阅读说明：本技术 一种防水圆孔套组及防水转辙机 (Waterproof round hole sleeve set and waterproof switch machine ) 是由 边衡 赵建平 受志刚 施俊明 赵健 赵勇 张金有 张晓栋 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种防水圆孔套组,其包括圆孔套和与其固定连接的防尘套,圆孔套和防尘套上均设有同轴的供圆柱杆件穿过的通孔,且两者连接面的内侧设有组合密封圈,组合密封圈内径与圆柱杆件内径相等。圆孔套的通孔内壁上设有耐磨支撑环,防尘套的通孔内壁上设有防尘密封圈和环形储油槽,且防尘套上还设有与环形储油槽相通的注油孔,注油孔处安装有注油油杯。圆孔套的端面上设有O型圈。还公开了包括该圆孔套组的防水转辙机。本发明防水圆孔套组具有良好的防水、防尘、耐摩擦功能,且具有利于安装、便于维修,成本低的优点。转辙机通过应用该防水圆孔套组安装动作杆和锁闭表示杆,能真正达到具备高度防水、防尘、减少磨损、增加润滑的防水型转辙机。(The invention discloses a waterproof round hole sleeve set which comprises a round hole sleeve and a dustproof sleeve fixedly connected with the round hole sleeve, wherein the round hole sleeve and the dustproof sleeve are respectively provided with a coaxial through hole for a cylindrical rod piece to pass through, the inner sides of the connecting surfaces of the round hole sleeve and the dustproof sleeve are provided with a combined sealing ring, and the inner diameter of the combined sealing ring is equal to that of the cylindrical rod piece. The inner wall of the through hole of the round hole sleeve is provided with a wear-resistant support ring, the inner wall of the through hole of the dustproof sleeve is provided with a dustproof sealing ring and an annular oil storage tank, the dustproof sleeve is also provided with an oil filling hole communicated with the annular oil storage tank, and the oil filling hole is provided with an oil filling cup. And an O-shaped ring is arranged on the end surface of the circular hole sleeve. A waterproof switch machine comprising the round hole sleeve is also disclosed. The waterproof round hole sleeve set has the advantages of good waterproof, dustproof and friction-resistant functions, convenience in installation and maintenance and low cost. The switch machine can really achieve the waterproof switch machine with high waterproof performance, dust prevention performance, abrasion reduction performance and lubrication increase performance by installing the action rod and the locking indication rod through the waterproof round hole sleeve.)

1. The utility model provides a waterproof round hole suit, its characterized in that, includes round hole cover and rather than fixed connection's dirt proof boot, all be equipped with the coaxial through-hole that supplies the cylinder member to pass on round hole cover and the dirt proof boot, just the inboard of round hole cover and dirt proof boot connection face is equipped with the combination sealing washer, the internal diameter of combination sealing washer with pass the member diameter of through-hole equals.

2. The waterproof round hole sleeve set as claimed in claim 1, wherein a first groove is formed on the inner wall of the through hole of the round hole sleeve, a wear-resistant support ring is arranged at the first groove, and the inner diameter of the wear-resistant support ring is equal to the diameter of the rod passing through the through hole.

3. The waterproof round hole sleeve set as claimed in claim 2, wherein a second groove is formed on the inner wall of the through hole of the dustproof sleeve, a dustproof sealing ring is arranged at the second groove, and the inner diameter of the dustproof sealing ring is equal to the diameter of the rod passing through the through hole.

4. The waterproof round hole set according to claim 3, wherein the dustproof sealing ring is a C-shaped dustproof sealing ring.

5. The waterproof round hole sleeve set according to claim 3, wherein an annular oil storage groove is formed in the inner wall of the through hole of the dustproof sleeve, an oil filling hole communicated with the annular oil storage groove is further formed in the dustproof sleeve, an oil filling cup is installed at the oil filling hole, and the annular oil storage groove is formed in one side, close to the round hole sleeve, of the second groove.

6. The waterproof round hole set as claimed in claim 1, wherein the combined sealing ring is an integrated structure of an outer O-ring and an inner rectangular ring.

7. The waterproof round hole sleeve set as claimed in any one of claims 1 to 6, wherein a third groove is formed on an end surface of the round hole sleeve for connecting with the housing, and an O-ring is arranged at the third groove.

8. The waterproof round hole set of claim 7, wherein the round hole set comprises a single through hole structure and a double through hole structure.

9. A waterproof switch machine, comprising a housing, an action rod and a locking indication rod which do telescopic motion relative to the housing, wherein the action rod and the rod of the locking indication rod are sleeved in the through hole of the waterproof round hole set according to any one of claims 1 to 8, and the round hole set of the waterproof round hole set is fixedly connected with the housing.

10. The waterproof switch machine as claimed in claim 9, wherein the circular hole set comprises a single through hole structure and a double through hole structure, and the rod of the action rod is sleeved in the circular hole set of the single through hole structure; the locking shows that main and auxiliary rod pieces of pole are respectively nested in the round hole suit of two-hole structure.

