Post-cast strip formwork supporting rod

Abstract

The utility model relates to the technical field of post-cast strip formwork supporting rods, and discloses a post-cast strip formwork supporting rod which comprises a bottom plate, a sleeve is fixedly connected to the top end of the bottom plate, the diameter of the sleeve is 150 mm, the wall thickness of the sleeve is 3 mm, a through hole is formed in the bottom end of the inner side wall of the sleeve, a penetrating hole is formed in the side wall of the sleeve, and a supporting rod is slidably connected into the sleeve. A top plate is fixedly connected to the top end of the supporting rod, a cavity is formed in the bottom end of the supporting rod, internal threads are arranged on the inner side wall of the cavity, external threads are arranged on the outer side of the top end of a threaded fixing rod in the cavity, and the top of the fixing rod is connected with the cavity in the bottom end of the supporting rod through the threads. According to the post-cast strip formwork dismounting device, the rotating shaft is rotated to enable the first gear to drive the second gear to rotate, the second gear can drive the fixing rod to rotate when rotating, the outer side of the fixing rod is provided with the external threads, the fixing rod can push the supporting rod to slide downwards in the sleeve when rotating, supporting of the top plate to the post-cast strip formwork is relieved, and the supporting rod is rapidly dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of post-casting strip formwork support rods, in particular to a post-casting strip formwork support rod. Background Art

[0002] The post-cast strip is a concrete strip left at the corresponding positions of the foundation slab, wall, beam and basement top slab in accordance with the design or construction specifications to prevent harmful cracks that may be caused by uneven shrinkage or settlement of reinforced concrete structures during construction. The post-cast strip requires formwork to be supported when pouring and forming, and support rods are required to support the formwork of the post-cast strip when supporting it.

[0003] The formwork used to support the post-cast strip is usually connected to a screw at the top of a round steel pipe with a top plate fixed on the top of the screw. According to the height of the post-cast strip formwork from the ground, the length of the screw extending out of the steel pipe is adjusted, and then a fixing ring is used. After fixing, the steel pipe is erected so that the top plate contacts the post-cast strip formwork to support the post-cast strip formwork.

[0004] When the formwork needs to be disassembled, since the screw is connected to the top of the steel pipe, the construction workers need to climb to the top of the support rod to turn the bolt to retract the screw, which makes it inconvenient for the workers to quickly disassemble the support rod of the post-casting strip formwork. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a support rod for the post-cast strip formwork, which aims to improve the problem in the prior art that when the screw rod is connected to the top of the steel pipe, construction workers need to climb to the top of the support rod to turn the bolt to retract the screw rod, which makes it inconvenient for workers to quickly disassemble the support rod for the post-cast strip formwork.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solution: a post-casting strip formwork support rod, comprising:

[0007] A bottom plate, wherein a sleeve is fixedly connected to the top of the bottom plate, a support rod is slidably connected inside the sleeve, and a through hole is formed on the side wall of the sleeve;

[0008] A cavity is provided at the bottom end of the support rod;

[0009] A top plate, fixedly connected to the top of the support rod;

[0010] A fixed rod is rotatably connected to the middle of the top of the bottom plate, a second gear is fixedly connected to the outer side of the bottom end of the fixed rod, and the top end of the fixed rod is threadedly connected to the inside of the cavity;

[0011] Gear 1 is meshedly connected to one side of gear 2. A rotating shaft is fixedly connected to the interior of gear 1, and one end of the rotating shaft passes through the side wall of the sleeve. Gear 1 is used to drive gear 2 to rotate;

[0012] A through hole is provided on the gear one, and a fixing portion is connected inside the through hole, and the fixing portion is used to fix the gear one.

[0013] As a further description of the above technical solution:

[0014] The fixing portion is an insertion rod, the insertion rod is inserted into the through hole, and the other end of the insertion rod passes through the side wall of the sleeve.

[0015] As a further description of the above technical solution:

[0016] The top plate is configured as a U-shaped structure.

[0017] As a further description of the above technical solution:

[0018] A groove is provided on the outside of the fixing rod, a convex block is slidably connected inside the groove, one side of the convex block is fixedly connected to the inner wall of the sleeve, and the convex block is used to limit the rotation of the fixing rod.

