CN114876952A - Slide rail mechanism with locking device - Google Patents
Slide rail mechanism with locking device Download PDFInfo
- Publication number
- CN114876952A CN114876952A CN202210629827.3A CN202210629827A CN114876952A CN 114876952 A CN114876952 A CN 114876952A CN 202210629827 A CN202210629827 A CN 202210629827A CN 114876952 A CN114876952 A CN 114876952A
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- China
- Prior art keywords
- slide rail
- locking
- sliding
- sliding rail
- rail
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 238000013016 damping Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012800 visualization 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/10—Arrangements for locking the bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a slide rail mechanism with a locking device, wherein the inner part of an outer slide rail is provided with a cavity, an inner slide rail is arranged in the cavity of the outer slide rail in a sliding way, a slide block is arranged in the inner slide rail and forms relative sliding with the outer slide rail through the inner slide rail, the upper ends of two sides of the outer slide rail are provided with fixed blocks, a rotating shaft is arranged on the fixed blocks, locking units are arranged in grooves of the outer slide rail, an upper wedge block of each locking unit is wrapped through the fixed blocks, the upper wedge block of each locking unit is connected with a gear shaft, the gear shaft is connected with the rotating shaft through a gear rotating mechanism, the locking unit has a sliding state and a locking state, the outer slide rail and the inner slide rail can slide in the sliding state, and when the sliding rail is in a locking state, the outer sliding rail and the inner sliding rail are locked, and the rotating shaft enables the sliding rail to be in a sliding state or a locking state through the gear rotating mechanism and the locking unit. The invention has simple structure and no complex electric locking mechanism, and reduces functional components such as damping, spring and the like.
Description
Technical Field
The invention relates to the technical field of sliding rail structures, in particular to a sliding rail mechanism with a locking device.
Background
In spacecraft there are different component units, which are installed in different locations. These components are attached to fixed supports such as cabinet and cabinet ends during normal operation of the equipment. When the equipment is failed and reaches the service life, the astronauts need to carry out maintenance and replacement operations, and unreasonable operation space often has bad influence on maintenance. Therefore, a connecting mechanism needs to be added to realize the space conversion between the normal working condition and the maintenance working condition.
The slide rail is a linear motion device for realizing rapid visualization of the internal space, has simple structure and convenient operation, and is widely applied to daily life and industrial production. The main defects of the existing slide rail are as follows: the slide rail can not keep the locking state when pushing back, has very big potential safety hazard when equipment high-speed operation. In recent years, a plurality of sliding rail structures with self-locking functions for household articles such as drawers and cabinets appear on the market, but most of the sliding rail structures are complex in structure and complex in assembly, passive self-locking is realized by means of mechanisms, active locking cannot be achieved, reliability is not high, and the sliding rail structures are not suitable for aerospace equipment for maintenance requirements.
Application number is 201820617406.8's utility model patent discloses an adjustable slide rail locking mechanism in distribution automation monitor terminal, including moving the slider and deciding the slide rail, move the inside division of slider and have the capable groove of T, and be equipped with electric putter and spacing kelly, decide to be equipped with the joint groove on the slide rail. The principle is that the electric pushing rod pushes the limiting clamping rod through the inclined plane, the limiting clamping rod is clamped into the clamping groove, the movable sliding block and the fixed sliding rail are locked, the scheme has the advantages that the mechanical structure is simple and easy to understand, but the defect is that electric control is needed, and the locking position is limited. The invention patent with application number 201911365083.3 discloses a synchronous slide rail integrated with a damping closing and locking mechanism, which comprises an external fixed seat and a slide rail assembly arranged on the external fixed seat, wherein the slide rail assembly comprises an outer rail, a middle rail and an inner rail, when the slide rail approaches a terminal point, the slide rail continues to move slowly under the combined action of a tension spring and a damper until the slide rail is completely locked, and the slide rail assembly is more and has a complex mechanism.
