Crawling ladder with compensation adjustment for inclined surfaces

Abstract

The utility model discloses a kind of ladder stands suitable for inclined plane with compensating adjustment, the ladder stand with compensating adjustment includes ladder stand body, the bottom end both sides of ladder stand body are equipped with telescopic adjustable pedestal, the top end both sides of ladder stand body are equipped with telescopic hinge base, the end of telescopic hinge base away from ladder stand body is limit installation on corresponding fixed safety tongs adjustably, the both sides of ladder stand body are detachably equipped with folding guardrail, its device is equipped with angle adjustable pedestal and safety tongs, realize with angle base surface Effective landing and antiskid function, while ladder stand both sides are provided with retractable safety handrail fence, guarantee the traffic safety of personnel on ladder stand;The ladder stand device structure is simple, easy to install, convenient to carry, can adapt to various needs erecting ladder stand in working environment.

Description

Technical Field

[0001] This utility model relates to the field of hydropower ladder technology, and in particular to a ladder with compensation adjustment suitable for inclined surfaces. Background Technology

[0002] In the flood discharge facilities of hydropower station dams, various flood discharge and water-retaining facilities are installed in layers on the dam body. These are mainly used for regulating the water level in front of the dam. When the upstream water flow is large during the flood season, they are used to discharge excess river water and prevent dam overflow. When the upstream water flow is small during the dry season, they are used to retain water and store energy, thereby controlling the upstream water level in the reservoir area at a reasonable and safe height to ensure the safe operation of the hydropower station. For flood discharge facilities in the form of arc gates, routine inspections and daily maintenance are required annually to ensure their safe operation. However, such work requires personnel to reach the arc gates. Currently, ladders are installed on the flood discharge structures for personnel to pass through, but the arc gates need to be frequently rotated during operation. Fixed ladders cannot be installed above or near the gates to prevent affecting the safe operation of the equipment. Therefore, maintenance personnel cannot directly reach the arc gates to work. Each time such work is carried out, temporary ladders must be erected to provide a safe passage for personnel. How to efficiently, conveniently, and safely erect temporary ladders at the hinge points of arched gates is a problem that our operation and maintenance management personnel urgently need to solve.

[0003] Currently, temporary passages are generally set up in the following ways at the hinge of the arched gate, but all of them have certain inconveniences.

[0004] 1. Using steel pipes to erect temporary ladders can meet the needs of personnel passage, but the process involves working at heights, which poses a very high safety risk to the erecting personnel and is not the optimal construction plan.

[0005] 2. Special tooling was made. Custom ladders were made according to the span and height between the arched gates based on the fixed ladders. However, due to the staggered layout of the arched gates on site, there were significant differences in the size and angle between the hinges of each arched gate and the fixed ladders, making it impossible to achieve unified management of the special tooling.

[0006] Therefore, there is an urgent need for a ladder with compensation and adjustment suitable for inclined surfaces, which can provide a safe, convenient and efficient ladder erection solution for on-site maintenance of curved gates, improve work efficiency, reduce the labor intensity of workers, and ensure the safety of on-site maintenance personnel. Utility Model Content

[0007] This utility model provides a ladder with compensation and adjustment suitable for inclined surfaces, aiming to solve the problems mentioned above, such as the unsafe temporary passages and the large differences in size and angle between the hinges of each arched door and the fixed ladder due to the staggered layout of arched doors on site, which makes it impossible to achieve unified management of dedicated tooling.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A ladder with compensating adjustment for inclined surfaces is provided. The ladder with compensating adjustment includes a ladder body. Both sides of the bottom end of the ladder body are provided with telescopic adjustable bases that can extend and retract along the front and rear extension directions of the ladder body. Both sides of the top end of the ladder body are provided with telescopic hinge seats that can extend and retract along the front and rear extension directions of the ladder body. The ends of the telescopic hinge seats away from the ladder body are adjustablely limited and installed on corresponding fixed safety clamps. Both sides of the ladder body are detachably provided with folding guardrails.

[0010] Preferably, one end of the telescopic adjustable base is supported on the arc gate arm of the surface hole arc gate, and the other end of the telescopic adjustable base is supported on the arc gate hinge. The fixed safety clamps are clamped and fixed at the bottom entrance of the fixed vertical ladder.

