CN113606227A - High-pressure self-locking brake pull rod quick connecting piece - Google Patents
High-pressure self-locking brake pull rod quick connecting piece Download PDFInfo
- Publication number
- CN113606227A CN113606227A CN202110783433.9A CN202110783433A CN113606227A CN 113606227 A CN113606227 A CN 113606227A CN 202110783433 A CN202110783433 A CN 202110783433A CN 113606227 A CN113606227 A CN 113606227A
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- locking
- pipeline
- pipe
- wall
- 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.)
- Pending
Links
- 239000011324 bead Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims description 74
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
- F16B7/0413—Clamping or clipping connections for rods or tubes being coaxial for tubes using the innerside thereof
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
Abstract
The invention relates to a high-pressure self-locking brake pull rod quick connecting piece, which comprises: the locking device comprises a first pipeline, a first connecting pipe, a limiting pipe, a second pipeline, a second connecting pipe, a locking sleeve, an unlocking pipe and a plurality of locking beads. According to the invention, the locking balls are matched with the locking sleeve to fix the second connecting pipe at the designated position, so that the first pipeline and the second pipeline are connected quickly and efficiently, meanwhile, the condition that the connecting part is loosened due to long-time frequent use of the brake pull rod is effectively avoided, the service life of the connecting piece is effectively prolonged while the connection stability is ensured, and the use efficiency of the brake pull rod using the connecting piece is effectively improved.
Description
Technical Field
The invention relates to the technical field of brake pull rod connection, in particular to a high-pressure self-locking brake pull rod quick connecting piece.
Background
The pull-off rod is also called an insulating operation rod, an insulating rod, a high-voltage operation rod and a commonly-known multi-purpose brake pull rod, the high-voltage pull-off rod is an insulating tool for operating electrified equipment in a short time, and is mainly used for opening and closing, installing and dismantling a temporary grounding wire, discharging operation, treating foreign matters on an electrified body, performing high-voltage measurement, testing, operation directly contacting with the electrified body and other operations.
The existing high-voltage brake pull rod generally comprises a rod body and a hook body fixed on the rod body, and the high-voltage brake pull rod can be divided into two types according to a combination form, namely a connector type brake pull rod and a telescopic type brake pull rod. The mouthpiece is relatively durable and the telescopic is relatively easy to operate.
The existing interface type pull-brake rod is insecure in connection, usually adopts threaded connection or bolts for fixing, and after long-time frequent use, the problem of looseness of the connection can be caused, so that the pull-brake rod cannot be fastened and connected, and the use efficiency is poor.
Disclosure of Invention
Therefore, the invention provides a high-pressure self-locking quick connecting piece for a brake pull rod, which is used for solving the problem of low service efficiency of the brake pull rod caused by the fact that the brake pull rod cannot be quickly and stably connected in the prior art.
In order to achieve the above object, the present invention provides a high-pressure self-locking brake pull rod quick connector, comprising:
the end part of the first pipeline is provided with a first connecting pipe, the end part of the first connecting pipe is provided with a limiting pipe, the outer diameter of the limiting pipe is larger than that of the first connecting pipe, and a slope is arranged at the connecting part of the outer wall of the limiting pipe and the outer wall of the first connecting pipe; a plurality of through grooves are uniformly formed in the first connecting pipe close to the side wall of the limiting pipe, and slopes are arranged at the connecting positions of the two sides of the groove and the first connecting pipe;
a second connecting pipe is arranged at the end part of the second pipeline, the outer diameter of the second connecting pipe is the same as the inner diameter of the first connecting pipe, and an annular groove is formed in the position, corresponding to the through groove, of the outer wall of the second connecting pipe;
the inner diameter of the locking sleeve sleeved outside the second connecting pipe is the same as the outer diameter of the second connecting pipe, an unlocking pipe is arranged at the end part, close to the first pipeline, of the locking sleeve, the inner diameter of the unlocking pipe is the same as the outer diameter of the limiting pipe, and a slope is arranged at the joint of the inner wall of the unlocking pipe and the inner wall of the locking sleeve;
the locking balls are respectively positioned in the corresponding through grooves and used for locking the second connecting pipe in the first connecting pipe when the first connecting pipe is connected with the second connecting pipe; when the first connecting pipe and the second connecting pipe are connected, the unlocking pipe is sleeved on the outer wall of the limiting pipe, the locking sleeve is sleeved on the outer wall of the first connecting pipe to constrain the moving range of each locking bead, part of each locking bead is positioned outside the through groove and inside the groove, the second connecting pipe is locked at a specified position by constraining the moving range of the second connecting pipe in the horizontal direction, when the first connecting pipe is pulled, the slope of the side wall of the groove applies pressure outside the inclined pipeline to the locking bead, at the moment, the inner wall of the locking sleeve applies pressure in the direction of the inside of the pipeline to each locking bead to constrain each locking bead, and all the locking beads cannot move into the through groove; when the first connecting pipe is unlocked to the second connecting pipe, the locking sleeve is moved towards the first pipeline until the unlocking sleeve is sleeved on the outer wall of the through groove, when the first connecting pipe is pulled, the slope of the side wall of the groove exerts pressure on the locking beads in an inclined pipeline outer side, at the moment, the inner wall of the unlocking sleeve does not exert pressure on the locking beads in the pipeline inner direction, when the second connecting pipe is moved, the outer wall of the groove of the second connecting pipe, which is far away from the second pipeline, is positioned at the inner wall of the through groove, each locking bead is partially positioned outside the through groove, the part of each locking bead, which is positioned outside the through groove, is positioned at the gap between the outer wall of the first connecting pipe and the inner wall of the unlocking pipe, and the moving range of the second connecting pipe in the horizontal direction cannot be restricted so as to unlock the second connecting pipe by the first connecting pipe.
