Building heat preservation prefabricated part

Abstract

The utility model relates to a building heat preservation prefabricated component, which belongs to the technical field of prefabricated components and comprises a first prefabricated concrete component with an upper opening, a heat preservation plate positioned in the first prefabricated concrete component and a second prefabricated concrete component covering the opening of the first prefabricated concrete component, a dovetail strip is detachably connected to the top face of the first prefabricated concrete member, a dovetail groove connected with the dovetail strip in a sliding mode is formed in the bottom face of the second prefabricated concrete member, a locking assembly is embedded in the second prefabricated concrete member, and the locking end of the locking assembly is locked on the dovetail strip. And the second precast concrete member is fixed at the upper opening of the first precast concrete member. The effect of improving the heat preservation performance of the prefabricated part is achieved.

Description

Technical Field

[0001] This application relates to the technical field of precast components, and in particular to a building thermal insulation precast component. Background Art

[0002] Precast components, also known as precast concrete components, refer to concrete components prefabricated in factories or specific sites, which are then transported to construction sites for assembly.

[0003] Existing precast components often use the combination of steel bars and concrete to enhance the strength of the structure.

[0004] However, the above related technologies have the following problems: Precast components using the combination of steel bars and concrete have relatively poor thermal insulation effects. In this regard, further improvements are needed. Utility Model Content

[0005] In order to improve the thermal insulation performance of precast components, this application provides a building thermal insulation precast component.

[0006] A building thermal insulation precast component provided by this application adopts the following technical solution:

[0007] A building thermal insulation precast component includes a first precast concrete component with an opening at the top, a thermal insulation board positioned inside the first precast concrete component, and a second precast concrete component covering the opening of the first precast concrete component. A dovetail bar is detachably connected to the top surface of the first precast concrete component. A dovetail groove for slidably connecting with the dovetail bar is formed on the bottom surface of the second precast concrete component. A locking assembly is embedded inside the second precast concrete component, and the locking end of the locking assembly locks onto the dovetail bar to fix the second precast concrete component at the upper opening of the first precast concrete component.

[0008] By adopting the above technical solution, the thermal insulation board is placed inside the first precast concrete component, and the dovetail bar is installed on the first precast concrete component, so that the dovetail bar slides with the dovetail groove until the locking end of the locking assembly locks onto the dovetail bar to fix the second precast concrete component at the upper opening of the first precast concrete component. Due to the presence of the thermal insulation board, the thermal insulation performance of the precast component is improved.

[0009] Preferably, a fixing sleeve is embedded on one side of the top surface of the first precast concrete component. A fixing component for connecting with the fixing sleeve is arranged on the dovetail bar, and the fixing end of the fixing component is connected to the fixing sleeve to fix the dovetail bar on one side of the top surface of the first precast concrete component.

[0010] By adopting the above technical solution, the fixed end of the fixing component is connected to the fixing sleeve, thereby fixing the dovetail bar on one side of the top surface of the first precast concrete member, realizing the detachable connection between the dovetail bar and the first precast concrete member.

[0011] Preferably, the fixing component includes a plugging sleeve fixedly connected to the bottom surface of the dovetail bar and inserted and matched with the fixing sleeve, a screw rod threadedly connected to the dovetail bar, a butting head fixedly connected to the bottom end of the screw rod and located inside the plugging sleeve, a connecting rod fixed inside the plugging sleeve, an elastic piece arranged on the connecting rod, and a fixing block arranged on the elastic piece. A fixing groove corresponding to the position of the fixing block is formed on the fixing sleeve. The butting head abuts against the elastic piece so that the fixing block is inserted and matched with the fixing groove.

[0012] By adopting the above technical solution, rotate the screw rod so that the screw rod drives the butting head to extend to the opening of the elastic piece and abut against the elastic piece. At this time, the elastic piece expands outwards. Driven by the elastic piece, one end of the fixing block away from the elastic piece passes through the plugging sleeve and extends outside the plugging sleeve, and the end of the fixing block extending outside the plugging sleeve is inserted and matched with the fixing groove, thereby fixing the plugging sleeve on the fixing sleeve so that the dovetail bar is fixed on the top surface of the first precast concrete member.

