Protective shell of nitrogen-oxygen sensor

Abstract

The utility model discloses a protective shell of a nitrogen-oxygen sensor, and belongs to the technical field of nitrogen-oxygen sensors. The nitrogen-oxygen sensor protective shell comprises a sensor body, a plug is inserted into a socket of the sensor body, the end portion of the plug is connected with a wire harness, the end portion of the wire harness is communicated with an inductive probe, the nitrogen-oxygen sensor protective shell further comprises a protective shell body fixedly connected under the sensor body, one side of the protective shell body is fixedly connected with a mounting plate, and the other side of the protective shell body is fixedly connected with the inductive probe. The surface of the mounting plate is rotationally connected with a winding mechanism; according to the utility model, under the cooperation of the protective shell, the mounting plate, the winding mechanism and the locking mechanism, the sensor body can be mounted and protected, and redundant wire harnesses are wound together, so that the redundant wire harnesses can be restrained, and the reliability of the sensor is improved. Therefore, the problem that the wire harness is too long and is easy to be mutually wound and bent for multiple degrees to be broken is avoided, and the operability of the protective shell is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen oxygen sensor technical field especially relates to a nitrogen oxygen sensor protection shell. BACKGROUND

[0002] With the improvement of people's environmental protection consciousness, the content of nitrogen oxides in the exhaust gas of motor vehicles such as automobiles and diesel engines has more stringent regulations.

[0003] In the prior art, the patent with Chinese patent publication number CN219871237U, application date: 2023-10-20, and name of a nitrogen oxygen sensor with foreign matter protection cover structure, relates to the technical field of sensor, which comprises a sensor body, a cable and a probe, one end of the cable is connected with a plug, the sensor body is provided with a socket matched with the plug, the other end of the cable is fixedly connected with the probe; the outer side of the sensor body is provided with a protective shell, the protective shell is provided with a clearance groove for accommodating the plug, the outer side of the protective shell is provided with a plurality of fastening bolts, the protective shell is provided with a first through hole for the fastening bolts to pass through, the outer side of the sensor body is provided with a fastening hole coinciding with the first through hole, the fastening bolt passes through the first through hole and is screwed into the fastening hole; the protective shell is provided, when the vehicle with the nitrogen oxygen sensor drives on a rugged road, the influence of gravel or other foreign matters on the sensor body is reduced, and the protection performance of the sensor body is improved.

[0004] However, the above-mentioned patent still has the problem that after the nitrogen oxygen sensor and the probe are installed, there are usually excess cables, which are generally placed directly in the frame without constraint, causing the excess cables to be prone to mutual entanglement, bending and breaking, further reducing the operability of the protective shell.

[0005] Therefore, in view of this problem, the utility model provides a nitrogen oxygen sensor protection shell. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the problems in the prior art and provides a nitrogen oxygen sensor protection shell.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides a nitrogen oxygen sensor protective housing, including the socket of sensor body, the plug of socket inserts, the end of plug is connected with wire harness, the end of wire harness is connected with the inductive probe, still include: the fixed connection of protective housing body below sensor body, one side of protective housing body is fixedly connected with mounting plate, the surface rotationally connected with winding mechanism of mounting plate, winding mechanism is used to winding of wire harness, the surface of protective housing body is fixedly connected with locking mechanism on winding mechanism one side, locking mechanism is used to locking of winding mechanism.

[0009] Preferably, the winding mechanism includes a hollow winding roller rotatably mounted on the surface of the mounting plate via a bearing, the end of the wire harness sequentially penetrates the hollow winding roller, the mounting plate and the protective housing body, the surface of the wire harness is wound on the surface of the hollow winding roller, and the surface of the hollow winding roller is fixedly connected with a ratchet and a limiting turntable, respectively.

[0010] Preferably, the locking mechanism includes a positioning rod fixed on the surface of the mounting plate, the surface of the positioning rod is rotationally connected with a ratchet rod, and the end of the ratchet rod is fitted in the ratchet teeth of the ratchet.

[0011] Preferably, the locking mechanism further includes a fixing block fixed on the surface of the mounting plate, the surface of the fixing block is fixedly connected with a supporting spring, and the end of the supporting spring is fixed on the ratchet rod.

[0012] Preferably, the surface of the mounting plate is fixedly connected with a fixing plate, the surface of the fixing plate is fixedly connected with an elastic sheet, one end of the elastic sheet is fixedly connected with a pressing plate, and the pressing plate is located on the side surface of the hollow winding roller.

[0013] Preferably, the shape of the pressing plate is semi-arc, and the surface of the pressing plate is fixedly connected with a rubber pad.

