Mounting bracket for front oxygen sensor of engine

Abstract

The utility model relates to the technical field of automobile engine parts, in particular to an engine front oxygen sensor mounting bracket which comprises a bracket body, the bracket body comprises a front section, a middle section and a rear section, the front section is fixedly connected with an engine through bolts, and a front oxygen sensor is fixed to the rear section, so that the temperature of the environment near the front oxygen sensor is reduced, and the safety of the engine is improved. The limiting mechanism comprises a threaded rod, a clamping block assembly and a limiting assembly, the threaded rod is rotationally connected with the clamping block assembly, the front oxygen sensor is arranged on the clamping block assembly, and the front oxygen sensor is clamped by the clamping block assembly by screwing the threaded rod so that the fixing effect can be achieved; by means of the arrangement, the bolt can be prevented from making direct contact with the front oxygen sensor, the clamping block assembly is slidably installed on the top of the rear section of the support, the limiting assembly is fixedly installed on the lower portion of the rear section of the support, after the front oxygen sensor is clamped by the clamping block, the clamping block assembly is limited through the limiting assembly, and therefore the better fixing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine parts, in particular to a mounting bracket for a front oxygen sensor of an engine. Background Art

[0002] The maximum power of an engine equipped with a turbocharger can be increased by 40% or even higher compared to a naturally aspirated engine. However, after being supercharged, the pressure and temperature of the engine during operation are greatly increased, so the engine life will be shorter than that of an engine of the same displacement that has not been supercharged, and its ambient temperature will also be much higher. Usually, the exhaust manifold temperature is above 1000℃, and the turbine end temperature of the turbocharger is above 800℃. These two heat sources cause the ambient temperature to be very high, so it is easy to damage the front oxygen sensor in such an environment, seriously affecting its service life. In addition, the disassembly and assembly of the front oxygen sensor is relatively complicated and needs to be fixed with bolts, which can easily cause damage to the front oxygen sensor.

[0003] Therefore, in view of the shortcomings of the above scheme in actual production and implementation, it is revised and improved. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the utility model is created, and an engine front oxygen sensor mounting bracket is provided to solve the problem. Utility Model Content

[0004] The utility model aims to provide a mounting bracket for an engine front oxygen sensor to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An engine front oxygen sensor mounting bracket is provided, comprising a bracket, a limiting mechanism is fixedly connected to the bracket, and the bracket comprises a front section, a middle section and a rear section;

[0007] The limiting mechanism includes a threaded rod, a clamping block assembly and a limiting assembly, the threaded rod is rotatably connected to the clamping block assembly, the clamping block assembly is slidably installed on the top of the rear section of the bracket, and the limiting assembly is fixedly installed on the lower part of the rear section of the bracket.

[0008] Furthermore, a bolt connection hole is provided in the front section of the bracket, the middle section of the bracket is arc-shaped, and the rear section of the bracket is an overall rectangular structure.

[0009] Furthermore, a limiting groove is provided at the rear section of the bracket, sliding grooves are provided on both sides of the limiting groove, both ends of the threaded rod are rotatably installed in the limiting groove, and the clamping block assembly is slidably installed in the limiting groove.

[0010] Furthermore, the clamping block assembly includes two clamping blocks, both sides of which are provided with sliders, the lower end of the clamping block is provided with a threaded hole, the threaded rod cooperates with the threaded hole, the slider is slidably installed in the slide groove, the two sides of the upper end of the clamping block are arc structures, and the lower end of the clamping block is provided with a hemispherical groove.

[0011] Furthermore, a rectangular block is symmetrically provided at the lower part of the rear section of the bracket, a connecting hole is provided on the rectangular block, a limiting assembly is fixedly installed in the connecting hole, the rectangular block is provided on both sides of the limiting groove, and a wiring harness hole is provided on both sides of the rear section.

[0012] Furthermore, the limiting assembly includes a spring and a hemispherical block, one end of the spring is fixedly installed at the bottom of the connecting hole, and the other end of the spring is fixedly connected to the hemispherical block.

