Crawling ladder for engineering

Abstract

The utility model relates to an engineering ladder stand which comprises two parallel supporting feet and a plurality of transverse rods arranged between the supporting feet and used for climbing, the lower ends of the supporting feet are jointly provided with an anti-sinking plate, receding holes are formed in the anti-sinking plate in a penetrating mode, and the supporting feet are arranged in the receding holes in a penetrating mode and rotationally connected with the anti-sinking plate. And the lower ends of the supporting legs are lower than the lower end surface of the anti-settling plate. When the crawling ladder is placed on sludge in a river channel, the anti-settling plate can abut against the upper portion of the sludge, the contact area between the crawling ladder and the sludge is increased through the anti-settling plate, the gravity applied to the sludge by the crawling ladder due to the fact that desilting personnel pass through the crawling ladder is increased, and the pressure applied to the sludge by the crawling ladder can be reduced through the anti-settling plate; the ladder stand can stably stand above sludge and is not prone to sinking, the position of the ladder stand is not prone to change, and therefore dredging personnel can climb the ladder stand more easily.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of climbing ladders, in particular to an engineering climbing ladder. BACKGROUND

[0002] When a river channel dredging operation is performed, a situation that a worker needs to enter a river channel from which water is pumped out to perform auxiliary dredging work occurs. Since a dike is usually arranged along a river channel at present, the distance from the upper end of the dike to the bottom of the river channel is large, so that the worker cannot directly enter the bottom of the river channel from the dike and needs to use a climbing ladder or other auxiliary climbing tool to enter the bottom of the river channel from the dike.

[0003] The lower end of the climbing ladder is a vertical support structure, and the silt in the river channel is usually thick. When the lower end of the climbing ladder is directly inserted into the silt, the lower end of the climbing ladder gradually sinks into the silt. When the worker stands on the climbing ladder and the climbing ladder is subjected to gravity, the climbing ladder continues to sink, so that the climbing ladder cannot stably abut against the dike, thereby affecting the use of the climbing ladder.

[0004] Therefore, a new technical scheme needs to be proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] In order to stably support the climbing ladder when the climbing ladder is used to enter the river channel from the dike, the application provides an engineering climbing ladder.

[0006] The application provides an engineering climbing ladder, which adopts the following technical scheme:

[0007] The engineering climbing ladder comprises two parallel support legs, a plurality of horizontal rods arranged between the support legs for climbing, a sinking prevention plate arranged at the lower ends of the support legs, a plurality of accommodation holes arranged on the sinking prevention plate, and the support legs are rotatably arranged in the accommodation holes and lower than the lower end surface of the sinking prevention plate.

[0008] When the climbing ladder is placed on the silt in the river channel, the sinking prevention plate can abut against the upper side of the silt. The sinking prevention plate increases the contact area between the climbing ladder and the silt. When the worker passes through the climbing ladder, the gravity applied by the climbing ladder to the silt increases. The sinking prevention plate can reduce the pressure applied by the climbing ladder to the silt, so that the climbing ladder can stably stand on the upper side of the silt and is not easy to sink. The position of the climbing ladder is not easy to change, so that the worker can more easily climb the climbing ladder.

[0009] Optionally, the sinking prevention plate comprises a main plate connected to the support legs and side plates rotatably connected to the two sides of the main plate, and the side plates can be rotated to the side of the main plate away from the horizontal rods.

[0010] By adopting the technical scheme, when the ladder is carried, the side plate can be rotated towards the direction away from the horizontal rod relative to the main plate, thereby reducing the space required when the sinking prevention plate is moved in the state that it is not used, and making the carrying of the ladder more convenient.

[0011] Optionally, a limiting component for limiting the relative position between the side plate and the main plate is arranged between the side plate and the main plate, the limiting component comprises a connecting piece arranged on the side plate and a clamping piece arranged on the connecting piece, the connecting piece is arranged on both ends of the side plate perpendicular to the rotation axis of the side plate, and the clamping piece arranged on the side wall plate on the side away from the horizontal rod of the main plate can abut against the side wall of the main plate close to the horizontal rod.

[0012] By adopting the technical scheme, after the side plate is rotated, the relative position between the main plate and the side plate can be limited by the limiting component, thereby making the position of the side plate relative to the main plate not need to be manually limited during the carrying, and making the process of carrying the sinking prevention plate more convenient.

[0013] Optionally, an abutting rod is rotatably connected to the side wall of the main plate away from the horizontal rod, the abutting rod can abut against the side wall of the side plate that can abut against the main plate, a receiving groove is arranged on the side wall of the main plate for abutting against the side wall of the main plate, and the abutting rod is embedded in the receiving groove when the side plate abuts against the side wall of the main plate away from the horizontal rod.

