阅读说明：本技术 一种油压减振器底阀 (Bottom valve of oil pressure shock absorber ) 是由 王德刚 王建 刘艳 于 2021-10-27 设计创作，主要内容包括：本发明公开了一种油压减振器底阀,包括内缸筒,所述内缸筒的内部固定设置有液压腔,所述内缸筒内部的上端固定焊接有密封件,所述密封件的内部固定设置有安装腔B,所述安装腔B内部上端固定安装有密封橡胶圈A,所述密封橡胶圈A的下端活动设置有活动环板,所述活动环板下端的两侧固定焊接有伸张弹簧C,所述伸张弹簧C的下端焊接连接有抵压块。本发明通过在内缸筒下端的中间处贯穿设置卡装圆深槽,在装圆深槽的四周固定设置斜环槽,斜环槽可通过对限位卡销一侧上端斜倒面配合活动,使得限位卡销向安装腔A内部活动,实现油压减振器底阀的快速安装拆卸。(The invention discloses a bottom valve of an oil pressure shock absorber, which comprises an inner cylinder barrel, wherein a hydraulic cavity is fixedly arranged inside the inner cylinder barrel, a sealing element is fixedly welded at the upper end inside the inner cylinder barrel, an installation cavity B is fixedly arranged inside the sealing element, a sealing rubber ring A is fixedly arranged at the upper end inside the installation cavity B, a movable annular plate is movably arranged at the lower end of the sealing rubber ring A, extension springs C are fixedly welded on two sides of the lower end of the movable annular plate, and pressing blocks are welded at the lower ends of the extension springs C. According to the invention, the clamping circular deep groove is arranged in the middle of the lower end of the inner cylinder barrel in a penetrating manner, the inclined ring grooves are fixedly arranged around the clamping circular deep groove, and the inclined ring grooves can be matched and move through the inclined inverted surfaces at the upper end of one side of the limiting clamping pin, so that the limiting clamping pin moves towards the inside of the mounting cavity A, and the bottom valve of the oil pressure shock absorber can be rapidly mounted and dismounted.)

1. The utility model provides an oil hydraulic shock absorber bottom valve, includes inner cylinder (3), its characterized in that: the hydraulic cylinder is characterized in that a hydraulic cavity (11) is fixedly arranged inside the inner cylinder barrel (3), a sealing piece (14) is fixedly welded at the upper end inside the inner cylinder barrel (3), an installation cavity B (13) is fixedly arranged inside the sealing piece (14), a sealing rubber ring A (15) is fixedly installed at the upper end inside the installation cavity B (13), a movable ring plate (12) is movably arranged at the lower end of the sealing rubber ring A (15), extension springs C (16) are fixedly welded at two sides of the lower end of the movable ring plate (12), a pressing block (17) is welded at the lower end of the extension springs C (16), a sealing rubber ring B (18) is installed at the pressing block (17), an installation piece (8) is installed at the lower end of the inner cylinder barrel (3) in an inserting mode, a bottom valve (10) is fixedly welded at the middle of the upper end of the installation piece (8), and pushing and pulling pieces (9) are movably inserted at two sides of the installation piece (8), the improved cylinder is characterized in that movable cavities B (23) are fixedly arranged on two sides of the lower end of the inner cylinder barrel (3), the push-pull piece (9) is movably located in the movable cavities B (23), movable long cavities (24) are transversely and fixedly arranged at the upper ends of the movable cavities B (23), limiting clamping grooves (22) are formed in one sides of the movable long cavities (24), movable cavities A (19) are vertically and fixedly arranged at the upper ends of the movable cavities B (23), movable long blocks (5) are movably arranged in the movable long cavities (24), shrinkage springs (25) are fixedly welded on one sides of the movable long blocks (5), and sealing rings (20) are clamped between the mounting piece (8) and the inner cylinder barrel (3).