Further, the inner diameter of the end part of the through groove close to one side of the inner wall of the first connecting pipe is smaller than the diameter of the locking bead, so that the locking bead is prevented from falling off from one side of the through groove close to the inner wall of the first connecting pipe when the first connecting pipe is not locked with the second connecting pipe; a slope is arranged at the position where the radius of the through groove changes, so that the locking bead is prevented from being damaged.
Furthermore, the diameter of the locking bead is larger than the wall thickness of the first connecting pipe, so that the situation that the first connecting pipe cannot lock the second connecting pipe due to the fact that the locking bead is extruded to the inside of the through groove by the slope of the groove and the locking sleeve cannot apply pressure to the locking bead when the first connecting pipe is pulled to lock the second connecting pipe is prevented.
Further, still be equipped with the sealed tube inside the first connecting pipe, the sealed tube can be along axial displacement in the first connecting pipe, and the sealed tube outer wall diameter is the same with first connecting pipe inner wall and the sealed tube outer wall is equipped with the sealing washer for seal the gap of first connecting pipe and sealed tube, be close to at the sealed tube the one end of second connecting pipe is equipped with the sealing washer for seal the gap between second connecting pipe and the sealed tube when first connecting pipe locking second connecting pipe.
Furthermore, a sealing spring is arranged in the first connecting pipe, one end of the sealing spring is connected with one end of the first connecting pipe, which is close to the first pipeline, and the other end of the sealing spring is connected with one end of the sealing pipe, which is close to the first pipeline; when first connecting pipe locking second connecting pipe, second connecting pipe tip is right the sealing tube is applyed along the axial to the pressure of second pipeline, and sealing spring applys reverse elasticity to the sealing tube, through increasing the extrusion force between second connecting pipe and the sealing tube in order to improve the leakproofness between sealing tube and the second connecting pipe.
Furthermore, an annular groove is formed in the inner wall of the locking sleeve, which is close to one end of the first pipeline, a return spring is arranged in the annular groove, one end of the return spring is connected with the locking sleeve in a reverse direction, and the other end of the return spring is connected with the first pipeline; when the restraint on the locking balls is released, force along the direction of the first pipeline is applied to the locking sleeve to move the locking sleeve to the corresponding position, when the connection or the removal of the second connecting pipe is completed, the force applied to the locking sleeve is stopped, and the reset spring applies reverse elastic force to the locking sleeve and moves the locking sleeve to the initial position so that the locking sleeve restrains each locking ball.
Furthermore, the limiting pipe is close to one end of the second pipeline, a positioning groove is formed in the end, close to the second pipeline, of the second connecting pipe, a positioning protrusion is arranged at one end of the second connecting pipe, and when the first pipeline and the second pipeline are connected, the positioning protrusion is inserted into the corresponding positioning groove to complete positioning of the first pipeline.
Furthermore, a plurality of annular threads are arranged on the inner walls of the first pipeline and the second pipeline respectively, so that when the first pipeline and the second pipeline are connected with the connecting rod, the sealing performance of the first pipeline and the connecting rod and the sealing performance of the second pipeline and the connecting rod are improved.
