A precast composite slab support assembly

Abstract

This utility model relates to the field of support component technology, specifically a prefabricated composite slab support component, including a support rod and an extension rod. The support rod is slidably connected inside the extension rod, and a lead screw is threaded to the bottom of the support rod. A base is fixedly connected to the bottom of the lead screw. In this utility model, by changing the position of the insertion hole on the extension rod and corresponding to it, and inserting a pin into the insertion hole and its corresponding adjustment hole, and then placing a pin cap on one end of the pin, the locking block inside the fixing block is inserted into the slot on the pin under the action of the spring on the pull rod. This achieves rapid fixing of the support component after height adjustment. This fixing method also makes height adjustment of the support component simpler, faster, and more efficient. Simultaneously, by rotating the second handwheel, the support rod rotates, causing it to move up and down along the lead screw at its bottom, thereby allowing for precise height adjustment of the support component to meet usage requirements.

Description

Technical Field

[0001] This utility model relates to the field of support component technology, and in particular to a prefabricated composite slab support component. Background Technology

[0002] In the construction of prefabricated buildings, the installation of precast composite slabs requires the use of support components to ensure stable support and accurate installation position during the construction phase. Traditional precast composite slab support components often have many inconveniences in terms of height adjustment. For example, some adjustment methods are complicated to operate (such as fixing two parts of the support rod with bolts, and then removing the bolts to adjust the height of the support rod), requiring many tools and consuming a lot of time and manpower; some have low adjustment accuracy, which is difficult to meet the high-precision construction requirements, resulting in the flatness and elevation of the composite slabs after installation not meeting the design standards, thus affecting subsequent construction and the overall quality of the building. Utility Model Content

[0003] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a prefabricated composite slab support assembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated composite slab support assembly, including a support rod and an extension rod. The support rod is slidably connected inside the extension rod. A lead screw is threaded to the bottom of the support rod, and a base is fixedly connected to the bottom of the lead screw. A second handwheel is fixedly connected to the support rod near its bottom end, and a first handwheel is fixedly connected to the extension rod near its bottom end. A top support is provided at the top of the extension rod. Insertion holes and adjustment holes are respectively provided on the extension rod and the support rod. Pins are inserted into the insertion holes and corresponding adjustment holes. A pin cap is fitted at one end of the pin. A slot is formed on the surface of the pin. A fixing block is fixedly connected to the surface of the pin cap. A locking block is slidably connected inside the fixing block. The locking block can be inserted into the slot. A pull rod is fixedly connected to the end of the locking block away from the slot. The end of the pull rod away from the locking block passes through the fixing block. A spring is fitted on the surface of the pull rod. One end of the spring is fixedly connected to the locking block, and the other end of the spring is fixedly connected to the inner wall of the fixing block on the side away from the locking block.

[0005] Preferably, there are two locking blocks, which are symmetrically distributed on both sides of the center of the pin cap surface.

[0006] Preferably, a protective pad is fixedly connected to the pressing surface of the pin cap, and the protective pad is made of elastic rubber.

[0007] Preferably, the end of the pin inserted into the pin cap is provided with a first inclined surface, and the locking block is provided with a second inclined surface at the position corresponding to the first inclined surface.

[0008] Preferably, mounting holes are provided at the four corners of the surface of the base.

[0009] Preferably, the surface of the support rod is provided with a second guide rod, and the inner wall of the extension rod is provided with a second guide groove corresponding to the position of the second guide rod. The second guide rod is engaged inside the second guide groove. The surface of the pin is provided with a first guide groove, and the inner wall of the pin cap is fixedly connected to a first guide rod corresponding to the position of the first guide groove. The first guide rod is engaged inside the first guide groove.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, by changing the position of the insertion hole on the extension rod and the corresponding position on the extension rod, and inserting the pin into the insertion hole and the corresponding adjustment hole, and then putting the pin cap on one end of the pin, the locking block in the fixing block is inserted into the locking groove on the pin under the action of the spring on the pull rod, thus realizing the quick fixation of the support component after the height adjustment. This fixing method also makes the height adjustment of the support component simpler, faster and more efficient. At the same time, by rotating the second handwheel to drive the support rod to rotate, the support rod moves up and down along the screw at its bottom end, thereby making fine adjustment of the height of the support component to meet the usage requirements.

