Outer anchor connector for straight pipe and bent pipe of T-shaped socket and spigot joint of nodular cast iron pipe
The ductile iron pipe T-shaped socket-type interface connector addresses the inefficiencies of traditional methods by using clamps and tie bars to securely connect pipes, enhancing resistance and reducing installation time and costs.
Patent Information
- Application Number
- CN202420747786.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing connection methods for ductile iron pipes in thermal pipeline networks, such as cement and concrete use, result in material waste, high costs, long construction periods, poor compressive resistance, and difficulty in special environments like crossing rivers.
A ductile iron pipe T-shaped socket-type interface connector using large-head and small-head clamps, along with tie bars, to securely connect ductile iron pipes, providing protection and enhancing tensile and bending resistance.
The connector simplifies installation, reduces costs, and shortens construction time while ensuring robust connections that can withstand challenging environments, allowing multiple pipes to be connected efficiently.
Smart Images
Figure CN222163928U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connectors, in particular to a ductile iron pipe T-shaped socket-type interface straight pipe and elbow external anchor connector. Background Art
[0002] At present, most of the ductile iron pipes used in the construction of tap water pipes and sewage pipes in my country's thermal pipeline network are connected by T-type socket-type structures. Because electric welding joints are not allowed in the connection of ductile iron pipes, cement and concrete are conventionally used for laying, or cement piers are used to complete the connection of ductile iron pipes.
[0003] However, the connection method in the prior art has the following disadvantages: 1. Such a process causes a lot of material waste and increases the cost. Since concrete requires a curing period, the construction period is very long. 2. The pipe mouth has poor compressive resistance. For example, natural or man-made reasons may cause soil collapse, which may easily cause the pipeline position to shift or sink, resulting in connection failure or pipe mouth breakage. 3. Construction is difficult in special environments, such as laying across a river. Utility Model Content
[0004] The utility model aims to provide a ductile iron pipe T-shaped socket-type interface external anchor connector in order to solve the above problems.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0006] In the first aspect, in order to solve the above-mentioned technical problems, the utility model provides a ductile iron pipe T-type socket-type straight pipe external anchor connector, comprising a large-head clamp, a small-head clamp and a straight tie bar used to connect the small-head clamp and the large-head clamp, the large-head clamp is a circular ring-shaped closed structure composed of six identical large-head clamp connectors connected end to end, and adjacent large-head clamp connectors are connected to the top of a straight tie bar, the small-head clamp is a circular ring-shaped closed structure composed of six identical small-head clamp connectors connected end to end, and adjacent small-head clamp connectors are respectively connected to the corresponding bottom ends of the straight tie bars. Through this arrangement, the ductile iron pipe straight pipes can be connected, and protection can be provided for the pipe mouth connection.
[0007] Preferably, a slope matching the outer wall of the protrusion at the socket end of the ductile iron pipe is provided on one side of the inner wall of the large-head clamp connector relative to the small-head clamp connector. This arrangement can prevent damage to the socket end of the ductile iron pipe straight pipe or the curved pipe when the ductile iron pipe straight pipe and the ductile iron pipe curved pipe are connected, and at the same time can provide protection for the socket end of the ductile iron pipe straight pipe or the curved pipe.
[0008] Preferably, a limiting groove matching the outer contour surface of the socket end of the ductile iron pipe is provided on the inner wall of the straight tie bar near the large head clamp. Through this arrangement, when the ductile iron pipe straight pipe and the ductile iron pipe straight pipe mouth are connected or the ductile iron pipe straight pipe and the ductile iron pipe bent pipe mouth are connected, it is convenient for the straight tie bar to be stressed while preventing damage to the socket end of the ductile iron pipe straight pipe or the bent pipe, and the socket end of the ductile iron pipe straight pipe or the bent pipe can be protected. A plurality of groups of arc grooves are provided on the inner wall of the straight tie bar near the small head clamp, and each group of the arc grooves is provided with reinforcing ribs matching the outer wall of the ductile iron pipe straight pipe socket end. Through this arrangement, the ductile iron pipe straight pipe socket end can be protected.
[0009] Preferably, a plurality of threaded holes are provided on the small head clamp connector. This arrangement facilitates fixing and positioning of the small head clamp connector and facilitates installation of the small head clamp.
[0010] Preferably, a groove is provided at the top end of the straight tie rod where it is connected to the large-head clamp connector. This arrangement facilitates the connection and installation of the upper tie rod of the bent pipe, the first side tie rod of the bent pipe, the second side tie rod of the bent pipe and the lower tie rod of the bent pipe with the corresponding straight tie rods.
[0011] Preferably, connecting blocks are fixedly provided at both ends of the large-head clamp connecting piece and the small-head clamp connecting piece, and a plurality of through holes for installing bolts are provided on the connecting blocks and at both ends of the straight tension bars, so as to facilitate the connection between each of the large-head clamp connecting pieces and the connection between each of the small-head clamp connecting pieces, as well as the connection between the straight tension bars and the large-head clamp and the small-head clamp, respectively.
[0012] On the second aspect, based on the same inventive concept, the present application also provides a bent pipe external anchor connector using a straight pipe external anchor connector, including a second big head clamp connected to the big head clamp through the upper tension bar of the bent pipe, the first side tension bar of the bent pipe, the second side tension bar of the bent pipe and the lower tension bar of the bent pipe respectively. Through this arrangement, the ductile iron straight pipe, the ductile iron bent pipe and the ductile iron straight pipe can be connected to form a whole, and protection can be provided for the pipe mouth connection.
[0013] Preferably, the upper tie bar of the curved tube is provided with a bend 1, and after the bottom end of the upper tie bar of the curved tube is connected to the two said big head clamp connectors at the top of the big head clamp, the top end of the upper tie bar of the curved tube can be connected to the two said big head clamp connectors at the top of the second said big head clamp;
[0014] The number of the bent pipe side tie bars is two and they are relatively arranged on both sides of the bent pipe upper tie bars. The bent pipe side tie bars are provided with a second bend. After the bottom end of the bent pipe side tie bars is connected to the big head clamp connector at the top of the big head clamp and the adjacent big head clamp connector below, the top end of the bent pipe side tie bars can be connected to the big head clamp connector at the top of the second big head clamp and the adjacent big head clamp connector below.
[0015] The number of the second bending tube side tie bars is two and they are relatively arranged on both sides of the upper tie bars of the bending tube. The second bending tube side tie bars are provided with a third bend. After the bottom end of the second bending tube side tie bars is connected to the big head clamp connector at the bottom of the big head clamp and the adjacent big head clamp connector above it, the top end of the second bending tube side tie bars can be connected to the big head clamp connector at the bottom of the second big head clamp and the adjacent big head clamp connector above it;
[0016] The bent pipe lower tie bar is provided with a bend four, and after the bottom end of the bent pipe lower tie bar is connected to the two said big head clamp connection pieces at the bottom of the big head clamp, the top end of the bent pipe lower tie bar can be connected to the two said big head clamp connection pieces at the bottom of the second said big head clamp;
[0017] Through this arrangement, ductile iron straight pipes, ductile iron bent pipes and ductile iron straight pipes can be connected, and protection can be provided for the pipe opening connection.
[0018] Preferably, the upper tie bar of the bent pipe, the first tie bar of the bent pipe side, the second tie bar of the bent pipe side and the bottom end of the lower tie bar of the bent pipe are fixedly provided with a limit block, and the limit block matches the groove, and the limit block is provided with a plurality of through holes for installing bolts, through this arrangement, it is convenient to connect and install the upper tie bar of the bent pipe, the first tie bar of the bent pipe side, the second tie bar of the bent pipe side and the lower tie bar of the bent pipe with the corresponding straight tie bar respectively;
[0019] The upper tie bar of the bent pipe, the first tie bar on the side of the bent pipe, the second tie bar on the side of the bent pipe and the inner wall of the lower tie bar of the bent pipe near the second big head clamp are all provided with a limiting groove two matching the outer contour surface of the socket end of the ductile iron pipe. Through this arrangement, when the ductile iron pipe bent pipe and the ductile iron pipe straight pipe mouth are connected, damage to the socket end of the ductile iron pipe straight pipe can be prevented and protection can be provided for the socket end of the ductile iron pipe straight pipe.
[0020] Preferably, the large head clamp, the small head clamp, the straight tie rod, the upper tie rod of the bent pipe, the side tie rod one of the bent pipe, the side tie rod two of the bent pipe and the lower tie rod of the bent pipe are all made of steel material, which can withstand greater tensile force and bending resistance, and can not only connect the pipe mouth of the ductile iron pipe into a whole, but also provide protection for the pipe mouth connection.
[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0022] 1. The device has a simple structure. The straight pipe outer anchor connector can be used to connect the ductile iron pipe straight pipe socket end and the ductile iron pipe straight pipe spigot end into a whole. The elbow outer anchor connector can be used to connect the ductile iron pipe straight pipe socket end, the ductile iron pipe elbow and the ductile iron pipe straight pipe spigot end into a whole. It can not only provide protection for the pipe connection, but also save costs, is very convenient to install, and can greatly shorten the construction period.
[0023] 2. This device can withstand greater tension and bending resistance. When encountering difficult construction areas, multiple ductile iron pipes can be connected to directly cross the difficult construction area to improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0025] Figure 1 It is a stereoscopic diagram of a ductile iron pipe T-shaped socket-type interface straight pipe external anchor connector described in the utility model;
[0026] Figure 2 It is a front view of a ductile iron pipe T-shaped socket-type straight pipe external anchor connector described in the utility model;
[0027] Figure 3 This is a diagram of the use state of a ductile iron pipe T-shaped socket-type straight pipe external anchor connector described in the utility model;
[0028] Figure 4 It is a structural schematic diagram of a large-head clamp connector of a ductile iron pipe T-shaped socket-type interface straight pipe external anchor connector described in the utility model;
[0029] Figure 5 It is a schematic diagram of the straight tie bar structure of a ductile iron pipe T-shaped socket-type interface straight pipe external anchor connector described in the utility model;
[0030] Figure 6 It is a structural schematic diagram of a small head clamp connector of a ductile iron pipe T-shaped socket-type interface straight pipe external anchor connector described in the utility model;
[0031] Figure 7It is a stereoscopic diagram of a ductile iron pipe T-shaped socket-type interface elbow external anchor connector described in the utility model;
[0032] Figure 8 It is a front view of a ductile iron pipe T-shaped socket-type elbow external anchor connector described in the utility model;
[0033] Fig. 9 It is a schematic diagram of the elbow structure of a ductile iron pipe T-shaped socket-type elbow external anchor connector described in the utility model;
[0034] Fig.10 The utility model is a diagram showing the use status of a ductile iron pipe T-shaped socket-type interface elbow external anchor connector.
[0035] The following are the descriptions of the reference numerals:
[0036] 1. Big head clamp; 101. Big head clamp connector; 1011. Inclined surface;
[0037] 2. Small head clamp; 201. Small head clamp connector; 2011. Threaded hole;
[0038] 3. Straight tie bar; 301. Arc groove; 302. Reinforcement rib; 303. Limiting groove 1; 304. Groove;
[0039] 4. Connecting blocks;
[0040] 5. Tension reinforcement on the bent pipe; 501. Bend one;
[0041] 6. Side reinforcement of bent pipe 1; 601. Bending 2;
[0042] 7. Side reinforcement of bent pipe 2; 701. Bending 3;
[0043] 8. Bend pipe lower tie bar; 801. Bend four;
[0044] 9. Limit block;
[0045] 10. Limiting groove 2;
[0046] 11. Through hole. DETAILED DESCRIPTION
[0047] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0049] The utility model is further described below in conjunction with the accompanying drawings:
[0050] Example 1
[0051] like Figure 1-Figure 6 As shown, the present embodiment provides a ductile iron pipe T-type socket-type straight pipe external anchor connector, comprising a large-head clamp 1, a small-head clamp 2 and a straight tie bar 3 for connecting the small-head clamp 2 and the large-head clamp 1. The large-head clamp 1 is a circular ring-shaped closed structure composed of six identical large-head clamp connectors 101 connected end to end, and adjacent large-head clamp connectors 101 are connected to the top of a straight tie bar 3. The small-head clamp 2 is a circular ring-shaped closed structure composed of six identical small-head clamp connectors 201 connected end to end, and adjacent small-head clamp connectors 201 are respectively connected to the bottom ends of the corresponding straight tie bars 3. Through this arrangement, the ductile iron pipe straight pipes can be connected, and protection can be provided for the pipe mouth connection.
[0052] On the side of the inner wall of the large-head clamp connector 101 opposite to the small-head clamp connector 201, there is a slope 1011 matching the outer wall of the protrusion at the socket end of the ductile iron pipe. Through this arrangement, when the straight pipes of the ductile iron pipes are connected to the straight pipes of the ductile iron pipes or when the straight pipes of the ductile iron pipes are connected to the curved pipes of the ductile iron pipes, damage to the socket ends of the straight pipes or curved pipes of the ductile iron pipes can be prevented, and protection can be provided for the socket ends of the straight pipes or curved pipes of the ductile iron pipes.
[0053] A limiting groove 303 matching the outer contour surface of the socket end of the ductile iron pipe is provided on the inner wall of the straight tie bar 3 near the large head clamp 1. Through this arrangement, when the ductile iron straight pipe and the ductile iron straight pipe mouth are connected or when the ductile iron straight pipe and the ductile iron bent pipe mouth are connected, it is convenient for the straight tie bar to be stressed while preventing damage to the socket end of the ductile iron straight pipe or the bent pipe, and it can provide protection for the socket end of the ductile iron straight pipe or the bent pipe. A plurality of groups of arc grooves 301 are provided on the inner wall of the straight tie bar 3 near the small head clamp 2, and each group of arc grooves 301 is provided with a reinforcing rib 302 matching the outer wall of the ductile iron straight pipe socket end. Through this arrangement, the ductile iron straight pipe socket end can be protected.
[0054] A plurality of threaded holes 2011 are provided on the small head clamp connector 201. This arrangement facilitates the fixing and positioning of the small head clamp connector 201 and facilitates the installation of the small head clamp 2.
[0055] A groove 304 is provided at the top end of the straight tie rod 3 at the connection with the large-head clamp connector 101. This arrangement facilitates the connection and installation of the upper tie rod 5 of the bent pipe, the side tie rod 1 6 of the bent pipe, the side tie rod 2 7 of the bent pipe and the lower tie rod 8 of the bent pipe with the corresponding straight tie rod 3 respectively.
[0056] Connecting blocks 4 are fixedly provided at both ends of the large-head clamp connector 101 and the small-head clamp connector 201. A plurality of through holes 11 for installing bolts are provided on the connecting block 4 and at both ends of the straight tension bar 3, so as to facilitate the connection between each large-head clamp connector 101 and each small-head clamp connector 201, and the connection between the straight tension bar 3 and the large-head clamp 1 and the small-head clamp 2 respectively.
[0057] The device is used to be installed on the pipe mouth interface of the ductile iron pipe T-type socket-type straight pipe. The straight pipe mouth includes the ductile iron pipe straight pipe socket end and the ductile iron pipe straight pipe spigot end. The device can connect the ductile iron pipe straight pipe socket end and the ductile iron pipe straight pipe spigot end into a whole. The big head clamp 1 is installed on the ductile iron pipe straight pipe socket end, the small head clamp 2 is installed on the ductile iron pipe straight pipe spigot end, and the straight tie rod 3 is used to connect the small head clamp 2 and the big head clamp 1;
[0058] During installation, a bolt can be screwed into the threaded hole 2011 on the small-head clamp connector 201 to install the small-head clamp 2 on the straight pipe socket end of the ductile iron pipe for fixing and positioning. At the same time, the bottom ends of the straight tie bars 3 are respectively installed between the small-head clamp connectors 201 of the small-head clamp 2, and the reinforcing ribs 302 are sleeved on the straight pipe socket end of the ductile iron pipe. Then, the big-head clamp 1 is installed, and the top ends of the straight tie bars 3 are respectively installed between the big-head clamp connectors 101 of the big-head clamp 1. After the overall position of the device is adjusted, the straight tie bars 3 are respectively welded to the big-head clamp 1, the reinforcing ribs 302 and the small-head clamp 2 to form a whole, which can enhance the overall strength of the device. The device has a simple structure, can save costs, and is very convenient to install, which can greatly shorten the construction period.
[0059] Moreover, the device as a whole is mounted on the pipe mouth interface of the ductile iron pipe T-type socket-type straight pipe, which can protect the ductile iron pipe straight pipe socket end and the ductile iron pipe straight pipe spigot end, not only can it avoid the pipe mouth damage caused by accidents such as landslides, but also the large head clamp 1, the small head clamp 2 and the straight tie bar 3 are all made of steel materials, which can withstand greater tension and bending resistance. When encountering difficult construction areas, multiple pipelines can be connected to directly cross the difficult construction area, thereby improving construction efficiency;
[0060] The large-head clamp 1, the small-head clamp 2 and the straight tie rod 3 of the device can bear a tensile force of 1000kn to 1500kn. The standard product size of the ductile iron pipe is 6 meters. Through the above method, the device can connect up to 15 ductile iron straight pipes in series at the same time. The ductile iron straight pipes will not fall off during dragging. Moreover, the bending resistance of the device is strong enough. The connection between the ductile iron straight pipes will not fall off during the elastic laying of the pipeline. Through this setting, the laying can be completed at one time for operations such as crossing the river in medium and short distances, and the laying efficiency is high.
[0061] Example 2
[0062] like Figure 7-10 As shown, this embodiment provides a bent pipe external anchor connector using a straight pipe external anchor connector, including a second big head clamp 1 connected to the big head clamp 1 through the upper bend reinforcement 5, the side bend reinforcement 6, the side bend reinforcement 7 and the lower bend reinforcement 8 respectively. Through this arrangement, the ductile iron straight pipe, the ductile iron bent pipe and the ductile iron straight pipe can be connected, and the pipe mouth connection can be protected.
[0063] The upper tie bar 5 of the bent pipe is provided with a bend 501. After the bottom end of the upper tie bar 5 of the bent pipe is connected to the two large-headed clamp connectors 101 at the top of the large-headed clamp 1, the top end of the upper tie bar 5 of the bent pipe can be connected to the two large-headed clamp connectors 101 at the top of the second large-headed clamp 1;
[0064] There are two bending tube side tie bars 6 and they are relatively arranged on both sides of the bending tube upper tie bars 5. A second bend 601 is arranged on the bending tube side tie bars 6. After the bottom end of the bending tube side tie bars 6 is connected to the big head clamp connector 101 at the top of the big head clamp 1 and the adjacent big head clamp connector 101 below, the top end of the bending tube side tie bars 6 can be connected to the big head clamp connector 101 at the top of the second big head clamp 1 and the adjacent big head clamp connector 101 below;
[0065] There are two bending tube side reinforcing bars 7 and they are relatively arranged on both sides of the bending tube upper reinforcing bars 5. A bending three 701 is arranged on the bending tube side reinforcing bars 7. After the bottom end of the bending tube side reinforcing bars 7 is connected to the big head clamp connector 101 at the bottom of the big head clamp 1 and the adjacent big head clamp connector 101 above it, the top end of the bending tube side reinforcing bars 7 can be connected to the big head clamp connector 101 at the bottom of the second big head clamp 1 and the adjacent big head clamp connector 101 above it;
[0066] A bending four 801 is provided on the lower tie bar 8 of the bent pipe. After the bottom end of the lower tie bar 8 of the bent pipe is connected to the two big head clamp connectors 101 at the bottom of the big head clamp 1, the top end of the lower tie bar 8 of the bent pipe can be connected to the two big head clamp connectors 101 at the bottom of the second big head clamp 1;
[0067] Through this arrangement, ductile iron straight pipes, ductile iron bent pipes and ductile iron straight pipes can be connected, and protection can be provided for the pipe opening connection.
[0068] The upper tie bar 5 of the bent pipe, the side tie bar 1 6 of the bent pipe, the side tie bar 2 7 of the bent pipe and the lower tie bar 8 of the bent pipe are all fixedly provided with a limit block 9 at the bottom, and the limit block 9 matches the groove 304, and a plurality of through holes 11 for installing bolts are opened on the limit block 9, and this arrangement facilitates the connection and installation of the upper tie bar 5 of the bent pipe, the side tie bar 1 6 of the bent pipe, the side tie bar 2 7 of the bent pipe and the lower tie bar 8 of the bent pipe with the corresponding straight tie bar 3 respectively;
[0069] The upper tension reinforcement 5 of the elbow, the side tension reinforcement 1 of the elbow, the side tension reinforcement 2 of the elbow 7 and the lower tension reinforcement 8 of the elbow are all provided with a limiting groove 2 10 matching the outer contour surface of the elbow at the socket end of the ductile iron pipe near the second big head clamp 1. Through this arrangement, when the ductile iron pipe elbow and the ductile iron pipe straight pipe mouth are connected, damage to the socket end of the ductile iron pipe straight pipe can be prevented and protection can be provided for the socket end of the ductile iron pipe straight pipe.
[0070] The big head clamp 1, the small head clamp 2, the straight tie bar 3, the upper tie bar 5 of the bent pipe, the side tie bar 1 6 of the bent pipe, the side tie bar 2 7 of the bent pipe and the lower tie bar 8 of the bent pipe are all made of steel material, which can withstand greater tension and bending resistance. It can not only connect the ductile iron pipe ends into a whole, but also provide protection for the pipe end connection.
[0071] The device is used to be fitted to the pipe mouth interface of the T-type socket-type joint elbow of the ductile iron pipe. The elbow pipe mouth includes the ductile iron pipe straight pipe socket end, the ductile iron pipe elbow and the ductile iron pipe straight pipe spigot end. The device can connect the ductile iron pipe straight pipe socket end, the ductile iron pipe elbow and the ductile iron pipe straight pipe spigot end into a whole. The small head clamp 2 is installed on the spigot end of the ductile iron pipe straight pipe, the big head clamp 1 is installed on the ductile iron pipe elbow socket end, the second big head clamp 1 is installed on the second ductile iron pipe straight pipe socket end, the straight tie bar 3 is used to connect the small head clamp 2 and the big head clamp 1, the upper tie bar 5 of the elbow, the side tie bar 1 6 of the elbow, the side tie bar 2 7 of the elbow and the lower tie bar 8 of the elbow are used to connect the big head clamp 1 and the second big head clamp 1;
[0072] During installation, a bolt can be screwed into the threaded hole 2011 on the small-head clamp connector 201 to install the small-head clamp 2 on the straight pipe socket end of the ductile iron pipe for fixing and positioning. At the same time, the bottom ends of each straight tie bar 3 are respectively installed between the small-head clamp connector 201 of the small-head clamp 2, and the reinforcing rib 302 is sleeved on the straight pipe socket end of the ductile iron pipe. Then, the big-head clamp 1 is installed on the socket end of the ductile iron pipe elbow. At the same time, the top ends of each straight tie bar 3 are respectively installed between the big-head clamp connector 101 of the big-head clamp 1. Next, the bottom ends of the upper tie bar 5 of the elbow, the side tie bar 1 6 of the elbow, the side tie bar 2 7 of the elbow, and the lower tie bar 8 of the elbow are respectively connected and installed with the corresponding straight tie bars 3. Finally, the second big-head clamp 1 is installed on the second socket end of the straight pipe of the ductile iron pipe. At the same time, the top of the elbow upper tie bar 5, the elbow side tie bar 1 6, the elbow side tie bar 2 7 and the elbow lower tie bar 8 are connected to the big head hoop connector 101 of the second big head hoop 1. After the overall position of the device is adjusted, the straight tie bar 3 is welded to the big head hoop 1, the reinforcing rib 302 and the small head hoop 2 to form a whole, and the elbow upper tie bar 5, the elbow side tie bar 1 6, the elbow side tie bar 2 7 and the elbow lower tie bar 8 are respectively welded to the big head hoop 1 and the second big head hoop 1 to form a whole, which can enhance the overall strength of the device, and can connect the ductile iron pipe straight pipe socket end, the ductile iron pipe elbow and the ductile iron pipe straight pipe spigot end into a whole. The device has a simple structure, can save costs, and is very convenient to install, which can greatly shorten the construction period;
[0073] Moreover, the device as a whole is mounted on the pipe mouth interface of the T-type socket-type joint elbow of the ductile iron pipe, and can protect the socket end of the ductile iron pipe straight pipe, the ductile iron pipe elbow and the ductile iron pipe straight pipe spigot end. It can not only avoid the damage of the pipe mouth caused by accidents such as landslides, but also the big head clamp 1, the small head clamp 2, the straight tie bar 3, the upper tie bar 5 of the elbow, the side tie bar 1 6 of the elbow, the side tie bar 2 7 of the elbow and the lower tie bar 8 of the elbow are all made of steel materials, which can withstand greater tension and bending resistance. When encountering difficult construction areas, multiple pipelines can be connected to directly cross the difficult construction area, thereby improving construction efficiency.
[0074] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A ductile iron pipe T-type socket-type straight pipe external anchor connector, comprising a large head clamp (1), a small head clamp (2) and a straight tie bar (3) for connecting the small head clamp (2) and the large head clamp (1), characterized in that: The large-head clamp (1) is a circular ring-shaped closed structure formed by six identical large-head clamp connectors (101) connected end to end, and adjacent large-head clamp connectors (101) are connected to the top of a straight tie bar (3); the small-head clamp (2) is a circular ring-shaped closed structure formed by six identical small-head clamp connectors (201) connected end to end, and adjacent small-head clamp connectors (201) are respectively connected to the bottom of the corresponding straight tie bar (3).
2. The straight pipe external anchor connector according to claim 1, characterized in that: The inner wall of the large-head clamp connector (101) is provided with an inclined surface (1011) on one side opposite to the small-head clamp connector (201) and matching the outer wall of the protrusion at the socket end of the ductile iron pipe.
3. The straight pipe external anchor connector according to claim 1, characterized in that: A limiting groove (303) matching the outer contour surface of the socket end of the ductile iron pipe is provided on the inner wall of the straight tie bar (3) near the large head clamp (1), and a plurality of groups of arc grooves (301) are provided on the inner wall of the straight tie bar (3) near the small head clamp (2), and a reinforcing rib (302) matching the outer wall of the straight pipe socket end of the ductile iron pipe is provided in each group of the arc grooves (301).
4. The straight pipe external anchor connector according to claim 1, characterized in that: The small head clamp connection piece (201) is provided with a plurality of threaded holes (2011).
5. The straight pipe external anchor connector according to claim 1, characterized in that: A groove (304) is provided at the top end of the straight tie rod (3) at the connection with the large-head clamp connector (101).
6. The straight pipe external anchor connector according to claim 1, characterized in that: Both ends of the large-head clamp connector (101) and the small-head clamp connector (201) are fixedly provided with connection blocks (4), and a plurality of through holes (11) for installing bolts are provided on the connection blocks (4) and on both ends of the straight tie bars (3).
7. A ductile iron pipe T-shaped socket-type elbow external anchor connector using the straight pipe external anchor connector as claimed in any one of claims 1 to 6, characterized in that: It comprises a second large-end clamp (1) connected to the large-end clamp (1) through upper clamps (5) on the bent pipe, first clamps (6) on the side of the bent pipe, second clamps (7) on the side of the bent pipe and lower clamps (8) on the bent pipe.
8. The elbow external anchor connector according to claim 7, characterized in that: The upper tie bar (5) of the curved tube is provided with a bend (501), and after the bottom end of the upper tie bar (5) of the curved tube is connected to the two large-headed clamp connectors (101) at the top of the large-headed clamp (1), the top end of the upper tie bar (5) of the curved tube can be connected to the two large-headed clamp connectors (101) at the top of the second large-headed clamp (1); The number of the bent tube side tie bars (6) is two and they are arranged oppositely on both sides of the bent tube upper tie bars (5). The bent tube side tie bars (6) are provided with a second bend (601). After the bottom end of the bent tube side tie bars (6) is connected to the large-head clamp connector (101) at the top of the large-head clamp (1) and the large-head clamp connector (101) adjacent thereto, the top end of the bent tube side tie bars (6) can be connected to the large-head clamp connector (101) at the top of the second large-head clamp (1) and the large-head clamp connector (101) adjacent thereto; The number of the second bending tube side tie bars (7) is two and they are arranged oppositely on both sides of the upper bending tube tie bars (5). The second bending tube side tie bars (7) are provided with a bend three (701). After the bottom end of the second bending tube side tie bars (7) is connected to the large head clamp connection piece (101) at the bottom of the large head clamp (1) and the large head clamp connection piece (101) adjacent thereto, the top end of the second bending tube side tie bars (7) can be connected to the large head clamp connection piece (101) at the bottom of the second large head clamp (1) and the large head clamp connection piece (101) adjacent thereto; A bend four (801) is provided on the lower tie bar (8) of the bent pipe. After the bottom end of the lower tie bar (8) of the bent pipe is connected to the two large-head clamp connectors (101) at the bottom of the large-head clamp (1), the top end of the lower tie bar (8) of the bent pipe can be connected to the two large-head clamp connectors (101) at the bottom of the second large-head clamp (1).
9. The elbow external anchor connector according to claim 8, characterized in that: The upper tie bar (5) of the bent pipe, the first tie bar (6) of the side tie bar (7) of the bent pipe, and the bottom ends of the lower tie bar (8) of the bent pipe are all fixedly provided with limit blocks (9), and the limit blocks (9) match the grooves (304), and the limit blocks (9) are provided with a plurality of through holes (11) for installing bolts; The inner walls of the upper tie bar (5) of the bent pipe, the first tie bar (6) of the side of the bent pipe, the second tie bar (7) of the side of the bent pipe and the lower tie bar (8) of the bent pipe are all provided with a second limiting groove (10) matching the outer contour surface of the socket end of the ductile iron pipe near the second large-head clamp (1).
10. The elbow external anchor connector according to claim 8, characterized in that: The large-end clamp (1), the small-end clamp (2), the straight tie bars (3), the upper tie bars (5) of the bent pipe, the first tie bars (6) of the bent pipe side, the second tie bars (7) of the bent pipe side and the lower tie bars (8) of the bent pipe are all made of steel material.