CN205100864U - Ladder ladder's adjustable telescoping device - Google Patents
Ladder ladder's adjustable telescoping device Download PDFInfo
- Publication number
- CN205100864U CN205100864U CN201520829252.5U CN201520829252U CN205100864U CN 205100864 U CN205100864 U CN 205100864U CN 201520829252 U CN201520829252 U CN 201520829252U CN 205100864 U CN205100864 U CN 205100864U
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- CN
- China
- Prior art keywords
- cleat stanchion
- housing
- snap close
- ladder
- connector
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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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a ladder ladder's adjustable telescoping device which characterized in that includes: spur the switch, locate the upper end of the outer section bar of ladder, pull rod, laminating set up the outside surface of section bar outside ladder, and the top sets firmly on the pulling switch, the connecting piece has casing and cover plate, and the casing upper end sets firmly in the pull rod bottom, is equipped with swivel point in the casing, hasp, upper portion rotate to be connected in swivel point, and is equipped with the positioning tooth, rotating switch is including application of force portion and set firmly in the axis of rotation of application of force portion bottom and stir the round pin, spring, lower extreme support and lean on on the casing, and the upper end is passed through the separation blade and is supported the outer section bar by ladder, the protruding driving lever that is equipped with in upper portion of hasp, casing correspond the driving lever head and are equipped with two transmission separation blades, between the two transmission separation blades on the head of driving lever, when constituting the casing and making progress the displacement, the driving lever will upwards be stirred to the underdrive separation blade, constitute the locking that unblock hasp section bar in to ladder was outwards swung to the hasp. The utility model has the advantages of the operation is convenient, safe and reliable, and reasonable in design, compact structure.
Description
Technical field
The utility model relates to ladder, is specifically related to a kind of stretching device on the cleat stanchion of ladder.This stretching device, for regulating the length of cleat stanchion, regulates the height of ladder with this.
Background technology
Ladder is the common tool of climbing to a higher point.More common in ladder is vertical ladder and double ladder.In most cases, ladder can meet the needs of climbing to a higher point of user, but in some cases, during as needed the height of climbing to a higher point to exceed the limit of ladder as user, now ladder just cannot meet the requirement of climbing to a higher point.
In order to address this problem, industry has invented a kind of stretching device of cleat stanchion, and described cleat stanchion comprises the cleat stanchion outer profile that cleat stanchion inner profile and slip cap are located at this cleat stanchion inner profile outside; Described stretching device is fixedly arranged on described cleat stanchion outer profile, and one group of locating slot on relatively described cleat stanchion inner profile is arranged, and each described locating slot is equidistantly arranged along the length direction of cleat stanchion; By stretching device, position relationship between described cleat stanchion inner profile and described cleat stanchion outer profile is regulated to the unblock of locating slot described in differing heights position and locking; After long-term use, the prior art finds to there is following problem: in order to extend the total length of cleat stanchion as far as possible, described stretching device is fixedly arranged on the bottom of cleat stanchion shell, when causing needing to regulate ladder height at every turn, operator needs operation stretching device of bending over, very inconvenience.
Therefore, how to solve the deficiency that above-mentioned prior art exists, just become the problem that the utility model will be researched and solved.
Summary of the invention
The utility model provides a kind of adjustable and retractable device of ladder cleat stanchion, its object is to solve the unhandy problem of existing stretching device.