[0014] By adopting the technical scheme, after the side plate is rotated to be parallel to the side plate, the abutting rod can be rotated to abut against the side wall of the side plate away from the horizontal rod, thereby limiting the position of the side plate relative to the main plate, and making the sinking prevention plate be able to stably placed on the silt, thereby making the use of the ladder more convenient.

[0015] Optionally, an anti-skid pad is arranged on the side wall close to the horizontal rod when the side plate and the main plate are in the same plane.

[0016] By adopting the technical scheme, when the sinking prevention plate abuts against the silt, the dredging personnel stands on the sinking prevention plate when climbing up and down the ladder, the anti-skid pad increases the friction between the sinking prevention plate and the dredging personnel, thereby making it not easy to slip when the dredging personnel stands on the sinking prevention plate, and reducing the safety risk in the process of climbing the ladder.

[0017] Optionally, a hook is arranged at the upper end of the supporting leg, and the hook can be hooked on the upper end of the dike.

[0018] By adopting the technical scheme, the relative position between the upper end of the ladder and the dike can be well limited by the hook, the position of the upper end of the ladder is kept stable, thereby when the lower end of the ladder is skewed or slides towards the direction away from the dike, the ladder can also be kept stable, and the climbing of the dredging personnel is not easily affected.

[0019] Optionally, the main plate is provided with a connecting assembly connecting the main plate with the legs, the connecting assembly comprises a connecting rod slidingly arranged on the main plate and an elastic member pushing the connecting rod to move towards the legs, the connecting rod is arranged in the legs and rotationally connected with the legs.

[0020] By using the above technical scheme, the connecting assembly is used to connect the dustproof plate with the legs, the dustproof plate can be detached from the legs when the ladder is not needed, the ladder can be carried in two parts, the total weight during carrying is reduced, and the carrying of the ladder is more convenient.

[0021] Optionally, a plurality of connecting holes are formed in the length direction of the side walls of the legs away from each other, and the connecting rod is arranged in the connecting holes.

[0022] By using the above technical scheme, the position of the connecting hole into which the connecting rod is inserted can be controlled according to the distance between the river bottom and the upper end of the dike, so that the hook can be connected with the upper end of the dike when the lower end of the ladder is inserted into the silt and the dustproof plate abuts against the silt.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. When the ladder is placed on the silt in the river, the dustproof plate can abut against the upper side of the silt, the contact area between the ladder and the silt is increased by the dustproof plate, the gravity applied by the ladder to the silt is increased when the dredging personnel passes through the ladder, the pressure applied by the ladder to the silt can be reduced by the dustproof plate, the ladder can be stably erected on the upper side of the silt and is not easy to sink, the position of the ladder is not easy to change, and thus the dredging personnel can climb the ladder more easily.

[0025] 2. The connecting assembly is used to connect the dustproof plate with the legs, the dustproof plate can be detached from the legs when the ladder is not needed, the ladder can be carried in two parts, the total weight during carrying is reduced, and the carrying of the ladder is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the embodiment of the present application is shown in the structure diagram;

[0027] Figure 2 The structure of the embodiment of the present application is shown in the structure diagram;

[0028] Figure 3 The structure of the embodiment of the present application is shown in the structure diagram;

[0029] Figure 4 The structure of the embodiment of the present application is shown in the structure diagram; Figure 3 The A part of the structure of the embodiment of the present application is shown in the enlarged view.

[0030] In the diagram, 1 is the support leg; 11 is the connecting hole; 12 is the hook; 2 is the crossbar; 3 is the anti-sinking plate; 31 is the clearance hole; 32 is the mounting base; 321 is the sliding groove; 33 is the fixing cover; 34 is the main board; 35 is the side plate; 351 is the receiving groove; 36 is the abutment rod; 37 is the anti-slip pad; 4 is the connecting assembly; 41 is the connecting rod; 42 is the elastic element; 43 is the push ring; 5 is the limiting assembly; 51 is the connector; 52 is the snap-fit ​​element; 521 is the guide slope. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses an engineering ladder, such as Figure 1 As shown, the system includes two parallel support legs 1 and several crossbars 2 positioned between the two support legs 1. The crossbars 2 are perpendicular to the support legs 1 and arranged along the length of the support legs 1, with equal spacing between adjacent crossbars 2. A sinking plate 3 is provided at the lower end of each of the two support legs 1. The sinking plate 3 includes a main plate 34 connected to the support legs 1 and side plates 35 respectively positioned on two mutually spaced side walls of the main plate 34. Two clearance holes 31 pass through the upper end of the main plate 34, and the support legs 1 pass through the two clearance holes 31 respectively.

