Oxygen sensor mounting structure

Abstract

The utility model relates to the field of oxygen sensors, and discloses an oxygen sensor installation structure which comprises an exhaust manifold, a body is arranged at the top end of the exhaust manifold, an installation assembly is arranged between the exhaust manifold and the body and comprises a positioning block and a fixing block, the positioning block is fixedly connected to the top end of the left portion of the exhaust manifold, and the fixing block is fixedly connected to the top end of the right portion of the exhaust manifold. A limiting groove is formed in the top end of the positioning block, the fixing block is fixedly connected to the middle of the outer wall of the body, a positioning rod is slidably connected to the front surface of the fixing block, and a limiting block is fixedly connected to the front surface of the positioning rod. According to the utility model, the oxygen sensor is inserted into the positioning block, so that the limiting block is clamped into the limiting groove, the oxygen sensor can be quickly mounted, the mounting is convenient, the oxygen sensor can be quickly dismounted by pulling the guide frame upwards to drive the connecting block and the limiting block to move inwards and slide out of the limiting groove, and the mounting and dismounting operation is convenient; the maintenance difficulty is reduced, and the maintenance efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen sensor field especially relates to an oxygen sensor mounting structure. BACKGROUND

[0002] Oxygen sensor as the key part in the electronic control system of automobile engine, mainly used for detecting the content of oxygen in exhaust, thereby feedback information to engine control unit, realizes the accurate control to engine air -fuel ratio, this has vital role to improve fuel economy, reduce exhaust emission.

[0003] At present, the common installation mode of automobile oxygen sensor is fixedly installed on the exhaust system of automobile through threaded connection, however the installation and dismounting process of threaded connection is more cumbersome, needs to use specific tool, and it is extremely inconvenient to operate in the narrow exhaust system space, needs to spend more time to tighten or unscrew the thread, increases the difficulty and time cost of maintenance and maintenance, reduces work efficiency, therefore the oxygen sensor mounting structure is provided to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above insufficient, the utility model provides an oxygen sensor mounting structure, aims at improving the problem of "unconvenient installation, reducing the efficiency of maintenance" in prior art.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: an oxygen sensor mounting structure, including exhaust manifold, the top of the exhaust manifold is provided with the body, the exhaust manifold is provided with the installation assembly between the body, the installation assembly includes locating block and fixed block, the locating block is fixedly connected at the left top of the exhaust manifold, the top of the locating block is provided with the limiting slot, the fixed block is fixedly connected in the middle part of the outer wall of the body, the front surface of the fixed block is slidably connected with the locating rod, the front surface of the locating rod is fixedly connected with the limiting block.

[0006] As a further description of the above technical scheme:

[0007] The limiting slot is provided with L shape, and the limiting block is provided with L shape and is clamped in the inner wall of the limiting slot.

[0008] As a further description of the above technical scheme:

[0009] The limiting block and the fixed block are elastically connected through the spring, one end of the spring is fixedly connected to the front surface of the fixed block, the other end of the spring is fixedly connected to the rear surface of the limiting block, and the spring is sleeved on the outer wall of the locating rod.

[0010] As a further description of the above technical scheme:

[0011] The top end of the limiting block is hingedly connected with a connecting block, and the top end of the connecting block is hingedly connected with a guide ring.

[0012] As a further description of the above technical solution:

[0013] The top end of the guide ring is fixedly connected with a guide frame.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the fixed block is provided with a sealing assembly, and the sealing assembly comprises a connecting ring fixedly connected to the bottom end of the fixed block.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the connecting ring is fixedly connected with a sealing ring, and the sealing ring is in the shape of a circular ring.

[0018] As a further description of the above technical solution:

[0019] The top end of the positioning block is provided with a sealing groove in the middle, and the sealing ring is clamped to the inner wall of the sealing groove.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, the oxygen sensor is inserted into the positioning block, the limiting block is clamped into the limiting groove, and the oxygen sensor can be quickly installed, which is convenient to install. The guide frame is pulled upward to drive the connecting block and the limiting block to move inward and slide out of the limiting groove, so that the installation and removal operation is convenient, the maintenance difficulty is reduced, and the maintenance efficiency is improved.

[0022] 2. In the utility model, the connecting ring and the sealing ring are fixedly arranged at the bottom end of the fixed block. The sealing ring is clamped into the sealing groove, and the sealing ring is made of rubber material and has softness and elasticity, so that the sealing property of the oxygen sensor installation connection is improved, and the use effect of the oxygen sensor is ensured. DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the exhaust manifold and the positioning block in the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed block, the body, the limiting block and the positioning block in the utility model.