[0013] After using the above technical solution, the beneficial effects of the utility model are:

[0014] In the utility model, a bracket is provided including a front section, a middle section and a rear section, the front section is fixedly connected to the engine by bolts, and the front oxygen sensor is fixed to the rear section, so as to reduce the temperature of the environment near the front oxygen sensor and extend the service life of the front oxygen sensor. The limiting mechanism includes a threaded rod, a clamping block assembly and a limiting assembly. The threaded rod is rotatably connected to the clamping block assembly, and the front oxygen sensor is placed on the clamping block assembly. By tightening the threaded rod, the front oxygen sensor is clamped by the clamping block assembly to achieve a fixing effect. Such a setting can prevent the bolts from directly contacting the front oxygen sensor. The clamping block assembly is slidably installed on the top of the rear section of the bracket, and the limiting assembly is fixedly installed on the lower part of the rear section of the bracket. After the current oxygen sensor is clamped by the clamping block, the clamping block assembly is limited by the action of the limiting assembly, thereby achieving a better fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the bracket of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the limiting mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the clamping block of the utility model;

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Bracket; 11. Front section; 111. Bolt connection hole; 12. Middle section; 13. Rear section; 131. Limiting groove; 132. Slide groove; 133. Rectangular block; 134. Connection hole; 135. Harness hole;

[0021] 2. Limiting mechanism; 21. Threaded rod; 22. Clamping block assembly; 221. Clamping block; 222. Sliding block; 223. Threaded hole; 224. Hemispherical groove; 23. Limiting assembly; 231. Spring; 232. Hemispherical block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 and 3 As shown, the engine front oxygen sensor mounting bracket is characterized in that: it includes a bracket 1, a limiting mechanism 2 is fixedly connected to the bracket 1, and the bracket 1 includes a front section 11, a middle section 12 and a rear section 13;

[0024] The limiting mechanism 2 includes a threaded rod 21, a clamping block assembly 22 and a limiting assembly 23. The threaded rod 21 is rotatably connected to the clamping block assembly 22. The clamping block assembly 22 is slidably installed on the top of the rear section 13 of the bracket 1. The limiting assembly 23 is fixedly installed on the lower part of the rear section 13 of the bracket 1.

[0025] By setting the bracket 1 to include a front section 11, a middle section 12 and a rear section 13, the front section 11 is fixedly connected to the engine by bolts, and the front oxygen sensor is fixed to the rear section 13, so as to reduce the temperature of the environment near the front oxygen sensor and extend the service life of the front oxygen sensor. The limiting mechanism 2 includes a threaded rod 21, a clamping block assembly 22 and a limiting assembly 23. The threaded rod 21 is rotatably connected to the clamping block assembly 22, and the front oxygen sensor is placed on the clamping block assembly 22. By tightening the threaded rod 21, the front oxygen sensor is clamped by the clamping block assembly 22 to achieve a fixing effect. This arrangement can avoid direct contact between the bolts and the front oxygen sensor. The clamping block assembly 22 is slidably installed on the top of the rear section 13 of the bracket 1, and the limiting assembly 23 is fixedly installed on the lower part of the rear section 13 of the bracket 1. After the current oxygen sensor is clamped by the clamping block 221, the clamping block assembly 22 is limited by the action of the limiting assembly 23, thereby achieving a better fixing effect.

[0026] Reference Figure 2 As shown, the front section 11 of the bracket 1 is provided with a bolt connection hole 111 , the middle section 12 of the bracket 1 is in an arc shape, and the rear section 13 of the bracket 1 is in a rectangular structure as a whole.

[0027] By setting the middle section 12 of the bracket 1 to be arc-shaped and the rear section 13 of the bracket 1 to be an overall rectangular structure, the clamping block assembly 22 is fixed on the rear section 13. When the front oxygen sensor is clamped by the clamping block assembly 22, the position is more stable. The front oxygen sensor is fixed to the rear section 13, so that it is farther away from the engine, so that the ambient temperature around it is lower, thereby extending its service life.

[0028] The rear section 13 of the bracket 1 is provided with a limiting groove 131 , and two sides of the limiting groove 131 are provided with sliding grooves 132 . Both ends of the threaded rod 21 are rotatably installed in the limiting groove 131 , and the clamping block assembly 22 is slidably installed in the limiting groove 131 .

[0029] By arranging the two ends of the threaded rod 21 to be rotatably installed in the limiting groove 131, the clamping block assembly 22 is slidably installed in the limiting groove 131, so that when the threaded rod 21 rotates, the clamping block assembly 22 is driven to work, thereby clamping the front oxygen sensor.

[0030] Reference Figure 4 As shown, the clamping block assembly 22 includes two clamping blocks 221, and sliders 222 are provided on both sides of the two clamping blocks 221. A threaded hole 223 is opened at the lower end of the clamping block 221, and the threaded rod 21 cooperates with the threaded hole 223. The slider 222 is slidably installed in the slide groove 132. The two sides of the upper end of the clamping block 221 are arc structures, and a hemispherical groove 224 is opened at the lower end of the clamping block 221.