Disclosure of Invention
The invention aims to provide a sliding rail mechanism with a locking device, which overcomes the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a sliding rail mechanism with a locking device comprises an outer sliding rail, a sliding block, an inner sliding rail, a gear shaft, locking units, fixing blocks and a rotating shaft, wherein a cavity is formed in the outer sliding rail, the inner sliding rail is slidably arranged in the cavity of the outer sliding rail, the sliding block is arranged in the inner sliding rail and forms relative sliding with the outer sliding rail through the inner sliding rail, the fixing blocks are arranged at the upper ends of two sides of the outer sliding rail, the rotating shaft is arranged on the fixing blocks, the locking units are arranged in grooves of the outer sliding rail, an upper wedge block of each locking unit is wrapped through the fixing blocks, the upper wedge block of each locking unit is connected with the gear shaft, the gear shaft is connected with the rotating shaft through a gear rotating mechanism, each locking unit has a sliding state and a locking state, the outer sliding rail and the inner sliding rail can slide in the sliding state, and the outer sliding rail is locked with the inner sliding rail in the locking state, the rotating shaft makes the slide rail in a sliding state or a locking state through the gear rotating mechanism and the locking unit.
Furthermore, the locking unit comprises two locking modules, each locking module comprises an upper wedge block and a lower wedge block, the upper wedge block is arranged in a groove at the end part of the outer slide rail, the fixing block wraps the upper wedge block, an internal thread is arranged on the upper wedge block, one end of the gear shaft is connected with the internal thread on the upper wedge block through an external thread, the lower wedge block is connected with the inner slide rail, and an upper wedge surface of the upper wedge block is matched with a lower wedge surface of the lower wedge block.
Furthermore, the gear rotating mechanism comprises a large gear arranged on the rotating shaft and a small gear arranged on the gear shaft, and the large gear is meshed with the small gear.
Furthermore, the upper ends of the two sides of the outer slide rail are provided with openings, the lower end of the upper wedge block is provided with an integrated protruding portion, the length of the protruding portion is smaller than that of the opening, the lower end face of the protruding portion is a lower wedge face, and the length of the upper wedge block is equal to that of the opening.
Furthermore, the upper end of the outer slide rail is also provided with a sliding groove for the upper wedge block to slide.
Further, the rotating shaft includes a rotating shaft body, and one end of the rotating shaft body is provided with a rotating knob 803.
Further, the bottom of the cavity of the outer slide rail is provided with a plurality of first threaded holes, and the outer slide rail is fixedly connected with an external support through the first threaded holes.
Furthermore, a plurality of second threaded holes are formed in the inner sliding rail, and the inner sliding rail is connected with an external bearing mechanism through the second threaded holes.
Compared with the prior art, the invention has the advantages that: the invention has simple structure, no complex electric locking mechanism, reduces functional components such as damping, springs and the like, is convenient to operate, can realize the locking and the unlocking of the slide rail only by twisting the rotating shaft, realizes the locking in the full stroke, solves the defect that the existing slide rail can only be locked at a limited position, is directed to high-speed running equipment such as aerospace and the like with maintenance requirements, has low use frequency but high reliability, realizes the switching of the normal running and the maintenance state of the equipment through a simple mechanical structure, and ensures that the equipment is completely locked when in normal running.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a plan view showing a slide rail mechanism with a locking device according to the present invention.
Fig. 2 is a plan partial sectional view of the slide rail mechanism with a locking device of the present invention.
Fig. 3 is a schematic partial perspective view of the outer slide rail according to the present invention.
Fig. 4 is a schematic plan view of a rotary shaft according to the present invention.
Fig. 5 is a schematic plan view of the gear shaft of the present invention.