[0026] LEGEND:

[0027] 1, exhaust manifold; 2, body; 3, connecting ring; 21, fixed block; 22, limiting block; 23, positioning block; 24, connecting block; 25, guide ring; 26, guide frame; 27, limiting groove; 28, spring; 29, positioning rod; 31, sealing ring; 32, sealing groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Referring to Figure 1 - Figure 3 An embodiment provided by the utility model: an oxygen sensor mounting structure, including an exhaust manifold 1 for the automobile to carry out exhaust, the top end of the exhaust manifold 1 is provided with a body 2, the body 2 is the main body of oxygen sensor, the exhaust manifold 1 and the body 2 are provided with installation assembly for the convenience maintenance between them, the installation assembly includes the positioning block 23 for providing installation and support and the fixed block 21 for supporting and installing the body 2, the positioning block 23 is fixedly connected at the left top end of the exhaust manifold 1, the top end of the positioning block 23 is provided with the limiting groove 27 for limiting the body 2, the fixed block 21 is fixedly connected at the middle part of the outer wall of the body 2, the front surface of the fixed block 21 is slidably connected with the positioning rod 29 for supporting the limiting block 22, the positioning rod 29 is provided with multiple groups of the limiting block 22 that can stably support, the rear surface of the positioning rod 29 is fixed with a disc that can limit the area of the positioning rod 29 movement, the front surface of the positioning rod 29 is fixedly connected with the limiting block 22 that is quickly limited in the limiting groove 27.

[0030] Further, the limiting groove 27 is provided as L shape, the limiting block 22 is provided as L shape and is connected in the inner wall of the limiting groove 27, the front surface bottom end of the limiting block 22 is provided as inclined plane, when installing, the limiting block 22 can be directly moved inwards by extruding the inclined plane and extruding the spring 28, then after the limiting block 22 is connected in the limiting groove 27, the limiting block 22 is quickly reset by the reverse force of the spring 28 being extruded, the convex part of the limiting block 22 is connected in the convex part of L shape in the limiting groove 27, then the limiting block 22 and the body 2 can be quickly installed and limited.

[0031] Referring to Figure 1 - Figure 3The limiting block 22 is elastically connected with the fixed block 21 through the spring 28, one end of the spring 28 is fixedly connected to the front surface of the fixed block 21, the other end of the spring 28 is fixedly connected to the rear surface of the limiting block 22, the spring 28 is sleeved on the outer wall of the positioning rod 29, through the reverse force of being extruded by the limiting block 22, the limiting block 22 can be quickly reset and clamped into the limiting groove 27, the top end of the limiting block 22 is hingedly connected with the connecting block 24 for driving the limiting block 22 to move inward and slide out of the limiting groove 27, the connecting block 24 is arranged in an inclined shape, the top end of the connecting block 24 is hingedly connected with the guide ring 25 for supporting the connecting block 24 and driving the rear end of the connecting block 24 to move upward, the guide ring 25 is slidingly connected to the outer wall of the body 2, the top end of the guide ring 25 is fixedly connected with the guide frame 26 for conveniently driving the guide ring 25 to move upward.

[0032] With reference to Figure 1 - Figure 3 The bottom end of the fixed block 21 is provided with a sealing assembly for improving the sealing performance, the sealing assembly comprises a connecting ring 3 for supporting a sealing ring 31, the connecting ring 3 is fixedly connected to the bottom end of the fixed block 21, the bottom end of the connecting ring 3 is fixedly connected with the sealing ring 31 made of rubber material and capable of being tightly clamped into a sealing groove 32 to increase the sealing performance, the sealing ring 31 is arranged in a circular ring shape and is clamped into the sealing groove 32, and the rubber material has flexibility to increase the tightness of the connection, the top end of the positioning block 23 is provided with the sealing groove 32 for providing an installation space for the sealing ring 31, and the sealing ring 31 is clamped to the inner wall of the sealing groove 32.

[0033] Working principle: when the oxygen sensor body 2 needs to be installed, first, the fixed block 21 on the body 2 is aligned with the positioning block 23 on the exhaust manifold 1, at this time, the positioning rod 29 and the limiting block 22 on the fixed block 21 are in the initial position, the front surface of the limiting block 22 is inclined, in the process of moving the body 2 downward to be close to the positioning block 23, the inclined surface of the limiting block 22 contacts and is extruded by the top end of the positioning block 23, so that the limiting block 22 overcomes the elastic force of the spring 28 and moves inward, and at the same time, the spring 28 is extruded, when the limiting block 22 is inserted into the limiting groove 27 after moving to be aligned with the limiting groove 27, the reverse force generated after the spring 28 is extruded makes the limiting block 22 quickly reset, so that the protruding part of the limiting block 22 is clamped into the L-shaped protruding part of the limiting groove 27, thereby realizing the quick installation and limiting of the body 2 on the positioning block 23, at this time, the multiple positioning rods 29 stably support the limiting block 22, and the disc on the rear surface of the positioning rod 29 limits the movement range of the positioning rod 29, thereby ensuring the stability of the installation.

[0034] When the oxygen sensor body 2 needs to be disassembled, the guide frame 26 is pulled upward, the guide ring 25 is slid upward along the outer wall of the body 2, and since the guide ring 25 is hinged to the connecting block 24, when the guide ring 25 moves upward, the rear end of the connecting block 24 is moved upward, the connecting block 24 is arranged in an inclined manner, the front end of the connecting block 24 is hinged to the top end of the limiting block 22, when the rear end of the connecting block 24 moves upward, the limiting block 22 is moved inward, the limiting block 22 is slid out of the convex part of the limiting groove 27, at this time, the limiting block 22 can be moved upward to completely separate from the limiting groove 27, and the body 2 can be removed from the exhaust manifold 1, which is convenient and fast.

[0035] When the body 2 is installed on the positioning block 23, the sealing ring 31 is clamped into the sealing groove 32 in the middle of the top end of the positioning block 23, since the rubber material of the sealing ring 31 is soft, after being clamped into the sealing groove 32, the sealing ring 31 can tightly fit the inner wall of the sealing groove 32, the tightness of the connection is increased, the sealing property between the exhaust manifold 1 and the body 2 is effectively improved, the exhaust gas leakage is prevented, and the oxygen sensor can accurately measure the oxygen content in the exhaust gas.

[0036] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An oxygen sensor mounting structure comprising an exhaust manifold (1), characterized by: The top end of the exhaust manifold (1) is provided with a body (2), an installation assembly is arranged between the exhaust manifold (1) and the body (2), the installation assembly comprises a positioning block (23) and a fixing block (21), the positioning block (23) is fixedly connected to the left top end of the exhaust manifold (1), a limiting groove (27) is formed in the top end of the positioning block (23), the fixing block (21) is fixedly connected to the middle of the outer wall of the body (2), a positioning rod (29) is slidably connected to the front surface of the fixing block (21), and a limiting block (22) is fixedly connected to the front surface of the positioning rod (29).

2. An oxygen sensor mounting structure according to claim 1, characterized by: The limiting groove (27) is in L shape, and the limiting block (22) is in L shape and is clamped on the inner wall of the limiting groove (27).

3. An oxygen sensor mounting structure according to claim 1, characterized by: The limiting block (22) and the fixing block (21) are elastically connected through a spring (28), one end of the spring (28) is fixedly connected to the front surface of the fixing block (21), the other end of the spring (28) is fixedly connected to the rear surface of the limiting block (22), and the spring (28) is sleeved on the outer wall of the positioning rod (29).

4. An oxygen sensor mounting structure according to claim 3, characterized in that: The top end of the limiting block (22) is hingedly connected with a connecting block (24), and the top end of the connecting block (24) is hingedly connected with a guide ring (25).

5. An oxygen sensor mounting structure according to claim 4, characterized in that: The guide ring (25) is slidably connected to the outer wall of the body (2), and the top end of the guide ring (25) is fixedly connected with a guide frame (26).

6. An oxygen sensor mounting structure according to claim 1, characterized by: The bottom end of the fixing block (21) is provided with a sealing assembly, the sealing assembly comprises a connecting ring (3), and the connecting ring (3) is fixedly connected to the bottom end of the fixing block (21).

7. An oxygen sensor mounting structure according to claim 6, characterized by: The bottom end of the connecting ring (3) is fixedly connected with a sealing ring (31), and the sealing ring (31) is in a circular ring shape.

8. An oxygen sensor mounting structure according to claim 7, characterized by: The top end of the positioning block (23) is provided with a sealing groove (32), and the sealing ring (31) is clamped on the inner wall of the sealing groove (32).

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