Adjustable reinforcement cage splicing and positioning device

Abstract

The utility model provides an adjustable reinforcement cage splicing and positioning device which comprises a supporting frame, a space allowing a reinforcement cage to penetrate through is defined by the supporting frame, the supporting frame extends downwards to form supporting legs, and the supporting frame is provided with a plurality of supporting rods used for supporting the reinforcement cage. The positioning rods penetrate through the supporting frame and then are connected with the supporting rods; the locking assembly is used for limiting the movement of the positioning rod. The device is convenient to operate, after installation is completed, the positioning device is not fixed to the pile casing, deviation of the pile casing is avoided, the positioning device is exposed out of the ground, and adjustment by workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge pile foundation construction, and particularly relates to an adjustable steel cage splicing and positioning device. Background Art

[0002] During bridge construction, piling needs to be carried out according to requirements, and a casing and a steel cage are placed inside the pile foundation. At present, when installing the steel cage, in order to prevent the steel cage from being displaced, positioning steel bars are welded on the top of the steel cage. During the concrete pouring process, the positioning steel bars may contact the inner wall of the pile foundation and are not covered by concrete, and are exposed outside the pile body to contact and be eroded by soil, water flow, etc., rusting, which affects the quality of the pile foundation. In order to ensure that the protective layer thickness of the pile foundation steel cage meets the construction requirements, concrete cushions need to be installed before the steel cage is lowered. The existing positioning devices cannot adjust the diameter width, resulting in the inability to lower the steel cage normally.

[0003] The patent with the publication number CN217758730U discloses an adjustable positioning device for the steel cage of a bored cast-in-place pile, which includes at least three setting components detachably installed between the casing and the steel cage and evenly distributed in the radial direction of the casing. The setting component consists of an outer support arc plate, an adjustable screw rod, an inner support arc plate, and a connecting rod. One end of the adjustable screw rod is provided with an outer support arc plate abutted against the casing, and the other end is provided with an inner support arc plate abutted against the steel cage. The lower end of the connecting rod is connected to the outer support arc plate, and the upper end is provided with a chuck hanging on the top of the casing. However, the device still has the following problems:

[0004] 1. The positioning device can only be fixed to the casing, but the pile foundation may be displaced during the drilling process, resulting in inconsistent distances between the pile foundation and the inner wall of the casing. Therefore, if the positioning device is fixed to the casing, its position cannot be changed according to the actual situation later, which will cause the protective layer on one side to be smaller during the lowering process of the steel cage.

[0005] 2. Although it can adjust the diameter width of the positioning device, when the position of the positioning device is relatively low and the position of the steel cage is relatively low, it is difficult to adjust.

[0006] 3. The support rods in multiple directions need to be adjusted separately, the adjustment process is cumbersome, and it is not easy to grasp whether the steel cage is adjusted to the central position, resulting in the displacement of the steel cage position. Content of the Utility Model

[0007] In order to solve the problems existing in the above-mentioned prior art, an adjustable steel cage splicing and positioning device is provided. To solve the problems that the positioning device is fixed to the inner wall of the casing, which easily leads to the displacement of the pile foundation steel cage and insufficient thickness of the pile foundation protective layer, as well as the problem of inconvenient adjustment.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] The utility model provides an adjustable splicing positioning device for steel reinforcement cages, which comprises a support frame. The support frame encloses a space for the steel reinforcement cage to pass through. The support frame extends downward to form support legs, and the support frame is provided with a plurality of support rods for supporting the steel reinforcement cage; a plurality of groups of positioning rods, the positioning rods penetrate through the support frame and are connected with the support rods; and a locking component for restricting the movement of the positioning rods is further included.

[0010] Preferably, the locking component comprises a positioning pin and a socket fixed on the support. A plurality of locking holes are formed in the positioning rod. When the positioning pin is inserted into the socket and the locking hole at the same time, the positioning rod is locked.

[0011] Preferably, a connecting rod is further included. The top end of the connecting rod is fixed to the positioning rod, and the bottom end is connected to the support rod.

[0012] Preferably, the connecting rod is a telescopic rod.