[0013] Preferably, the locking component includes a locking sleeve embedded inside the second precast concrete member, a threaded sleeve threadedly connected inside the locking sleeve, a spring vertically fixed on the inner top wall of the threaded sleeve, a blocking block slidably connected inside the threaded sleeve and abutting against the bottom end of the spring, and a locking block fixedly connected to the bottom end of the blocking block and extending outside the threaded sleeve. One end of the locking block away from the blocking block extends into the dovetail groove. A locking groove inserted and matched with the locking block is formed on the top surface of the dovetail bar.

[0014] By adopting the above technical solution, when the locking block abuts against the end of the dovetail bar, the locking block slides into the threaded sleeve and compresses the spring. When the locking block corresponds to the position of the locking groove, under the reset action of the spring, the locking block is inserted and matched with the locking groove, thereby locking the second precast concrete member on the dovetail bar.

[0015] Preferably, the cross section of the locking block is wedge-shaped, and the blocking block is arranged as a circle and can rotate inside the threaded sleeve so that the inclined surface of the locking block can always face the end of the dovetail bar.

[0016] By adopting the above technical solution, the wedge-shaped locking block facilitates the locking block to slide into the threaded sleeve, and the blocking block can rotate inside the threaded sleeve so that the inclined surface of the locking block can always face the end of the dovetail bar.

[0017] Preferably, a turntable is fixedly connected to the top end of the screw rod.

[0018] By adopting the above technical solution, the setting of the turntable facilitates the rotation of the screw rod.

[0019] Preferably, a receiving groove for receiving the turntable is formed in the top surface of the dovetail bar, and a first inner hexagonal groove is formed in the top surface of the turntable.

[0020] By adopting the above technical solution, the setting of the receiving groove is used to receive the turntable, so that the turntable does not affect the sliding connection between the dovetail bar and the dovetail groove, and the turntable located in the receiving groove can be rotated by an inner hexagonal wrench.

[0021] Preferably, a positioning rod is provided on the inner bottom wall of the first precast concrete member, and a positioning groove inserted and matched with the positioning rod is formed on the bottom surface of the insulation board.

[0022] By adopting the above technical solution, the insertion and matching of the positioning rod and the positioning groove are used to position the insulation board inside the first precast concrete member.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Place the insulation board inside the first precast concrete member, and install the dovetail bar on the first precast concrete member, so that the dovetail bar slides with the dovetail groove until the locking end of the locking assembly locks on the dovetail bar, so that the second precast concrete member is fixed at the upper opening of the first precast concrete member. Due to the presence of the insulation board, the heat preservation performance of the precast member is improved;

[0025] 2. Rotate the screw rod so that the screw rod drives the abutting head to extend to the opening of the elastic piece and abut against the elastic piece. At this time, the elastic piece expands outward. Driven by the elastic piece, the end of the fixing block away from the elastic piece passes through the insertion sleeve and extends outside the insertion sleeve, and the end of the fixing block extending outside the insertion sleeve is inserted and matched with the fixing groove, thereby fixing the insertion sleeve on the fixing sleeve, so that the dovetail bar is fixed on the top surface of the first precast concrete member;

[0026] 3. When the locking block abuts against the end of the dovetail bar, the locking block slides into the threaded sleeve and compresses the spring. When the locking block corresponds to the locking groove, under the reset action of the spring, the locking block is inserted and matched with the locking groove, thereby locking the second precast concrete member on the dovetail bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall exploded view of the present application.

[0028] Figure 2 is the overall sectional view of the present application.

[0029] Figure 3 is Figure 2 the partial enlarged view of part A in

[0030] Figure 4 is Figure 2 A partial enlarged view of part B in

[0031] Description of reference numerals in the drawings: 1. First precast concrete member; 11. Dovetail bar; 111. Accommodating groove; 112. Locking groove; 12. Positioning rod; 13. Fixed sleeve; 131. Fixed groove; 2. Thermal insulation board; 3. Second precast concrete member; 31. Dovetail groove; 4. Insertion sleeve; 41. Screw; 411. Turntable; 412. First hexagonal socket; 42. Contact head; 43. Connecting rod; 44. Elastic piece; 45. Fixed block; 5. Locking sleeve; 51. Threaded sleeve; 52. Spring; 53. Stop block; 54. Locking block. Detailed implementation manners

[0032] The following further describes the present application in detail with reference to the Figures 1-4 accompanying drawings.