2. The bottom valve of an oil pressure shock absorber according to claim 1, wherein: pass through welded connection between activity crown plate (12) and piston rod (6), the equal vertical activity of activity crown plate (12) and briquetting (17) is located installation cavity B (13), the centre department of sealing member (14) runs through and is provided with the cylinder through-hole, and the cylinder through-hole through connection on installation cavity B (13) and sealing member (14), the vertical activity of piston rod (6) is located the cylinder through-hole, through stretching spring C (16) welded connection between activity crown plate (12) and briquetting (17).

3. The bottom valve of an oil pressure shock absorber according to claim 1, wherein: the mounting part (8) comprises a fixed base plate (801), a fixed clamping block (802), a mounting cavity A (803), an extension spring A (804) and a limiting clamping pin (805), a movable abutting plate (902) is fixedly welded at the upper end of the fixed base plate (801), the mounting cavity A (803) is transversely fixedly arranged on two sides of the upper end of the fixed clamping block (802), the extension spring A (804) is fixedly connected to one side end face of the interior of the mounting cavity A (803), and the limiting clamping pin (805) is fixedly welded on one side end face of the extension spring A (804).

4. The bottom valve of an oil pressure shock absorber according to claim 3, wherein: the push-pull piece (9) comprises a push column (901), a movable abutting plate (902), a stretching spring B (903) and a Z-shaped push column (904), wherein the upper end of the push column (901) is connected with the movable abutting plate (902) in a welding mode, the Z-shaped push column (904) is fixedly welded in the middle of the upper end of the movable abutting plate (902), and the stretching spring B (903) is arranged on the periphery of the Z-shaped push column (904); the movable abutting plate (902) and the Z-shaped pushing column (904) are vertically and movably located in the movable cavity B (23), and the upper end face inside the movable cavity B (23) is fixedly connected with the movable abutting plate (902) through an extension spring B (903).

5. The bottom valve of an oil pressure shock absorber according to claim 3, wherein: the inside opposite side of extension spring A (804) runs through and is provided with the activity hole, spacing bayonet lock (805) activity is located the activity hole, the fixed spacing draw-in groove (22) that is provided with in one side of activity long chamber (24), the one end card of spacing bayonet lock (805) is gone into and is located spacing draw-in groove (22).

6. The bottom valve of an oil pressure shock absorber according to claim 3, wherein: the middle of inner cylinder (3) lower extreme department runs through and is provided with and clamps the deep groove of circle, installed part (8) card is gone into and is located and clamps the deep groove of circle, clamp the deep groove of circle fixed all around and be provided with oblique annular (21), the end angle department of spacing bayonet lock (805) one side is fixed and is provided with the chamfer to one side.

7. The bottom valve of an oil pressure shock absorber according to claim 4, wherein: the middle of activity rectangular piece (5) is located to run through and is provided with activity through groove (7), spacing draw-in groove (22) run through the inside that UNICOM's activity chamber B (23) extended to inner cylinder barrel (3), the one end that the activity led to groove (7) is provided with to one side groove (1), the activity of the upper end that Z type promoted post (904) is located activity through groove (7) and spacing draw-in groove (22), the terminal surface of the inside one end in the activity rectangular piece (5) and activity rectangular chamber (24) passes through shrink spring (25) fixed connection.

8. The bottom valve of an oil pressure shock absorber according to claim 1, wherein: the inner cylinder barrel is characterized in that an outer cylinder barrel (2) is movably arranged at the upper end of the inner cylinder barrel (3), a piston rod (6) is movably arranged in the middle of the upper end of the outer cylinder barrel (2), and an upper fixing hole is fixedly welded at the upper end of the piston rod (6).

9. The bottom valve of an oil pressure shock absorber according to claim 1, wherein: the periphery of the lower end of the inner cylinder barrel (3) is in threaded connection with a movable abutting block (4), and a lower fixing hole is fixedly welded in the middle of the lower end of the movable abutting block (4).

