CN105904402A - Check valve installation device - Google Patents
Check valve installation device Download PDFInfo
- Publication number
- CN105904402A CN105904402A CN201610349365.4A CN201610349365A CN105904402A CN 105904402 A CN105904402 A CN 105904402A CN 201610349365 A CN201610349365 A CN 201610349365A CN 105904402 A CN105904402 A CN 105904402A
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- Prior art keywords
- check valve
- mounting hole
- installation
- sleeve
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009434 installation Methods 0.000 title claims abstract description 65
- 230000000670 limiting effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 14
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a check valve installation device, which belongs to the field of engine assembly. The check valve installation device comprises a pressing sleeve, a pressing rod and a retaining screw, wherein a fixed thread hole is formed in one end of the outer surface of the pressing sleeve, a profiled mounting hole is formed in the other end of the outer surface of the pressing sleeve, an installation passage is formed in the pressing sleeve, the outer contour of the profiled mounting hole is the same as that of a check valve, and the check valve is installed in the installation passage through the profiled mounting hole; one end of the pressing rod extends into the installation passage, a knocking part is formed on the other end of the pressing rod, the knocking part is positioned outside the installation passage, and the check valve is pressed into a check valve mounting hole from the installation passage by one end of the pressing rod by knocking the knocking part. According to the check valve installation device of the embodiment, the pressing sleeve with the profiled mounting hole is arranged, so that the check valve is put into the installation passage of the pressing sleeve only according to the outer contour of the profiled mounting hole, the installation direction of the check valve is limited by the profiled mounting hole, and the problem of reverse installation of the check valve in the process of manual installation of the check valve is solved.
Description
Technical Field
The invention relates to the field of engine assembly, in particular to a one-way valve mounting device.
Background
The engine is the core spare part of car, has important influence to the comprehensive properties of car, and the engine includes the cylinder cap, is equipped with the fluid passageway on the cylinder cap, and in fluid passed through the fluid passageway entering engine, in order to guarantee that the fluid folk prescription flows into the engine, can set up the check valve mounting hole on the fluid passageway to at the installation check valve of check valve mounting hole, through the flow direction of check valve control fluid.
In the installation process of the one-way valve, the one-way valve is manually plugged into the oil channel, and then the one-way valve is knocked into a one-way valve installation hole in the oil channel by an auxiliary tool,
in the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
because the shape of check valve is the shape that is similar to the cylinder, the shape at its both ends is different, but the difference is very little, in the manual in-process of plugging in the oil passageway with the check valve installation, the problem that the check valve dress is reversed often appears, and then leads to in the unable engine that gets into of oil through the check valve, influences the normal work of engine.
Disclosure of Invention
In order to solve the problem that in the process of manually plugging the check valve into the oil passage, the check valve is frequently installed reversely, so that oil cannot enter an engine through the check valve, the embodiment of the invention provides a check valve installation device, which comprises: the pressing sleeve, the pressing rod and the fixing screw are arranged on the pressing sleeve;
one end of the outer surface of the pressing sleeve is provided with a fixing threaded hole, the other end of the outer surface of the pressing sleeve is provided with a profiling mounting hole, a mounting channel is arranged in the pressing sleeve, the fixing threaded hole and the profiling mounting hole are both communicated with the mounting channel, the profile of the profiling mounting hole is the same as that of a one-way valve in shape, and the one-way valve is mounted in the mounting channel through the profiling mounting hole;
the fixing screw comprises a nut and a screw rod;
an anti-falling key groove is formed in the outer surface of the pressing rod along the length direction of the pressing rod, the nut is clamped on the pressing sleeve, the screw penetrates through the fixing threaded hole and extends into the anti-falling key groove, a distance exists between the screw and the bottom of the anti-falling key groove, and the outer diameter of the screw is smaller than the width of the anti-falling key groove;
the pressure sleeve is arranged in an oil passage of an engine cylinder cover, a one-way valve mounting hole is formed in the oil passage, a stepped limiting part is further arranged at one end, away from the one-way valve mounting hole, of the pressure sleeve, and when the pressure sleeve is arranged in the oil passage of the engine cylinder cover, the stepped limiting part is located outside the oil passage;
one end of the pressure lever extends into the installation channel, the other end of the pressure lever is provided with a knocking part, the knocking part is positioned outside the installation channel, and one end of the pressure lever is used for pressing the one-way valve into the one-way valve installation hole from the installation channel by knocking the knocking part;
when one end of the pressure lever completely presses the one-way valve into the one-way valve mounting hole in the oil passage, the knocking part of the pressure lever is clamped on the limiting part.
Optionally, the length of anticreep keyway equals the central distance of profile modeling mounting hole the length at fixed screw hole's center, works as the one end card of anticreep keyway is in when on the screw rod, the one end of anticreep keyway is for keeping away from the one end of check valve mounting hole, the one end of depression bar stretches out the length of installation passageway is more than or equal to 0.2mm and is less than or equal to 0.4 mm.
Optionally, when the other end of the anti-falling key groove is clamped on the screw rod, one end of the pressure rod does not shield the profiling mounting hole.
Optionally, both ends of the anti-dropping key groove are arc-shaped surfaces.
Optionally, a diameter of one end of the pressure rod is equal to a diameter of the one-way valve.
Optionally, the knocking part is a cylindrical boss, and the diameter of the cylindrical boss is larger than the inner diameter of the pressing sleeve.
Optionally, a tightening groove is formed in the nut, and the tightening groove is in a straight shape.
Optionally, the one-way valve is in interference fit with the mounting channel.
Optionally, the pressing sleeve and the pressing rod are both subjected to quenching treatment.
Optionally, a gap exists between the outer contour of the profiling mounting hole and the outer contour of the one-way valve, and the gap is greater than or equal to 0.5mm and less than or equal to 1 mm.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
through setting up the pressure cover that has the profile modeling mounting hole, can make the check valve can only put into to the installation passageway of pressing the cover according to the outline in profile modeling hole, the rethread strikes the check valve that the depression bar will install in the passageway and impresses to the check valve mounting hole, therefore, restrict the installation direction of check valve through the profile modeling mounting hole, the in-process of artifical installation check valve has been prevented, the problem of adorning the check valve anti-return takes place, the assembly quality of car has been improved, the phenomenon that also has avoided simultaneously because the dress of check valve needs to adorn again on the contrary takes place, the work efficiency is improved, staff's working strength has been reduced. Meanwhile, the pressure lever can slide back and forth in the installation channel of the pressure sleeve and cannot fall off from the pressure sleeve in the back and forth sliding process, so that the operation of workers is facilitated. The one-way valve mounting hole provided by the embodiment of the invention is also suitable for mounting other parts which need to be mounted in the hole and have positive and negative mounting requirements.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a press-fit assembly of a check valve mounting device provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a press sleeve provided by an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a fixing screw according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a compression bar according to an embodiment of the present invention.
Wherein,
1, pressing a sleeve, 11 fixing threaded holes, 12 profiling mounting holes, 13 mounting channels and 14 limiting parts;
2, a pressure lever, 21 anti-drop key grooves and 22 knocking parts;
3, fixing screws, 31 nuts and 32 screw rods;
4, a one-way valve;
5 engine cylinder cover, 51 one-way valve mounting hole;
one end of the pressing rod A, one end of the anti-falling key groove B, which is far away from the one-way valve mounting hole, is connected with the locking groove C, and the other end of the anti-falling key groove C is connected with the locking groove D;
l1 length of the anti-slip key groove, L2 length of the center of the profile mounting hole from the center of the fixed threaded hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In order to solve the problem that in the process of manually installing and plugging a check valve into an oil passage, the check valve is often installed reversely, so that oil cannot enter an engine through the check valve, as shown in fig. 1, an embodiment of the invention provides a check valve installation device, which comprises: the pressing sleeve 1, the pressing rod 2 and the fixing screw 3;
as shown in fig. 1 and referring to fig. 2, one end of the outer surface of the pressing sleeve 1 is provided with a fixing threaded hole 11, the other end of the outer surface of the pressing sleeve 1 is provided with a profiling mounting hole 12, a mounting channel 13 is arranged in the pressing sleeve 1, the fixing threaded hole 11 and the profiling mounting hole 12 are both communicated with the mounting channel 13, the profile of the profiling mounting hole 12 is the same as the profile of the check valve 4, and the check valve 4 is mounted in the mounting channel 13 through the profiling mounting hole 12;
in the embodiment of the invention, because the outer contour of the profiling mounting hole 12 is the same as the outer contour of the check valve 4 in shape, when the one-way valve 4 is installed in the profiling mounting hole 12, if the placement position of the check valve 4 is incorrect, the check valve 4 cannot be installed in the profiling mounting hole 12, and the check valve 4 is ensured to be correctly installed in the installation channel 13 of the pressing sleeve 1 through the profiling mounting hole 12.
As shown in fig. 3, the fixing screw 3 includes a nut 31 and a screw 32;
as shown in fig. 4, an anti-slip key groove 21 is formed in the outer surface of the compression bar 2 along the length direction of the compression bar 2, as shown in fig. 1 and as shown in fig. 2, 3 and 4, the nut 31 is clamped on the compression sleeve 1, the screw 32 penetrates through the fixing threaded hole 11 and extends into the anti-slip key groove 21, a distance exists between the screw 32 and the bottom of the anti-slip key groove 21, and the outer diameter of the screw 32 is smaller than the width of the anti-slip key groove 21; for example, the width of the retaining key groove 21 may be designed to be greater than or equal to 0.5mm and less than or equal to 1mm from the outer diameter of the screw 32, or may be designed according to actual circumstances.
In the embodiment of the invention, the fixing screw 3 penetrates through the pressure sleeve 1 and the anti-falling key groove 21 on the pressure rod 2, the pressure rod 2 can not fall off from the pressure sleeve 1 when sliding back and forth in the pressure sleeve 1 through the limiting effect of the fixing screw 3 on the anti-falling key groove 21, a certain distance is reserved between the pressure rod 2 and the groove bottom of the anti-falling key groove 21, meanwhile, the width of the anti-falling key groove 21 is larger than the outer diameter of the screw rod 32, friction between the screw rod 32 of the fixing screw 3 and the pressure rod 2 can be prevented in the process of sliding back and forth of the pressure rod 2, and the service lives of the fixing screw 3 and the pressure rod 2 are prolonged.
As shown in fig. 1, the press sleeve 1 is installed in an oil passage of the engine cylinder head 5, a check valve installation hole 51 is formed in the oil passage, a stepped limiting portion 14 is further arranged at one end, away from the check valve installation hole 51, of the press sleeve 1, and when the press sleeve 1 is installed in the oil passage of the engine cylinder head 5, the stepped limiting portion 14 is located outside the oil passage;
in the embodiment of the invention, the step-shaped limiting part 14 arranged on the pressing sleeve 1 can limit the pressing sleeve 1.
As shown in fig. 1 and fig. 4, one end a of the pressure lever 2 extends into the installation channel 13, the other end is provided with a knocking portion 22, the knocking portion 22 is located outside the installation channel 13, and the one end a of the pressure lever 2 is enabled to press the check valve 4 into the check valve installation hole 51 from the installation channel 13 by knocking the knocking portion 22;
in the embodiment of the invention, the check valve 4 is firstly installed in the installation channel 13 of the pressing sleeve 1 through the profiling installation hole 12, then the pressing sleeve 1 provided with the check valve 4 is installed in the oil channel of the engine cylinder cover 5, and then the pressing rod 2 can press the check valve 4 into the direction of the check valve installation hole 51 by knocking the knocking part 22 of the pressing rod 2.
When one end A of the pressure lever 2 completely presses the check valve 4 into the check valve mounting hole 51 in the oil passage, the knocking part 22 of the pressure lever 2 can be clamped on the limiting part 14 of the pressure sleeve 1, so that the pressure lever 2 is limited, and the pressure lever 2 is prevented from completely entering the pressure sleeve 1 in the knocking process.
After the check valve 4 is installed in the check valve installation hole 51, the pressure sleeve 1 and the pressure rod 2 can be taken out from the oil passage of the engine cylinder head 5, the pressure rod 2 is pulled out from the pressure sleeve 1, the profiling installation hole 12 of the pressure sleeve 1 is exposed, due to the limiting effect of the fixing screw 3 and the anti-drop key slot 21 on the pressure rod 2, the pressure rod 2 cannot be pulled out from the pressure sleeve 1, another check valve 4 to be installed is taken out and installed in the installation passage 13 of the pressure sleeve 1 through the profiling installation hole 12, the pressure sleeve 1 provided with the check valve 4 is installed in the oil passage of the engine cylinder head 5, and the installation process of the check valve 4 is carried out again.
In the embodiment of the invention, the pressing sleeve 1 with the profiling mounting hole 12 is arranged, so that the check valve 4 can only be placed into the mounting channel 13 of the pressing sleeve 1 according to the outline of the profiling hole, and the check valve 4 in the mounting channel 13 is pressed into the check valve mounting hole 51 through the knocking press rod 2, therefore, the mounting direction of the check valve 4 is limited through the profiling mounting hole 12, the problem that the check valve 4 is reversely mounted in the process of manually mounting the check valve 4 is prevented, the assembly quality of an automobile is improved, meanwhile, the phenomenon that the check valve 4 needs to be reassembled due to reverse mounting is avoided, the working efficiency is improved, and the working strength of workers is reduced. Meanwhile, the pressure lever 2 can slide back and forth in the installation channel 13 of the pressure sleeve 1 and cannot fall off from the pressure sleeve 1 in the back and forth sliding process, so that the operation of workers is facilitated. The check valve mounting hole 51 of the embodiment of the invention is also suitable for mounting other parts which need to be mounted in the hole and have positive and negative mounting requirements.
In the embodiment of the present invention, a certain gap may be reserved between the outer profile of the profiling mounting hole 12 and the outer profile of the check valve 4 to facilitate the installation of the check valve 4 in the installation channel 13 of the pressing sleeve 1 through the profiling hole, for example, the gap is greater than or equal to 0.5mm and less than or equal to 1mm, but it should be noted that after the reserved gap, the installation direction of the check valve 4 may still be limited by the profiling mounting hole 12, so as to avoid that the reserved gap is too large, which results in the loss of the limiting effect of the profiling mounting hole 12 on the installation direction of the check valve 4.
In the embodiment of the present invention, the check valve 4 is in interference fit with the installation channel 13. The interference fit between the check valve 4 and the installation channel 13 can ensure that the check valve 4 slips in the installation channel 13 after being installed in the installation channel 13 through the profiling installation hole 12, but it should be noted that, although the check valve 4 and the installation channel 13 are in interference fit, it is still ensured that when the knocking end of the pressure lever 2 is knocked, the one end a of the pressure lever 2 can press the check valve 4 in the direction of the check valve installation hole 51 and the check valve 4 cannot be damaged.
In the embodiment of the present invention, as shown in fig. 2 and 4, the length L1 of the key retaining groove 21 is equal to the length L2 from the center of the profile mounting hole 12 to the center of the fixing threaded hole 11, when the key retaining groove 21 is away from the end B of the one-way valve mounting hole 51 and is clamped on the screw rod 32, the length of the end a of the pressure rod 2 extending out of the mounting channel 13 is greater than or equal to 0.2mm and less than or equal to 0.4mm, so as to ensure that the one end a of the pressure rod 2 accurately presses the one-way valve 4 into the one-way valve mounting hole 51, when the pressure rod 2 accurately presses the one-way valve 4 into the one-way valve mounting hole 51, the end a of the pressure rod 2 is located near the one-way valve mounting hole 51, so that the pressure rod 2 can block the profile mounting hole 12 on the pressure sleeve 1, and at this time, if another one-way valve 4 is to be mounted, the pressure sleeve 1 and the pressure rod 2 need, when the other end C of anticreep keyway 21 blocked on screw rod 32, because screw rod 32's limiting displacement, depression bar 2 can't continue outwards to pull out, will guarantee this moment that one end A of depression bar 2 can not shelter from profile modeling mounting hole 12, does not influence the profile modeling mounting hole 12 of the follow pressure cover 1 of check valve 4 and installs in the installation passageway 13 of pressure cover 1 promptly.
As shown in fig. 4, in the embodiment of the present invention, two ends of the anti-slip key groove 21 are arc surfaces, after the long-strip-shaped anti-slip key groove 21 is dug on the press rod 2, two ends of the anti-slip key groove 21 are formed into arc surfaces by rounding two ends of the anti-slip key groove 21, and two ends of the anti-slip key groove 21 are designed into arc surfaces, so that the contact area between two ends of the anti-slip key groove 21 and the screw 32 of the fixing screw 3 can be increased, and the phenomenon of stress concentration is avoided.
As shown in fig. 1, in the embodiment of the present invention, the diameter of one end a of the pressure lever 2 is equal to the diameter of the check valve 4. The diameter of one end A of the pressure lever 2 is designed to be equal to that of the one-way valve 4, so that when the knocking part 22 of the pressure lever 2 is knocked, the one end A of the pressure lever 2 can uniformly transmit force to the one-way valve 4, and the one-way valve 4 is prevented from being inclined due to nonuniform stress.
As shown in fig. 4, in the embodiment of the present invention, the knocking portion 22 is a cylindrical boss, and the diameter of the cylindrical boss is larger than the inner diameter of the pressing sleeve 1, and the knocking portion 22 not only can transmit a knocking force to one end a of the pressing rod 2, but also can be clamped on the pressing sleeve 1 to limit the pressing rod 2, so as to prevent the pressing rod 2 from being knocked into the pressing sleeve 1 in a knocking process.
As shown in fig. 3, the nut 31 of the fixing screw 3 is provided with a tightening groove D having a straight shape, and the fixing screw 3 can be tightened into the fixing screw hole 11 of the pressure sleeve 1 through the tightening groove D having the straight shape.
In the embodiment of the present invention, the dimension specification of the fixing screw 3 can be M5, the length range is greater than or equal to 5mm and less than or equal to 6.5mm, correspondingly, the dimension specification of the fixing threaded hole 11 on the pressing sleeve 1 is also M5, fixing screws 3 of other specifications can be selected according to actual conditions, and the fixing threaded hole 11 corresponding to the dimension of the fixing screw 3 can be designed.
In the embodiment of the invention, a chamfer can be designed at one end A of the compression bar 2, burrs at one end A of the compression bar 2 are removed, the size of the chamfer is 3 x 15 degrees, and the acute chamfer is passivated to prevent the stress concentration phenomenon.
In the embodiment of the invention, the pressure sleeve 1 and the pressure rod 2 can be quenched to improve the hardness of the pressure sleeve 1 and the pressure rod 2, the roughness of the surface of the pressure sleeve 1 can be less than or equal to Ra1.6, and the pressure sleeve can also be designed according to actual conditions.
In the embodiment of the invention, the pressing sleeve 1 with the profiling mounting hole 12 is arranged, so that the check valve 4 can only be placed into the mounting channel 13 of the pressing sleeve 1 according to the outline of the profiling hole, and the check valve 4 in the mounting channel 13 is pressed into the check valve mounting hole 51 through the knocking press rod 2, therefore, the mounting direction of the check valve 4 is limited through the profiling mounting hole 12, the problem that the check valve 4 is reversely mounted in the process of manually mounting the check valve 4 is prevented, the assembly quality of an automobile is improved, meanwhile, the phenomenon that the check valve 4 needs to be reassembled due to reverse mounting is avoided, the working efficiency is improved, and the working strength of workers is reduced. Meanwhile, the pressure lever 2 can slide back and forth in the installation channel 13 of the pressure sleeve 1 and cannot fall off from the pressure sleeve 1 in the back and forth sliding process, so that the operation of workers is facilitated. The check valve mounting hole 51 of the embodiment of the invention is also suitable for mounting other parts which need to be mounted in the hole and have positive and negative mounting requirements.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A check valve mounting device, comprising: the pressing sleeve, the pressing rod and the fixing screw are arranged on the pressing sleeve;
one end of the outer surface of the pressing sleeve is provided with a fixing threaded hole, the other end of the outer surface of the pressing sleeve is provided with a profiling mounting hole, a mounting channel is arranged in the pressing sleeve, the fixing threaded hole and the profiling mounting hole are both communicated with the mounting channel, the profile of the profiling mounting hole is the same as that of a one-way valve in shape, and the one-way valve is mounted in the mounting channel through the profiling mounting hole;
the fixing screw comprises a nut and a screw rod;
an anti-falling key groove is formed in the outer surface of the pressing rod along the length direction of the pressing rod, the nut is clamped on the pressing sleeve, the screw penetrates through the fixing threaded hole and extends into the anti-falling key groove, a distance exists between the screw and the bottom of the anti-falling key groove, and the outer diameter of the screw is smaller than the width of the anti-falling key groove;
the pressure sleeve is arranged in an oil passage of an engine cylinder cover, a one-way valve mounting hole is formed in the oil passage, a stepped limiting part is further arranged at one end, away from the one-way valve mounting hole, of the pressure sleeve, and when the pressure sleeve is arranged in the oil passage of the engine cylinder cover, the stepped limiting part is located outside the oil passage;
one end of the pressure lever extends into the installation channel, the other end of the pressure lever is provided with a knocking part, the knocking part is positioned outside the installation channel, and one end of the pressure lever is used for pressing the one-way valve into the one-way valve installation hole from the installation channel by knocking the knocking part;
when one end of the pressure lever completely presses the one-way valve into the one-way valve mounting hole in the oil passage, the knocking part of the pressure lever is clamped on the limiting part.
2. The check valve mounting device of claim 1,
the length of anticreep keyway equals the central distance of profile modeling mounting hole the length at fixed screw hole's center, works as the one end card of anticreep keyway is in when on the screw rod, the one end of anticreep keyway is for keeping away from the one end of check valve mounting hole, the one end of depression bar stretches out the length of installation passageway is more than or equal to 0.2mm and is less than or equal to 0.4 mm.
3. The check valve installation device of claim 2, wherein when the other end of the anti-slip key groove is clamped on the screw, one end of the pressure rod does not shield the profiling installation hole.
4. The check valve installation device of claim 1, wherein both ends of said anti-slip key groove are arc-shaped surfaces.
5. A check valve mounting arrangement as claimed in claim 1, wherein the diameter of one end of the strut is equal to the diameter of the check valve.
6. The check valve installation device of claim 1, wherein the striking portion is a cylindrical boss, and a diameter of the cylindrical boss is larger than an inner diameter of the pressing sleeve.
7. The check valve mounting device according to claim 1, wherein the nut is provided with a tightening groove, and the tightening groove is in a straight shape.
8. The check valve mounting arrangement of claim 1, wherein the check valve is an interference fit with the mounting channel.
9. The check valve mounting device of claim 1, wherein the press sleeve and the press rod are both quenched.
10. A check valve mounting arrangement as claimed in any one of claims 1 to 9, wherein a clearance exists between the outer profile of the profiled mounting hole and the outer profile of the check valve, and the clearance is greater than or equal to 0.5mm and less than or equal to 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349365.4A CN105904402B (en) | 2016-05-24 | 2016-05-24 | A kind of check valve erecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349365.4A CN105904402B (en) | 2016-05-24 | 2016-05-24 | A kind of check valve erecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105904402A true CN105904402A (en) | 2016-08-31 |
| CN105904402B CN105904402B (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610349365.4A Active CN105904402B (en) | 2016-05-24 | 2016-05-24 | A kind of check valve erecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105904402B (en) |
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|---|---|---|---|---|
| GB584290A (en) * | 1944-12-22 | 1947-01-10 | Richard Antony Jackson | Improvements relating to tools for fitting spring clips |
| US2480366A (en) * | 1946-01-16 | 1949-08-30 | Ivan N Hewitt | Valve stem pushing implement |
| US2488001A (en) * | 1947-03-03 | 1949-11-15 | Gerald H Birk | Tool for installing valve stem guide bushings |
| US4292719A (en) * | 1979-12-26 | 1981-10-06 | Britton Jr Francis D | Engine valve lifter service tool |
| US6122810A (en) * | 1999-08-30 | 2000-09-26 | Mcinnes; Robert P. | Valve core grasping apparatus |
| CN201979482U (en) * | 2011-03-22 | 2011-09-21 | 奇瑞汽车股份有限公司 | Non-return valve mounting tool |
| CN202491215U (en) * | 2012-02-08 | 2012-10-17 | 安庆市高成汽配有限责任公司 | Pressure head for press fitting of check valve of hand pump |
| CN203579541U (en) * | 2013-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Quadrel extractor for water injection pump |
-
2016
- 2016-05-24 CN CN201610349365.4A patent/CN105904402B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB584290A (en) * | 1944-12-22 | 1947-01-10 | Richard Antony Jackson | Improvements relating to tools for fitting spring clips |
| US2480366A (en) * | 1946-01-16 | 1949-08-30 | Ivan N Hewitt | Valve stem pushing implement |
| US2488001A (en) * | 1947-03-03 | 1949-11-15 | Gerald H Birk | Tool for installing valve stem guide bushings |
| US4292719A (en) * | 1979-12-26 | 1981-10-06 | Britton Jr Francis D | Engine valve lifter service tool |
| US6122810A (en) * | 1999-08-30 | 2000-09-26 | Mcinnes; Robert P. | Valve core grasping apparatus |
| CN201979482U (en) * | 2011-03-22 | 2011-09-21 | 奇瑞汽车股份有限公司 | Non-return valve mounting tool |
| CN202491215U (en) * | 2012-02-08 | 2012-10-17 | 安庆市高成汽配有限责任公司 | Pressure head for press fitting of check valve of hand pump |
| CN203579541U (en) * | 2013-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Quadrel extractor for water injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105904402B (en) | 2018-02-16 |
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