CN212002982U - Folding ladder for tunnel inspection - Google Patents
Folding ladder for tunnel inspection Download PDFInfo
- Publication number
- CN212002982U CN212002982U CN202020267150.XU CN202020267150U CN212002982U CN 212002982 U CN212002982 U CN 212002982U CN 202020267150 U CN202020267150 U CN 202020267150U CN 212002982 U CN212002982 U CN 212002982U
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- folding ladder
- friction
- ladder
- bracing piece
- threaded connection
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Abstract
The utility model relates to a folding ladder technical field just discloses a folding ladder is used in tunnel inspection, including the bracing piece, the fixed welding in middle part of bracing piece has the running-board, and the bottom threaded connection of left side bracing piece has the clutch blocks, and the bottom threaded connection of right side bracing piece has the friction strip, and both sides fixed mounting of running-board lower part has wire winding hub, and wire winding hub's left side fixedly connected with connects the claw. This folding ladder is used in tunnel inspection, through being provided with the clutch blocks, the friction strip reaches the purpose that stability is good with the connection claw, friction block and friction strip all with ground direct contact, there is not unsettled problem in the bottom, area of contact is big, make whole folding ladder more stable, be provided with corresponding friction tool in the bottom of the two in addition, can guarantee effectively that the folding ladder has good ground power of grabbing, the condition of skidding can not appear when placing the use, the connection claw links together the running-board of both sides simultaneously, make the stability of whole folding ladder improve greatly.
Description
Technical Field
The utility model relates to a folding ladder technical field specifically is a folding ladder is used in tunnel inspection.
Background
The folding ladder is a civil engineering article, assists workers to fall down on a construction site, and is opened when folded like a movable stair and is folded after being used up, so that the folding ladder is convenient to transfer.
The existing folding ladder for tunnel inspection has a plurality of problems: firstly, the environment in the tunnel is complicated, the ground condition information is not easy to control, the environment in the tunnel is often dark, the conditions of water accumulation and slipping are easy to occur, the common folding ladder is difficult to open and support for use, and the stability has a great problem.
In addition, the existing folding ladder for tunnel inspection is always used for overhauling workers to climb up, generally, one hand grasps the ladder, and the other hand utilizes a flashlight to illuminate and observe, so that the inspection effect is very poor, but if the folding ladder stands up for inspection, the falling danger is very easy to occur, and the folding ladder is very inconvenient to use.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a folding ladder is used in tunnel inspection possesses good and convenient to use's of stability advantage, has solved the problem of proposing among the above-mentioned background art.
The utility model provides a following technical scheme: the utility model provides a folding ladder for tunnel inspection, includes the bracing piece, the fixed welding in middle part of bracing piece has the running-board, and the bottom threaded connection of left side bracing piece has the clutch blocks, the right side the bottom threaded connection of bracing piece has the friction strip, the both sides fixed mounting of running-board lower part has wire winding hub, wire winding hub's left side fixedly connected with connection claw, the top fixed mounting of bracing piece has the rotation ware, the positive fixed mounting on rotation ware right side has the plastic alloy hose, the other end threaded connection of plastic alloy hose has the go-between, the screw thread mouth has been seted up to the other end of go-between, and the middle part fixed mounting of go-between has the leaded light cover, the fixed welding in top of rotation ware has.
Preferably, the bottom of the friction block is provided with a triangular friction tooth, and the size of the friction tooth is reduced from left to right in sequence.
Preferably, the connecting claw is movably clamped on the pedal plate, and the connecting claw is positioned on the second-step pedal plate.
Preferably, the two support bars and the cable in the winding hub form an isosceles triangle.
Preferably, the plastic alloy hose is threaded through the guide ring and the connection ring.
Preferably, the friction strip is in a trapezoid shape, the bottom of the friction strip is parallel to the ground, and the bottom of the friction strip is fixedly provided with a hard rubber block with a rough surface.
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. this folding ladder is used in tunnel inspection, through being provided with the clutch blocks, the friction strip reaches the purpose that stability is good with the connection claw, friction block and friction strip all with ground direct contact, there is not unsettled problem in the bottom, area of contact is big, make whole folding ladder more stable, be provided with corresponding friction tool in the bottom of the two in addition, can guarantee effectively that the folding ladder has good ground power of grabbing, the condition of skidding can not appear when placing the use, the connection claw links together the running-board of both sides simultaneously, make the stability of whole folding ladder improve greatly.
2. This folding ladder is used in tunnel inspection, through being provided with the light guide cover, go-between and plastic alloy hose reach the convenient purpose of use, often can appear comparatively dark place in the tunnel, the inspector often will hold the flashlight in one hand, hold the maintenance instrument in one hand, it is very inconvenient, the security is also poor, present user can be with flashlight threaded connection in the screw thread mouth, then the bending angle of manual regulation plastic alloy hose, just can make the flashlight oneself shine corresponding position, a user's hand has been liberated, light guide cover has certain spotlight nature in addition, make the light of flashlight can shine the position of needs more effectively.
Drawings
FIG. 1 is a schematic view of the whole structure of the present invention;
FIG. 2 is a back view of the structure of the present invention;
fig. 3 is an enlarged schematic view of the structure a of the present invention.
