Foundation pit ladder stand structure and edge protective fence assembly

Abstract

The utility model discloses a foundation pit crawling ladder structure and an edge protective fence assembly. The foundation pit crawling ladder structure comprises a crawling ladder mechanism and a protective fence mechanism installed on the crawling ladder mechanism. The crawling ladder mechanism comprises a main ladder assembly and a dragging auxiliary ladder assembly, the dragging auxiliary ladder assembly comprises a dragging ladder assembly, and the main ladder assembly comprises a main ladder assembly; the dragging ladder assembly slides on the main ladder assembly through a rolling structure, the rolling structure comprises a sliding groove formed in the main ladder assembly, and a plurality of short carrier rollers which abut against and roll on the main ladder assembly are rotationally connected into the sliding groove. The rolling structure further comprises a plurality of limiting sliding seats fixedly connected to the side edge positions of the dragging ladder frame, side edge limiting sliding openings communicated with the sliding groove are formed in the groove walls of the two sides of the sliding groove, and the limiting sliding seats are limited and slide in the side edge limiting sliding openings. And the dragging ladder frame is connected with the main ladder frame through a locking structure. According to the device, the total length of the ladder assembly is flexibly adjusted according to the depth of a foundation pit in a flexible and stable manner, so that the total length of the ladder assembly is flexibly adjusted according to construction requirements to meet the construction requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit ladders, and particularly relates to a foundation pit ladder structure and a edge protection railing assembly. Background Art

[0002] In building construction, it is often necessary to excavate a foundation pit to carry out operations in the foundation pit, such as driving piles in the foundation pit. Since the bottom of the foundation pit is lower than the ground, during the actual operation, and the operators need to enter the foundation pit from the ground and go up to the ground from the foundation pit during the construction operation.

[0003] The transportation of manpower and materials is realized through the movement of the operator between the foundation pit and the ground. Therefore, during the actual work process, a ladder is erected between the bottom of the foundation pit and the ground to enable the operator to transport manpower and goods between the foundation pit and the ground through the ladder.

[0004] However, during the construction process, since the depths of the foundation pits are different, during the actual work process, ladders of different heights are required to match the depths of the foundation pits. Moreover, during the actual work process, the depths at different positions of the same foundation pit are also different. Therefore, the ladders that need to be matched with different heights are different.

[0005] Therefore, during the actual work process, only ladders of different sizes and heights can be used for operation. Obviously, during the construction process, the ladders with a solid size structure cannot meet the flexible height adjustment and use requirements for different foundation pit depths during the actual construction process.

[0006] At the same time, during the use of the ladder, the ladder needs to be inclined and supported on the foundation pit wall, and a better inclined posture needs to be maintained. Therefore, during the actual use process, for a ladder with insufficient height, only by increasing the elevation angle can it be ensured that the ladder can extend to the ground. However, if the elevation angle is too large, during the actual use process, the operator's stability on the ladder is not high, and there is a defect that the operator is prone to fall backward. Summary of the Utility Model

[0007] Based on the above background, the purpose of the utility model is to provide a foundation pit ladder structure and a edge protection railing assembly.

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A foundation pit ladder structure and a edge protection railing assembly, comprising a ladder mechanism and a railing mechanism installed on the ladder mechanism;

[0010] The ladder mechanism includes a main ladder assembly and a towing sub-ladder assembly slidably arranged on the main ladder assembly. The towing sub-ladder assembly includes a towing ladder frame, and the main ladder assembly includes a main ladder frame;

[0011] The described towing ladder frame slides on the main ladder frame through a rolling structure, and the rolling structure includes a chute opened on the main ladder frame, and several short idler rollers that are in contact with and roll on the main ladder frame are rotatably connected in the chute;

[0012] The rolling structure further includes several limit sliding seats fixedly connected to the side positions of the towing ladder frame, and side limit sliding openings communicating with the chute are opened on the groove walls on both sides of the chute, and the limit sliding seats are limited and slide in the side limit sliding openings;

[0013] The towing ladder frame is connected to the main ladder frame through a locking structure, and the locking structure includes several locking holes opened on the towing ladder frame. The locking structure further includes a fixed seat fixedly connected to the lower end position of the main ladder frame, and a pin screw rod that is screwed on the fixed seat and is fixed in the locking hole.

[0014] Preferably, the main ladder frame includes ladder frame rods arranged at intervals on the front and rear sides, and several collapse plates are fixedly connected between the ladder frame rods;

[0015] The towing ladder frame is respectively in contact with and rolls on the ladder frame rods through a rolling structure.

[0016] Preferably, the towing ladder frame includes towing ladder frame rods arranged at intervals on the front and rear sides, and several U-shaped collapse rods are fixedly connected between the towing ladder frame rods.