[0031] A threaded hole 223 is provided at the lower end of the clamping block 221, and the threaded rod 21 cooperates with the threaded hole 223. By rotating the threaded rod 21, the two clamping blocks 221 are brought closer to each other, thereby achieving the effect of clamping the front oxygen sensor. The operation is simple, and the slider 222 is slidably installed in the slide groove 132, so that the moving direction of the clamping block 221 is more stable. The two sides of the upper end of the clamping block 221 are arc structures, and a hemispherical groove 224 is provided at the lower end of the clamping block 221.

[0032] A rectangular block 133 is symmetrically provided at the lower part of the rear section 13 of the bracket 1. A connecting hole 134 is provided on the rectangular block 133. The limiting assembly 23 is fixedly installed in the connecting hole 134. The rectangular block 133 is provided on both sides of the limiting groove 131. A wiring harness hole 135 is provided on both sides of the rear section 13.

[0033] The limiting component 23 is fixedly installed in the connecting hole 134. When the clamping block 221 moves to the position corresponding to the connecting hole 134, the limiting component 23 acts to fix the clamping block 221 at the position. The rectangular block 133 is arranged on both sides of the limiting groove 131. The two sides of the rear section 13 are provided with wiring harness holes 135. The wires are passed through the wiring harness holes 135 to make the wire arrangement more neat.

[0034] The limiting assembly 23 includes a spring 231 and a hemispherical block 232 . One end of the spring 231 is fixedly mounted on the bottom of the connecting hole 134 , and the other end of the spring 231 is fixedly connected to the hemispherical block 232 .

[0035] One end of the spring 231 is fixedly installed at the bottom of the connecting hole 134 , and the other end of the spring 231 is fixedly connected to the hemispherical block 232 . The hemispherical block 232 is embedded in the hemispherical groove 224 through the action of the spring 231 , thereby achieving the effect of fixing the clamping block 221 .

[0036] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Engine front oxygen sensor mounting bracket, characterized by: It comprises a bracket (1), to which a limiting mechanism (2) is fixedly connected, and the bracket (1) comprises a front section (11), a middle section (12) and a rear section (13); The limiting mechanism (2) comprises a threaded rod (21), a clamping block assembly (22) and a limiting assembly (23); the threaded rod (21) is rotatably connected to the clamping block assembly (22); the clamping block assembly (22) is slidably mounted on the top of the rear section (13) of the bracket (1); and the limiting assembly (23) is fixedly mounted on the lower part of the rear section (13) of the bracket (1).

2. The engine front oxygen sensor mounting bracket according to claim 1, characterized in that: The front section (11) of the bracket (1) is provided with a bolt connection hole (111), the middle section (12) of the bracket (1) is arc-shaped, and the rear section (13) of the bracket (1) is an overall rectangular structure.

3. The engine front oxygen sensor mounting bracket according to claim 2, characterized in that: The rear section (13) of the bracket (1) is provided with a limiting groove (131), and sliding grooves (132) are provided on both sides of the limiting groove (131). Both ends of the threaded rod (21) are rotatably installed in the limiting groove (131), and the clamping block assembly (22) is slidably installed in the limiting groove (131).

4. The engine front oxygen sensor mounting bracket according to claim 3, characterized in that: The clamping block assembly (22) comprises two clamping blocks (221), and slide blocks (222) are provided on both sides of the two clamping blocks (221). A threaded hole (223) is provided at the lower end of the clamping block (221), and the threaded rod (21) cooperates with the threaded hole (223). The slide block (222) is slidably installed in the slide groove (132). Both sides of the upper end of the clamping block (221) are arc-shaped structures, and a hemispherical groove (224) is provided at the lower end of the clamping block (221).

5. The engine front oxygen sensor mounting bracket according to claim 4, characterized in that: A rectangular block (133) is symmetrically provided at the lower part of the rear section (13) of the bracket (1), a connecting hole (134) is provided on the rectangular block (133), a limiting assembly (23) is fixedly installed in the connecting hole (134), the rectangular block (133) is arranged on both sides of the limiting groove (131), and a wiring harness hole (135) is provided on both sides of the rear section (13).

6. The engine front oxygen sensor mounting bracket according to claim 5, characterized in that: The limiting assembly (23) comprises a spring (231) and a hemispherical block (232), one end of the spring (231) is fixedly mounted on the bottom of the connecting hole (134), and the other end of the spring (231) is fixedly connected to the hemispherical block (232).

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