[0012] 2. In this utility model, the guide rod two on the surface of the support rod and the guide groove two on the inner wall of the extension rod cooperate with each other, and the guide groove one on the surface of the pin and the guide rod one on the inner wall of the pin cap cooperate with each other, which plays a precise guiding role. This allows the sliding of the support rod in the extension rod and the insertion and removal of the pin in the pin cap to proceed in a specific direction, avoiding rotation and other situations. This ensures that the insertion hole and adjustment hole, as well as the locking block and the locking slot, can always be quickly aligned, further improving the convenience of the pin entering and exiting the insertion hole and adjustment hole and the locking block being inserted into the locking slot. Attached Figure Description

[0013] Figure 1 A schematic diagram of the prefabricated composite slab support assembly proposed in this utility model;

[0014] Figure 2 An exploded view of the prefabricated composite slab support assembly is provided for this utility model;

[0015] Figure 3 A partially exploded view of the prefabricated composite slab support assembly is provided for this utility model.

[0016] Figure 4 A bottom view of the extension rod of the prefabricated composite slab support assembly proposed in this utility model.

[0017] Legend:

[0018] 1. Support rod; 2. Extension rod; 3. Top support; 4. Lead screw; 5. Base; 6. Mounting hole; 7. Insertion hole; 8. Pin; 9. Pin cap; 10. Fixing block; 11. Locking block; 12. Pull rod; 13. Spring; 14. Locking groove; 15. Inclined surface one; 16. Inclined surface two; 17. Guide rod one; 18. Guide groove one; 19. Guide rod two; 20. Guide groove two; 21. Adjustment hole; 22. Handwheel one; 23. Handwheel two; 24. Protective pad. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments.

[0020] Example 1: As Figure 1 one Figure 4 As shown, this utility model provides a technical solution: a precast composite slab support assembly, including a support rod 1 and an extension rod 2. The support rod 1 is slidably connected inside the extension rod 2. A lead screw 4 is threadedly connected to the bottom of the support rod 1, and a base 5 is fixedly connected to the bottom of the lead screw 4. A second handwheel 23 is fixedly connected to the support rod 1 near its bottom end, and a first handwheel 22 is fixedly connected to the extension rod 2 near its bottom end. A top support 3 is provided at the top of the extension rod 2. Insertion holes 7 and adjustment holes 21 are respectively provided on the extension rod 2 and the support rod 1. Pins 8 are inserted into the insertion holes 7 and the corresponding adjustment holes 21. A pin cap 9 is sleeved on one end of the pin 8. A groove 14 is provided on the surface of the pin 8. A fixing block 10 is fixedly connected to the surface of the pin cap 9, and a locking block 11 is slidably connected inside the fixing block 10. The locking block 11 can be inserted into the slot 14. The end of the locking block 11 away from the slot 14 is fixedly connected to the pull rod 12. The end of the pull rod 12 away from the locking block 11 passes through the fixing block 10. The surface of the pull rod 12 is fitted with a spring 13. One end of the spring 13 is fixedly connected to the locking block 11, and the other end of the spring 13 is fixedly connected to the inner wall of the fixing block 10 on the side away from the locking block 11. There are two locking blocks 11. The two locking blocks 11 are symmetrically distributed on both sides of the middle of the surface of the pin cap 9. The pressing surface of the pin cap 9 is fixedly connected with a protective soft pad 24. The protective soft pad 24 is made of elastic rubber. The end of the pin 8 inserted into the pin cap 9 is provided with a bevel 15. The locking block 11 is provided with a bevel 26 corresponding to the bevel 15. The four corners of the surface of the base 5 are provided with mounting holes 6.

[0021] In this embodiment, by changing the position of the insertion hole 7 on the extension rod 2 and the corresponding position on the extension rod 2, and inserting the pin 8 into the insertion hole 7 and the corresponding adjustment hole 21, and then putting the pin cap 9 on one end of the pin 8, the locking block 11 in the fixing block 10 is inserted into the slot 14 on the pin 8 under the action of the spring 13 on the pull rod 12, thus realizing the rapid fixation after the height adjustment of the support component. This fixing method also makes the height adjustment of the support component simpler, faster and more efficient. At the same time, by rotating the handwheel 23, the support rod 1 is driven to rotate, so that the support rod 1 moves up and down along the lead screw 4 at its bottom end, thereby making a fine adjustment of the height of the support component to meet the usage requirements. The two locking blocks 11 are symmetrically distributed on both sides of the middle part of the pin cap 9 surface, so that the pin 8 can be evenly stressed from both sides after being inserted into the pin cap 9, ensuring that the locking block 11 and the slot 14 on the pin 8 are more stable and reliable, preventing the pin 8 from accidentally coming out, and further enhancing the stability of the entire support component in the fixed state. A protective pad 24 made of elastic rubber is fixedly connected. When the construction personnel press the pin cap 9 to lock the pin 8, the protective pad 24 can act as a buffer, increasing the comfort of hand pressing and improving the comfort and safety of operation. The inclined surface 15 on the pin 8 corresponds to the inclined surface 16 on the locking block 11. When the pin 8 is inserted into the pin cap 9, the interaction between the inclined surfaces can push the locking block 11 to compress the spring 13 more smoothly away from the locking groove 14, making the insertion of the pin 8 more effortless and smooth, and facilitating the construction personnel to quickly complete the installation of the pin 8, thus improving the convenience of operation. The mounting holes 6 at the four corners of the base 5 surface facilitate the use of bolts and other connecting parts to firmly fix the base 5 to the ground or construction platform and other preset positions, enhancing the stability of the bottom of the entire support component. This allows it to better bear the weight of the precast composite slab and various loads during construction, avoiding the impact on the installation accuracy and construction safety of the precast composite slab due to the overall shaking or displacement of the support component.

[0022] Example 2: As Figure 2 one Figure 4 As shown, a guide rod 19 is provided on the surface of the support rod 1, and a guide groove 20 is provided on the inner wall of the extension rod 2 at the position corresponding to the guide rod 19. The guide rod 19 is locked inside the guide groove 20. A guide groove 18 is provided on the surface of the pin 8, and a guide rod 17 is fixedly connected to the inner wall of the pin cap 9 at the position corresponding to the guide groove 18. The guide rod 17 is locked inside the guide groove 18.

[0023] In this embodiment, the guide rod 19 on the surface of the support rod 1 and the guide groove 20 on the inner wall of the extension rod 2 cooperate with each other, as do the guide groove 18 on the surface of the pin 8 and the guide rod 17 on the inner wall of the pin cap 9. This provides precise guidance, ensuring that the sliding of the support rod 1 within the extension rod 2 and the insertion and removal of the pin 8 within the pin cap 9 can proceed in a specific direction, preventing rotation and ensuring that the insertion hole 7 and the adjustment hole 21, as well as the locking block 11 and the locking slot 14, can always be quickly aligned. This further improves the convenience of the pin 8 entering and exiting the insertion hole 7 and the adjustment hole 21, and the locking block 11 being inserted into the locking slot 14.

[0024] The working principle of this embodiment:

[0025] When in use, first place the support component in the designated position, and then fix the base 5 to the ground or construction platform in the preset position through the mounting holes 6 at the four corners of its surface using bolts and other connectors to ensure that the base 5 is stable and provides a stable bottom support foundation for the entire support component, so that it can bear the load brought by the subsequent precast composite slab.

