CN210850092U - Tool for assembling and disassembling oxygen sensor - Google Patents
Tool for assembling and disassembling oxygen sensor Download PDFInfo
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- CN210850092U CN210850092U CN201921640205.0U CN201921640205U CN210850092U CN 210850092 U CN210850092 U CN 210850092U CN 201921640205 U CN201921640205 U CN 201921640205U CN 210850092 U CN210850092 U CN 210850092U
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Abstract
The utility model relates to a tool for dismouting oxygen sensor, including the application of force portion (1) that is used for connecting application of force instrument (5), be used for screwing up the portion of screwing up (3) of oxygen sensor, and be located application of force portion (1) with hollow barrel (2) between the portion of screwing up (3), the portion of screwing up (3) are constructed as the first cylinder that extends along the axis of hollow barrel (2), are formed with in this first cylinder along the first through-hole (31) that the axis extends, and the cross sectional shape of this first through-hole (31) is constructed and is waited the cross sectional outline phase-match of the portion of applying force of oxygen sensor be provided with on the lateral wall of hollow barrel (2) along the axis direction extends and runs through opening (4) of the lateral wall of the portion of screwing up (3). According to above-mentioned technical scheme, the dismantlement/installation oxygen sensor that this instrument for dismouting oxygen sensor that this disclosure provided can be quick avoids damaging the oxygen sensor simultaneously.
Description
Technical Field
The disclosure relates to the field of engine manufacturing, in particular to a tool for assembling and disassembling an oxygen sensor.
Background
In the automobile manufacturing industry, the middle part of the oxygen sensor on the engine is formed with the external screw thread, at first stretch into the engine with the sensing element of oxygen sensor, then through this thread connection in the corresponding position of engine, thereby realize oxygen sensor's installation, however, oxygen sensor's structural strength is low, be damaged by external force easily, and the mounted position space is narrow and small, the outside of the portion of waiting to exert force of some oxygen sensor still the spacer sleeve is equipped with thermal-insulated sleeve, all do not do benefit to the use of instruments such as ordinary spanner, the dismouting difficulty of oxygen sensor has been increased, generally need skilled workman to concentrate on the attention and operate slowly, work efficiency is reduced, labor cost is improved.
SUMMERY OF THE UTILITY MODEL
It is an object of the present disclosure to provide a tool for tightening an oxygen sensor that can quickly remove/install the oxygen sensor while avoiding damage to the oxygen sensor.
In order to achieve the above object, the present disclosure provides a tool for disassembling and assembling an oxygen sensor, including a force application portion for connecting a force application tool, a tightening portion for tightening the oxygen sensor, and a hollow cylinder located between the force application portion and the tightening portion, the tightening portion is configured as a first cylinder extending along an axis of the hollow cylinder, a first through hole extending along the axis is formed in the first cylinder, a cross-sectional shape of the first through hole is configured to match a cross-sectional outer contour of the portion to be forced of the oxygen sensor, and an opening extending along the axis and penetrating through a side wall of the tightening portion is provided on a side wall of the hollow cylinder.
Optionally, the cross-sectional shape of the first through hole is a hollow regular twelve pointed star, and each interior angle is 120 degrees.
Optionally, the first through hole is coaxial with the hollow cylinder, and an end wall of the first through hole axially circumscribes an end of the hollow cylinder.
Optionally, the opening comprises a first opening section located on a side wall of the tightening part and a second opening section located on a side wall of the hollow cylinder, a width of the first opening section being smaller than a width of the second opening section in the circumferential direction.
Optionally, the first open section is in smooth transition with the second open section.
Optionally, the outer surface of the tightening part and the outer surface of the hollow cylinder are on the same revolution surface.
Optionally, the force application part is configured as a second cylinder extending in the axis direction, and a square through hole extending in the axis direction is formed in the second cylinder and is matched with the square bulge on the force application tool in shape.
Optionally, a circular through hole perpendicular to the square through hole is provided on the side wall of the second cylinder, and the circular through hole can accommodate an extendable/retractable spherical protrusion provided on the side surface of the square protrusion.
Optionally, an annular groove is provided on an outer side wall of the second cylinder, and the circular through hole is provided in the annular groove.
Optionally, the outer surface of the force application portion and the outer surface of the hollow cylinder are located on the same revolution surface.