[0014] Preferably, a connecting cover is mounted on the top of the protective housing body, and the connecting cover is used to seal the top of the protective housing body.

[0015] Preferably, connecting ears are fixedly connected on both sides of the protective housing body, and mounting holes are formed in the surface of the connecting ears.

[0016] Compared with the prior art, the nitrogen oxygen sensor protective housing has the following beneficial effects:

[0017] The nitrogen oxygen sensor protective housing can install and protect the sensor body through the cooperation of the protective housing body, the mounting plate, the winding mechanism and the locking mechanism, and the excess wire harness is wound together. Through the setting of this way, the excess wire harness can be constrained, thereby avoiding the problem of easy mutual entanglement, bending and breaking of the wire harness due to excessive length, and further improving the operability of the protective housing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of the protective shell of the nitrogen-oxygen sensor Figure 1 ;

[0019] Figure 2 Structure diagram of the winding mechanism of the protective shell of the nitrogen-oxygen sensor

[0020] Figure 3 Structure diagram of the mounting plate and the locking mechanism of the protective shell of the nitrogen-oxygen sensor

[0021] Figure 4 Structure diagram of the mounting plate of the protective shell of the nitrogen-oxygen sensor

[0022] Figure 5 Structure diagram of the protective shell of the nitrogen-oxygen sensor Figure 2 .

[0023] In the figure: 1, sensor body; 11, plug; 12, wire harness; 13, sensing probe; 2, protective shell; 21, connecting cover; 22, connecting lug; 3, mounting plate; 31, fixed plate; 32, elastic sheet; 33, extrusion plate; 4, winding mechanism; 41, hollow winding roller; 42, ratchet wheel; 43, limiting turntable; 5, locking mechanism; 51, positioning rod; 52, ratchet rod; 53, fixed block; 54, supporting spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Embodiment 1: Refer to Figures 1-5The utility model discloses a nitrogen oxygen sensor protective shell, including sensor body 1, the socket of sensor body 1 is inserted with the plug 11, the end of plug 11 is connected with wire harness 12, wire harness 12's end is connected with the inductive probe 13, still including: the protective shell 2 of fixed connection in sensor body 1 right below, the one side fixed connection of protective shell 2 has installed board 3, the surface rotation of installed board 3 is connected with winding mechanism 4, winding mechanism 4 is used to winding wire harness 12, the surface of protective shell 2 is located winding mechanism 4 one side fixed connection has locking mechanism 5, locking mechanism 5 is used to locking winding mechanism 4, winding mechanism 4 includes the hollow winding roller 41 of rotation in installed board 3 surface through bearing, the end of wire harness 12 is in turn through hollow winding roller 41, installed board 3 and protective shell 2, and the surface of wire harness 12 is wound in hollow winding roller 41 surface, and the surface of hollow winding roller 41 is fixedly connected with ratchet wheel 42 and limit turntable 43 respectively, locking mechanism 5 includes the positioning rod 51 of fixed in installed board 3 surface, the surface rotation of positioning rod 51 is connected with ratchet rod 52, and the end of ratchet rod 52 is in the ratchet tooth of ratchet wheel 42 and is pasted, and locking mechanism 5 still includes the fixed block 53 of fixed in installed board 3 surface, and the surface fixed connection of fixed block 53 has support spring 54, and the end of support spring 54 is fixed on ratchet rod 52.

[0027] In the utility model, the sensor body 1 can be installed inside the protective shell 2, the sensor body 1 can be protected by the protective shell 2, then the plug 11 is inserted into the sensor body 1, and the wire harness 12 is inserted into the protective shell 2, the installed board 3 and the winding mechanism 4, and then connected to the end of the inductive probe 13. When the inductive probe 13 is connected to the automobile exhaust pipe, the winding mechanism 4 is rotated, the excess length of the wire harness 12 is wound together, avoiding the problem of excessive length of the wire harness 12 relaxing, winding and bending, and breaking. By rotating the limit turntable 43 at the end of the hollow winding roller 41, the wire harness 12 can be wound on the hollow winding roller 41. When the hollow winding roller 41 drives the ratchet wheel 42 to rotate clockwise, the locking mechanism 5 does not affect the normal rotation of the ratchet wheel 42. The ratchet rod 52 on the surface of the positioning rod 51 can be tightly fitted into the ratchet tooth of the ratchet wheel 42 for locking. By setting the limit turntable 43 fixed with the limit turntable 43, the spring force can be provided on the surface of the ratchet wheel 42 to tightly fit the ratchet rod 52 to the ratchet wheel 42 for locking. When the wire harness 12 needs to be extended, the ratchet rod 52 and the ratchet wheel 42 are separated, and the hollow winding roller 41 can be rotated in any direction.

