A civil engineering construction support device

Abstract

The present invention relates to the field of civil construction technology, and in particular to a civil construction support device, the civil construction support device comprises a plurality of support plates, the plurality of support plates are arranged in groups of two, and the two support plates in the same group are parallel and spaced apart; a support mechanism is arranged between the two support plates in the same group, the support mechanism comprises a threaded sleeve, a pushing portion and two first elastic members, the two ends of the threaded sleeve are symmetrical and two pitch-adjusting screws are threadedly inserted, and the rotation directions of the thread structures on the two pitch-adjusting screws are opposite; two fixed seats are symmetrically and fixedly arranged on two plate surfaces close to each other of the two support plates in the same group, one end of the pitch-adjusting screw away from the threaded sleeve is hinged on the fixed seat, and the hinged end of the pitch-adjusting screw is connected to the fixed seat through the first elastic member, and the pushing portion is used to drive the two support plates in the same group to move away from each other when the threaded sleeve is gradually tilted, so as to compensate for the change in the spacing between the two support plates in the same group due to the change in relative height.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering construction, in particular to a civil engineering construction supporting device. Background Art

[0002] Civil construction is an important part of construction projects, involving the entire process from design to construction to maintenance.

[0003] Civil construction includes several key stages, such as construction preparation, earthwork construction, masonry engineering, reinforced concrete construction, etc. During the construction preparation stage, it is necessary to clean the site, formulate a construction plan, prepare materials and machinery, and build temporary facilities; during the earthwork construction stage, special attention should be paid to slope stability, drainage and precipitation, and the selection of backfill soil materials.

[0004] Foundation pit support is a commonly used technical means in civil construction. Its main purpose is to ensure the safety and stability of underground structure construction and the surrounding environment of the foundation pit, including the use of support, reinforcement and protection measures for the side walls of the foundation pit and the surrounding environment.

[0005] In the process of supporting the foundation pit, a supporting device is needed. In the related technology, for example, Chinese patent CN217629957U discloses a construction foundation pit anti-collapse supporting device. When the construction foundation pit anti-collapse supporting device is used, the guard plate is first inserted into the foundation pit through the positioning rod, and then the spacing between the two mounting blocks is adjusted according to the spacing between the guard plates. After the adjustment, the threaded rod is first driven to rotate through the connecting sleeve, and the threaded rod drives the mounting threaded block to move to both sides through the bolt connection. When the spacing between the mounting blocks reaches the appropriate position, the limit plate is aligned with the limit groove, and then the mounting block is inserted into the first mounting groove through the mounting thread block to support the guard plate. At the same time, the limit of the extension plate is released by rotating the positioning bolt, and then the extension plate is stretched. After the extension plate is stretched to the appropriate position, the positioning bolt is rotated again to limit the mounting box, and then the extension plate cooperates with the threaded rod to support the guard plate.

[0006] Although the above-mentioned construction pit anti-collapse support device can improve the stability of the foundation pit support to a certain extent, it is found in actual use that when the depth of the foundation pit changes, the guard plate needs to be pressed down. During the pressing process, in order to ensure that the guard plate is easier to embed into the soil, it is often pressed down from the top end of the guard plate, which makes the guard plate and its second supporting mechanism prone to deformation problems. Moreover, when the relative height between the guard plates on both sides changes, because the second supporting mechanism and the guard plates on both sides are hingedly connected, the distance between the guard plates on both sides will first decrease and then increase, which makes the guard plate prone to deflection, affecting the effect of foundation pit support. Summary of the invention

[0007] Based on this, it is necessary to provide a civil construction support device to address the problem of poor support effect in the current foundation pit support process.

[0008] The above purpose is achieved through the following technical solutions:

[0009] A civil engineering construction support device, the civil engineering construction support device comprises a plurality of support plates, the plurality of support plates are arranged in groups of two, the two support plates in the same group are arranged in parallel and at intervals, and the support plates in different groups are arranged in parallel along the vertical direction or the horizontal direction; a support mechanism is arranged between the two support plates in the same group, the support mechanism comprises a threaded sleeve, a pushing part and two first elastic members, the two ends of the threaded sleeve are symmetrical and two pitch-adjusting screws are threadedly inserted, and the thread structures on the two pitch-adjusting screws have opposite rotation directions; the two support plates in the same group are close to each other Two fixing seats are symmetrically and fixedly arranged on the two plate surfaces, one end of the pitch adjusting screw away from the threaded sleeve is hinged on the fixing seat, and the hinged end of the pitch adjusting screw is connected to the fixing seat through the first elastic member, and under the action of the first elastic member, the hinged end of the pitch adjusting screw can elastically slide along the plate direction perpendicular to the plate surface of the support plate; the pushing part is configured to drive the two support plates of the same group away from each other when the threaded sleeve gradually tilts, so as to compensate for the change in the spacing between the two support plates of the same group due to the change in relative height.

[0010] Furthermore, the pushing portion includes four first connecting rods, and the four first connecting rods are divided into two groups. The two first connecting rods in the same group form a first V-shaped structure and are respectively located on the upper and lower sides of the fixed seat. The closed end of the first V-shaped structure is coaxially and fixedly arranged on the hinged end of the pitch adjusting screw.

[0011] Furthermore, the pushing portion includes an adjusting component and four first connecting rods, the four first connecting rods are divided into two groups, the two first connecting rods in the same group form a second V-shaped structure, and are respectively located on the upper and lower sides of the fixed seat, the closed end of the second V-shaped structure is coaxial and hinged to the hinge end of the pitch adjusting screw; the adjusting component is configured to be able to adjust the angle of the second V-shaped structure in direct proportion to the spacing between the two support plates in the same group.

[0012] Furthermore, the adjustment assembly includes two adjusting screws and four second connecting rods, the two adjusting screws are symmetrical and threadedly inserted at the two ends of the same threaded sleeve, the pitch of the threaded structure on the adjusting screw is smaller than the pitch of the threaded structure on the pitch-adjusting screw; the four second connecting rods are divided into two groups, the two second connecting rods in the same group form a third V-shaped structure, and are respectively located on the upper and lower sides of the fixed seat, the closed end of the third V-shaped structure is coaxially and hingedly arranged at the end of the adjusting screw away from the threaded sleeve, and the two suspended ends of the third V-shaped structure are respectively hingedly arranged with the two suspended ends of the second V-shaped structure, so that the second V-shaped structure and the third V-shaped structure together form an arrow shape.

[0013] Furthermore, a common hinged end of the first connecting rod and the second connecting rod is hinged with a support foot, and the support foot is used to push the supporting plate.

[0014] Furthermore, the support plate is arranged as a split structure, and has a first support split plate and a second support split plate, and a sliding protrusion is fixedly arranged on the side wall of the first support split plate close to the second support split plate; a first sliding groove is arranged on the side wall of the second support split plate close to the first support split plate, and the sliding protrusion is elastically and movably inserted in the first sliding groove.

[0015] Furthermore, the support mechanism also includes two second elastic members and two third elastic members, the two second elastic members are both inserted into the first slide groove, and are arranged at intervals in the vertical direction, and are respectively located on the upper and lower sides of the sliding protrusion; the two third elastic members are both inserted into the first slide groove, and are arranged at intervals in the horizontal direction, and are respectively located on the left and right sides of the sliding protrusion.

[0016] Furthermore, there are four supporting mechanisms between two supporting plates in the same group, and the four supporting mechanisms are divided into two groups. The two groups of supporting mechanisms are arranged at intervals in the horizontal direction and are respectively arranged corresponding to the first supporting sub-plate and the second supporting sub-plate. The two supporting mechanisms in the same group are arranged at intervals in the vertical direction.

[0017] Furthermore, there are two supporting mechanisms between two supporting plates in the same group, and they are arranged at intervals in the vertical direction.

[0018] Furthermore, a mounting recess is provided at the top of the supporting plate, and a mounting boss is provided at the bottom of the supporting plate, and the mounting boss and the mounting recess form a keyed fit.

[0019] The beneficial effects of the present invention are:

[0020] When a civil construction support device provided by the present invention is used, the threaded sleeve is first rotated, and the threaded sleeve drives the pitch-adjusting screw to gradually extend through the threaded cooperation. Since the rotation directions of the threaded structures on the two pitch-adjusting screws are opposite, the two pitch-adjusting screws move synchronously in the directions away from each other, and the pitch-adjusting screws synchronously drive the two support plates to move away from each other through the first elastic member and the fixed seat until the spacing between the two support plates is equal to the width of the foundation pit, and then the two support plates are placed in the foundation pit to support the side walls of the foundation pit; when the depth of the foundation pit changes, one of the support plates is first driven to move downward, and during the movement of the support plate, the threaded sleeve Gradually tilted, the threaded sleeve synchronously drives the two support plates closer to each other through the pitch-adjusting screw, the first elastic member and the fixed seat. At this time, the two support plates move away from each other at the same time under the action of the pushing part, thereby compensating for a part of the spacing reduced due to the change in the relative height between the two support plates, while ensuring that the support plates are as vertical as possible, reducing the impact on the foundation pit support effect; then drive the other support plate to move downward, and during the movement of the support plate, the threaded sleeve gradually becomes horizontal, and the threaded sleeve synchronously drives the two support plates away from each other through the pitch-adjusting screw, the first elastic member and the fixed seat until the two support plates are pushed against the side wall of the foundation pit again.

[0021] Furthermore, by providing an adjustment component, during use, when the spacing between the two support plates increases, while the support plates are pressed down to a depth that remains unchanged, the final inclination of the threaded sleeve will decrease, the reduced spacing between the two support plates will decrease, and the angle of the second V-shaped structure will increase under the action of the adjustment component, so that during the process of pressing down the support plates, the push of the support plates by the hinged end common to the first connecting rod and the second connecting rod will be delayed, thereby avoiding excessive compensation; similarly, when the spacing between the two support plates decreases, while the support plates are pressed down to a depth that remains unchanged, the final inclination of the threaded sleeve will increase, the reduced spacing between the two support plates will increase, and the angle of the second V-shaped structure will decrease under the action of the adjustment component, so that during the process of pressing down the support plates, the push of the support plates by the hinged end common to the first connecting rod and the second connecting rod will be advanced, thereby ensuring sufficient compensation.

[0022] Furthermore, by setting a support foot, the support foot is set closer to the support plate than the common hinge end of the first connecting rod and the second connecting rod, so that when the support plate is pressed down, the support foot can contact and push the support plate, thereby improving the compensation accuracy of the changed spacing between the two support plates.

[0023] Furthermore, by setting the support plate as a split structure, and the sliding protrusion elastically and movably inserted in the first sliding groove, when multiple groups of support plates are installed, the first support sub-plate and the second support sub-plate both have a certain amount of free movement, thereby avoiding rigid collision with support plates of other groups caused by the changed spacing between the two support plates of the pressed group during the process of pressing down the support plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a civil engineering construction support device provided by an embodiment of the present invention Figure 1 ;

[0025] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 3 A schematic diagram of the exploded parts of a civil engineering construction support device provided by one embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the side view of the structure of the civil engineering construction support device provided by one embodiment of the present invention when adjusting the spacing between two support plates of the same group;

[0028] Figure 5 A schematic side view of the structure of two support plates of the same group of a civil engineering support device provided by an embodiment of the present invention when they are misaligned in the vertical direction;

[0029] Figure 6 A schematic diagram of the three-dimensional structure of the first connecting rod, the second connecting rod and the supporting foot of the civil construction supporting device provided by one embodiment of the present invention when assembled;

[0030] Figure 7 A schematic diagram of the three-dimensional structure of a pitch-adjustable screw rod of a civil engineering construction support device provided in one embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the three-dimensional structure of a fixing base of a civil engineering construction supporting device provided by an embodiment of the present invention;

[0032] Fig. 9 A schematic diagram of the three-dimensional structure of a first supporting sub-plate of a civil engineering construction supporting device provided in one embodiment of the present invention;

[0033] Fig.10 A schematic diagram of the three-dimensional structure of a second supporting sub-plate of a civil engineering construction supporting device provided in one embodiment of the present invention;

[0034] Fig.11 for Fig.10 A schematic diagram of the partially enlarged structure at B in the middle;

[0035] Fig.12 A schematic diagram of the three-dimensional structure of a civil engineering construction support device provided by an embodiment of the present invention Figure 2 .

[0036] in:

[0037] 1. Support plate; 101. First support sub-plate; 1011. Slide convex; 102. Second support sub-plate; 1021. First slide groove; 1022. Cover; 103. Mounting notch; 104. Mounting boss; 105. Slot; 106. Insert block; 107. Bolt hole; 11. Fixing seat; 111. Guide block; 1111. Second slide groove; 112. Support block;

[0038] 2. Support mechanism; 21. Threaded sleeve; 211. Inner cylinder; 22. Pitch-adjusting screw; 2201. Avoiding groove; 2202. Sliding hole; 221. First hinge axis; 222. Sliding block; 23. Pushing part; 231. First connecting rod; 232. Second connecting rod; 233. Adjusting screw; 2331. Second hinge axis; 24. First spring; 25. Support foot; 26. Second spring; 27. Spacer spring. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] like Figures 1 to 12As shown in the figure, the civil engineering construction support device provided by an embodiment of the present invention is used to support a foundation pit, and is configured to include a plurality of support plates 1. The plurality of support plates 1 are grouped in pairs. Two support plates 1 in the same group are parallel and spaced apart, and support plates 1 in different groups are arranged in parallel in the vertical or horizontal direction; a support mechanism 2 is arranged between two support plates 1 in the same group. The support mechanism 2 is configured to include a threaded sleeve 21, a pushing portion 23, and two first elastic members. Two adjusting screws 22 are symmetrically and threadedly inserted at both ends of the threaded sleeve 21, and the thread structures on the two adjusting screws 22 have opposite helix directions; two fixing seats 11 are symmetrically and fixedly arranged on the two mutually approaching plate surfaces of two support plates 1 in the same group. The end of the adjusting screw 22 away from the threaded sleeve 21 is hinged to the fixing seat 11, and the hinged end of the adjusting screw 22 is connected to the fixing seat 11 through a first elastic member. Under the action of the first elastic member, the hinged end of the adjusting screw 22 can elastically slide in a direction perpendicular to the plate surface of the support plate 1; the pushing portion 23 is configured to drive two support plates 1 in the same group to move away from each other when the threaded sleeve 21 is gradually tilted, so as to compensate for the changed distance between two support plates 1 in the same group due to the change in relative height.

[0043] Specifically, in this embodiment, as Figure 4 shown, the threaded sleeve 21 is horizontally arranged between two support plates 1 in the same group during installation. And for the convenience of inserting the adjusting screw 22, both ends of the threaded sleeve 21 are open, and for the convenience of forming a threaded fit with the adjusting screw 22, first internal threads are provided on the inner peripheral walls at both ends of the threaded sleeve 21, and the helix directions of the two first internal threads in the same threaded sleeve 21 are opposite; as Figure 7 shown, the circumferential side wall of the right end of the adjusting screw 22 is provided with a threaded structure, and when the adjusting screw 22 is installed, the end with the threaded structure is inserted into the threaded sleeve 21, and the threaded structure forms a threaded fit with the first internal thread; as Figure 8 shown, the fixing seat 11 is configured to have a "C" - shaped structure and a frustum - shaped structure. The "C" - shaped structure is arranged horizontally, and the frustum - shaped structure is arranged inside the opening of the "C" - shaped structure. The cross - sectional shape of the frustum - shaped structure is an isosceles trapezoid, and the vertical plane where the long side of the frustum - shaped structure is located coincides with the inner wall surface of the opening of the "C" - shaped structure.

[0044] To enable the adjusting screw 22 to form a sliding hinge fit with the fixing seat 11, as Figure 8 shown, a guiding block 111 is vertically arranged on the vertical plane where the short side of the frustum - shaped structure is located. The guiding block 111 is configured as a vertically arranged "C" - shaped block structure, and a second sliding groove 1111 is formed at the opening of the guiding block 111; as Figure 2 and Figure 7As shown, in order to avoid the guide block 111 and avoid interference, an avoidance groove 2201 is provided on the left end face of the pitch-adjusting screw 22. The avoidance groove 2201 is set as a rectangular structure, and the guide block 111 is slidably inserted in the avoidance groove 2201 during installation; a first hinge shaft 221 is vertically penetrated through the left end circumferential side wall of the pitch-adjusting screw 22, and the axis of the first hinge shaft 221 and the axis of the pitch-adjusting screw 22 are located on the same plane, and a sliding block 222 is rotatably sleeved on the first hinge shaft 221, and the sliding block 222 is simultaneously inserted in the avoidance groove 2201, and the axis of the first hinge shaft 221 passes through the center of the sliding block 222. The sliding block 222 is set as a cube structure, and the sliding block 222 is slidably inserted in the second sliding groove 1111 during installation.

[0045] like Figure 4 As shown, the first elastic member is configured as a first spring 24, and is inserted into the second slide groove 1111 during installation, and is simultaneously located between the slider 222 and the guide block 111. The first spring 24 is horizontally arranged, and one end is fixedly connected to the slider 222, and the other end is fixedly connected to the guide block 111.

[0046] When using, Figure 4 As shown, first rotate the threaded sleeve 21, and the threaded sleeve 21 drives the pitch-adjusting screw 22 to gradually extend through the threaded cooperation. Since the rotation directions of the threaded structures on the two pitch-adjusting screws 22 are opposite, the two pitch-adjusting screws 22 move synchronously in the direction away from each other; in the process of moving the pitch-adjusting screw 22, the pitch-adjusting screw 22 synchronously drives the sliding block 222 to slide along the second sliding groove 1111 in the direction away from the threaded sleeve 21 through the first hinge shaft 221, so that the distance between the sliding block 222 and the fixed seat 11 is shortened, thereby compressing the first spring 24, and the first spring 24 then pushes the supporting plate 1 to move in the direction away from the threaded sleeve 21, so that the two supporting plates 1 move away from each other; when the spacing between the two supporting plates 1 is equal to the width of the foundation pit, the two supporting plates 1 are placed in the foundation pit, and under the action of the first spring 24, the two supporting plates 1 have a tendency to move away from each other to support the side wall of the foundation pit.

[0047] When the depth of the foundation pit increases, Figure 5As shown, first, the left support plate 1 is driven to move downward. During the movement of the support plate 1, the support plate 1 simultaneously drives the threaded sleeve 21 to rotate in the counterclockwise direction, and tilts toward the upper right direction, and the inclination angle gradually increases; during the rotation of the threaded sleeve 21, the threaded sleeve 21 synchronously drives the slider 222 to slide along the second slide groove 1111 toward the threaded sleeve 21 through the first hinge shaft 221, so that the distance between the slider 222 and the fixed seat 11 increases, and then the first spring 24 is released. The first spring 24 then pulls the support plate 1 to move toward the threaded sleeve 21, so that the two support plates 1 are close to each other. At this time, under the action of the pushing part 23, the two support plates 1 move away from each other at the same time, thereby compensating for a part of the spacing that is reduced due to the change in the relative height between the two support plates 1, while ensuring that the support plate 1 is as vertical as possible, reducing the impact on the foundation pit support effect.

[0048] Then the right side support plate 1 is driven to move downward. During the movement of the support plate 1, the threaded sleeve 21 rotates in the clockwise direction and gradually becomes horizontal. During the rotation of the threaded sleeve 21, the threaded sleeve 21 synchronously drives the slider 222 to slide along the second slide groove 1111 away from the threaded sleeve 21 through the first hinge shaft 221, so that the distance between the slider 222 and the fixed seat 11 is shortened, thereby compressing the first spring 24. The first spring 24 then pushes the support plate 1 to move away from the threaded sleeve 21, so that the two support plates 1 move away from each other until the two support plates 1 are pushed against the side wall of the foundation pit again.

[0049] In some embodiments, the pushing portion 23 can be configured to include four first connecting rods 231, and the four first connecting rods 231 are divided into two groups. The two first connecting rods 231 in the same group form a first V-shaped structure, and are respectively located on the upper and lower sides of the fixed seat 11. The closed end of the first V-shaped structure is coaxially and fixedly arranged on the hinged end of the pitch adjusting screw 22.

[0050] Specifically in this embodiment, Figure 2 As shown, the first connecting rod 231 is arranged to be fixedly sleeved on the first hinge shaft 221 at the end of the closed end constituting the first V-shaped structure during installation, and to avoid interference, as shown in FIG. Figure 6 As shown, the end of the closed end of the first connecting rod 231 located on the upper side forming the first V-shaped structure is coaxial and inserted into the end of the closed end of the first connecting rod 231 located on the lower side forming the first V-shaped structure.

[0051] During use, if Figure 4 As shown, when adjusting the distance between the two support plates 1, the first V-shaped structure is symmetrically arranged about the fixing seat 11; Figure 5As shown, in the process of pressing down the left side supporting plate 1, the supporting plate 1 synchronously drives the threaded sleeve 21 to rotate in the counterclockwise direction; in the process of rotating the threaded sleeve 21, the threaded sleeve 21 synchronously drives the two first hinge shafts 221 to rotate in the counterclockwise direction relative to their respective corresponding sliders 222, wherein the first hinge shaft 221 on the left synchronously drives the first V-shaped structure on the left to rotate in the counterclockwise direction, so that the first connecting rod 231 on the upper side of the first V-shaped structure on the left side swings toward the direction close to the left side supporting plate 1, and pushes on the left side supporting plate 1 to push the left side supporting plate 1 to move in the direction away from the threaded sleeve 21, and the first V-shaped structure on the left side is located at the lower side. The first connecting rod 231 on the right side swings in the direction away from the supporting plate 1 on the left; the first hinge shaft 221 on the right side synchronously drives the first V-shaped structure on the right side to rotate in the counterclockwise direction, so that the first connecting rod 231 on the lower side of the first V-shaped structure on the right side swings in the direction close to the supporting plate 1 on the right, and pushes on the right supporting plate 1 to push the right supporting plate 1 to move away from the threaded sleeve 21, and the first connecting rod 231 on the upper side of the first V-shaped structure on the right side swings in the direction away from the supporting plate 1 on the right, so that the two supporting plates 1 move away from each other at the same time, thereby compensating for a part of the distance that is reduced due to the change in the relative height between the two supporting plates 1.

[0052] During the process of pressing down the right side support plate 1, the support plate 1 synchronously drives the threaded sleeve 21 to rotate in the clockwise direction; during the process of rotating the threaded sleeve 21, the threaded sleeve 21 synchronously drives the two first hinge shafts 221 to rotate in the clockwise direction relative to their respective corresponding sliders 222, wherein the first hinge shaft 221 on the left synchronously drives the first V-shaped structure on the left to rotate in the clockwise direction to achieve resetting; the first hinge shaft 221 on the right synchronously drives the first V-shaped structure on the right to rotate in the clockwise direction to achieve resetting.

[0053] In other embodiments, in order to further improve the stability of the first connecting rod 231 when pushing the support plate 1, the pushing portion 23 can also be configured to include eight first connecting rods 231, and the eight first connecting rods 231 are divided into two large groups, each large group is divided into two small groups, and a total of four small groups, each small group includes two first connecting rods 231, and the two first connecting rods 231 in the same group together form a first V-shaped structure, and the closed ends of the two first V-shaped structures in the same large group are symmetrical and fixedly sleeved on both ends of the first hinge shaft 221.

[0054] During the rotation of the threaded sleeve 21 , the suspended end of the first V-shaped structure on the same side of the fixing seat 11 pushes against the supporting plate 1 , thereby making the first hinge shaft 221 evenly stressed and increasing the pushing force on the supporting plate 1 .

[0055] In other embodiments, the pushing portion 23 can also be configured to include an adjustment component and four first connecting rods 231, the four first connecting rods 231 are divided into two groups, the two first connecting rods 231 in the same group form a second V-shaped structure, and are respectively located on the upper and lower sides of the fixed seat 11, and the closed end of the second V-shaped structure is coaxial and hingedly arranged on the hinged end of the pitch adjusting screw 22; the adjustment component is configured to be able to adjust the angle of the second V-shaped structure in direct proportion to the spacing between the two support plates 1 in the same group.

[0056] Specifically in this embodiment, Figure 2 As shown, the end of the first connecting rod 231 forming the closed end of the second V-shaped structure during installation can be rotatably sleeved on the first hinge shaft 221, and in order to avoid interference, as shown in FIG. Figure 6 As shown, the end of the closed end of the second V-shaped structure formed by the first connecting rod 231 located on the upper side is coaxial and inserted into the end of the closed end of the second V-shaped structure formed by the first connecting rod 231 located on the lower side.

[0057] During use, when the spacing between the two support plates 1 increases, the final inclination of the threaded sleeve 21 will decrease when the pressing depth of the support plates 1 remains unchanged, and the reduced spacing between the two support plates 1 will decrease. Under the action of the adjusting component, the angle of the second V-shaped structure will increase, so that during the pressing process of the support plates 1, the push of the first connecting rod 231 and the second connecting rod 232 on the support plates 1 is delayed, thereby avoiding excessive compensation; similarly, when the spacing between the two support plates 1 decreases, the final inclination of the threaded sleeve 21 will increase when the pressing depth of the support plates 1 remains unchanged, and the reduced spacing between the two support plates 1 will increase. Under the action of the adjusting component, the angle of the second V-shaped structure will decrease, so that during the pressing process of the support plates 1, the push of the first connecting rod 231 and the second connecting rod 232 on the support plates 1 is advanced, thereby ensuring sufficient compensation.

[0058] In a further embodiment, the adjustment assembly is configured to include two adjustment screws 233 and four second connecting rods 232, the two adjustment screws 233 are symmetrical and threadedly inserted at both ends of the same threaded sleeve 21, and the pitch of the threaded structure on the adjustment screw 233 is smaller than the pitch of the threaded structure on the pitch-adjusting screw 22; the four second connecting rods 232 are divided into two groups, and the two second connecting rods 232 in the same group form a third V-shaped structure, and are respectively located on the upper and lower sides of the fixed seat 11, and the closed end of the third V-shaped structure is coaxially and hingedly arranged at one end of the adjustment screw 233 away from the threaded sleeve 21, and the two suspended ends of the third V-shaped structure are respectively hingedly arranged with the two suspended ends of the second V-shaped structure, so that the second V-shaped structure and the third V-shaped structure together form an arrow shape.

[0059] Specifically in this embodiment, Figure 3 and Figure 4 As shown, the adjusting screw 233 is set as a T-shaped structure, and has a horizontal section and a vertical section connected vertically, and a threaded structure is provided on the circumferential side wall of the suspended end of the vertical section; in order to facilitate the threaded match with the threaded sleeve 21, an inner cylinder 211 is symmetrically and inserted inside the threaded sleeve 21, and the inner cylinder 211 and the threaded sleeve 21 are coaxially arranged, and second internal threads are provided on the inner circumferential walls at both ends of the inner cylinder 211. The two second internal threads in the same inner cylinder 211 have opposite rotation directions, and the pitch of the second internal thread is smaller than the pitch of the first internal thread. When installing, one end of the adjusting screw 233 with the threaded structure is inserted into the inner cylinder 211, and the threaded structure and the second internal thread form a threaded match; in order to facilitate the hinged connection with the second connecting rod 232, a second hinge shaft 2331 is coaxially inserted in the horizontal section of the adjusting screw 233, as shown in FIG. Figure 2 As shown, the second connecting rod 232 is arranged to be rotatably sleeved on the second hinge shaft 2331 at the end of the closed end forming the third V-shaped structure during installation, and in order to avoid interference, as shown in FIG. Figure 6 As shown, the upper second link 232 is located on the inner side of the first link 231, the lower second link 232 is located on the inner side of the upper first link 231, and the right end portion of the second link 232 located on the upper side and the right end portion of the first link 231 located on the upper side are hinged, and the right end portion of the second link 232 located on the lower side and the right end portion of the first link 231 located on the lower side are hinged to form an arrow shape together.

[0060] To avoid interference, Figure 7 As shown, a sliding hole 2202 is provided on the circumferential side wall of the pitch-adjusting screw 22 near one end of the first hinge shaft 221. The sliding hole 2202 is configured as a rounded rectangular structure and is arranged parallel to the pitch-adjusting screw 22; Figure 2 As shown, the second hinge shaft 2331 penetrates through and is slidably inserted into the sliding hole 2202 during installation.

[0061] More specifically, in order to facilitate supporting the second hinge shaft 2331, as Figure 8 As shown, two support blocks 112 are symmetrically arranged on the table-like structure at both ends of the guide block 111. The support blocks 112 are arranged in a C-shaped structure, and the opening direction is consistent with the opening direction of the guide block 111; Figure 2 As shown, the second hinge shaft 2331 is slidably inserted into the opening of the support block 112 during installation.

[0062] When using, Figure 4As shown, first, the threaded sleeve 21 is rotated, and the threaded sleeve 21 drives the pitch-adjusting screw 22 and the adjusting screw 233 to gradually extend through the threaded cooperation. Since the rotation directions of the thread structures on the two pitch-adjusting screws 22 are opposite, the two pitch-adjusting screws 22 move synchronously in directions away from each other. Since the rotation directions of the thread structures on the two adjusting screws 233 are opposite, the two adjusting screws 233 move synchronously in directions away from each other. Since the pitch of the thread structure on the adjusting screw 233 is smaller than the pitch of the thread structure on the pitch-adjusting screw 22, the distance that the pitch-adjusting screw 22 moves away from the threaded sleeve 21 is greater than the distance that the adjusting screw 233 moves away from the threaded sleeve 21, thereby gradually increasing the distance between the first hinge shaft 221 and the second hinge shaft 2331 on the same side, thereby causing the common hinged end of the first connecting rod 231 and the second connecting rod 232 to swing toward the direction close to the threaded sleeve 21.

[0063] like Figure 5 As shown, during the process of pressing down the left side support plate 1, the support plate 1 synchronously drives the threaded sleeve 21 to rotate in the counterclockwise direction; during the process of rotating the threaded sleeve 21, the threaded sleeve 21 synchronously drives the second V-shaped structure and the third V-shaped structure to rotate in the counterclockwise direction as a whole. Since the common hinged end of the first connecting rod 231 and the second connecting rod 232 swings toward the direction close to the threaded sleeve 21, the common hinged end of the left side first connecting rod 231 and the second connecting rod 232 located on the upper side is delayed and pushed onto the left side support plate 1, and at the same time, the common hinged end of the right side first connecting rod 231 and the second connecting rod 232 located on the lower side is delayed and pushed onto the right side support plate 1, thereby avoiding excessive compensation.

[0064] When the distance between the two support plates 1 increases, on the one hand, when the pressing depth of the support plate 1 remains unchanged, the final inclination degree of the threaded sleeve 21 will decrease, and the reduced distance between the two support plates 1 will decrease; on the other hand, the number of rotations of the threaded sleeve 21 will increase, so that the distance between the first hinge shaft 221 and the second hinge shaft 2331 on the same side becomes farther, and thus the angle at which the common hinged end of the first connecting rod 231 and the second connecting rod 232 swings toward the direction close to the threaded sleeve 21 becomes larger, and thus the time for the common hinged end of the first connecting rod 231 and the second connecting rod 232 to push the support plate 1 is delayed longer, thereby adaptively reducing the compensation amount to avoid excessive compensation.

[0065] Similarly, when the spacing between the two support plates 1 decreases, on the one hand, when the pressing depth of the support plate 1 remains unchanged, the final inclination degree of the threaded sleeve 21 will increase, and the reduced spacing between the two support plates 1 will increase. On the other hand, the number of rotations of the threaded sleeve 21 will decrease, making the distance between the first hinge shaft 221 and the second hinge shaft 2331 on the same side closer, and thus making the angle at which the common hinge end of the first connecting rod 231 and the second connecting rod 232 swing away from the threaded sleeve 21 larger, and thus making the time for the common hinge end of the first connecting rod 231 and the second connecting rod 232 to push the support plate 1 in advance longer, thereby being able to adaptively increase the compensation amount.

[0066] In a further embodiment, a support foot 25 is hingedly connected to the common hinged end of the first connecting rod 231 and the second connecting rod 232 , and the support foot 25 is used to push the supporting plate 1 .

[0067] Specifically in this embodiment, Figure 2 As shown, the support foot 25 is configured as a right-angled triangle block structure, and the surface where one of the right-angled sides is located is configured to face the supporting plate 1.

[0068] During use, the support foot 25 is arranged closer to the support plate 1 than the common hinge end of the first connecting rod 231 and the second connecting rod 232, so that when the support plate 1 is pressed down, the support foot 25 can contact and push the support plate 1, thereby improving the compensation accuracy for the changed spacing between the two support plates 1.

[0069] In other embodiments, in order to further improve the stability of the common hinged end of the first link 231 and the second link 232 when pushing the support plate 1, the pushing portion 23 can also be configured to include eight first links 231 and eight second links 232, the eight first links 231 are divided into two large groups, each large group is divided into two small groups, a total of four small groups, each small group includes two first links 231, the two first links 231 in the same group together constitute a second V-shaped structure, the ends of the closed ends of the two second V-shaped structures in the same large group are symmetrically and rotatably sleeved on both ends of the first hinge shaft 221; the eight second links 232 are divided into two large groups, each large group is divided into two small groups, a total of four small groups, each small group includes two second links 232, the two second links 232 in the same group together constitute a third V-shaped structure, the ends of the closed ends of the two third V-shaped structures in the same large group are symmetrically and rotatably sleeved on both ends of the second hinge shaft 2331.

[0070] During the rotation of the threaded sleeve 21, the common hinged ends of the second V-shaped structure and the third V-shaped structure on the same side of the fixed seat 11 push against the support plate 1, thereby making the first hinge shaft 221 and the second hinge shaft 2331 evenly stressed and increasing the thrust force on the support plate 1.

[0071] In some other embodiments, the support plate 1 is provided as a split structure and has a first support sub-plate 101 and a second support sub-plate 102. A sliding convex 1011 is fixedly provided on the side wall of the first support sub-plate 101 close to the second support sub-plate 102; a first sliding groove 1021 is provided on the side wall of the second support sub-plate 102 close to the first support sub-plate 101, and the sliding convex 1011 is elastically and movably inserted into the first sliding groove 1021.

[0072] Specifically in this embodiment, as Fig. 9 shown, the sliding convex 1011 is provided as an "I"-shaped strip structure and is arranged in parallel on the right side wall of the first support sub-plate 101; as Fig.10 and Fig.11 shown, a "door"-shaped installation frame is fixedly arranged in parallel on the left side wall of the second support sub-plate 102, and the first sliding groove 1021 is formed inside the installation frame; and to prevent the sliding convex 1011 from sliding out of the first sliding groove 1021, covers 1022 are closed at both the top and the bottom of the installation frame. The covers 1022 are provided as "匚"-shaped structures and the openings are arranged towards the installation frame. The covers 1022 are detachably connected to the ends of the installation frame by bolts during installation.

[0073] When installing multiple groups of support plates 1, both the first support sub-plate 101 and the second support sub-plate 102 have a certain degree of free movement. On the one hand, it is beneficial to improve the simplicity during installation and avoid the inability to install due to processing accuracy problems. On the other hand, during the process of pressing down the support plate 1, it can avoid the rigid collision with the support plates 1 of other groups caused by the changed distance between the two support plates 1 of the group being pressed.

[0074] In a further embodiment, to facilitate the movable connection of the sliding convex 1011, the support mechanism 2 is further provided with two second elastic members and two third elastic members. The two second elastic members are both inserted into the first sliding groove 1021 and are arranged at intervals in the vertical direction and are respectively located on the upper and lower sides of the sliding convex 1011; the two third elastic members are both inserted into the first sliding groove 1021 and are arranged at intervals in the horizontal direction and are respectively located on the left and right sides of the sliding convex 1011.

[0075] Specifically in this embodiment, as Fig.11 shown, the second elastic member is provided as a second spring 26. The two second springs 26 are arranged at intervals along the extension direction of the first sliding groove 1021. The top of one second spring 26 is fixedly connected to the bottom of the upper cover 1022 and the bottom is suspended, and the bottom of the other second spring 26 is fixedly connected to the top of the lower cover 1022 and the top is suspended; the third elastic member can be provided as a spacer spring 27. The two spacer springs 27 are arranged at intervals along the direction perpendicular to the extension direction of the first sliding groove 1021 and are respectively fixedly arranged on the left and right inner side walls of the installation frame.

[0076] When in use, the sliding protrusion 1011 is clamped by the two second springs 26 and the two gasket springs 27 at the same time, so that there is a certain amount of free movement between the first supporting sub-plate 101 and the second supporting sub-plate 102 .

[0077] In other embodiments, the third elastic member may also be configured as a disc spring.

[0078] In other embodiments, the number of support mechanisms 2 between two support plates 1 in the same group is four, and the four support mechanisms 2 are divided into two groups. The two groups of support mechanisms 2 are arranged at intervals in the horizontal direction and are respectively arranged corresponding to the first support sub-plate 101 and the second support sub-plate 102. The two support mechanisms 2 in the same group are arranged at intervals in the vertical direction.

[0079] Specifically in this embodiment, Figure 1 As shown, the arrangement of four supporting mechanisms 2 can enhance the supporting effect of the supporting plate 1 on the foundation pit; at the same time, in the process of pressing down the supporting plate 1, the two supporting mechanisms 2 in the same group can ensure that the supporting plate 1 is always in a vertical state.

[0080] In some other embodiments, the number of the supporting mechanisms 2 between two supporting plates 1 in the same group is two, and they are arranged at intervals in the vertical direction.

[0081] Specifically in this embodiment, during the process of pressing down the supporting plate 1, the two supporting mechanisms 2 arranged along the vertical direction can ensure that the supporting plate 1 is always in a vertical state.

[0082] In other embodiments, in order to improve the connection stability between different groups of support plates 1, a mounting recess 103 is provided at the top of the support plate 1, and a mounting boss 104 is provided at the bottom of the support plate 1, and the mounting boss 104 and the mounting recess 103 form a key fit.

[0083] Specifically in this embodiment, Figure 1 As shown, the mounting recess 103 is configured as an inwardly concave arc structure, the mounting boss 104 is configured as an outwardly convex arc structure, and two slots 105 are symmetrically arranged on the arc surface of the mounting recess 103, and two plug blocks 106 are symmetrically arranged on the arc surface of the mounting boss 104. The plug blocks 106 are inserted into the slots 105 during installation, so that the mounting boss 104 and the mounting recess 103 form a keyed fit.

[0084] More specifically, in order to further improve the connection stability between the plug block 106 and the slot 105, a bolt hole 107 is opened through the plate surface of the support plate 1 at a position corresponding to the slot 105, and a bolt hole 107 is opened through the surface parallel to the plug block 106 and the plate surface of the support plate 1.

[0085] During use, after the insert block 106 is inserted into the slot 105, the bolts can first be passed through the bolt holes 107 on the insert block 106 and the bolt holes 107 on the slot 105 in sequence, and then the nuts can be screwed on the bolts to fix the support plates 1 arranged in the vertical direction together through the insert block 106.

[0086] In other embodiments, Fig. 9 and Fig.10 As shown, mounting recesses 103 are provided at the tops of the first supporting sub-plate 101 and the second supporting sub-plate 102, mounting bosses 104 are provided at the bottoms of the first supporting sub-plate 101 and the second supporting sub-plate 102, two slots 105 are symmetrically provided on each mounting recess 103, and two plug blocks 106 are symmetrically provided on each mounting boss 104.

[0087] In a further embodiment, in order to further improve the connection stability between the plug block 106 and the slot 105, bolt holes 107 are opened through the plate surfaces of the first supporting sub-plate 101 and the second supporting sub-plate 102 at positions corresponding to the slot 105, and bolt holes 107 are opened through the surface of each plug block 106 and the surface of the first supporting sub-plate 101 or the second supporting sub-plate 102 that is parallel to the plate surface.

[0088] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A civil engineering construction support device, characterized in that: The civil engineering construction support device comprises a plurality of support plates, wherein the plurality of support plates are arranged in groups of two, the two support plates of the same group are arranged in parallel and at intervals, and the support plates of different groups are arranged in parallel along the vertical direction or the horizontal direction; a support mechanism is arranged between the two support plates of the same group, and the support mechanism comprises a threaded sleeve, a pushing part and two first elastic members, the two ends of the threaded sleeve are symmetrical and two pitch-adjusting screws are threadedly inserted, and the rotation directions of the thread structures on the two pitch-adjusting screws are opposite; two fixing seats are symmetrically and fixedly arranged on two plate surfaces close to each other of the two support plates of the same group, one end of the pitch-adjusting screw away from the threaded sleeve is hinged on the fixing seat, and the hinged end of the pitch-adjusting screw is connected to the fixing seat through the first elastic member, and the hinged end of the pitch-adjusting screw can slide elastically in a direction perpendicular to the plate surface of the support plate under the action of the first elastic member; the pushing part is configured to drive the two support plates of the same group to move away from each other when the threaded sleeve is gradually tilted, so as to compensate for the change in the spacing between the two support plates of the same group due to the change in relative height.

2. The civil engineering construction support device according to claim 1, characterized in that: The pushing portion includes four first connecting rods, and the four first connecting rods are divided into two groups. The two first connecting rods in the same group form a first V-shaped structure and are respectively located on the upper and lower sides of the fixed seat. The closed end of the first V-shaped structure is coaxially and fixedly arranged on the hinged end of the pitch adjusting screw.

3. The civil engineering construction support device according to claim 1, characterized in that: The pushing part includes an adjusting component and four first connecting rods, and the four first connecting rods are divided into two groups. The two first connecting rods in the same group form a second V-shaped structure and are respectively located on the upper and lower sides of the fixed seat. The closed end of the second V-shaped structure is coaxial and hinged to the hinge end of the pitch adjusting screw; the adjusting component is configured to be able to adjust the angle of the second V-shaped structure in direct proportion to the spacing between the two support plates in the same group.

4. The civil engineering construction support device according to claim 3, characterized in that: The adjustment assembly includes two adjustment screws and four second connecting rods, the two adjustment screws are symmetrical and threadedly inserted at the two ends of the same threaded sleeve, the pitch of the thread structure on the adjustment screw is smaller than the pitch of the thread structure on the pitch-adjusting screw; the four second connecting rods are divided into two groups, the two second connecting rods in the same group form a third V-shaped structure, and are respectively located on the upper and lower sides of the fixed seat, the closed end of the third V-shaped structure is coaxially and hingedly arranged at the end of the adjustment screw away from the threaded sleeve, and the two suspended ends of the third V-shaped structure are respectively hingedly arranged with the two suspended ends of the second V-shaped structure, so that the second V-shaped structure and the third V-shaped structure together form an arrow shape.

5. The civil engineering construction support device according to claim 4, characterized in that: A support foot is hingedly connected to the common hinged end of the first connecting rod and the second connecting rod, and the support foot is used to push the supporting plate.

6. The civil engineering construction support device according to claim 1, characterized in that: The supporting plate is arranged as a split structure, and comprises a first supporting split plate and a second supporting split plate, a sliding protrusion is fixedly arranged on the side wall of the first supporting split plate close to the second supporting split plate; a first sliding groove is arranged on the side wall of the second supporting split plate close to the first supporting split plate, and the sliding protrusion is elastically and movably inserted in the first sliding groove.

7. The civil engineering construction support device according to claim 6, characterized in that: The support mechanism also includes two second elastic members and two third elastic members. The two second elastic members are both inserted into the first slide groove, and are arranged at intervals in the vertical direction, and are respectively located on the upper and lower sides of the sliding protrusion; the two third elastic members are both inserted into the first slide groove, and are arranged at intervals in the horizontal direction, and are respectively located on the left and right sides of the sliding protrusion.

8. The civil engineering construction support device according to claim 6, characterized in that: There are four supporting mechanisms between the two supporting plates in the same group. The four supporting mechanisms are divided into two groups. The two groups of supporting mechanisms are arranged at intervals in the horizontal direction and are respectively arranged corresponding to the first supporting sub-plate and the second supporting sub-plate. The two supporting mechanisms in the same group are arranged at intervals in the vertical direction.

9. The civil engineering construction support device according to claim 1, characterized in that: There are two supporting mechanisms between two supporting plates in the same group, and they are arranged at intervals in the vertical direction.

10. The civil engineering construction support device according to claim 1, characterized in that: The top of the support plate is provided with a mounting recess, and the bottom of the support plate is provided with a mounting boss, and the mounting boss and the mounting recess form a keyed fit.

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