[0017] Preferably, several limit sliding seats are respectively fixedly connected to the side walls on both sides of the upper ends of the towing ladder frame rods.

[0018] Preferably, an upper L-shaped upper support rod is integrally formed at the upper end of the ladder frame rod, and an upper support plate is fixedly connected between the upper L-shaped upper support rods.

[0019] Preferably, a lower L-shaped support rod is integrally formed at the lower end of the towing ladder frame rod.

[0020] Preferably, guardrail mechanisms are respectively assembled and connected on the ladder frame rods.

[0021] Preferably, each of the guardrail mechanisms includes a guardrail frame, and hinge fixing rods for hinging the guardrail frame are respectively fixedly connected to the upper and lower end positions of the ladder frame rod.

[0022] Preferably, hinge columns for hinging on the hinge fixing rods are integrally formed at the upper and lower ends of the guardrail frame;

[0023] Locking holes are opened on the hinge columns, and lock screw rods passing through the locking holes are screwed on the hinge fixing rods;

[0024] After rotating the guardrail frame to the vertical state, the locking screw passes through the lock hole and then penetrates the hinged fixing rod.

[0025] Preferably, the guardrail frame includes guardrail bars, and a horizontal railing is fixedly connected to the lower end of the guardrail bars. A plurality of vertical railings are fixedly connected between the horizontal railing and the guardrail bars.

[0026] The utility model has the following beneficial effects:

[0027] 1. It realizes the adjustment of the sliding of the towing ladder frame rod on the main ladder frame in a stable sliding manner. Specifically, the towing ladder frame slides on the main ladder frame through a rolling structure. The rolling structure includes a chute opened on the main ladder frame, and a plurality of short idler rollers that are rotationally connected in the chute and abut and roll on the main ladder frame. Moreover, the towing ladder frame rod is limited in the chute and supported by the rotating short idler rollers, so as to realize that during the process of pushing and pulling the towing ladder frame rod, the towing ladder frame rod slides down in a rolling manner to adjust the total length of the ladder frame.

[0028] At the same time, the rolling structure further includes a plurality of limiting sliding seats fixedly connected to the side positions of the towing ladder frame. Side limiting sliding openings communicating with the chute are opened on the groove walls on both sides of the chute, and the limiting sliding seats are limited and slide in the side limiting sliding openings. In this way, the towing ladder frame rod is limited in the ladder frame rod, so that the towing ladder frame rod can slide back and forth between the ladder frame rods while maintaining the limiting and non-separating state.

[0029] In this way, the towing ladder frame rod can be slid back and forth in a very stable and flexible manner to adjust the total length. By sliding in a very flexible and stable manner to adjust the total length of the ladder, it is convenient to flexibly adjust the total length of the ladder frame according to the depth of the foundation pit, and further convenient to flexibly adjust the total length of the ladder frame according to the construction needs to meet the construction requirements.

[0030] 2. The locking structure includes a plurality of lock holes opened on the towing ladder frame. The locking structure further includes a fixed seat fixedly connected to the lower end position of the main ladder frame, and a pin screw that is threadedly connected to the fixed seat and is inserted into the lock hole. It realizes the positioning state after flexibly adjusting the ladder frame according to the actual depth of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present invention;

[0033] Figure 2 This is a schematic structural diagram of the rolling structure in the embodiment of the present utility model;

[0034] Figure 3 This is a schematic structural diagram of the chute and the side limiting slide opening in the embodiment of the present utility model;

[0035] Figure 4 This is a schematic structural diagram of the locking hole opened on the towing ladder frame in the embodiment of the present utility model;

[0036] Figure 5 This is a schematic structural diagram of the locking structure in the embodiment of the present utility model.

[0037] In the figure: 11 ladder frame rods, 111 hinged fixing rods, 1111 locking screw rods, 12 collapsible plates, 13 chutes, 131 side limiting slide openings, 14 short idler rollers, 21 towing ladder frames, 211 limiting sliding seats, 22 U-shaped collapsible rods, 31 guardrail rods, 32 horizontal railings, 41 fixing seats, 411 pin screw rods. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0040] In addition, the descriptions such as "first" and "second" in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] Embodiment 1

[0042] As Figures 1-5As shown, a foundation pit ladder structure and edge guardrail assembly include a ladder mechanism and a guardrail mechanism installed on the ladder mechanism.

