Wheel speed sensor convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of sensors, and provides a wheel speed sensor convenient to disassemble and assemble, which comprises a sensor body, a detection rod of the sensor body is provided with a clamping strip and a baffle ring, the clamping strip extends towards a probe along the axial direction of the detection rod, and the baffle ring is close to a wiring end; a through hole with a sliding groove and a clamping groove is formed in the base, the sliding groove penetrates through the through hole in the axial direction, and the clamping groove extends in the axial direction of the through hole and is staggered from the sliding groove; the elastic piece is sleeved on the detection rod, and one end of the elastic piece is in abutting connection with the baffle ring; the detection rod and the clamping strip of the sensor body are in sliding connection with the through hole and the sliding groove respectively, and the other end of the elastic piece is in abutting connection with the side, without the clamping groove, of the base. When the clamping strip completely penetrates through the sliding groove, the clamping strip can be aligned with the clamping groove through rotation of the sensor body and is inserted into the clamping groove under the action of reset force of the compressed elastic piece so that positioning installation of the sensor body can be achieved. Through cooperative use of the through hole with the sliding groove and the clamping groove and the elastic piece, disassembly and assembly of the sensor body can be rapidly achieved, and maintenance is convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field, concretely relates to a wheel speed sensor convenient to dismount. BACKGROUND

[0002] Wheel speed sensor is used to measure the sensor of automobile wheel speed. For modern car, wheel speed information is indispensable, and wheel speed information is needed for automobile dynamic control system VDC, automobile electronic stability program ESP, anti -lock braking system ABS, the control system of automatic transmission etc. So wheel speed sensor is one of the most critical sensors in modern car.

[0003] At present, the wheel speed sensor adopts the mode of bolt connection and is fixedly installed at the wheel, and the fixed installation mode is not conducive to the dismounting of the wheel speed sensor during maintenance, that is, the bolt is relatively cumbersome to dismount, and the maintenance efficiency is easily affected. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a wheel speed sensor convenient to dismount to solve the problem that the wheel speed sensor is fixedly installed at the wheel by the mode of bolt connection, the fixed installation mode is not conducive to the dismounting of the wheel speed sensor during maintenance, that is, the bolt is relatively cumbersome to dismount, and the maintenance efficiency is easily affected.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A wheel speed sensor convenient to dismount, comprising:

[0007] A sensor body, a clamping strip and a blocking ring are arranged on the detection rod of the sensor body, the clamping strip extends axially along the detection rod towards the probe, and the blocking ring is close to the wiring end;

[0008] A base, a through hole with a sliding groove and a clamping groove is arranged on the base, the sliding groove penetrates the through hole axially, and the clamping groove extends axially along the through hole and is arranged staggered with the sliding groove; and

[0009] An elastic member is sleeved on the detection rod of the sensor body, one end of the elastic member is in abutting connection with the blocking ring;

[0010] Wherein, the detection rod and the clamping strip of the sensor body are respectively in sliding connection with the through hole and the sliding groove, the other end of the elastic member is in abutting connection with one side of the base without the clamping groove, when the clamping strip completely penetrates the sliding groove, the clamping strip can be aligned with the clamping groove through the rotation of the sensor body and inserted into the clamping groove under the reset force of the compressed elastic member to realize the positioning installation of the sensor body.

[0011] Optionally, the card strip and the sliding slot correspond to each other, and each is provided with a pair of and spaced 180 degrees apart from each other.

[0012] The card slot is provided with at least a pair of and spaced 180 degrees apart from each other.

[0013] Optionally, the card slot is arranged with multiple pairs of equal angles, and the depths are sequentially increased or decreased.

[0014] Optionally, the card slot 212 is arranged with three pairs of equal angles.

[0015] Optionally, the side of the blocking ring towards the base is provided with a first annular groove coaxial with the detection rod;

[0016] The side of the base without the card slot is provided with a second annular groove concentric with the through hole;

[0017] The elastic member is connected with the first annular groove and the second annular groove at both ends.

[0018] Optionally, the elastic member is a spring.

[0019] Optionally, it further comprises a locking member threadedly connected with the top surface of the base, and the locking member has a telescopic locking pin.

[0020] The detection rod is provided with a lock hole corresponding to the card slot;

[0021] The locking pin can be inserted into the lock hole after extending into the through hole, and is used for locking the sensor body.

[0022] Optionally, the locking member is a knob plunger.

[0023] Optionally, the knob plunger is a convex pin locking type knob plunger.

[0024] Optionally, the base has a bottom plate, and the bottom plate is connected with the wheel to install the wheel speed sensor on the wheel.

[0025] Compared with the prior art, the utility model has the beneficial effects that:

[0026] 1. Through the cooperation of the through hole with the sliding slot and the card slot and the elastic member, the sensor body can be quickly disassembled and assembled, the structure is simple, the maintenance is facilitated, and the maintenance efficiency is improved.

