CN110005743B - Inflatable sealing equipment of damper - Google Patents
Inflatable sealing equipment of damper Download PDFInfo
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- CN110005743B CN110005743B CN201910321894.7A CN201910321894A CN110005743B CN 110005743 B CN110005743 B CN 110005743B CN 201910321894 A CN201910321894 A CN 201910321894A CN 110005743 B CN110005743 B CN 110005743B
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- 238000007789 sealing Methods 0.000 title claims abstract description 77
- 238000013016 damping Methods 0.000 claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 9
- 230000006872 improvement Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
- F16F9/432—Filling or drainage arrangements, e.g. for supply of gas via piston rod sealing or guiding means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The application discloses an inflatable sealing device of a damper, which is characterized in that a damping pull rod is clamped through a clamping mechanism, the lower end of the damping pull rod is clamped and fixed in a lower clamping through hole, the upper part of the damping pull rod is clamped and fixed in an upper clamping through hole, downward pressure is applied to an inflatable seat, meanwhile, the inflatable seat moves downwards along a guide rod through a guide seat, so that an inflatable cavity is formed by the lower hole section and the upper end surface of the damping pull rod, an air supply device is communicated with an air inlet hole on the side surface of the inflatable seat, air enters the inflatable cavity through an air channel at the bottom of the air inlet hole, the inflation of the damping pull rod is realized, downward pressure is applied to the upper end of a first ejector rod, the first ejector rod moves downwards along the upper hole section, a sealing needle is inserted into an inflation port of the damping pull rod, the sealing of the damping pull rod is realized, two procedures of inflation and sealing are completed under the condition that a working platform is not replaced, the problem of air leakage is avoided, and the working steps are simplified. The application is used for inflating and sealing the damping pull rod.
Description
Technical Field
The application relates to the technical field of damper processing, in particular to an inflatable sealing device of a damper.
Background
Aiming at a hydraulic damper with an air chamber, the performance and the service life of the hydraulic damper are difficult to be ensured because the hydraulic damper works in an environment with larger impact vibration for a long time, and when the air chamber leaks air, the hydraulic damper is difficult to repair and reuse in a short time, the hydraulic damper needs to be inflated and sealed frequently, the prior art generally adopts a threaded connection sealing mode when the damper is inflated, the waste of the inflated air and the condition of low working efficiency are inevitably caused in the production process, the complicated working procedure not only reduces the production efficiency, but also causes the waste of manpower and material resources, and the sealing mode adopting the threaded connection is easy to wear in the long-term working cycle, so that the device cannot form a closed space, namely the air leakage phenomenon is caused; the installation cavity in the traditional damper inflation tool is not beneficial to clamping and disassembling of the damper or the damping pull rod waiting for the inflation part, and the air leakage phenomenon easily occurs in the inflation and sealing process, so that the inflation working quality and efficiency are reduced.
Disclosure of Invention
The application aims to solve the technical problems that: the air inflation sealing device for the damper has the advantages that two working processes of inflation and sealing are completed under the condition that a working platform is not replaced, working steps are simplified, clamping and dismounting are convenient and reliable, and inflation efficiency is improved.
The application solves the technical problems as follows:
an inflatable sealing device of a damper comprises an inflatable sealing mechanism and a clamping mechanism;
the clamping mechanism comprises a clamping part and a fixing part which are arranged up and down; the fixing part comprises a base which is transversely arranged;
the clamping part comprises a fixed clamping piece and a movable clamping piece which are arranged left and right;
the fixed clamping piece comprises a lower fixed clamping block, an upper fixed clamping block arranged above the lower fixed clamping block and a fixed connecting block vertically arranged between the upper fixed clamping block and the lower fixed clamping block, wherein the upper fixed clamping block is fixedly connected with the lower fixed clamping block through the fixed connecting block, the lower wall surface of the lower fixed clamping block is fixedly connected with the upper surface of the base, the movable clamping piece comprises a lower movable clamping block, an upper movable clamping block arranged above the lower movable clamping block and a movable connecting block vertically arranged between the upper movable clamping block and the lower movable clamping block, the upper movable clamping block is fixedly connected with the lower movable clamping block through the movable connecting block, a first hinge piece with a vertical axis is arranged between the rear part of the lower movable clamping block and the rear part of the lower fixed clamping block, the rear part of the lower fixed clamping block is hinged with the rear part of the lower movable clamping block through the first hinge piece, the right side surface of the front part of the lower fixed clamping block is provided with a semicircular lower fixed notch, the left side surface of the lower movable clamping block is provided with a semicircular lower movable notch, the right side surface of the front part of the upper fixed clamping block is provided with a semicircular upper fixed notch, the left side surface of the upper movable clamping block is provided with a semicircular upper movable notch, when the right side surface of the front part of the lower fixed clamping block is abutted with the left side surface of the lower movable clamping block, the right side surface of the front part of the upper fixed clamping block is abutted with the left side surface of the upper movable clamping block, the upper fixed notch is abutted with the upper movable notch to form a circular upper clamping through hole, the lower fixed notch is abutted with the lower movable notch to form a circular lower clamping through hole, the upper clamping through hole and the lower clamping through hole are coaxially arranged, and the axes of the upper clamping through hole and the lower clamping through hole are vertically arranged;
the inflatable sealing mechanism comprises an inflatable seat and a guide seat which are connected with each other, and the inflatable seat and the guide seat are arranged above the clamping part;
