Clamp for fixing wire harness of automobile post-processing device

Abstract

The utility model discloses a clamp for fixing a wire harness of an automobile post-processing device. The clamp comprises a strap, a bracket and a hooping structure, the bracket is fixedly arranged on the surface of the strap; an annular mounting structure is arranged on the bracket and / or a fixing hole is formed in the bracket; the hooping structure is fixedly mounted on the strap, and the hooping structure is configured to be capable of opening and closing the strap or adjusting the inner diameter of the strap. According to the clamp, the heat insulation layer of the automobile post-processing device can be fixed, and meanwhile the function of fixing wire harnesses outside the automobile post-processing device can be achieved by welding the support provided with the U-shaped structure and the fixing holes.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and more particularly to a clamp for fixing the wiring harness of an automotive aftertreatment device. Background Technology

[0002] In automotive aftertreatment systems, diesel particulate filters (DPFs) and diesel oxidation catalysts (DOCs) are cylindrical in shape. These cylinders contain various sensors on their inner surface, requiring numerous wiring harnesses to be secured to the outside. However, the large size and high temperature of the DPF and DOC cylinders make it impossible to directly secure the wiring harnesses to the outer surface with cable ties.

[0003] If the wiring harness is fixed, various brackets need to be welded to the outside of the DPF and DOC cylinder. However, welding the brackets also requires additional welding clamps for fixation. In addition, when the outside of the cylinder is wrapped with a heat insulation layer, the cylinder with welded brackets cannot cover the heat insulation layer well.

[0004] Therefore, considering the aforementioned technical problems, it is necessary to provide a new technical solution. Utility Model Content

[0005] To at least solve one of the technical problems existing in the prior art, this utility model provides a clamp for fixing the wiring harness of an automotive aftertreatment device. This clamp not only secures the heat insulation layer of the automotive aftertreatment device but also secures the wiring harness outside the device, greatly facilitating practical operation. The specific technical solution is as follows:

[0006] On the one hand, this utility model provides a clamp for fixing the wiring harness of an automotive aftertreatment device, which includes a clamp strap, a bracket and a clamping structure;

[0007] The bracket is fixedly mounted on the surface of the hoop, and the bracket is provided with an annular mounting structure and / or the bracket is provided with fixing holes;

[0008] The clamping structure is fixedly installed on the clamp, and the clamping structure is configured to open and close the clamp or adjust the inner diameter of the clamp.

[0009] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, the clamping structure includes a T-bolt, a sleeve, and a nut;

[0010] Both ends of the hoop are fixedly provided with connecting ears, and through holes are opened on the connecting ears. A T-bolt is fitted inside one connecting ear, and a sleeve is fitted inside the other connecting ear.

[0011] The sleeve has a through hole, through which the threaded part of the T-bolt passes through the sleeve, and the nut is threaded onto the T-bolt.

[0012] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, the T-bolt includes a T-shaped head and a threaded part, the T-shaped head is accommodated in one of the connecting lugs, and the threaded part extends outward from the through hole;

[0013] The sleeve includes an installation part and a through-hole. The through-hole is provided on the through-hole. The installation part is fitted into another connecting lug. The through-hole extends outward from the through-hole. The screw part is fitted into the through-hole and extends outward. The nut is threaded onto the screw part.

[0014] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, the bracket has a U-shaped structure, and welding plates are provided at both ends of the bracket. The bracket is welded to the surface of the clamp through the welding plates.

[0015] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, the U-shaped bottom of the bracket has a fixing hole.

[0016] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, one or more brackets are provided along the circumferential surface or part of the surface of the clamp.

[0017] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, the clamp has multiple supports evenly spaced along its circumferential surface or part of its surface.

[0018] As a preferred embodiment of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this utility model, the bracket is spot welded to the surface of the clamp.

[0019] Compared with the prior art, the technical solution of this utility model has at least one or more of the following beneficial effects:

[0020] This patented clamp secures the heat insulation layer to the cylindrical body of an automotive aftertreatment device, such as a diesel particulate filter (DPF) or a diesel oxidation catalyst (DOC). By welding a bracket with a U-shaped structure and fixing holes, the wiring harness from the automotive aftertreatment device can be fixed to the cylinder body using cable ties or P-clips. Simultaneously, due to the U-shaped structure, the wiring harness does not directly contact the cylinder body, preventing damage to the wiring harness from overheating.