[0027] 2. By inserting the card strip into the card slot with different depths, the air gap (distance) between the probe of the sensor body detection rod and the signal wheel can be adjusted, so that the probe has the best detection distance, and the accuracy of the wheel speed data detection is improved.

[0028] 3, through the lock pin of locking piece inserts into the lock hole, can improve the stability of sensor body after installation, prevent the influence of wheel wobble to the air gap (distance) between probe and signal wheel, further guarantee the accuracy of wheel speed data detection. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0031] Figure 2 It is a schematic diagram of the main section structure of the utility model;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of the sensor body;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the base Figure 1 ;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the base Figure 2 . DETAILED DESCRIPTION

[0035] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are considered to be exemplary in nature rather than limiting.

[0036] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present application.

[0041] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0042] Referring to Figures 1-5 As shown in the drawings, the present application provides a wheel speed sensor convenient to disassemble, which comprises:

[0043] The sensor body 100 is provided with a clamping strip 110 and a blocking ring 120 on the detection rod, the clamping strip 110 extends along the axial direction of the detection rod to the probe, and the blocking ring 120 is close to the terminal 130;

[0044] The base 200 is provided with a through hole 210 with a sliding groove 211 and a clamping groove 212, the sliding groove 211 penetrates the through hole 210 from the shaft, the clamping groove 212 extends along the through hole 210 and is arranged staggered with the sliding groove 211; and

[0045] The elastic member 300 is sleeved on the detection rod of the sensor body 100, and one end thereof is in abutting connection with the stop ring 120.

[0046] The detection rod of the sensor body 100 and the clamping strip 110 are respectively in sliding connection with the through hole 210 and the sliding groove 211, and the other end of the elastic member 300 is in abutting connection with one side of the base 200 without the clamping groove 212; when the clamping strip 110 completely passes through the sliding groove 211, the clamping strip 110 can be aligned with the clamping groove 212 through the rotation of the sensor body 100 and is inserted into the clamping groove 212 under the resetting force of the compressed elastic member 300 to realize the positioning installation of the sensor body 100.

[0047] During installation, the probe of the detection rod of the sensor body 100 is inserted into the through hole 210 from one side of the base 200 without the clamping groove 212 and the clamping strip 110 is slid through the sliding groove 211, and the elastic member 300 is compressed; at this time, under the rotation limiting brought by the sliding cooperation between the clamping strip 110 and the sliding groove 211, the sensor body 100 can be rotated by a predetermined angle (i.e. the corresponding central angle between the sliding groove 211 and the clamping groove 212), so that the clamping strip 110 is aligned with the clamping groove 212, and the detection rod of the sensor body 100 is reversely moved in the through hole 210 under the resetting force of the compressed elastic member 300, and the clamping strip 110 is inserted into the clamping groove 212 to be limited, thereby realizing the positioning installation of the sensor body 100; during disassembly, the sensor body 100 is pushed to make the clamping strip 110 disengage from the clamping groove 212, and then the sensor body 100 is reversely rotated and the clamping strip 110 is aligned with the sliding groove 211, at this time, the sensor body 100 is loosened and can be dismounted from the base 200 under the resetting force of the elastic member 300. That is to say, through the cooperation of the through hole 210 with the sliding groove 211 and the clamping groove 212 and the elastic member 300, the sensor body 100 can be quickly dismounted and mounted, the structure is simple, the maintenance is facilitated, and the maintenance efficiency can be improved.

[0048] Referring to FIGS. 1 and 2, Figure 4 and Figure 5 As shown, the clamping strip 110 corresponds to the sliding groove 211 one by one, and each of them is provided with a pair of and spaced 180° from each other; the clamping groove 212 is provided with at least a pair of and spaced 180° from each other. In this way, the stability of the sensor body 100 after positioning installation can be improved.

[0049] Multiple pairs of slots 212 are arranged at equal angles (i.e., central angles, such as 45°), and their depths increase or decrease sequentially (when facing the side of the base 200 with slots 212, the depths of the multiple pairs of slots 212 increase sequentially counterclockwise around the circumference of the through hole 210 or decrease sequentially clockwise around the circumference of the through hole 210). By inserting the locking strip 110 into slots 212 of different depths, the air gap (distance) between the probe of the sensor body 100 detection rod and the signal wheel (not shown in the figure) can be adjusted, thereby ensuring that the probe has the optimal detection distance and thus improving the accuracy of wheel speed data detection.

[0050] In this embodiment, three pairs of card slots 212 are arranged at included angles.