Technical Field

The invention relates to the technical field of oil pressure dampers, in particular to a bottom valve of an oil pressure damper.

Background

Oil pressure shock absorber is as the important part of all kinds of vehicles, the security, the stationarity and the travelling comfort of its damping characteristic direct impact vehicle operation, oil pressure shock absorber bottom valve is the important component structure who guarantees oil pressure shock absorber damping characteristic, the mounting means of current oil pressure shock absorber bottom valve is mostly the bolt and nut connection, this kind of connecting means rusts easily and fixes into the dead knot, when maintenance, maintenance workman is difficult for dismantling the change, extravagant manpower financial resources, work efficiency can't guarantee.

Disclosure of Invention

The present invention is directed to a bottom valve of an oil pressure damper to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a bottom valve of an oil pressure shock absorber comprises an inner cylinder barrel, wherein a hydraulic cavity is fixedly arranged inside the inner cylinder barrel, a sealing piece is fixedly welded at the upper end inside the inner cylinder barrel, an installation cavity B is fixedly arranged inside the sealing piece, a sealing rubber ring A is fixedly arranged at the upper end inside the installation cavity B, a movable ring plate is movably arranged at the lower end of the sealing rubber ring A, extension springs C are fixedly welded at two sides of the lower end of the movable ring plate, a pressing block is welded at the lower end of the extension springs C, the sealing rubber ring B is installed at the lower end of the pressing block in a pressing mode, an installation piece is inserted and clamped at the lower end of the inner cylinder barrel, a bottom valve is fixedly welded in the middle of the upper end of the installation piece, push-pull pieces are movably inserted into two sides of the installation piece, movable cavities B are fixedly arranged at two sides of the lower end of the inner cylinder barrel, and movably positioned in the movable cavities B, the movable long cavity is transversely and fixedly arranged at the upper end of the movable cavity B, a limiting clamping groove is formed in one side of the movable long cavity, the movable cavity A is vertically and fixedly arranged at the upper end of the movable cavity B, a movable long block is movably arranged in the movable long cavity, a contraction spring is fixedly welded on one side of the movable long block, and a sealing ring is clamped between the mounting piece and the inner portion of the inner cylinder barrel.

Preferably, the movable ring plate is connected with the piston rod through welding, the movable ring plate and the pressing block are vertically movably located in the installation cavity B, a cylindrical through hole penetrates through the middle of the sealing element, the installation cavity B is connected with the cylindrical through hole in a penetrating mode, the piston rod is vertically movably located in the cylindrical through hole, and the movable ring plate is connected with the pressing block through the expansion spring C in a welding mode.

Preferably, the installed part includes PMKD, fixture block, installation cavity A, stretch spring A, spacing bayonet lock, the fixed welding in PMKD's upper end has the activity to support the board, the both sides of fixture block upper end are all transversely fixed and are provided with installation cavity A, the inside one side terminal surface fixedly connected with of installation cavity A stretches spring A, the fixed welding of one side terminal surface of stretching spring A has spacing bayonet lock.

Preferably, the push-pull member comprises a pushing column, a movable abutting plate and an extension spring B, Z type pushing column, the upper end of the pushing column is connected with the movable abutting plate in a welding mode, the middle of the upper end of the movable abutting plate is fixedly welded with the Z type pushing column, and the periphery of the Z type pushing column is provided with the extension spring B.

Preferably, the movable abutting plate and the Z-shaped pushing column are vertically and movably located in the movable cavity B, and the upper end face inside the movable cavity B is fixedly connected with the movable abutting plate through an extension spring B.

Preferably, the other side inside the extension spring A is provided with a movable hole in a penetrating manner, the limiting clamping pin is movably located in the movable hole, a limiting clamping groove is fixedly formed in one side of the movable long cavity, and one end of the limiting clamping pin is clamped into the limiting clamping groove.

