Fabricated concrete box and connecting device thereof

Abstract

The utility model provides an assembly type concrete box and a connecting device thereof, and relates to the field of assembly type constructions.The connecting device is used for connecting two adjacent assembly type concrete boxes, the connecting device comprises a first box body, a second box body, a guide rod and a lock head assembly, the first box body is provided with an insertion hole, and the lock head assembly comprises a lock head end; the guide rod is sleeved with the lock head assembly so that the lock head end can penetrate through the inserting hole to be inserted into the first box body, the lock head end is located at the locking position to lock the relative position of the first box body and the second box body, or the lock head end is located at the unlocking position to lock the relative position of the first box body and the second box body. The lock end is used for rotating around the guide rod between the locking position and the unlocking position, the connecting device completes disassembly and assembly of the two fabricated concrete boxes by switching the position of the lock end in the first box body, the disassembly and assembly period is shortened, the disassembly and assembly difficulty is small, and the disassembly and assembly efficiency is improved. And the disassembly and assembly efficiency of the assembly type concrete box is improved.

Description

Technical Field

[0001] The present application relates to the field of prefabricated buildings, and in particular to a prefabricated concrete box and a connecting device thereof. Background Art

[0002] Compared with traditional buildings that have long construction periods, serious environmental pollution, and a shortage of construction workers, prefabricated buildings are manufactured in factories using prefabricated components and assembled on-site, which shortens the construction period, improves construction efficiency, and reduces construction costs.

[0003] Existing prefabricated concrete buildings still use the traditional structural system. When the prefabricated concrete buildings are transported to the site for hoisting and splicing, concrete needs to be poured for fixed connection. However, the concrete pouring fixation method has a long splicing cycle and is inconvenient to disassemble after splicing, which reduces the construction efficiency. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the present application provides an assembled concrete box and a connecting device thereof.

[0005] In a first aspect, the present application provides a connection device, which is used to connect two adjacent prefabricated concrete boxes. The connection device includes: a first box body, a second box body, a guide rod and a locking assembly. The first box body is arranged on the first end of the prefabricated concrete box, and the first box body has a socket. The second box body is arranged on the second end of the prefabricated concrete box. The guide rod is sleeved in the second box body. The locking assembly includes a locking end, which is sleeved on the guide rod so that the locking end passes through the socket and is inserted into the first box body. The locking end is located in a locking position to lock the relative position of the first box body and the second box body, or the locking end is located in an unlocking position, and the locking end is used to rotate around the guide rod between the locking position and the unlocking position.

[0006] In combination with the first aspect, in a possible embodiment, a through hole is provided on the second box body, and the lock assembly includes: a lock, a connecting piece and a limiting piece, the lock end is located on the lock, and the shape of the lock matches the shape of the socket, the connecting piece is provided at an end of the lock close to the guide rod, the connecting piece passes through the through hole and is sleeved on the guide rod, the connecting piece is used to rotate around the guide rod and move along the guide rod, the length of the connecting piece along the first direction is less than the length of the lock along the first direction, the limiting piece is provided at an end of the connecting piece away from the lock, and the limiting piece is used to limit the displacement of the connecting piece relative to the guide rod.

[0007] In combination with the first aspect, in a possible implementation, a cross-sectional area of ​​the lock head along the first direction is less than or equal to an area of ​​the insertion hole, and a length of the insertion hole along the first direction is less than a length of the insertion hole along a second direction, and the second direction is perpendicular to the first direction.

[0008] In combination with the first aspect, in a possible implementation, a thread groove is provided on the connecting member, a first thread is provided on the inner wall of the thread groove, the guide rod includes a threaded end, the guide rod is inserted into the thread groove so that the threaded end is located in the thread groove, a second thread is provided on the threaded end, and the second thread matches the first thread.

[0009] In combination with the first aspect, in a possible embodiment, the first box body has a first contact surface, which is located at an end of the first box body close to the insertion hole, the second box body has a second contact surface, which is located at an end of the second box body close to the through hole, a slot is provided in the second box body, the guide rod is inserted in the slot, and the slot has a third contact surface, which is located at an end of the slot away from the through hole.

[0010] In combination with the first aspect, in a possible implementation manner, the guide rod is used to move axially so that the limiting member abuts against the second contact surface and the connecting member moves in a direction close to the guide rod.

[0011] In combination with the first aspect, in a possible implementation, the guide rod is used to move axially so that the lock head abuts against the first contact surface, and the guide rod abuts against the third contact surface, and the connecting member moves in a direction away from the guide rod.

[0012] In combination with the first aspect, in a possible implementation, the connecting device further includes: a driving member, the driving member is disposed in the second box body, the driving member is connected to the guide rod, and the driving member is used to drive the guide rod to move axially.

[0013] In combination with the first aspect, in a possible implementation, the guide rod further includes: a serrated end, the serrated end is located at an end of the guide rod away from the limiting member, a rack is provided on the serrated end, and the driving member is meshingly connected to the serrated end.

[0014] In a second aspect, the present application provides an assembled concrete box, comprising the above-mentioned connecting device.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The connection device provided by the present application is characterized in that the first box is arranged on the first end of the assembled concrete box, the second box is arranged on the second end of the assembled concrete box, the lock assembly is sleeved on the guide rod, so that the lock end passes through the insertion hole and is inserted into the first box, and the lock end inserted into the first box is located in a locked position or an unlocked position, so as to lock the relative position of the first box and the second box, or release the lock of the relative position of the first box and the second box, and in addition, the lock end can rotate around the guide rod between the locked position and the unlocked position, so as to switch the disassembly and assembly state of the two adjacent assembled concrete boxes. Compared with fixing the assembled concrete box by pouring concrete, the connection device shortens the disassembly and assembly cycle by assembling the first box and the second box on the two adjacent assembled concrete boxes, and completes the disassembly and assembly of the two assembled concrete boxes by switching the position of the lock end in the first box, and the disassembly and assembly efficiency of the assembled concrete box is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of an assembled concrete box is shown;

[0019] Figure 2 Shows Figure 1 The enlarged schematic diagram of the middle A part;

[0020] Figure 3 An exploded schematic diagram of the connection device is shown;

[0021] Figure 4 A schematic cross-sectional structure diagram of a first box body of the connecting device is shown;

[0022] Figure 5 A schematic cross-sectional structure diagram showing a locking head of a connecting device in a locked position;

[0023] Figure 6 A schematic cross-sectional structure diagram of a connection device with a lock head in an unlocked position is shown.

[0024] Description of main component symbols:

[0025] 100-first housing; 110-insertion hole; 120-first contact surface; 200-second housing; 210-through hole; 220-second contact surface; 230-slot; 231-third contact surface; 300-guide rod; 310-threaded end; 320-serrated end; 321-rack; 400-lock assembly; 410-lock; 411-lock end; 420-connector; 421-threaded groove; 430-limiting member; 500-driving member; 600-insertion strip; 700-assembled concrete box. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In the present application, 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”, and “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”, and “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.

[0031] Embodiment 1

[0032] See also Figure 2 and Figure 4 The embodiment of the present application provides a connection device, which is used to connect two adjacent prefabricated concrete boxes 700, and includes: a first box body 100, a second box body 200, a guide rod 300 and a lock assembly 400. The first box body 100 is disposed on the first end of the prefabricated concrete box 700, and the first box body 100 has a plug hole 110. The second box body 200 is disposed on the second end of the prefabricated concrete box 700. The guide rod 300 is sleeved in the second box body 200. The lock assembly 400 includes a lock end 411, which is sleeved on the guide rod 300 so that the lock end 411 passes through the insertion hole 110 and is inserted into the first box body 100, and the lock end 411 is located in a locking position to lock the relative position of the first box body 100 and the second box body 200, or the lock end 411 is located in an unlocking position, and the lock end 411 is used to rotate around the guide rod 300 between the locking position and the unlocking position. The lock end 411 inserted into the first box body 100 is located in the locking position or the unlocking position to lock the relative position of the first box body 100 and the second box body 200, or to release the relative position of the first box body 100 and the second box body 200, and the lock end 411 can rotate around the guide rod 300 between the locking position and the unlocking position, so as to switch the disassembly and assembly state of the two adjacent assembled concrete boxes 700. Compared with fixing the prefabricated concrete box 700 by pouring concrete, the connecting device assembles the first box body 100 and the second box body 200 on two adjacent prefabricated concrete boxes 700, and completes the disassembly and assembly of the two prefabricated concrete boxes 700 by switching the position of the lock end 411 in the first box body 100, thereby shortening the disassembly and assembly cycle, reducing the difficulty of disassembly, and improving the disassembly and assembly efficiency of the prefabricated concrete box 700.

[0033] In some embodiments, the first end and the second end are arranged opposite to each other. The first box 100 is arranged at a corner on the first end, and the first box 100 is connected to the assembled concrete box 700 through anchor bars. The second box 200 is arranged at a corner of the second end, and the second box 200 is connected to the assembled concrete box 700 through anchor bars.

[0034] In some embodiments, the first box 100 is prismatic and has a first opening. The second box 200 is prismatic and has a second opening. The second opening is oriented in the same direction as the first opening.

[0035] In other embodiments, the first box body 100 and the second box body 200 may also be cylindrical.

[0036] See also Figure 2 and Figure 3 In some embodiments, the first housing 100 has a first contact surface 120. The first contact surface 120 is located at one end of the first housing 100 close to the insertion hole 110. The second housing 200 is provided with a through hole 210. The through hole 210 is located in the second housing 200 close to the through hole 210 and is circular. The second housing 200 has a second contact surface 220, and the second contact surface 220 is located at one end of the second housing 200 close to the through hole 210. A slot 230 is provided in the second housing 200. The guide rod 300 is inserted into the slot 230. The slot 230 has a third contact surface 231, and the third contact surface 231 is located at one end of the slot 230 away from the through hole 210.

[0037] See also Figure 3 and Figure 4 In some embodiments, the connection device further includes a driving member 500. The driving member 500 is disposed in the second box body 200 and connected to the guide rod 300, and the driving member 500 is used to drive the guide rod 300 to move axially.

[0038] In some embodiments, the guide rod 300 includes a threaded end 310 and a serrated end 320. The threaded end 310 is located at one end of the guide rod 300 close to the through hole 210. The lock assembly 400 is sleeved on the threaded end 310. The serrated end 320 is located at one end of the guide rod 300 close to the slot 230. A rack 321 is provided on the serrated end 320. The driving member 500 is meshedly connected with the serrated end 320, and the driving member 500 is used to rotate to drive the serrated end 320 to move, so that the guide rod 300 moves axially.

[0039] In some embodiments, the driving member 500 includes a wrench portion, a first rotating portion and a gear portion. The first rotating portion is rotatably disposed in the second box body 200, and the first rotating portion connects the wrench portion and the gear portion. The gear portion is meshed and connected with the sawtooth end 320. The wrench portion is pushed to drive the first rotating portion to rotate, and the gear portion is rotated synchronously, thereby driving the guide rod 300 to move axially.

[0040] See also Figure 4 and Figure 5 In some embodiments, the lock assembly 400 includes: a lock 410, a connector 420 and a stopper 430. The lock end 411 is located on the lock 410. The cross-sectional shape of the lock 410 along the first direction matches the shape of the jack 110. The connector 420 is disposed at one end of the lock 410 close to the guide rod 300. The connector 420 passes through the through hole 210 and is sleeved on the guide rod 300. The connector 420 is used to rotate around the guide rod 300 and move along the guide rod 300. The length of the connector 420 along the first direction is less than the length of the lock 410 along the first direction. The stopper 430 is disposed at one end of the connector 420 away from the lock 410. The stopper 430 is used to limit the displacement of the connector 420 relative to the guide rod 300.

[0041] In some embodiments, the lock head 410 includes a conical portion and a cylindrical portion. The cross-sectional shape of the cylindrical portion along the first direction matches the shape of the insertion hole 110, and the cross-sectional area of ​​the cylindrical portion along the first direction is less than or equal to the area of ​​the insertion hole 110, so that the lock head 410 can pass through the insertion hole 110.

[0042] In some embodiments, the plug hole 110 includes a first side and a second side. The first side is a straight line. The second side is an arc, and the length of the second side along the first direction is less than the length of the first side along the second direction. The second direction is perpendicular to the first direction.

[0043] See also Figure 4 and Figure 5 In some embodiments, the connecting member 420 is cylindrical, the length of the connecting member 420 along the first direction is less than the length of the through hole 210 along the first direction, and a thread groove 421 is provided on the connecting member 420. The thread groove 421 is arranged along the axial direction of the connecting member 420, and the direction of the notch of the thread groove 421 is parallel to the axial direction of the guide rod 300, and a first thread is provided on the inner wall of the thread groove 421. A second thread is provided on the thread end 310. The guide rod 300 is inserted into the thread groove 421 so that the thread end 310 is located in the thread groove 421. The second thread matches the first thread so that the guide rod 300 is threadedly connected to the connecting member 420.

[0044] See also Figure 2 and Figure 4 In some embodiments, the first box body 100 has a first contact surface 120, and the first contact surface 120 is located at one end of the first box body 100 close to the plug hole 110, the second box body 200 has a second contact surface 220, and the second contact surface 220 is located at one end of the second box body 200 close to the through hole 210, a slot 230 is provided in the second box body 200, the guide rod 300 is inserted in the slot 230, and the slot 230 has a third contact surface 231, and the third contact surface 231 is located at one end of the slot 230 away from the through hole 210.

[0045] In some embodiments, the wrench portion is pushed to move toward the direction close to the slot 230 so that the gear portion rotates counterclockwise, and the guide rod 300 is pushed to move along the axis and toward the direction close to the first box body 100, so that the limit member 430 abuts against the second contact surface 220, and the wrench portion is continuously pushed so that the limit member 430 is subjected to a reaction force from one end of the second box body 200 close to the through hole 210, so that the connecting member 420 rotates on the threaded end 310 to drive the locking head 410 to rotate, and the locking head 410 rotates to the locking position to lock the relative positions of the first box body 100 and the second box body 200, and during the process of the connecting member 420 rotating on the threaded end 310, the connecting member 420 moves toward the direction close to the slot 230.

[0046] See also Figure 5 and Figure 6In some embodiments, the connection device further includes: an insertion strip 600. The insertion strip 600 is disposed in the second box body 200 and is located at one end of the slot 230 close to the rack 321. The insertion strip 600 includes: an elastic portion, a second rotating portion, and an inserting portion. The second rotating portion is rotationally connected to the second box body 200, and the second rotating portion connects the elastic portion and the inserting portion. The elastic portion connects one end of the second box body 200 close to the slot 230. The inserting portion is inserted into the groove between the two racks 321, so that the elastic portion abuts against the second rotating portion, thereby limiting the movement of the serrated end 320 relative to the inserting slot.

[0047] In some embodiments, the elastic member is pressed to rotate the second rotating portion in a direction away from the serrated end 320 , so that the plug-in portion is disengaged from the groove to release the position limitation of the serrated end 320 .

[0048] In some embodiments, the wrench portion is pushed to move in a direction away from the slot 230 so that the gear portion rotates clockwise, and the guide rod 300 is pushed to move along the axis and in a direction away from the first box body 100, so that the lock head 410 abuts against the first contact surface 120, and the guide rod 300 abuts against the third contact surface 231, and the wrench portion is continuously pushed so that the lock head 410 is subjected to a reaction force from one end of the second box body 200 close to the through hole 210, so that the connecting member 420 rotates on the threaded end 310 to drive the lock head 410 to rotate, and the lock head 410 rotates to the unlocking position to release the lock of the relative position of the first box body 100 and the second box body 200, and during the process of the connecting member 420 rotating on the threaded end 310, the connecting member 420 moves in a direction away from the slot 230.

[0049] During the assembly process of the two adjacent assembled concrete boxes 700, the wrench part is pushed to move the wrench part toward the slot 230, so that the gear part rotates counterclockwise and drives the guide rod 300 to move along the axis and toward the first box body 100, so that the limit member 430 abuts against the second contact surface 220. After the limit member 430 is subjected to the reaction force of the second box body 200, the connecting member 420 rotates on the threaded end 310, so that the lock head 410 rotates to the locking position, thereby completing the assembly of the two adjacent assembled concrete boxes 700, and the plug-in part is inserted into the groove to further fix the position of the lock head 410. On the contrary, during the disassembly of the two adjacent assembled concrete boxes 700, the elastic part is first pressed to disengage the plug-in part from the groove, and then the wrench part is pushed to move the wrench part away from the slot 230. After the lock head 410 is subjected to the reaction force of the second box body 200, the connector 420 rotates on the threaded end 310 to drive the lock head 410 to rotate to the unlocking position. Compared with the fixing method using concrete pouring, the connection device completes the disassembly and assembly of the two assembled concrete boxes 700 by switching the position of the lock head 410 in the first box body 100, shortening the disassembly and assembly cycle, reducing the difficulty of disassembly, and improving the disassembly and assembly efficiency of the assembled concrete boxes 700.

[0050] Embodiment 2

[0051] See also Figure 1 and Figure 2 The embodiment of the present application provides an assembled concrete box 700, which includes the connecting device in any one of the above embodiments, and thus has all the beneficial effects of the connecting device in any one of the above embodiments, which will not be described one by one here.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A connecting device, used to connect two adjacent assembled concrete boxes, characterized in that: include: A first box body, the first box body is arranged on the first end of the assembled concrete box, and the first box body has a plug hole; A second box body, the second box body is arranged on the second end of the assembled concrete box; A guide rod, wherein the guide rod is sleeved in the second box body; A lock assembly, the lock assembly includes a lock end, the lock assembly is sleeved on the guide rod so that the lock end passes through the insertion hole and is inserted into the first box body, and the lock end is located in a locking position to lock the relative position of the first box body and the second box body, or the lock end is located in an unlocking position, and the lock end is used to rotate around the guide rod between the locking position and the unlocking position.

2. The connection device according to claim 1, characterized in that: The second box body is provided with a through hole, and the lock assembly comprises: A lock head, the lock head end is located on the lock head, and the shape of the lock head matches the shape of the socket; A connecting member, the connecting member is arranged at one end of the lock head close to the guide rod, the connecting member passes through the through hole and is sleeved on the guide rod, the connecting member is used to rotate around the guide rod and move along the guide rod, and the length of the connecting member along the first direction is less than the length of the lock head along the first direction; A limiting member, wherein the limiting member is arranged at an end of the connecting member away from the locking head, and the limiting member is used to limit the displacement of the connecting member relative to the guide rod.

3. The connection device according to claim 2, characterized in that: The cross-sectional area of ​​the lock head along the first direction is smaller than or equal to the area of ​​the insertion hole, and the length of the insertion hole along the first direction is smaller than the length of the insertion hole along the second direction, and the second direction is perpendicular to the first direction.

4. The connection device according to claim 2, characterized in that: The connecting member is provided with a thread groove, the inner wall of the thread groove is provided with a first thread, the guide rod includes a threaded end, the guide rod is inserted into the thread groove so that the threaded end is located in the thread groove, the threaded end is provided with a second thread, and the second thread matches the first thread.

5. The connection device according to claim 2, characterized in that: The first box body has a first contact surface, which is located at one end of the first box body close to the insertion hole, the second box body has a second contact surface, which is located at one end of the second box body close to the through hole, a slot is provided in the second box body, the guide rod is inserted in the slot, and the slot has a third contact surface, which is located at one end of the slot away from the through hole.

6. The connection device according to claim 5, characterized in that: The guide rod is used to move in the axial direction so that the limiting member abuts against the second contact surface and the connecting member moves in a direction close to the guide rod.

7. The connection device according to claim 5, characterized in that: The guide rod is used to move in the axial direction, so that the lock head abuts against the first contact surface, and the guide rod abuts against the third contact surface, and the connecting member moves in a direction away from the guide rod.

8. The connection device according to claim 2, characterized in that: The connecting device also includes: A driving member is disposed in the second box body and connected to the guide rod, and is used for driving the guide rod to move axially.

9. The connection device according to claim 8, characterized in that: The guide rod also includes: The sawtooth end is located at an end of the guide rod away from the limiting member, a rack is arranged on the sawtooth end, and the driving member is meshingly connected with the sawtooth end.

10. An assembled concrete box, characterized in that: The invention comprises a connecting device as claimed in any one of claims 1 to 9.

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