[0033] An embodiment of the present application discloses a building thermal insulation precast member. Referring to Figure 1 and Figure 2 , the building thermal insulation precast member includes a first precast concrete member 1 with an upper opening, a thermal insulation board 2 positioned in the first precast concrete member 1, and a second precast concrete member 3 covering the opening of the first precast concrete member 1; dovetail bars 11 are detachably connected to both sides of the top surface of the first precast concrete member 1, dovetail grooves 31 are formed on the bottom surface of the second precast concrete member 3, the number of the dovetail grooves 31 is the same as and corresponds one by one to the number of the dovetail bars 11, the dovetail bars 11 are slidably connected to the correspondingly positioned dovetail grooves 31, and the dovetail grooves 31 are grooves with one end open and the other end closed; a locking component is embedded in the second precast concrete member 3, and the locking end of the locking component locks on the dovetail bar 11 to fix the second precast concrete member 3 at the upper opening of the first precast concrete member 1.

[0034] Referring to Figure 1 and Figure 2 , four positioning rods 12 distributed in a rectangle are integrally formed on the inner bottom wall of the first precast concrete member 1, positioning grooves are formed on the bottom surface of the thermal insulation board 2, the number of the positioning grooves is the same as and corresponds one by one to the number of the positioning rods 12; when the thermal insulation board 2 is placed in the hollow part of the first precast concrete member 1, the correspondingly positioned positioning rods 12 are inserted into the positioning grooves in a matching manner to position the thermal insulation board 2 in the first precast concrete member 1; and the top surface of the thermal insulation board 2 is flush with the upper opening of the first precast concrete member 1 so that the second precast concrete member 3 can cover the upper opening of the first precast concrete member 1. In this embodiment, the thermal insulation board 2 is a polyurethane foam board with excellent thermal insulation performance and high mechanical strength.

[0035] Referring toFigure 2 and Figure 3 , on one side of the top surface of the first precast concrete member 1, a fixing sleeve 13 is embedded. The fixing sleeve 13 is a hollow cylinder with an opening at the top, and the top end of the fixing sleeve 13 is flush with the top surface of the first precast concrete member 1; a fixing component for connecting with the fixing sleeve 13 is arranged on the dovetail bar 11. The fixed end of the fixing component is connected with the fixing sleeve 13 to fix the dovetail bar 11 on one side of the top surface of the first precast concrete member 1.

[0036] Refer to Figure 2 and Figure 3 , the fixing component includes a plugging sleeve 4 fixedly connected to the bottom surface of the dovetail bar 11 and in plugging fit with the fixing sleeve 13, a screw rod 41 vertically penetrating the dovetail bar 11 and threadedly connected with the dovetail bar 11, a butting head 42 fixedly connected to the bottom end of the screw rod 41 and located inside the plugging sleeve 4, a connecting rod 43 fixed inside the plugging sleeve 4, an elastic piece 44 arranged on the connecting rod 43, and a fixing block 45 arranged on the elastic piece 44; the butting head 42 is frustum-shaped, and the end with a smaller cross-sectional area of the butting head 42 faces the elastic piece 44; the cross-section of the elastic piece 44 is V-shaped and its opening faces the butting head 42. The circumferential side of the connecting rod 43 is fixedly connected to the inner side of the elastic piece 44, and the connecting rod 43 is located at the end of the elastic piece 44 away from the butting head 42. The fixing block 45 is fixedly connected to the outer side of the elastic piece 44, and the fixing block 45 is located at the end of the elastic piece 44 close to the butting head 42; a fixing groove 131 corresponding to the position of the fixing block 45 is formed on the fixing sleeve 13.

[0037] Thus, rotate the screw rod 41 to drive the butting head 42 to extend to the opening of the elastic piece 44 and abut against the elastic piece 44. At this time, the elastic piece 44 expands outward. Driven by the elastic piece 44, the end of the fixing block 45 away from the elastic piece 44 passes through the plugging sleeve 4 and extends outside the plugging sleeve 4, and the end of the fixing block 45 extending outside the plugging sleeve 4 is in plugging fit with the fixing groove 131, so as to fix the plugging sleeve 4 on the fixing sleeve 13 and fix the dovetail bar 11 on the top surface of the first precast concrete member 1.