Through the technical scheme, the lead wire on the oxygen sensor can be dodged to the opening, make screwing up the portion and can overlap outside locating the lead wire, and towards oxygen sensor treat the application of force portion motion, thereby shape-fitted cup joints in oxygen sensor treat the application of force portion outside, oxygen sensor treat that application of force portion shape matching holds in first through-hole, can circumference between the two is spacing, apply the revolving force in application of force portion through application of force instrument, it can drive oxygen sensor synchronous revolution to screw up the portion, thereby realize oxygen sensor's dismantlement/installation, and, based on first through-hole and oxygen sensor treat that shape phase-match between the application of force portion, can avoid this assembly and disassembly tools to rock in radial direction, bruise holds the oxygen sensor in the cavity barrel. Therefore, the tool for disassembling and assembling the oxygen sensor can quickly disassemble/assemble the oxygen sensor and avoid damaging the oxygen sensor.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a front view of a tool for disassembling and assembling an oxygen sensor provided in accordance with an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a right side view of a tool for disassembling and assembling an oxygen sensor provided in accordance with an embodiment of the present disclosure;
FIG. 5 is a top view of a tool for disassembling and assembling an oxygen sensor provided in accordance with an embodiment of the present disclosure;
FIG. 6 is a front view of a force application tool provided in accordance with an embodiment of the present disclosure;
FIG. 7 is a right side view of a force applying tool provided in accordance with an embodiment of the present disclosure.
Description of the reference numerals
1-force application part, 11-square through hole, 12-round through hole, 13-annular groove,
2-hollow cylinder, 21-inner surface, 3-tightening part, 31-first through hole,
4-opening, 41-first opening section, 42-second opening section,
5-force application tool, 51-square bulge, 52-spherical bulge and 53-handle.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, in the case where no reverse explanation is made, the use of the directional words such as "inside and outside" is inside and outside with respect to the self-profile of the counterpart, for example, both side end surfaces are outside and the first through hole is inside with respect to the tightening portion. The terms "first," "second," and the like as used herein are intended to distinguish one element from another, and are not necessarily sequential or significant. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.
The present disclosure provides a tool for mounting and dismounting an oxygen sensor, as shown in fig. 1 to 5, comprising a force application part 1 for connecting a force application tool 5, a tightening part 3 for tightening the oxygen sensor, and a hollow cylinder 2 located between the force application part 1 and the tightening part 3, wherein the tightening part 3 is configured as a first cylinder extending along an axis of the hollow cylinder 2, a first through hole 31 extending along the axis is formed in the first cylinder, the cross-sectional shape of the first through hole 31 is configured to match with the cross-sectional outer contour of the force application part to be applied of the oxygen sensor, and an opening 4 extending along the axis direction and penetrating through the side wall of the tightening part 3 is provided on the side wall of the hollow cylinder 2.
Through the technical scheme, opening 4 can dodge the lead wire on the oxygen sensor, make screwing up portion 3 and can overlap outside locating the lead wire, and towards the oxygen sensor treat the application of force portion motion, thereby shape complex cup joints in the oxygen sensor treat the application of force portion outside, oxygen sensor treat that application of force portion shape matches hold in first through-hole 31, can circumference between the two is spacing, apply the revolving force in application of force portion 1 through application of force instrument 5, screwing up portion 3 can drive oxygen sensor synchronous revolution, thereby realize oxygen sensor's dismantlement/installation, and, based on first through-hole 31 and oxygen sensor treat that the shape phase-match between the application of force portion, can avoid this assembly and disassembly tools to rock in radial direction, bruise holds the oxygen sensor in hollow cylinder 2. Therefore, the tool for disassembling and assembling the oxygen sensor can quickly disassemble/assemble the oxygen sensor and simultaneously avoid damaging the oxygen sensor.
Here, it should be noted that the shape matching means that the first through hole 31 and the portion to be urged of the oxygen sensor can be fitted to each other and at least a part of the shapes can be fitted to each other to be restricted in the circumferential direction. When the tightening part 3 is close to the force application part to be applied of the oxygen sensor, the tightening part 3 is rotated to correspond to the force application part to be applied of the oxygen sensor, namely, the shape matching parts of the tightening part and the force application part are corresponding in the axial direction, so that the tightening part 3 can be continuously moved in the axial direction to be sleeved on the force application part to be applied of the oxygen sensor, and then the tool is rotated to drive the oxygen sensor to synchronously rotate. In addition, when the heat insulation sleeve is further sleeved outside the to-be-applied part of the oxygen sensor at intervals, the outer diameter of the first cylinder is smaller than the inner diameter of the heat insulation sleeve of the oxygen sensor, so that the tightening part 3 can extend into the space between the heat insulation sleeve and the to-be-applied part.
