Large support transfer trolley in narrow and small space

By designing a large bearing transfer trolley for confined spaces, and utilizing a combination of omnidirectional wheels and limit pins, the problem of difficult bearing replacement in confined spaces was solved, achieving efficient bearing transfer and replacement.

CN223803672UActive Publication Date: 2026-01-16ZHONGJIAO ROAD CONSTR TRANSPORTATION TECH CO LTD
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Patent Information

Application Number
CN202520501826.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-01-16
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

In confined spaces or complex bridge structures, bearing replacement faces multiple challenges, such as insufficient operating space, site limitations, and load control, resulting in low replacement efficiency.

Method used

A large support transfer trolley in a confined space was designed. It adopts a combination structure of bottom universal wheels, anchor bolts, steel ball universal wheels and limit pins to ensure that the trolley can operate flexibly in complex environments, prevent the support from slipping, and improve the transfer efficiency.

Benefits of technology

This trolley structure allows for flexible operation in confined spaces, improving the efficiency of support replacement, reducing labor intensity, and shortening replacement time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bridge reinforcement construction, and particularly discloses a large support transfer trolley in a narrow and small space. The longitudinal reinforcing ribs are fixedly connected to the exteriors of the transverse reinforcing ribs; through the arrangement of the bottom universal wheels, the anchor bolts, the steel ball universal wheels and the limiting plug pins, a tiled steel plate is supported on the framework structure of the trolley, the bottom universal wheels and the framework structure are anchored together through the anchor bolts, the plug pins can be taken out from the steel sleeves according to needs, and the hook positions of the plug pins need to be higher than a base plate of a support to be transferred. The support is prevented from sliding off the trolley, an old support is dragged to the trolley from the support padstone to be transferred out, then a new support is transferred to the padstone through the trolley, the support can be flexibly operated in a complex environment, the transfer efficiency is improved, the time needed for replacing the support is shortened, the labor intensity of workers is reduced, and the limitation of the prior art is solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge reinforcement construction technical field, concretely relates to a narrow space large support transfer trolley. BACKGROUND

[0002] In bridge engineering, large support is an important component of bearing and transferring bridge structure load, with the extension of service time and the change of environment and load condition, the support can be damaged due to various reasons (such as fatigue, corrosion, settlement etc.), leading to the decline of bridge function and safety, therefore, regular inspection and timely replacement of the damaged support is a crucial part in bridge maintenance management, the damage of support directly affects the bearing capacity and service life of bridge, timely replacement of damaged support can effectively prolong the service life of bridge, guarantee the safety and stability of bridge.

[0003] As an important component of bridge structure, support plays the role of bearing bridge load, providing support and relieving deformation caused by temperature change, settlement etc., however, in the narrow space or complex bridge structure environment, support replacement faces many challenges, the lack of operation space limits the activity range of construction personnel and the arrangement of equipment, which makes the efficiency of replacement operation greatly discounted, and the site restriction often increases the difficulty of construction equipment access. UTILITARIAN CONTENT

[0004] The utility model aims at providing a narrow space large support transfer trolley to solve the problem of multiple challenges such as lack of operation space, site restriction and load control in the narrow space or complex bridge structure environment.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A narrow space large support transfer trolley, comprising:

[0007] Horizontal reinforcing rib;

[0008] Longitudinal reinforcing rib, the longitudinal reinforcing rib is fixedly connected to the outside of the horizontal reinforcing rib, and the horizontal reinforcing rib and the longitudinal reinforcing rib constitute a trolley framework;

[0009] Top flat steel plate, the top flat steel plate is arranged at the top end of the longitudinal reinforcing rib, and the bottom end of the top flat steel plate is fixedly connected with a bottom reinforcing steel plate.

[0010] Preferably, the bottom end of the bottom reinforcing steel plate is provided with a bottom universal wheel, the outside of the bottom reinforcing steel plate is provided with a plurality of anchor bolts, and the top end of the top flat steel plate is provided with a plurality of steel ball universal wheels.

[0011] Preferably, the four surrounding side walls of the trolley framework formed by the transverse reinforcing ribs and the longitudinal reinforcing ribs are welded with limiting pins, the four surrounding side walls of the trolley framework are welded with traction rings, and the top ends of the steel ball universal wheels are arranged with the to-be-transported support.