the air charging seat is provided with an air charging stepped hole with a vertical axis, the air charging stepped hole penetrates through the top surface and the bottom surface of the air charging seat, the air charging stepped hole and the upper clamping through hole are coaxially arranged, the air charging stepped hole comprises an upper hole section, a middle hole section and a lower hole section which are arranged from top to bottom, the upper hole section, the middle hole section and the lower hole Duan Tongzhou are arranged, the inner diameter of the upper hole section is smaller than that of the middle hole section, the inner diameter of the middle hole section is smaller than that of the lower hole section, the side surface of the air charging seat is provided with an air inlet, the bottom of the air inlet is communicated with an air passage communicated with the lower hole section, a first ejector rod is arranged in the upper hole section, the edge of the lower end of the first ejector rod is provided with a first shaft shoulder which extends outwards, the outer diameter of the first shaft shoulder is larger than that of the upper hole section, the upper end of the first ejector rod passes through the upper hole section from bottom to top, the lower end of the first ejector rod is provided with a cylindrical accommodating groove which is coaxially arranged, the accommodating groove is sleeved with the first coaxial with the first accommodating groove, the accommodating groove is sleeved with the second annular groove 37is arranged at the lower end of the second annular groove, and the second annular groove is arranged at the lower end of the second annular groove is arranged at the lower sealing seat;
the guide holder is connected with the side of the inflatable seat, the guide holder is arranged above the upper fixed clamping block, the guide holder is provided with first guide holes with two axes being vertically arranged, correspondingly, the upper fixed clamping block is provided with second guide holes with two axes being vertically arranged, the positions of the two first guide holes and the positions of the two second guide holes are in one-to-one correspondence, a guide rod being vertically arranged is arranged between the first guide holes and the second guide holes, the upper end of the guide rod is connected with a butt joint, the outer diameter of the butt joint is larger than the inner diameter of the first guide hole, the lower end of the guide rod sequentially penetrates through the first guide hole and the second guide hole from top to bottom, the lower end of the guide rod is connected with a fixed check ring, the outer diameter of the fixed check ring is larger than the inner diameter of the second guide hole, the outer side of the guide rod is sleeved with a reset spring, and the upper end of the reset spring is in butt joint with the lower end of the first guide hole, and the lower end of the reset spring is in butt joint with the upper end of the second guide hole.
As a further improvement of the scheme, the lower clamping through hole is in a stepped hole shape, and the inner diameter of the upper port of the lower clamping through hole is larger than that of the lower port of the lower clamping through hole.
As a further improvement of the scheme, the right side of the lower movable clamping block is provided with a fixed handle, one end of the fixed handle is connected with a second hinge part, the axis of the second hinge part is arranged in a left-right extending mode, the fixed handle is hinged with the right side face of the front portion of the lower movable clamping block through the second hinge part, the other end of the fixed handle extends to the front side, the lower side face of the middle portion of the fixed handle is provided with a positioning protrusion, the upper surface of the base is provided with a positioning groove matched with the positioning protrusion, and when the positioning protrusion is clamped with the positioning groove, the right side face of the front portion of the lower fixed clamping block is abutted to the left side face of the lower movable clamping block.
As a further improvement of the scheme, a first through groove is formed in the base right below the lower clamping through hole, and the first through groove penetrates through the upper side and the lower side of the base.
As a further improvement of the scheme, the fixing part further comprises a base arranged on the lower side of the base, the base is transversely arranged, the upper surface of the base is fixedly connected with the lower surface of the base, the base is transversely provided with a second through groove which penetrates through the upper side and the lower side of the base, and the second through groove is arranged right below the first through groove.
As a further improvement of the scheme, a first annular groove is formed in the side wall of the first ejector rod, a first sealing ring is sleeved in the first annular groove, and the first ejector rod is in sliding sealing contact with the inner wall of the upper hole section through the first sealing ring.
As a further improvement of the scheme, the inner wall of the air inlet hole is provided with an internal thread, the inflatable sealing mechanism comprises an inflatable tube, the outer side wall of the outlet end of the inflatable tube is provided with an external thread matched with the internal thread, and the inflatable tube is in threaded connection with the air inlet hole.
As a further improvement of the scheme, the first hinge part is a rotating shaft with a vertical axis, fixed hinge holes are formed in the rear part of the lower fixed clamping block and the rear part of the upper fixed clamping block, movable hinge holes are formed in the rear part of the upper movable clamping block and the rear part of the lower movable clamping block, the fixed hinge holes and the movable hinge holes are coaxially arranged, the upper end of the rotating shaft penetrates through the movable hinge holes and the fixed hinge holes which are arranged above the clamping part, and the lower end of the rotating shaft penetrates through the movable hinge holes and the fixed hinge holes which are arranged below the clamping part, and the movable clamping part is hinged with the fixed clamping part through the rotating shaft.
As a further improvement of the scheme, the inflatable sealing mechanism further comprises a pre-tightening assembly, the pre-tightening assembly is arranged above the inflatable seat, the pre-tightening assembly comprises a pre-tightening seat, a pre-tightening cylinder, a pre-tightening spring and a second ejector rod, the pre-tightening cylinder is arranged below the pre-tightening seat, a pre-tightening stepped hole with a vertical axis is arranged in the pre-tightening cylinder, the pre-tightening stepped hole penetrates through the top surface and the bottom surface of the pre-tightening cylinder, the pre-tightening stepped hole comprises a sliding section and a pre-tightening section which are arranged from top to bottom, the sliding section and the pre-tightening section are coaxially arranged, the inner diameter of the pre-tightening section is larger than the outer diameter of the first ejector rod, the inner diameter of the sliding section is smaller than the inner diameter of the pre-tightening section, the second ejector rod is arranged between the pre-tightening seat and the pre-tightening cylinder, and the second ejector rod and the first ejector rod are coaxially arranged, the border of second ejector pin lower extreme is equipped with the second shoulder that extends outward, the external diameter of second shoulder is greater than the internal diameter of sliding section, the external diameter of second shoulder is less than the internal diameter of pretension section, the upper end of second ejector pin passes pretension section, sliding section in proper order from down and is connected with the bottom surface of pretension seat after, the second ejector pin cover is in pretension spring, pretension spring's upper end and pretension seat's bottom surface butt, pretension spring's lower extreme and pretension section's top surface butt, works as the second shoulder and the step face butt of pretension section upper end, the step face butt of first shoulder and mesopore section upper end, and when pretension section's bottom surface and the top surface butt of inflation seat, the distance of second ejector pin's lower extreme to pretension section bottom surface is greater than the distance of first ejector pin to the inflation seat top surface.