The general configuration of the force application part of the oxygen sensor is a regular hexagonal prism structure, and then the cross-sectional shape of the force application part of the oxygen sensor is a regular hexagon, and in the present disclosure, as shown in fig. 1 and 2, the cross-sectional shape of the first through hole 31 may be a hollow regular twelve-pointed star, and each interior angle is 120 degrees. Like this, this interior angle is 120 degrees hollow regular twelve star, six interior apex angles of even interval connect gradually and can form into regular hexagon, thereby with oxygen sensor treat that the application of force portion shape matches, and there are two sets of six interior apex angles of even interval in this hollow regular twelve star, so make 3 cup joints in the in-process of the portion of treating the application of force of oxygen sensor of portion of screwing up, with arbitrary a set of even interval six interior apex angle shape cooperation can, like this, make its and oxygen sensor treat the in-process that the angle of the portion of applying force is corresponding at rotatory portion of screwing up 3, can reduce the time that realizes this correspondence, reduce the operation degree of difficulty, improve production efficiency, simultaneously can also reduce the probability that corresponds the in-process because of rotatory portion of screwing up 3 and injures oxygen sensor instrument at the angle.
According to some embodiments of the present disclosure, as shown in fig. 1 and 2, the first through hole 31 is coaxial with the hollow cylinder 2, and an end wall of the first through hole 31 is axially circumscribed to an end of the hollow cylinder 2. That is, the tightening unit 3 and the hollow cylindrical body 2 are sequentially brought into contact with each other in the axial direction, and end walls of the two abut against each other. Thus, the hollow cylinder 2 and the tightening part 3 coaxially rotate to drive the oxygen sensor to coaxially rotate, so that the force application part to be applied of the oxygen sensor is uniformly stressed in the circumferential direction, and the oxygen sensor is favorably and smoothly screwed on the engine shell. In addition, as shown in fig. 3, the hollow cylinder 2 may be configured as a cylinder with an opening on the side wall, and since the radial dimension of the to-be-applied part of the oxygen sensor is the largest, the inner diameter of the hollow cylinder 2 may be the same as the smallest inner diameter of the first through hole 31, that is, the inner surface 21 of the hollow cylinder 2 and the smallest revolution surface in the first through hole 31 are located on the same revolution surface, so that a gap is formed between the hollow cylinder 2 and the oxygen sensor accommodated in the hollow cylinder 2, further avoiding the oxygen sensor from being damaged; certainly, the inner diameter of the hollow cylinder 2 can also be larger than the minimum inner diameter of the first through hole 31, so that a gap is formed between the hollow cylinder 2 and the oxygen sensor accommodated in the hollow cylinder 2, and the oxygen sensor is prevented from being damaged; in the case of keeping a gap between the hollow cylinder 2 and the oxygen sensor accommodated in the hollow cylinder 2, the inner diameter of the hollow cylinder 2 may also be smaller than the minimum inner diameter of the first through hole 31, which will not be described in detail.
According to an embodiment of the present disclosure, as shown in fig. 1 to 3, the opening 4 includes a first opening section 41 on a side wall of the tightening part 3 and a second opening section 42 on a side wall of the hollow cylinder 2, and a width of the first opening section 41 is smaller than a width of the second opening section 42 in a circumferential direction. The lead wire on the oxygen sensor sequentially passes through the first opening section 41 and the second opening section 42 and is accommodated in the tightening part 3 and the hollow cylinder 2, and the lead wire extends out of the second opening section 42, so that the width of the second opening section 42 is larger than that of the first opening section 41, the moving space of the lead wire at the second opening section 42 can be enlarged, and the probability of damaging the lead wire in the rotating process of the hollow cylinder 2 is reduced. Moreover, the visual angle can be enlarged, the relative position between the tightening part 3 and the force application part of the oxygen sensor can be seen more clearly from the second opening section 42, the tightening part 3 is favorably and rapidly sleeved on the force application part of the oxygen sensor, and the dismounting/mounting speed is accelerated.