[0051] To prevent the elastic element 300 from tilting when compressed and to ensure that the restoring force of the elastic element 300 is fully applied to the side of the base 200 without the slot 212, the retaining ring 120 has a first annular groove 121 coaxial with the detection rod on the side facing the base 200, and a second annular groove 220 concentric with the through hole 210 on the side of the base 200 without the slot 212. The two ends of the elastic element 300 are respectively engaged and connected to the first annular groove 121 and the second annular groove 220.

[0052] In this embodiment, the elastic element 300 is preferably a spring. Springs are standard parts, easy to procure, and relatively inexpensive.

[0053] See Figure 1 and Figure 2 As shown, the aforementioned easy-to-assemble and disassemble wheel speed sensor also includes a locking member 400 threadedly connected to the top surface of the base 200. The locking member 400 has a retractable locking pin 410. A locking hole 140 is provided on the detection rod, corresponding one-to-one with the slot 212. The locking pin 410 extends into the through hole 210 and can be inserted into the locking hole 140 to lock the sensor body 100. During disassembly, pulling the locking pin 410 of the locking member 400 outwards will release it from the locking hole 140. The insertion of the locking pin 410 of the locking member 400 into the locking hole 140 improves the stability of the sensor body 100 after installation, preventing wheel wobbling from affecting the air gap (distance) between the probe and the signal wheel, further ensuring the accuracy of wheel speed data detection.

[0054] In this embodiment, the locking element 400 is preferably a knob plunger. Further, the knob plunger is preferably a pin-locking type knob plunger. Pulling the knob outward and rotating it 90° allows the pin to be pulled out of the locking hole 140 and held in the retracted state, thus eliminating the need to hold the knob continuously and reducing labor intensity during maintenance. After maintenance, when reinstalling the sensor body 100, rotating the knob 90° again causes the pin to pop out due to the built-in spring and insert into the locking hole 140.

[0055] The base 200 has a base plate 230 that is connected to a wheel (not shown) to mount the wheel speed sensor to the wheel.

[0056] The above embodiments are only preferred embodiments of the present application, and are not intended to limit the technical solutions of the present application. Any technical solutions that can be realized on the basis of the above embodiments without creative labor should be considered to fall within the protection scope of the present application.

Claims

1. A wheel speed sensor that is easy to disassemble, characterized by, The utility model relates to a wheel speed sensor convenient to dismount, which comprises a sensor body, a detection rod, a clamping strip and a blocking ring, the clamping strip extends axially along the detection rod towards a probe, and the blocking ring is close to a terminal; a base, a through hole with a sliding groove and a clamping groove is formed on the base, the sliding groove penetrates the through hole axially, and the clamping groove extends axially along the through hole and is arranged staggeredly with the sliding groove; and a resilient member, which is sleeved on the detection rod of the sensor body, is in abutting connection with the blocking ring at one end; wherein the detection rod of the sensor body and the clamping strip are in sliding connection with the through hole and the sliding groove respectively, and the other end of the resilient member is in abutting connection with one side of the base without the clamping groove; when the clamping strip passes through the sliding groove completely, the clamping strip can be aligned with the clamping groove through rotation of the sensor body and inserted into the clamping groove under the resetting force of the compressed resilient member to realize positioning and installation of the sensor body.

2. The wheel speed sensor convenient to dismount according to claim 1, wherein: the clamping strip and the sliding groove are in one-to-one correspondence, each of which is provided with a pair of clamping strips and sliding grooves and spaced 180 degrees apart from each other; the clamping groove is provided with at least one pair of clamping grooves and spaced 180 degrees apart from each other. The clamping grooves are arranged in multiple pairs at equal angles, and the depths of the clamping grooves are increased or decreased in turn.

3. The wheel speed sensor of claim 2, wherein, The clamping grooves (212) are arranged in three pairs at equal angles.

4. The wheel speed sensor of claim 3, wherein, 5. The wheel speed sensor convenient to dismount according to any one of claims 1-4, wherein: a first annular groove coaxial with the detection rod is formed on one side of the blocking ring facing the base; a second annular groove concentric with the through hole is formed on one side of the base without the clamping groove; the resilient member is in clamping connection with the first annular groove and the second annular groove at both ends respectively. The resilient member is a spring.

6. The wheel speed sensor of claim 5, wherein, 7. The wheel speed sensor convenient to dismount according to claim 1 or 6, wherein: further comprising a locking member in threaded connection with the top surface of the base, the locking member having a retractable locking pin; a lock hole is formed on the detection rod, the lock hole corresponding to the clamping groove one by one; the locking pin can be inserted into the lock hole after extending into the through hole, used for locking the sensor body. The locking member is a knob plunger.

8. The wheel speed sensor of claim 7, wherein, The knob plunger is a convex pin locking type knob plunger.

9. The wheel speed sensor of easy assembly and disassembly according to claim 8, wherein, The base has a bottom plate, the bottom plate is connected with a wheel to install the wheel speed sensor on the wheel.

10. The wheel speed sensor of claim 7, wherein, ​

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