[0011] More preferably, the ladder body, the telescopic adjustable base and the telescopic hinge are all provided with mounting posts, and the mounting posts are all provided with mounting clearance holes. The mounting clearance holes are through holes and extend toward the inner side of the ladder body. The outer wall of the mounting posts is provided with locking threads. The two sides of the ladder body are provided with handrail mounting holes corresponding to the folding guardrail.

[0012] Furthermore, each of the telescopic adjustable bases includes a second telescopic rod, which is slidably embedded in a corresponding mounting clearance hole. The outer wall of the second telescopic rod is provided with threads, and a corresponding telescopic adjustment locking sleeve is sleeved and threaded onto each second telescopic rod. The second telescopic rod forms a limiting engagement with the corresponding mounting post through the telescopic adjustment locking sleeve. One end of the telescopic adjustment locking sleeve forms a threaded engagement with the corresponding locking thread, and the other end of the telescopic adjustment locking sleeve forms a threaded engagement with the thread on the outer wall of the second telescopic rod.

[0013] Furthermore, the end of the second telescopic rod furthest from the corresponding telescopic adjustment locking sleeve is hinged to the base plate via a universal joint.

[0014] Specifically, each telescopic hinge includes a first telescopic rod, which is slidably embedded in a corresponding mounting clearance hole. The outer wall of the first telescopic rod is threaded, and a corresponding telescopic adjustment locking sleeve is sleeved and threaded onto each first telescopic rod. The first telescopic rod forms a limiting engagement with the corresponding mounting post through the telescopic adjustment locking sleeve. One end of the telescopic adjustment locking sleeve forms a threaded engagement with the corresponding locking thread, and the other end of the telescopic adjustment locking sleeve forms a threaded engagement with the thread on the outer wall of the first telescopic rod.

[0015] More specifically, each end of the first telescopic rod away from the corresponding telescopic adjustment locking sleeve is hinged with a movable hinge seat, which is adjustablely limited and installed on the corresponding fixed safety clamp.

[0016] In detail, each of the fixed safety clamps includes a threaded fixed rod, and the movable hinge is penetrated by one end of the corresponding fixed rod and forms a sliding fit with the corresponding fixed rod. Locking nuts are threaded on the fixed rods at both ends of the movable hinge, and the movable hinge clamping limit is located between the locking nuts.

[0017] More specifically, a lower jaw is fixed on the end of the fixed rod away from the movable hinge seat, and an upper jaw is slidably installed through the fixed rod. A locking nut is threaded on the fixed rod on the side of the upper jaw away from the lower jaw. Under the pressure of the locking nut, the upper jaw and the lower jaw form a clamping fit at the bottom entrance of the fixed vertical ladder.

[0018] Preferably, the folding guardrail includes two parallel guardrail uprights, and several parallel guardrail horizontal bars are hinged between the guardrail uprights. The guardrail uprights and guardrail horizontal bars cooperate to form a parallelogram. The bottom end of the guardrail uprights is hinged to the handrail mounting hole through a lockable mounting hinge seat.

[0019] The beneficial effects of this utility model are:

[0020] The device is equipped with a base and safety clamps that can be adjusted in length and angle to achieve effective ground contact and anti-slip function with angled base surfaces. At the same time, retractable safety handrails are set on both sides of the ladder to ensure the safety of personnel passing through the ladder. The ladder device has a simple structure, is easy to install and carry, and can adapt to various work environments where ladders need to be erected. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the appearance of the ladder body of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0023] Figure 3 This is an overall schematic diagram of the installation location of this utility model;

[0024] Figure 4 This is an enlarged schematic diagram of the installation position of this utility model;

[0025] In the diagram: 1. Concrete dam; 11. Surface outlet gate slot; 12. Surface outlet overflow channel;

[0026] 2. Lifting equipment; 21. Crane head;

[0027] 4. Surface-hole arc gate; 42. Arc gate support arm; 43. Arc gate hinge;

[0028] 60. Fixed vertical ladder;

[0029] 61. Ladders equipped with compensation and adjustment functions;

[0030] 611. Telescopic hinge seat; 6111. First telescopic rod; 6112. Movable hinge seat;

[0031] 612. Fixed safety clamp; 6121. Fixed rod; 6122. Upper jaw; 6123. Lower jaw;

[0032] 613. Ladder body; 6131. ​​Installation clearance hole; 6132. Locking thread; 6133. Handrail mounting hole;

[0033] 614. Folding guardrail; 6141. Install hinge base; 6142. Guardrail upright; 6143. Guardrail crossbar;

[0034] 615. Telescopic adjustable base; 6151. Second telescopic rod; 6152. Base plate;

[0035] 616. Telescopic adjustment locking sleeve; 617. Locking nut. Detailed Implementation

[0036] The embodiments will be further described below with reference to the accompanying drawings.