For achieving the above object, the technical solution adopted in the utility model is: a kind of adjustable and retractable device of ladder cleat stanchion, and described cleat stanchion comprises the cleat stanchion outer profile that cleat stanchion inner profile and slip cap are located at this cleat stanchion inner profile outside; Described stretching device is fixedly arranged on described cleat stanchion outer profile, and one group of locating slot on relatively described cleat stanchion inner profile is arranged, by stretching device, position relationship between described cleat stanchion inner profile and described cleat stanchion outer profile is regulated to the unblock of locating slot described in differing heights position and locking; Described stretching device comprises:
One Drawing switch, this Drawing switch is located at the upper end of described cleat stanchion outer profile, is connected with in described cleat stanchion outer profile by a position limiting structure;
One pull bar, this pull bar is arranged at the outer surface of described cleat stanchion outer profile along the laminating of sliding of the length direction of described cleat stanchion, and the top of this pull bar is fixedly arranged on described Drawing switch, is drawn the displacement done upwards by this Drawing switch;
A connection piece, has a housing and a cover plate; Described housing is positioned the lower end of described cleat stanchion outer profile by described cover plate, and the upper end of housing is fixedly arranged on the bottom of described pull bar, forms and links, and be provided with a run-on point in housing with described pull bar; Described cover plate covers at the outside of described housing, and forming described housing can only at the length direction top offset of described cleat stanchion;
One snap close, the top of this snap close is rotationally connected with described run-on point, and the main body forming snap close swings at the housing of the relatively described connector of the thickness direction of described cleat stanchion and connects; The corresponding described locating slot in side of the relatively described cleat stanchion inner profile of described housing is offered uncovered, accommodating for the positioning tooth on described snap close, coordinate by this positioning tooth and locating slot described in differing heights position the position relationship regulated between described cleat stanchion inner profile and described cleat stanchion outer profile;
One rotating switch, this rotating switch comprises a force section, a turning cylinder and is parallel to one of this turning cylinder stirs pin; Described force application part in the outside of described housing, described turning cylinder and described in stir pin and be fixedly arranged on described force application part in the side of enclosure interior; Described turning cylinder is mounted on the described run-on point in described connector, forms described rotating switch and described snap close coaxial rotation; A described inclined-plane laminating of stirring along the setting of thickness of shell direction in the corresponding described housing of pin is arranged, with when described rotating switch is to inner rotary, describedly stir pin outwards against the described inclined-plane of lasting compressing, form the length direction of described housing along described cleat stanchion to top offset;
One spring, the length direction along described cleat stanchion is arranged, and the lower end abutment of this spring is on described housing, and the relatively described cleat stanchion outer profile of a catch is passed through against location in the upper end of this spring;
Wherein, the top of described snap close is convexly equipped with a driving lever along the inner side of the corresponding described housing of thickness direction of described cleat stanchion, and described housing is then to the head of driving lever being provided with two transmission catch one on the other; The head of described driving lever to stretch into described in two between transmission catch, form when described housing is done to top offset by described pull bar traction, underdrive catch, by upwards stirring the head of described driving lever simultaneously, forms described snap close and outwards swings, thus unlock the locking of described snap close to described cleat stanchion inner profile.
Related content in technique scheme is explained as follows:
1., in such scheme, the setting of described Drawing switch, makes operator will no longer need to bend over can realize operating stretching device, time saving and energy saving.
2., in such scheme, the setting of described rotating switch, makes described ladder be retained below operative position to stretching device, is supplied to operator and more operates selection.
3. in such scheme, the setting of described spring, with when described stretching device does not affect by external force, described connector can rely on the tension force of spring keep down motion trend, and then keep described snap close to the locking of locating slot on described cleat stanchion inner profile, namely realize the self-locking of stretching device.
Self-lock mechanism whereby, when operator stops after to described Drawing switch action, this Drawing switch and the pull bar be connected with below Drawing switch and connector will automatically to bottom offsets, until the positioning tooth on described snap close locks the locating slot on described cleat stanchion inner profile again;
When operator stops after to described rotating switch action, this rotating switch and link will automatically to bottom offset in the connector of rotating switch, until the positioning tooth on described snap close locks the locating slot on described cleat stanchion inner profile again.
4., in such scheme, the position limiting structure of described Drawing switch is used for spacing Drawing switch, prevents it because the tension force effect lasts of spring is to bottom offset.
5. in such scheme, described rotating switch belongs to coaxial nonsynchronous design with described snap close coaxial rotation, and namely described rotating switch drives described snap close to rotate by described connector indirectly; Also have another embodiment, both coaxial and synchronous axial system, namely complete unblock by rotating switch direct effect snap close.
6., in such scheme, described connector is by upper connector and lower connector two parts are hinged forms; Described upper connector is fixedly arranged on the bottom of described pull bar, forms link with described pull bar; The lower end abutment of described spring is in described upper connector;
Described lower connector is positioned the lower end of described cleat stanchion outer profile by described cover plate, is provided with a run-on point in lower connector; Described cover plate covers at the outside of described lower connector, and forming described lower connector can only at the length direction top offset of described cleat stanchion.
The block design of upper and lower whereby connector, makes the difficulty of processing be reduced further in the shrink-proof situation of assurance function.
7. in such scheme, described spring realizes the self-locking of stretching device, further solving prior art must the problem of self latch-up structure ad hoc in addition, and then solve before operation stretching device regulates height to ladder, first to carry out the deficiency that rotating switch in stretching device is unlocked, because this simplify the step of operation, improve the efficiency of operation.
8., in such scheme, the bottom of described snap close is convexly equipped with a support bar along the inner side of the corresponding described housing of thickness direction of described cleat stanchion, and described housing is then to being provided with one against bar by support bar; Head and the described head against bar of described support bar are oppositely arranged, form when described housing by described spring order about do to bottom offset time, the head of described support bar mutually against support, forms the locking of described snap close maintenance to described cleat stanchion inner profile with the described head against bar.
Operating principle of the present utility model and advantage as follows:
The adjustable and retractable device of a kind of ladder cleat stanchion of the utility model, by the design one on the other of the Drawing switch of cleat stanchion upper end and the rotating switch of cleat stanchion lower end, the combination interlock of coupling apparatus miscellaneous part, provide when operator uses and respectively have an operative position up and down, compared to existing technologies, the utility model, without the need to operation of bending over, makes operation time saving and energy saving, significantly improve the experience of operator, its auto-lock function also significantly improves reliability and the safety of product.To sum up, the utility model has convenient, the safe and reliable advantage of operation, and reasonable in design, compact conformation.
Accompanying drawing explanation
Structure sectional view when accompanying drawing 1 is the utility model embodiment snap close locking cleat stanchion inner profile;
Accompanying drawing 2 is the partial enlarged drawing of Fig. 1;
Structure sectional view when accompanying drawing 3 is the utility model embodiment snap close unblock cleat stanchion inner profile;
Accompanying drawing 4 is the partial enlarged drawing of Fig. 3;
Structural representation when accompanying drawing 5 is the utility model embodiment snap close locking cleat stanchion inner profile;
Accompanying drawing 6 is the partial enlarged drawing of Fig. 5.
In above accompanying drawing: 1. cleat stanchion inner profile; 2. cleat stanchion outer profile; 3. locating slot; 4. Drawing switch; 5. limited block; 6. pull bar; 7. upper connector; 8. descend connector; 9. cover plate; 10. run-on point; 11. snap closes; 12. positioning tooths; 13. force sections; 14. turning cylinders; 15. stir pin; 16. inclined-planes; 17. springs; 18. catch; 19. driving levers; 20. upper driving catch; 21. underdrive catch; 22. support bars; 23. against bar.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: shown in accompanying drawing 1 ~ 6, a kind of adjustable and retractable device of ladder cleat stanchion, described cleat stanchion comprises the cleat stanchion outer profile 2 that cleat stanchion inner profile 1 and slip cap are located at this cleat stanchion inner profile 1 outside; Described stretching device is fixedly arranged on described cleat stanchion outer profile 2, and one group of locating slot 3 on relatively described cleat stanchion inner profile 1 is arranged, by stretching device, position relationship between described cleat stanchion inner profile 1 and described cleat stanchion outer profile 2 is regulated to the unblock of locating slot 3 described in differing heights position and locking; Described stretching device comprises:
One Drawing switch 4, this Drawing switch 4 is located at the upper end of described cleat stanchion outer profile 2, is connected with in described cleat stanchion outer profile 2 by a limited block 5; This limited block 5, for spacing Drawing switch 4, prevents it because the pulling force effect lasts of below is to bottom offset.
One pull bar 6, this pull bar 6 is arranged at the outer surface of described cleat stanchion outer profile 2 along the laminating of sliding of the length direction of described cleat stanchion, and the top of this pull bar 6 is fixedly arranged on described Drawing switch 4, is drawn the displacement done upwards by this Drawing switch 4;
A connection piece, is made up of with lower connector 8 two parts are hinged upper connector 7; The upper end of described upper connector 7 is fixedly arranged on the bottom of described pull bar 6, forms link with described pull bar 6; Described lower connector 8 is positioned the lower end of described cleat stanchion outer profile 2 by a cover plate 9, and is provided with a run-on point 10 in lower connector 8; Described cover plate 9 covers at the outside of described lower connector 8, and forming described lower connector 8 can only at the length direction top offset of described cleat stanchion;
One snap close 11, the top of this snap close 11 is rotationally connected with described run-on point 10, and the main body forming snap close 11 swings at the relatively described lower connector 8 of the thickness direction of described cleat stanchion and connects; The corresponding described locating slot 3 in side of the relatively described cleat stanchion inner profile 1 of described lower connector 8 is offered uncovered, accommodating for the positioning tooth 12 on described snap close 11, coordinate by this positioning tooth 12 and locating slot 3 described in differing heights position the position relationship regulated between described cleat stanchion inner profile 1 and described cleat stanchion outer profile 2;
One rotating switch, this rotating switch comprises force section 13, turning cylinder 14 and is parallel to one of this turning cylinder 14 stirs pin 15; Described force section 13 is positioned at the outside of described lower connector 8, described turning cylinder 14 and described in stir pin 15 and be fixedly arranged on the side that described force section 13 is positioned at lower connector 8 inside; Described turning cylinder 14 is mounted on the described run-on point 10 in described lower connector 8, forms described rotating switch and described snap close 11 coaxial rotation; Described inclined-plane 16 laminating of stirring along lower connector 8 thickness direction setting in the corresponding described lower connector 8 of pin 15 is arranged, with when described rotating switch is to inner rotary, described pin 15 of stirring, outwards against the described inclined-plane 16 of lasting compressing, forms the length direction of described lower connector 8 along described cleat stanchion to top offset;
One spring 17, the length direction along described cleat stanchion is arranged, and the lower end abutment of this spring 17 is in described upper connector 7, and the relatively described cleat stanchion outer profile 2 of a catch 18 is passed through against location in the upper end of this spring 17;
Wherein, the top of described snap close 11 is convexly equipped with a driving lever 19 along the inner side of the corresponding described lower connector 8 of thickness direction of described cleat stanchion, and described lower connector 8 is to the head of driving lever 19 being provided with two transmission catch 20,21 one on the other; The head of described driving lever 19 to stretch into described in two between transmission catch 20,21, form when described lower connector 8 is done to top offset by described pull bar 6 traction, underdrive catch 21 will upwards stir the head of described driving lever 19 simultaneously, form described snap close 11 outwards to swing, described positioning tooth 12 is unlocked with described locating slot 3, thus unlocks the locking of described snap close 11 to described cleat stanchion inner profile 1.Do to top offset when described lower connector 8 is upwards drawn by Drawing switch 4, or when being done to top offset by described rotating switch driving, described upper driving catch 20 is by the head simultaneously to driving lever described in lower compression 19, form described snap close 11 inwardly to swing, described positioning tooth 12 is coordinated locking with described locating slot 3, thus forms the locking of described snap close 11 to described cleat stanchion inner profile 1.
The bottom of described snap close 11 is convexly equipped with a support bar 22 along the inner side of the corresponding described lower connector 8 of thickness direction of described cleat stanchion, and described lower connector 8 is to being provided with one against bar 23 by support bar 22; Head and the described head against bar 23 of described support bar 22 are oppositely arranged, form when described lower connector 8 by described spring 17 order about do to bottom offset time, the head of described support bar 22 mutually against support, forms the locking that described snap close 11 keeps described cleat stanchion inner profile 1 with the described head against bar 23.
Wherein, the setting of described Drawing switch 4, makes operator will no longer need to bend over can realize operating stretching device, time saving and energy saving.The setting of described rotating switch, makes described ladder be retained below operative position to stretching device, is supplied to operator and more operates selection.
Wherein, the setting of described spring 17, with when described stretching device does not affect by external force, described upper connector 7 can rely on the tension force of spring 17 keep down motion trend, and then keep pressing down lower connector 8, thus keep described snap close 11 to the locking of locating slot 3 on described cleat stanchion inner profile 1, namely realize the self-locking of stretching device.
Self-lock mechanism whereby, when operator stops after to the action of described Drawing switch 4, this Drawing switch 4 and the pull bar 6 be connected with below Drawing switch 4 and upper and lower connector 7,8 will automatically to bottom offsets, until the positioning tooth 12 on described snap close 11 locks the locating slot 3 on described cleat stanchion inner profile 1 again; When operator stops after to described rotating switch action, this rotating switch and link will automatically to bottom offset in the lower connector 8 of rotating switch, until the positioning tooth 12 on described snap close 11 locks the locating slot 3 on described cleat stanchion inner profile 1 again.
Described spring 17 realizes the self-locking of stretching device, further solving prior art must the problem of self latch-up structure ad hoc in addition, and then solve before operation stretching device regulates height to ladder, first to carry out the deficiency that rotating switch in stretching device is unlocked, because this simplify the step of operation, improve the efficiency of operation.
Wherein, in the present embodiment, described rotating switch belongs to coaxial nonsynchronous design with described snap close coaxial rotation, and namely described rotating switch drives described snap close to rotate by described connector indirectly.Also have another embodiment, both coaxial and synchronous axial system, namely complete unblock by rotating switch direct effect snap close, separately do not do accompanying drawing explanation here.
The utility model passes through the design one on the other of the Drawing switch of cleat stanchion upper end and the rotating switch of cleat stanchion lower end, the combination interlock of coupling apparatus miscellaneous part, provide when operator uses and respectively have an operative position up and down, compared to existing technologies, the utility model is without the need to operation of bending over, make operation time saving and energy saving, significantly improve the experience of operator, its auto-lock function also significantly improves reliability and the safety of product.To sum up, the utility model has convenient, the safe and reliable advantage of operation, and reasonable in design, compact conformation.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (3)
1. an adjustable and retractable device for ladder cleat stanchion, described cleat stanchion comprises the cleat stanchion outer profile that cleat stanchion inner profile and slip cap are located at this cleat stanchion inner profile outside; Described stretching device is fixedly arranged on described cleat stanchion outer profile, and one group of locating slot on relatively described cleat stanchion inner profile is arranged, by stretching device, position relationship between described cleat stanchion inner profile and described cleat stanchion outer profile is regulated to the unblock of locating slot described in differing heights position and locking; It is characterized in that: described stretching device comprises:
One Drawing switch, this Drawing switch is located at the upper end of described cleat stanchion outer profile, is connected with in described cleat stanchion outer profile by a position limiting structure;
One pull bar, this pull bar is arranged at the outer surface of described cleat stanchion outer profile along the laminating of sliding of the length direction of described cleat stanchion, and the top of this pull bar is fixedly arranged on described Drawing switch, is drawn the displacement done upwards by this Drawing switch;
A connection piece, has a housing and a cover plate; Described housing is positioned the lower end of described cleat stanchion outer profile by described cover plate, and the upper end of housing is fixedly arranged on the bottom of described pull bar, forms and links, and be provided with a run-on point in housing with described pull bar; Described cover plate covers at the outside of described housing, and forming described housing can only at the length direction top offset of described cleat stanchion;