As a further improvement of the scheme, a first counter bore with a vertical axis is arranged in the center of the top surface of the pre-tightening seat, a boss which is cylindrical and coaxially arranged with the first counter bore is connected to the bottom surface of the pre-tightening seat, a second counter bore is coaxially arranged on the bottom surface of the boss, the second counter bore is communicated with the first counter bore, the upper end of the second ejector rod is sleeved into the second counter bore, a threaded hole is coaxially arranged on the upper end surface of the second ejector rod, a connecting bolt is arranged in the first counter bore, and the connecting bolt passes through the first counter bore from top to bottom and then is in threaded connection with the threaded hole.
The beneficial effects of the application are as follows: when the damping pull rod is inflated and sealed, the damping pull rod is clamped and positioned well through the clamping mechanism, the lower end of the damping pull rod is clamped and fixed in the lower clamping through hole, the upper part of the damping pull rod is clamped and fixed in the upper clamping through hole, a sealing needle matched with an inflation port of the damping pull rod is arranged in a containing groove of the lower end face of the first ejector rod, the first ejector rod sequentially passes through the upper hole section, the middle hole section and the lower hole section from bottom to top and then extends outwards, when the damping pull rod is inflated, the lower port of the inflation stepped hole is aligned with the inflation port at the upper end of the damping pull rod, downward pressure is applied to the inflation seat, meanwhile, the inflation seat moves downwards along the guide rod through the guide seat, and a second sealing ring on the bottom face of the inflation seat is in sealing contact with the upper end face of the damping pull rod, so that the lower hole section and the upper end face of the damping pull rod form an inflation cavity, the air supply device is communicated with the air inlet hole on the side surface of the air charging seat, air enters the air charging cavity through the air passage at the bottom of the air inlet hole, so that the air charging of the damping pull rod is realized, when the air pressure in the damping pull rod reaches a set value, downward pressure is applied to the upper end of the first ejector rod, the first ejector rod moves downwards along the upper hole section, the sealing needle is inserted into the air charging hole of the damping pull rod, the sealing of the damping pull rod is realized, after the air charging sealing is finished, the applied pressure is removed, the air charging seat can automatically restore to the original position under the action of the restoring spring, the efficiency of air charging sealing of the damping pull rod is improved, then a new sealing needle is installed in the accommodating groove again, the movable clamping piece is rotated, the upper fixed notch is separated from the upper movable notch, the lower fixed notch is separated from the lower movable notch, the inflated damping pull rod is detached, and the new damping pull rod is clamped again, the circular work is convenient and reliable to clamp and disassemble the damping pull rod, the efficiency is improved, two procedures of inflation and sealing are completed under the condition that the working platform is not replaced, the air tightness of the inflation sealing process is better maintained, the problem of gas leakage is avoided, the working steps are simplified, and the cost is saved.
The application is used for inflating and sealing the damping pull rod.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the application, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is an overall schematic of an embodiment of the present application;
FIG. 2 is a front cross-sectional view of a chuck, an inflatable seat and a guide seat according to an embodiment of the present application;
FIG. 3 is an enlarged view of a portion of the inflatable seat and guide seat of FIG. 2;
FIG. 4 is an exploded view of a clamping mechanism according to an embodiment of the present application;
fig. 5 is a front cross-sectional view of a pretension assembly according to an embodiment of the present application.
Detailed Description
The conception, specific structure, and technical effects produced by the present application will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present application. It is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present application based on the embodiments of the present application. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features of the application can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1 to 5, this is an embodiment of the present application, specifically:
an inflatable sealing device of a damper comprises an inflatable sealing mechanism and a clamping mechanism;
the clamping mechanism comprises a clamping part and a fixing part which are arranged up and down; the fixing part comprises a base 100 which is transversely arranged;
as shown in fig. 1, the clamping part includes a fixed clamping member 200 and a movable clamping member 300 arranged in a left-right direction;