[0021] This patent fixes the wire harness by welding brackets onto the clamp, avoiding the need to weld brackets onto the DPF or DOC cylinder. Welding brackets directly onto the DPF or DOC cylinder not only requires additional welding clamps for fixation, which is inconvenient to operate; in addition, if brackets are welded to the outside of the DPF or DOC cylinder, it is also inconvenient to cover the cylinder with a heat insulation layer, affecting its performance.

[0022] The clamp in this patent is tightened by T-bolts, sleeves and nuts, making it flexible and convenient to operate.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an exploded structural diagram of the clamp for fixing the wiring harness of the automotive aftertreatment device described in this patent;

[0026] Figure 2 This is a three-dimensional structural diagram of the clamp for fixing the wiring harness of the automotive aftertreatment device as described in this patent.

[0027] Among them, 1-hoop, 2-bracket, 3-T-bolt, 4-sleeve, 5-nut, 11-connecting ear, 12-through hole, 21-fixing hole, 22-welding piece, 31-T-head, 32-screw part, 41-mounting part, 42-through sleeve part, 43-through sleeve through hole. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "provided with," "equipped with," "connected," "installed," "sleeved," "opened," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0032] Please refer to Figure 1-2 .like Figure 1-2 As shown, this utility model provides a clamp for fixing the wiring harness of an automotive aftertreatment device. The clamp is mainly used to fix the heat insulation layer of the automotive aftertreatment device. While fixing the heat insulation layer, it can also provide a fixing bracket for the wiring harness outside the automotive aftertreatment device. The clamp includes a clamp band 1, a bracket 2, and a clamping structure.

[0033] The bracket 2 is fixedly mounted on the surface of the hoop 1, and the bracket 2 is provided with an annular mounting structure and / or the bracket 2 is provided with a fixing hole 21.

[0034] The clamping structure is fixedly installed on the clamp 1, and the clamping structure is configured to open and close the clamp 1 or adjust the inner diameter of the clamp 1.

[0035] In a preferred embodiment, such as Figure 1-2 As shown, the bracket 2 has a U-shaped structure. Both ends of the bracket 2 are provided with welding pieces 22 that fit against the surface of the hoop 1. The bracket 2 is welded to the surface of the hoop 1 via these welding pieces. The U-shaped structure is a ring-shaped installation structure. In this example, a fixing hole 21 is provided at the bottom of the U-shape of the bracket 2. However, this patent is not limited to this; the hole can also be located on the side of the U-shaped bracket, with the bottom of the U-shape being a preferred option. In this example, the bracket 2 is spot-welded to the surface of the hoop 1 via the welding pieces 22.

[0036] Preferably, one or more supports 2 are provided along the circumferential surface or part of the surface of the hoop 1. More preferably, multiple supports 2 are provided at equal intervals along the circumferential surface or part of the surface of the hoop 1. In the example, multiple supports 2 are provided at equal intervals along a part of the circumferential surface of the hoop 1. Of course, the number of supports 2 can be determined according to actual needs, and the supports 2 can be set at any position on the surface of the hoop as needed.

[0037] This patented clamp secures the heat insulation layer to the cylindrical body of an automotive aftertreatment device, such as a diesel particulate filter (DPF) or a diesel oxidation catalyst (DOC). By welding a bracket with a U-shaped structure and fixing holes, the wiring harness from the automotive aftertreatment device can be fixed to the cylinder body using cable ties or P-clips. Simultaneously, due to the U-shaped structure, the wiring harness does not directly contact the cylinder body, preventing damage to the wiring harness from overheating.

[0038] This patent fixes the wire harness by welding brackets onto the clamp, avoiding the need to weld brackets onto the DPF or DOC cylinder. Welding brackets directly onto the DPF or DOC cylinder not only requires additional welding clamps for fixation, which is inconvenient to operate; in addition, if brackets are welded to the outside of the DPF or DOC cylinder, it is also inconvenient to cover the cylinder with a heat insulation layer, affecting its performance.

