel, etc.

[0020] Specifically, the lengths of the first pin section 1, the second pin section 2, and the bending-resistant section 3 can be changed according to actual use conditions, such as when a long pin is used and the bending of the pin is long, the first pin section 1, the second pin section 2, and the bending-resistant section 3 are all lengthened, when a short pin is used and the bending of the pin is short, the lengths of the sections can be appropriately shortened, or the bending of the pin is not at the equal length position in the length direction, then the first pin section 1 and the second pin section 2 are appropriately lengthened or shortened.

[0021] Specifically, other structures can be provided at both ends of the pin to match different connection methods, such as a through hole, a pin head, etc. provided at the end of the pin, or an external thread provided on the pin to connect it as a bolt.

[0022] As shown, Figure 2 In the preferred embodiment of the present embodiment, a threaded rod 4 is provided on the first pin section 1, a threaded through hole 5 corresponding to the threaded rod 4 is provided on the bending-resistant section 3, and a threaded blind hole 6 corresponding to the threaded rod 4 is provided on the second pin section 2.

[0023] Specifically, when the first pin section 1 is threadedly connected, thread glue can be applied in the threaded rod 4 or the threaded through hole 5 and the threaded blind hole 6.

[0024] As shown, Figure 1 In the preferred embodiment of the present embodiment, the outer side surfaces between the first pin section 1, the second pin section 2, and the bending-resistant section 3 are welded together.

[0025] Specifically, the first pin section 1 is threadedly connected to the bending-resistant section 3 and the second pin section 2, the end surface of the first pin section 1 abuts against the bending-resistant section 3, the end surface of the second pin section 2 abuts against the bending-resistant section 3, then the outer side gap at the abutting position is welded, and the welding belt formed by welding is processed to be flat, so that the outer side surfaces of the first pin section 1, the second pin section 2, and the bending-resistant section 3 are smooth and free of burrs.

[0026] As shown, Figure 2As shown, specifically, a welding chamfer is arranged on the welding outer side of the first pin segment 1 and the bending-resistant segment 3, and a welding chamfer is arranged on the welding outer side of the second pin segment 2 and the bending-resistant segment 3, the two welding chamfers are combined to form a welding groove 7, and the welding strength is improved.

[0027] As shown, Figure 1 As shown, in the embodiment, preferably, the first pin segment 1 and the second pin segment 2 are both provided with a first T-shaped groove, both ends of the bending-resistant segment 3 are provided with a second T-shaped groove corresponding to the first T-shaped groove, the first T-shaped groove and the second T-shaped groove are spliced to form an I-shaped groove 8, and an I-shaped fixing block 9 is arranged in the I-shaped groove 8.

[0028] Specifically, before welding, the I-shaped fixing block 9 is inserted into the I-shaped groove 8, and the welding positions on both sides of the I-shaped fixing block 9 are welded with the first pin segment 1, the second pin segment 2 and the bending-resistant segment 3.

[0029] Specifically, the I-shaped fixing block 9 is in interference fit with the I-shaped groove 8.

[0030] Specifically, the I-shaped groove 8 is circumferentially provided with a plurality of I-shaped fixing blocks 9 on the pin.

[0031] The preferred embodiments of the utility model are described above, the protection scope of the utility model is not limited to the above-mentioned embodiments only, and any technical scheme under the idea of the utility model belongs to the protection scope of the utility model. It should be noted that, for ordinary skilled persons in the technical field, some improvements and decorations without departing from the principle of the utility model are also considered as the protection scope of the utility model.

Claims

1. An anti-deformation pin, characterized by: The application relates to a pin, which comprises a first pin section, a second pin section and a bending-resistant section, the bending-resistant section is located between the first pin section and the second pin section, the first pin section and the second pin section are fixedly connected to two ends of the bending-resistant section respectively, and the bending-resistant section is made of a high-bending-resistant material.

2. The anti-deformation pin according to claim 1, characterized in that: A threaded rod is arranged on the first pin section, a threaded through hole corresponding to the threaded rod is arranged on the bending-resistant section, and a threaded blind hole corresponding to the threaded rod is arranged on the second pin section.

3. The anti-deformation pin according to claim 1, characterized in that: The outer sides between the first pin section, the second pin section and the bending-resistant section are welded together.

4. The anti-deformation pin according to claim 1, characterized in that: First T-shaped grooves are arranged on the first pin section and the second pin section, second T-shaped grooves corresponding to the first T-shaped grooves are arranged at two ends of the bending-resistant section, the first T-shaped grooves and the second T-shaped grooves are spliced to form an I-shaped groove, and an I-shaped fixing block is arranged in the I-shaped groove.

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