as shown in fig. 4, the fixing clamp 200 includes a lower fixing clamp block 210, an upper fixing clamp block 220 disposed above the lower fixing clamp block 210, and a fixing connection block 230 disposed vertically between the upper fixing clamp block 220 and the lower fixing clamp block 210, the upper fixing clamp block 220 is fixedly connected with the lower fixing clamp block 210 through the fixing connection block 230, a lower wall surface of the lower fixing clamp block 210 is fixedly connected with an upper surface of the base 100, the movable clamp 300 includes a lower movable clamp block 310, an upper movable clamp block 320 disposed above the lower movable clamp block 310, a movable connection block 330 disposed vertically between the upper movable clamp block 320 and the lower movable clamp block 310, the upper movable clamp block 320 is fixedly connected with the lower movable clamp block 310 through the movable connection block 330, a first hinge member whose axis is disposed vertically is disposed between a rear portion of the lower movable clamp block 310 and a rear portion of the lower fixing clamp block 210 is provided between the parts in a bolt connection manner, the first hinge member mainly realizes the rotation between the fixed clamping member 200 and the movable clamping member 300, the rear portion of the lower fixed clamping block 210 is hinged with the rear portion of the lower movable clamping block 310 through the first hinge member, the right side surface of the front portion of the lower fixed clamping block 210 is provided with a semicircular lower fixed notch 211, the left side surface of the lower movable clamping block 310 is provided with a semicircular lower movable notch 311, the right side surface of the front portion of the upper fixed clamping block 220 is provided with a semicircular upper fixed notch 221, the left side surface of the upper movable clamping block 320 is provided with a semicircular upper movable notch 321, when the right side surface of the front portion of the lower fixed clamping block 210 is abutted with the left side surface of the lower movable clamping block 310, the right side surface of the front portion of the upper fixed clamping block 220 is abutted with the left side surface of the upper movable clamping block 320, the upper fixed notch 221 is abutted with the upper movable notch 321 to form a circular upper clamping through hole 240, the lower fixed notch 211 and the lower movable notch 311 are abutted to form a circular lower clamping through hole 250, the upper clamping through hole 240 and the lower clamping through hole 250 are coaxially arranged, and the axes of the upper clamping through hole 240 and the lower clamping through hole 250 are vertically arranged;
as shown in fig. 2 and 3, the inflatable sealing mechanism includes an inflatable seat 500 and a guide seat 400 that are connected with each other, the inflatable seat 500 and the guide seat 400 are disposed above the clamping portion, and the guide seat 400 performs a guiding function;
as shown in fig. 3, the inflatable seat 500 is provided with an inflatable stepped hole 510 with a vertical axis, the inflatable stepped hole 510 penetrates through the top surface and the bottom surface of the inflatable seat 500, the inflatable stepped hole 510 and the upper clamping through hole 240 are coaxially arranged, the inflatable stepped hole 510 comprises an upper hole section 511, a middle hole section 512 and a lower hole section 513 which are arranged from top to bottom, the upper hole section 511, the middle hole section 512 and the lower hole section 513 are coaxially arranged, the inner diameter of the upper hole section 511 is smaller than the inner diameter of the middle hole section 512, the inner diameter of the middle hole section 512 is smaller than the inner diameter of the lower hole section 513, an air inlet 520 is arranged on the side surface of the inflatable seat 500, an air channel 521 communicated with the lower hole section 513 is communicated with the bottom of the air inlet 520, a first ejector rod 530 is arranged in the upper hole section 511, a first shaft shoulder 531 extending outwards is arranged at the lower end of the first ejector rod 530, the outer diameter of the first shaft shoulder 531 is larger than the inner diameter of the upper hole section 511, the upper end of the first ejector rod 530 extends outwards after passing through the upper hole section 511 from bottom to top, the first ejector rod 530 is in transition fit with the upper hole section 511, the first shaft shoulder 531 is also in transition fit with the middle hole section 512, firstly, the sealing function can be achieved, secondly, the guiding function can be achieved, the first shaft shoulder 531 can be abutted against the upper step surface of the upper hole section 511, the lower end surface of the first ejector rod 530 is provided with a cylindrical accommodating groove 534, the accommodating groove 534 is coaxially arranged with the first ejector rod 530, the accommodating groove 534 is sleeved with a sealing needle 540, the sealing needle 540 is matched with an inflation inlet of a damping pull rod, the sealing needle 540 is generally used for blocking the inflation inlet of the damping pull rod, the bottom surface of the inflation seat 500 is provided with a second annular groove 550 coaxially arranged with the lower hole section 513, the second annular groove 550 is arranged at the edge of the lower end of the lower hole section 513, a second seal ring 551 is sleeved in the second annular groove 550;
as shown in fig. 2 and fig. 3, the guide holder 400 is connected to the side surface of the inflatable holder 500, the guide holder 400 is disposed above the upper fixed clamping block 220, the guide holder 400 is provided with two first guide holes 410 whose axes are vertically disposed, correspondingly, the upper fixed clamping block 220 is provided with two second guide holes 222 whose axes are vertically disposed, the positions of the two first guide holes 410 and the positions of the two second guide holes 222 are in one-to-one correspondence, a guide rod 420 is disposed between the first guide holes 410 and the second guide holes 222, an abutting joint 421 is connected to the upper end of the guide rod 420, the outer diameter of the abutting joint 421 is larger than the inner diameter of the first guide holes 410, the lower end of the guide rod 420 sequentially passes through the first guide holes 410 and the second guide holes 222 from top to bottom, the lower end of the guide rod 420 is connected with a fixed retainer 422, the outer diameter of the fixed retainer 422 is larger than the inner diameter of the second guide holes 222, a return spring 430 is disposed outside the guide rod 420, and the upper end of the return spring 430 is sleeved with the lower end of the first guide hole 410 and the lower end of the return spring 430 abuts against the lower end of the first guide hole 222.