[0039] In a preferred embodiment, such as Figure 1-2 As shown, the clamping structure includes a T-bolt 3, a sleeve 4, and a nut 5;

[0040] Both ends of the hoop 1 are fixedly provided with connecting ears 11. The connecting ears are conventional technology and will not be described in detail in this patent. The connecting ears 11 are provided with through holes 12. One connecting ear 11 is fitted with a T-bolt 3, and the other connecting ear 11 is fitted with a sleeve 4.

[0041] The sleeve 4 has a through hole 43, the threaded part of the T-bolt 3 passes through the sleeve 4 through the through hole 43, and the nut 5 is threaded onto the T-bolt 3.

[0042] Preferably, the T-bolt 3 includes a T-head 31 and a threaded portion 32, the T-head 31 being housed in one of the connecting lugs 11, and the threaded portion 32 extending outward from the through hole 12;

[0043] The sleeve 4 includes an installation part 41 and a through part 42. The through part 42 has a through hole 43. The installation part 41 is fitted into another connecting lug 11. The through part 42 extends outward from the through hole 12. The screw part 32 is fitted into the through hole 43 and extends outward. The nut 5 is threaded onto the screw part 32. The nut 5 is located on the side of the sleeve 4 away from the T-head 31.

[0044] In the example, the T-head 31 and the threaded part 32 of the T-bolt 3 are arranged perpendicularly, and the mounting part 41 and the sleeve part 42 of the sleeve 4 are arranged perpendicularly.

[0045] The clamp in this patent is tightened by T-bolts, sleeves and nuts, making it flexible and convenient to operate.

[0046] It should be noted that, unless otherwise specified, all features in the above embodiments or embodiments described herein can be combined arbitrarily.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "yet another embodiment," "another embodiment," "other embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. A clamp for securing a harness of an automotive aftertreatment device, the clamp comprising: It includes a band (1), a support (2) and a tightening structure; The support (2) is fixedly arranged on the surface of the band (1), and the support (2) is provided with an annular mounting structure and / or a fixing hole (21) formed in the support (2); The tightening structure is fixedly mounted on the band (1), and the tightening structure is configured to open and close the band (1) or adjust the inner diameter of the band (1).

2. The clasp for securing a wire harness of an automotive after-treatment device of claim 1, wherein, The tightening structure includes a T-shaped bolt (3), a sleeve (4) and a nut (5); Both ends of the band (1) are fixedly provided with connecting ears (11), and the connecting ears (11) are provided with through holes (12); one of the connecting ears (11) is sleeved with the T-shaped bolt (3), and the other connecting ear (11) is sleeved with the sleeve (4); The sleeve (4) is provided with a through sleeve through hole (43), the screw rod of the T-shaped bolt (3) penetrates the sleeve (4) through the through sleeve through hole (43), and the nut (5) is threadedly installed on the T-shaped bolt (3).

3. The clasp for securing a wire harness of an automotive after-treatment device of claim 2, wherein, The T-shaped bolt (3) includes a T-shaped head (31) and a screw rod (32), the T-shaped head (31) is accommodated in one of the connecting ears (11), and the screw rod (32) extends outward from the through hole (12); The sleeve (4) includes a mounting portion (41) and a sleeve portion (42), the sleeve portion (42) is provided with a through sleeve through hole (43), the mounting portion (41) is sleeved in the other connecting ear (11), the sleeve portion (42) extends outward from the through hole (12), the screw rod (32) is sleeved in the through sleeve through hole (43) and extends outward, and the nut (5) is threadedly installed on the screw rod (32).

4. The clasp for securing a wire harness of an automotive after-treatment device of claim 1, wherein, The support (2) is in a U-shaped structure, both ends of the support (2) are provided with welding pieces, and the support (2) is welded to the surface of the band (1) through the welding pieces.

5. The clasp for securing a wire harness of an automotive after-treatment device of claim 1, wherein, The U-shaped bottom of the support (2) is provided with a fixing hole (21).

6. The clasp for securing a wire harness of an automotive after-treatment device of claim 1, wherein, The band (1) is provided with one or more supports (2) along the circumferential surface or part of the surface.

7. The clasp for securing a wire harness of an automotive after-treatment device of claim 6, wherein, The band (1) is provided with a plurality of supports (2) along the circumferential surface or part of the surface at equal intervals.

8. The clasp for securing a wire harness of an automotive after-treatment device of claim 1, wherein, The support (2) is spot-welded to the surface of the band (1).

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