[0037] like Figures 1-4 As shown in the preferred embodiment 1, a ladder with compensation adjustment is applicable to the inclined surface. The ladder 61 with compensation adjustment includes a ladder body 613. Both sides of the bottom end of the ladder body 613 are provided with telescopic adjustable bases 615 that can extend and retract along the front and rear extension directions of the ladder body 613. Both sides of the top end of the ladder body 613 are provided with telescopic hinge seats 611 that can extend and retract along the front and rear extension directions of the ladder body 613. The ends of the telescopic hinge seats 611 away from the ladder body 613 are adjustablely limited and installed on the corresponding fixed safety clamps 612. Both sides of the ladder body 613 are detachably provided with folding guardrails 614.

[0038] The device is applicable to the surface overflow channel 12 above the surface orifice gate slot 11 inside the concrete dam 1. It is used to connect the arc gate hinge 43 of the surface orifice arc gate 4 to the fixed vertical ladder 60. The concrete dam 1 is equipped with a lifting device 2 including a crane head 21. One end of the telescopic adjustable base 615 is supported on the arc gate arm 42 of the surface orifice arc gate 4, and the other end of the telescopic adjustable base 615 is supported on the arc gate hinge 43. The fixed safety clamp 612 is clamped and fixed at the bottom entrance of the fixed vertical ladder 60.

[0039] The ladder body 613, the telescopic adjustable base 615, and the telescopic hinge 611 are all equipped with mounting posts at corresponding locations. Each mounting post has a mounting clearance hole 6131, which is a through hole extending inward toward the ladder body 613. The outer wall of each mounting post has a locking thread 6132. Handrail mounting holes 6133 are provided on both sides of the ladder body 613 at corresponding locations to the folding guardrail 614. This facilitates the installation and disassembly of each component.

[0040] In a preferred embodiment 2, each telescopic adjustable base 615 includes a second telescopic rod 6151. Each second telescopic rod 6151 is slidably embedded in a corresponding mounting clearance hole 6131, and the outer wall of the second telescopic rod 6151 is threaded. A corresponding telescopic adjustment locking sleeve 616 is sleeved and threaded onto each second telescopic rod 6151. The second telescopic rod 6151 forms a limiting engagement with the corresponding mounting post through the telescopic adjustment locking sleeve 616. One end of the telescopic adjustment locking sleeve 616 is threaded into the corresponding locking thread 6132, and the other end is threaded into the outer wall thread of the second telescopic rod 6151. By rotating the second telescopic rod 6151, its length exposed at the opening of the corresponding telescopic adjustment locking sleeve 616 can be adjusted, thereby achieving the purpose of telescopic extension. The second telescopic rod 6151 can be fixed to the locking thread 6132 of the corresponding mounting post through the telescopic adjustment locking sleeve 616.

[0041] The end of the second telescopic rod 6151 furthest from the corresponding telescopic adjustment locking sleeve 616 is hinged to the base plate 6152 via a universal joint. This facilitates the placement of the base plate 6152 on the platform of the arched door hinge 43 or the arched door arm 42, and the universal joint allows for easy angle adjustment.

[0042] The bottom of the base plate 6152 can be provided with anti-slip texture for anti-slip operation.