Compared with the prior art, the connecting piece has the advantages that the locking balls are matched with the locking sleeve to fix the second connecting pipe at the designated position, so that the first pipeline and the second pipeline are connected quickly and efficiently, meanwhile, the situation that the connecting part is loosened due to frequent use of the brake pull rod for a long time is effectively avoided, the connecting stability is guaranteed, meanwhile, the service life of the connecting piece is effectively prolonged, and the use efficiency of the brake pull rod using the connecting piece is effectively improved.
Furthermore, the inner diameter of the end part of the through groove close to one side of the inner wall of the first connecting pipe is smaller than the diameter of the locking bead, and the slope is arranged at the position where the radius of the through groove changes.
Furthermore, the diameter of the locking bead is larger than the wall thickness of the first connecting pipe, and the diameter of the locking bead is set to be larger than the wall thickness of the first connecting pipe, so that when the first connecting pipe locks the second connecting pipe, the situation that the first connecting pipe cannot lock the second connecting pipe due to the fact that the locking sleeve cannot apply pressure to the locking bead as the first connecting pipe is pulled to enable the slope at the groove to extrude the locking bead into the through groove can be effectively prevented, the stability of the first connecting pipe when the second connecting pipe is locked can be effectively improved, and the use efficiency of the brake pull rod using the connecting piece is further improved.
Furthermore, a sealing pipe is arranged in the first connecting pipe, and the sealing pipe can be connected with the second connecting pipe by using the sealing pipe, so that the space in the second connecting pipe is effectively sealed, and the use efficiency of the brake pull rod using the connecting piece is further improved.
Further, a sealing spring is arranged in the first connecting pipe, when the first connecting pipe locks the second connecting pipe, the end part of the second connecting pipe exerts pressure on the sealing pipe along the axial direction to the second pipeline, the sealing spring exerts reverse elastic force on the sealing pipe, the sealing performance between the sealing pipe and the second connecting pipe is improved by increasing the extrusion force between the second connecting pipe and the sealing pipe, the space inside the second connecting pipe can be further sealed, and the use efficiency of the brake pull rod using the connecting piece is further improved.
Furthermore, an annular groove is formed in the inner wall of the locking sleeve, which is close to one end of the first pipeline, a return spring is arranged in the annular groove, when the constraint on the locking beads is released, force in the direction of the first pipeline is applied to the locking sleeve to move the locking sleeve to a corresponding position, when the connection or the removal of the second connecting pipe is completed, the force applied to the locking sleeve is stopped, and the return spring applies reverse elastic force to the locking sleeve to move the locking sleeve to an initial position so that the locking sleeve constrains each locking bead. The stability when the first connecting pipe locks the second connecting pipe is further improved, and simultaneously, the use efficiency of the brake pull rod using the connecting piece is further improved.
Furthermore, one end of the limiting pipe, which is close to the second pipeline, is provided with a positioning groove, and one end of the second connecting pipe, which is close to the second pipeline, is provided with a positioning bulge.
Furthermore, the inner wall of the first pipeline and the inner wall of the second pipeline are both provided with a plurality of annular threads, and by the arrangement of the annular threads, when the rod piece is connected with the first pipeline or the second pipeline, the rod piece can be stably connected with the first pipeline or the second pipeline, the sealing property between the rod piece and the first pipeline or the second pipeline is ensured, the stability when the first connecting pipe locks the second connecting pipe is further improved, and the use efficiency of the brake pull rod using the connecting piece is further improved.
Drawings
Fig. 1 is a schematic structural view of the high-pressure self-locking brake pull rod quick connector of the invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural view of a high-voltage self-locking brake pull rod quick connector according to the present invention. The invention relates to a high-pressure self-locking brake pull rod quick connecting piece, which comprises:
the pipeline comprises a first pipeline 1, wherein a first connecting pipe 11 is arranged at the end part of the first pipeline 1, a limiting pipe 12 is arranged at the end part of the first connecting pipe 11, the outer diameter of the limiting pipe 12 is larger than that of the first connecting pipe 11, and a slope is arranged at the connecting part of the outer wall of the limiting pipe 12 and the outer wall of the first connecting pipe 11; a plurality of through grooves 13 are uniformly formed in the side wall of the first connecting pipe 11 close to the limiting pipe 12, and slopes are arranged at the connecting positions of the two sides of the groove 22 and the first connecting pipe 11;
a second connecting pipe 21 is arranged at the end part of the second pipeline 2, the outer diameter of the second connecting pipe 21 is the same as the inner diameter of the first connecting pipe 11, and an annular groove 22 is arranged at the position of the outer wall of the second connecting pipe 21 corresponding to the through groove 13;
the locking sleeve 3 is sleeved outside the second connecting pipe 21, the inner diameter of the locking sleeve 3 is the same as the outer diameter of the second connecting pipe 21, an unlocking pipe 31 is arranged at the end part, close to the first pipeline 1, of the locking sleeve 3, the inner diameter of the unlocking pipe 31 is the same as the outer diameter of the limiting pipe 12, and a slope is arranged at the joint of the inner wall of the unlocking pipe 31 and the inner wall of the locking sleeve 3;
a plurality of locking beads 4, each locking bead 4 being located in a corresponding through groove 13 for locking the second connection pipe 21 in the first connection pipe 11 when the first connection pipe 11 and the second connection pipe 21 are connected.