Alternatively, as shown in FIG. 1, the first open section 41 and the second open section 42 smoothly transition. That is, the first opening section 41 and the second opening section 42 can be smoothly transited by adopting a circular arc connection place, so that the lead of the oxygen sensor can be prevented from being scratched by corner angles. In addition, at the opening at the other end of the first opening section 41, a rounded corner may be formed on the first cylinder to prevent the lead from being scratched when passing through the first opening section 41.
According to an embodiment of the present disclosure, as shown in fig. 1, the outer surface of the tightening part 3 and the outer surface of the hollow cylinder 2 are located on the same revolution surface. That is, the tightening part 3 and the hollow cylinder 2 can be integrally formed, and the rotation axes of the tightening part and the hollow cylinder 2 coincide with each other, so that the rotational force on the hollow cylinder 2 can be uniformly transmitted to the tightening part 3 in the circumferential direction, and the tightening part 3 can be stably rotated around the rotation axis. In other embodiments, the outer surface of the tightening part 3 and the outer surface of the hollow cylinder 2 may be located on different rotation surfaces, but the rotation axes of the two may be overlapped to avoid the tightening part 3 from deflecting in the radial direction during rotation due to uneven circumferential force, and damaging the oxygen sensor, wherein the outer surface of the hollow cylinder 2 may protrude out of the outer surface of the tightening part 3, but a gap is provided between the outer surface of the hollow cylinder 2 and the heat insulation sleeve of the oxygen sensor to avoid interference between the two to affect disassembly/assembly.
According to some embodiments of the present disclosure, as shown in fig. 4 to 7, the force application portion 1 is configured as a second cylinder extending in the axial direction, a square through hole 11 extending in the axial direction is formed in the second cylinder, and the square through hole 11 is form-fitted with a square protrusion 51 on the force application tool 5. Wherein, force application tool 5 includes platelike structure's handle 53, and square bulge 51 is formed in the one end of the medial surface of handle 53, and force application portion 1, hollow cylinder 2 and the portion 3 of screwing up connect gradually along the axis direction, and square bulge 51 can insert into square through hole 11, and rotatory force application tool 5 can drive force application portion 1 synchronous revolution to it is rotatory in step to drive the oxygen sensor, installs the oxygen sensor on the engine or pull down.
Alternatively, the second cylinder is provided on its side wall with a circular through hole 12 perpendicular to the square through hole 11, the circular through hole 12 being capable of receiving an extendable/retractable spherical projection 52 provided on the side of the square projection 51. Thus, when the square protrusion 51 is inserted into the square through hole 11, the spherical protrusion 52 is limited by the side wall of the square through hole 11 and retracts into the square protrusion 51, until the spherical protrusion 52 corresponds to the circular through hole 12, the spherical protrusion 51 can extend out of the side surface of the square protrusion 51 and be clamped into the circular through hole 12, so that the force application tool 5 cannot easily disengage from the square through hole 11 along the axial direction, and the relative stability of the force application tool 5 is ensured during disassembly and assembly, and after the disassembly or assembly is completed, an outward force along the axial direction can be applied to the square protrusion 51, at this time, the spherical protrusion 51 can also receive an inward extrusion force from the end of the circular through hole 12, so that the spherical protrusion 51 gradually retracts into the square protrusion 5, and finally the square protrusion 51 is pulled out. Wherein, square through hole 11 can be coaxial with the second cylinder, the axis of circular through hole 12 can coincide with the diameter of second cylinder mutually, and a side of perpendicular to square through hole 11, make things convenient for location and the preparation of circular through hole 12 like this, spherical bulge 52 sets up on square bulge 52's side, correspond with circular through hole 12's position in the circumferential direction, the distance of circular through hole 12 apart from the free end face of second cylinder can be the same with the distance of spherical bulge 52 apart from the medial surface of the handle 53 of application of force instrument 5, and like this, when stretching into square through hole 11 with square bulge 51, when handle 53 and the free end face looks butt of second cylinder, spherical bulge 52 can block in the circular through hole 12, and is easy and simple to handle.
According to some embodiments of the present disclosure, an annular groove 13 may be provided on an outer sidewall of the second cylinder, and the circular through hole 12 may be provided in the annular groove 13. Annular groove 13 can conveniently hold between fingers application of force portion 1, has reduced the wall thickness moreover, is convenient for observe whether spherical bulge 52 blocks into circular through-hole 12, and annular groove 13 can be semi-circular recess, and pleasing to the eye and hold between fingers and feel comfortable.