[0043] In a preferred embodiment 3, each telescopic hinge seat 611 includes a first telescopic rod 6111, which is slidably embedded in a corresponding mounting clearance hole 6131. ​​The outer wall of each first telescopic rod 6111 has threads, and a corresponding telescopic adjustment locking sleeve 616 is threaded onto each first telescopic rod 6111. The first telescopic rod 6111 forms a limiting fit with the corresponding mounting post through the telescopic adjustment locking sleeve 616. One end of the telescopic adjustment locking sleeve 616 is threaded into the corresponding locking thread 6132, and the other end is threaded into the threads on the outer wall of the first telescopic rod 6111. By rotating the first telescopic rod 6111, its length exposed at the opening of the corresponding telescopic adjustment locking sleeve 616 can be adjusted, thereby achieving the purpose of telescopic extension. The first telescopic rod 6111 can be fixed to the locking thread 6132 of the corresponding mounting post through the telescopic adjustment locking sleeve 616.

[0044] The first telescopic rod 6111 has a movable hinge seat 6112 hinged to the end away from the corresponding telescopic adjustment locking screw sleeve 616. The movable hinge seat 6112 is adjustablely limited and installed on the corresponding fixed safety clamp 612. The movable hinge seat 6112 facilitates the adjustment of the angle of the top of the ladder body 613.

[0045] As a preferred embodiment 4, the second telescopic rod 6151 and the first telescopic rod 6111 are the same size, and the telescopic adjustment locking sleeve 616 are also the same size.

[0046] In a preferred embodiment 5, each of the fixed safety clamps 612 includes a threaded fixing rod 6121. A movable hinge seat 6112 is penetrated by one end of the corresponding fixing rod 6121 and forms a sliding engagement with it. Locking nuts 617 are threaded onto the fixing rods 6121 at both ends of the movable hinge seat 6112, and the movable hinge seat 6112 is clamped between the locking nuts 617. This ensures the movement and fixation of the movable hinge seat 6112.

[0047] A lower jaw 6123 is fixed to the end of the fixed rod 6121 away from the movable hinge seat 6112. An upper jaw 6122 is slidably installed through the fixed rod 6121. A locking nut 617 is threaded onto the side of the fixed rod 6121 located away from the lower jaw 6123. Under the pressure of the locking nut 617, the upper jaw 6122 and the lower jaw 6123 form a clamping engagement at the bottom entrance of the fixed vertical ladder 60. This ensures the clamping and fixing of the top of the ladder, fixing the ladder at the bottom entrance of the fixed vertical ladder 60, and connecting the arc gate hinge 43 of the surface hole arc gate 4 with the fixed vertical ladder 60.

[0048] In a preferred embodiment 6, the folding guardrail 614 includes two parallel guardrail uprights 6142, with several parallel guardrail crossbars 6143 hinged between the uprights 6142. The uprights 6142 and crossbars 6143 cooperate to form a parallelogram. The bottom end of the uprights 6142 is hinged to the handrail mounting hole 6133 via a lockable mounting hinge seat 6141. By locking the mounting hinge seat 6141, the folding guardrail 614 can be locked to prevent it from deforming again, ensuring that the uprights 6142 remain vertical during use.

[0049] The working principle of this utility model:

[0050] Determine the installation details and dimensions of the ladder based on the actual installation situation. Adjust the ladder to its approximate shape. On one side, the worker tightens the locking nut 617 at the bottom entrance of the fixed vertical ladder 60, causing the upper jaw 6122 and lower jaw 6123 to clamp at the bottom entrance of the fixed vertical ladder 60. Then, attach one end of the ladder's telescopic adjustable base 615 to the higher arched door support arm 42. On the other side, the worker fine-tunes the telescopic adjustable base 615 so that both ends of the ladder's telescopic adjustable base 615 are attached to the set position, and the ladder is arranged at the set angle, completing the installation.

Claims

1. A ladder with compensatory adjustment suitable for inclined surfaces, characterized in that, The ladder (61) with compensation adjustment includes a ladder body (613). Both sides of the bottom end of the ladder body (613) are provided with telescopic adjustable bases (615). Both sides of the top end of the ladder body (613) are provided with telescopic hinge seats (611). The end of the telescopic hinge seat (611) away from the ladder body (613) is adjustablely limited and installed on the corresponding fixed safety clamp (612). Both sides of the ladder body (613) are provided with detachable folding guardrails (614).

2. A ladder with compensating adjustment for inclined surfaces according to claim 1, characterized in that, One end of the telescopic adjustable base (615) is supported on the arc gate arm (42) of the surface hole arc gate (4), and the other end of the telescopic adjustable base (615) is supported on the arc gate hinge (43). The fixed safety clamp (612) is clamped and fixed at the bottom entrance of the fixed vertical ladder (60).