Technical Field

The invention relates to the technical field of switch machines for railway turnouts, in particular to a waterproof round hole sleeve set and a waterproof switch machine.

Background

The action rod and the locking indicating rod of the existing switch machine are mostly connected with a switch machine shell by adopting a round hole sleeve or a square hole sleeve, one mode of sealing between the rod piece and the hole sleeve is realized by adopting a felt, but the felt is poor in dustproof and waterproof performance and lubricating performance, and cannot meet the waterproof requirement of the switch machine. The other mode is realized by adopting a circular hole sleeve with a wear-resisting ring and a dust ring, such as a novel real-purpose patent with the application number of 201420816289.X, and the name is the circular hole sleeve for the switch machine and the switch machine applying the circular hole sleeve, wherein although the lubricating and dustproof performances of the wear-resisting ring and the dust ring are slightly improved, the waterproof performance is still poor, and the requirement of the existing waterproof switch machine cannot be met.

Therefore, the existing switch machine has the defect of poor waterproof performance in practical use, and needs to be further improved. How to create a new waterproof round hole sleeve set and a waterproof switch machine to enable the waterproof round hole sleeve set and the waterproof switch machine to achieve the real hydraulic level waterproof performance, provide reliable guarantee for the waterproof switch machine and become the target of great need for improvement in the industry at present.

Disclosure of Invention

The invention aims to provide a waterproof round hole sleeve set which can achieve the real hydraulic-level waterproof performance, thereby overcoming the defects of the existing round hole sleeve for a point switch.

In order to solve the technical problem, the invention provides a waterproof round hole sleeve set which comprises a round hole sleeve and a dustproof sleeve fixedly connected with the round hole sleeve, wherein through holes for cylindrical rod pieces to pass through are coaxially formed in the round hole sleeve and the dustproof sleeve, a combined sealing ring is arranged on the inner side of the connecting surface of the round hole sleeve and the dustproof sleeve, and the inner diameter of the combined sealing ring is equal to the diameter of the rod piece passing through the through holes.

The improved structure is characterized in that a first groove is formed in the inner wall of the through hole of the circular hole sleeve, a wear-resistant support ring is arranged at the first groove, and the inner diameter of the wear-resistant support ring is equal to the diameter of a rod piece penetrating through the through hole.

The dustproof sleeve is characterized in that a second groove is formed in the inner wall of the through hole of the dustproof sleeve, a dustproof sealing ring is arranged at the position of the second groove, and the inner diameter of the dustproof sealing ring is equal to the diameter of a rod piece penetrating through the through hole.

Further improve, dustproof sealing ring adopts C type dustproof sealing ring.

Further improve, annular oil storage tank has been seted up on the through-hole inner wall of dirt proof boot, just the dirt proof boot still be equipped with the communicating oil filler point of annular oil storage tank, oil filler point department installs the oiling oil cup, annular oil storage tank sets up the second recess is close to one side of round hole cover.

The combined sealing ring is further improved, and the combined sealing ring is of an integrated structure of an outer side O-shaped ring and an inner side rectangular ring.

The improved structure is characterized in that a third groove is formed in the end face, used for being connected with the shell, of the circular hole sleeve, and an O-shaped ring is arranged at the third groove.

Further improve, the round hole suit includes single through-hole structure and bi-pass hole structure.

The invention also provides a waterproof switch machine which comprises a shell, an action rod and a locking indicating rod, wherein the action rod and the locking indicating rod do telescopic motion relative to the shell, rod pieces of the action rod and the locking indicating rod are sleeved in the through holes of the waterproof round hole sleeve set, and the round hole sleeve of the waterproof round hole sleeve set is fixedly connected with the shell.

The rod piece of the action rod is sleeved in the round hole sleeve with the single through hole structure; the locking shows that main and auxiliary rod pieces of pole are respectively nested in the round hole suit of two-hole structure.

After adopting such design, the invention has at least the following advantages:

1. according to the circular hole sleeve set, the existing circular hole sleeve is improved, the circular hole sleeve is divided into the combined external member, and the combined sealing ring is added, so that the practical operation is facilitated, the waterproof sealing between the circular hole sleeve and the cylindrical rod piece and the waterproof sealing between the circular hole sleeve and the dustproof sleeve can be well realized, and the hydraulic-level waterproof function can be achieved.

2. Still through wear-resisting support ring and the dust seal circle of setting on circle borehole jack and dust cover inner wall to and the O type circle on the circle borehole jack terminal surface, can really realize this round borehole jack group's waterproof, dustproof, antifriction's technological effect. Still through set up annular oil storage tank and oiling oil cup on the dirt proof boot, further play the effect that reduces wear, increase lubrication. And this waterproof round hole suit still has the advantage that does benefit to the installation, is convenient for maintain, and is with low costs.