The sliding block structure comprises an outer slide rail 1, a cavity 100, a bolt mounting hole 101, a slide block mounting surface 102, a lower wedge block mounting base surface 103, an upper wedge block sliding surface 104, an opening 105, a sliding groove 106, a slide block 2, an inner slide rail 3, a fixed block 4, a left lower wedge block 5, a left upper wedge block 6, a first gear shaft 7, a rotating shaft 8, a first gear 801, a second gear 802, a rotating knob 803, a second gear shaft 9, a third gear 901, a right-handed thread 902, a right upper wedge block 10, a lower surface 1001 of the right upper wedge block, a right lower wedge block 11, an upper surface 1101 of the right lower wedge block and a lower surface 1002 of the right lower wedge block.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
Referring to fig. 1 to 5, the embodiment discloses a slide rail mechanism with a locking device, which includes an outer slide rail 1, a slider 2, an inner slide rail 3, a gear shaft (i.e. a first gear shaft 7 and a second gear shaft 9), a locking unit, a fixing block 4 and a rotating shaft 8, wherein the outer slide rail 1 has a cavity 100 inside, the inner slide rail 3 is slidably disposed in the cavity of the outer slide rail 1, the slider 2 is disposed in the inner slide rail 3 and forms a relative sliding with the outer slide rail 1 through the inner slide rail 3, the fixing block 4 is mounted on the upper ends of both sides of the outer slide rail 1, the rotating shaft 8 is mounted on the fixing block 4, the locking unit is disposed in a groove of the outer slide rail 1, an upper wedge block of each locking unit is wrapped by the fixing block 4, an upper wedge block of each locking unit is connected with the gear shaft, the gear shaft is connected with the rotating shaft 8 through the gear rotating mechanism, the locking unit has a sliding state and a locking state, the outer sliding rail 1 and the inner sliding rail 3 can slide in a sliding state, the outer sliding rail 1 and the inner sliding rail 3 are locked in a locking state, and the rotating shaft 8 enables the sliding rails to be in a sliding state or a locking state through the gear rotating mechanism and the locking unit.
The locking unit comprises two locking modules, each locking module comprises an upper wedge block and a lower wedge block, the upper wedge block is arranged in a groove at the end part of the outer sliding rail, the fixing block 4 wraps the upper wedge block, an inner thread is arranged on the upper wedge block, one end of a gear shaft (a first gear shaft 7 and a second gear shaft 9) is connected with the inner thread on the upper wedge block through an outer thread (for example, a right-handed thread 902 in fig. 2), the lower wedge block is connected with the inner sliding rail 3, and an upper wedge surface of the upper wedge block is matched with a lower wedge surface of the lower wedge block.
In this embodiment, the upper ends of the two sides of the outer slide rail 1 are both provided with an opening 105, the lower end of the upper wedge block is an integrated protruding portion 10, the length of the protruding portion 10 is smaller than that of the opening 105, the lower end surface of the protruding portion 10 is a lower wedge surface, and the length of the upper wedge block is equal to that of the opening 105.
In this embodiment, the upper end of the outer slide rail 1 is further provided with a sliding slot 106 for the upper wedge to slide, forming an upper wedge sliding surface 104, so as to facilitate the sliding of the upper wedge.
In this embodiment, the rotating shaft 8 includes a rotating shaft body, one end of the rotating shaft body is provided with a rotating knob 803, and the rotating knob 803 is rotated to drive the gear shaft through the gear rotating mechanism to enable the locking unit to be in a sliding state or a locking state.
In this embodiment, the left locking module includes a lower left wedge 5 and an upper left wedge 6, the right locking module includes an upper right wedge 8 and a lower right wedge 9, the internal thread connection of the upper left wedge 6 and the internal thread of the upper right wedge 8 are respectively connected with the left-hand thread of the first gear shaft 7 and the right-hand thread 902 of the second gear shaft 9, as shown in fig. 2, the structure of the right locking module is taken as an example: in use, the lower surface 1001 of the upper right wedge mates with the upper surface 1101 of the lower right wedge, and the lower surface 1102 of the lower right wedge is connected to the inner slide 3.
The locking scheme of one side is as follows: the rotary motion of the rotating shaft 8 is subjected to gear transmission through a second gear 802 on the rotating shaft and a third gear 901 of a second gear shaft 9, power is transmitted to the second gear shaft 9, the rotary motion of the second gear shaft 9 is transmitted to an upper right wedge block 10 through threads, the upper right wedge block 10 is in linear motion, then the linear motion of the upper right wedge block 10 enables the upper right wedge block 10 to compress a lower right wedge block 11, the lower right wedge block 11 and an outer slide rail 1 fixed on a cabin body are locked together with an inner slide rail 3, and therefore the whole system (such as a carbon dioxide removal system) is locked.
The overall locking scheme is as follows: two fixed plates 4 are connected by bolts and fixed on the outer slide rail 1, and the fixed blocks 4 are rotationally connected with the rotating shaft 8. The rotation of the rotation shaft 8 is transmitted by two threads with different rotation directions, so that the upper right wedges 10 on two sides move along different directions, the lower right wedges 11 are compressed, and the force along the movement direction of the slide rail is offset.
The thread of the threaded hole in the upper left wedge 6 is a left-hand thread, and the thread on the first gear shaft 7 is also a left-hand thread. The threads on the second gear shaft 9 are right-hand threads, and the threads of the threaded hole in the upper right wedge 10 are right-hand threads.
In this embodiment, the bottom of the cavity 100 of the outer slide rail 1 is provided with a plurality of first threaded holes, and the outer slide rail 1 is fixedly connected with an external bracket through the first threaded holes.
In this embodiment, a plurality of second threaded holes are formed in the inner slide rail 3, and the inner slide rail 3 is connected to an external bearing mechanism (e.g., a cabin) through the second threaded holes.
When the invention is used, the astronaut rotates the rotating shaft 8, and the rotating shaft is driven to be meshed with the big gear and the small gear on the gear shaft through the rotation of the rotating shaft 8, thereby transmitting the power to the gear shaft. The upper wedge block is driven by the thread transmission of the gear shaft to do linear motion, so that the upper wedge block extrudes the lower wedge block, the lower wedge block compresses the inner slide rail again, and the slide rail is locked. The locking and sliding of the inner slide rail and the outer slide rail are controlled through the rotation of the rotating shaft, and the switching between the sliding state and the locking state is realized. The slide rail realizes active locking, overcomes the defect of locking at a limited position within a stroke range, has a simple structure, and can bear larger load.
The invention has simple structure, no complex electric locking mechanism, reduces functional components such as damping, springs and the like, is convenient to operate, can realize the locking and the unlocking of the slide rail only by twisting the rotating shaft, realizes the locking in the full stroke, solves the defect that the existing slide rail can only be locked at a limited position, is directed to high-speed running equipment such as aerospace and the like with maintenance requirements, has low use frequency but high reliability, realizes the switching of the normal running and the maintenance state of the equipment through a simple mechanical structure, and ensures that the equipment is completely locked when in normal running. The invention reduces the torque required by the operation of astronauts through gear transmission, and improves the reasonability of the layout of the rotating shaft.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes or modifications may be made by the patentees within the scope of the appended claims, and within the scope of the invention, as long as they do not exceed the scope of the invention described in the claims.
Claims (8)
1. A sliding rail mechanism with a locking device is characterized by comprising an outer sliding rail, a sliding block, an inner sliding rail, a gear shaft, locking units, fixed blocks and a rotating shaft, wherein a cavity is formed in the outer sliding rail, the inner sliding rail is slidably arranged in the cavity of the outer sliding rail, the sliding block is arranged in the inner sliding rail and forms relative sliding with the outer sliding rail through the inner sliding rail, the fixed blocks are arranged at the upper ends of two sides of the outer sliding rail, the rotating shaft is arranged on the fixed blocks, the locking units are arranged in grooves of the outer sliding rail, an upper wedge block of each locking unit is wrapped through the fixed blocks, the upper wedge block of each locking unit is connected with the gear shaft, the gear shaft is connected with the rotating shaft through a gear rotating mechanism, each locking unit has a sliding state and a locking state, and the outer sliding rail and the inner sliding rail can slide in the sliding state, and when the sliding rail is in a locking state, the outer sliding rail and the inner sliding rail are locked, and the rotating shaft enables the sliding rail to be in a sliding state or a locking state through the gear rotating mechanism and the locking unit.
2. The slide rail mechanism with the locking device according to claim 1, wherein the locking unit comprises two locking modules, each locking module comprises an upper wedge and a lower wedge, the upper wedge is disposed in the groove of the end portion of the outer slide rail, the fixing block wraps the upper wedge, the upper wedge is provided with internal threads, one end of the gear shaft is connected with the internal threads on the upper wedge through external threads, the lower wedge is attached to the inner slide rail, and the upper wedge surface of the upper wedge is matched with the lower wedge surface of the lower wedge.
3. The slide rail mechanism with locking device as claimed in claim 1, wherein said gear rotating mechanism comprises a large gear provided on said rotating shaft and a small gear provided on said gear shaft, said large gear being engaged with said small gear.
4. The slide rail mechanism with the locking device according to claim 2, wherein the outer slide rail is provided with openings at the upper ends of both sides, the lower end of the upper wedge block is an integral protrusion, the length of the protrusion is smaller than that of the opening, the lower end surface of the protrusion is a lower wedge surface, and the length of the upper wedge block is equal to that of the opening.
5. The slide rail mechanism with the locking device according to claim 1, wherein the upper end of the outer slide rail is further provided with a sliding groove for the upper wedge to slide.
6. The slide rail mechanism with locking device according to claim 1, wherein the rotation shaft comprises a rotation shaft body, and a rotation knob is provided at one end of the rotation shaft body.
7. The slide rail mechanism with the locking device according to claim 1, wherein the bottom of the cavity of the outer slide rail is provided with a plurality of first threaded holes, and the outer slide rail is fixedly connected with the outer bracket through the first threaded holes.
8. The slide rail mechanism with the locking device as claimed in claim 1, wherein the inner slide rail is provided with a plurality of second threaded holes, and the inner slide rail is connected with the external bearing mechanism through the second threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210629827.3A CN114876952A (en) | 2022-06-02 | 2022-06-02 | Slide rail mechanism with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210629827.3A CN114876952A (en) | 2022-06-02 | 2022-06-02 | Slide rail mechanism with locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114876952A true CN114876952A (en) | 2022-08-09 |
Family
ID=82680086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210629827.3A Pending CN114876952A (en) | 2022-06-02 | 2022-06-02 | Slide rail mechanism with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114876952A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH154592A (en) * | 1931-04-22 | 1932-05-15 | Genevoise Instr Physique | Device for blocking a slide on its slides. |
| US5785155A (en) * | 1995-11-22 | 1998-07-28 | Nippon Thompson Co., Ltd. | Linear motion clamping unit |
| CN2707423Y (en) * | 2004-06-25 | 2005-07-06 | 湖南沅江宇环实业有限公司 | Guide rail device of machine tool |
| EP1662159A1 (en) * | 2004-11-30 | 2006-05-31 | Accuride International GmbH | Linear guide system with actuator |
| CN103783852A (en) * | 2014-01-24 | 2014-05-14 | 无锡晶美精密滑轨有限公司 | Self-locking sliding rail |
| CN208370072U (en) * | 2018-07-17 | 2019-01-11 | 北京华茂世达科技有限公司 | It is a kind of for the novel zipper sliding rail fastening structure of subrack |
| CN209443383U (en) * | 2019-01-16 | 2019-09-27 | 贝正河北工程技术有限公司 | It is a kind of for substituting the supporting apparatus of bridge pad |
-
2022
- 2022-06-02 CN CN202210629827.3A patent/CN114876952A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH154592A (en) * | 1931-04-22 | 1932-05-15 | Genevoise Instr Physique | Device for blocking a slide on its slides. |
| US5785155A (en) * | 1995-11-22 | 1998-07-28 | Nippon Thompson Co., Ltd. | Linear motion clamping unit |
| CN2707423Y (en) * | 2004-06-25 | 2005-07-06 | 湖南沅江宇环实业有限公司 | Guide rail device of machine tool |
| EP1662159A1 (en) * | 2004-11-30 | 2006-05-31 | Accuride International GmbH | Linear guide system with actuator |
| CN103783852A (en) * | 2014-01-24 | 2014-05-14 | 无锡晶美精密滑轨有限公司 | Self-locking sliding rail |
| CN208370072U (en) * | 2018-07-17 | 2019-01-11 | 北京华茂世达科技有限公司 | It is a kind of for the novel zipper sliding rail fastening structure of subrack |
| CN209443383U (en) * | 2019-01-16 | 2019-09-27 | 贝正河北工程技术有限公司 | It is a kind of for substituting the supporting apparatus of bridge pad |
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