In the figure: 1. a support bar; 2. a foot pedal; 3. a friction block; 4. rubbing the strips; 5. a winding hub; 6. a connecting claw; 7. a rotator; 8. a plastic alloy hose; 9. a connecting ring; 10. a threaded opening; 11. a light guide cover; 12. a support frame; 13. a guide ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-3, a folding ladder for tunnel inspection, including a support rod 1, a pedal 2 is fixedly welded in the middle of the support rod 1, a friction block 3 is connected to the bottom of the support rod 1 on the left side through a thread, a friction strip 4 is connected to the bottom of the support rod 1 on the right side through a thread, a winding hub 5 is fixedly installed on both sides of the lower portion of the pedal 2, a connecting claw 6 is fixedly connected on the left side of the winding hub 5, a rotator 7 is fixedly installed on the top of the support rod 1, a plastic alloy hose 8 is fixedly installed on the front of the right side of the rotator 7, the other end of the plastic alloy hose 8 is connected with a connecting ring 9 through a thread, a threaded opening 10 is formed at the other end of the connecting ring 9, a light guide cover 11 is fixedly installed.
Wherein, the bottom of clutch block 3 is provided with triangle-shaped friction tooth, and the friction tooth size diminishes from turning right from a left side in proper order, and 3 sizes of clutch block are greater than bracing piece 1 far away, and the atress area can be bigger, is provided with the frictional force of triangle-shaped friction tooth increase and ground in 3 bottoms of clutch block, and bracing piece 1 often supports for inside slope in addition, and the friction tooth size diminishes the support condition that accords with bracing piece 1 completely from turning right from a left side in proper order.
Wherein, connect 6 swing joint of claw on running-board 2, and connect claw 6 to be located second order running-board 2, can guarantee to have a power of dragging between two bracing pieces 1, prevent that bracing piece 1 from appearing the too big problem of turning 7 and breaking of rotating of pressure, utilize to connect 6 swing joint of claw simple good usefulness again convenient.
Wherein, two bracing pieces 1 and wire winding hub 5 middle rope form an isosceles triangle, and regular triangle-shaped stable in structure is effective, can bear furthest's pressure for whole folding ladder is stable safe.
The plastic alloy hose 8 penetrates through the guide ring 13 to be in threaded connection with the connecting ring 9, the plastic alloy hose 8 has the capability of being twisted and molded, but a certain fatigue problem still exists after long-term use, and the guide ring 13 can be arranged to standardize the position of the plastic alloy hose 8 on one hand and assist in placing the hose on the other hand.
Wherein, rubbing strip 4 is trapezium, and 4 bottoms of rubbing strip are parallel with ground, and the bottom fixed mounting of rubbing strip 4 has the rough hard rubber piece in surface, and bottom and ground contact completely, and the lifting surface area just can be the biggest, can guarantee through being provided with rough hard rubber piece that the folding ladder is placed stably, can not slide.
The working principle is as follows: open two bracing pieces 1 to certain angle, pull out the rope from winding hub 5, on footboard 2 with connecting claw 6 swing joint another side, when needs the inspection, with flashlight threaded connection to the screw thread mouth 10 in the go-between 9, with plastic alloy hose 8 angle aim at the place that needs the inspection can, the user just can realize safe effectual maintenance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a folding ladder for tunnel inspection, includes bracing piece (1), its characterized in that: the middle of the support rod (1) is fixedly welded with a pedal (2), the bottom of the left support rod (1) is in threaded connection with a friction block (3), the bottom of the right support rod (1) is in threaded connection with a friction strip (4), two sides of the lower portion of the pedal (2) are fixedly provided with winding hubs (5), the left side of each winding hub (5) is fixedly connected with a connecting claw (6), the top of the support rod (1) is fixedly provided with a rotator (7), the front of the right side of the rotator (7) is fixedly provided with a plastic alloy hose (8), the other end of the plastic alloy hose (8) is in threaded connection with a connecting ring (9), the other end of the connecting ring (9) is provided with a threaded opening (10), the middle of the connecting ring (9) is fixedly provided with a light guide cover (11), and the top of the rotator, the right side of the support frame (12) is fixedly welded with a guide ring (13).
2. The ladder of claim 1, wherein: the bottom of the friction block (3) is provided with triangular friction teeth, and the sizes of the friction teeth are sequentially reduced from left to right.
3. The ladder of claim 1, wherein: the connecting claw (6) is movably clamped on the pedal (2), and the connecting claw (6) is positioned on the second-stage pedal (2).
4. The ladder of claim 1, wherein: the two support rods (1) and the rope in the winding hub (5) form an isosceles triangle.
5. The ladder of claim 1, wherein: the plastic alloy hose (8) penetrates through the guide ring (13) and is in threaded connection with the connecting ring (9).
6. The ladder of claim 1, wherein: the friction strip (4) is in a trapezoid shape, the bottom of the friction strip (4) is parallel to the ground, and a hard rubber block with a rough surface is fixedly mounted at the bottom of the friction strip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020267150.XU CN212002982U (en) | 2020-03-06 | 2020-03-06 | Folding ladder for tunnel inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020267150.XU CN212002982U (en) | 2020-03-06 | 2020-03-06 | Folding ladder for tunnel inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212002982U true CN212002982U (en) | 2020-11-24 |
Family
ID=73423552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020267150.XU Active CN212002982U (en) | 2020-03-06 | 2020-03-06 | Folding ladder for tunnel inspection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212002982U (en) |
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2020
- 2020-03-06 CN CN202020267150.XU patent/CN212002982U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 No.2 Xingzhi Road, Jiangpu street, Pukou District, Nanjing City, Jiangsu Province Patentee after: CCCC Tunnel & Bridge (Nanjing) Technology Co.,Ltd. Address before: 210000 No.2 Xingzhi Road, Jiangpu street, Pukou District, Nanjing City, Jiangsu Province Patentee before: CCCC Nanjing Traffic Engineering Management Co.,Ltd. |