Positioning device for small-caliber prefabricated heat preservation nodular cast iron pipe

Abstract

The utility model relates to a small-caliber prefabricated heat preservation nodular cast iron pipe positioning device, which belongs to the technical field of nodular cast iron pipe positioning and comprises a fixed mounting column, four limiting supporting rods are rotatably mounted on the surface of the fixed mounting column, and an outer supporting plate is rotatably mounted at one end of each limiting supporting rod. According to the positioning device for the small-caliber prefabricated heat preservation nodular cast iron pipe, the outer supporting plate is clamped on the inner side wall of the installed small-caliber prefabricated heat preservation nodular cast iron pipe, the positioning block abuts against one side of the small-caliber prefabricated heat preservation nodular cast iron pipe, then a new small-caliber prefabricated heat preservation nodular cast iron pipe is in butt joint, and positioning is conducted through the positioning block; and after installation is completed, the control shaft drives the control top plate to move, drives the control connecting rod to move, drives the supporting connecting rod to rotate and drives the outer supporting plate to retract inwards, so that the positioning blocks are retracted into the small-caliber prefabricated heat preservation nodular cast iron pipes, and the positioning device is convenient to retract.

Description

TECHNICAL FIELD

[0001] The utility model relates to nodular cast iron pipe positioning technical field, concretely is small diameter prefabricated heat preservation nodular cast iron pipe positioning device. BACKGROUND

[0002] Nodular cast iron pipe is a kind of pipe material by adding spheroidizing agent and inoculant in molten iron, through centrifugal nodular cast iron machine high-speed centrifugal casting, nodular cast iron pipe is called ball tube, nodular cast iron pipe and nodular cast pipe etc., nodular cast iron pipe contains carbon, silicon, manganese, sulfur, phosphorus and magnesium etc., nodular cast iron pipe has high strength, high elongation, impact resistance and corrosion resistance, annealed metallographic structure is ferrite plus a small amount of pearlite, mainly used in municipal works mining enterprise water supply, gas and oil engineering, due to its excellent mechanical properties and corrosion resistance, also applicable to the delivery of sewage.

[0003] In the construction of city central heating, cooling and various industrial fluid conveying pipe network, small diameter prefabricated heat preservation nodular cast iron pipe is widely used due to its good corrosion resistance, mechanical strength and heat preservation performance.

[0004] However, when laying small diameter prefabricated heat preservation nodular cast iron pipe, construction personnel need to adjust the position of the pipeline, butt joint two sections of pipeline, and a gap needs to be reserved between two sections of small diameter prefabricated heat preservation nodular cast iron pipe during butt joint, which is difficult to control inside the gap connection node, and a lot of time and energy is needed for calibration, which seriously restricts construction progress, therefore, the small diameter prefabricated heat preservation nodular cast iron pipe positioning device is proposed. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides small diameter prefabricated heat preservation nodular cast iron pipe positioning device, has the advantages such as the gap left in the connection of two sections of small diameter prefabricated heat preservation nodular cast iron pipe, solves the problem that when laying small diameter prefabricated heat preservation nodular cast iron pipe, construction personnel need to adjust the position of the pipeline, butt joint two sections of pipeline, and a gap needs to be reserved between two sections of small diameter prefabricated heat preservation nodular cast iron pipe during butt joint, which is difficult to control inside the gap connection node, and a lot of time and energy is needed for calibration, which seriously restricts construction progress.

[0006] To achieve the above object, the utility model provides the following technical scheme: small diameter prefabricated heat preservation nodular cast iron pipe positioning device, including fixed mounting column, the surface of fixed mounting column is rotatably installed with four limit support rods, one end of limit support rod is rotatably installed with outer support plate, the outside of outer support plate is fixedly installed with positioning block, the surface of fixed mounting column is rotatably installed with four support connecting rods, one end of support connecting rod is rotatably connected with the inside of outer support plate, the one side of support connecting rod is rotatably installed with control connecting rod, one end of support connecting rod is rotatably installed with mobile end plate.

[0007] Furthermore, a control shaft is provided on one side of the mobile end plate, and a connecting plate is bolted to one end of the control shaft by a connecting bolt located at the center of one end of the control shaft.

[0008] Furthermore, a limiting bolt is provided on one side of the connecting plate, and the limiting bolt is threadedly connected to one side of the movable end plate.

[0009] Furthermore, a mounting plate is fitted onto the surface of the control shaft, and a control top plate is fixedly mounted on one end of the control shaft.

[0010] Furthermore, two control screws are rotatably mounted on one side of the control top plate. The control screws are threadedly connected to the fixed mounting plate, and a limit end plate is fixedly mounted on one end of the control screw.

[0011] Furthermore, two driven pulleys are rotatably mounted on one side of the fixed mounting plate, one end of the control screw is fixedly connected to the driven pulleys, and the two driven pulleys are connected by belt drive.

[0012] Furthermore, a rotating knob is fixedly installed on one side of the driven pulley, an installation tube is fixedly installed between the fixed mounting plate and the fixed mounting column, and a hydraulic support rod is fixedly installed at the bottom of the installation tube.

[0013] Compared with the prior art, this utility model provides a positioning device for small-diameter pre-insulated ductile iron pipes, which has the following beneficial effects:

[0014] This positioning device for small-diameter prefabricated insulated ductile iron pipes uses a limiting support rod on the surface of a fixed mounting column. An outer support plate is installed at one end of the limiting support rod, and a positioning block is installed on the outer side of the outer support plate. The outer support plate is clamped onto the inner wall of the installed small-diameter prefabricated insulated ductile iron pipe, and the positioning block rests against one side of the small-diameter prefabricated insulated ductile iron pipe. New small-diameter prefabricated insulated ductile iron pipes are then joined together, positioned by the positioning block, leaving a gap at one end between the two pipes. After installation, the control shaft... The movement of the top control plate moves the control linkage, which in turn rotates the support linkage, causing the outer support plate to retract inward. This allows the positioning block to be retracted into the small-diameter prefabricated insulated ductile iron pipe, facilitating the retraction of the positioning device. This solves the problem that during the laying of small-diameter prefabricated insulated ductile iron pipes, construction workers need to adjust the pipe position and connect two pipe sections. During the connection, a certain gap needs to be left between the two sections of small-diameter prefabricated insulated ductile iron pipes. This gap is difficult to control inside the connection node, requiring a lot of time and effort for calibration, which seriously restricts the construction progress. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation of the positioning block of this utility model;

[0017] Figure 3 This is a front sectional view of the positioning block of this utility model;

[0018] Figure 4 This is a side view of the positioning block of this utility model;

[0019] Figure 5 This is a three-dimensional view of the control top plate of this utility model.

[0020] In the diagram: 1. Fixed mounting column; 2. Limiting support rod; 3. Outer support plate; 4. Positioning block; 5. Support connecting rod; 6. Control connecting rod; 7. Moving end plate; 8. Control shaft; 9. Connecting plate; 10. Connecting bolt; 11. Limiting bolt; 12. Fixed mounting plate; 13. Control top plate; 14. Control screw; 141. Limiting end plate; 15. Driven pulley; 16. Rotating knob; 17. Mounting tube; 18. Supporting hydraulic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 A positioning device for small-diameter prefabricated insulated ductile iron pipes includes a fixed mounting column 1. Four limiting support rods 2 are rotatably mounted on the surface of the fixed mounting column 1. An outer support plate 3 is rotatably mounted on one end of each limiting support rod 2. A positioning block 4 is fixedly mounted on the outer side of the outer support plate 3. Four support connecting rods 5 are rotatably mounted on the surface of the fixed mounting column 1. One end of each support connecting rod 5 is rotatably connected to the inner side of the outer support plate 3. A control connecting rod 6 is rotatably mounted on one side of each support connecting rod 5. A movable end plate 7 is rotatably mounted on one end of each support connecting rod 5. The movable end plate 7 moves back and forth, causing the bottom end of the control connecting rod 6 to move, which in turn causes the support connecting rod 5 to rotate on the surface of the fixed mounting column 1. This causes the outer support plate 3 to retract or expand, limiting the outer support plate 3 and keeping it horizontal. As the outer support plate 3 retracts or expands, the positioning block 4 moves to one end of the pipe and is then limited. After installation, the positioning block 4 retracts into the pipe.

[0023] Among them, a control shaft 8 is provided on one side of the mobile end plate 7, and a connecting plate 9 is bolted to one end of the control shaft 8 by a connecting bolt 10, with the connecting bolt 10 located at the center of one end of the control shaft 8.

[0024] Secondly, a limiting bolt 11 is threaded through one side of the connecting plate 9, and the limiting bolt 11 is threadedly connected to one side of the moving end plate 7. The control shaft 8 moves left and right, causing the moving end plate 7 to move left and right.

[0025] Please see Figure 1 , Figure 5 A fixed mounting plate 12 is fitted on the surface of the control shaft 8, and a control top plate 13 is fixedly installed on one end of the control shaft 8.

[0026] Two control screws 14 are rotatably mounted on one side of the control top plate 13. The control screws 14 are threadedly connected to the fixed mounting plate 12, and a limit end plate 141 is fixedly mounted on one end of the control screws 14. When the control screws 14 rotate, they move left and right on the fixed mounting plate 12, which in turn moves the control top plate 13 left and right, and thus the control shaft 8.

[0027] Meanwhile, two driven pulleys 15 are rotatably mounted on one side of the fixed mounting plate 12. One end of the control screw 14 is fixedly connected to the driven pulleys 15, and the two driven pulleys 15 are connected by belt drive.

[0028] A rotary knob 16 is fixedly installed on one side of the driven pulley 15. A mounting tube 17 is fixedly installed between the fixed mounting plate 12 and the fixed mounting column 1. A hydraulic support rod 18 is fixedly installed at the bottom of the mounting tube 17. Rotating the knob 16 rotates one of the driven pulleys 15, which in turn rotates the other driven pulley 15 via a belt. This, in turn, rotates the two control screws 14, thereby controlling the movement of the control shaft 8 and the positioning block 4.

[0029] In this embodiment, the positioning block 4 is aligned with one end of the pipe, and the knob 16 is rotated to make the outer support plate 3 contact the inside of the pipe, so that the positioning block 4 is located at one end of the pipe. At this time, the other pipe section is connected. The positioning block 4 limits the connection, so that there is a certain gap between the two pipe sections. After the two pipe sections are installed, the knob 16 is rotated to make the outer support plate 3 retract inward, and the positioning block 4 is pulled back into the pipe. The entire positioning device can then be removed for convenient use next time.

[0030] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for small-diameter prefabricated insulated ductile iron pipes, comprising a fixed mounting column (1), characterized in that: The fixed mounting column (1) is rotatably mounted with four limiting support rods (2). One end of each limiting support rod (2) is rotatably mounted with an outer support plate (3). A positioning block (4) is fixedly mounted on the outer side of the outer support plate (3). The fixed mounting column (1) is rotatably mounted with four support connecting rods (5). One end of each support connecting rod (5) is rotatably connected to the inner side of the outer support plate (3). A control connecting rod (6) is rotatably mounted on one side of each support connecting rod (5). A movable end plate (7) is rotatably mounted on one end of each support connecting rod (5).

2. The positioning device for small-diameter prefabricated insulated ductile iron pipes according to claim 1, characterized in that: A control shaft (8) is provided on one side of the mobile end plate (7). One end of the control shaft (8) is bolted to a connecting plate (9) by a connecting bolt (10). The connecting bolt (10) is located at the center of one end of the control shaft (8).

3. The positioning device for small-diameter prefabricated insulated ductile iron pipes according to claim 2, characterized in that: A limiting bolt (11) is provided on one side of the connecting plate (9), and the limiting bolt (11) is threadedly connected to one side of the moving end plate (7).

4. The positioning device for small-diameter prefabricated insulated ductile iron pipes according to claim 2, characterized in that: A mounting plate (12) is fitted onto the surface of the control shaft (8), and a control top plate (13) is fixedly mounted on one end of the control shaft (8).

5. The positioning device for small-diameter prefabricated insulated ductile iron pipes according to claim 4, characterized in that: Two control screws (14) are rotatably mounted on one side of the control top plate (13). The control screws (14) are threadedly connected to the fixed mounting plate (12), and a limit end plate (141) is fixedly mounted on one end of the control screws (14).

6. The positioning device for small-diameter prefabricated insulated ductile iron pipes according to claim 5, characterized in that: Two driven pulleys (15) are rotatably mounted on one side of the fixed mounting plate (12). One end of the control screw (14) is fixedly connected to the driven pulleys (15), and the two driven pulleys (15) are connected by belt drive.

7. The positioning device for small-diameter prefabricated insulated ductile iron pipes according to claim 6, characterized in that: A rotating knob (16) is fixedly installed on one side of the driven pulley (15), and an installation tube (17) is fixedly installed between the fixed mounting plate (12) and the fixed mounting column (1). A hydraulic support rod (18) is fixedly installed at the bottom of the installation tube (17).

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