When the damping pull rod is inflated and sealed, the damping pull rod is clamped and positioned by the clamping mechanism, the lower end of the damping pull rod is clamped and fixed in the lower clamping through hole 250, the upper part of the damping pull rod is clamped and fixed in the upper clamping through hole 240, a sealing needle 540 matched with an inflation port of the damping pull rod is arranged in a containing groove 534 on the lower end face of the first ejector rod 530, the first ejector rod 530 sequentially passes through the upper hole section 511, the middle hole section 512 and the lower hole section 513 from bottom to top and then extends out, when the damping pull rod is inflated, the lower port of the inflation stepped hole 510 is aligned with the inflation port on the upper end of the damping pull rod, downward pressure is applied to the inflation seat 500, simultaneously the inflation seat 500 moves downwards along the guide rod 420 by the guide seat 400, the second sealing ring 551 on the bottom surface of the inflation seat 500 is in sealing contact with the upper end face of the damping pull rod, so that the lower hole section 513 and the upper end face of the damping pull rod form an inflation cavity, the air supply device is communicated with the air inlet 520 at the side of the air charging seat 500, air enters the air charging chamber through the air passage 521 at the bottom of the air inlet 520, so that the air charging of the damping pull rod is realized, after the air pressure in the damping pull rod reaches a set value, downward pressure is applied to the upper end of the first ejector rod 530, the first ejector rod 530 moves downwards along the upper hole section 511, the sealing needle 540 is inserted into the air charging hole of the damping pull rod, so that the sealing of the damping pull rod is realized, after the air charging sealing is finished, the applied pressure is removed, the air charging seat 500 can automatically restore to the original position under the action of the reset spring 430, so that the efficiency of the air charging sealing of the damping pull rod is improved, then a new sealing needle 540 is installed in the accommodating groove 534 again, the movable clamping piece 300 is rotated, the upper fixing notch 221 is separated from the upper movable notch 321, the lower fixing notch 211 is separated from the lower movable notch 311, the inflated damping pull rod is detached, and then a new damping pull rod is clamped, so that the damping pull rod is circularly clamped, the damping pull rod is convenient and reliable to detach, the efficiency is improved, two procedures of inflation and sealing are completed under the condition that a working platform is not replaced, the air tightness of the inflation sealing process is better maintained, the problem of gas leakage is avoided, the working steps are simplified, and the cost is saved.
Further, as shown in fig. 2, the lower clamping through hole 250 has a stepped hole shape, and an inner diameter of an upper port of the lower clamping through hole 250 is larger than an inner diameter of a lower port of the lower clamping through hole 250. The lower clamping through hole 250 is a two-section stepped hole, the lower end of the damping pull rod is abutted with the stepped surface in the lower clamping through hole 250, and the damping pull rod is clamped and simultaneously supported.
Further as a preferred embodiment, as shown in fig. 1 and 3, a fixed handle 340 is disposed on the right side of the lower movable clamping block 310, one end of the fixed handle 340 is connected with a second hinge member whose axis is disposed to extend left and right, the second hinge member may be a rotation bolt or a rotation shaft, the fixed handle 340 is hinged to the right side surface of the front portion of the lower movable clamping block 310 through the second hinge member, the other end of the fixed handle 340 extends to the front side, a positioning protrusion 341 is disposed on the lower side surface of the middle portion of the fixed handle 340, a positioning groove 110 matched with the positioning protrusion 341 is disposed on the upper surface of the base 100, and when the positioning protrusion 341 is clamped with the positioning groove 110, the right side surface of the front portion of the lower fixed clamping block 210 is abutted to the left side surface of the lower movable clamping block 310. The fixed handle 340 can conveniently control the opening and closing state of the clamping part, when the damping pull rod is disassembled, the fixed handle 340 is pulled up to separate the positioning protrusion 341 from the positioning groove 110, and the fixed handle 340 is pulled to rotate the lower movable clamping block 310 around the first hinge member, so that the whole movable clamping member 300 is driven to rotate, and the upper fixed notch 221 and the upper movable notch 321, and the lower fixed notch 211 and the lower movable notch 311 are separated from each other; when the damping pull rod is clamped, the fixed handle 340 is pulled in the opposite direction, so that the upper fixed notch 221 and the upper movable notch 321, the lower fixed notch 211 and the lower movable notch 311 are mutually closed, and then the fixed handle 340 is rocked, so that the positioning protrusion 341 and the positioning groove 110 are clamped tightly, and the fixed handle 340 is locked, so that the operation is convenient.
Further, as shown in fig. 2 and 4, a first through groove 120 is formed in the base 100 directly below the lower clamping through hole 250, and the first through groove 120 penetrates the upper side and the lower side of the base 100. The first through groove 120 is used for providing space for the bushing of the damping pull rod when the damping pull rod is clamped, so that interference is avoided.
Further as a preferred embodiment, as shown in fig. 2 and 4, the fixing portion further includes a base 130 disposed at a lower side of the base 100, the base 130 is disposed laterally, an upper surface of the base 130 is fixedly connected to a lower surface of the base 100, and the base 130 is laterally provided with a second through slot 131 penetrating an upper side and a lower side of the base 130, and the second through slot 131 is disposed directly under the first through slot 120. The second through groove 131 enlarges the placement space of the bushing so that different damping tie rods can be satisfied.
Further as a preferred embodiment, as shown in fig. 3, a first annular groove 532 is provided on a side wall of the first ejector rod 530, a first sealing ring 533 is sleeved in the first annular groove 532, and the first ejector rod 530 is in sliding sealing contact with an inner wall of the upper hole section 511 through the first sealing ring 533. The tightness between the first push rod 530 and the inflatable stepped hole 510 can be improved, so as to ensure the air tightness in the inflatable chamber, and a plurality of first annular grooves 532 can be arranged according to the requirement, and in this embodiment, two first annular grooves 532 are arranged in an up-down interval manner.
Further as a preferred embodiment, as shown in fig. 3, the inner wall of the air inlet 520 is provided with an internal thread, the inflatable sealing mechanism includes an inflatable tube 522, an outer side wall of the outlet end of the inflatable tube 522 is provided with an external thread matching with the internal thread, and the inflatable tube 522 is in threaded connection with the air inlet 520. The tightness between the air charging pipe 522 and the air inlet hole 520 can be improved by the threaded connection mode, meanwhile, the pressure gauge can be installed on the air charging pipe 522, and when the air charging is carried out, the pressure of the air charging of the damper can be detected through the pressure gauge, so that the operation and the observation of workers are facilitated.