[0013] Preferably, a rack is fixed on one side of each group of positioning rods. A plurality of gears meshing with the rack are rotatably arranged on the support frame. A gear ring is further rotatably arranged in the support frame. Each gear meshes with the gear ring. One side of the gear ring is provided with a driving wheel for driving the gear ring to rotate.

[0014] Preferably, a power rod is arranged on the support frame, and the driving wheel is sleeved on the power rod.

[0015] Preferably, at least one plug is fixed on the side wall of the power rod. A plurality of jacks corresponding to the plug are formed in the support frame. When the plug is located in the jack, the power wheel is locked.

[0016] Preferably, an elastic component for driving the plug to insert into the jack is arranged at one end of the power rod, and the other end of the elastic component is in contact with the support frame.

[0017] Preferably, a transverse support foot is fixed at the bottom of the support leg, and a plurality of fixing nails are connected to the support foot in a threaded manner.

[0018] Preferably, the support frame is formed by splicing at least two groups of components.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model is provided with support feet for placing on the ground to support the positioning device. Being supported on the ground can ensure that the casing is not touched, avoiding the positioning device squeezing and colliding with the casing when positioning the steel reinforcement cage, preventing the casing from sinking, shifting, etc., and making the positioning of the steel reinforcement cage more accurate.

[0021] 2. The positioning rod for adjustment of the present utility model is located above the ground, facilitating the operator to make adjustments.

[0022] 3. The present utility model is also provided with a toothed ring. Through the toothed ring, multiple adjusting rods can be driven to move simultaneously, so that the steel reinforcement cage can be clamped simultaneously in multiple directions, avoiding uneven stress and deviation when adjusting the steel reinforcement cage individually. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0024] Figure 1 is the top view of the present utility model (Embodiment 1);

[0025] Figure 2 is the front view of the present utility model (Embodiment 1);

[0026] Figure 3 is the schematic diagram of the connecting rod structure of the present utility model;

[0027] Figure 4 is the top view of the present utility model (Embodiment 2);

[0028] Figure 5 is the front view of the present utility model (Embodiment 2);

[0029] Figure 6 is the schematic diagram of the toothed ring structure of the present utility model;

[0030] Figure 7 is the schematic diagram of the toothed ring drive structure of the present utility model.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS:

[0032] 1, support frame; 2, support leg; 3, support rod; 4, positioning rod; 5, connecting rod; 6, positioning pin; 7, socket; 8, locking hole; 9, support foot; 10, insertion rod; 11, slot; 12, gear; 13, toothed ring; 14, drive wheel; 15, power rod; 16, plug; 17, jack; 18, spring; 19, fixing nail; 20, knob; 21, splicing seam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0034] Embodiment 1

[0035] Reference appendix Figure 1 - appendix Figure 3 , this embodiment proposes an adjustable splicing positioning device for steel reinforcement cages, including a support frame 1. The support frame 1 encloses a space for the steel reinforcement cage to pass through. The support frame 1 extends downward to form support legs 2, and the support legs 2 contact the ground, so that the entire positioning device is placed on the ground. Therefore, when adjusting the position of the steel reinforcement cage, it no longer contacts the casing in the foundation pit, avoiding the occurrence of situations such as the casing sinking and shifting.

[0036] Several groups of positioning rods 4 are slidably arranged on the support frame 1. One end of each group of positioning rods 4 passing through the support frame 1 is fixedly connected to the top end of a connecting rod 5, and the bottom end of the connecting rod 5 is fixedly connected to a support rod 3. The support rod 3 is arc-shaped and can adapt to steel reinforcement cages of different diameters. When moving the positioning rod 4, the positioning rod 4 drives the support rod 3 to approach the steel reinforcement cage, thereby realizing the pushing of the steel reinforcement cage to move and being able to adapt to steel reinforcement cages of different diameters.

[0037] A locking component for restricting the movement of the positioning rod 4. The locking component includes a positioning pin 6 and a socket 7 fixed on the support 1. The positioning rod 4 is provided with several locking holes 8. When the positioning pin 6 is inserted into both the socket 7 and the locking hole 8 at the same time, the positioning rod 4 will be locked.

[0038] The positioning rod 4 is located on the support frame 1. The bottom end of the support frame 1 extends downward to form support legs 2, and the support legs 2 are placed on the ground. Therefore, the positioning rod 4 is above the ground. Compared with the positioning device located in the foundation pit, there is sufficient operating space and the operation is more convenient.

[0039] After several support rods 3 all push the steel reinforcement cage in place, at this time, lock the positioning rod 4, so that the steel reinforcement cage is limited by several surrounding support rods 3, avoiding the steel reinforcement cage from shaking during the later pouring of concrete.

[0040] Connecting rod 5, the connecting rod 5 is a telescopic rod. The connecting rod 5 includes an outer cylinder and an inner rod. The outer cylinder and the inner rod are slidably connected. An insertion rod 10 is threadedly connected to the outer cylinder. The inner rod 11 is provided with several slots 11 corresponding to the insertion rod 10. By sliding the inner rod, different positions of the slots 11 are made to correspond to the insertion rod 10, and the length of the connecting rod 5 can be adjusted, thereby adjusting the height of the support rod 13 to adapt to steel reinforcement cages at different heights in the foundation pit.

[0041] The support frame 1 can also be formed by splicing at least two groups of components, which is convenient for manufacturing and transportation, and a splicing joint 21 is formed at the splicing place.

[0042] Embodiment Two

[0043] Reference appendix Figure 3 - appendix Figure 7 , other structures are the same as those in Embodiment One. The difference is that in this embodiment, the simultaneous clamping of the support rods 3 is considered.

[0044] On one side of each set of positioning rods 4, there is a rack fixed. There are several gears 12 meshing with the racks on the support frame 1. Each gear 12 meshes with the rack on one positioning rod 4 correspondingly. There is also a gear ring 13 rotatably arranged in the support frame 1. Each gear 12 cooperates with the gear ring 13. On one side of the gear ring 13, there is a rotating drive wheel 14 for driving the gear ring 13 to rotate. When the drive wheel 14 is rotated, the drive wheel 14 drives the gear ring 13 to rotate. The gear ring 13 will drive each gear 12 to rotate simultaneously. The gear 12 drives the corresponding positioning rod 4 to move, so as to realize clamping the steel reinforcement cage by several support rods 3 at the same time. The support rods 3 clamp the steel reinforcement cage inward at the same time, making the steel reinforcement cage located in the middle of the positioning device. Compared with adjusting each support rod 3 separately, the adjustment method is faster and more convenient.

[0045] The rack 4 and the gear 12 are meshed through teeth. The gear 12 and the gear ring 13 are meshed through teeth.

[0046] There is a power rod 15 arranged on the support frame 1. The power rod 15 is rotatably connected to the support frame 1. The drive wheel 14 is sleeved on the power rod 15. One end of the power rod 15 passing through the support frame 1 is fixed with a knob 20. By rotating the knob 20, the power rod 15 rotates, and then drives the drive wheel 14 to rotate.

[0047] The power rod 15 is on the support frame 1 and can also slide along the axial direction of the power rod 15.

[0048] At least one plug 16 is fixed on the side wall of the power rod 15. The support frame 1 is provided with several notches 17 corresponding to the plugs 16. When the power rod 15 slides upward and the plug 16 is located in the notch 17, the power wheel 14 is locked, and at this time, each gear 12 can be locked at the same time.

[0049] At the same time, the positioning pin 6 can further lock the positioning rod 4 to strengthen the limit of the positioning rod 4, so that the support rod 3 is more stable during subsequent operations.

[0050] One end of the power rod 15 is also provided with an elastic component for driving the plug 16 to insert into the notch 17. The elastic component is a spring 18. One end of the spring 18 is fixedly connected to the power rod 15, and the other end is slidably connected to the support frame 1. By pressing down the knob 20, the spring 18 is compressed, and the plug 16 disengages from the jack 17. At this time, the power rod 15 can drive the drive wheel 14 to rotate freely. When the knob 20 is no longer pressed, under the action of the elastic force, the spring 18 elongates, pushing the plug 16 to insert into the jack 17 to lock the positioning rod 15.

[0051] The support leg 2, the bottom of the support leg 2 is fixed with a transverse support foot 9, which can further increase the support strength. The support foot 9 is threadedly connected with several fixing nails 19. When the whole positioning device is placed, the support foot 9 contacts the ground.

[0052] After rotating the fixing pin 19, the fixing pin 19 is inserted into the ground, so that the supporting foot 9 will not easily displace from the ground. When pushing the supporting rod 3 to clamp the steel reinforcement cage, the support frame 1 is more stable, avoiding sliding with the ground, and thus will not cause the offset of the steel reinforcement cage during the subsequent operation process.

[0053] Specific working process:

[0054] S1. A casing is placed in a pre-dug foundation pit. First, according to the depth of the foundation pit and the height of the steel reinforcement cage, adjust the length of the connecting rod 5 to ensure that it can be lower than the top end after the steel reinforcement cage is placed. Then, according to the central position of the foundation pit, determine the position of the entire positioning device above the foundation pit.

[0055] S2. Use a crane to lower the steel reinforcement cage. After the steel reinforcement cage is lowered in place, the positioning rod 4 controls the forward and backward movement of the supporting rod 3 to ensure that the steel reinforcement cage is in the middle position of the foundation pit.

[0056] S3. After adjusting the steel reinforcement cage to a suitable position, use the positioning pin 6. First, insert the positioning pin 6 into the control hole 8, and then insert it into the socket 7 to lock the positioning rod 4 to prevent it from moving.

[0057] S4. Pour concrete into the foundation pit. When the pouring elevation of the concrete is about to reach the design elevation, pull out the positioning pin 6, move the positioning rod 4 in the direction away from the steel reinforcement cage, and then remove the entire positioning device.

[0058] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An adjustable steel cage splicing and positioning device, characterized in that: The invention comprises a support frame (1), wherein the support frame (1) is arranged to form a space for a steel cage to pass through, wherein the support frame (1) extends downward to form support legs (2), and wherein the support frame (1) is provided with a plurality of support rods (3) for supporting the steel cage; a plurality of groups of positioning rods (4), wherein the positioning rods (4) penetrate the support frame (1) and are connected to the support rods (3); and a locking assembly for limiting the movement of the positioning rods (4).

2. The adjustable steel cage splicing and positioning device according to claim 1 is characterized in that: The locking assembly comprises a positioning pin (6) and a socket (7) fixed on the support frame (1); the positioning rod (4) is provided with a plurality of locking holes (8); when the positioning pin (6) is inserted into the socket (7) and the locking hole (8) at the same time, the positioning rod (4) is locked.

3. The adjustable steel cage splicing and positioning device according to claim 1 is characterized in that: It also comprises a connecting rod (5), the top end of which is fixed to the positioning rod (4) and the bottom end of which is connected to the supporting rod (3).

4. The adjustable steel cage splicing and positioning device according to claim 3 is characterized in that: The connecting rod (5) is a telescopic rod.

5. The adjustable steel cage splicing and positioning device according to any one of claims 1 to 4, characterized in that: A rack is fixed on one side of each group of positioning rods (4); a plurality of gears (12) matched with the rack are rotated on the support frame (1); a gear ring (13) is also rotated inside the support frame (1); each gear (12) is matched with the gear ring (13); and a driving wheel (14) for driving the gear ring (13) to rotate is matched on one side of the gear ring (13).

6. The adjustable steel cage splicing and positioning device according to claim 5, characterized in that: The support frame (1) is provided with a power rod (15), and the driving wheel (14) is sleeved on the power rod (15).

7. The adjustable reinforcement cage splicing and positioning device according to claim 6 is characterized in that: At least one plug (16) is fixed to the side wall of the power rod (15), and the support frame (1) is provided with a plurality of sockets (17) corresponding to the plug (16). When the plug (16) is located in the socket (17), the driving wheel (14) is locked.

8. The adjustable steel cage splicing and positioning device according to claim 7, characterized in that: An elastic component for inserting a driving plug (16) into a socket (17) is provided at one end of the power rod (15), and the other end of the elastic component is in contact with the support frame (1).

9. The adjustable steel cage splicing and positioning device according to claim 5, characterized in that: A transverse supporting foot (9) is fixed to the bottom of the supporting leg (2), and the supporting foot (9) is threadedly connected with a plurality of fixing nails (19).

10. The adjustable steel cage splicing and positioning device according to claim 1, characterized in that: The support frame (1) is formed by splicing at least two groups of components.

Images