Fabricated cement pavement slab connecting structure

Abstract

The utility model discloses an assembly type cement pavement slab connecting structure, particularly relates to the technical field of road construction, and comprises a connecting frame, and the connecting frame is arranged at the intersection position of four pavement slabs. Through the arrangement of the connecting frame and the locking assembly, stable positioning of the pavement slab on the plane is achieved, it is ensured that the pavement slab is not prone to displacement in the horizontal direction, and therefore the flatness and structural integrity of the pavement are guaranteed, meanwhile, reliable fixing in the vertical direction is achieved through the locking assembly, and the pavement slab is not prone to displacement. By means of the structure, fixing in the vertical direction and stable positioning in the plane direction are combined, all-directional stable connection is formed, external force can be better resisted, it is ensured that the pavement slab is kept flat and stable for a long time, the pavement slab can bear long-term pressure and repeated load effects, and the pavement slab is prevented from being damaged. Therefore, pavement deformation or damage caused by connection looseness or damage is avoided, and the damage speed of the pavement slab is slowed down.

Description

TECHNICAL FIELD

[0001] The utility model relates to road construction technical field, concretely relates to a kind of assembled cement pavement slab connecting structure. BACKGROUND

[0002] In the construction of traditional cement pavement, cement is directly paved on the road surface for construction, which is time-consuming. To solve the problem of long construction time in the traditional way, prefabricated cement pavement slabs are used to form an assembled cement pavement during road construction.

[0003] In the application No. 202020876780.7, a kind of assembled prestressed pavement slab is disclosed, "the top surface of the pavement slab has longitudinal and transverse V-shaped grooves, and the top surface of the pavement slab is rough, the bottom surface of the pavement slab is provided with longitudinal and transverse V-shaped grooves, and the bottom surface of the pavement slab is rough, vertical fixing holes are opened on the left and right sides of the pavement slab, round pipes or steel rods are inserted into the roadbed through the vertical fixing holes, the roadbed is provided with horizontal and vertical holes, and the pavement slab is connected by horizontal and vertical holes through cables or steel bars, and the pavement slab is connected by trapezoidal rabbet connection", the pavement slab connection method in the above is simple rabbet connection, which cannot provide sufficient connection strength between the cement pavement slabs, and under the repeated action of vehicle load, the pavement slabs are prone to displacement and dislocation, displacement can damage the original arrangement of the pavement slabs, and dislocation directly affects the road surface flatness, resulting in poor road surface flatness and damage to the stability of the cement pavement, which reduces the comfort of vehicle driving and affects the safety of vehicle driving, and also accelerates the damage of the pavement slabs, therefore, an assembled cement pavement slab connecting structure is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide an assembled cement pavement slab connecting structure to solve the above problems in the art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an assembled cement pavement slab connecting structure, comprising a connecting frame, the connecting frame is arranged at the intersection of four pavement slabs, and the whole connecting frame is divided into a first plug-in part, a second plug-in part, a third plug-in part and a fourth plug-in part, a locking assembly is arranged on the connecting frame, the locking assembly comprises a hollow slot formed in the inner wall of the connecting frame, a movable block is inserted into the hollow slot, a horizontal bar is fixedly connected to the inner side wall of the movable block, a threaded rod is threadedly connected to the screw hole formed in the horizontal bar, one end of the threaded rod is connected to an end block, the end block is movably connected to the rotating slot reserved on the upper end surface of the connecting frame, and two embedding blocks are symmetrically fixedly connected to the lower end surface of the movable block.

[0006] Preferably, the other end of the threaded rod is fixedly connected with a connecting rod, and the end of the connecting rod away from the threaded rod is movably connected with the hollow groove, thereby ensuring the stability of the threaded rod during rotation.

[0007] Preferably, the hollow groove is internally connected with a first spring, the free end of the first spring is connected with the horizontal strip, and the first spring is sleeved on the symmetric outer portion of the threaded rod. In the initial state, the first spring is in a compressed state. The embedded block is arranged in the interior of the hollow groove and the end thereof is flush with the lower end surface of the connecting frame. When the road panel is subjected to external force (such as vibration generated by vehicle driving, slight settlement of the road surface, etc.), upward force may be generated on the embedded block, and the embedded block tends to be separated from the embedding groove in the road panel. At this time, the downward elastic force generated by the compressed first spring can assist the embedded block to be better retained in the embedding groove, thereby preventing the embedded block from being accidentally separated, and further enhancing the stability of the connection between the connecting frame and the road panel.

[0008] Specifically, during connection, first, the connecting frame is arranged at the middle position of the intersection of the four road panels which can be spliced into a cross shape. Then, the road panels are pushed towards the middle point, so that the first insertion part and the third insertion part are inserted into the insertion grooves arranged on the long edges of the road panels, and the fourth insertion part and the second insertion part are inserted into the insertion grooves arranged on the wide edges of the two road panels. In this way, the stable positioning of the road panels in the plane is achieved. Then, a rotating tool is taken and one end thereof is inserted into the perforation reserved and arranged on the road panel until the end block is inserted into the groove arranged on the top of the end block. Then, the rotating tool drives the end block to rotate, thereby driving the threaded rod to rotate. At the same time, the horizontal strip is threadedly connected with the threaded rod, so that the horizontal strip and the movable block move downward in the hollow groove, and the two embedded blocks on the lower end surface of the movable block move out of the hollow groove and are respectively inserted into the embedding grooves reserved and arranged on the adjacent two road panels. In this way, reliable fixation in the vertical direction is achieved, which can better resist external force, thereby ensuring that the road panel remains flat and stable for a long time, and the assembly and connection of the road panel are quickly completed.

[0009] By the above technical solution:

[0010] The mechanical connection by cooperation of the cross-shaped connecting frame and the locking assembly replaces the traditional tongue-and-groove connection, which ensures that the road panel cannot be easily displaced in the horizontal direction, thereby ensuring the flatness and structural integrity of the road surface. The road panel can withstand long-term pressure and repeated load action, avoids deformation or damage of the road surface due to loose or damaged connection, and slows down the damage speed of the road panel.

[0011] Preferably, a stretching assembly is arranged between the adjacent connecting frames. The stretching assembly comprises a first connecting block and a second connecting block which are respectively connected to the opposite outer walls of the adjacent two connecting frames by bolts.

[0012] Preferably, the stretching assembly further comprises a crossbar fixedly connected to the wall of the first connecting block, a rod slot is formed in the interior of the crossbar, and a movable rod is inserted into the rod slot, one end of the movable rod being fixedly connected to the second connecting block.

[0013] Preferably, a sliding block is fixedly connected to the outer wall of the movable rod and located in the interior of the rod slot of the crossbar, a sliding groove is formed in the outer wall of the crossbar and used in cooperation with the sliding block, and the protruding part of the sliding block is embedded in the interior of the sliding groove.

[0014] Preferably, one end of the sliding block is connected to a second spring, and the second spring is sleeved on the exterior of the movable rod. During long-term use, the movable rod may be slightly displaced in the crossbar due to vibration and other factors. The second spring can continuously exert a certain pressure to keep the sliding block in close contact with the sliding groove, prevent the connecting structure from loosening due to long-term vibration, and ensure the stability of the pavement panel connection.

[0015] Through the above technical solutions:

[0016] During connection, the stretching assembly is fixedly connected between two connecting frames by bolts, (after being connected to the tail, the stretching assembly between two adjacent connecting frames can be removed), during connection, one of the connecting frames can be pulled, the movable rod is gradually moved out of the crossbar, at the same time, the sliding block slides in the sliding groove along with the movement of the movable rod (the second spring sleeved on the exterior of the movable rod is in a compressed state), so that the connecting structure can be applied to pavement panels of different specifications, and the stability of the connecting structure is further ensured by connecting two adjacent connecting frames, which can effectively prevent displacement or damage of the pavement panel due to loosening of the connecting structure during use of the pavement panel, thereby ensuring the stability and safety of the whole road.

[0017] In the above technical solutions, the technical effects and advantages of the utility model are as follows:

[0018] 1. By arranging the connecting frame and the locking assembly, during connection, the plurality of insertion parts are inserted into the insertion slots of the pavement panel from different directions, the stable position of the pavement panel on the plane is achieved, the displacement of the pavement panel in the horizontal direction is prevented, the flatness and structural integrity of the pavement are ensured, the reliable fixation in the vertical direction is achieved by using the locking assembly, the fixation in the vertical direction is combined with the stable position in the plane direction, the omnibearing stable connection is formed, the external force can be better resisted, the pavement panel can long-term maintain flatness and stability, the pavement panel can bear long-term pressure and repeated load action, the pavement deformation or damage caused by loosening or damage of the connection is avoided, and the damage speed of the pavement panel is slowed down.

[0019] 2、By setting the stretching assembly, the connection of the two adjacent connecting frames can be realized during use, the stability of the connecting structure is ensured, displacement or damage of the pavement slab due to loosening of the connecting structure can be effectively prevented during use of the pavement slab, thereby the stability and safety of the whole road are ensured, and secondly, the distance between the two connecting frames can be adjusted according to pavement slabs of different specifications, so that the connecting structure is applicable to pavement slabs of different specifications, different connecting structures need not be specially designed and prepared for pavement slabs of different specifications, and the versatility and flexibility of the connecting structure are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 It is a schematic view of the overall structure of the present application.

[0022] Figure 2 It is a schematic view of the pavement slab after splicing of the present application.

[0023] Figure 3 It is a schematic view of the connection between the pavement slab and the connecting frame of the present application.

[0024] Figure 4 It is a schematic view of the connection between the pavement slab and the connecting frame of the present application.

[0025] Figure 5 It is an enlarged schematic view of the locking assembly of the present application.

[0026] Figure 6 It is a schematic view of the locking assembly in the initial state of the present application.

[0027] Figure 7 It is an enlarged schematic view of the stretching assembly of the present application.

[0028] Figure 8 It is a sectional view of the cross bar of the present application.

[0029] Explanation of reference signs:

[0030] 1, connecting frame; 11, first plug-in part; 12, second plug-in part; 13, third plug-in part; 14, fourth plug-in part; 2, hollow groove; 3, movable block; 4, cross bar; 5, threaded rod; 6, connecting rod; 7, end block; 8, embedded block; 9, stretching assembly; 91, first connecting block; 92, second connecting block; 93, cross bar; 94, movable rod; 95, sliding block; 96, sliding groove. DETAILED DESCRIPTION

[0031] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in combination with the drawings.

[0032] The utility model provides a kind of assembled cement pavement slab connecting structure as Figures 1-6 As shown in a kind of assembled cement pavement slab connecting structure, comprising:

[0033] Connecting frame 1 is located at the position where four pavement slabs intersect, and the whole of connecting frame 1 is divided into first plug-in part 11, second plug-in part 12, third plug-in part 13 and fourth plug-in part 14, locking assembly is equipped on connecting frame 1, locking assembly includes the empty slot 2 being opened in the inner wall of connecting frame 1, the inside of empty slot 2 is inserted with movable block 3, the inner side wall of movable block 3 is fixedly connected with horizontal bar 4, the screw hole being opened in horizontal bar 4 is screw-connected with threaded rod 5, one end of threaded rod 5 is connected with end block 7, end block 7 is movably connected in the rotation slot being reservedly opened in the upper end surface of connecting frame 1, the lower end surface of movable block 3 is fixedly connected with two embedding blocks 8 symmetrically.

[0034] The other end of threaded rod 5 is fixedly connected with connecting rod 6, the end, away from threaded rod 5, of connecting rod 6 is movably connected with empty slot 2, to ensure the stability of the screwing rotation of threaded rod 5.

[0035] First spring is connected in the inside of empty slot 2, the free end of first spring is connected with horizontal bar 4, and first spring is sleeved on the symmetrical outside of threaded rod 5, in initial state, first spring is in compression state, embedding block 8 is arranged in the inside of empty slot 2, and the end portion thereof is flush with the lower end surface of connecting frame 1, when pavement slab is subjected to external force (such as the vibration generated by vehicle driving, slight settlement of pavement etc.), it can generate upward force to embedding block 8, and embedding block 8 has the tendency to be pulled out from pavement slab embedding groove, at this time, the downward elastic force generated by first spring in compression state can assist embedding block 8 to be kept in embedding groove better, to prevent embedding block 8 from being pulled out accidentally, to further enhance the stability of the connection between connecting frame 1 and pavement slab.

[0036] Specifically, during connection, first, the connecting frame 1 is placed at the middle position of the intersection of four pavement panels spliced into a square shape, then the pavement panels are pushed to the middle point, so that the first insertion part 11 and the third insertion part 13 are inserted into the insertion slots formed in the long edges of the pavement panels, the fourth insertion part 14 and the second insertion part 12 are inserted into the insertion slots formed in the wide edges of the two pavement panels, the stable position of the pavement panels in the plane is realized, then a screwing tool is taken and one end of the screwing tool is inserted into the perforation reserved and formed in the pavement panel until the end block 7 is inserted into the slot formed in the top of the end block 7, then the screwing tool drives the end block 7 to rotate, thereby driving the threaded rod 5 to rotate, at the same time, the cross strip 4 is threadedly connected with the threaded rod 5, so that the cross strip 4 and the movable block 3 are lowered in the empty slot 2, so that the two embedding blocks 8 on the lower end surface of the movable block 3 are moved out of the empty slot 2 and are inserted into the embedding slots reserved and formed in the adjacent two pavement panels, reliable fixation in the vertical direction is realized, external force can be better resisted, the pavement panels can be kept flat and stable for a long time, and the assembly and connection of the pavement panels are quickly completed.

[0037] Through the above technical scheme,

[0038] The mechanical connection of the cross-shaped connecting frame 1 and the locking assembly is used in cooperation to replace the traditional tongue-and-groove connection, so that the pavement panels cannot be easily displaced in the horizontal direction, the flatness and structural integrity of the pavement are ensured, the pavement panels can withstand long-term pressure and repeated load action, pavement deformation or damage caused by loose or damaged connection is avoided, and the damage speed of the pavement panels is slowed down.

[0039] The utility model provides a kind of Figure 1 、 Figure 3 、 Figure 4 And Figure 7 As shown in a kind of assembly type cement pavement panel connecting structure, tensile assembly 9 is equipped between adjacent connecting frame 1, and tensile assembly 9 includes first connecting block 91 and second connecting block 92 connected to the opposite outer wall of adjacent two connecting frame 1 by bolt respectively.

[0040] Further, as shown in Figure 8 Tensile assembly 9 further includes horizontal rod 93 fixedly connected to the outer wall of first connecting block 91, and movable rod 94 is inserted into the rod slot formed in the inside of horizontal rod 93, and one end of movable rod 94 is fixedly connected with second connecting block 92.

[0041] Sliding block 95 is fixedly connected to the outer surface of movable rod 94 and located in the inside of the rod slot formed in horizontal rod 93, and the outer surface of horizontal rod 93 is provided with sliding groove 96 used in cooperation with sliding block 95, and the protruding part of sliding block 95 is embedded in the inside of sliding groove 96.

[0042] One end of the sliding block 95 is connected with a second spring, the second spring is sleeved outside the movable rod 94, in the long-term use process, due to vibration and other factors, the movable rod 94 can appear slight displacement in the crossbar 93, the second spring can continuously exert certain pressure, make the sliding block 95 and the sliding groove 96 keep close contact, prevent the connecting structure from loosening due to long-term vibration, guarantee the stability of the pavement slab connection.

[0043] Through the above technical scheme:

[0044] When connecting, the stretching assembly 9 is fixedly connected between the two connecting frames 1 through bolts, (after being connected to the tail, the stretching assembly 9 between the two adjacent connecting frames 1 can be removed), when connecting, one of the connecting frames 1 can be pulled, the movable rod 94 gradually moves out of the crossbar 93, at the same time, the sliding block 95 slides in the sliding groove 96 along with the movement of the movable rod 94 (the second spring sleeved outside the movable rod 94 is in the compressed state), so that the connecting structure can be suitable for pavement slabs of different specifications, secondly, by connecting the two adjacent connecting frames 1, the stability of the connecting structure is further ensured, in the use process of the pavement slab, the displacement or damage of the pavement slab caused by the loosening of the connecting structure can be effectively prevented, and the stability and safety of the whole road are further ensured.

[0045] The above only describes some exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways, therefore, the above drawings and description are illustrative in nature, should not be understood as the limitation of the utility model claim protection scope.

Claims

1. A prefabricated cement pavement slab connecting structure, characterized by, The utility model relates to a connecting frame (1) is equipped at the position of four road panels intersection, and the whole of connecting frame (1) is divided into first insertion part (11), second insertion part (12), third insertion part (13) and fourth insertion part (14), and locking assembly is equipped on connecting frame (1). The locking assembly includes the empty slot (2) in the inner wall of connecting frame (1), the inside of empty slot (2) is inserted with movable block (3), the inner side wall of movable block (3) is fixedly connected with horizontal strip (4), the screw hole of horizontal strip (4) is screw-connected with threaded rod (5), one end of threaded rod (5) is connected with end block (7), end block (7) is movably connected in the rotation slot reserved in the upper end surface of connecting frame (1), the lower end surface of movable block (3) is fixedly connected with two embedding blocks (8) symmetrically. The other end of threaded rod (5) is fixedly connected with connecting rod (6), and the end, away from threaded rod (5), of connecting rod (6) is movably connected with empty slot (2).

2. The connecting structure of the fabricated cement pavement slab according to claim 1, characterized in that: The inside of empty slot (2) is connected with first spring, the free end of first spring is connected with horizontal strip (4), and first spring is sleeved on the outside of threaded rod (5) symmetrically.

3. The prefabricated cement pavement panel connecting structure according to claim 1, characterized in that: The first connecting block (91) and the second connecting block (92) of the stretching assembly (9) are connected to the opposite outer walls of the two adjacent connecting frames (1) by bolts.

4. The prefabricated cement concrete pavement panel connecting structure according to claim 1, characterized in that: The stretching assembly (9) further includes a horizontal rod (93) fixedly connected to the surface wall of the first connecting block (91), a movable rod (94) inserted into the rod slot formed in the inside of the horizontal rod (93), and one end of the movable rod (94) is fixedly connected with the second connecting block (92).

5. The prefabricated cement concrete pavement panel connecting structure according to claim 4, characterized in that: The outer surface wall of the movable rod (94) and inside the rod slot of the horizontal rod (93) are fixedly connected with a sliding block (95), the outer surface wall of the horizontal rod (93) is provided with a sliding groove (96) matched with the sliding block (95), and the protruding part of the sliding block (95) is embedded in the inside of the sliding groove (96).

6. The prefabricated cement concrete pavement panel connecting structure according to claim 5, characterized in that: One end of the sliding block (95) is connected with a second spring, and the second spring is sleeved on the outside of the movable rod (94).

7. The prefabricated cement concrete pavement panel connecting structure according to claim 6, characterized in that: ​

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