Further as a preferred embodiment, as shown in fig. 4, the first hinge member is a rotation shaft 350 with a vertical axis, a fixed hinge hole 260 is formed at the rear of the lower fixed clamping block 210 and the rear of the upper fixed clamping block 220, a movable hinge hole 360 is formed at the rear of the upper movable clamping block 320 and the rear of the lower movable clamping block 310, the fixed hinge hole 260 is coaxially disposed with the movable hinge hole 360, the upper end of the rotation shaft 350 passes through the movable hinge hole 360 and the fixed hinge hole 260 above the clamping part, the lower end of the rotation shaft 350 passes through the movable hinge hole 360 and the fixed hinge hole 260 below the clamping part, and the movable clamping member 300 is hinged with the fixed clamping member 200 through the rotation shaft 350. This may make the structure simpler and reduce parts, thereby reducing manufacturing costs, and the rear portion of the upper movable clamp block 320 and the rear portion of the lower movable clamp block 310 are rotated synchronously about the rotation axis 350, improving the clamping force of the upper movable clamp block 320 and the lower movable clamp block 310.
Further as a preferred embodiment, as shown in fig. 5, the inflatable sealing mechanism further comprises a pre-tightening assembly 600, the pre-tightening assembly 600 is arranged above the inflatable seat 500, the pre-tightening assembly 600 comprises a pre-tightening seat 610, a pre-tightening cylinder 620, a pre-tightening spring 630 and a second ejector rod 640, the pre-tightening cylinder 620 is arranged below the pre-tightening seat 610, a pre-tightening stepped hole 621 with a vertical axis is arranged in the pre-tightening cylinder 620, the pre-tightening stepped hole 621 penetrates through the top surface and the bottom surface of the pre-tightening cylinder 620, the pre-tightening stepped hole 621 comprises a sliding section 622 and a pre-tightening section 623 which are arranged from top to bottom, the sliding section 622 and the pre-tightening section 623 are coaxially arranged, the inner diameter of the pre-tightening section 623 is larger than the outer diameter of the first ejector rod 530, the inner diameter of the sliding section 622 is smaller than the inner diameter of the pre-tightening section 623, the second ejector rod 640 is arranged between the pre-tightening seat 610 and the pre-tightening cylinder 620, the second ejector rod 640 is coaxially arranged with the first ejector rod 530, the edge of the lower end of the second ejector rod 640 is provided with a second outward extending shoulder 641, the outer diameter of the second shoulder 641 is larger than the inner diameter of the sliding section 622, the outer diameter of the second shoulder 641 is smaller than the inner diameter of the pre-tightening section 623, the upper end of the second ejector rod 640 sequentially passes through the pre-tightening section 623 and the sliding section 622 from bottom to top and then is connected with the bottom surface of the pre-tightening seat 610, the second ejector rod 640 is sleeved in the pre-tightening spring 630, the upper end of the pre-tightening spring 630 is abutted with the bottom surface of the pre-tightening seat 610, the lower end of the pre-tightening spring 630 is abutted with the top surface of the pre-tightening cylinder 620, when the second shoulder 641 is abutted with the step surface of the upper end of the pre-tightening section 623, the first shoulder 531 is abutted with the step surface of the upper end of the middle hole section 512, and the bottom surface of the pre-tightening cylinder 620 is abutted with the top surface of the inflatable seat 500, the distance from the lower end of the second push rod 640 to the bottom surface of the pre-tightening cylinder 620 is greater than the distance from the upper end surface of the first push rod 530 to the top surface of the inflatable seat 500. When the air charging seat 500 is used, the part, extending out of the upper end of the first ejector rod 530, is sleeved into the pre-tightening cylinder 620, the lower end face of the pre-tightening cylinder 620 is abutted against the top face of the air charging seat 500, the external force application power source applies downward pressure to the pre-tightening seat 610, at the moment, the elasticity of the pre-tightening spring 630 is larger than that of the return spring 430, the pre-tightening seat 610 downwards presses the air charging seat 500 through the pre-tightening spring 630 and the pre-tightening cylinder 620, the return spring 430 is compressed, the air charging seat 500 downwards moves along the guide rod 420 through the guide seat 400, the bottom face of the air charging seat 500 is in sealing contact with the upper end face of the damping pull rod, at the moment, the damping pull rod is inflated, at the moment, the pre-tightening seat 610 is downwards pressed again, the pre-tightening spring 630 is compressed, the second ejector rod 640 downwards moves, the second ejector rod 640 upwards pushes the first ejector rod 530 downwards, and accordingly the sealing needle 540 is inserted into the air charging opening of the damping pull rod, and sealing of the damping pull rod is achieved.
Further as a preferred embodiment, a first counter bore 611 with a vertical axis is provided at the center of the top surface of the pre-tightening seat 610, a boss 612 with a cylindrical shape is connected to the bottom surface of the pre-tightening seat 610, a second counter bore 613 is coaxially provided on the bottom surface of the boss 612, the second counter bore 613 is communicated with the first counter bore 611, the upper end of the second ejector rod 640 is sleeved in the second counter bore 613, a threaded hole 642 is coaxially provided on the upper end surface of the second ejector rod 640, a connecting bolt is provided in the first counter bore 611, and the connecting bolt passes through the first counter bore 611 from top to bottom and then is in threaded connection with the threaded hole 642. The connection firmness of the second push rod 640 and the pre-tightening seat 610 is improved, and the phenomenon that the second push rod 640 inclines in the process of being pressed down is prevented.