[0026] When adjusting the height of the support assembly, first hold handwheel 12, then pull lever 12 to disengage the locking block 11 from the slot 14 on the pin 8, overcoming the resistance of spring 13, and remove the pin cap 9 from the pin 8. Then remove the pin 8 from the insertion hole 7 and adjustment hole 21. Next, move the extension rod 2 by holding handwheel 12 as needed to change the position of the insertion hole 7 and adjustment hole 21. During the up-and-down movement of the extension rod 2, the guide rod 19 on the support rod 1 cooperates with the guide groove 20 on the inner wall of the extension rod 2, guiding and limiting the movement of the extension rod 2 to prevent rotation during up-and-down movement, which would affect the alignment efficiency of the insertion hole 7 and adjustment hole 21. Then insert the pin 8 into the insertion hole 7 and its corresponding adjustment hole 21, and then put the pin cap 9 back on the pin 8 and press it down. At the same time, also... The other end of the pin 8 is pressed against the pin 8 by the inclined surface 16 on the locking block 11 and the inclined surface 15 on the pin 8, causing the locking block 11 to slide into the fixing block 10. At this time, the guide rod 17 inside the pin cap 9 slides in the guide groove 18 on the pin 8, guiding the pin cap 9 so that the locking block 11 can be accurately aligned with the slot 14. When the locking block 11 is aligned with the slot 14, the locking block 11 is inserted into the slot 14 again under the elastic force of the spring 13, completing the locking of the pin 8, thereby completing the initial quick adjustment and fixation of the height of the support assembly. Then, by turning the handwheel 23, the handwheel 23 drives the support rod 1 to rotate, causing the support rod 1 to move up and down along the screw 4 at its bottom end, thereby finely adjusting the height of the support assembly to meet the usage requirements. Finally, the prefabricated composite plate is placed on the top support 3 to complete the support operation.

Claims

1. A precast composite slab support assembly, comprising a support rod (1) and an extension rod (2), characterized in that: The support rod (1) is slidably connected inside the extension rod (2). The bottom of the support rod (1) is threaded with a lead screw (4). The bottom of the lead screw (4) is fixedly connected with a base (5). A handwheel two (23) is fixedly connected to the support rod (1) near the bottom. A handwheel one (22) is fixedly connected to the extension rod (2) near the bottom. A top support (3) is provided on the top of the extension rod (2). The extension rod (2) and the support rod (1) are respectively provided with an insertion hole (7) and an adjustment hole (21). A pin (8) is inserted into the insertion hole (7) and the corresponding adjustment hole (21). A pin cap (9) is fitted onto one end of the pin (8). The pin (8) has a slot (14) on its surface. The pin cap (9) is fixedly connected to a fixing block (10). The fixing block (10) is slidably connected to a locking block (11). The locking block (11) can be inserted into the slot (14). The end of the locking block (11) away from the slot (14) is fixedly connected to a pull rod (12). The end of the pull rod (12) away from the locking block (11) passes through the fixing block (10). The surface of the pull rod (12) is fitted with a spring (13). One end of the spring (13) is fixedly connected to the locking block (11). The other end of the spring (13) is fixedly connected to the inner wall of the fixing block (10) on the side away from the locking block (11).

2. The prefabricated composite slab support assembly according to claim 1, characterized in that: There are two card blocks (11), and the two card blocks (11) are symmetrically distributed on both sides of the middle part of the surface of the pin cap (9).

3. The prefabricated composite slab support assembly according to claim 1, characterized in that: The pressing surface of the pin cap (9) is fixedly connected to a protective pad (24), which is made of elastic rubber.

4. The prefabricated composite slab support assembly according to claim 1, characterized in that: The pin (8) is inserted into the pin cap (9) with a first inclined surface (15) at one end, and the locking block (11) has a second inclined surface (16) at the position corresponding to the first inclined surface (15).

5. The prefabricated composite slab support assembly according to claim 1, characterized in that: Mounting holes (6) are provided at the four corners of the surface of the base (5).

6. The prefabricated composite slab support assembly according to claim 1, characterized in that: The surface of the support rod (1) is provided with a guide rod two (19), and the inner wall of the extension rod (2) is provided with a guide groove two (20) corresponding to the position of the guide rod two (19). The guide rod two (19) is locked inside the guide groove two (20). The surface of the pin (8) is provided with a guide groove one (18), and the inner wall of the pin cap (9) is fixedly connected with a guide rod one (17) corresponding to the position of the guide groove one (18). The guide rod one (17) is locked inside the guide groove one (18).

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