Business line prefabricated cover plate laying trolley device

Abstract

The utility model provides a business line prefabricated cover plate laying trolley device which comprises a wheel set, a main beam, a supporting frame, a sliding lifting ring mechanism and a lifting hook mechanism, the main beam is fixedly arranged on the wheel set through the supporting frame, the sliding lifting ring mechanism comprises a sliding way and at least one lifting ring, and the lifting hook mechanism is arranged on the sliding way. The sliding way is fixedly arranged on the main beam, the extending direction of the sliding way is the same as the length direction of the main beam, the lifting ring is assembled on the sliding way and is in sliding fit with the sliding way, and the lifting hook mechanism is hung on the lifting ring and can lift a prefabricated cover plate. The trolley device has the advantages that the trolley device is small in dead weight and light and convenient to move, the position of the prefabricated cover plate on the main beam can be adjusted through sliding fit of the sliding ways and the hanging rings, time and labor can be saved in the processes of hoisting the prefabricated cover plate, advancing, laying and the like, a plurality of prefabricated cover plates can be transported at the same time, needed labor is small, and construction efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of railway construction technology, specifically to a device for laying precast cover plates on operating railway lines. Background Technology

[0002] Laying precast cover slabs on operational railway lines carries certain safety risks. On the one hand, the installation of precast drainage ditches and cover slabs within railway fences, or the installation of precast cover slabs over railway bridges, is generally close to equipment such as trains, overhead contact lines, rails, and signal lights. In such highly dangerous and complex construction environments, tall cranes are not permitted to operate near railway lines. On the other hand, a precast cover slab weighs around 150 kg, which cannot be moved manually. Even if multiple people can lift it, workers quickly become fatigued under the high intensity of physical labor, resulting in extremely high construction safety risks and very low construction efficiency.

[0003] Therefore, how to safely and efficiently carry out the prefabricated cover plate laying operation of the operating line is a problem that the industry urgently needs to solve. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the prior art by providing a precast cover plate laying trolley device for operating lines. By setting a slide rail and at least one lifting ring on the main beam, the position of the precast cover plate on the main beam can be adjusted through the sliding cooperation between the slide rail and the lifting ring. This saves time and labor during the lifting, movement, and laying of the precast cover plate, and can transport multiple precast cover plates at the same time, requiring less manpower and greatly improving construction efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A trolley device for laying precast cover plates on a production line is disclosed. The trolley device includes a wheel set, a main beam, a support frame, a sliding lifting ring mechanism, and a hook mechanism. The main beam is fixedly mounted on the wheel set via the support frame. The sliding lifting ring mechanism includes a slide rail and at least one lifting ring. The slide rail is fixedly mounted on the main beam, and the extension direction of the slide rail is the same as the length direction of the main beam. The lifting ring is assembled on the slide rail and is in sliding engagement with the slide rail. The hook mechanism is hung on the lifting ring and can lift precast cover plates.

[0007] The wheel assembly includes an axle and wheels located at both ends of the axle. The support frame includes a transverse support frame, which includes a vertical rod and two transverse diagonal braces. One end of the vertical rod is fixed to the midpoint of the axle, and the other end of the vertical rod is fixed to the main beam. The two transverse diagonal braces are respectively arranged diagonally on both sides of the vertical rod, and one end of each transverse diagonal brace is fixedly connected to the fixing point of the vertical rod and the main beam, and the other end is fixedly connected to the axle. The two transverse diagonal braces and the axle form a triangle.

[0008] The support frame also includes a longitudinal support frame, which includes two longitudinal diagonal braces. The two longitudinal diagonal braces are respectively obliquely arranged on both sides of the vertical rod, and one end of each longitudinal diagonal brace is fixedly connected to the fixing point of the vertical rod and the axle, and the other end is fixedly connected to the main beam. The two longitudinal diagonal braces and the main beam form a triangle.

[0009] The fixing point between the vertical rod and the main beam divides the main beam into a first segment and a second segment in the length direction. The length of the first segment is longer than the length of the second segment. The sliding ring mechanism and the hook mechanism are disposed on the second segment.

[0010] The sliding ring mechanism also includes two fixed limiting shafts, which are respectively disposed at both ends of the slide rail, and the movement range of the ring is restricted between the two fixed limiting shafts.

[0011] The sliding ring mechanism also includes several clamps, which are clamped on the slide rail to hold the ring at any position on the slide rail.

[0012] The hook mechanism includes a shackle, a hook, and a safety device. The shackle is attached to the lifting ring, the hook is attached to the shackle, and the safety device is installed on the hook to prevent the precast cover plate from detaching from the hook when it is being lifted.

[0013] The trolley device also includes a pusher and a traction rope. The pusher is located at the end of the main beam away from the sliding ring mechanism, and one end of the traction rope is tied to the end of the main beam away from the sliding ring mechanism.

[0014] One end of the slide extends to the end of the second section of the main beam.

[0015] The slide rail is welded and fixed to the bottom of the main beam. The slide rail has a convex-shaped structure, and the lifting ring has a concave-shaped structure that matches the convex-shaped structure.

[0016] The advantages of this utility model are: (1) The entire trolley device is lightweight and easy to move, saving time and effort for operators; (2) It avoids the crane from operating near the railway; (3) A trolley device can transport multiple precast cover plates at the same time, and generally two operators can push the trolley forward, which greatly improves construction efficiency compared to manual lifting; (4) By moving and fixing the position of the precast cover plate on the main beam, the lever principle is achieved, further saving effort for operators when the trolley lifts, moves, and lays the cover plate. Attached Figure Description

[0017] Figure 1This is a longitudinal cross-sectional schematic diagram of the trolley device in this utility model;

[0018] Figure 2 This is a top view of the trolley device in this utility model;

[0019] Figure 3 This is a schematic diagram of the trolley device of this utility model moving on a ditch;

[0020] Figure 4 This is a schematic diagram of the sliding ring mechanism and the hook mechanism in this utility model;

[0021] Figure 5 This is a schematic diagram showing the cooperation between the slide and the lifting ring in this utility model;

[0022] Figure 6 This is a schematic diagram showing the position of the fixed limiting shaft in this utility model;

[0023] Figure 7 This is a schematic diagram of the clamp structure in this utility model. Detailed Implementation

[0024] The features of this utility model and other related features will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0025] like Figure 1-7 As shown in the figure, the markings represent: wheel 11, axle 12, longitudinal support frame 2, transverse support frame 3, main beam 4, assist pusher 5, traction rope 6, prefabricated cover plate 7, sliding lifting ring mechanism 8, slide rail 81, fixed limit shaft 82, lifting ring 83, clamp 84, hook mechanism 9, shackle 91, hook 92, safety device 93, and ditch 10.

[0026] Example: Figure 1-7 As shown, this embodiment relates to a precast cover plate laying trolley device for a business line, used for hoisting, moving, and laying precast cover plates 7 on a business line. Specifically, it lays the precast cover plates 7 above a ditch 10 or above a box girder. The trolley device includes a wheel set, a main beam 4, a support frame, a sliding lifting ring mechanism 8, and a hook mechanism 9. The main beam 4 is fixedly mounted on the wheel set by the support frame. The sliding lifting ring mechanism 8 includes a slide rail 81 and at least one lifting ring 83. The slide rail 81 is fixedly mounted on the main beam 4, and the extension direction of the slide rail 81 is the same as the length direction of the main beam 4. The lifting ring 83 is assembled on the slide rail 81 and slides with the slide rail 81. The hook mechanism 9 is hung on the lifting ring 83 and can hoist the precast cover plates 7.

[0027] In this embodiment, the length of the slide rail 81 can be set to be relatively long, so that multiple lifting rings 83 can be set on the slide rail 81 at the same time. Each lifting ring 83 can lift a prefabricated cover plate 7 at the same time, so that multiple prefabricated cover plates 7 can be lifted at the same time using the trolley device, thereby improving construction efficiency.

[0028] In this embodiment, after the precast cover plate 7 is lifted by the hook mechanism 9, the lifting ring 83 can be moved by lever principle to slide the precast cover plate 7 to one end of the slide rail 81 near the axle 12, thereby achieving the effect of saving effort during the movement of the trolley device. When the precast cover plate 7 is laid, the front end of the main beam 4 is tilted downward, so that the precast cover plate 7 can be slid to the front end of the main beam 4 through the slide rail 81 to facilitate the laying of the precast cover plate 7.