When the first connecting pipe 11 and the second connecting pipe 21 are connected, the unlocking pipe 31 is sleeved on the outer wall of the limiting pipe 12, the locking sleeve 3 is sleeved on the outer wall of the first connecting pipe 11 to restrict the moving range of each locking bead 4, each locking bead 4 has a part which is positioned outside the through groove 13, and a part of each locking bead 4 which is positioned outside the through groove 13 is positioned in the groove 22, the moving range of the second connecting pipe 21 in the horizontal direction is restricted to lock the second connecting pipe 21 at a specified position, when the first connecting pipe 11 is pulled, the slope of the side wall of the groove 22 applies pressure which inclines to the outer side of the pipeline to the locking bead 4, at the moment, the inner wall of the locking sleeve 3 applies pressure towards the inner direction of the pipeline to each locking bead 4 to restrict each locking bead 4, and all the locking beads 4 cannot move into the through groove 13; when the locking of the first connecting pipe 11 to the second connecting pipe 21 is released, the locking sleeve 3 is moved towards the first pipeline 1 until the unlocking pipe 31 is sleeved on the outer wall of the through groove 13, when the first connecting pipe 11 is pulled, the slope of the side wall of the groove 22 applies pressure to the locking beads 4 obliquely to the outside of the pipeline, at this time, the inner wall of the unlocking sleeve does not apply pressure to each locking bead 4 in the direction of the inside of the pipeline, when the second connecting pipe 21 is moved, the outer wall of the groove 22 of the second connecting pipe 21, which is far away from the second pipeline 2, is located at the inner wall of the through groove 13, part of each locking bead 4 is located outside the through groove 13, and the part of each locking bead 4, which is located outside the through groove 13, is located at the gap between the outer wall of the first connecting pipe 11 and the inner wall of the unlocking pipe 31, so that the moving range of the second connecting pipe 21 in the horizontal direction cannot be restricted to release the locking of the first connecting pipe 11 on the second connecting pipe 21.
According to the invention, the locking balls 4 are matched with the locking sleeve 3, the second connecting pipe 21 is fixed at the appointed position, the connection of the first pipeline 1 and the second pipeline 2 is rapidly and efficiently completed, meanwhile, the situation that the connection part is loosened due to frequent use of the brake pull rod for a long time is effectively avoided, the connection stability is ensured, meanwhile, the service life of the connecting piece is effectively prolonged, and thus the use efficiency of the brake pull rod using the connecting piece is effectively improved.
Specifically, the inner diameter of the end of the through groove 13 close to the inner wall of the first connecting pipe is smaller than the diameter of the locking bead 4, so as to prevent the locking bead 4 from falling off through the through groove 13 close to the inner wall of the first connecting pipe 11 when the first connecting pipe 11 is not locked with the second connecting pipe 21; a slope is provided at a position where the radius of the through groove 13 changes to prevent the locking bead 4 from being damaged.
According to the invention, by reducing the diameter of the end part of the through groove 13, the situation that the locking bead 4 falls off from the inner wall of the first connecting pipe 11 when the first connecting pipe 11 does not lock the second connecting pipe 21, so that the second connecting pipe 21 cannot be locked by the subsequent first connecting pipe 11 can be effectively prevented, the service life of the connecting piece is further prolonged, and the use efficiency of the brake pull rod using the connecting piece is further improved.
Specifically, the diameter of the locking bead 4 is greater than the wall thickness of the first connection pipe 11, so as to prevent the first connection pipe 11 from being locked by the second connection pipe 21 due to the locking sleeve 3 being unable to apply pressure to the locking bead 4 when the first connection pipe 11 is pulled and the locking bead 4 is pressed into the through groove 13 by the slope of the groove 22 when the first connection pipe 11 is locked by the second connection pipe 21.
According to the invention, the diameter of the locking bead 4 is set to be larger than the wall thickness of the first connecting pipe 11, so that when the first connecting pipe 11 locks the second connecting pipe 21, the situation that the first connecting pipe 11 cannot lock the second connecting pipe 21 due to the fact that the locking bead 4 is extruded to the inside of the through groove 13 by pulling the first connecting pipe 11 to enable the slope at the groove 22 and the locking sleeve 3 cannot apply pressure to the locking bead 4 can be effectively prevented, the stability of the first connecting pipe 11 when the second connecting pipe 21 is locked can be effectively improved, and the use efficiency of the brake pull rod using the connecting piece is further improved.
As shown in fig. 1, a sealing tube 5 is further disposed inside the first connecting tube 11, the sealing tube 5 can move axially inside the first connecting tube 11, the diameter of the outer wall of the sealing tube 5 is the same as the inner wall of the first connecting tube 11, a sealing ring is disposed on the outer wall of the sealing tube 5 for sealing the gap between the first connecting tube 11 and the sealing tube 5, and a sealing ring is disposed at an end of the sealing tube 5 close to the second connecting tube 21 for sealing the gap between the second connecting tube 21 and the sealing tube 5 when the first connecting tube 11 locks the second connecting tube 21.
According to the invention, the sealing tube 5 is used, so that the sealing tube 5 can be connected with the second connecting tube 21, the space in the second connecting tube 21 is effectively sealed, and the use efficiency of the brake pull rod using the connecting piece is further improved.
Specifically, a sealing spring 51 is arranged in the first connecting pipe 11, one end of the sealing spring 51 is connected with one end of the first connecting pipe 11 close to the first pipeline 1, and the other end of the sealing spring 51 is connected with one end of the sealing pipe 5 close to the first pipeline 1; when the first connection pipe 11 locks the second connection pipe 21, the end of the second connection pipe 21 applies pressure to the seal pipe 5 in the axial direction towards the second pipe 2, and the seal spring 51 applies reverse elasticity to the seal pipe 5, so as to improve the sealing property between the seal pipe 5 and the second connection pipe 21 by increasing the pressing force between the second connection pipe 21 and the seal pipe 5.
According to the invention, by arranging the sealing spring 51, when the first connecting pipe 11 locks the second connecting pipe 21, the end part of the second connecting pipe 21 applies pressure to the sealing pipe 5 along the axial direction to the second pipeline 2, the sealing spring 51 applies reverse elasticity to the sealing pipe 5, the sealing performance between the sealing pipe 5 and the second connecting pipe 21 is improved by increasing the extrusion force between the second connecting pipe 21 and the sealing pipe 5, the space in the second connecting pipe 21 can be further sealed, and the use efficiency of the brake pull rod using the connecting piece is further improved.
As shown in fig. 1, an annular groove is formed in an inner wall of the locking sleeve 3 near one end of the first pipeline 1, a return spring 32 is disposed in the annular groove, one end of the return spring 32 is connected to the locking sleeve 3, and the other end is connected to the first pipeline 1; when the locking beads 4 are released from the restraint, a force is applied to the locking sleeve 3 in the direction of the first pipe 1 to move the locking sleeve 3 to the corresponding position, and when the connection or removal of the second connection pipe 21 is completed, the force applied to the locking sleeve 3 is stopped, and the return spring 32 applies a reverse elastic force to the locking sleeve 3 to move the locking sleeve 3 to the initial position so that the locking sleeve 3 restrains each of the locking beads 4.
According to the invention, through the return spring 32, the moved locking sleeve 3 can be quickly reset and the fixed bead can be locked, and meanwhile, when the connecting piece is used, the situation that the second connecting pipe 21 cannot be locked due to the fact that the locking sleeve 3 moves under the influence of external factors can be effectively avoided, and the use efficiency of the brake pull rod using the connecting piece is further improved while the stability of the first connecting pipe 11 when the second connecting pipe 21 is locked is further improved.
As shown in fig. 1, a positioning groove 121 is formed at one end of the limiting tube 12 close to the second pipeline 2, a positioning protrusion 211 is formed at one end of the second connecting tube 21 close to the second pipeline 2, and when the first pipeline 1 and the second pipeline 2 are connected, the positioning protrusion 211 is inserted into the corresponding positioning groove 121 to complete the positioning of the first pipeline 1.
According to the invention, the positioning groove 121 and the positioning protrusion 211 which are matched with each other are used, so that the first connecting pipe 11 and the second connecting pipe 21 cannot rotate relatively due to external factors when the first connecting pipe 11 and the second connecting pipe 21 are connected, and the use efficiency of the brake pull rod using the connecting piece is further improved while the stability of the first connecting pipe 11 locking the second connecting pipe 21 is further improved.
As shown in fig. 1, the inner walls of the first pipeline 1 and the second pipeline 2 are respectively provided with a plurality of annular threads, so as to increase the sealing performance between the first pipeline 1 and the connecting rod and the sealing performance between the second pipeline 2 and the connecting rod when the first pipeline 1 is connected to the connecting rod.
According to the invention, by arranging the annular threads, when the rod piece is connected with the first pipeline 1 or the second pipeline 2, the rod piece can be stably connected with the first pipeline 1 or the second pipeline 2, the sealing property between the rod piece and the first pipeline 1 or the second pipeline 2 is ensured, the stability when the first connecting pipe 11 locks the second connecting pipe 21 is further improved, and the use efficiency of the brake pull rod using the connecting piece is further improved.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high pressure auto-lock brake pull rod quick connect piece which characterized in that includes:
the end part of the first pipeline is provided with a first connecting pipe, the end part of the first connecting pipe is provided with a limiting pipe, the outer diameter of the limiting pipe is larger than that of the first connecting pipe, and a slope is arranged at the connecting part of the outer wall of the limiting pipe and the outer wall of the first connecting pipe; a plurality of through grooves are uniformly formed in the first connecting pipe close to the side wall of the limiting pipe, and slopes are arranged at the connecting positions of the two sides of the groove and the first connecting pipe;
a second connecting pipe is arranged at the end part of the second pipeline, the outer diameter of the second connecting pipe is the same as the inner diameter of the first connecting pipe, and an annular groove is formed in the position, corresponding to the through groove, of the outer wall of the second connecting pipe;
the inner diameter of the locking sleeve sleeved outside the second connecting pipe is the same as the outer diameter of the second connecting pipe, an unlocking pipe is arranged at the end part, close to the first pipeline, of the locking sleeve, the inner diameter of the unlocking pipe is the same as the outer diameter of the limiting pipe, and a slope is arranged at the joint of the inner wall of the unlocking pipe and the inner wall of the locking sleeve;
the locking balls are respectively positioned in the corresponding through grooves and used for locking the second connecting pipe in the first connecting pipe when the first connecting pipe is connected with the second connecting pipe; when the first connecting pipe and the second connecting pipe are connected, the unlocking pipe is sleeved on the outer wall of the limiting pipe, the locking sleeve is sleeved on the outer wall of the first connecting pipe to constrain the moving range of each locking bead, part of each locking bead is positioned outside the through groove and inside the groove, the second connecting pipe is locked at a specified position by constraining the moving range of the second connecting pipe in the horizontal direction, when the first connecting pipe is pulled, the slope of the side wall of the groove applies pressure outside the inclined pipeline to the locking bead, at the moment, the inner wall of the locking sleeve applies pressure in the direction of the inside of the pipeline to each locking bead to constrain each locking bead, and all the locking beads cannot move into the through groove; when the first connecting pipe is unlocked to the second connecting pipe, the locking sleeve is moved towards the first pipeline until the unlocking sleeve is sleeved on the outer wall of the through groove, when the first connecting pipe is pulled, the slope of the side wall of the groove exerts pressure on the locking beads in an inclined pipeline outer side, at the moment, the inner wall of the unlocking sleeve does not exert pressure on the locking beads in the pipeline inner direction, when the second connecting pipe is moved, the outer wall of the groove of the second connecting pipe, which is far away from the second pipeline, is positioned at the inner wall of the through groove, each locking bead is partially positioned outside the through groove, the part of each locking bead, which is positioned outside the through groove, is positioned at the gap between the outer wall of the first connecting pipe and the inner wall of the unlocking pipe, and the moving range of the second connecting pipe in the horizontal direction cannot be restricted so as to unlock the second connecting pipe by the first connecting pipe.
2. The high-pressure self-locking brake pull rod quick connector as claimed in claim 1, wherein the inner diameter of the end of the through groove near the inner wall of the first connecting pipe is smaller than the diameter of the locking bead, so as to prevent the locking bead from falling off through the through groove near the inner wall of the first connecting pipe when the first connecting pipe is not locked with the second connecting pipe; a slope is arranged at the position where the radius of the through groove changes, so that the locking bead is prevented from being damaged.
3. The high-pressure self-locking brake pull rod quick connector according to claim 1, wherein the diameter of the locking bead is larger than the wall thickness of the first connecting pipe, so as to prevent the situation that when the first connecting pipe is pulled to lock the second connecting pipe, the slope of the groove extrudes the locking bead to the inside of the through groove, and the locking sleeve cannot apply pressure to the locking bead, so that the first connecting pipe cannot lock the second connecting pipe.
4. The high-pressure self-locking brake pull rod quick connector according to claim 1, wherein a sealing tube is further arranged inside the first connecting tube, the sealing tube can move axially inside the first connecting tube, the diameter of the outer wall of the sealing tube is the same as that of the inner wall of the first connecting tube, a sealing ring is arranged on the outer wall of the sealing tube and used for sealing a gap between the first connecting tube and the sealing tube, and a sealing ring is arranged at one end of the sealing tube, which is close to the second connecting tube, and used for sealing the gap between the second connecting tube and the sealing tube when the first connecting tube locks the second connecting tube.
5. The high-pressure self-locking brake pull rod quick connecting piece according to claim 4, wherein a sealing spring is arranged in the first connecting pipe, one end of the sealing spring is connected with one end of the first connecting pipe, which is close to the first pipeline, and the other end of the sealing spring is connected with one end of the sealing pipe, which is close to the first pipeline; when first connecting pipe locking second connecting pipe, second connecting pipe tip is right the sealing tube is applyed along the axial to the pressure of second pipeline, and sealing spring applys reverse elasticity to the sealing tube, through increasing the extrusion force between second connecting pipe and the sealing tube in order to improve the leakproofness between sealing tube and the second connecting pipe.
6. The high-pressure self-locking brake pull rod quick connecting piece according to claim 1, wherein an annular groove is formed in the inner wall of the locking sleeve, which is close to one end of the first pipeline, a return spring is arranged in the annular groove, one end of the return spring is connected with the locking sleeve in a radial direction, and the other end of the return spring is connected with the first pipeline; when the restraint on the locking balls is released, force along the direction of the first pipeline is applied to the locking sleeve to move the locking sleeve to the corresponding position, when the connection or the removal of the second connecting pipe is completed, the force applied to the locking sleeve is stopped, and the reset spring applies reverse elastic force to the locking sleeve and moves the locking sleeve to the initial position so that the locking sleeve restrains each locking ball.
7. The high-pressure self-locking brake pull rod quick connecting piece according to claim 1, wherein a positioning groove is formed in one end, close to the second pipeline, of the limiting pipe, a positioning protrusion is arranged at one end, close to the second pipeline, of the second connecting pipe, and when the first pipeline and the second pipeline are connected, the positioning protrusion is inserted into the corresponding positioning groove to complete positioning of the first pipeline.
8. The high-pressure self-locking brake pull rod quick connector according to claim 1, wherein the inner wall of the first pipeline and the inner wall of the second pipeline are provided with a plurality of annular threads for increasing the sealing performance between the first pipeline and the connecting rod and the sealing performance between the first pipeline and the connecting rod when the first pipeline and the second pipeline are connected with the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783433.9A CN113606227A (en) | 2021-07-12 | 2021-07-12 | High-pressure self-locking brake pull rod quick connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783433.9A CN113606227A (en) | 2021-07-12 | 2021-07-12 | High-pressure self-locking brake pull rod quick connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113606227A true CN113606227A (en) | 2021-11-05 |
Family
ID=78337445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110783433.9A Pending CN113606227A (en) | 2021-07-12 | 2021-07-12 | High-pressure self-locking brake pull rod quick connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113606227A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2366475A1 (en) * | 1976-10-04 | 1978-04-28 | Salanon Sa | AUTOMATIC SWITCHING QUICK CONNECTOR |
| JPH08270862A (en) * | 1995-03-27 | 1996-10-15 | Kvk Corp | Pipe fitting |
| CN201162905Y (en) * | 2006-08-02 | 2008-12-10 | 杭州大诚塑胶制品有限公司 | Pipe joint |
| KR20110004978U (en) * | 2009-11-12 | 2011-05-18 | 킴스엔지니어링 주식회사 | A hybrid quick coupler |
| JP2012031956A (en) * | 2010-07-30 | 2012-02-16 | Daito Sangyo Kk | Pipe coupling |
| CN102767658A (en) * | 2012-08-07 | 2012-11-07 | 慈溪市千义液压件有限公司 | Quick connector |
| CN202674644U (en) * | 2012-08-07 | 2013-01-16 | 慈溪市千义液压件有限公司 | Quick coupling |
| CN203671101U (en) * | 2014-01-16 | 2014-06-25 | 史陶比尔（杭州）精密机械电子有限公司 | Releasable pipeline connector base and plug |
| CN106931260A (en) * | 2017-03-31 | 2017-07-07 | 福建上润精密仪器有限公司 | A kind of pressure piping snap joint |
| CN209146573U (en) * | 2018-11-14 | 2019-07-23 | 珠海格力电器股份有限公司 | Pipe joint arrangement and air conditioner |
| CN209398999U (en) * | 2018-12-26 | 2019-09-17 | 绵阳亿丰达智能装备有限公司 | A kind of self-locking Water pipe fast-connection head of retaining ring |
-
2021
- 2021-07-12 CN CN202110783433.9A patent/CN113606227A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2366475A1 (en) * | 1976-10-04 | 1978-04-28 | Salanon Sa | AUTOMATIC SWITCHING QUICK CONNECTOR |
| JPH08270862A (en) * | 1995-03-27 | 1996-10-15 | Kvk Corp | Pipe fitting |
| CN201162905Y (en) * | 2006-08-02 | 2008-12-10 | 杭州大诚塑胶制品有限公司 | Pipe joint |
| KR20110004978U (en) * | 2009-11-12 | 2011-05-18 | 킴스엔지니어링 주식회사 | A hybrid quick coupler |
| JP2012031956A (en) * | 2010-07-30 | 2012-02-16 | Daito Sangyo Kk | Pipe coupling |
| CN102767658A (en) * | 2012-08-07 | 2012-11-07 | 慈溪市千义液压件有限公司 | Quick connector |
| CN202674644U (en) * | 2012-08-07 | 2013-01-16 | 慈溪市千义液压件有限公司 | Quick coupling |
| CN203671101U (en) * | 2014-01-16 | 2014-06-25 | 史陶比尔（杭州）精密机械电子有限公司 | Releasable pipeline connector base and plug |
| CN106931260A (en) * | 2017-03-31 | 2017-07-07 | 福建上润精密仪器有限公司 | A kind of pressure piping snap joint |
| CN209146573U (en) * | 2018-11-14 | 2019-07-23 | 珠海格力电器股份有限公司 | Pipe joint arrangement and air conditioner |
| CN209398999U (en) * | 2018-12-26 | 2019-09-17 | 绵阳亿丰达智能装备有限公司 | A kind of self-locking Water pipe fast-connection head of retaining ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2224155B1 (en) | Connection structure of tubular connection member and joint member | |
| US20120074695A1 (en) | Pipe connector | |
| CA2797176C (en) | One-touch pipe connection device | |
| CN105470722B (en) | A kind of electric coupler component | |
| CN113606227A (en) | High-pressure self-locking brake pull rod quick connecting piece | |
| JP5334792B2 (en) | Pipe fitting | |
| CN103775774B (en) | Directly-pushing connecting pipe joint | |
| CN110676779B (en) | Wall bushing | |
| KR101613656B1 (en) | Slip prevention type coupling device, segment for tunnel and tunnel by the same | |
| CN106764150B (en) | Snap ring locking type pipeline connecting assemble | |
| CN215522389U (en) | Quick interfacing apparatus of compound steel pipe | |
| CN209278687U (en) | A kind of high intensity snap ring-type locking waterproof hose connector | |
| CN212784705U (en) | PVC electric power pipe with connecting and fastening structure | |
| CN112096993A (en) | Quick connector | |
| WO2016127732A1 (en) | Cluster fast-plug self-lock radio frequency connector component | |
| CN114382970A (en) | Metal hose joint structure | |
| CN210006662U (en) | high-voltage load switch | |
| CN208982830U (en) | A kind of high voltage bearing hydraulic joint | |
| CN112576833A (en) | Novel combined structure's quick connector | |
| CN219204073U (en) | Quick-connect cable intermediate joint | |
| CN211550845U (en) | Integrated quick connecting joint for composite pipe | |
| CN105329054A (en) | Traction pin | |
| CN111878652A (en) | Corrugated pipe quick connector | |
| CN219120032U (en) | Anti-drop locking device | |
| CN219994254U (en) | Pressure maintaining valve with quick plug and one-way seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |