CN220469760U - High-safety telescopic crawling ladder - Google Patents
High-safety telescopic crawling ladder Download PDFInfo
- Publication number
- CN220469760U CN220469760U CN202321736334.6U CN202321736334U CN220469760U CN 220469760 U CN220469760 U CN 220469760U CN 202321736334 U CN202321736334 U CN 202321736334U CN 220469760 U CN220469760 U CN 220469760U
- Authority
- CN
- China
- Prior art keywords
- ladder
- locking
- unlocking
- steps
- telescopic
- 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.)
- Active
Links
- 230000009193 crawling Effects 0.000 title abstract description 4
- 241000282326 Felis catus Species 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000008602 contraction Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Abstract
The utility model discloses a high-safety telescopic crawling ladder which comprises a ladder body, wherein the ladder body is provided with a plurality of steps with the same structure and gradual change in size, the steps are mutually nested, the steps are H-shaped, the steps are provided with locking devices for preventing the steps from sliding relatively, and the locking devices are provided with unlocking devices for enabling the steps to slide relatively. This application device sets up locking device and unlocking device on the step of telescopic cat ladder, utilizes the magnetic force absorption principle of electro-magnet, inserts the tip suction step in the step with the last locking screw of locking device and realizes the unblock, simple manufacture, convenient to use, convenient telescopic ladder accomodates, uses, prevents simultaneously that the staff from leaking locking device's locking because of the error, takes place the accident.
Description
Technical Field
The utility model relates to the field of ladders, in particular to a high-safety telescopic cat ladder.
Background
The telescopic ladder is composed of a plurality of ladder groups with the same structure and decreasing size, the adjacent ladder groups are stretched and contracted through locking structures, each stage of locking structure is required to be manually operated by a worker, the telescopic ladder is inconvenient, and due to the fact that the locking structures are more, the worker often leaks out of the locking of some locking structures due to errors, so that accidents occur in the using process of the telescopic ladder, danger occurs, in the patent with the application number of 2022212789738 and named as a telescopic ladder, a locking assembly is disclosed, the locking assembly comprises a driving ring and a locking strip, the driving ring is rotationally connected with the outer ladder section, and a yielding groove for the inner ladder section is formed in the driving ring; the locking strip fixed connection in drive the ring inner wall, the sliding tray that sets up along its length direction has been seted up to interior ladder festival, first constant head tank has been seted up to sliding tray one end, the second constant head tank has been seted up to the sliding tray other end, the locking strip passes the sliding tray, the locking strip with sliding tray inner wall sliding connection can improve the convenience of accomodating the extension ladder, but comparatively loaded down with trivial details during the preparation, the cost of manufacture is also comparatively expensive, also comparatively loaded down with trivial details during the use.
Disclosure of Invention
In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a high security telescoping ladder.
According to the technical scheme provided by the embodiment of the application, the telescopic crawling ladder with high safety is characterized in that the ladder body is provided with a plurality of steps with the same structure and gradual change in size, the steps are mutually nested, the steps are H-shaped, the steps are provided with locking devices for preventing the steps from sliding relatively, and the locking devices are provided with unlocking devices for enabling the steps to slide relatively; the locking device comprises a locking screw and a compression spring, one end of the locking screw movably penetrates through the end face of the step ladder, the compression spring is movably sleeved on the locking screw, one end of the compression spring is fixedly connected with the outer end face of the step ladder, the other end of the compression spring is fixedly connected with a nut of the locking screw, and the locking device realizes the relative movement between the locking step ladder and the unlocking step ladder by the length of the locking screw moving in the step ladder through the expansion and contraction of the compression spring. When the locking screw is tightly pressed and nested on the end face of the step in the other step under the action of the compression spring, the two steps move relatively, the friction force of the locking screw on the step needs to be overcome, and when the lower end face of the nested step is positioned above the locking screw, the locking screw continuously penetrates into the step, the lower end face of the nested step is blocked by the locking screw, and the descent of the nested step is prevented; the unlocking device comprises an unlocking shell and an electromagnet block, wherein the electromagnet block is fixed on the inner end surface of the unlocking shell, and the electromagnet block is electrified to realize electromagnetic attraction of the unlocking shell so as to realize that the unlocking shell is pulled out of the step ladder; after the electromagnet is electrified, the electromagnet has a certain electromagnetic attraction, and after the electromagnet is powered off, the electromagnet cannot have the electromagnetic attraction, so that the locking screw can be acted, and the locking screw can move inside and outside the step ladder.
Further, the unlocking housing covers the outside of the locking device.
Furthermore, the unlocking devices are connected through wires, so that the unlocking devices can be started directly through one switch, and the unlocking devices are more convenient and quicker to use.
Further, the locking device and the unlocking device are positioned at the upper end parts of the left end face and the right end face of the step ladder.
To sum up, the beneficial effects of this application: this application device sets up locking device and unlocking device on the step of telescopic cat ladder, utilizes the magnetic force absorption principle of electro-magnet, inserts the tip suction step in the step with the last locking screw of locking device and realizes the unblock, simple manufacture, convenient to use, convenient telescopic ladder accomodates, uses, prevents simultaneously that the staff from leaking locking device's locking because of the error, takes place the accident.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic view of the overall apparatus of the present utility model;
fig. 2 is a front sectional view showing the connection structure of the step ladder, the locking device and the unlocking device of the present utility model.
Reference numerals in the drawings: step ladder-1; a locking device-2; a locking screw-21; compression spring-22; unlocking means-3; unlocking the housing-31; and an electromagnet block-32.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the ladder body of the telescopic ladder is formed by mutually nesting a plurality of steps 1 with the same structure and gradual change size, locking devices 2 and unlocking devices 3 are respectively arranged at the upper end parts of the left end face and the right end face of the steps 1, and the unlocking devices 3 are covered on the outer sides of the locking devices 2.
As shown in fig. 2, one end of a locking screw 21 on the locking device 2 movably penetrates through the end face of the step ladder 1, a nut is arranged at the other end of the locking screw, a compression spring 22 is movably sleeved on the locking screw 21 between the nut and the outer end face of the step ladder 1, one end of the compression spring 22 is fixedly connected with the outer end face of the step ladder 1, and the other end is fixedly connected with the nut;
the unlocking shell 31 on the unlocking device 3 covers the outer side of the locking device 2, the unlocking shell 31 is fixed on the outer end face of the step ladder 1, and the electromagnet block 32 arranged on the inner end face of the unlocking shell 31 is opposite to the locking screw 21, so that a nut on the locking screw 21 can be magnetically adsorbed.
When the ladder body needs to be stretched, a plurality of steps 1 can be directly stretched until the locking screws 21 are positioned at the lower end face of the embedded steps 1, at this time, the embedded steps 1 are blocked by the locking screws 21, and unless the locking screws 21 are bent by pressing, the embedded steps 1 cannot slide relative to the embedded steps 1;
when the ladder body needs to be stored, the electromagnet block 32 in the unlocking device 3 is electrified, at the moment, the electromagnet block 32 is provided with electromagnetic attraction force, the locking screw 21 is adsorbed, at the moment, the locking screw 21 can be stretched against the restoring force of the compression spring 22, the locking screw 21 moves leftwards until the locking screw 21 is pulled out of the ladder 1, at the moment, the nested ladder 1 can slide relative to the nested ladder 1, namely, the nested ladder 1 is contracted into the nested ladder 1, and storage is realized.
This scheme can set up controlling means and rechargeable battery in unlocking device 3, realizes the circular telegram of electromagnet piece 32 in the unlocking device 3 through wireless control, makes a plurality of unlocking device 3 relatively independent simultaneously, prevents when electric wire connection, because of using improperly and the electric wire fracture appears, influences the accomodating and use of ladder body.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. Meanwhile, the scope of the utility model referred to in this application is not limited to the technical solutions of the specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or their equivalents without departing from the inventive concept. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (4)
1. The utility model provides a high security's telescopic cat ladder, includes the ladder body, the ladder body is the same for a plurality of structure, and step ladder (1) of size gradual change are nested each other, step ladder (1) are H type, its characterized in that:
a plurality of locking devices (2) for preventing the steps (1) from sliding relatively are arranged on the steps (1), and unlocking devices (3) for enabling the steps (1) to slide relatively are arranged on the locking devices (2); the locking device (2) comprises a locking screw (21) and a compression spring (22), one end of the locking screw (21) movably penetrates through the end face of the step ladder (1), the compression spring (22) is movably sleeved on the locking screw (21), one end of the compression spring (22) is fixedly connected with the outer end face of the step ladder (1), the other end of the compression spring is fixedly connected with a nut of the locking screw (21), and the locking device (2) realizes relative movement between the two step ladders (1) by means of the length of the locking screw (21) moving in the step ladder (1) through the expansion and contraction of the compression spring (22); the unlocking device (3) comprises an unlocking shell (31) and an electromagnet block (32), the electromagnet block (32) is fixed on the inner end face of the unlocking shell (31), and the electromagnet block (32) is electrified to conduct electromagnetic attraction on the unlocking shell (31) so as to enable the unlocking shell (31) to be pulled out of the ladder (1).
2. The high security telescopic ladder of claim 1, wherein: the unlocking housing (31) covers the outside of the locking device (2).
3. The high security telescopic ladder of claim 1, wherein: the unlocking devices (3) are connected through wires.
4. The high security telescopic ladder of claim 2, wherein: the locking device (2) and the unlocking device (3) are positioned at the upper end parts of the left end face and the right end face of the step ladder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321736334.6U CN220469760U (en) | 2023-07-04 | 2023-07-04 | High-safety telescopic crawling ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321736334.6U CN220469760U (en) | 2023-07-04 | 2023-07-04 | High-safety telescopic crawling ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220469760U true CN220469760U (en) | 2024-02-09 |
Family
ID=89778172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321736334.6U Active CN220469760U (en) | 2023-07-04 | 2023-07-04 | High-safety telescopic crawling ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220469760U (en) |
-
2023
- 2023-07-04 CN CN202321736334.6U patent/CN220469760U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11183731B2 (en) | Battery case unlocking apparatus, battery case, and quick battery case replacement system | |
| CN103723021A (en) | Locking mechanism for electric car chassis battery replacing | |
| US10907706B2 (en) | Telescopic adjuster | |
| CN103836105B (en) | Energy absorbing device | |
| CN220469760U (en) | High-safety telescopic crawling ladder | |
| CN101305959B (en) | Enhanced chest compressor | |
| CN102530675A (en) | Elevator device | |
| CN106488338B (en) | A kind of communication installation equipment based on Internet of Things | |
| CN110116720A (en) | Vehicle braking parking device | |
| CN108612739B (en) | Push-push type telescopic device | |
| CN207761443U (en) | A kind of transmission control device of Vehicular rechargeable electronic lock | |
| CN104512198B (en) | Universal wheel with electromagnetic type brake system | |
| CN109149263B (en) | Electronic lock and use socket, electric vehicle that charges of this electronic lock | |
| CN111502372B (en) | Flat-layer anti-falling structure and method applied to stereo garage | |
| CN209522535U (en) | A kind of fork truck push rod limiting device | |
| CN210881891U (en) | Fixing and limiting mechanism for folding of folding type object covering curtain | |
| CN105640282A (en) | Folding wall-hanging rack | |
| KR101223706B1 (en) | Variable length crutches | |
| CN108337886A (en) | Headstock telescopic device and scooter | |
| CN113418334A (en) | Temperature control box for refrigerator | |
| CN108104484B (en) | Assembled steel construction frame that slides | |
| CN215436571U (en) | Braking system and shallow | |
| CN221004945U (en) | Hidden type illuminating lamp for mountain climbing | |
| CN216641871U (en) | Door and window capable of turning | |
| CN215108669U (en) | Telescopic fork ladder device for inclined plane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |