Tapered casing pipe taking device

Abstract

The invention discloses a conical casing pipe taking device which comprises a first round pipe, a second round pipe, a twisted spring and two steel sheets. Two windows are oppositely formed in the side wall of the first end of the first circular tube; a tip part is formed at the first end of the second circular tube; the second circular tube is arranged in the first circular tube; the twisted spring and the two steel sheets are mounted in the first end of the first circular tube; the first ends of the two steel sheets are connected through a twisted spring; during working, the tip part overcomes the elasticity of the twisted spring and is inserted between the second ends of the two steel sheets, and the second ends of the steel sheets extend out of the window and are in contact with the second end of the conical sleeve. During working, a worker only needs to stand in a poured outer wall for operation, a hammer does not need to be adopted for beating, the safety of the operator is guaranteed, and the construction efficiency is improved. In addition, due to the fact that the outer side of the conical sleeve is clamped through the steel sheet and then pulled backwards, knocking through a hammer is avoided, and damage to the sleeve and concrete is not prone to being caused.

Description

Technical Field

[0001] The invention relates to the technical field of template installation, and in particular to a conical casing pipe extraction device. Background Art

[0002] House construction projects need to use through-wall screws to reinforce the formwork during the formwork support process according to construction needs. In the early days, plastic wire tubes were generally used to cover the screws as protective sleeves for through-wall screws. Because the wire tubes were soft and easy to damage and did not have the support force, they were gradually phased out. With the development of technology, aluminum films are used in large quantities in house construction projects, and the sleeves are updated. At present, the tapered sleeves made of ABS raw materials are mainly used. The tapered sleeves made of this material have high strength and toughness, which can avoid leakage. Moreover, the tapered sleeves made of ABS raw materials can be reused more than 50 times, greatly reducing the cost of the overall project. The main function of the tapered sleeve is to be used in conjunction with the through-wall screws to tie the inner and outer formworks of the wall, withstand the lateral pressure of the concrete and other loads, and ensure that the spacing between the inner and outer formworks can meet the design requirements. In addition, the tapered sleeve can also replace traditional PVC pipes and cement supports, and the size control is more precise and the wall appearance is better.

[0003] However, it is difficult to remove these sleeves for recycling after the concrete is poured. Although there are special removal tools available on the market, these tools are usually made of carbon steel. When using, the tool is matched with the small end of the tapered tube, and then hammered with a hammer to make the sleeve evenly stressed and thus removed from the concrete. This operation method easily causes damage to the sleeve and concrete, and it is unsafe for personnel to operate on the external frame, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to develop a conical casing pipe extraction device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to design a conical casing pipe extraction device in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: Conical casing pipe extraction device, comprising: A first circular tube; two windows are oppositely arranged on the side wall of the first end of the first circular tube; A second circular tube; a first end of the second circular tube is formed with a tip; the second circular tube is placed inside the first circular tube; Hinged spring; Two steel sheets; the twist spring and the two steel sheets are installed inside the first end of the first round tube; the first ends of the two steel sheets are connected by the twist spring; under normal conditions, the second ends of the two steel sheets are closed, and when working, the tip overcomes the elastic force of the twist spring and is inserted between the second ends of the two steel sheets, and the second end of the steel sheet extends out of the window and contacts the second end of the conical sleeve, and the contact does not exceed the outer wall of the conical sleeve.

[0007] Furthermore, the conical casing pipe removal device also includes two blocks, which are respectively installed on the second ends of the two steel sheets. When the two blocks are respectively in close contact with the inner wall of the first circular tube, the contact between the second end of the steel sheet and the second end of the conical casing does not exceed the outer wall of the conical casing.

[0008] Specifically, the conical casing pipe removal device also includes a first spring and an elastic clamping block. The first spring is sleeved on the side wall of the first circular tube, and the first end of the first spring is connected to the outer side wall of the first circular tube, and the second end of the first spring is connected to the inner side wall of the second circular tube; a first clamping hole and a second clamping hole are arranged on the side wall of the second end of the second circular tube along the axial direction, and the first clamping hole is arranged close to the second end of the second circular tube. The first end of the elastic clamping block is installed on the side wall of the second circular tube, and the second end of the elastic clamping block is used to clamp with the first clamping hole or the second clamping hole; when the first spring is in a normal state, the second end of the elastic clamping block is clamped with the second clamping hole, and the tip is inserted between the second ends of the two steel sheets. When the first spring is in a stretched state, the second end of the elastic clamping block is clamped with the first clamping hole, and the tip is placed in the first circular tube and does not contact the steel sheet.