[0029] Therefore, the trolley device in this embodiment has a small self-weight and is easy to move. The position of the precast cover plate 7 on the main beam 4 can be adjusted by the sliding cooperation between the slide rail 81 and the lifting ring 83. By utilizing the lever principle, time and effort can be saved in the process of lifting the precast cover plate 7, moving and laying it. Multiple precast cover plates 7 can be transported at the same time. Only two operators are needed to carry out the construction, which greatly improves the construction efficiency.

[0030] In some embodiments of this utility model, the main beam 4 can be made of steel pipe or steel section of a certain diameter, as long as its structural strength can support and lift at least one prefabricated cover plate 7.

[0031] In some embodiments of this utility model, the wheel assembly includes an axle 12 and wheels 11 located at both ends of the axle 12. The support frame includes a transverse support frame 3. Specifically, the transverse support frame 3 includes a vertical rod and two transverse diagonal braces. One end of the vertical rod is fixed to the midpoint of the axle 12, and the other end is fixed to the main beam 4, i.e., it is supported and fixed to the bottom of the main beam 4. The two transverse diagonal braces are respectively arranged diagonally on both sides of the vertical rod. One end of each transverse diagonal brace is fixedly connected to the fixing point of the vertical rod and the main beam 4, and the other end of the transverse diagonal brace is fixedly connected to the axle 12. The two transverse diagonal braces and the axle 12 form a triangle. Thus, through the supporting effect of the transverse support frame 3, the main beam 4 can be firmly fixed to the wheel assembly, and the main beam 4 can move with the wheel assembly to realize the driving function.

[0032] In some embodiments of this utility model, the support frame further includes a longitudinal support frame 2. Specifically, the longitudinal support frame 2 includes two longitudinal diagonal braces, which are respectively arranged obliquely on both sides of the vertical rod. One end of each longitudinal diagonal brace is fixedly connected to the fixing point of the vertical rod and the axle 12, and the other end of the longitudinal diagonal brace is fixedly connected to the main beam 4. The two longitudinal diagonal braces and the main beam 4 form a triangle. Thus, the support of the longitudinal support frame 2 can further strengthen the fixing strength between the main beam 4 and the wheel set, so that the main beam 4 can simultaneously lift multiple prefabricated cover plates 7.

[0033] Optionally, the support frame can also be made of steel pipes or structural steel of a certain specification. Thus, the weight of the trolley device comes mainly from the main beam 4 and the support frame, making the trolley extremely lightweight, saving manpower and making it easy to operate.

[0034] In some embodiments, the fixing point between the vertical rod and the main beam 4 divides the main beam 4 into two segments along its length, namely the first segment and the second segment. The first segment is longer than the second segment, and the sliding lifting ring mechanism 8 and the hook mechanism 9 are disposed on the second segment. Thus, according to the lever principle, when the operator applies force at the end of the first segment, since the first segment is longer than the second segment, manpower can be effectively saved.

[0035] In other embodiments, one end of the slide 81 extends to the end of the second section of the main beam 4. Thus, when it is necessary to lower and lay the precast cover plate 7, by tilting the front end of the main beam 4 downward, the lifting ring 83 slides to the end of the second section, and the precast cover plate 7 also slides to the front end of the main beam 4, thereby facilitating the unloading and laying of the precast cover plate 7.

[0036] In some embodiments of this utility model, the sliding lifting ring mechanism 8 further includes two fixed limiting shafts 82, which are respectively disposed at both ends of the slide rail 81. Thus, the movement range of the lifting ring 83 is restricted between the two fixed limiting shafts 82, which can avoid the safety hazard of the lifting ring 83 sliding out of the slide rail 81 and the main beam 4 due to the gravity caused by the inclination of the main beam 4 during hoisting, advancing and laying of the trolley device, and ensure the safety of the construction process.

[0037] In some other embodiments of this utility model, the sliding ring mechanism 8 further includes a plurality of clamps 84, which are clamped on the slide rail 81 to hold the ring 83 at any position on the slide rail 81. That is to say, the clamps 84 are actually manual limiting devices. By clamping the ring 83 on both sides, the ring 83 can be held at any position on the slide rail 81, thereby preventing the ring 83 and the prefabricated cover plate 7 being lifted from sliding off the main beam 4, which, together with the aforementioned fixed limiting shaft 82, provides a double insurance function.

[0038] In some embodiments, the hook mechanism 9 includes a shackle 91, a hook 92, and a safety device 93. The shackle 91 is attached to the lifting ring 83, and the hook 92 is attached to the shackle 91. The safety device 93 is located on the hook 92 to prevent the precast cover plate 7 from detaching from the hook 92 during hoisting. Thus, the shackle 91 protects the lifting ring 83 and the hook 92, preventing excessive wear between them; while the safety device 93 seals the notch on the hook 92 to prevent the precast cover plate 7 from detaching from the hook 92 during hoisting, movement, and laying of the precast cover plate 7 by the trolley device, thereby further ensuring construction safety. Optionally, the type of safety device can be a mechanical safety device, such as a spring cover, i.e., a spring cover is installed at the opening of the hook 92, which can only be pressed down and automatically resets after the sling is inserted, closing the opening of the hook 92 to prevent the sling from slipping; it can also be a baffle or locking pin, etc., which uses a mechanical structure (such as a baffle or locking pin) to prevent the sling from falling off. Usually, it requires an operator or an automatic system to unlock it. This embodiment does not make a specific limitation.

[0039] In other embodiments, the trolley device further includes a pusher 5 and a traction rope 6. The pusher 5 is located at the end of the main beam 4 away from the sliding lifting ring mechanism 8, and one end of the traction rope 6 is also tied to the end of the main beam 4 away from the sliding lifting ring mechanism 8. That is, both the pusher 5 and the traction rope 6 are located at the end of the first section of the main beam 4. By setting the pusher 5, after the precast cover plate 7 is hoisted, the operator can use the pusher 5 to push the trolley forward and adjust its direction of travel. After the precast cover plate 7 is moved into place, the front end of the trolley device is lowered, that is, one end of the main beam 4 is lowered, thus lowering the precast cover plate 7. At this time, the end of the trolley device will tilt upward, that is, the other end of the main beam 4 will rise. After the precast cover plate 7 is unloaded, the operator can pull the tilted main beam 4 down by hand by pulling the traction rope 6 until the main beam 4 returns to a near-horizontal position. Then the operator can pull away the trolley device, thereby avoiding the main beam 4 rising too high and causing the operator to not be able to reach the tilted end of the main beam 4.

[0040] In some embodiments of this utility model, the slide rail 81 is welded and fixed to the bottom of the main beam 4. Specifically, the slide rail 81 has a convex-shaped structure, while the lifting ring 83 has a concave-shaped structure that matches the convex-shaped structure. The relative movement of the two is achieved by the convex-concave fit between the slide rail 81 and the lifting ring 83. Optionally, the lifting ring 83 can be made of cast iron, steel, or other materials.

[0041] The method of using the trolley device of this utility model is as follows:

[0042] First, adjust the position of the trolley device using the pusher 5 so that the hook mechanism 9 at the front end of the main beam 4 of the trolley device is directly above the precast cover plate 7 to be lifted. Then, lower the end of the main beam 4 with the hook mechanism 9 and use the hook mechanism 9 to hook the precast cover plate 7. Next, move the lifting ring 83 to slide the precast cover plate 7 to the end of the slide rail 81 near the axle 12, thus achieving a labor-saving effect during the movement of the trolley device. To prevent the precast cover plate 7 from sliding, clamps 84 can be used to clamp the lifting ring 83, locking its position. At this point, the operator can... The precast cover plate 7 is moved to the laying position by pushing the trolley device with the pusher 5. After the precast cover plate 7 is moved to the laying position, the clamp 84 is removed, the front end of the main beam 4 is tilted downward, and the precast cover plate 7 is slowly slid to the front end of the main beam 4 through the slide 81 by gravity to facilitate the laying of the precast cover plate 7. After the precast cover plate 7 is unloaded, since the end opposite to the front end of the main beam 4 is raised, the operator can pull the main beam 4 down to a position close to the horizontal by pulling the traction rope 6, and then pull back the trolley device to repeat the process of moving the precast cover plate 7 for the next time.

