A protective pipe joint connection load-bearing test system

Abstract

This utility model discloses a protective pipe joint connection load-bearing capacity testing system, specifically relating to the field of protective pipe joint connection load-bearing capacity testing. It includes a protective pipe assembly, comprising a protective joint and a first and second protective pipe installed at both ends of the protective joint; and a hoisting device, including a crane, a crossbeam, and slings connected to both sides of the bottom of the crossbeam, with the crossbeam fixedly connected to the protective pipe assembly near both ends via the slings on both sides. This utility model uses a hoisting device to connect the installed protective pipes near both ends, then hangs counterweights on the protective pipes, and lifts the protective pipes and counterweights together using the hoisting device. The counterweights apply pressure to the protective pipes at both ends, thereby testing the load-bearing capacity of the joint connection. This method is convenient, and the support points for the protective pipes and the position of the counterweights can be adjusted as needed, allowing for sequential testing of multiple protective sections, greatly increasing testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of load-bearing test of protective pipe joint connections, and more specifically, to a load-bearing test system for protective pipe joint connections. Background Technology

[0002] Cable protection pipes are metal protective pipes with a certain mechanical strength laid on the outer layer of cables to prevent damage. They are mainly installed at the intersection of communication cables and power lines to prevent short circuits caused by power line breaks, which could lead to energization of communication cables and steel wire ropes. This protects cables, switches, circuit boards, and even the entire device from burning out. They also provide some isolation against magnetic field interference from power lines. When connecting and assembling cable protection pipes, they need to be connected using protection pipe joints.

[0003] Existing cable protection pipes, after being assembled by connecting pipe joints, have a large overall volume, making it inconvenient to test the load-bearing strength of the pipes after assembly. Furthermore, since the pipes are connected in multiple sections, the test position needs to be adjusted multiple times during testing, greatly increasing the complexity of the test. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a protective pipe joint connection load-bearing test system. This system involves using hoisting equipment to connect the installed protective pipes near both ends, then attaching counterweights to the protective pipes. The hoisting equipment lifts the protective pipes and counterweights together, applying pressure to both ends of the protective pipes using the counterweights to test the load-bearing capacity of the joint connection. This method is convenient, and the support points for the protective pipes and the position of the counterweights can be adjusted as needed, allowing for sequential testing of multiple protective sections and significantly increasing testing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective pipe joint connection load-bearing test system, comprising:

[0006] A protective tube assembly, comprising a protective connector and a first protective tube and a second protective tube installed at both ends of the protective connector;

[0007] The hoisting equipment includes a crane, a crossbeam, and slings connected to both sides of the bottom end of the crossbeam, and the crossbeam is fixedly connected to the near ends of the protective pipe assembly via the slings on both sides.

[0008] The counterweight consists of two sets, which are suspended at both ends of the protective tube assembly.

[0009] Furthermore, the protective connector consists of a first connector and a second connector, and the first connector and the second connector are connected by a flange.

[0010] Furthermore, the second connector is a two-part structure, and the two parts are fixedly connected by bolts. One end of the second connector is sleeved on the outer surface of one end of the second protective tube, and the second protective tube is a multi-segment connection structure.

[0011] Furthermore, the first connector is provided with an inner liner tube, and the inner wall of the inner liner tube is provided with stripes. The inner liner tube is sleeved on one end of the first protective tube, and the outer surface of the first connector is provided with a number of adjusting pins.

[0012] Furthermore, the slings are made of nylon, and the top two sides of the crossbar are connected to the crane.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This invention connects the installed protective pipe near both ends using hoisting equipment, then hangs a counterweight on the protective pipe and lifts the pipe and counterweight together using the hoisting equipment. The counterweight applies pressure to both ends of the protective pipe, thus testing the load-bearing capacity of the joint connection. This method is convenient, and the support points for the protective pipe and the position of the counterweight can be adjusted as needed, allowing multiple sections of the protective pipe to be tested sequentially, greatly increasing testing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0017] Figure 3 This is an exploded view of the overall structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the protective tube installation structure of this utility model.

[0019] The attached diagram is labeled as follows: 1. First joint; 2. Inner liner; 3. Second joint; 4. First protective pipe; 5. Second protective pipe; 6. Horizontal frame; 7. Lifting strap. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] according to Figure 1-4 The protective pipe joint connection load-bearing test system shown includes:

[0023] A protective tube assembly, comprising a protective connector and a first protective tube 4 and a second protective tube 5 installed at both ends of the protective connector;

[0024] The hoisting equipment includes a crane, a crossbeam 6, and slings 7 connected to both sides of the bottom end of the crossbeam 6, and the crossbeam 6 is fixedly connected to the near ends of the protective pipe assembly via the slings 7 on both sides.

[0025] The counterweight consists of two sets, which are suspended at both ends of the protective tube assembly.

[0026] Furthermore, the protective connector consists of a first connector 1 and a second connector 3, and the first connector 1 and the second connector 3 are connected by a flange.

[0027] Furthermore, the second connector 3 is a two-part structure, and the two parts are fixedly connected by bolts. One end of the second connector 3 is sleeved on the outer surface of one end of the second protective tube 5. The second protective tube 5 is a multi-segment connection structure.

[0028] Furthermore, the first connector 1 is provided with an inner liner tube 2, and the inner wall of the inner liner tube 2 is provided with stripes. The inner liner tube 2 is sleeved on one end of the first protective tube 4, and the outer surface of the first connector 1 is provided with a plurality of adjusting pins.

[0029] Furthermore, the sling 7 is made of nylon, and the top two sides of the crossbar 6 are connected to the crane.

[0030] Example 2

[0031] A method for testing the load-bearing capacity of a protective pipe joint connection, comprising the following steps:

[0032] Step 1: Prepare the first protective tube 4, put the inner liner tube 2 on one end of the first protective tube 4, then insert the end with the inner liner tube 2 into the first connector 1, and then rotate the adjustment and disassembly on the surface of the first connector 1 in sequence to install and fix one end of the second protective tube 5.

[0033] Step 2: Fit the split-state second connector 3 onto one end of the second protective tube 5, and connect the split-state second connector 3 with bolts, thereby connecting one end of the second protective tube 5 to the second connector 3;

[0034] Step 3: Align the flanges at one end of the first connector 1 with those at the end of the second connector 3, and then connect the corresponding flanges with fixing bolts. Assemble the first connector 1 with the inner liner 2 and check whether each fixing bolt is installed securely.

[0035] Step 4: Prepare the counterweights. Weigh the counterweights using a tension scale to ensure that the weights of the two counterweights meet the standard. The weights of the two counterweights prepared in Step 4 are both 1500kg, and the counterweights are packaged in thickened nylon bags.

[0036] Step 5: Move the two counterweights to both ends of the installation pipe assembly using a crane, and attach the two counterweights to one end of the first protective pipe 4 and the second protective pipe 5 respectively.

[0037] Step Six: Use a crane to lower the horizontal frame 6, connect the bottom sling 7 to the protective pipe assembly, check whether the connection is firm, and then use the crane to lift the horizontal frame 6, driving the protective pipe assembly and the counterweights at both ends to lift together until the counterweights at both ends are off the ground. In Step Six, the length of the horizontal frame 6 is 3m, and the lifting points of the sling 7 are located at a distance of 31.5m from the first joint 1 and the second joint, respectively.

[0038] Step 7: After measuring the fixed time, use a crane to move the direction of the protective pipe assembly, move the sling 7 to the support position on the second protective pipe 5, then move the position of the counterweight at one end of the second protective pipe 5, and then lift it with a crane. Test the connection of other sections and repeat this operation. The time for each load measurement of the protective pipe assembly in Step 7 is 5 minutes.

[0039] Step 8: After the measurement is completed, inspect the surface of the protective tube assembly and record the inspection results. The inspection items for the protective tube assembly in Step 8 include whether the joints are loose or detached, and whether there are any cracks or damage on the surface of the protective tube assembly.

Claims

1. A protective coupling connection load bearing test system, comprising: include: The protective tube assembly includes a protective connector and a first protective tube (4) and a second protective tube (5) installed at both ends of the protective connector. The hoisting equipment includes a crane, a crossbeam (6) and slings (7) connected to both sides of the bottom end of the crossbeam (6), and the crossbeam (6) is fixedly connected to the near ends of the protective pipe assembly by the slings (7) on both sides respectively. The counterweight consists of two sets, which are suspended at both ends of the protective tube assembly.

2. A protective coupling connection load test system according to claim 1, wherein: The protective connector consists of a first connector (1) and a second connector (3), and the first connector (1) and the second connector (3) are connected by a flange.

3. The protective pipe joint connection load-bearing test system according to claim 2, characterized in that: The second connector (3) is a two-part structure, and the two parts are fixedly connected by bolts. One end of the second connector (3) is sleeved on the outer surface of one end of the second protective tube (5). The second protective tube (5) is a multi-segment connection structure.

4. The protective pipe joint connection load-bearing test system according to claim 2, characterized in that: The first connector (1) is provided with an inner liner tube (2), and the inner wall of the inner liner tube (2) is provided with stripes. The inner liner tube (2) is sleeved on one end of the first protective tube (4), and the outer surface of the first connector (1) is provided with several adjusting pins.

5. The protective pipe joint connection load-bearing test system according to claim 1, characterized in that: The sling (7) is made of nylon, and the top two sides of the crossbar (6) are connected to the crane.

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