[0038] To facilitate the rotation of the screw rod 41, a turntable 411 is fixedly connected to the top end of the screw rod 41; the turntable 411 is disc-shaped, and a receiving groove 111 for receiving the turntable 411 is formed on the top surface of the dovetail bar 11. When the turntable 411 is rotated into the receiving groove 111, the top surface of the turntable 411 is flush with the top surface of the dovetail bar 11, so that the turntable 411 does not affect the sliding connection between the dovetail bar 11 and the dovetail groove 31. At the same time, in order to be able to rotate the turntable 411 located in the receiving groove 111, a first internal hexagonal groove 412 is formed on the top surface of the turntable 411, and the turntable 411 located in the receiving groove 111 can be rotated by an internal hexagonal wrench.

[0039] In order to enable the plugging sleeve 4 to be fixed more firmly on the fixed sleeve 13, two fixing blocks 45 are provided. The two fixing blocks 45 are symmetrically arranged outside the elastic piece 44. The number of the fixing grooves 131 is the same as that of the fixing blocks 45 and they correspond one by one. Two groups of fixing components are provided on the same dovetail bar 11. The two groups of fixing components are symmetrically arranged on the dovetail bar 11. The number of the fixed sleeves 13 is the same as that of the fixing components and they correspond one by one.

[0040] Referring to Figure 2 and Figure 4 , the locking component includes a locking sleeve 5 embedded in the second precast concrete member 3, a threaded sleeve 51 threadedly connected in the locking sleeve 5, a spring 52 vertically fixed on the inner top wall of the threaded sleeve 51, a stopper 53 slidably connected in the threaded sleeve 51 and abutting against the bottom end of the spring 52, and a locking block 54 fixedly connected to the bottom end of the stopper 53 and extending outside the threaded sleeve 51; one end of the locking block 54 away from the stopper 53 extends into the dovetail groove 31, and a locking groove 112 inserted and matched with the locking block 54 is formed on the top surface of the dovetail bar 11.

[0041] Referring to Figure 2 and Figure 4 , the locking sleeve 5 is a hollow cylinder with an open bottom and a cylindrical shape. The threaded sleeve 51 is a hollow cylinder with an open bottom and a cylindrical shape. A limiting portion extends radially at the open bottom of the threaded sleeve 51. The limiting portion is used to limit the stopper 53 so that the stopper 53 cannot fall off from the threaded sleeve 51; the cross section of the locking block 54 is wedge-shaped, and the contour of the locking groove 112 matches the contour of the locking block 54. When the inclined surface of the locking block 54 abuts against the end of the dovetail bar 11, the wedge-shaped locking block 54 facilitates the sliding of the locking block 54 into the threaded sleeve 51. The stopper 53 is a circular block so that the stopper 53 can rotate in the threaded sleeve 51, so that the inclined surface of the locking block 54 can always face the end of the dovetail bar 11.

[0042] In order not to affect the sliding connection between the dovetail bar 11 and the dovetail groove 31, when the threaded sleeve 51 is threadedly connected in the locking sleeve 5, the bottom surface of the threaded sleeve 51 and the bottom surface of the locking sleeve 5 are flush with the inner top wall of the dovetail groove 31. At the same time, in order to facilitate the rotation of the threaded sleeve 51 located in the locking sleeve 5, two symmetrically arranged second internal hexagonal holes are formed at the bottom end of the threaded sleeve 51. By inserting two internal hexagonal wrenches into the two second internal hexagonal holes respectively, and then rotating the two internal hexagonal wrenches simultaneously, the threaded sleeve 51 located in the locking sleeve 5 can be rotated.