[0009] Specifically, the conical casing pipe extraction device also includes a first fixing ring and a second fixing ring. The first fixing ring, the second fixing ring, and the second round tube are axially arranged. The first fixing ring is installed on the inner wall of the first round tube, and the second fixing ring is installed on the outer wall of the first round tube. The first spring is placed between the first fixing ring and the second fixing ring.

[0010] Specifically, the conical casing pipe extraction device also includes a third circular tube, a shell, a gear set, a rack, and a power device. The first end of the third circular tube is connected to the first end of the shell. Two circular holes are relatively arranged on the first end and the second end of the shell. The first circular tube can slide through the third circular tube and the two circular holes. The gear set is installed in the shell. The rack is installed on the side wall of the first circular tube and placed in the shell. The rack is parallel to the first circular tube. The rack is meshed with the output end of the gear set. The power device is placed outside the shell, and the output end of the power device is connected to the input end of the gear set.

[0011] Specifically, the gear set includes a first gear, a second gear, a third gear, a first connecting shaft, and a second connecting shaft. The first gear and the second gear are fixedly mounted on the first connecting shaft. The first end of the first connecting shaft and the first end of the second connecting shaft are rotatably mounted on the housing. The third gear is mounted on the second connecting shaft. The first gear and the third gear are meshed, and the second end of the second connecting shaft is connected to the output end of the power equipment.

[0012] Specifically, the conical casing pipe removal device also includes a battery, a motor, and a convex slot wheel. The second end of the second connecting shaft is connected to the concave slot wheel, the rotating shaft of the motor is connected to the convex slot wheel, the convex slot wheel is engaged with the concave slot wheel, the motor is installed on the outer wall of the shell, the battery is installed at the tail of the motor, and the battery is electrically connected to the motor.

[0013] Specifically, three plug rods are installed at the head end of the motor, and the three plug rods form a V shape. Correspondingly, three slots are provided on the shell, and the three plug rods are respectively engaged with the three slots.

[0014] Specifically, the conical casing pipe removal device also includes a second spring and a third fixing ring. The second spring and the third fixing ring are both placed in the shell. The second spring is sleeved on the first round tube and the second spring is placed between the third fixing ring and the inner wall of the second end of the shell.

[0015] Specifically, the conical casing pipe extraction device also includes a handle, which is installed on the second end of the first round pipe.

[0016] The beneficial effects of the present invention are: During the application work, the personnel only need to stand inside the poured exterior wall to operate, and there is no need to use a hammer to knock. The safety of the operators is guaranteed and the construction efficiency is improved.

[0017] In addition, because the device uses a steel sheet to clamp the outer side of the conical casing and then pulls it back, it avoids hitting with a hammer and is not easy to cause damage to the casing and concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention (cross-section); Figure 2 It is a structural schematic diagram of the steel sheet in the present invention; Figure 3 It is a schematic diagram of the installation position of the steel sheet in the present invention; Figure 4 It is a schematic diagram of the structure of the rack in the present invention; Figure 5 This is a schematic diagram of the structure in which the first circular tube portion enters the conical sleeve in the present invention; Figure 6 This is a schematic diagram of the structure of the first round tube arriving at the working position in the present invention; Figure 7 It is a schematic structural diagram of the rotating shaft in the present invention; Figure 8 It is a structural schematic diagram of the motor in the present invention; Fig. 9 It is a schematic diagram of the structure of the convex groove wheel in the present invention; Fig.10 It is a structural schematic diagram of the hand crank in the present invention; Fig.11 It is a schematic diagram of the structure of the concave slot wheel in the present invention; Fig.12 is a top view of the elastic card block in the present invention; Fig.13 It is a side view of the elastic block in the present invention.

[0019] In the figure: 1: twist spring, 2: tip, 3: steel sheet, 4: stopper, 5: first fixing ring, 6: first round tube, 61: window, 7: first spring, 8: second fixing ring, 9: second round tube, 10: third round tube, 11: shell, 12: support pad, 13: rack, 14: first gear, 15: second gear, 16: third gear, 17: third fixing ring, 18: second spring, 19: round hole, 20: elastic block, 21: handle, 22: slot, 23: rotating shaft, 24: battery, 25: motor, 26: plug rod, 27: convex slot wheel, 28: two-way power switch, 29: concave slot wheel, 30: hand crank, 31: fixing screw, 32: first slot hole, 33: second slot hole, 34: concrete wall, 35: tapered sleeve. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-13 As shown, the conical casing pipe extraction device comprises: A first circular tube 6; two windows 61 are oppositely arranged on the side wall of the first end of the first circular tube 6; A second circular tube 9; a first end of the second circular tube 9 is formed with a tip 2; the second circular tube 9 is placed inside the first circular tube 6; Hinged spring 1; Two steel sheets 3; the twist spring 1 and the two steel sheets 3 are installed inside the first end of the first round tube 6; the first ends of the two steel sheets 3 are connected by the twist spring 1; under normal conditions, the second ends of the two steel sheets 3 are closed, and when working, the tip 2 overcomes the elastic force of the twist spring 1 and is inserted between the second ends of the two steel sheets 3, and the second end of the steel sheet 3 extends out of the window 61 and contacts with the second end of the tapered sleeve 35, and the contact does not exceed the outer wall of the tapered sleeve 35.

[0028] In some embodiments, Figure 2 As shown, the conical sleeve 35 pipe removal device also includes two blocks 4, which are respectively installed on the second ends of the two steel sheets 3. When the two blocks 4 are respectively in close contact with the inner wall of the first circular tube 6, the contact point between the second end of the steel sheet 3 and the second end of the conical sleeve 35 does not exceed the outer wall of the conical sleeve 35.

[0029] In some embodiments, Figure 3 As shown, when the steel sheet 3 is pressed against the upper end of the window 61 , the contact point between the second end of the steel sheet 3 and the second end of the tapered sleeve 35 does not exceed the outer wall of the tapered sleeve 35 .

[0030] In some embodiments, Figure 1 and 2 As shown in 12 and 13, the conical sleeve 35 pipe removal device also includes a first spring 7 and an elastic block 20. The first spring 7 is sleeved on the side wall of the first circular tube 6, and the first end of the first spring 7 is connected to the outer side wall of the first circular tube 6, and the second end of the first spring 7 is connected to the inner side wall of the second circular tube 9; a first clamping hole 32 and a second clamping hole 33 are arranged on the side wall of the second end of the second circular tube 9 along the axial direction, the first clamping hole 32 is arranged close to the second end of the second circular tube 9, the first end of the elastic clamping block 20 is installed on the side wall of the second circular tube 9, and the second end of the elastic clamping block 20 is used to clamp with the first clamping hole 32 or the second clamping hole 33; when the first spring 7 is in a normal state, the second end of the elastic clamping block 20 is clamped with the second clamping hole 33, and the tip 2 is inserted between the second ends of the two steel sheets 3. When the first spring 7 is in a stretched state, the second end of the elastic clamping block 20 is clamped with the first clamping hole 32, and the tip 2 is placed in the first circular tube 6 and does not contact the steel sheet 3.

[0031] In some embodiments, Figure 2 As shown, the conical sleeve 35 pipe removal device also includes a first fixing ring 5 and a second fixing ring 8. The first fixing ring 5, the second fixing ring 8 and the second circular tube 9 are axially arranged. The first fixing ring 5 is installed on the inner wall of the first circular tube 6, and the second fixing ring 8 is installed on the outer wall of the first circular tube 6. The first spring 7 is placed between the first fixing ring 5 and the second fixing ring 8.

[0032] In some embodiments, Figure 1 and 4 As shown, the conical sleeve 35 pipe removal device also includes a third round tube 10, a shell 11, a gear set, a rack 13, and a power device. The first end of the third round tube 10 is connected to the first end of the shell 11. Two round holes 19 are arranged on the first and second ends of the shell 11. The first round tube 6 can slide through the third round tube 10 and the two round holes 19. The gear set is installed in the shell 11. The rack 13 is installed on the side wall of the first round tube 6 and placed in the shell 11. The rack 13 is parallel to the first round tube 6. The rack 13 is meshed with the output end of the gear set. The power device is placed outside the shell 11, and the output end of the power device is connected to the input end of the gear set. A plurality of support pads 12 of the same height are arranged at the bottom of the shell 11. The first round tube can be slidably placed above the plurality of support pads 12. The support pads 12 serve to support and increase the height of the first round tube.

[0033] In some embodiments, Figure 4As shown, the gear set includes a first gear 14, a second gear 15, a third gear 16, a first connecting shaft, and a second connecting shaft. The first gear 14 and the second gear 15 are both fixedly mounted on the first connecting shaft. The first end of the first connecting shaft and the first end of the second connecting shaft are rotatably mounted on the housing 11. The third gear 16 is mounted on the second connecting shaft. The first gear 14 and the third gear 16 are meshed, and the second end of the second connecting shaft is connected to the output end of the power device. The structural design of the gear set mainly considers the need for high torque output. The size of the third gear 16 needs to be smaller than the first gear 14. The specific size is determined according to the force required to pull out the tapered sleeve 35 and the output force of the motor 25.

[0034] In some embodiments, Figure 7 and 8 As shown in FIGS. 9 and 11 , the conical sleeve 35 tube removal device further includes a battery 24, a motor 25, a convex slot wheel 17, a concave slot wheel 29 is connected to the second end of the second connecting shaft, a rotating shaft 23 of the motor 25 is connected to the convex slot wheel 17, the convex slot wheel 17 is engaged with the concave slot wheel 29, the motor 25 is mounted on the outer wall of the housing 11, the battery 24 is mounted at the tail of the motor 25, and the battery 24 is electrically connected to the motor 25. In some embodiments, the conical sleeve 35 tube removal device further includes a two-way power switch 28, which is connected to the connection circuit between the battery 24 and the motor 25, and is used to control the power supply of the battery 24 to the motor 25.

[0035] In some embodiments, Figure 7 and 8 As shown, three plug rods 26 are installed at the head end of the motor 25, and the three plug rods 26 are surrounded in a V shape. Correspondingly, three slots 22 are provided on the housing 11, and the three plug rods 26 are respectively engaged with the three slots 22. The side panel of the housing 11 itself is installed on the main body of the housing 11 by fixing screws 31, and the three slots 22 are provided on the side panel.

[0036] In some embodiments, Figure 4 As shown, the conical sleeve 35 tube removal device also includes a second spring 18 and a third fixing ring 17. The second spring 18 and the third fixing ring 17 are both placed in the shell 11. The second spring 18 is sleeved on the first circular tube 6. The second spring 18 is placed between the third fixing ring 17 and the inner wall of the second end of the shell 11.

[0037] In some embodiments, Figure 1 As shown, the conical sleeve 35 pipe removal device also includes a handle 21, and the handle 21 is installed on the second end of the first round tube 6.

[0038] In some embodiments, Fig.10As shown, a Z-shaped hand crank 30 is shown, one end of which is connected to a convex groove wheel 17, and the convex groove wheel 17 is engaged with the concave groove wheel 29, so that the rotation of the gear set can be manually controlled by the hand crank 30. The hand crank 30 can be used as an emergency replacement when the motor 25 fails to work.

[0039] After the components are assembled, the battery 24 is charged or the motor 25 is directly connected to the mains. After the template is removed, the first round tube 6 at the front end of the device is inserted into the hole of the conical sleeve 35 so that the tail end of the steel sheet 3 exceeds the outer edge of the conical sleeve 35. Press the elastic block 20 located in the first clamping hole 32. Under the action of the rebound force of the first spring 7, the tip 2 of the second round tube 9 extends to open the two steel sheets 3 until the block 4 is tightly attached to the inner wall of the first round tube 6. At this time, the elastic block 20 is clamped into the second clamping hole 33 (the tail end of the second round tube 9 will not completely enter the tail end of the first round tube 6 during the whole process. It is necessary to move the elastic block 20 from the second clamping hole 33 to the first clamping hole 32. You only need to press the elastic block 20 and then pull the second round tube 9 backwards). Hold the handle 21 with your right hand and press the third round tube 10 with your left hand to support the concrete surface. Check whether the device is perpendicular to the concrete surface and other conditions. After ensuring that there are no errors, start the motor 25 or crank the hand crank 30, the gear set rotates, and then drives the rack 13 to move, the rack 13 drives the first round tube 6 to move backward, the first round tube 6 drives the second round tube 9 and the steel sheet 3 to move backward to achieve the backward pulling of the tapered sleeve 35, and finally pull the tapered sleeve 35 out of the concrete wall 34; during the pulling out process of the tapered sleeve 35, the second spring 18 is compressed, and after the tapered sleeve 35 is completely pulled out, the power acting on the gear set is disconnected, and the posture of the entire device is reset under the action of the second spring 18.

[0040] In this solution, workers do not need to go up the external frame to remove the pipe, and do not need to use hammers to damage the conical casing 35 and concrete. The operation process saves time and effort, and the efficiency is improved by about 60% compared with the traditional solution.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Conical casing pipe extraction device, characterized in that: include: First round tube; Two windows are arranged opposite to each other on the side wall of the first end of the first circular tube; The second round tube; A tip is formed at the first end of the second circular tube; the second circular tube is placed inside the first circular tube; Hinged spring; Two steel sheets; the twist spring and the two steel sheets are installed inside the first end of the first round tube; the first ends of the two steel sheets are connected by the twist spring; under normal conditions, the second ends of the two steel sheets are closed, and when working, the tip overcomes the elastic force of the twist spring and is inserted between the second ends of the two steel sheets, and the second end of the steel sheet extends out of the window and contacts the second end of the conical sleeve, and the contact does not exceed the outer wall of the conical sleeve.

2. The conical casing extraction device according to claim 1, characterized in that: The conical casing pipe removal device also includes two blocks, which are respectively installed on the second ends of the two steel sheets. When the two blocks are respectively in close contact with the inner wall of the first round tube, the contact between the second end of the steel sheet and the second end of the conical casing does not exceed the outer wall of the conical casing.

3. The conical casing extraction device according to claim 1, characterized in that: The conical casing pipe removal device also includes a first spring and an elastic clamping block. The first spring is sleeved on the side wall of the first circular tube, and the first end of the first spring is connected to the outer side wall of the first circular tube, and the second end of the first spring is connected to the inner side wall of the second circular tube; a first clamping hole and a second clamping hole are arranged on the side wall of the second end of the second circular tube along the axial direction, the first clamping hole is arranged close to the second end of the second circular tube, the first end of the elastic clamping block is installed on the side wall of the second circular tube, and the second end of the elastic clamping block is used to clamp with the first clamping hole or the second clamping hole; when the first spring is in a normal state, the second end of the elastic clamping block is clamped with the second clamping hole, and the tip is inserted between the second ends of the two steel sheets. When the first spring is in a stretched state, the second end of the elastic clamping block is clamped with the first clamping hole, and the tip is placed in the first circular tube and does not contact the steel sheet.

4. The conical casing extraction device according to claim 3, characterized in that: The conical casing pipe extraction device also includes a first fixing ring and a second fixing ring. The first fixing ring, the second fixing ring and the second round tube are arranged through the axis. The first fixing ring is installed on the inner wall of the first round tube, the second fixing ring is installed on the outer wall of the first round tube, and the first spring is placed between the first fixing ring and the second fixing ring.

5. The conical casing extraction device according to claim 1, characterized in that: The conical casing pipe extraction device also includes a third circular tube, a shell, a gear set, a rack, and a power device. The first end of the third circular tube is connected to the first end of the shell. Two circular holes are arranged opposite to each other on the first end and the second end of the shell. The first circular tube can slide through the third circular tube and the two circular holes. The gear set is installed in the shell. The rack is installed on the side wall of the first circular tube and placed in the shell. The rack is parallel to the first circular tube. The rack is meshed with the output end of the gear set. The power device is placed outside the shell, and the output end of the power device is connected to the input end of the gear set.

6. The conical casing extraction device according to claim 5, characterized in that: The gear set includes a first gear, a second gear, a third gear, a first connecting shaft, and a second connecting shaft. The first gear and the second gear are fixedly mounted on the first connecting shaft. The first end of the first connecting shaft and the first end of the second connecting shaft are rotatably mounted on the housing. The third gear is mounted on the second connecting shaft. The first gear and the third gear are meshed. The second end of the second connecting shaft is connected to the output end of the power equipment.

7. The conical casing extraction device according to claim 6, characterized in that: The conical casing pipe removal device also includes a battery, a motor, and a convex slot wheel. The second end of the second connecting shaft is connected to the concave slot wheel, the rotating shaft of the motor is connected to the convex slot wheel, the convex slot wheel is engaged with the concave slot wheel, the motor is installed on the outer wall of the shell, the battery is installed at the tail of the motor, and the battery is electrically connected to the motor.

8. The conical casing extraction device according to claim 7, characterized in that: Three plug rods are installed at the head end of the motor, and the three plug rods form a V shape. Correspondingly, three slots are arranged on the shell, and the three plug rods are respectively engaged with the three slots.

9. The conical casing extraction device according to claim 5, characterized in that: The conical casing pipe removal device also includes a second spring and a third fixing ring. The second spring and the third fixing ring are both placed in the shell. The second spring is sleeved on the first round tube and is placed between the third fixing ring and the inner wall of the second end of the shell.

10. The conical casing extraction device according to claim 1, characterized in that: The conical casing pipe extracting device also includes a handle, which is installed on the second end of the first round pipe.

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