According to some embodiments of the present disclosure, the outer surface of the force application portion 1 and the outer surface of the hollow cylinder 2 are located on the same revolution surface. That is, the force application part 1 and the hollow cylinder 2 can be integrally formed, and the rotation axes of the force application part 1 and the hollow cylinder 2 are overlapped, so that when the force application part 1 applies the rotation force, the rotation force is prevented from being deflected on the hollow cylinder 2 after being transmitted to the hollow cylinder 2 along the rotation axis direction, and the hollow cylinder 2 is ensured to stably rotate around the rotation axis. In other embodiments, the outer surface of the force application part 1 and the outer surface of the hollow cylinder 2 may be located on different revolution surfaces, but the revolution axes of the two are overlapped to avoid the hollow cylinder 2 from deflecting in the radial direction during the rotation process due to uneven circumferential force so as to damage the oxygen sensor.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A tool for dismounting an oxygen sensor comprises a force application part (1) used for connecting a force application tool (5), a tightening part (3) used for tightening the oxygen sensor, and a hollow cylinder body (2) positioned between the force application part (1) and the tightening part (3), and is characterized in that the tightening part (3) is configured as a first cylinder extending along the axis of the hollow cylinder body (2), a first through hole (31) extending along the axis is formed in the first cylinder, the cross section of the first through hole (31) is configured to be matched with the cross section outline of the part to be forced of the oxygen sensor, and an opening (4) extending along the axis direction and penetrating through the side wall of the tightening part (3) is arranged on the side wall of the hollow cylinder body (2).
2. The tool for disassembling and assembling an oxygen sensor according to claim 1, wherein the cross-sectional shape of the first through hole (31) is a hollow regular dodecagonal star, and each inner angle is 120 degrees.
3. The tool for dismounting an oxygen sensor according to claim 1, wherein the first through hole (31) is coaxial with the hollow cylinder (2), and an end wall of the first through hole (31) is axially circumscribing the end of the hollow cylinder (2).
4. The tool for disassembling and assembling an oxygen sensor according to claim 1, wherein the opening (4) includes a first opening section (41) on a side wall of the tightening part (3) and a second opening section (42) on a side wall of the hollow cylinder (2), and a width of the first opening section (41) is smaller than a width of the second opening section (42) in a circumferential direction.
5. The tool for disassembling and assembling an oxygen sensor according to claim 4, wherein the first opening section (41) and the second opening section (42) are smoothly transited.
6. The tool for attaching and detaching an oxygen sensor according to claim 1, characterized in that the outer surface of the tightening part (3) and the outer surface of the hollow cylinder (2) are located on the same revolution surface.
7. The tool for mounting and dismounting an oxygen sensor according to any one of claims 1 to 6, wherein the force application portion (1) is configured as a second cylinder extending in the axial direction, a square through hole (11) extending in the axial direction is formed in the second cylinder, and the square through hole (11) is matched with a square protrusion (51) on the force application tool (5) in a shape mode.
8. The tool for disassembling and assembling an oxygen sensor according to claim 7, characterized in that the side wall of the second cylinder is provided with a circular through hole (12) perpendicular to the square through hole (11), and the circular through hole (12) can accommodate an extendable/retractable spherical protrusion (52) provided on the side of the square protrusion (51).
9. The tool for disassembling and assembling an oxygen sensor according to claim 8, wherein an annular groove (13) is provided on an outer side wall of the second cylinder, and the circular through hole (12) is provided in the annular groove (13).
10. The tool for mounting and dismounting an oxygen sensor according to claim 7, wherein the outer surface of the force application part (1) and the outer surface of the hollow cylinder (2) are located on the same revolution surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640205.0U CN210850092U (en) | 2019-09-27 | 2019-09-27 | Tool for assembling and disassembling oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640205.0U CN210850092U (en) | 2019-09-27 | 2019-09-27 | Tool for assembling and disassembling oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210850092U true CN210850092U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921640205.0U Active CN210850092U (en) | 2019-09-27 | 2019-09-27 | Tool for assembling and disassembling oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210850092U (en) |
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2019
- 2019-09-27 CN CN201921640205.0U patent/CN210850092U/en active Active
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