While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (8)
1. An inflatable sealing apparatus for a damper, characterized in that: comprises an inflatable sealing mechanism and a clamping mechanism;
the clamping mechanism comprises a clamping part and a fixing part which are arranged up and down; the fixing part comprises a base which is transversely arranged;
the clamping part comprises a fixed clamping piece and a movable clamping piece which are arranged left and right;
the fixed clamping piece comprises a lower fixed clamping block, an upper fixed clamping block arranged above the lower fixed clamping block and a fixed connecting block vertically arranged between the upper fixed clamping block and the lower fixed clamping block, wherein the upper fixed clamping block is fixedly connected with the lower fixed clamping block through the fixed connecting block, the lower wall surface of the lower fixed clamping block is fixedly connected with the upper surface of the base, the movable clamping piece comprises a lower movable clamping block, an upper movable clamping block arranged above the lower movable clamping block and a movable connecting block vertically arranged between the upper movable clamping block and the lower movable clamping block, the upper movable clamping block is fixedly connected with the lower movable clamping block through the movable connecting block, a first hinge piece with a vertical axis is arranged between the rear part of the lower movable clamping block and the rear part of the lower fixed clamping block, the rear part of the lower fixed clamping block is hinged with the rear part of the lower movable clamping block through the first hinge piece, the right side surface of the front part of the lower fixed clamping block is provided with a semicircular lower fixed notch, the left side surface of the lower movable clamping block is provided with a semicircular lower movable notch, the right side surface of the front part of the upper fixed clamping block is provided with a semicircular upper fixed notch, the left side surface of the upper movable clamping block is provided with a semicircular upper movable notch, when the right side surface of the front part of the lower fixed clamping block is abutted with the left side surface of the lower movable clamping block, the right side surface of the front part of the upper fixed clamping block is abutted with the left side surface of the upper movable clamping block, the upper fixed notch is abutted with the upper movable notch to form a circular upper clamping through hole, the lower fixed notch is abutted with the lower movable notch to form a circular lower clamping through hole, the upper clamping through hole and the lower clamping through hole are coaxially arranged, and the axes of the upper clamping through hole and the lower clamping through hole are vertically arranged;
the inflatable sealing mechanism comprises an inflatable seat and a guide seat which are connected with each other, and the inflatable seat and the guide seat are arranged above the clamping part;
the air charging seat is provided with an air charging stepped hole with a vertical axis, the air charging stepped hole penetrates through the top surface and the bottom surface of the air charging seat, the air charging stepped hole and the upper clamping through hole are coaxially arranged, the air charging stepped hole comprises an upper hole section, a middle hole section and a lower hole section which are arranged from top to bottom, the upper hole section, the middle hole section and the lower hole Duan Tongzhou are arranged, the inner diameter of the upper hole section is smaller than that of the middle hole section, the inner diameter of the middle hole section is smaller than that of the lower hole section, the side surface of the air charging seat is provided with an air inlet, the bottom of the air inlet is communicated with an air passage communicated with the lower hole section, a first ejector rod is arranged in the upper hole section, the edge of the lower end of the first ejector rod is provided with a first shaft shoulder which extends outwards, the outer diameter of the first shaft shoulder is larger than that of the upper hole section, the upper end of the first ejector rod passes through the upper hole section from bottom to top, the lower end of the first ejector rod is provided with a cylindrical accommodating groove which is coaxially arranged, the accommodating groove is sleeved with the first coaxial with the first accommodating groove, the accommodating groove is sleeved with the second annular groove 37is arranged at the lower end of the second annular groove, and the second annular groove is arranged at the lower end of the second annular groove is arranged at the lower sealing seat;
the guide seat is connected with the side face of the inflatable seat, the guide seat is arranged above the upper fixed clamping block, the guide seat is provided with a first guide hole with two axes arranged vertically, the upper fixed clamping block is correspondingly provided with a second guide hole with two axes arranged vertically, the positions of the two first guide holes and the positions of the two second guide holes are in one-to-one correspondence, a vertically arranged guide rod is arranged between the first guide hole and the second guide hole, the upper end of the guide rod is connected with a butt joint, the outer diameter of the butt joint is larger than the inner diameter of the first guide hole, the lower end of the guide rod sequentially passes through the first guide hole and the second guide hole from top to bottom, the lower end of the guide rod is connected with a fixed check ring, the outer diameter of the fixed check ring is larger than the inner diameter of the second guide hole, the outer side of the guide rod is sleeved with a reset spring, the upper end of the reset spring is in butt joint with the lower end of the first guide hole, and the lower end of the reset spring is in butt joint with the upper end of the second guide hole;
a fixed handle is arranged on the right side of the lower movable clamping block, one end of the fixed handle is connected with a second hinge part with an axis extending left and right, the fixed handle is hinged with the right side surface of the front part of the lower movable clamping block through the second hinge part, the other end of the fixed handle extends to the front side, a positioning bulge is arranged on the lower side surface of the middle part of the fixed handle, a positioning groove matched with the positioning bulge is arranged on the upper surface of the base, and when the positioning bulge is clamped with the positioning groove, the right side surface of the front part of the lower fixed clamping block is abutted with the left side surface of the lower movable clamping block;
