CN201321337Y - Device for protecting elongation or contraction of step chain - Google Patents
Device for protecting elongation or contraction of step chain Download PDFInfo
- Publication number
- CN201321337Y CN201321337Y CNU2008203037953U CN200820303795U CN201321337Y CN 201321337 Y CN201321337 Y CN 201321337Y CN U2008203037953 U CNU2008203037953 U CN U2008203037953U CN 200820303795 U CN200820303795 U CN 200820303795U CN 201321337 Y CN201321337 Y CN 201321337Y
- Authority
- CN
- China
- Prior art keywords
- limit switch
- spring
- step chains
- escalator
- step chain
- 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.)
- Expired - Lifetime
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Escalators And Moving Walkways (AREA)
Abstract
The utility model discloses a device for protecting the elongation or contraction of a step chain, which comprises a step chain wheel (1) and a bracket (2) of the existing escalator. The bracket (2) is provided with a spring baffle (3) and a limit switch (4); a pulling rod (5) is arranged on the axle of the step chain wheel (1) and provided with a spring seat (6) and a limit switch contact block (7); the pull rod (5) between the spring stop (3) and the spring seat (6) is provided with a spring (8); and the limit switch contact block (7) is positioned at a contact of the limit switch (4). With the installation of the device for protecting the elongation or contraction of the step chain on an escalator, the limit switch of the device can act and cut off the power supply to stop the escalator automatically when the elongation or contraction of the step chain reaches the permitted length, thereby avoiding the escalator from running with fault, preventing accidents and ensuring the operation of escalators to be safer and more reliable.
Description
Technical field
The utility model relates to a kind of staircase fender guard, the fender guard that particularly a kind of step chains elongates or shortens.
Background technology
Escalator is continuous and big flow performance with it, firmly gets the market, and crowd's flows such as airport are than large user's favor.Step chains on the escalator should have fixing length requirement according to differing heights or length when mounted, if the length of step chains is elongated in operational process, or shortens, and might indicate that all staircase breaks down.If in a single day staircase breaks down, during particularly owing to the dragging chain fracture, staircase is under the weight effect of personnel and article on deadweight and the step, and it is sliding to cause the back fast; Therefore need a kind of fender guard that elongates or shortens at step chains specially, take place to prevent accident.
The utility model content
The purpose of this utility model is, the device that provides a kind of step chains to elongate or shorten protection when the distance between step chains generation elongation even fracture or ladder sprocket wheel and the tension side shortens non-artificially, makes staircase out of service, tries to avert accidents.
The technical solution of the utility model: a kind of step chains elongates or shortens the device of protection, comprises ladder sprocket wheel and support on the existing escalator; On support, be provided with spring stop and limit switch; Be provided with pull bar on the axle of ladder sprocket wheel, pull bar is provided with spring perch and limit switch contact block; On the pull bar between spring stop and the spring perch, be provided with spring; The limit switch contact block is positioned at the place, contact of limit switch.
Above-mentioned step chains elongates or shortens in the device of protection; the corresponding surface of described limit switch contact block and limit switch contact is provided with the vee shape groove; the contact of limit switch is positioned at the vee shape groove of limit switch contact block, and the distance between the two side of the contact of limit switch and vee shape groove is respectively apart from S with apart from E.
Aforesaid step chains elongates or shortens in the device of protection, described equal in length apart from S and step chains permission shortening; Described equal in length apart from E and step chains permission elongation.
Compared with prior art, on the existing staircase step chains is not installed and elongates or shortens fender guard, when the distance between step chains generation elongation even fracture or ladder sprocket wheel and the tension side shortens, can produce accident potential non-artificially.The utility model elongates or shortens fender guard because step chains has been installed on escalator, when step chains elongated or shortened permission length, the limit switch action on the fender guard was cut off the electricity supply, and escalator is shut down automatically, waits Awaiting Overhaul.So the utility model can effectively prevent to operate with failure when the distance between step chains generation elongation even fracture or ladder sprocket wheel and the tension side shortens, and has an accident, and makes the work of escalator safer, more reliable non-artificially.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Being labeled as among the figure: 1-ladder sprocket wheel, 2-support, 3-spring stop, 4-limit switch, 5-pull bar, 6-spring perch, 7-limit switch contact block, 8-spring, 9-V font groove.
The specific embodiment
Below in conjunction with drawings and Examples the device that a kind of step chains of the present utility model elongates or shortens protection is described in further detail, but not as the foundation of the utility model being done any restriction.
Embodiment.A kind of step chains of the present utility model elongates or shortens the device of protection, as shown in Figure 1.Comprise ladder sprocket wheel 1 and support 2 on the existing escalator; On support 2, be provided with spring stop 3 and limit switch 4; Be provided with pull bar 5 on the axle of ladder sprocket wheel 1, pull bar 5 is provided with spring perch 6 and limit switch contact block 7; On the pull bar 5 between spring stop 3 and the spring perch 6, be provided with spring 8; Limit switch contact block 7 is positioned at the place, contact of limit switch 4.Limit switch contact block 7 is provided with vee shape groove 9 with the corresponding surface of limit switch 4 contacts, the contact of limit switch 4 is positioned at the vee shape groove 9 of limit switch contact block 7, and the distance between the two side of the contact of limit switch 4 and vee shape groove 9 is respectively apart from S with apart from E.Apart from the length of S and the equal in length of step chains permission shortening; The described equal in length that allows elongation apart from length and the step chains of E.
