Unloading device

Abstract

The utility model discloses an unloading device, which is different from the design that a first inclined guide part and a second inclined guide part are only inclined planes in the prior art, a convex structure is arranged on the first inclined guide part of the unloading device, and a concave structure matched with the convex structure is arranged on the second inclined guide part. According to the design, on the basis that the sliding guide function is not affected, the relative displacement of the first unloading block and the second unloading block in the transverse direction is effectively limited through close fit of the protrusions and the recesses. Although the convex and concave structures are added, the unloading device ensures that the sliding fit between the first inclined guide part and the second inclined guide part is still smooth. Due to the introduction of the convex structures and the concave structures, not only is the structural stability of the unloading device when the unloading device bears a load enhanced, but also additional stress generated by transverse displacement is reduced, so that the service life of the unloading device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, in particular to an unloading device. BACKGROUND

[0002] The unloading device (also called unloading block or unloading piece) is a key temporary support component in bridge construction and maintenance, which bears the transmission and dispersion of multiple gravity such as bridge dead weight, vehicle and wind load, and ensures the stability and deformation control of bridge structure under various working conditions. Especially in the demolition, maintenance and reinforcement stage of the bridge, the device can support the weight of the beam body, facilitate the removal of old support and the accurate installation of new support.

[0003] However, the unloading device shown in the prior art such as publication number CN221740933U adjusts the distance between the two second unloading blocks through the nut and screw rod, and then adjusts the height of the two first unloading blocks to realize the supporting function, but its lateral stability is insufficient. Specifically, the first unloading block limits the first unloading block from separating from the second unloading block in the lateral direction through the limiting plate on its side, but there is a gap between the second unloading block and the limiting plate, which causes the relative displacement between the two in the lateral direction, affecting the stability of the overall structure and increasing the risk that the first unloading block may face when bearing. SUMMARY

[0004] Therefore, the utility model provides an unloading device, which aims to solve the problem of insufficient position stability between the first unloading block and the second unloading block in the existing unloading device.

[0005] The scheme provided by the utility model comprises:

[0006] An unloading device comprises:

[0007] Two first unloading blocks symmetrically arranged above and below, wherein the first unloading blocks are provided with two first inclined guide portions symmetrically arranged in the horizontal direction, and the first inclined guide portions are provided with protruding structures along the inclined direction thereof;

[0008] Two second unloading blocks symmetrically arranged horizontally, wherein the second unloading blocks are provided with two second inclined guide portions symmetrically arranged above and below, and the second inclined guide portions are provided with recessed structures along the inclined direction thereof; the outer wall profile of the second inclined guide portion corresponds to the outer wall profile of the first inclined guide portion, and the second inclined guide portion and the first inclined guide portion slide against each other;

[0009] A horizontal limiting mechanism, which comprises a first screw rod transversing the two second unloading blocks and two first nuts threadedly connected to the first screw rod, and the two first nuts are used to block the two second unloading blocks from moving away from each other.

[0010] As a further optional solution, the first inclined guide part comprises two first inclined surfaces, which are arranged to be inclined in a first direction and in a second direction, the first direction and the second direction being two perpendicular directions in a horizontal plane, and the two first inclined surfaces are connected to each other and form the convex structure;

[0011] The second inclined guide part comprises two second inclined surfaces, which are arranged to be inclined in a first direction and in a second direction, and the two second inclined surfaces are connected to each other and form the concave structure.

[0012] As a further optional solution, the two first inclined surfaces are symmetrically arranged in a horizontal direction, and the two second inclined surfaces are symmetrically arranged in the horizontal direction.

[0013] As a further optional solution, a vertical limiting mechanism is further included, and the vertical limiting mechanism comprises a second screw rod and two second nuts which are threadedly connected to the second screw rod.

[0014] The first unloading block is provided with a mounting plate on the outer side, and a mounting hole vertically penetrating through the mounting plate is formed in the mounting plate.

[0015] The second screw rod vertically penetrates through the mounting holes of the two first unloading blocks, and the two second nuts are used to block the two first unloading blocks from moving away from each other.

[0016] As a further optional solution, the horizontal limiting mechanism and the vertical limiting mechanism are each provided with two groups.

[0017] As a further optional solution, the first unloading block and the second unloading block are both metal cast blocks with a hollow structure, and the first unloading block and the second unloading block are each provided with longitudinally and transversely intersecting rib plates.

[0018] A spacer plate is arranged between the first nut and the second unloading block.

[0019] Compared with the prior art, the unloading device of the present application has at least the following beneficial effects:

[0020] Unlike the prior art, the first inclined guide portion and the second inclined guide portion are not only inclined planes, but the unloading device of the present application is provided with a protruding structure on the first inclined guide portion and a matching recessed structure on the second inclined guide portion. This design effectively limits the relative displacement of the first unloading block and the second unloading block in the transverse direction without affecting the sliding guide function through the close cooperation of the protrusions and recesses. Although the protrusions and recesses are added, the unloading device of the present application ensures that the sliding cooperation between the first inclined guide portion and the second inclined guide portion is still smooth. The introduction of the protruding structure and the recessed structure not only enhances the structural stability of the unloading device when bearing the load, but also reduces the additional stress caused by transverse displacement, thereby prolonging the service life of the unloading device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of an unloading device according to an embodiment of the present application;

[0022] Figure 2 is an exploded schematic view of an unloading device according to an embodiment of the present application;

[0023] Figure 3 is a structural schematic view of a first inclined guide portion and a second inclined guide portion according to an embodiment of the present application;

[0024] Figure 4 is a side view schematic view of an unloading device according to an embodiment of the present application;

[0025] Figure 5 is Figure 4 a sectional view of A-A in FIG.

[0026] In the figure: 1, first unloading block; 11, first inclined guide portion; 111, first inclined surface; 12, mounting plate; 121, mounting hole;

[0027] 2, second unloading block; 21, second inclined guide portion; 211, second inclined surface;

[0028] 3, horizontal limiting mechanism; 31, first screw; 32, first nut;

[0029] 4, vertical limiting mechanism; 41, second screw; 42, second nut;

[0030] 5, backing plate;

[0031] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0032] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact 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.

[0036] Reference Figures 1-5The utility model discloses an embodiment shows a kind of unloading device, including two first unloading blocks 1 being symmetrically arranged upper and lower, two second unloading blocks 2 being symmetrically arranged horizontally and horizontal limiting mechanism 3, first unloading block 1 is provided with two first inclined guide portions 11 being symmetrically arranged in horizontal direction, and the first inclined guide portion 11 is provided with protruding structure along its inclined direction;Second unloading block 2 is provided with two second inclined guide portions 21 being symmetrically arranged upper and lower, and the second inclined guide portion 21 is provided with recess structure along its inclined direction;The outer wall profile of the second inclined guide portion 21 corresponds with the outer wall profile of the first inclined guide portion 11, and the second inclined guide portion 21 and the first inclined guide portion 11 slide and abut;Horizontal limiting mechanism 3 includes the first screw rod 31 of traversing two second unloading blocks 2 and two first nuts 32 being threadedly connected on the first screw rod 31, and two first nuts 32 are used to block two second unloading blocks 2 from moving away from each other.

[0037] Specifically, two second unloading blocks 2 are symmetrically arranged in the first direction X, and the first direction X is a horizontal direction;The first inclined guide portion 11 and the second inclined guide portion 21 are inclined in the first direction X, and by adjusting the position of the two first nuts 32 on the first screw rod 31, the interval distance of the two second unloading blocks 2 in the first direction X is adjusted, so that the height distance between the two first unloading blocks 1 can be adjusted;Wherein, the protruding structure is arranged on the first inclined guide portion 11, and the recess structure is arranged on the second inclined guide portion 21, the purpose is to prevent the relative displacement of the first unloading block 1 and the second unloading block 2 in the second direction Y, and the second direction Y is a horizontal direction, and the second direction Y is perpendicular to the first direction X;The protruding structure of the first inclined guide portion 11 is clamped in the recess structure of the second inclined guide portion 21, and when the first unloading block 1 located above bears load, the first unloading block 1 can be prevented from moving relative to the second unloading block in the second direction Y.

[0038] Wherein, the protruding structure can be a convex strip, and the recess structure can be a corresponding groove.

[0039] In some embodiments, as shown in Figures 3-5 The first inclined guide portion 11 includes two first inclined surfaces 111, which are inclined in the first direction X and the second direction Y, and the two first inclined surfaces 111 are connected and form the protruding structure;Wherein, it can be understood that the two first inclined surfaces 111 are arranged in V shape;

[0040] The second inclined guide part 21 comprises two second inclined surfaces 211, which are arranged to be inclined in the first direction X and in the second direction Y, and are connected to each other to form the concave structure. It can be understood that the two second inclined surfaces 211 are arranged in a V shape.

[0041] Specifically, when the load borne by the first unloading block 1 located above is a non-vertical downward load, that is, the load exerts a transverse component force on the first unloading block 1, the second inclined surface 211 can block the transverse movement of the first inclined surface 111 in the second direction Y; thus, the position of the first unloading block 1 can be ensured to be stable, so that the first unloading block 1 only moves vertically.

[0042] Specifically, the two first inclined surfaces 111 are symmetrically arranged in the horizontal direction, and the two second inclined surfaces 211 are symmetrically arranged in the horizontal direction.

[0043] In some embodiments, in order to further improve the position stability of the first unloading block 1, as shown in Figure 1 Figure 2 and Figure 4 , a vertical limiting mechanism 4 is further included, which comprises a second screw rod 41 and two second nuts 42 threadedly connected to the second screw rod 41; the outer side of the first unloading block 1 is provided with a mounting plate 12, and a vertical mounting hole 121 is formed in the mounting plate 12; the second screw rod 41 vertically penetrates the mounting holes 121 of the two first unloading blocks 1, and the two second nuts 42 are used to block the mutual movement of the two first unloading blocks 1 away from each other.

[0044] The movement path of the first unloading block 1 located above can be limited by the second screw rod 41, so that the first unloading block 1 can only move along the axial direction of the second screw rod 41; when the distance between the two first unloading blocks 1 becomes larger, until the second nut 42 abuts against the mounting plate 12, which means that the distance between the two first unloading blocks 1 is maximum; of course, in the present embodiment, the maximum distance between the two first unloading blocks 1 can be adjusted by adjusting the position of the second nut 42 on the second screw rod 41.

[0045] In order to ensure the stability of the structure, the horizontal limiting mechanism 3 and the vertical limiting mechanism 4 are each provided with two groups.

[0046] In theory, the first unloading block 1 and the second unloading block 2 can be solid metal pieces, but in order to avoid material waste, in the present embodiment, the first unloading block 1 and the second unloading block 2 are metal cast blocks with a hollow structure, and longitudinal and transverse intersecting rib plates (not marked in the figure) are arranged in the first unloading block 1 and the second unloading block 2; in this way, the material cost can be reduced, and the first unloading block 1 and the second unloading block 2 can have sufficient structural strength.​

[0047] On this basis, in order to enable the first nut 32 to fully block the second unloading block 2, as shown in Figure 1 and Figure 2 The first nut 32 and the second unloading block 2 are provided with a backing plate 5. In this way, the first nut 32 abuts against the backing plate 5, and the backing plate 5 abuts against the rib plate on the second unloading block 2. The first nut 32 is pressed against the second unloading block 2 through the backing plate 5 in a large area, so that the stress is more stable.

[0048] In summary, the application provides an unloading device. Unlike the prior art, in which the first inclined guide part 11 and the second inclined guide part 21 are only designed as inclined planes, the unloading device of the application is provided with a protruding structure on the first inclined guide part 11 and a matching recessed structure on the second inclined guide part 21. This design effectively limits the relative displacement of the first unloading block 1 and the second unloading block 2 in the transverse direction without affecting the sliding guide function. Although the protruding and recessed structures are added, the unloading device of the application still ensures smooth sliding cooperation between the first inclined guide part 11 and the second inclined guide part 21. The introduction of the protruding structure and the recessed structure not only enhances the structural stability of the unloading device when bearing the load, but also reduces the additional stress caused by transverse displacement (i.e. displacement in the second direction Y), thereby prolonging the service life of the unloading device.

[0049] In the above embodiments, the description of each embodiment focuses on different aspects. The parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0050] The above description is only the preferred embodiment of the application. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the application, a number of improvements and substitutions can be made, which should also be considered as the protection scope of the application.

Claims

1. An unloading device, characterized in that, include: Two first unloading blocks are arranged symmetrically at the top and bottom. Each first unloading block is provided with two first inclined guide parts arranged symmetrically in the horizontal direction. The first inclined guide parts are provided with protruding structures along their inclined direction. Two horizontally symmetrically arranged second unloading blocks are provided. Each second unloading block is provided with two upper and lower symmetrically arranged second inclined guides. Each second inclined guide has a recessed structure along its inclined direction. The outer wall contour of the second inclined guide corresponds to the outer wall contour of the first inclined guide. The second inclined guide slides against the first inclined guide. A horizontal limiting mechanism includes a first screw that passes through two second unloading blocks and two first nuts that are threaded onto the first screw. The two first nuts are used to prevent the two second unloading blocks from moving away from each other.

2. The unloading device according to claim 1, characterized in that: The first inclined guide portion includes two first inclined surfaces. The first inclined surfaces are inclined in a first direction and in a second direction. The first direction and the second direction are two vertical directions on a horizontal plane. The two first inclined surfaces are connected to form the protruding structure. The second inclined guide portion includes two second inclined surfaces, which are inclined in a first direction and in a second direction, and the two second inclined surfaces are connected to form the recessed structure.

3. The unloading device according to claim 2, characterized in that: Two first inclined surfaces are symmetrically arranged in the horizontal direction, and two second inclined surfaces are symmetrically arranged in the horizontal direction.

4. The unloading device according to claim 2, characterized in that: It also includes a vertical limiting mechanism, which includes a second screw and two second nuts threadedly connected to the second screw; A mounting plate is provided on the outer side of the first unloading block, and a vertical through mounting hole is provided on the mounting plate; The second screw is vertically inserted into the mounting holes on the two first unloading blocks, and the two second nuts are used to prevent the two first unloading blocks from moving away from each other.

5. The unloading device according to claim 4, characterized in that: Two sets of the horizontal limiting mechanism and two sets of the vertical limiting mechanism are provided.

6. The unloading device according to claim 1, characterized in that: Both the first unloading block and the second unloading block are metal casting blocks with hollow structures, and both the first unloading block and the second unloading block are provided with crisscrossing ribs. A pad is provided between the first nut and the second unloading block.

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