Preferably, the middle of the lower end of the inner cylinder barrel is provided with a clamping deep groove in a penetrating mode, the mounting piece is clamped in the clamping deep groove, oblique ring grooves are fixedly formed in the periphery of the clamping deep groove, and oblique inverted faces are fixedly arranged at end corners of one side of the limiting clamping pins.

Preferably, the middle of the movable long block is provided with a movable through groove in a penetrating mode, the limiting clamping groove penetrates through the inner portion, communicated with the movable cavity B, of the inner cylinder barrel, one end of the movable through groove is provided with an oblique groove, the upper end of the Z-shaped pushing column is movably located in the movable through groove and the limiting clamping groove, and one end of the movable long block is fixedly connected with the end face of one end of the inner end of the movable long block through a contraction spring.

Preferably, the upper end of the inner cylinder barrel is movably provided with an outer cylinder barrel, the middle of the upper end of the outer cylinder barrel is movably provided with a piston rod, and the upper end of the piston rod is fixedly welded with an upper fixing hole.

Preferably, the periphery of the lower end of the inner cylinder barrel is in threaded connection with a movable abutting block, and a lower fixing hole is fixedly welded in the middle of the lower end of the movable abutting block.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the clamping circular deep groove is arranged in the middle of the lower end of the inner cylinder barrel in a penetrating manner, the inclined ring grooves are fixedly arranged around the clamping circular deep groove, the inclined ring grooves can be matched and move through the inclined inverted surface at the upper end of one side of the limiting clamping pin, so that the limiting clamping pin moves towards the inside of the mounting cavity A, and then the fixing clamping block moves towards the inside of the clamping circular deep groove;

2. according to the invention, the pushing column is pressed to move towards the inside of the last movable cavity B, the pushing column drives the movable abutting plate and the Z-shaped pushing column to move towards the upper end, because the Z-shaped pushing column is of a Z-shaped structure, one side of the upper end of the Z-shaped pushing column is in offset fit with the movable through groove in the movable long cavity, one side of the movable through groove on the movable long block is inclined to the groove and the upper end of the Z-shaped pushing column can be in movable fit, so that the vertical movement of the Z-shaped pushing column is converted into the transverse movement of the movable long block, at the moment, the displacement of the movable long block can push the limiting bayonet lock on one side out of the limiting bayonet lock, the limiting effect of the limiting bayonet lock on the integral mounting piece is rapidly removed, and the integral mounting piece and the bottom valve can be rapidly disassembled through the above operations.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an elevational, partially cut-away view of the invention in its entirety;

FIG. 3 is an enlarged cutaway view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged cutaway view of FIG. 2 at B of the present invention;

FIG. 5 is an enlarged cutaway view taken at C of FIG. 4 in accordance with the present invention;

fig. 6 is an enlarged sectional view taken at D in fig. 4 according to the present invention.

In the figure: 1. inclining to the groove; 2. an outer cylinder barrel; 3. an inner cylinder barrel; 4. a movable resisting block; 5. a movable long block; 6. a piston rod; 7. a movable through groove; 8. a mounting member; 801. fixing the bottom plate; 802. fixing the fixture block; 803. installing a cavity A; 804. extending the spring A; 805. a limiting bayonet lock; 9. a push-pull member; 901. pushing the column; 902. a movable resisting plate; 903. extending the spring B; 904. a Z-shaped pushing column; 10. a bottom valve; 11. a hydraulic chamber; 12. a movable ring plate; 13. installing a cavity B; 14. a seal member; 15. sealing a rubber ring A; 16. a spring C is extended; 17. a pressing block; 18. sealing a rubber ring B; 19. a movable cavity A; 20. a seal ring; 21. an oblique ring groove; 22. a limiting clamping groove; 23. a movable cavity B; 24. a movable long cavity; 25. the spring is contracted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 6, an embodiment of the present invention includes: a bottom valve of an oil pressure shock absorber comprises an inner cylinder barrel 3, a hydraulic cavity 11 is fixedly arranged inside the inner cylinder barrel 3, a sealing piece 14 is fixedly welded at the upper end inside the inner cylinder barrel 3, a mounting cavity B13 is fixedly arranged inside the sealing piece 14, a sealing rubber ring A15 is fixedly arranged at the upper end inside a mounting cavity B13, a movable annular plate 12 is movably arranged at the lower end of a sealing rubber ring A15, extension springs C16 are fixedly welded at two sides of the lower end of the movable annular plate 12, a pressing block 17 is welded at the lower end of the extension springs C16, a sealing rubber ring B18 is arranged under the pressing block 17, a mounting piece 8 is inserted and clamped at the lower end of the inner cylinder barrel 3, a bottom valve 10 is fixedly welded at the middle part of the upper end of the mounting piece 8, push-pull pieces 9 are movably inserted and arranged at two sides of the lower end of the mounting piece 8, movable cavity B23 is fixedly arranged at two sides of the lower end of the inner cylinder barrel 3, the push-pull pieces 9 are movably arranged in a movable cavity B23, a movable cavity B23 is transversely and fixedly arranged with a movable cavity 24, one side of the movable long cavity 24 is provided with a limiting clamping groove 22, the upper end of the movable cavity B23 is vertically and fixedly provided with a movable cavity A19, the movable long cavity 24 is movably provided with a movable long block 5, one side of the movable long block 5 is fixedly welded with a contraction spring 25, and a sealing ring 20 is clamped between the mounting part 8 and the inner part of the inner cylinder 3.

Further, the movable ring plate 12 and the piston rod 6 are connected by welding, the movable ring plate 12 and the abutting block 17 are vertically and movably located in the installation cavity B13, a cylindrical through hole penetrates through the middle of the sealing element 14, the installation cavity B13 is connected with the cylindrical through hole in the sealing element 14 in a penetrating manner, the piston rod 6 is vertically and movably located in the cylindrical through hole, the movable ring plate 12 and the abutting block 17 are connected by welding through an extension spring C16, the movable ring plate 12 is driven to press the extension spring C16 downwards when the piston rod 6 is pressed downwards, the extension elastic force of the extension spring C16 can have certain pressure on the abutting block 17, so that the abutting block 17 can press the sealing rubber ring B18 at the bottom end of the installation cavity B13, and the friction force between the piston rod 6 and the sealing element 14 is improved.

Further, the mounting part 8 comprises a fixed bottom plate 801, a fixed fixture block 802, a mounting cavity A803, an extension spring A804 and a limiting clamping pin 805, a movable abutting plate 902 is fixedly welded at the upper end of the fixed bottom plate 801, the mounting cavity A803 is transversely and fixedly arranged on both sides of the upper end of the fixed fixture block 802, the extension spring A804 is fixedly connected to the end face of one side inside the mounting cavity A803, and the limiting clamping pin 805 is fixedly welded to the end face of one side of the extension spring A804.

Further, the push-pull member 9 includes a pushing column 901, a movable abutting plate 902, an extension spring B903, and a Z-shaped pushing column 904, the upper end of the pushing column 901 is welded with the movable abutting plate 902, the middle of the upper end of the movable abutting plate 902 is fixedly welded with the Z-shaped pushing column 904, and the extension spring B903 is disposed around the Z-shaped pushing column 904.

Further, the movable abutting plate 902 and the Z-shaped pushing column 904 are vertically movably located in the movable cavity B23, the upper end face inside the movable cavity B23 is fixedly connected with the movable abutting plate 902 through an extension spring B903, and the Z-shaped pushing column 904 and the movable abutting plate 902 can have a reciprocating action in the vertical direction due to the elastic force of the extension spring B903.

Furthermore, a movable hole penetrates through the other side of the interior of the extension spring A804, the limiting clamping pin 805 is movably located in the movable hole, a limiting clamping groove 22 is fixedly arranged on one side of the movable long cavity 24, one end of the limiting clamping pin 805 is clamped in the limiting clamping groove 22, and the movable hole greatly improves the mobility of the limiting clamping pin 805.

Further, a clamping deep groove penetrates through the middle of the lower end of the inner cylinder 3, the mounting part 8 is clamped in the clamping deep groove, inclined ring grooves 21 are fixedly arranged on the periphery of the clamping deep groove, inclined reverse faces are fixedly arranged at end corners of one side of the limiting clamping pin 805, and the clamping effect of the limiting clamping pin 805 can be improved due to the inclined reverse faces of one side of the limiting clamping pin 805.

Further, the middle of activity rectangular piece 5 is located to run through and is provided with the activity and leads to groove 7, spacing draw-in groove 22 runs through the inside that UNICOM's activity chamber B23 extends to inner cylinder 3, the one end that the activity led to groove 7 is provided with oblique groove 1, the upper end activity that the Z type promoted post 904 is located the activity and leads to groove 7 and spacing draw-in groove 22, the terminal surface of the inside one end in activity rectangular piece 5's one end and the activity rectangular chamber 24 passes through shrink spring 25 fixed connection, the activity is led to groove 7 and spacing draw-in groove 22 and can be improved the Z type and promote post 904 activity from top to bottom.

Further, the upper end of the inner cylinder barrel 3 is movably provided with an outer cylinder barrel 2, the middle of the upper end of the outer cylinder barrel 2 is movably provided with a piston rod 6, and the upper end of the piston rod 6 is fixedly welded with an upper fixing hole.

Furthermore, the periphery of the lower end of the inner cylinder barrel 3 is in threaded connection with a movable abutting block 4, and a lower fixing hole is fixedly welded in the middle of the lower end of the movable abutting block 4.

When the installation fixture is used, the integral installation piece 8 and the bottom valve 10 at the upper end of the integral installation piece are inserted into the hydraulic cavity 11 at the lower end of the inner cylinder barrel 3, the clamping deep groove penetrates through the middle of the lower end of the inner cylinder barrel 3, the inclined ring groove 21 is fixedly arranged around the clamping deep groove, and the inclined ring groove 21 can move in a matching way by obliquely inverting the upper end of one side of the limiting clamping pin 805, so that the limiting clamping pin 805 moves towards the inside of the installation cavity A803, the fixing clamping block 802 moves towards the clamping deep groove, when the fixed bottom plate 801 is attached to the lower end face of the inner cylinder barrel 3, the limiting clamping pin 805 is inserted into the limiting clamping groove 22 through the elasticity of the extension spring A804, and the quick installation of the integral installation piece 8 and the bottom valve 10 can be realized;

if the integral installation member 8 and the bottom valve 10 are disassembled rapidly, the pushing column 901 is pressed to enable the pushing column 901 to move upwards in the next movable cavity B23, the pushing column 901 drives the movable resisting plate 902 and the Z-shaped pushing column 904 to move upwards, because the Z-shaped pushing column 904 is of a Z-shaped structure, one side of the upper end of the Z-shaped pushing column 904 is in a shifting movement matched with the movable through groove 7 in the movable long cavity 24, one side of the movable through groove 7 on the movable long block 5, which is inclined to the groove 1, can be in a moving matching with the upper end of the Z-shaped pushing column 904, so that the vertical movement of the Z-shaped pushing column 904 is converted into the transverse movement of the movable long block 5, at the moment, the displacement of the movable long block 5 can push the limiting clamping pin 805 on one side out of the limiting clamping groove 22, the limiting effect of the limiting clamping pin 805 on the integral installation member 8 is rapidly released, and the movable long block 5 can be restored to the original position after the displacement through the contraction elastic force of the contraction spring 25, similarly, by providing the extension spring B903 in the movable chamber B23, the extension spring force of the extension spring B903 can restore the push column 901 and the Z-shaped push column 904 to the original position.