[0028] It is supplemented that the wire harness 12 and the end of the inductive probe 13 are detachable, so that the end of the wire harness 12 can be inserted into the protective shell 2 and the hollow winding roller 41 in sequence.

[0029] Embodiment 2: refer to Figures 4-5With the embodiment 1 basically same, further more: the surface of the mounting plate 3 is fixedly connected with the fixed plate 31, the surface of the fixed plate 31 is fixedly connected with the elastic sheet 32, one end of the elastic sheet 32 is fixedly connected with the extrusion plate 33, the extrusion plate 33 is located at the side of the hollow winding roller 41, the shape of the extrusion plate 33 is semi-arc setting, the surface of the extrusion plate 33 is fixedly connected with the rubber pad, the top of the protective shell 2 is provided with the connecting cover 21, the connecting cover 21 is used to seal the top of the protective shell 2, both sides of the protective shell 2 are fixedly connected with the connecting lug 22, the surface of the connecting lug 22 is provided with the mounting hole.

[0030] In the utility model, the fixed plate 31 fixed on the mounting plate 3 is used to support the elastic sheet 32, then the elastic sheet 32 can provide spring force for the extrusion plate 33, so as to push the extrusion plate 33 to adhere to the wire harness 12 wound on the hollow winding roller 41 to extrude, prevent the wire harness 12 from being loose, the extrusion plate 33 is semi-arc setting, and can better adhere to the surface of the wire harness 12, and the rubber pad is set, and the abrasion on the surface of the wire harness 12 can be reduced, the connecting cover 21 is installed on the protective shell 2, and the top of the protective shell 2 can be sealed and protected, and the connecting lug 22 is set, and the bolt can be installed on the automobile support to be fixed.

[0031] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A nitrogen oxygen sensor protective shell, comprising a sensor body (1), a plug (11) is inserted at the socket of the sensor body (1), an end of the plug (11) is connected with a wire harness (12), an end of the wire harness (12) is connected with a sensing probe (13), characterized in that, Also include: The protective shell (2) is fixedly connected below the sensor body (1), one side of the protective shell (2) is fixedly connected with the mounting plate (3), the surface of the mounting plate (3) is rotatably connected with the winding mechanism (4), the winding mechanism (4) is used for winding the wire harness (12), the surface of the protective shell (2) is fixedly connected with the locking mechanism (5) on one side of the winding mechanism (4), the locking mechanism (5) is used for locking the winding mechanism (4).

2. A protective housing for a nitric oxide sensor as defined in claim 1, wherein The winding mechanism (4) comprises a hollow winding roller (41) rotatably arranged on the surface of the mounting plate (3) through a bearing, the end of the wire harness (12) penetrates the hollow winding roller (41), the mounting plate (3) and the protective shell (2) in sequence, the surface of the wire harness (12) is wound on the surface of the hollow winding roller (41), and the surface of the hollow winding roller (41) is fixedly connected with a ratchet (42) and a limiting turntable (43) respectively.

3. A protective housing for a nitrogen oxide sensor as defined in claim 1, characterized in that The locking mechanism (5) comprises a positioning rod (51) fixed on the surface of the mounting plate (3), the surface of the positioning rod (51) is rotatably connected with a ratchet rod (52), and the end of the ratchet rod (52) is fitted in the ratchet tooth of the ratchet (42).

4. The protective housing for a nitrogen oxide sensor according to claim 1, characterized in that The locking mechanism (5) further comprises a fixed block (53) fixed on the surface of the mounting plate (3), the surface of the fixed block (53) is fixedly connected with a supporting spring (54), and the end of the supporting spring (54) is fixed on the ratchet rod (52).

5. The protective housing for a nitrogen oxide sensor according to claim 1, characterized in that The surface of the mounting plate (3) is fixedly connected with a fixed plate (31), the surface of the fixed plate (31) is fixedly connected with an elastic sheet (32), one end of the elastic sheet (32) is fixedly connected with a pressing plate (33), and the pressing plate (33) is located on the side surface of the hollow winding roller (41).

6. A protective housing for a nitric oxide sensor as defined in claim 5, wherein The shape of the pressing plate (33) is semi-arc, and the surface of the pressing plate (33) is fixedly connected with a rubber pad.

7. The protective enclosure for a nitric oxide sensor of claim 1, wherein, The top of the protective shell (2) is provided with a connecting cover (21), and the connecting cover (21) is used for sealing the top of the protective shell (2).

8. The protective enclosure for a nitric oxide sensor of claim 1, wherein, Both sides of the protective shell (2) are fixedly connected with connecting ears (22), and the surface of the connecting ears (22) is provided with mounting holes.

Images