Principle of work of the present utility model: when the utility model normally moves at escalator, the contact of limit switch just is positioned in the middle of the vee shape groove 9 of limit switch contact block 7, when the step chains of escalator shortens, chain hauls ladder sprocket wheel 1 and moves right, ladder sprocket wheel 1 is being with pull bar 5 also to move right, the vee shape groove 9 of pull bar 5 upper limit position switch contact blocks 7 is also moved right, at this moment vee shape groove 9 left sides dwindles apart from S, when the step chains of escalator shortens to permissible value, the contact that limit switch 4 is withstood on limit, vee shape groove 9 left side, the contact of limit switch 4 is depressed, disconnect the driving circuit in the control circuit, staircase is shut down; Same principle; when the step chains of escalator is extended; pull bar 5 is moved to the left under the effect of spring 8, and the vee shape groove 9 of pull bar 5 upper limit position switch contact blocks 7 also is moved to the left, and at this moment vee shape groove 9 the right dwindles apart from E; when the step chains of escalator is elongated to permissible value; the contact of limit switch 4 is depressed in the contact that vee shape groove 9 right edge are withstood limit switch 4, disconnects the driving circuit in the control circuit; staircase is shut down, up to protective effect.
Claims (3)
1. a step chains elongates or shortens the device of protection, comprises ladder sprocket wheel (1) and support (2); It is characterized in that: on support (2), be provided with spring stop (3) and limit switch (4); Be provided with pull bar (5) on the axle of ladder sprocket wheel (1), pull bar (5) is provided with spring perch (6) and limit switch contact block (7); On the pull bar (5) between spring stop (3) and the spring perch (6), spring (8) is housed; Limit switch contact block (7) is positioned at the place, contact of limit switch (4).
2. step chains according to claim 1 elongates or shortens the device of protection; it is characterized in that: described limit switch contact block (7) is provided with vee shape groove (9) with the corresponding surface of the contact of limit switch (4); the contact of limit switch (4) is positioned at the vee shape groove (9) of limit switch contact block (7), and the distance between the two side of the contact of limit switch (4) and vee shape groove (9) is respectively apart from S with apart from E.
3. step chains according to claim 2 elongates or shortens the device of protection, it is characterized in that: described equal in length apart from S and step chains permission shortening; Described equal in length apart from E and step chains permission elongation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203037953U CN201321337Y (en) | 2008-12-29 | 2008-12-29 | Device for protecting elongation or contraction of step chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203037953U CN201321337Y (en) | 2008-12-29 | 2008-12-29 | Device for protecting elongation or contraction of step chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321337Y true CN201321337Y (en) | 2009-10-07 |
Family
ID=41158724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203037953U Expired - Lifetime CN201321337Y (en) | 2008-12-29 | 2008-12-29 | Device for protecting elongation or contraction of step chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201321337Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274283A (en) * | 2013-06-09 | 2013-09-04 | 江南嘉捷电梯股份有限公司 | Step chain tensioning structure of escalator |
| CN104671052A (en) * | 2013-12-02 | 2015-06-03 | 通快电梯（苏州）有限公司 | Chain tensioning device |
| CN114180105A (en) * | 2021-12-28 | 2022-03-15 | 北京劢亚科技有限公司 | Solar panel and satellite |
-
2008
- 2008-12-29 CN CNU2008203037953U patent/CN201321337Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274283A (en) * | 2013-06-09 | 2013-09-04 | 江南嘉捷电梯股份有限公司 | Step chain tensioning structure of escalator |
| CN104671052A (en) * | 2013-12-02 | 2015-06-03 | 通快电梯（苏州）有限公司 | Chain tensioning device |
| CN114180105A (en) * | 2021-12-28 | 2022-03-15 | 北京劢亚科技有限公司 | Solar panel and satellite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: RHINE LIFT (CHINA) CO., LTD. Free format text: FORMER NAME: ZHEJIANG LHRHINE LIFT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 313009 Nanxun in Zhejiang province Huzhou city Nanxun District Economic Development Zone textile Xunjiang Road No. 66 Patentee after: Rhine elevator (China) Co., Ltd. Address before: 313009 Nanxun in Zhejiang province Huzhou city Nanxun District Economic Development Zone textile Xunjiang Road No. 66 Patentee before: Zhejiang Lhrhine Lift Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SICHER ELEVATOR CO., LTD. Free format text: FORMER NAME: RHINE LIFT (CHINA) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 313009 Zhejiang Province, Huzhou city Nanxun District Lian Senhe Avenue City Industrial Park, No. 1 Patentee after: SICHER ELEVATOR CO., LTD. Address before: 313009 Nanxun in Zhejiang province Huzhou city Nanxun District Economic Development Zone textile Xunjiang Road No. 66 Patentee before: Rhine elevator (China) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091007 |
|
| CX01 | Expiry of patent term |