3. A ladder with compensating adjustment for inclined surfaces according to claim 2, characterized in that, The ladder body (613) is provided with mounting posts at the corresponding positions of the telescopic adjustable base (615) and the telescopic hinge (611). Each mounting post is provided with a mounting clearance hole (6131), which is a through hole and extends toward the inside of the ladder body (613). Each mounting post is provided with a locking thread (6132) on its outer wall. Each side of the ladder body (613) is provided with a handrail mounting hole (6133) at the corresponding position of the folding guardrail (614).

4. A ladder with compensating adjustment for inclined surfaces according to claim 3, characterized in that, Each telescopic adjustable base (615) includes a second telescopic rod (6151). The second telescopic rod (6151) is slidably embedded in the corresponding mounting clearance hole (6131). The outer wall of the second telescopic rod (6151) is provided with threads. The second telescopic rod (6151) is fitted with a corresponding telescopic adjustment locking sleeve (616) and threadedly engaged. The second telescopic rod (6151) forms a limiting engagement with the corresponding mounting post through the telescopic adjustment locking sleeve (616). One end of the telescopic adjustment locking sleeve (616) is threadedly engaged with the corresponding locking thread (6132), and the other end of the telescopic adjustment locking sleeve (616) is threadedly engaged with the thread on the outer wall of the second telescopic rod (6151).

5. A ladder with compensating adjustment for inclined surfaces according to claim 4, characterized in that, The end of the second telescopic rod (6151) away from the corresponding telescopic adjustment locking sleeve (616) is hinged to the base plate (6152) through a universal hinge.

6. A ladder with compensating adjustment for inclined surfaces according to claim 5, characterized in that, Each telescopic hinge (611) includes a first telescopic rod (6111), which is slidably embedded in the corresponding mounting clearance hole (6131). The outer wall of the first telescopic rod (6111) is provided with a thread, and a corresponding telescopic adjustment locking sleeve (616) is sleeved and threaded on each first telescopic rod (6111). The first telescopic rod (6111) forms a limiting fit with the corresponding mounting post through the telescopic adjustment locking sleeve (616). One end of the telescopic adjustment locking sleeve (616) is threadedly engaged with the corresponding locking thread (6132), and the other end of the telescopic adjustment locking sleeve (616) is threadedly engaged with the thread on the outer wall of the first telescopic rod (6111).

7. A ladder with compensating adjustment for inclined surfaces according to claim 6, characterized in that, The first telescopic rod (6111) has a movable hinge seat (6112) at the end away from the corresponding telescopic adjustment locking screw sleeve (616). The movable hinge seat (6112) is adjustablely limited and installed on the corresponding fixed safety clamp (612).

8. A ladder with compensating adjustment for inclined surfaces according to claim 7, characterized in that, The fixed safety clamp (612) includes a threaded fixed rod (6121). The movable hinge (6112) is penetrated by one end of the corresponding fixed rod (6121) and forms a sliding fit with the corresponding fixed rod (6121). Locking nuts (617) are threaded on the fixed rods (6121) at both ends of the movable hinge (6112). The clamping limit of the movable hinge (6112) is located between the locking nuts (617).

9. A ladder with compensating adjustment for inclined surfaces according to claim 8, characterized in that, A lower jaw (6123) is fixed on the end of the fixed rod (6121) away from the movable hinge seat (6112). An upper jaw (6122) is slidably installed through the fixed rod (6121). A locking nut (617) is threaded on the fixed rod (6121) on the side of the upper jaw (6122) away from the lower jaw (6123). Under the pressure of the locking nut (617), the upper jaw (6122) and the lower jaw (6123) form a clamping fit at the bottom entrance of the fixed vertical ladder (60).

10. A ladder with compensating adjustment for inclined surfaces according to claim 9, characterized in that, The folding guardrail (614) includes two parallel guardrail posts (6142), and several parallel guardrail crossbars (6143) are hinged between the guardrail posts (6142). The guardrail posts (6142) and guardrail crossbars (6143) cooperate to form a parallelogram. The bottom end of the guardrail post (6142) is hinged to the handrail mounting hole (6133) through a lockable mounting hinge seat (6141).

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