3. The switch machine can prevent water from entering gaps between the rod piece of the action rod and the locking indication rod and between the round hole sleeve and the gap between the round hole sleeve and the switch machine shell by using the waterproof round hole sleeve, has the functions of high water resistance, high dust resistance, abrasion reduction and lubrication increase, provides reliable guarantee for the waterproof switch machine, and is convenient to install and maintain and low in cost.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.

Fig. 1 is a radial sectional structural view of a waterproof round hole set of the present invention.

Fig. 2 is a schematic structural view of the action rod of the waterproof switch machine of the present invention passing through the circular hole set of the single through hole structure.

Fig. 3 is a schematic view of the construction of the locking circular hole set showing the rod passing through the double through hole structure in the waterproof switch machine of the present invention.

Detailed Description

Referring to fig. 1, the waterproof circular hole sleeve set of the present embodiment includes a circular hole sleeve 1 and a dust-proof sleeve 2 fixedly connected to the circular hole sleeve 1, through holes 10 are provided on the circular hole sleeve 1 and the dust-proof sleeve 2 for the cylindrical rod to pass through coaxially, a combined sealing ring 3 is provided on the inner side of the connection surface of the circular hole sleeve 1 and the dust-proof sleeve 2, and the inner diameter of the combined sealing ring 3 is equal to the diameter of the rod passing through the through holes 10.

In this embodiment, the combined sealing ring 3 is an integrated structure of an outer side O-ring and an inner side rectangular ring. This combination sealing washer 3 can prevent the water intaking between round hole cover 1 and the cylinder member, and the gap between round hole cover 1 that can prevent again is intake, and good realization round hole cover and the waterproof sealing of cylinder member to and the waterproof sealing between round hole cover and the dirt proof boot. According to the invention, the round hole sleeve is improved into the combined sleeve, and the purpose is to increase the combined sealing ring, so that the actual production and processing are facilitated, the installation and maintenance are facilitated, and the hydraulic-grade waterproof function is really achieved.

In this embodiment, a first groove is formed in the inner wall of the through hole of the circular hole sleeve 1, a wear-resistant support ring 4 is arranged at the first groove, and the inner diameter of the wear-resistant support ring 4 is equal to the diameter of a rod piece penetrating through the through hole, so that the functions of wear resistance, support and guiding and positioning are achieved.

A second groove is formed in the inner wall of the through hole of the dustproof sleeve 2, a dustproof sealing ring 5 is arranged at the second groove, and the inner diameter of the dustproof sealing ring 5 is equal to the diameter of a rod piece penetrating through the through hole.

This dust seal 5 adopts C type dust seal in this embodiment, and dustproof ability further promotes to have certain waterproof ability, guarantee simultaneously that the grease persists inside round hole suit, further increase lubricated persistence.

An annular oil storage tank 6 is further arranged on the inner wall of the through hole of the dustproof sleeve 2, an oil filling hole 7 communicated with the annular oil storage tank 6 is further arranged on the dustproof sleeve 2, and an oil filling cup is mounted at the oil filling hole 7. This annular oil storage tank 6 sets up in one side that this second recess is close to this round hole cover 1, and lubricating oil pours into the back into from oil filler point 7 promptly, gets into annular oil storage tank 6, and the outside is blockked by dust seal 5, provides the lubrication for the flexible of member.

Still in order to prevent this round hole cover group and rather than the intake between the fixed casing, seted up the third recess on the outer terminal surface of this round hole cover 1, this third groove department is equipped with O type circle 8, further improves water-proof effects.

In this embodiment, the waterproof round hole set is used in a switch machine for a railway turnout, and the waterproof, dustproof and friction-resistant functions of the switch machine can be realized. The specific embodiment is as follows:

the waterproof switch machine of the embodiment comprises a shell, an action rod 11 and a locking indication rod 12, wherein the action rod 11 and the locking indication rod 12 do telescopic motion relative to the shell, rod pieces of the action rod 11 and the locking indication rod 12 are sleeved in a through hole 10 of the waterproof round hole sleeve set, and the round hole sleeve 1 of the waterproof round hole sleeve set is fixedly connected with the switch machine shell.

Further improved, the circular hole sleeve group can be of a single through hole structure and a double through hole structure. As shown in figures 2 and 3. When the round hole sleeve set is used for installing the action rod 11 of the switch machine, the waterproof round hole sleeve set with a single-through hole structure is adopted. When the circular hole sleeve set is used for installing and locking the main rod piece and the auxiliary rod piece of the indication rod 12, a waterproof circular hole sleeve set with a double-through-hole structure is adopted.

The switch machine using the waterproof round hole sleeve set can really realize a waterproof function, is simple and convenient to install, flexible to apply, excellent in waterproof, dustproof and friction-resistant performances and low in cost, and solves the problems that an existing round hole sleeve is low in dustproof and wear-resistant performances and poor in waterproof performance.

Certainly, this waterproof round hole cover group can also be used to on other needs good waterproof function's the flexible member, and the usage is wide, the simple installation, change sealing washer are simple and convenient swift, do benefit to the maintenance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.