One snap close, the top of this snap close is rotationally connected with described run-on point, and the main body forming snap close swings at the housing of the relatively described connector of the thickness direction of described cleat stanchion and connects; The corresponding described locating slot in side of the relatively described cleat stanchion inner profile of described housing is offered uncovered, accommodating for the positioning tooth on described snap close, coordinate by this positioning tooth and locating slot described in differing heights position the position relationship regulated between described cleat stanchion inner profile and described cleat stanchion outer profile;
One rotating switch, this rotating switch comprises a force section, a turning cylinder and is parallel to one of this turning cylinder stirs pin; Described force application part in the outside of described housing, described turning cylinder and described in stir pin and be fixedly arranged on described force application part in the side of enclosure interior; Described turning cylinder is mounted on the described run-on point in described connector, forms described rotating switch and described snap close coaxial rotation; A described inclined-plane laminating of stirring along the setting of thickness of shell direction in the corresponding described housing of pin is arranged, with when described rotating switch is to inner rotary, describedly stir pin outwards against the described inclined-plane of lasting compressing, form the length direction of described housing along described cleat stanchion to top offset;
One spring, the length direction along described cleat stanchion is arranged, and the lower end abutment of this spring is on described housing, and the relatively described cleat stanchion outer profile of a catch is passed through against location in the upper end of this spring;
Wherein, the top of described snap close is convexly equipped with a driving lever along the inner side of the corresponding described housing of thickness direction of described cleat stanchion, and described housing is then to the head of driving lever being provided with two transmission catch one on the other; The head of described driving lever to stretch into described in two between transmission catch, form when described housing is done to top offset by described pull bar traction, underdrive catch, by upwards stirring the head of described driving lever simultaneously, forms described snap close and outwards swings, thus unlock the locking of described snap close to described cleat stanchion inner profile.
2. stretching device according to claim 1, is characterized in that: described connector is by upper connector and lower connector two parts are hinged forms; Described upper connector is fixedly arranged on the bottom of described pull bar, forms link with described pull bar; The lower end abutment of described spring is in described upper connector;
Described lower connector is positioned the lower end of described cleat stanchion outer profile by described cover plate, is provided with a run-on point in lower connector; Described cover plate covers at the outside of described lower connector, and forming described lower connector can only at the length direction top offset of described cleat stanchion.
3. stretching device according to claim 1, is characterized in that: the bottom of described snap close is convexly equipped with a support bar along the inner side of the corresponding described housing of thickness direction of described cleat stanchion, and described housing is then to being provided with one against bar by support bar; Head and the described head against bar of described support bar are oppositely arranged, form when described housing by described spring order about do to bottom offset time, the head of described support bar mutually against support, forms the locking of described snap close maintenance to described cleat stanchion inner profile with the described head against bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829252.5U CN205100864U (en) | 2015-10-23 | 2015-10-23 | Ladder ladder's adjustable telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829252.5U CN205100864U (en) | 2015-10-23 | 2015-10-23 | Ladder ladder's adjustable telescoping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205100864U true CN205100864U (en) | 2016-03-23 |
Family
ID=55516651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520829252.5U Withdrawn - After Issue CN205100864U (en) | 2015-10-23 | 2015-10-23 | Ladder ladder's adjustable telescoping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205100864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221065A (en) * | 2015-10-23 | 2016-01-06 | 苏州飞华铝制工业有限公司 | A kind of adjustable and retractable device of ladder cleat stanchion |
-
2015
- 2015-10-23 CN CN201520829252.5U patent/CN205100864U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221065A (en) * | 2015-10-23 | 2016-01-06 | 苏州飞华铝制工业有限公司 | A kind of adjustable and retractable device of ladder cleat stanchion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160323 Effective date of abandoning: 20170322 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |