Cast-in-place concrete joint bottom die lifting device

Abstract

The utility model relates to the technical field of concrete pouring, and discloses a cast-in-place concrete joint bottom die lifting device which comprises a winch, a winding rope is installed on the surface of the winch, a bottom die plate is installed at one end of the winding rope, and installation plates are installed at the two ends of the winch. According to the cast-in-place concrete joint bottom die lifting device, a worker presses a sliding rod inwards to drive a first spring to store force so that the sliding rod can be contracted into a mounting shell, after two extension rods are rotated through a rotating shaft to be combined, the position of a limiting plate can be staggered and aligned front and back, then the sliding rod is loosened to release force generated by the first spring, and then the sliding rod is lifted; and a first spring rebounds to push a sliding rod to be inserted into a limiting plate, the position of an extension rod is fixed, the extension rod is combined, the occupied space of the device is reduced, workers can transport and transfer the device conveniently, and the device can be carried through a narrow and small channel so as to be suitable for being used in different environments.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pouring, in particular to a cast-in-place concrete joint bottom formwork lifting device. Background Art

[0002] Concrete pouring refers to the process of pouring concrete into a mold until it is plasticized. In civil engineering, concrete and other materials are placed in a mold to form a predetermined shape. In bridge construction, in order to connect a unit of box girders into a whole, it is necessary to use formwork to construct cast-in-place concrete joints in the gaps between the box girders and the gaps between adjacent spans of each unit. The formwork is made of wood.

[0003] The existing bottom form lifting device is large in size. When used in special environments, it may be blocked by buildings due to its own size, making it impossible for the device to enter the building. In addition, the device cannot be folded to reduce the occupied space, making it cumbersome to carry and move the device, which increases the difficulty of construction and prolongs the construction period. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing technology has the disadvantages of being unable to fold and inconvenient to carry, so we propose a cast-in-place concrete joint bottom formwork lifting device.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a cast-in-place concrete joint bottom formwork lifting device, including a winch, a winding rope is installed on the surface of the winch, and a bottom formwork is installed at one end of the winding rope, and mounting plates are installed at both ends of the winch, one side of the mounting plate is fixedly connected to two rotating shafts, the surface of the rotating shaft is fixedly and rotatably connected to an extension rod, one side of the extension rod is fixedly connected to a limiting plate, the bottom of the mounting plate is fixedly connected to a mounting shell, the inner wall of the mounting shell is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a first spring, and the other end of the first spring is fixedly connected to the inner wall of the mounting shell.

[0006] Preferably, a sliding groove is provided inside the sliding rod, and a T-shaped rod is slidably connected to the inner wall of the sliding groove, and one end of the T-shaped rod is fixedly connected to the inner wall of the mounting shell.

[0007] Preferably, a semicircular plate is fixedly connected to one side of the mounting plate, a circular groove is opened on one side of the semicircular plate, a second spring is fixedly connected to the inner wall of the circular groove, one end of the second spring is fixedly connected to a transfer rod, and a triangular block is fixedly connected to the bottom of the transfer rod.

[0008] Preferably, the opening of the circular groove is provided with a rounded corner.

[0009] Preferably, the semicircular plate is fan-shaped, and the bottom of the semicircular plate is parallel to the top of the extension rod.

[0010] Preferably, the T-shaped rod is placed on the inner wall of the first spring, and the inner wall of the first spring is slidably connected to the surface of the T-shaped rod.

[0011] Preferably, a moving wheel is installed at the bottom of the extension rod, and a clamping plate is installed on one side of the moving wheel.

[0012] Technical effects and advantages of this utility model:

[0013] In the present invention, the staff presses the sliding rod inward to drive the first spring to store force and retract the sliding rod into the installation shell. After the two extension rods are merged by rotating the rotating shaft, the position of the limit plate is aligned front and back. Then the sliding rod is released to release the force generated by the first spring, so that the first spring rebounds and pushes the sliding rod to be inserted into the limit plate, fixing the position of the extension rod. The merger reduces the space occupied by the device, making it easier for the staff to transport and transfer the device, so that the device can be carried through narrow passages and suitable for use in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the folding structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the limiting structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the mobile structure of the utility model.

[0018] Legend: 1. Winch; 2. Winding rope; 3. Bottom template; 4. Mounting plate; 5. Rotating shaft; 6. Extension rod; 7. Limiting plate; 8. Mounting shell; 9. Sliding rod; 10. First spring; 11. Slide groove; 12. T-shaped rod; 13. Semicircular plate; 14. Circular groove; 15. Second spring; 16. Adapter rod; 17. Triangular block; 18. Rounded corner; 19. Moving wheel; 20. Clamping plate. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0020] Reference Figure 1 - Figure 3As shown, the utility model provides a technical solution: a cast-in-situ concrete joint bottom formwork lifting device, including a winch 1, a winding rope 2 is installed on the surface of the winch 1, and a bottom formwork 3 is installed at one end of the winding rope 2. Both ends of the winch 1 are installed with mounting plates 4, one side of the mounting plate 4 is fixedly connected to two rotating shafts 5, the surface of the rotating shaft 5 is fixedly and rotatably connected to an extension rod 6, one side of the extension rod 6 is fixedly connected to a limit plate 7, the bottom of the mounting plate 4 is fixedly connected to a mounting shell 8, the inner wall of the mounting shell 8 is slidably connected to a slide rod 9, one end of the slide rod 9 is fixedly connected to a first spring 10, and the other end of the first spring 10 is fixedly connected to the mounting shell 8. The inner wall of the mounting shell 8 is fixedly connected, and the staff presses the slide bar 9 inward to drive the first spring 10 to store force and retract the slide bar 9 into the mounting shell 8. After the two extension rods 6 are rotated and merged by the rotating shaft 5, the position of the limit plate 7 is aligned front and back, and then the slide bar 9 is released to release the force generated by the first spring 10, so that the first spring 10 rebounds and pushes the slide bar 9 to insert into the limit plate 7, fixing the position of the extension rod 6. The merger reduces the space occupied by the device, so that the staff can transport and transfer the device, so that the device can be carried through narrow passages to be suitable for use in different environments.

[0021] Reference Figure 2 As shown, in this embodiment: a sliding groove 11 is opened inside the sliding rod 9, and a T-shaped rod 12 is slidably connected to the inner wall of the sliding groove 11. One end of the T-shaped rod 12 is fixedly connected to the inner wall of the mounting shell 8. When the first spring 10 rebounds, the sliding connection between the sliding groove 11 and the T-shaped rod 12 limits the moving trajectory of the sliding rod 9 and limits the maximum elastic force of the first spring 10, so that the position of the sliding rod 9 is always in the mounting shell 8, preventing the first spring 10 from popping out the sliding rod 9.

[0022] Reference Figure 2 As shown, in this embodiment: a semicircular plate 13 is fixedly connected to one side of the mounting plate 4, a circular groove 14 is opened on one side of the semicircular plate 13, a second spring 15 is fixedly connected to the inner wall of the circular groove 14, one end of the second spring 15 is fixedly connected to a transfer rod 16, and a triangular block 17 is fixedly connected to the bottom of the transfer rod 16. The staff pulls the transfer rod 16 outward to drive the second spring 15 to store force, and then rotates the extension rod 6 to a specified position, loosens the transfer rod 16 to release the force generated by the second spring 15, and makes it rebound to pull the transfer rod 16 to drive the triangular block 17 to insert into the angle formed by the extension rod 6. The triangular structure of the triangular block 17 contacts the hypotenuse surface of the extension rod 6 to limit the position of the extension rod 6 to prevent the extension rod 6 from rotating during normal use of the device.

[0023] Reference Figure 2As shown, in this embodiment: a rounded corner 18 is provided at the opening of the circular groove 14. Due to the rounded design of the rounded corner 18, when the second spring 15 rebounds and pulls the transfer rod 16 to move into the circular groove 14, the transfer rod 16 contacts the rounded corner 18, making it easier for the transfer rod 16 to slide into the circular groove 14.

[0024] Reference Figure 2 and Figure 3 As shown, in this embodiment: the shape of the semicircular plate 13 is fan-shaped, and the bottom of the semicircular plate 13 is parallel to the top of the extension rod 6. The fan-shaped bottom plane design of the semicircular plate 13 makes it possible for the top of the extension rod 6 to be in a parallel state when in contact with the bottom of the semicircular plate 13. It is restricted by the semicircular plate 13 and no longer rotates upward, thereby limiting the maximum expansion range of the extension rod 6.

[0025] Reference Figure 2 As shown, in this embodiment: the T-shaped rod 12 is placed on the inner wall of the first spring 10, and the inner wall of the first spring 10 is slidably connected to the surface of the T-shaped rod 12. When the first spring 10 is in operation, the sliding connection between the T-shaped rod 12 and the first spring 10 allows the first spring 10 to move along the surface of the T-shaped rod 12, thereby limiting the movement trajectory of the first spring 10 and preventing the first spring 10 from curling up during rebound and causing entanglement that affects the normal operation of the assembly.

[0026] Reference Figure 4 As shown, in this embodiment: a moving wheel 19 is installed at the bottom of the extension rod 6, and a card plate 20 is installed on one side of the moving wheel 19. Through the moving wheel 19 installed at the bottom of the extension rod 6, the staff can flexibly move the position of the device through the moving wheel 19, and then through the set card plate 20, the staff can operate the card plate 20 to close to the surface of the moving wheel 19 to limit it.

[0027] Working principle: The staff presses the slide bar 9 inward to drive the first spring 10 to store force and retract the slide bar 9 into the mounting shell 8. After the two extension rods 6 are rotated and merged by the rotating shaft 5, the position of the limit plate 7 is aligned front and back. Then the slide bar 9 is released to release the force generated by the first spring 10, so that the first spring 10 rebounds and pushes the slide bar 9 into the limit plate 7, fixing the position of the extension rod 6. The merging of the two extension rods 6 reduces the space occupied by the device, making it easier for the staff to transport and transfer the device, so that the device can be carried through narrow passages to be suitable for different environments. In use, when the first spring 10 rebounds, the sliding connection between the slide groove 11 and the T-shaped rod 12 limits the movement trajectory of the slide bar 9, limits the maximum elastic force of the first spring 10, so that the position of the slide bar 9 is always in the installation shell 8, and the first spring 10 is prevented from popping out the slide bar 9. The staff pulls the transfer rod 16 outward to drive the second spring 15 to store force, and then after the extension rod 6 is rotated to a specified position, the transfer rod 16 is released to release the force generated by the second spring 15, causing it to rebound and pull the transfer rod 16 to drive the triangular block 17 to insert into the angle formed by the extension rod 6. The triangular structure of 17 contacts the hypotenuse of the extension rod 6 to limit the position of the extension rod 6, preventing the extension rod 6 from rotating when the device is in normal use. The rounded design of the fillet 18 allows the second spring 15 to rebound and pull the transfer rod 16 to move into the circular groove 14. The transfer rod 16 contacts the fillet 18, making it easier for the transfer rod 16 to slide into the circular groove 14. The fan-shaped bottom plane design of the semicircular plate 13 allows the top of the extension rod 6 to be in parallel with the bottom of the semicircular plate 13 when in contact. The extension rod 6 is no longer rotated upward due to the restriction of the semicircular plate 13, which maximizes the extension rod 6. The opening range is limited. When the first spring 10 is in operation, the sliding connection between the T-shaped rod 12 and the first spring 10 allows the first spring 10 to move along the surface of the T-shaped rod 12, thereby limiting the movement trajectory of the first spring 10 to prevent the first spring 10 from curling up and causing entanglement when it rebounds, thereby affecting the normal operation of the component. The moving wheel 19 installed at the bottom of the extension rod 6 allows the staff to flexibly move the position of the device through the moving wheel 19, and then through the provided card plate 20, the staff can operate the card plate 20 to close to the surface of the moving wheel 19 to limit it.

[0028] 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 cast-in-place concrete joint bottom formwork lifting device, comprising a winch (1), characterized in that: A winding rope (2) is installed on the surface of the hoist (1), and a bottom template (3) is installed on one end of the winding rope (2). A mounting plate (4) is installed on both ends of the hoist (1). One side of the mounting plate (4) is fixedly connected to two rotating shafts (5). The surface of the rotating shaft (5) is fixedly rotatably connected to an extension rod (6). One side of the extension rod (6) is fixedly connected to a limiting plate (7). The bottom of the mounting plate (4) is fixedly connected to a mounting shell (8). The inner wall of the mounting shell (8) is slidably connected to a slide rod (9). One end of the slide rod (9) is fixedly connected to a first spring (10), and the other end of the first spring (10) is fixedly connected to the inner wall of the mounting shell (8).

2. The cast-in-situ concrete joint bottom formwork lifting device according to claim 1, characterized in that: A sliding groove (11) is provided inside the sliding rod (9), and a T-shaped rod (12) is slidably connected to the inner wall of the sliding groove (11), and one end of the T-shaped rod (12) is fixedly connected to the inner wall of the mounting shell (8).

3. The cast-in-situ concrete joint bottom formwork lifting device according to claim 1, characterized in that: A semicircular plate (13) is fixedly connected to one side of the mounting plate (4), a circular groove (14) is provided on one side of the semicircular plate (13), a second spring (15) is fixedly connected to the inner wall of the circular groove (14), one end of the second spring (15) is fixedly connected to a transfer rod (16), and a triangular block (17) is fixedly connected to the bottom of the transfer rod (16).

4. The cast-in-situ concrete joint bottom formwork lifting device according to claim 3, characterized in that: The opening of the circular groove (14) is provided with a rounded corner (18).

5. The cast-in-situ concrete joint bottom formwork lifting device according to claim 3, characterized in that: The semicircular plate (13) is in the shape of a fan, and the bottom of the semicircular plate (13) is parallel to the top of the extension rod (6).

6. The cast-in-situ concrete joint bottom formwork lifting device according to claim 2, characterized in that: The T-shaped rod (12) is placed on the inner wall of the first spring (10), and the inner wall of the first spring (10) is slidably connected to the surface of the T-shaped rod (12).

7. The cast-in-situ concrete joint bottom formwork lifting device according to claim 1, characterized in that: A moving wheel (19) is installed at the bottom of the extension rod (6), and a clamping plate (20) is installed on one side of the moving wheel (19).

Images