[0033] like Figure 1 and Figure 2 As shown, the upper end of the main board 34 is provided with a connecting component 4 for connecting it to the support foot 1. Two mounting bases 32 are integrally formed on the main board 34, respectively located on the opposite sides of the two support feet 1. The connecting component 4 includes a connecting rod 41 passing through the mounting base 32 and an elastic element 42 that moves the connecting rod 41 toward the support foot 1. The connecting rod 41 is perpendicular to the support foot 1. Several connecting holes 11 are formed on the opposite sidewalls of the support feet 1, arranged along the length of the support foot 1. The connecting rod 41 passes through the mounting base 32 and is inserted into the connecting holes 11, allowing the main board 34 to be connected to the support foot 1 and also allowing the main board 34 to rotate relative to the support foot 1 along the axis of the connecting rod 41. A push ring 43 is coaxially fixed to the connecting rod 41. A sliding groove 321 is formed on the end face of the mounting base 32 away from the support foot 1, and the push ring 43 slides within the sliding groove 321. In this embodiment, the elastic element 42 is a spring. The elastic element 42 is sleeved on the connecting rod 41 and is located at the end of the pushing ring 43 away from the support leg 1. A fixing cover 33 is threaded onto the mounting base 32, which closes the opening of the sliding hole. The elastic element 42 abuts against the end face of the fixing cover 33 near the support leg 1. The connecting rod 41 passes through the fixing rod and slides with the fixing cover 33. A pull ring is provided at the end of the connecting rod 41 away from the support leg 1. By applying force to the pull ring, the connecting rod 41 can be easily moved, allowing it to be pulled out of the connecting hole 11.

[0034] As shown in Figure 3 the side plate 35 is rotatably connected with the main plate 34, so that the side plate 35 can be turned to the side wall of the main plate 34 away from the horizontal rod 2 and kept adhered when not in use, and the side plate 35 can also be arranged on the two side walls of the main plate 34 to maintain the unfolded state. The side plate 35 is also provided with a limiting assembly 5 for keeping it adhered to the end surface of the main plate 34 away from the horizontal rod 2, the limiting assembly 5 includes a connecting piece 51 arranged on the side plate 35 and a clamping piece 52 arranged on the connecting piece 51, the connecting piece 51 is integrally formed on the two side walls of the side plate 35 perpendicular to the rotation axis thereof, and the connecting piece 51 extends towards the lower end surface of the side plate 35 after unfolding, and the limiting piece is arranged at the end of the connecting piece 51 away from the side plate 35. The end surface of the limiting piece away from the side plate 35 is also provided with a guide inclined surface 521, the end of the guide inclined surface 521 away from the connecting piece 51 is inclined towards the side plate 35, so that when the side plate 35 is rotated towards the side of the main plate 34 away from the horizontal rod 2, the guide inclined surface 521 can abut against the main plate 34 to make the two limiting pieces move away from each other and to the side of the main plate 34 close to the horizontal rod 2, and then the limiting piece can abut against the side wall of the main plate 34 close to the horizontal rod 2, realizing the folding of the main plate 34 and the side plate 35 and limiting the relative position between the main plate 34 and the side plate 35, and the volume of the anti-sinking plate 3 is smaller during the climbing ladder carrying process, making the carrying process more convenient.

[0035] When the anti-sinking plate 3 is in use, the side plate 35 needs to be unfolded and kept in the unfolded state, therefore, the side wall of the main plate 34 away from the horizontal rod 2 is rotatably connected with two abutting rods 36, the two abutting rods 36 are arranged close to one side plate 35 respectively, and the rotation axis of the abutting rod 36 is parallel to the supporting leg 1. The abutting rod 36 can be rotated to abut against the side wall of the unfolded side plate 35 away from the horizontal rod 2, and the abutting rod 36 can also be rotated to the state of being entirely located on the side of the main plate 34 away from the horizontal rod 2. The unfolded side plate 35 is provided with a receiving groove 351 on the side wall away from the horizontal rod 2, when the side plate 35 is rotated to adhere to the side wall of the main plate 34 away from the horizontal rod 2, the abutting rod 36 can sink into the receiving groove 351, so that the turning of the side plate 35 will not be affected by the abutting rod 36, and the position of the side plate 35 relative to the main plate 34 can also be limited by the abutting rod 36 after the side plate 35 is completely unfolded.