[0043] In summary, the beneficial effects of this utility model are: (1) The entire trolley device is lightweight and easy to move, saving time and effort for operators; (2) It avoids the need for cranes to operate near railways; (3) A trolley device can transport multiple precast cover plates at the same time, and generally two operators can push the trolley forward, which greatly improves construction efficiency compared to manual lifting; (4) By moving and fixing the position of the precast cover plates on the main beam, the lever principle is achieved, further saving effort for operators when the trolley lifts, moves, and lays the cover plates; (5) The hook is equipped with a shackle and a safety device to ensure that the hook is not worn and that the precast cover plates do not come off the hook during the movement of the trolley device and the laying of the precast cover plates, thus ensuring the safety of construction.

[0044] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “connected” or “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, which change accordingly when the absolute position of the described object changes.

[0045] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A device for laying prefabricated cover plates on a production line, characterized in that, The trolley device includes a wheel set, a main beam, a support frame, a sliding ring mechanism, and a hook mechanism. The main beam is fixedly mounted on the wheel set via the support frame. The sliding ring mechanism includes a slide rail and at least one ring. The slide rail is fixedly mounted on the main beam, and the extension direction of the slide rail is the same as the length direction of the main beam. The ring is mounted on the slide rail and is in sliding engagement with the slide rail. The hook mechanism is hung on the ring and can lift prefabricated cover plates.

2. The trolley device according to claim 1, characterized in that, The wheel assembly includes an axle and wheels located at both ends of the axle. The support frame includes a transverse support frame, which includes a vertical rod and two transverse diagonal braces. One end of the vertical rod is fixed to the midpoint of the axle, and the other end of the vertical rod is fixed to the main beam. The two transverse diagonal braces are respectively arranged diagonally on both sides of the vertical rod, and one end of each transverse diagonal brace is fixedly connected to the fixing point of the vertical rod and the main beam, and the other end is fixedly connected to the axle. The two transverse diagonal braces and the axle form a triangle.

3. The trolley device according to claim 2, characterized in that, The support frame also includes a longitudinal support frame, which includes two longitudinal diagonal braces. The two longitudinal diagonal braces are respectively obliquely arranged on both sides of the vertical rod, and one end of each longitudinal diagonal brace is fixedly connected to the fixing point of the vertical rod and the axle, and the other end is fixedly connected to the main beam. The two longitudinal diagonal braces and the main beam form a triangle.

4. The trolley device according to claim 2, characterized in that, The fixing point between the vertical rod and the main beam divides the main beam into a first segment and a second segment in the length direction. The length of the first segment is longer than the length of the second segment. The sliding ring mechanism and the hook mechanism are disposed on the second segment.

5. The trolley device according to claim 1, characterized in that, The sliding ring mechanism also includes two fixed limiting shafts, which are respectively disposed at both ends of the slide rail, and the movement range of the ring is restricted between the two fixed limiting shafts.

6. The trolley device according to claim 1, characterized in that, The sliding ring mechanism also includes several clamps, which are clamped on the slide rail to hold the ring at any position on the slide rail.

7. The trolley device according to claim 1, characterized in that, The hook mechanism includes a shackle, a hook, and a safety device. The shackle is attached to the lifting ring, the hook is attached to the shackle, and the safety device is installed on the hook to prevent the precast cover plate from detaching from the hook when it is being lifted.

8. The trolley device according to claim 1, characterized in that, The trolley device also includes a pusher and a traction rope. The pusher is located at the end of the main beam away from the sliding ring mechanism, and one end of the traction rope is tied to the end of the main beam away from the sliding ring mechanism.

9. The trolley device according to claim 4, characterized in that, One end of the slide extends to the end of the second section of the main beam.

10. The trolley device according to claim 1, characterized in that, The slide rail is welded and fixed to the bottom of the main beam. The slide rail has a convex-shaped structure, and the lifting ring has a concave-shaped structure that matches the convex-shaped structure.

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