[0019] As a further description of the above technical solution:

[0020] An external thread is provided on the outer side of the top end of the fixing rod.

[0021] As a further description of the above technical solution:

[0022] An inner wall of the cavity is provided with an internal thread.

[0023] The utility model has the following beneficial effects:

[0024] In the utility model, the rotating shaft causes gear one to drive gear two to rotate, and gear two will drive the fixed rod to rotate when rotating. Since the outer side of the fixed rod is provided with an external thread, the fixed rod will push the support rod to slide downward inside the sleeve when rotating, thereby releasing the support of the top plate for the post-casting strip template. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional diagram of a post-casting strip formwork support rod proposed by the utility model;

[0026] Figure 2 This is a cross-sectional view of a sleeve of a post-casting strip formwork support rod proposed by the present invention;

[0027] Figure 3 This is a cross-sectional view of a fixing rod of a post-casting strip formwork support rod proposed by the utility model.

[0028] Legend:

[0029] 1. Bottom plate; 2. Rotating shaft; 3. Insert rod; 4. Sleeve; 5. Support rod; 6. Top plate; 7. Gear 1; 8. Fixing rod; 9. Through hole; 10. Gear 2; 11. Groove; 12. Cavity; 13. Bump. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1-3 The utility model provides an embodiment: a post-casting strip formwork support rod, comprising a bottom plate 1, a sleeve 4 fixedly connected to the top of the bottom plate 1, the sleeve 4 having a diameter of 150 mm, a wall thickness of 3 mm, a through hole provided at the bottom end of the inner side wall of the sleeve 4, a perforation provided on the side wall of the sleeve 4, a support rod 5 slidably connected inside the sleeve 4, a top plate 6 fixedly connected to the top end of the support rod 5, the top plate 6 being configured as a U-shaped structure, the top plate 6 of the U-shaped structure. A cavity 12 is provided at the bottom end of the support rod 5, an internal thread is provided on the inner side wall of the cavity 12, an external thread is provided on the outer side of the top end of the threaded fixing rod 8 inside the cavity 12, and the top of the fixing rod 8 is connected to the cavity 12 at the bottom end of the support rod 5 by threads.

[0032] The bottom end of the fixed rod 8 is rotatably connected to the middle of the top of the bottom plate 1. The outer side of the bottom of the fixed rod 8 is fixedly connected to a gear 2 10. One side of the gear 2 10 is meshed and connected to a gear 1 7. The inside of the gear 1 7 is fixedly connected to a rotating shaft 2. One end of the rotating shaft 2 passes through the inner wall of the sleeve 4 (that is, one end of the rotating shaft 2 passes through the through hole on the side wall of the sleeve 4). The hand rotates the rotating shaft 2 to rotate the gear 1 7. When the gear 1 7 rotates, it drives the gear 2 10 to rotate. When the gear 2 10 rotates, it drives the fixed rod 8 to rotate, thereby pushing the support rod 5 to slide upward inside the sleeve 4, so that the top plate 6 contacts the post-casting strip template to support the post-casting strip template, and rotates in the opposite direction. The rotating shaft 2 causes gear 1 7 to drive gear 2 10 to rotate, and gear 2 10 will drive the fixed rod 8 to rotate when rotating. Because the fixed rod 8 is provided with an external thread on the outside, the fixed rod 8 will cause the support rod 5 to slide downward inside the sleeve 4 when rotating, thereby releasing the support of the top plate 6 on the post-casting strip formwork, thereby realizing the disassembly of the support rod 5. In this way, there is no need to climb to the top of the support rod 5 when disassembling the support rod 5, because gear 1 7 is fixed to gear 1 7 by an insertion rod 3 inserted into the through hole 9. When disassembling the support rod 5, you only need to pull out the insertion rod 3, and no tools are required during the disassembly process.

[0033] Grooves 11 are provided on both sides of the bottom end of the support rod 5, and a protrusion 13 is slidably connected inside the groove 11. One side of the protrusion 13 is fixedly connected to the inner wall of the sleeve 4, and the outer wall of the protrusion 13 is tightly attached to the inner wall of the groove 11. When the fixing rod 8 rotates, the protrusion 13 sliding inside the groove 11 will restrict the support rod 5 to prevent the support rod 5 from rotating with the fixing rod 8 when the fixing rod 8 rotates.

[0034] A plurality of evenly distributed through holes 9 are provided on the gear 1 7, and an insert rod 3 is inserted into the through hole 9. One end of the insert rod 3 passes through the side wall of the sleeve 4 (that is, one end of the insert rod 3 passes through the through hole on the sleeve 4). The outer wall of the insert rod 3 contacts the inner wall of the through hole 9. The friction between the two will not cause the insert rod 3 to fall out of the through hole 9. After the top plate 6 contacts the post-casting strip template, the insert rod 3 can pass through the through hole and extend into the through hole 9 to fix the gear 1 7 and the fixing rod 8.

[0035] When it is necessary to support the formwork at the settled post-casting strip, multiple sleeves 4 can be erected, and the spacing between multiple sleeves 4 is not more than 1.8m. Then the hand rotates the rotating shaft 2 to rotate gear 1 7. When gear 1 7 rotates, it drives gear 2 10 to rotate. The rotating gear 2 10 drives the fixing rod 8 to rotate. When the fixing rod 8 rotates, it pushes the support rod 5 to move upward so that the top plate 6 contacts the formwork at the post-casting strip. Then, the insertion rod 3 is inserted through the through hole on the sleeve 4 into the through hole 9 to limit the gear 1 7 and fix the fixing rod 8. When it is necessary to remove the support rod 5, the insertion rod 3 can be taken out from the through hole 9, and then the rotating shaft 2 is rotated in the opposite direction to make gear 1 7 drive gear 2 10 to rotate. When gear 2 10 rotates, it drives the fixing rod 8 to rotate. When the fixing rod 8 rotates, it pushes the support rod 5 to slide downward inside the sleeve 4, so that the top plate 6 is separated from the post-casting strip formwork, releasing the support of the formwork by the support rod 5, so that the construction personnel can remove the support rod 5.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A post-casting strip formwork support rod, characterized by: include A bottom plate (1), wherein a sleeve (4) is fixedly connected to the top of the bottom plate (1), and a support rod (5) is slidably connected inside the sleeve (4); A cavity (12) is provided at the bottom end of the support rod (5), and a perforation is provided on the side wall of the sleeve (4); A top plate (6) fixedly connected to the top of the support rod (5); A fixed rod (8) is rotatably connected to the middle of the top end of the base plate (1), a gear 2 (10) is fixedly connected to the outer side of the bottom end of the fixed rod (8), and the top end of the fixed rod (8) is threadedly connected to the inside of the cavity (12); Gear 1 (7) is meshedly connected to one side of gear 2 (10), a rotating shaft (2) is fixedly connected inside gear 1 (7), one end of the rotating shaft (2) passes through the side wall of the sleeve (4), and gear 1 (7) is used to drive gear 2 (10) to rotate; A through hole (9) is provided on the gear one (7), and a fixing portion is connected inside the through hole (9), and the fixing portion is used to fix the gear one (7).

2. The post-casting strip formwork support rod according to claim 1, characterized in that: The fixing portion is an insertion rod (3), the insertion rod (3) is inserted into the through hole (9), and the other end of the insertion rod (3) passes through the side wall of the sleeve (4).

3. The post-casting strip formwork support rod according to claim 1, characterized in that: The top plate (6) is configured as a U-shaped structure.

4. The post-casting strip formwork support rod according to claim 1, characterized in that: A groove (11) is provided on the outside of the fixing rod (8), a protrusion (13) is slidably connected inside the groove (11), one side of the protrusion (13) is fixedly connected to the inner wall of the sleeve (4), and the protrusion (13) is used to limit the rotation of the fixing rod (8).

5. The post-casting strip formwork support rod according to claim 1, characterized in that: An external thread is provided on the outer side of the top end of the fixing rod (8).

6. The post-casting strip formwork support rod according to claim 1, characterized in that: An inner wall of the cavity (12) is provided with an internal thread.

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