[0043] The specific structure of the ladder mechanism is:

[0044] The ladder mechanism includes a main ladder assembly and a towing auxiliary ladder assembly slidably arranged on the main ladder assembly. The towing auxiliary ladder assembly is lengthened by a push-sliding method, thereby adjusting the length of the entire ladder mechanism. During the working process, the length of the entire ladder mechanism can be flexibly adjusted according to the depth of the foundation pit, so that it is convenient to tilt and lean against the foundation pit.

[0045] Specifically, the towing auxiliary ladder assembly includes a towing ladder frame 21 (the towing ladder frame 21 includes towing ladder frame rods spaced apart at the front and rear sides, and a plurality of U-shaped collapse rods are fixedly connected between the towing ladder frame rods), and the main ladder assembly includes a main ladder frame (the specific structure of the main ladder frame is: the main ladder frame includes ladder frame rods spaced apart at the front and rear sides, and a plurality of collapse plates 12 are fixedly connected between the ladder frame rods 11). In the process of pushing, pulling, and sliding the towing ladder frame rod, the collapse plate passes through the U-shaped opening of the U-shaped collapse rod 22.

[0046] In order to achieve a smooth sliding adjustment of the towing ladder frame rod to slide on the main ladder frame, the towing ladder frame 21 slides on the main ladder frame through a rolling structure, and the rolling structure includes a slide groove 13 opened on the main ladder frame (specifically, the slide groove 13 is opened on the ladder frame rod 11), and a plurality of short rollers 14 that roll on the main ladder frame are rotatably connected in the slide groove 13 (the two ends of the short rollers 14 are rotatably connected to the groove wall of the slide groove 13 through a fixedly connected rotating shaft).

[0047] In addition, the drag ladder rod is limited in the slide groove 13 and supported on the rotating short roller 14, so that during the operation, when the drag ladder rod is pushed and pulled, the drag ladder rod slides down in a rolling manner to adjust the total length of the ladder.

[0048] At the same time, the rolling structure also includes a plurality of limit slides fixedly connected to the side positions of the drag ladder frame, and the groove walls on both sides of the slide groove 13 are provided with side limit slides 131 connected to the slide groove 13, and the limit slides are limited and slide in the side limit slides 131. Specifically, a plurality of limit slides 211 are fixedly connected to the side walls on both sides of the upper end of the drag ladder frame rod. In this way, the drag ladder frame rod is limited in the ladder frame rod 11, and the drag ladder frame rod and the ladder frame rod 11 can be pushed, pulled and slid, and the limit is kept in a non-detached state.

[0049] In this way, the overall length of the ladder frame rod can be adjusted by sliding and dragging the ladder frame rod in a push-pull manner in an extremely stable and flexible manner.

[0050] Example 2

[0051] likeFigures 1-5 As shown, on the basis of the structure of Embodiment 1 in this embodiment, after the length of the towing ladder frame rod is adjusted by dragging, in order to facilitate locking the towing ladder frame rod, the above-mentioned towing ladder frame 21 is connected to the main ladder frame through a locking structure. The locking structure includes a number of locking holes A opened on the towing ladder frame 21. The locking structure further includes a fixed seat 41 fixedly connected to the lower end position of the main ladder frame. A pin screw 411 fixedly inserted into the locking hole A is threadedly connected to the fixed seat 41.

[0052] Specifically, fixed seats 41 are welded to the lower ends of the ladder frame rods 11. After the total length of the towing ladder frame rod is adjusted by sliding, it is locked into the locking holes A at different positions through the pin screws 411 to position the towing ladder frame rod. Thus, the towing ladder frame rod is kept stable.

[0053] And after the above method realizes flexible adjustment according to actual length requirements, the positioning state is maintained.

[0054] Embodiment 3

[0055] As Figures 1-5 shown, on the basis of the structure of Embodiment 2 in this embodiment, an upper L-shaped upper bracing rod is integrally formed at the upper end of the above-mentioned ladder frame rod 11. An upper bracing plate B is fixedly connected between the upper L-shaped upper bracing rods. The upper L-shaped upper bracing rod / upper bracing plate B is used to support on the ground and form a pulling and hanging, thereby keeping the upper end pulling and hanging stable.

[0056] Similarly, a lower L-shaped support rod is integrally formed at the lower end of the above-mentioned towing ladder frame rod. The lower L-shaped support rod plays a role in supporting on the foundation pit.

[0057] Embodiment 4

[0058] As Figures 1-5 shown, on the basis of the structure of Embodiment 3 in this embodiment, guardrail mechanisms are respectively assembled and connected on the above-mentioned ladder frame rods 11.

