Novel embedded pipeline end fitting shaping protection device

Abstract

A novel end-protection device for embedded pipelines includes: a sealing plate with a threaded through hole at its center and at least two intersecting grooves radially arranged on its surface; a telescopic drive assembly comprising a central long screw threadedly connected to the sealing plate, with a rotary drive component connected to its tail; and a support assembly comprising several support plates and connecting rods; one end of each support plate is slidably connected to a groove in the sealing plate; both ends of the connecting rods are hinged to the support plates and the front end of the telescopic drive assembly, respectively; wherein, the rotary drive component drives the central long screw to move axially, driving the telescopic drive assembly to move forward or backward, and the connecting rods push the support plates to expand or contract radially along the grooves. This protective device has a simple structure, readily available materials, is easy to assemble, and is reusable, making it suitable for end protection of various types of embedded pipelines.

Description

Technical Field

[0001] This application belongs to the field of auxiliary equipment technology for building engineering, and in particular relates to a new type of pre-embedded pipeline end shaping and protection device. Background Technology

[0002] With the popularization of prefabricated building technology, embedded pipelines (such as electrical, water supply and drainage, and HVAC pipelines) need to be installed before concrete pouring. The quality of end treatment directly affects the subsequent equipment installation effect. The current common practice is to use soft materials for sealing, which lacks support and is prone to deformation or blockage of pipeline ends during the pouring process. Although some protective components exist in existing technologies, they suffer from high cost, complex installation, and non-reusability. Therefore, there is an urgent need for a simple, easy-to-operate, and reusable embedded pipeline end protection device and construction method. Summary of the Invention

[0003] This application provides a novel type of pre-embedded pipeline end shaping and protection device, which aims to solve the technical problems existing in the protection of pre-embedded pipeline ends, such as insufficient support, easy damage, high cost, and complex construction.

[0004] To solve at least one of the above-mentioned technical problems, the technical solution adopted in this application is:

[0005] A novel type of pre-embedded pipeline end-forming protection device includes:

[0006] A closed plate with a threaded through hole in the center and at least two intersecting grooves on the plate surface along the radial direction;

[0007] The telescopic drive assembly includes a central long screw that is threadedly connected to the closure plate, with a rotary drive component connected to its tail.

[0008] The support assembly includes several support plates and connecting rods;

[0009] One end of the support strip is slidably connected to the groove of the closed plate, and the other end is suspended.

[0010] The two ends of the connecting rod are respectively hinged to the support plate and the front end of the telescopic drive assembly;

[0011] The rotary drive component drives the central long screw to move axially, which in turn drives the telescopic drive assembly to move forward or backward, and pushes the support plate to expand or contract radially along the slide groove via the connecting rod.

[0012] Furthermore, the enclosed plate has a square structure with rounded corners, and its grooves are arranged radially in a cross shape, with the length of the grooves being less than half the side length of the square.

[0013] Furthermore, the telescopic drive assembly includes: a raised outer sleeve fitted onto the front end of the central long screw, with radially raised plates evenly distributed on its outer wall; one end of the connecting rod is hinged to the raised plate of the raised outer sleeve.

[0014] Furthermore, the support plate is L-shaped, with a protrusion on its short side that slides in conjunction with the groove, and the bottom of its long side is hinged to the other end of the connecting rod via a pin.

[0015] Furthermore, the width of the groove and the protrusion of the support strip form a radial sliding pair.

[0016] Furthermore, a spring and an inner sleeve are sequentially fitted onto the front end of the central long screw, with the two ends of the spring abutting against the sealing plate and the front end cover plate of the protruding outer sleeve, respectively; the spring provides a restoring force when the support plate retracts and resets.

[0017] Furthermore, the rotary drive component is a hand crank handle inserted into the tail of the central long screw, and a limit block is provided at the tail.

[0018] Furthermore, the front end cover of the protruding outer sleeve is a detachable structure.

[0019] This application presents a novel pre-embedded pipeline end-shaping and protection device. The mechanical radial expansion provides rigid support, which can resist concrete extrusion and reduce its deformation rate by 90%. The radial sliding pair of the groove and the protrusion can further ensure that the support plate does not move skewed. The crank operation saves manpower and can be disassembled and assembled by a single person. The structure is simple, the materials are readily available, the assembly is convenient, and it is reusable. It is suitable for end protection of various types of pre-embedded pipelines. Attached Figure Description

[0020] Figure 1 This is a perspective view of the protective device in this application;

[0021] Figure 2 This is a plan view of the protective device in this application;

[0022] Figure 3 This is a front view of the protective device in this application;

[0023] Figure 4 This is a side view of the protective device in this application;

[0024] Figure 5 This is a connection diagram of the linkage assembly in this application;

[0025] Figure 6 This is a schematic diagram of the connection between the inner sleeve and the spring in this application;

[0026] Figure 7 This is a structural diagram of the long screw in this application.

[0027] In the picture:

[0028] 1. Enclosed plate 2. Long screw 3. Protruding outer sleeve

[0029] 4. Connecting rod; 5. Support plate; 6. Hand crank handle

[0030] 7. Inner sleeve; 8. Spring; 9. Limiting block Detailed Implementation

[0031] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] This embodiment proposes a novel pre-embedded pipeline end shaping and protection device, such as... Figure 1 As shown, it includes at least a closed plate 1, a telescopic drive assembly, a support assembly, and a support component. The closed plate 1 has a threaded through hole at its center, and at least two intersecting grooves are arranged radially on its surface. The telescopic drive assembly includes a central long screw 2 threadedly connected to the closed plate 1, with its tail connected to a rotary drive component. The support component includes several support plates 5 and several connecting rods 4. Each support plate 5 has the same structure, and one end of each support plate 5 is slidably connected to a groove on the closed plate 1, while the other end is suspended. The two ends of the connecting rods 4 are respectively hinged to the support plates 5 and the front end of the telescopic drive assembly.

[0033] During operation, the rotary drive component moves the central long screw 2 axially, driving the telescopic drive assembly to move forward or backward. This, in turn, pushes the support plate 5 to expand or contract radially along the groove via the connecting rod 4. When this protective device is placed inside the corresponding pre-embedded pipeline opening, the rotary drive component moves the central long screw 2 back and forth along its length, further expanding the support plate 5 via the connecting rod 4. This securely installs the device at the end of the pre-embedded pipeline, providing support and protection, and better ensuring that subsequent concrete construction avoids damage to the pipeline end due to compression.

[0034] like Figure 4 , 6 As shown in Figure 7, the closed plate 1 is a square structure with rounded corners. Four grooves are arranged radially in a cross shape on it, and the length of the groove is less than half the side length of the square. The purpose is to prevent the support plate 5 from sliding out of the groove and exceeding the range, thus preventing the support from extending.

[0035] like Figure 1 , 2 As shown in Figure 5, the telescopic drive assembly includes a raised outer sleeve 3 fitted onto the front end of the central long screw 2, with radially protruding plates evenly distributed on its outer wall. One end of the connecting rod 4 is hinged to the protruding plate of the raised outer sleeve 3. The protruding plates are arranged along the length direction of the raised outer sleeve 3, and the central long screw 2 drives the four protruding plates to slide along the grooves on the wall of the raised outer sleeve 3.

[0036] The front end and middle part of the central long screw 2 are threaded, and the tail end is hexagonal hollow. Each protruding outer sleeve 3 is provided with two sets of symmetrically arranged connecting rods 4. The symmetrically arranged connecting rods 4 are respectively pivotally connected to the fixing strip on the inner side of the support strip 4 in the length direction, and the other end is pivotally connected to the protruding plate.

[0037] A limiting block 9 is provided on the side of the central long screw 2 near the closing plate 1. It is made of square steel components and has a round hole in the center so that the central long screw 2 can pass through. It is located at the junction of the closing plate 1 and the tail of the central long screw 2. Its main purpose is to limit the position of the closing plate 1 so that it cannot slide.

[0038] like Figure 5 As shown, the support plate 5 is an L-shaped steel plate with a protrusion on its short side that slides with the groove, and the bottom of its long side is hinged to the other end of the connecting rod 4 through a pin; the width of the groove and the protrusion of the support plate 5 form a radial sliding pair.

[0039] like Figure 6 As shown, a spring 8 and an inner sleeve 7 are sequentially fitted onto the front end of the central long screw 2. The spring 8 is made of steel components wound continuously in turns, and its two ends abut against the sealing plate 1 and the front cover plate of the protruding outer sleeve 3, respectively. The spring 8 provides a restoring force when the support plate 5 retracts and returns to its original position. The inner sleeve 7 is made of a hollow steel tube, and its size is such that it can be enclosed by the protruding outer sleeve.

[0040] like Figure 1 , 3 As shown, the drive component is a hand crank 6 inserted into the tail of the central long screw 2. The hand crank 6 is a Z-shaped structure composed of a hexagonal steel rod. The handle can be inserted into the hollow rod at the tail of the central long screw 2 and drives the central long screw 2 to move when rotated.

[0041] like Figure 3 , 5 As shown, the front cover of the protruding outer sleeve 3 is a detachable structure, which can be used to remove the protruding outer sleeve 3 for easy installation and maintenance.

[0042] A construction method based on the protective device described above, comprising the following steps:

[0043] S1. Assembly device: Pass the central long screw 2 through the threaded through hole of the closed plate 1, and install the protruding outer sleeve 3 at the front end;

[0044] S2, Connecting support assembly: The support strip 5 is embedded in the sliding groove, and the two ends of the connecting rod 4 are hinged to the protruding outer sleeve 3 and the support strip 5;

[0045] S3, Support Operation: Insert the device into the pipeline end, turn the hand crank 6 to drive the central long screw 2 forward, push the protruding outer sleeve 3 inward, and unfold the support strip 5 through the connecting rod 4;

[0046] S4. Disassembly operation: Rotate the hand crank 6 in the opposite direction to move the central long screw 2 backward, which will drive the protruding outer sleeve 3 to move outward, so that the support plate 5 can be radially contracted and then removed.

[0047] This application discloses a novel pre-embedded pipeline end shaping and protection device and its construction method. The mechanical radial expansion provides rigid support, which can resist concrete extrusion and reduce its deformation rate by 90%. The radial sliding pair of the groove and the protrusion can further ensure that the support plate does not move skewed. The crank operation saves manpower and can be disassembled and assembled by a single person. The structure is simple, the materials are readily available, the assembly is convenient, and it is reusable. It is suitable for end protection of various types of pre-embedded pipelines.

[0048] The embodiments of this application have been described in detail above. These descriptions are merely preferred embodiments and should not be construed as limiting the scope of this application. All equivalent variations and improvements made within the scope of this application should still fall within the patent coverage of this application.

Claims

1. A novel type of pre-embedded pipeline end shaping and protection device, characterized in that, include: A closed plate with a threaded through hole in the center and at least two intersecting grooves on the plate surface in the radial direction; a telescopic drive assembly including a central long screw threadedly connected to the closed plate, with a rotary drive component connected to its tail. The support assembly includes several support plates and connecting rods; One end of the support strip is slidably connected to the groove of the closed plate, and the other end is suspended. The two ends of the connecting rod are respectively hinged to the support plate and the front end of the telescopic drive assembly; The rotary drive component drives the central long screw to move axially, which in turn drives the telescopic drive assembly to move forward or backward, and pushes the support plate to expand or contract radially along the slide groove via the connecting rod.

2. The protective device according to claim 1, characterized in that, The enclosed plate has a square structure with rounded corners and a cross-shaped radial arrangement of grooves on it. The length of the grooves is less than half the side length of the square.

3. The protective device according to claim 1 or 2, characterized in that, The telescopic drive assembly includes: a protruding outer sleeve fitted onto the front end of the central long screw, with radially protruding plates evenly distributed around its outer wall; One end of the connecting rod is hinged to the protruding plate of the protruding outer sleeve.

4. The protective device according to claim 3, characterized in that, The support plate is L-shaped, with a protrusion on its short side that slides into the groove, and the bottom of its long side is hinged to the other end of the connecting rod via a pin.

5. The protective device according to claim 4, characterized in that, The width of the groove and the protrusions of the support plate form a radial sliding pair.

6. The protective device according to claim 3, characterized in that, The front end of the central long screw is fitted with a spring and an inner sleeve in sequence, with the two ends of the spring abutting against the sealing plate and the front end cover plate of the protruding outer sleeve, respectively; the spring provides a rebound force when the support plate retracts and resets.

7. The protective device according to claim 3, characterized in that, The rotary drive component is a hand crank handle inserted into the tail of the central long screw, and a limit block is provided at the tail.

8. The protective device according to claim 3, characterized in that, The front cover of the protruding outer sleeve is a detachable structure.

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