[0043] The implementation principle of a building thermal insulation precast component in an embodiment of this application is as follows: Both the first precast concrete component 1 and the second precast concrete component 3 can be precast according to requirements. Place the insulation board 2 inside the first precast concrete component 1 and position the insulation board 2 through the positioning rod 12; Rotate the screw rod 41 so that the screw rod 41 drives the abutting head 42 to extend to the opening of the elastic piece 44 and abut against the elastic piece 44. At this time, the elastic piece 44 expands outwards. Driven by the elastic piece 44, the end of the fixing block 45 away from the elastic piece 44 passes through the insertion sleeve 4 and extends outside the insertion sleeve 4, and the end of the fixing block 45 extending outside the insertion sleeve 4 is in plug-in fit with the fixing groove 131, thereby fixing the insertion sleeve 4 on the fixing sleeve 13, so that the dovetail bar 11 is fixed on the top surface of the first precast concrete component 1; Make the dovetail bar 11 be in sliding connection with the dovetail groove 31. When the locking block 54 abuts against the end of the dovetail bar 11, the locking block 54 slides into the threaded sleeve 51 and compresses the spring 52. When the locking block 54 corresponds to the locking groove 112, under the reset action of the spring 52, the locking block 54 is in plug-in fit with the locking groove 112, thereby locking the second precast concrete component 3 on the dovetail bar 11, and further fixing the insulation board 2 on the first precast concrete component 1 and the second precast concrete component 3.

[0044] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A prefabricated building insulation component, characterized in that: The invention comprises a first precast concrete component (1) with an upper opening, a heat-insulating plate (2) positioned in the first precast concrete component (1), and a second precast concrete component (3) covering the opening of the first precast concrete component (1), wherein the top surface of the first precast concrete component (1) is detachably connected to a dovetail bar (11), the bottom surface of the second precast concrete component (3) is provided with a dovetail groove (31) slidably connected to the dovetail bar (11), a locking component is pre-buried inside the second precast concrete component (3), and the locking end of the locking component is locked on the dovetail bar (11) so that the second precast concrete component (3) is fixed at the upper opening of the first precast concrete component (1).

2. A prefabricated building insulation component according to claim 1, characterized in that: A fixing sleeve (13) is pre-buried on one side of the top surface of the first precast concrete component (1); a fixing assembly connected to the fixing sleeve (13) is provided on the dovetail bar (11); a fixing end of the fixing assembly is connected to the fixing sleeve (13) so as to fix the dovetail bar (11) on one side of the top surface of the first precast concrete component (1).

3. A prefabricated building insulation component according to claim 2, characterized in that: The fixing assembly comprises a plug-in sleeve (4) fixedly connected to the bottom surface of the dovetail strip (11) and plugged with the fixing sleeve (13), a screw rod (41) threadedly connected to the dovetail strip (11), an abutment head (42) fixedly connected to the bottom end of the screw rod (41) and located inside the plug-in sleeve (4), a connecting rod (43) fixed inside the plug-in sleeve (4), a spring sheet (44) arranged on the connecting rod (43), and a fixing block (45) arranged on the spring sheet (44); a fixing groove (131) corresponding to the position of the fixing block (45) is provided on the fixing sleeve (13); the abutment head (42) abuts against the spring sheet (44) so ​​that the fixing block (45) is plugged with the fixing groove (131).

4. The prefabricated building insulation component according to claim 1, characterized in that: The locking assembly comprises a locking sleeve (5) pre-buried in the second precast concrete component (3), a threaded sleeve (51) threadedly connected in the locking sleeve (5), a spring (52) vertically fixed to the top wall of the threaded sleeve (51), a stopper (53) slidably connected in the threaded sleeve (51) and abutting against the bottom end of the spring (52), and a locking block (54) fixedly connected to the bottom end of the stopper (53) and extending outside the threaded sleeve (51), wherein one end of the locking block (54) away from the stopper (53) extends into the dovetail groove (31), and a locking groove (112) pluggably matched with the locking block (54) is provided on the top surface of the dovetail strip (11).

5. A prefabricated building insulation component according to claim 4, characterized in that: The locking block (54) has a wedge-shaped cross section, and the stopper (53) is circular and can rotate in the threaded sleeve (51), so that the inclined surface of the locking block (54) can always face the end of the dovetail strip (11).

6. The prefabricated building insulation component according to claim 3, characterized in that: A rotating disk (411) is fixedly connected to the top end of the screw rod (41).

7. A prefabricated building insulation component according to claim 6, characterized in that: The top surface of the dovetail strip (11) is provided with a receiving groove (111) for receiving the rotating disk (411), and the top surface of the rotating disk (411) is provided with a first hexagonal inner groove (412).

8. The prefabricated building insulation component according to claim 1, characterized in that: The inner bottom wall of the first precast concrete component (1) is provided with a positioning rod (12), and the bottom surface of the thermal insulation board (2) is provided with a positioning groove which is plugged into and matched with the positioning rod (12).

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