[0059] Specifically, each guardrail mechanism includes a guardrail frame. At the same time, articulated fixing rods 111 for articulating the guardrail frame are fixedly connected to the upper and lower end positions of the ladder frame rod 11 respectively. Articulated columns for articulating on the articulated fixing rods 111 are integrally formed at the upper and lower ends of the guardrail frame; locking holes A (the shape of the locking holes A is rectangular and has a certain length) are opened on the articulated columns. A locking screw 1111 penetrating through the locking holes A is threadedly connected to the articulated fixing rod 111. After the guardrail frame is rotated to the vertical state, the locking screw 1111 penetrates through the locking hole A (the shape of the locking hole A is rectangular and has a certain length. After the guardrail frame is turned over, the locking hole A communicates with the threaded through hole on the articulated fixing rod 111) and then penetrates through the articulated fixing rod 111.

[0060] The above-mentioned guardrail frame includes guardrail bars 31 (hinged columns integrally formed at the upper and lower ends of the guardrail bars 31 and hinged to the hinged fixed bars 111), a horizontal railing 32 is fixedly connected to the lower end of the guardrail bar 31, and a plurality of vertical railings are fixedly connected between the horizontal railing 32 and the guardrail bar 31.

[0061] The flip guardrail frame is flipped to a vertical state to achieve protection in the above manner.

[0062] Certainly, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A foundation pit ladder structure and edge guardrail assembly, characterized in that: It includes a ladder mechanism and a guardrail mechanism installed on the ladder mechanism; The ladder climbing mechanism comprises a main ladder assembly and a towing auxiliary ladder assembly slidably arranged on the main ladder assembly, the towing auxiliary ladder assembly comprises a towing ladder frame, and the main ladder assembly comprises a main ladder frame; The traction ladder frame slides on the main ladder frame through a rolling structure, and the rolling structure includes a slide groove opened on the main ladder frame, and a plurality of short rollers that roll against the main ladder frame are rotatably connected in the slide groove; The rolling structure also includes a plurality of limit slides fixedly connected to the side positions of the traction ladder frame, and the groove walls on both sides of the slide groove are provided with side limit slides connected to the slide groove, and the limit slides are limited and slid in the side limit slides; The traction ladder frame is connected to the main ladder frame via a locking structure, which includes a plurality of locking holes on the traction ladder frame. The locking structure also includes a fixing seat fixedly connected to the lower end of the main ladder frame, and a pin screw is threadedly connected to the fixing seat and fixed in the locking hole.

2. The foundation pit ladder structure and edge guardrail assembly according to claim 1, characterized in that: The main ladder frame includes ladder frame rods spaced apart at the front and rear sides, and a plurality of collapse plates are fixedly connected between the ladder frame rods; The ladder rack rods are respectively opposed to rolling and dragging the ladder rack through rolling structures.

3. The foundation pit ladder structure and edge guardrail assembly according to claim 2, characterized in that: The towing ladder frame comprises towing ladder frame rods which are arranged at intervals on the front and rear sides, and a plurality of U-shaped collapse rods are fixedly connected between the towing ladder frame rods.

4. The foundation pit ladder structure and edge guardrail assembly according to claim 3, characterized in that: A plurality of limiting sliding seats are respectively fixedly connected to the side walls on both sides of the upper end of the towing ladder frame rod.

5. The foundation pit ladder structure and edge guardrail assembly according to claim 2, characterized in that: An upper L-shaped upper crossbar is integrally formed at the upper end of the ladder frame rod, and an upper crossbar is fixedly connected between the upper L-shaped upper crossbars.

6. The foundation pit ladder structure and edge guardrail assembly according to claim 2, characterized in that: A lower L-shaped support rod is integrally formed at the lower end of the towing ladder frame rod.

7. The foundation pit ladder structure and edge guardrail assembly according to claim 2, characterized in that: The ladder rack rods are respectively equipped with guardrail mechanisms.

8. The foundation pit ladder structure and edge guardrail assembly according to claim 7, characterized in that: The guardrail mechanisms all include a guardrail frame, and the upper and lower ends of the ladder frame rods are respectively fixedly connected with hinged fixing rods hinged to the guardrail frame.

9. The foundation pit ladder structure and edge guardrail assembly according to claim 8, characterized in that: The upper and lower ends of the guardrail frame are integrally formed with hinged columns hinged to the hinged fixing rod; The hinged column is provided with a lock hole, and the hinged fixing rod is threadedly connected with a lock screw that passes through the lock hole; After the guardrail frame is rotated to a vertical state, the locking screw passes through the locking hole and then passes through the hinged fixing rod.

10. The foundation pit ladder structure and edge guardrail assembly according to claim 9, characterized in that: The guardrail frame comprises a guardrail rod, the lower end of the guardrail rod is fixedly connected with a horizontal railing, and a plurality of vertical railings are fixedly connected between the horizontal railing and the guardrail rod.

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