Track flat-opening semi-automatic contraction type mold

Abstract

The utility model discloses a track flat-opening semi-automatic contraction type mold which comprises a bottom shell, two arc-shaped plates which are symmetrically distributed are arranged above the bottom shell, sliding tracks which are symmetrically arranged are arranged at the top of the bottom shell, pulleys are arranged at the bottoms of the two arc-shaped plates, the pulleys are located in the sliding tracks, and the two arc-shaped plates are arranged on the bottom shell. Two arc-shaped plates are fixedly installed on the top of the bottom shell, an inner pipe located between the two arc-shaped plates is fixedly installed on the top of the bottom shell, a hollow pipe rotationally connected with the top of the bottom shell is arranged in the inner pipe, two inner discs located in the inner pipe are fixedly installed on the outer side wall of the hollow pipe, four inward folding mechanisms are arranged in the inner pipe, and a driving mechanism is arranged on the bottom shell. By arranging the driving mechanism and the inward retracting mechanism, outward expansion or inward retraction of the four inward retracting blocks can be achieved by rotating the rotating handle, so that the inward retracting blocks can be rapidly separated from the inner wall of a formed pipeline, operation is easy and convenient, working efficiency is improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of building material production, in particular to a track flat-opening semi-automatic shrinking mold. Background Art

[0002] Inspection wells are set up for the maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage, communication, cable TV, gas pipes, street light lines, etc., and are easy to install. They are generally set up at pipeline intersections, bends, places where pipe diameters or slopes change, and at regular intervals on straight pipe sections to facilitate regular inspection of ancillary structures.

[0003] The existing cylindrical concrete pipes such as inspection wells are basically produced by casting using molds. When the existing pipe casting molds are used, after the cast concrete solidifies, the pipe is in close contact with the inner shell after solidification, and the friction is huge, making it difficult to separate the two. The concrete pipe is often damaged during the separation process, which is very inconvenient to use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a track flat-opening semi-automatic shrinking mold.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The track-opening semi-automatic shrinking mold comprises a bottom shell, two symmetrically distributed arc plates are arranged above the bottom shell, a symmetrically arranged sliding track is opened on the top of the bottom shell, pulleys are arranged at the bottom of the two arc plates, and the pulleys are located in the sliding track, an inner tube located between the two arc plates is fixedly installed on the top of the bottom shell, a hollow tube rotatably connected to the top of the bottom shell is arranged in the inner tube, two inner disks located in the inner tube are fixedly installed on the outer wall of the hollow tube, four retracting mechanisms are arranged in the inner tube, and a driving mechanism is arranged on the bottom shell.

[0007] Preferably, the retraction mechanism includes a mounting block provided in the inner tube, movement grooves are provided on the two inner disks, connecting blocks slidably connected thereto are provided through the two movement grooves, the mounting block is fixedly installed between the two connecting blocks, a matching groove is provided on the inner tube, and a retraction block is fixedly installed on a side wall of the connecting block away from the hollow tube.

[0008] Preferably, the driving mechanism includes a rotating shaft which is penetrated through an inner wall of one side of the bottom shell and rotatably connected to the bottom shell, a mounting plate is fixedly mounted on one end of the rotating shaft located in the bottom shell, a mounting cylinder is rotatably mounted on a side wall of the mounting plate away from the rotating shaft, a connecting rod which is slidably connected to the top of the bottom shell is penetrated through, a limiting frame is fixedly mounted on one end of the connecting rod located in the bottom shell, a driving block located in the hollow tube is fixedly mounted on one end of the connecting rod located on the bottom shell, a displacement groove is opened on the outer side wall of the driving block, a displacement block is fixedly mounted on the inner wall of the hollow tube, the displacement block is located in the displacement groove and slidably connected to the inner wall of the displacement groove.

[0009] Preferably, the retracted block is matched with the matching slot, and the movement slot is arc-shaped.

[0010] Preferably, the mounting cylinder passes through the limiting frame and is slidably connected to the inner wall of the limiting frame.

[0011] Preferably, the displacement groove is arc-shaped and extends along the axis of the hollow tube, and a rotary handle is fixedly mounted on one end of the rotating shaft located outside the bottom shell.

[0012] Beneficial effects of the utility model:

[0013] By setting up a driving mechanism and an inner retraction mechanism, the four inner retraction blocks can be expanded outward or retracted inward by turning the handle, so that they can be quickly separated from the inner wall of the formed pipe. The operation is simple and convenient, the work efficiency is improved, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the track-opening semi-automatic shrinking mold proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of the track-opening semi-automatic shrinking mold proposed by the utility model;

[0016] Figure 3 It is a plan view of the partial structure of the driving mechanism of the utility model;

[0017] Figure 4 It is a schematic diagram of the planar structure of the hollow tube and the displacement block of the utility model.

[0018] In the figure: 1 bottom shell, 2 sliding track, 3 pulley, 4 arc plate, 5 inner tube, 6 inner receiving block, 7 inner disk, 8 movement groove, 9 connecting block, 10 hollow tube, 11 matching groove, 12 mounting block, 13 rotary handle, 14 displacement block, 15 driving block, 16 displacement groove, 17 connecting rod, 18 limit frame, 19 mounting cylinder, 20 mounting disk, 21 rotating shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 4 The track-opening semi-automatic shrinking mold comprises a bottom shell 1, two symmetrically distributed arc plates 4 are arranged above the bottom shell 1, a symmetrically arranged sliding track 2 is opened on the top of the bottom shell 1, pulleys 3 are arranged at the bottom of the two arc plates 4, the pulleys 3 are located in the sliding track 2, an inner tube 5 located between the two arc plates 4 is fixedly installed on the top of the bottom shell 1, a hollow tube 10 rotatably connected to the top of the bottom shell 1 is arranged in the inner tube 5, and a hollow tube 10 located in the inner tube 5 is fixedly installed on the outer wall of the hollow tube 10. Two inner plates 7, four retracting mechanisms are arranged in the inner tube 5, the retracting mechanism includes a mounting block 12 arranged in the inner tube 5, a movement groove 8 is arranged on the two inner plates 7, and a connecting block 9 is arranged in the two movement grooves 8 to be slidably connected thereto, the mounting block 12 is fixedly installed between the two connecting blocks 9, a matching groove 11 is arranged on the inner tube 5, and a retracting block 6 is fixedly installed on a side wall of the connecting block 9 away from the hollow tube 10, the retracting block 6 is adapted to the matching groove 11, and the movement groove 8 is arc-shaped;

[0021] The bottom shell 1 is provided with a driving mechanism, which includes a rotating shaft 21 which is arranged on one side inner wall of the bottom shell 1 and is rotatably connected to the bottom shell 1. A mounting plate 20 is fixedly installed on one end of the rotating shaft 21 located in the bottom shell 1. A mounting cylinder 19 is rotatably installed on a side wall of the mounting plate 20 away from the rotating shaft 21. A connecting rod 17 which is slidably connected to the connecting rod 17 is arranged on the top of the bottom shell 1. A limit frame 18 is fixedly installed on one end of the connecting rod 17 located in the bottom shell 1. One end of the connecting rod 17 located on the bottom shell 1 A driving block 15 is fixedly installed in the hollow tube 10, and a displacement groove 16 is opened on the outer wall of the driving block 15. A displacement block 14 is fixedly installed on the inner wall of the hollow tube 10. The displacement block 14 is located in the displacement groove 16 and is slidably connected to the inner wall of the displacement groove 16. The mounting cylinder 19 passes through the limit frame 18 and is slidably connected to the inner wall of the limit frame 18. The displacement groove 16 is arc-shaped and extends along the axis of the hollow tube 10. A handle 13 is fixedly installed on one end of the rotating shaft 21 located outside the bottom shell 1.

[0022] When the utility model is used, the two arc plates 4 are brought close to each other to form a full circle, and then concrete is poured into the cavity between the arc plate 4 and the inner tube 5. After the poured concrete is completely solidified, the rotating shaft 21 is rotated in one direction by turning the rotary handle 13, and the rotating shaft 21 rotates to drive the mounting plate 20 to rotate, thereby rotating the mounting cylinder 19 around the axis of the rotating shaft 21. During the rotation process, the mounting cylinder 19 will slide in the limit frame 18, and the limit frame 18 will move downward. By setting the connecting rod 17, the driving block 15 can move downward, thereby causing the displacement block 14 to be in position. When the displacement block 14 slides in the displacement groove 16, the hollow tube 10 will rotate, thereby causing the two inner disks 7 to rotate. When the inner disks 7 rotate, the connecting block 9 will slide in the moving groove 8, thereby causing the four mounting blocks 12 to shrink inward, and finally causing the four inner retraction blocks 6 to shrink inward. When the four inner retraction blocks 6 shrink inward, they can be separated from the inner wall of the formed pipe. The mold can be completely separated from the pipe by lifting the mold. When the rotary handle 13 is turned to cause the rotating shaft 21 to rotate in another direction, the four inner retraction blocks 6 will expand outward to facilitate the pouring of concrete.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A semi-automatic shrinkable mold for horizontal opening of a track, comprising a bottom shell (1), characterized in that: Two symmetrically distributed arc-shaped plates (4) are arranged above the bottom shell (1); a symmetrically arranged sliding track (2) is opened at the top of the bottom shell (1); pulleys (3) are arranged at the bottom of the two arc-shaped plates (4); the pulleys (3) are located in the sliding track (2); an inner tube (5) located between the two arc-shaped plates (4) is fixedly installed at the top of the bottom shell (1); a hollow tube (10) rotatably connected to the top of the bottom shell (1) is arranged in the inner tube (5); two inner disks (7) located in the inner tube (5) are fixedly installed on the outer wall of the hollow tube (10); four retracting mechanisms are arranged in the inner tube (5); and a driving mechanism is arranged on the bottom shell (1).

2. The track flat opening semi-automatic shrinking mold according to claim 1 is characterized in that: The retracting mechanism comprises a mounting block (12) disposed in the inner tube (5), a movement groove (8) is disposed on each of the two inner plates (7), a connecting block (9) slidably connected thereto is penetrated through each of the two movement grooves (8), the mounting block (12) is fixedly mounted between the two connecting blocks (9), a matching groove (11) is disposed on the inner tube (5), and a retracting block (6) is fixedly mounted on a side wall of the connecting block (9) away from the hollow tube (10).

3. The track flat opening semi-automatic shrinking mold according to claim 1 is characterized in that: The driving mechanism comprises a rotating shaft (21) which is arranged through an inner wall of one side of the bottom shell (1) and is rotatably connected to the bottom shell (1); a mounting plate (20) is fixedly mounted on one end of the rotating shaft (21) located in the bottom shell (1); a mounting cylinder (19) is rotatably mounted on a side wall of the mounting plate (20) away from the rotating shaft (21); a connecting rod (17) is arranged through the top of the bottom shell (1) and is slidably connected to the connecting rod; a limiting frame (18) is fixedly mounted on one end of the connecting rod (17) located in the bottom shell (1); a driving block (15) located in the hollow tube (10) is fixedly mounted on one end of the connecting rod (17) located on the bottom shell (1); a displacement groove (16) is provided on the outer wall of the driving block (15); a displacement block (14) is fixedly mounted on the inner wall of the hollow tube (10); the displacement block (14) is located in the displacement groove (16) and is slidably connected to the inner wall of the displacement groove (16).

4. The track flat opening semi-automatic shrinking mold according to claim 2, characterized in that: The retracted block (6) is matched with the matching groove (11), and the moving groove (8) is arc-shaped.

5. The track flat opening semi-automatic shrinking mold according to claim 3 is characterized in that: The installation cylinder (19) passes through the limiting frame (18) and is slidably connected to the inner wall of the limiting frame (18).

6. The track flat opening semi-automatic shrinking mold according to claim 3, characterized in that: The displacement groove (16) is arc-shaped and extends along the axis of the hollow tube (10); a rotary handle (13) is fixedly mounted on one end of the rotating shaft (21) located outside the bottom shell (1).

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