the inflatable sealing mechanism further comprises a pre-tightening assembly, the pre-tightening assembly is arranged above the inflatable seat, the pre-tightening assembly comprises a pre-tightening seat, a pre-tightening cylinder, a pre-tightening spring and a second ejector rod, the pre-tightening cylinder is arranged below the pre-tightening seat, a pre-tightening stepped hole with a vertical axis is arranged in the pre-tightening cylinder, the pre-tightening stepped hole penetrates through the top surface and the bottom surface of the pre-tightening cylinder, the pre-tightening stepped hole comprises a sliding section and a pre-tightening section which are arranged from top to bottom, the sliding section and the pre-tightening section are coaxially arranged, the inner diameter of the pre-tightening section is larger than the outer diameter of the first ejector rod, the inner diameter of the sliding section is smaller than the inner diameter of the pre-tightening section, the second ejector rod is arranged between the pre-tightening seat and the pre-tightening cylinder, the second ejector rod and the first ejector rod are coaxially arranged, the edge of the lower end of the second ejector rod is provided with a second shoulder which extends outwards, the outer diameter of the second shoulder is larger than the inner diameter of the sliding section, the outer diameter of the second shoulder is smaller than the inner diameter of the pre-tightening section, the upper end of the second ejector rod sequentially passes through the pre-tightening section and the sliding section from bottom to top and then is connected with the bottom surface of the pre-tightening seat, the second ejector rod is sleeved in the pre-tightening spring, the upper end of the pre-tightening spring is abutted with the bottom surface of the pre-tightening seat, the lower end of the pre-tightening spring is abutted with the top surface of the pre-tightening cylinder, when the second shoulder is abutted with the step surface of the upper end of the pre-tightening section, the first shoulder is abutted with the step surface of the upper end of the middle hole section, and when the bottom surface of the pre-tightening cylinder is abutted with the top surface of the inflatable seat, the distance from the lower end of the second ejector rod to the bottom surface of the pre-tightening cylinder is larger than the distance from the upper end surface of the first ejector rod to the top surface of the inflatable seat;
the external force application power source applies force to the inflatable seat through the pre-tightening assembly, when the inflatable seat is used, the extending part of the upper end of the first ejector rod is sleeved into the pre-tightening barrel, the lower end face of the pre-tightening barrel is abutted to the top face of the inflatable seat, the external force application power source applies downward pressure to the pre-tightening seat, at the moment, the elasticity of the pre-tightening spring is larger than that of the return spring, the pre-tightening spring and the pre-tightening barrel downwards press the inflatable seat, the return spring is compressed, the inflatable seat downwards moves along the guide rod through the guide seat, the bottom face of the inflatable seat is in sealing contact with the upper end face of the damping pull rod, at the moment, the damping pull rod is inflated, when the pre-tightening seat is downwards pressed again, the pre-tightening spring is compressed, the second ejector rod downwards moves against the first ejector rod, so that the sealing needle is inserted into the inflation port of the damping pull rod, and sealing of the damping pull rod is achieved.
2. The inflatable sealing apparatus of a damper as recited in claim 1, wherein: the lower clamping through hole is in a stepped hole shape, and the inner diameter of the upper port of the lower clamping through hole is larger than the inner diameter of the lower port of the lower clamping through hole.
3. The inflatable sealing apparatus of a damper as recited in claim 1, wherein: a first through groove is formed in the base right below the lower clamping through hole, and the first through groove penetrates through the upper side and the lower side of the base.
4. A gas-filled sealing device for a damper according to claim 3, wherein: the fixed part is also including setting up the base in the base downside, the base transversely sets up, the upper surface of base and the lower surface fixed connection of base the base transversely is equipped with the second through groove of the upside and the downside of lining up the base, the second through groove sets up under first through groove.
5. The inflatable sealing apparatus of a damper as recited in claim 1, wherein: the side wall of the first ejector rod is provided with a first annular groove, a first sealing ring is sleeved in the first annular groove, and the first ejector rod is in sliding sealing contact with the inner wall of the upper hole section through the first sealing ring.
6. The inflatable sealing apparatus of a damper as recited in claim 1, wherein: the inner wall of the air inlet hole is provided with an internal thread, the inflatable sealing mechanism comprises an inflatable tube, the outer side wall of the outlet end of the inflatable tube is provided with an external thread matched with the internal thread, and the inflatable tube is in threaded connection with the air inlet hole.
7. The inflatable sealing apparatus of a damper as recited in claim 1, wherein: the first hinge is the axis and is the axis of rotation of vertical setting the rear portion of lower fixed clamp splice and the rear portion of last fixed clamp splice all are equipped with fixed hinge hole the rear portion of last movable clamp splice and the rear portion of lower movable clamp splice all are equipped with movable hinge hole, fixed hinge hole and movable hinge hole coaxial setting, movable hinge hole and fixed hinge hole that are in the clamping part top are passed to the upper end of axis of rotation, movable hinge hole and fixed hinge hole that are in the clamping part below are passed to the lower extreme of axis of rotation, movable clamp splice passes through the axis of rotation and is articulated with fixed clamp splice.
8. The inflatable sealing apparatus of a damper as recited in claim 1, wherein: the center of pretension seat top surface is equipped with the axis and is the first counter bore of vertical setting pretension seat bottom surface is connected with and sets up cylindric boss with first counter bore coaxial the bottom surface of boss is provided with the second counter bore coaxially, the second counter bore link up with first counter bore, the upper end of second ejector pin is in the second counter bore is sleeved in the up end coaxial the second ejector pin is provided with the screw hole be equipped with connecting bolt in the first counter bore, connecting bolt passes first counter bore back and screw hole threaded connection from last down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321894.7A CN110005743B (en) | 2019-04-22 | 2019-04-22 | Inflatable sealing equipment of damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321894.7A CN110005743B (en) | 2019-04-22 | 2019-04-22 | Inflatable sealing equipment of damper |
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| CN110005743A CN110005743A (en) | 2019-07-12 |
| CN110005743B true CN110005743B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910321894.7A Active CN110005743B (en) | 2019-04-22 | 2019-04-22 | Inflatable sealing equipment of damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110328810A (en) * | 2019-07-18 | 2019-10-15 | 佛山科学技术学院 | A kind of mold of rubber bushing vulcanization |
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Address after: No.33, Guangyun Road, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan University Country or region after: China Address before: No.33, Guangyun Road, Nanhai District, Foshan City, Guangdong Province Patentee before: FOSHAN University Country or region before: China |