Sleeve type nodular cast iron pipe loading and transporting structure

Abstract

The utility model belongs to the technical field of nodular cast iron pipe transportation, and particularly relates to a sleeving type nodular cast iron pipe loading and transporting structure which comprises an inner-layer pipe and an outer-layer pipe arranged outside the inner-layer pipe in a sleeving mode, and a plurality of inserting assemblies distributed in a circumferential mode are arranged in a gap between the socket end of the inner-layer pipe and the socket end of the outer-layer pipe. Each inserting assembly comprises a clamping piece, a first supporting block and a first protection pad which are of an integrated structure. Each clamping piece comprises a first connecting plate, a second connecting plate, a first clamping plate, a second clamping plate and a supporting plate. The first connecting plate and the first clamping plate are perpendicularly connected to the two ends of the second connecting plate respectively, and the first clamping plate is used for being clamped to an outer layer pipe connector. The supporting plate is perpendicularly connected with the first connecting plate and is parallel to the second connecting plate at intervals, the second clamping plate is perpendicularly connected to the side, back on to the second connecting plate, of the supporting plate and is parallel to the first connecting plate, and the second clamping plate is used for being clamped at an inner-layer pipe connector. According to the utility model, the integrated clamping piece is adopted, so that the installation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ductile iron pipe transportation, and particularly relates to a sleeve-type ductile iron pipe shipping structure. Background Technique

[0002] Ductile iron pipes have the essence of iron and the performance of steel. After centrifugal casting and annealing, their metallographic structure is ferrite plus a small amount of pearlite, with good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, and easy installation. They are mainly used for water supply, gas transmission, oil transmission, etc. in municipal and industrial and mining enterprises.

[0003] With the large-scale production of ductile iron pipes, the transportation volume is also increasing. Ductile iron pipes with the same length but different diameters may be sent to the same destination. When loading single pipes, they occupy a large space and the loading quantity is small, resulting in too high transportation costs. In order to reduce transportation costs and improve transportation efficiency, in the prior art, there is a method of layer-by-layer sleeve transportation for ductile iron pipes with the same length but different diameters. For example, a fixing method for sleeve transportation of nodular cast iron pipes disclosed in a Chinese patent with the authorization announcement number CN104495060B uses an insertion assembly composed of an outer pipe rubber pad, an inner pipe rubber pad, an outer clamping plate, an inner clamping plate, and a right-end support block to relatively fix the inner pipe and the outer pipe together. During assembly, the outer pipe rubber pad is clamped at the right port of the outer pipe, the inner pipe rubber pad is clamped at the right port of the inner pipe, the outer clamping plate is clamped at the right end faces of the inner pipe and the outer pipe, the inner clamping plate is installed under the inner pipe rubber pad and the outer clamping plate and the inner clamping plate are fastened with right-end bolts, a right-end support block is installed between the outer pipe rubber pad and the inner pipe rubber pad, and the right-end support blocks are connected and fastened with a right-end steel wire ring.

[0004] The above method can achieve the sleeve-type transportation of ductile iron pipes and reduce transportation costs. However, when relatively fixing the outer pipe and the inner pipe, it is necessary to first fix the outer clamping plate and the inner clamping plate in place respectively and then connect the outer clamping plate and the inner clamping plate. It uses many components, the operation is cumbersome, and the installation efficiency is low. Summary of the Utility Model

[0005] The utility model provides a sleeve-type ductile iron pipe shipping structure to solve the technical problem of low installation efficiency when the ductile iron pipes in the prior art are transferred in a sleeve manner.

[0006] To solve the above problems, the sleeve-type ductile iron pipe shipping structure provided by the utility model adopts the following technical solutions:

[0007] A set-type ductile iron pipe shipping structure includes an inner pipe and an outer pipe sleeved outside the inner pipe. The socket ends and spigot ends of the inner pipe and the outer pipe are respectively flush. There are multiple groups of insertion components distributed in a circular pattern between the socket end of the inner pipe and the socket end of the outer pipe. Each group of insertion components includes a clamping member, a first support block, and a first protective pad with an integral structure. The clamping member includes a first connecting plate, a second connecting plate, a first clamping plate, a second clamping plate, and a support plate.

[0008] The first connecting plate and the first clamping plate are respectively vertically connected to both ends of the second connecting plate. The first clamping plate is used to clamp at the interface of the outer pipe. The support plate is vertically connected to the first connecting plate and is arranged in parallel and spaced from the second connecting plate. The second clamping plate is vertically connected to the side of the support plate facing away from the second connecting plate and is parallel to the first connecting plate. The second clamping plate is used to clamp at the interface of the inner pipe.

[0009] The first support block is clamped between the support plate and the outer wall of the inner pipe. The first support block is provided with a first through hole. Each group of insertion components is connected together by a first connecting member passing through each first through hole. The first protective pad is provided between the first clamping plate, the second connecting plate, the first connecting plate and the wall of the inner pipe, and between the first connecting plate, the support plate, the second clamping plate and the wall of the outer pipe.

[0010] The beneficial effects of the set-type ductile iron pipe shipping structure of the present utility model: The present utility model adopts an integral clamping member. During installation, only need to clamp the first clamping plate on the clamping member at the interface of the outer pipe and the second clamping plate at the interface of the inner pipe, then the first support block can be clamped between the support plate and the outer wall of the inner pipe without additionally setting corresponding fasteners. The first protective pad can protect the cement lining of the ductile iron pipe and prevent damage to the ductile iron pipe. The present utility model can achieve one-time installation in place of the clamping member. Compared with the prior art, it uses fewer components, is faster to install, and has higher efficiency.

[0011] Further, the structure formed after connecting the first connecting plate, the second connecting rod, and the first clamping plate is formed by bending a steel plate. The support plate is welded to the first connecting plate, and the second clamping plate is welded to the support plate.

[0012] Beneficial effects: Facilitate the processing and production of the clamping member.

[0013] Further, the thicknesses of the first connecting plate, the second connecting plate, the first clamping plate, the second clamping plate, and the support plate are all the same.

[0014] Beneficial effects: There is no need to select plates with different thicknesses, and the material selection is more convenient.

[0015] Further, the first connecting member is a steel wire. The first connecting member passes through each first through hole and is tied and connected to each clamping member.

[0016] Beneficial effects: The steel wire can be bent and wound, and materials can be obtained locally, facilitating the connection between each plug-in component.

[0017] Furthermore, it further includes a guiding vehicle body detachably arranged at the socket end of the inner layer pipe. The guiding vehicle body includes a vehicle frame and guiding wheels rotatably assembled on both sides of the vehicle frame. The guiding wheels are used for guiding and sliding cooperation with the inner pipe wall of the outer layer pipe. A U-shaped groove for inserting along the edge of the socket end of the inner layer pipe is provided on the vehicle frame, and a pressing member extending into the U-shaped groove to press against the edge of the socket end of the inner layer pipe is also provided on the vehicle frame.

[0018] Beneficial effects: When the inner layer pipe is placed into the outer layer pipe, the guiding vehicle body guides the inner layer pipe to ensure that the inner layer pipe and the outer layer pipe are in a coaxial state, thereby ensuring the overall stability after the outer layer pipe and the inner layer pipe are sleeved.

[0019] Furthermore, a second protective pad for contacting the edge of the socket end of the inner layer pipe is provided on the groove wall of the U-shaped groove.

[0020] Beneficial effects: The second protective pad can protect the cement linings of the outer layer pipe and the inner layer pipe, avoiding damage.

[0021] Furthermore, a plurality of groups of second support blocks evenly distributed in a circumferential manner are provided between the socket end of the outer layer pipe and the socket end of the inner layer pipe. Second through holes are provided on the second support blocks, and second connecting members are inserted through each of the second through holes to connect all the second support blocks together.

[0022] Beneficial effects: The second support blocks can support at the gap between the socket ends of the inner layer pipe and the outer layer pipe, and cooperate with the plug-in components to ensure the overall stable and reliable state after the outer layer pipe and the inner layer pipe are sleeved.

[0023] Furthermore, the second connecting member is a steel wire, and the steel wire passes through each of the second through holes and is tied and connected to each of the second support blocks.

[0024] Beneficial effects: The steel wire can be bent and wound, and materials can be obtained locally, facilitating the connection between each of the second support blocks.

[0025] Furthermore, the number of the second support blocks is the same as that of the first support blocks.

[0026] Beneficial effects: The overall force after the outer layer pipe and the inner layer pipe are sleeved is more uniform, and it is more stable during transportation. Description of the Drawings

[0027] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals denote the same or corresponding parts, wherein:

[0028] Figure 1 is a cross-sectional view of the assembled type ductile iron pipe shipping structure of the present utility model;

[0029] Figure 2 is an installation schematic diagram between the insertion assembly and the outer pipe and the inner pipe;

[0030] Figure 3 is a schematic structural diagram of the guiding vehicle body;

[0031] Figure 4 is a schematic structural diagram at the socket end after the outer pipe and the inner pipe are sleeved;

[0032] Figure 5 is a schematic structural diagram at the spigot end after the outer pipe and the inner pipe are sleeved.

[0033] Explanation of reference numerals:

[0034] 1. Outer pipe; 11. Outer pipe interface; 2. Inner pipe; 21. Inner pipe interface; 3. Clamping member; 31. First connecting plate; 32. Second connecting plate; 33. First clamping plate; 34. Support plate; 35. Second clamping plate; 4. First support block; 5. Second support block; 6. Guiding vehicle body; 61. Guiding wheel; 62. Frame; 63. U-shaped groove; 64. Tightening member; 7. First connecting member; 8. Second connecting member. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present utility model.

[0036] Next, with reference to several representative embodiments of the present utility model, the principles and spirits of the present utility model will be explained in detail.

[0037] Embodiment 1 of an assembled type ductile iron pipe shipping structure provided by the present utility model:

[0038] As Figure 1 and Figure 3As shown in the figure, a set-type ductile iron pipe shipping structure includes an inner layer pipe 2, an outer layer pipe 1 sleeved outside the inner layer pipe 2, an insertion assembly, and a guiding vehicle body 6.

[0039] As Figure 1 shown in the figure, the inner layer pipe 2 and the outer layer pipe 1 are ductile iron pipes with the same length but different inner diameters. The outer layer pipe 1 is sleeved outside the inner layer pipe 2. The socket end of the inner layer pipe 2 is flush with the socket end of the outer layer pipe 1, and the spigot end of the inner layer pipe 2 is flush with the spigot end of the outer layer pipe 1.

[0040] As Figure 4 shown in the figure, the insertion assembly is arranged between the socket ends of the inner layer pipe 2 and the outer layer pipe 1, and four groups are evenly distributed around the circumference of the inner layer pipe 2. As Figure 2 shown in the figure, each group of the insertion assembly includes a clamping member 3, a first support block 4, and a first protective pad. In this embodiment, the clamping member 3 is an integral structure and is made of steel plate, including a first connecting plate 31, a second connecting plate 32, a first clamping plate 33, a second clamping plate 35, and a support plate 34 with the same thickness. The first connecting plate 31 and the first clamping plate 33 are respectively vertically connected to both ends of the second connecting plate 32. The first connecting plate 31 is parallel to the first clamping plate 33, and the first clamping plate 33 is used to clamp at the outer layer pipe interface 11. The structure formed after the connection of the first connecting plate 31, the second connecting rod, and the first clamping plate 33 is formed by bending a steel plate. The support plate 34 is perpendicularly welded to the first connecting plate 31 and is arranged in parallel and spaced from the second connecting plate 32. The length of the support plate 34 is greater than the length of the second connecting plate 32. The second clamping plate 35 is perpendicularly welded to the side of the support plate 34 facing away from the second connecting plate 32 and is parallel to the first connecting plate 31. The second clamping plate 35 is used to clamp at the inner layer pipe interface 21. First protective pads are provided between the first clamping plate 33, the second connecting plate 32, the first connecting plate 31 and the pipe wall of the inner layer pipe 2, and between the first connecting plate 31, the support plate 34, the second clamping plate 35 and the pipe wall of the outer layer pipe 1.

[0041] The first support block 4 is a wooden block and is stuck between the support plate 34 and the outer pipe wall of the inner layer pipe 2. The first support block 4 is provided with a first through hole, and each group of the insertion assemblies is connected together by a first connecting member 7 passing through each first through hole. In this embodiment, the first connecting member 7 is a steel wire, and the first connecting member 7 passes through each first through hole and is tied to each clamping member 3.

[0042] The guiding vehicle body 6 is installed at the socket end of the inner layer pipe 2. The guiding vehicle body 6 includes a vehicle frame 62, guiding wheels 61 rotatably assembled on both sides of the vehicle frame 62, and a pressing member 64 installed on the vehicle frame 62. Among them, the guiding wheels 61 are used for guiding and sliding cooperation with the inner pipe wall of the outer layer pipe 1, which is beneficial to the hoisting and placement of the inner layer pipe 2; a U-shaped groove 63 for inserting the edge of the socket end of the inner layer pipe 2 is provided on the vehicle frame 62. The pressing member 64 is a bolt, and the bolt passes through one side wall of the U-shaped groove 63 and extends into the U-shaped groove 63, and then presses the pressing member 64 against the edge of the socket end of the inner layer pipe 2. In order to avoid damaging the cement lining of the inner layer pipe 2, a second protective pad for contacting the edge of the socket end of the inner layer pipe 2 is provided on the groove wall of the U-shaped groove 63, and the pressing member 64 presses the inner layer pipe 2 against the edge of the socket end by pressing the second protective pad. In this embodiment, both the first protective pad and the second protective pad are rubber pads.

[0043] During the actual installation process, first use a sling to lift the inner layer pipe 2 to the center position of the outer layer pipe 1 by controlling the overhead crane remote control, and make the inner layer pipe 2 in a balanced state; then install the guiding vehicle body 6 at the socket end of the inner layer pipe 2. The U-shaped groove 63 on the guiding vehicle body 6 is inserted into the edge of the socket end of the inner layer pipe 2. The second protective pad is used to prevent damage to the cement lining of the inner layer pipe 2. After tightening the pressing member 64 to fix the guiding vehicle body 6 and the inner layer pipe 2 firmly, the inner layer pipe 2 can be lifted and moved, and the overhead crane remote control is controlled to slowly move to the socket end of the outer layer pipe 1 for pipe dropping; hook the socket end of the inner layer pipe 2 with a hook, control the inner layer pipe 2 to slowly move to the socket end of the outer layer pipe 1, ensure that the socket ends of the two pipes are aligned, and the guiding wheels 61 play a guiding role for the inner layer pipe 2 during the pipe dropping process. After the inner layer pipe 2 is dropped, first install two clamping members 3 at the gap below the socket ends of the inner layer pipe 2 and the outer layer pipe 1. First protective pads are installed at the corresponding positions on the clamping members 3 to prevent damage to the cement lining; then place the first support blocks 4 with drilled through holes on the support plates 34 of the clamping members 3, so that the first through holes on the first support blocks 4 face left and right. Continue to install the clamping members 3 and the first support blocks 4 above the gap between the socket ends of the inner layer pipe 2 and the outer layer pipe 1 in the same way, so that the four clamping members 3 are symmetrically distributed; pass a first connecting member 7 through the first through holes on each first support block 4 and wind it around the clamping member 3 once to tie the first support blocks 4 and the clamping members 3 firmly. Slightly lift the guiding vehicle body 6 at the socket end of the inner layer pipe 2 with a crowbar. When using the crowbar, place a second support block 5 below the crowbar to prevent damage to the cement lining. The second support block 5 is made of wood and a total of four are provided in the circumferential direction of the inner layer pipe 2, as Figure 5 shown, and each second support block 5 is provided with a second through hole; install the two second support blocks 5 below in the same way as before, and then loosen the pressing member 64 to disassemble the guiding vehicle body 6; finally, pass a second connecting member 8 through the second through holes on each second support block 5 to tie the four second support blocks 5 firmly.

[0044] The utility model is simple to operate and easy to implement. It can transport multiple ductile iron pipes with different inner diameters at one time, reducing the transportation cost of ductile iron pipes. In addition, with the integrated clamping member 3, there is no need to additionally use fasteners such as bolts to clamp the socket ends of the inner pipe 2 and the outer pipe 1, and the installation efficiency is high. By selecting clamping members 3, first support blocks 4 and second support blocks 5 of different sizes, the outer pipe 1 and the inner pipe 2 with different pipe diameters can be sleeved and installed.

[0045] Embodiment 2 of the sleeved ductile iron pipe shipping and loading structure provided by the utility model:

[0046] The main difference between it and Embodiment 1 is:

[0047] In Embodiment 1, the structure formed after the connection of the first connecting plate, the second connecting rod and the first clamping plate is formed by bending a steel plate.

[0048] In this embodiment, the first connecting plate, the second connecting rod and the first clamping plate are respectively a separate steel plate, and the three are connected by welding.

[0049] Embodiment 3 of the sleeved ductile iron pipe shipping and loading structure provided by the utility model:

[0050] The main difference between it and Embodiment 1 is:

[0051] In Embodiment 1, the first connecting plate, the second connecting plate, the first clamping plate, the second clamping plate and the support plate have the same thickness.

[0052] In this embodiment, at least two of the first connecting plate, the second connecting plate, the first clamping plate, the second clamping plate and the support plate have different thicknesses. For example, the thickness of the support plate is larger, and at this time, a first support block with a smaller height can be appropriately selected.

[0053] Embodiment 4 of the sleeved ductile iron pipe shipping and loading structure provided by the utility model:

[0054] The main difference between it and Embodiment 1 is:

[0055] In Embodiment 1, the first connecting member and the second connecting member are both made of steel wires. In this embodiment, the first connecting member and the second connecting member are made of a wire rope or a pulling rope and other members that can be bent and tied.

[0056] Based on the above description of this specification, those skilled in the art can also understand the terms used as follows. For example, terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A set-type ductile iron pipe shipping structure, including an inner layer pipe and an outer layer pipe sleeved outside the inner layer pipe. The socket ends and spigot ends of the inner layer pipe and the outer layer pipe are respectively flush with each other. There are multiple groups of insertion components distributed in a circumferential manner between the socket end of the inner layer pipe and the socket end of the outer layer pipe. It is characterized in that, Each set of insertion components includes a clamping member, a first support block, and a first protective pad with an integral structure. The clamping member includes a first connecting plate, a second connecting plate, a first clamping plate, a second clamping plate, and a support plate. The first connecting plate and the first clamping plate are respectively vertically connected to both ends of the second connecting plate. The first clamping plate is used to clamp at the outer layer pipe interface. The support plate is vertically connected to the first connecting plate and is arranged in parallel and spaced apart from the second connecting plate. The second clamping plate is vertically connected to the side of the support plate facing away from the second connecting plate and is parallel to the first connecting plate. The second clamping plate is used to clamp at the inner layer pipe interface. The first support block is clamped between the support plate and the outer wall of the inner layer pipe. The first support block is provided with a first through hole. Each set of insertion components is connected together by a first connecting member passing through each first through hole. The first protective pad is provided between the first clamping plate, the second connecting plate, the first connecting plate and the wall of the inner layer pipe, and between the first connecting plate, the support plate, the second clamping plate and the wall of the outer layer pipe.

2. The shipping structure of the assembled ductile iron pipe according to claim 1, characterized in that The structure formed after the connection of the first connecting plate, the second connecting rod and the first clamping plate is formed by bending a steel plate. The support plate is welded to the first connecting plate, and the second clamping plate is welded to the support plate.

3. The shipping structure of the assembled ductile iron pipe according to claim 1, characterized in that The first connecting plate, the second connecting plate, the first clamping plate, the second clamping plate and the support plate have the same thickness.

4. A set-type ductile iron pipe shipping structure according to any one of claims 1-3, characterized in that, The first connecting member is a steel wire. The first connecting member passes through each first through hole and is tied and connected to each clamping member.

5. A set-type ductile iron pipe shipping structure according to any one of claims 1-3, characterized in that, It further includes a guiding vehicle body that can be detachably arranged at the socket end of the inner layer pipe. The guiding vehicle body includes a vehicle frame and guiding wheels rotatably assembled on both sides of the vehicle frame. The guiding wheels are used for guiding and sliding cooperation with the inner wall of the outer layer pipe. The vehicle frame is provided with a U-shaped groove for inserting at the edge of the socket end of the inner layer pipe, and the vehicle frame is further provided with a pressing member extending into the U-shaped groove to press against the edge of the socket end of the inner layer pipe.

6. The shipping structure of the assembled ductile iron pipe according to claim 5, characterized in that, The groove wall of the U-shaped groove is provided with a second protective pad for contacting the edge of the socket end of the inner layer pipe.

7. The shipping structure of a set of ductile iron pipes according to claim 5, characterized in that, Between the socket end of the outer layer pipe and the socket end of the inner layer pipe, there are multiple groups of second support blocks evenly distributed in a circle. The second support blocks are provided with second through holes, and a second connecting member is passed through each second through hole to connect all the second support blocks together.

8. A set-type ductile iron pipe shipping structure according to claim 7, characterized in that, The second connecting member is a steel wire. The second connecting member passes through each second through hole and is tied and connected to each second support block.

9. The shipping structure of the assembled ductile iron pipe according to claim 7, characterized in that, The number of the second support blocks is the same as that of the first support blocks.

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