[0036] As shown in Figure 1As shown, in order to prevent slipping when stepping on the main plate 34 or the side plate 35, the main plate 34 and the side plate 35 are provided with anti-skid pads 37 made of rubber material, which increase the friction to enable the person to stand stably on the main plate 34 or the side plate 35 without slipping, and make the process of climbing up or down the ladder more convenient.

[0037] Since the ladder is in an inclined state when the legs 1 are inserted into the sludge and the person stands on the sludge, the ladder may move away from the dike or be inclined, therefore, the upper ends of the legs 1 are provided with hooks 12, the rotation axes of the hooks 12 are parallel to the length direction of the crossbar 2, and the legs 1 are further provided with abutting blocks which can abut against the upper ends of the hooks 12, so that the hooks 12 can be kept in a relatively stationary state relative to the legs 1. The hooks 12 can be hooked on the upper end of the dike to limit the position of the upper end of the ladder, so that the position of the ladder relative to the dike is kept relatively stable, thereby keeping the climbing process stable.

[0038] The implementation principle of the embodiment is as follows: when it is needed to go up or down the dike to the river channel through the ladder, the limiting members are moved away from each other to make the limiting members no longer contact with the main plate 34, then the side plate 35 is turned to be away from the crossbar 2, the abutting rod 36 is turned to abut against the side wall of the side plate 35 away from the crossbar 2, the legs 1 are inserted into the accommodation holes 31, and the connecting rods 41 are inserted into the connecting holes 11 on the legs 1, so as to connect the anti-sinking plate 3 and the legs 1, the lower end of the ladder is abutted against the sludge, and the hooks 12 are hooked on the upper end of the dike close to the hose, then the ladder can be used to go up or down from the dike to the bottom of the river channel.

[0039] The embodiments of the specific embodiment are the preferred embodiments of the application, but do not limit the protection scope of the application, therefore: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. An engineering ladder comprising two parallel legs (1) and a plurality of rungs (2) arranged between the legs (1) for climbing, characterized in that: The lower end of the leg (1) is provided with an anti-sinking plate (3) together, the anti-sinking plate (3) is provided with a through hole (31), the leg is arranged in the through hole (31) and is rotatably connected with the anti-sinking plate (3), and the lower end of the leg (1) is lower than the lower end surface of the anti-sinking plate (3).

2. An engineering creeper as claimed in claim 1 wherein: The anti-sinking plate (3) comprises a main plate (34) connected to the leg and a side plate (35) rotatably connected to the two sides of the main plate (34), and the side plate (35) can be rotated to the side of the main plate (34) away from the horizontal rod (2).

3. An engineering creeper as claimed in claim 2 wherein: The side plate (35) and the main plate (34) are provided with a limiting component (5) for limiting the relative position of the two, the limiting component (5) comprises a connecting piece (51) arranged on the side plate (35) and a clamping piece (52) arranged on the connecting piece (51), the connecting piece (51) is arranged at the two ends of the side plate (35) perpendicular to its own rotation axis, and the clamping piece (52) on the side wall plate rotatable to the side of the main plate (34) away from the horizontal rod (2) can abut against the side wall of the main plate (34) close to the horizontal rod (2).

4. An engineering creeper as claimed in claim 2, wherein: The side wall of the main plate (34) away from the horizontal rod (2) is rotatably connected with an abutting rod (36), the abutting rod (36) can abut against the side wall of the side plate (35) which can abut against the main plate (34), the side wall for abutting against the side wall of the main plate (34) is provided with a containing groove (351), and when the side plate (35) abuts against the side wall of the main plate (34) away from the horizontal rod (2), the abutting rod (36) is embedded in the containing groove (351).

5. An engineering creeper as claimed in claim 2 wherein: When the side plate (35) and the main plate (34) are in the same plane, the side wall close to the horizontal rod (2) is provided with an anti-skid pad (37).

6. An engineering creeper as defined in claim 1, wherein: The upper end of the leg (1) is rotatably connected with a hook (12), and the hook (12) can be hooked on the upper end of the dike.

7. An engineering creeper as claimed in claim 2 wherein: The main plate (34) is provided with a connecting component (4) for connecting the leg, the connecting component (4) comprises a connecting rod (41) slidably arranged on the main plate (34) and an elastic member (42) for pushing the connecting rod (41) to move towards the leg, and the connecting rod (41) is arranged in the leg (1) and rotatably connected with the leg (1).

8. An engineering creeper according to claim 7, characterised in that: The side wall of the leg (1) away from each other is provided with a plurality of connecting holes (11) along the length direction, and the connecting rod (41) is arranged in the connecting hole (11).

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