[0012] Preferably, the bottom universal wheels are arranged at the bottom ends of the bottom reinforcing steel plates, the bottom universal wheels are arranged at the four surrounding corners of the bottom reinforcing steel plates, the steel ball universal wheels are arranged on the outer sides of the top surface flat steel plates, and the bottom universal wheels are fixedly arranged at the bottom ends of the bottom reinforcing steel plates by the anchor bolts.

[0013] Preferably, the to-be-transported support is arranged on the outer side of the top surface flat steel plate, and the limiting pins are arranged on the four surrounding side walls of the trolley framework formed by the transverse reinforcing ribs and the longitudinal reinforcing ribs to prevent the to-be-transported support from sliding off the trolley.

[0014] Compared with the prior art, the trolley has the beneficial effects that:

[0015] The bottom universal wheels, the anchor bolts, the steel ball universal wheels and the limiting pins are arranged, the top surface flat steel plate is supported on the trolley framework structure, the bottom universal wheels are anchored together with the framework structure by the anchor bolts, the height of the trolley is adjusted by the anchor bolts, the trolley is adjusted to be in a horizontal state, the stress of the bottom universal wheels is uniform, the limiting pins are welded on the four surrounding sides of the trolley, the limiting pins are composed of L-shaped pins and bottom steel sleeves, the bottom steel sleeves are welded on the four surrounding sides of the trolley, the pins can be taken out of the steel sleeves as needed, the height of the hook of the pin is higher than the bottom plate of the to-be-transported support, the support is prevented from sliding off the trolley, the old support is dragged from the support cushion stone to the trolley for transportation, the new support is transported to the cushion stone by the trolley, the trolley can be flexibly operated in a complex environment, the transportation efficiency is improved, the time required for replacing the support is shortened, the labor intensity of personnel is reduced, and the limitation of the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural front view schematic diagram of the trolley.

[0017] Fig. 2 It is a structural front view schematic diagram of the trolley.

[0018] In the drawings: 1, transverse reinforcing rib; 2, longitudinal reinforcing rib; 3, top surface flat steel plate; 4, bottom reinforcing steel plate; 5, bottom universal wheel; 6, anchor bolt; 7, steel ball universal wheel; 8, limiting pin; 9, traction ring; 10, to-be-transported support. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] Embodiment one:

[0021] Please refer to Figs. 1-2 As shown in FIG. 1, a large support transfer trolley in a narrow space comprises:

[0022] A horizontal reinforcing rib 1;

[0023] A vertical reinforcing rib 2 is fixedly connected to the outside of the horizontal reinforcing rib 1, and the horizontal reinforcing rib and the vertical reinforcing rib form a trolley framework;

[0024] A top flat steel plate 3 is arranged at the top end of the vertical reinforcing rib 2, the bottom end of the top flat steel plate 3 is fixedly connected with a bottom reinforcing steel plate 4, the bottom end of the bottom reinforcing steel plate 4 is provided with a plurality of bottom universal wheels 5, the outside of the bottom reinforcing steel plate 4 is provided with a plurality of anchor bolts 6, the top end of the top flat steel plate 3 is provided with a plurality of steel ball universal wheels 7, the four walls of the trolley framework formed by the horizontal reinforcing rib 1 and the vertical reinforcing rib 2 are welded with a limiting bolt 8, the four walls of the trolley framework are welded with a traction ring 9, the top end of the steel ball universal wheel 7 is placed with a support to be transferred 10, a plurality of bottom universal wheels 5 are arranged at the bottom end of the bottom reinforcing steel plate 4, and the bottom universal wheels 5 are arranged at the four corners of the bottom reinforcing steel plate 4, a plurality of steel ball universal wheels 7 are evenly arranged on the outside of the top flat steel plate 3, the bottom universal wheels 5 are fixedly installed at the bottom end of the bottom reinforcing steel plate 4 through the anchor bolts 6, the support to be transferred 10 is placed outside the top flat steel plate 3, the limiting bolt 8 is arranged on the four walls of the trolley framework formed by the horizontal reinforcing rib 1 and the vertical reinforcing rib 2 to prevent the support to be transferred 10 from falling off the trolley.

[0025] Specifically, the limiting bolt 8 is welded on the four walls of the trolley body, the limiting bolt 8 is composed of an L-shaped bolt and a bottom steel sleeve, the bottom steel sleeve is welded on the four walls of the trolley body, the bolt can be taken out of the steel sleeve as needed, the height of the hook of the bolt needs to be higher than the bottom plate of the support to be transferred 10, so as to prevent the support from falling off the trolley, a plurality of steel ball universal wheels 7 are welded or anchored on the top flat steel plate 3, the steel ball can rotate 360 degrees, the number and position of the steel ball universal wheels 7 can be increased or decreased according to actual needs, and the weight of the support is evenly transmitted to the framework structure through the plurality of steel ball universal wheels 7.

[0026] From the above, when the old to-be-transported support 10 is dragged from the support cushion stone to the trolley, the trolley is first pulled to the vicinity of the cushion stone, the anchoring bolt 6 of the bottom universal wheel 5 is adjusted to make the height of the trolley slightly lower than that of the cushion stone, then the bottom universal wheel 5 is braked to ensure that the trolley will not slide, the limiting pin 8 on the side of the cushion stone is removed, the old to-be-transported support 10 is dragged to the trolley, finally the limiting pin 8 is put into the steel sleeve to prevent the to-be-transported support 10 from falling off during the transportation, then the brake of the bottom universal wheel 5 is cancelled, the trolley is dragged to the designated position through the traction equipment, and the to-be-transported support 10 is hoisted out.

[0027] When the new support is dragged from the trolley to the cushion stone, the height of the cushion stone is first measured, the anchoring bolt of the bottom universal wheel of the trolley is adjusted to make the height of the trolley slightly higher than that of the cushion stone, the limiting pin is first put into the steel sleeve, then the new support is hoisted and placed on the trolley, the trolley is dragged to the vicinity of the cushion stone through the traction equipment, the bottom universal wheel is braked, the limiting pin on the side of the cushion stone is removed, and the new support is dragged to the cushion stone.

[0028] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0029] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or welding connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0032] The present application discloses the embodiments in the drawings, only the structures involved in the embodiments of the present application, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other.

[0033] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features.

Claims

1. A large support transfer trolley for narrow spaces, characterized in that, Include: Transverse reinforcing ribs (1); Longitudinal reinforcing ribs (2) are fixedly connected outside the transverse reinforcing ribs (1), the transverse reinforcing ribs and longitudinal reinforcing ribs constitute a trolley framework; The top surface of the steel plate (3) is arranged at the top end of the longitudinal reinforcing rib (2), and the bottom end of the top surface of the steel plate (3) is fixedly connected with the bottom reinforcing steel plate (4).

2. The large support transfer trolley for narrow space according to claim 1, characterized in that: The bottom end of the bottom reinforcing steel plate (4) is provided with a plurality of bottom universal wheels (5), and the outer portion of the bottom reinforcing steel plate (4) is provided with a plurality of anchor bolts (6), and the top end of the top surface of the steel plate (3) is provided with a plurality of steel ball universal wheels (7).

3. The large support transfer trolley for a narrow space according to claim 2, characterized in that: The four side walls of the trolley framework composed of the transverse reinforcing ribs (1) and the longitudinal reinforcing ribs (2) are welded with a limiting bolt (8), the four side walls of the trolley framework are welded with a traction ring (9), and the top end of the steel ball universal wheel (7) is placed with a to-be-transported support (10).

4. The large support transfer trolley for narrow space according to claim 3, characterized in that: The bottom end of the bottom reinforcing steel plate (4) is provided with a plurality of bottom universal wheels (5), and the bottom universal wheels (5) are arranged at the four corner edges of the bottom reinforcing steel plate (4), a plurality of steel ball universal wheels (7) are evenly arranged on the outer portion of the top surface of the steel plate (3), and the bottom universal wheels (5) are fixedly installed on the bottom end of the bottom reinforcing steel plate (4) through the anchor bolts (6).

5. The large support transfer trolley for a narrow space according to claim 4, characterized in that: The to-be-transported support (10) is placed outside the top surface of the steel plate (3), the limiting bolt (8) is arranged on the four side walls of the trolley framework composed of the transverse reinforcing ribs (1) and the longitudinal reinforcing ribs (2), and the to-be-transported support (10) is prevented from falling off the trolley.