Quick connect tensile temperature cable

Abstract

The utility model discloses a kind of quick-connection type tensile temperature-measuring cable in cable field, including grain surface cable and grain pile cable, quick-connection male head and quick-connection female head are respectively arranged at the both ends of grain surface cable, grain surface tensile steel wire is arranged with connection between the two, grain pile cable includes cable layer in middle part and tensile layer on both sides, wire is equipped in cable layer, grain pile tensile steel wire is equipped in tensile layer, the upper end of grain pile cable is vertically fixedly connected with the middle part of grain surface cable, and grain pile tensile steel wire is fixedly connected with grain surface tensile steel wire. By setting grain surface tensile steel wire in grain surface cable, setting grain pile tensile steel wire on both sides of grain pile cable, the tensile strength of both can be ensured, grain surface tensile steel wire and grain pile tensile steel wire are connected together, the stable connection of grain surface cable and grain pile cable can be realized, both electrical connection reliability is ensured, and grain pile tensile steel wire on both sides of grain pile cable can be uniformly stressed, cable in middle part is protected, and product performance is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of cables, and in particular to a quick-connect tensile temperature measuring cable. Background Technology

[0002] Currently, in grain storage, temperature-measuring cables are typically buried in the grain pile to monitor grain temperature, and these cables are removed before the grain is removed from the storage facility. During several years of static storage, the grain settles by 100-200mm under its own weight, reducing the gaps between grains and increasing density. This exerts a downward pull and significant compressive force on the temperature-measuring cables, causing them to break during the settling process and resulting in considerable resistance when pulling them out. Traditional temperature-measuring cables for flat warehouses are usually made by twisting two core conductors together with a tensile steel wire and then injection molding them. This results in low overall tensile strength and a tendency to break.

[0003] With the development of technology, temperature measuring cables have been improved in recent years. They now use double steel wires for both signal transmission and power supply, as well as tensile strength. However, during use, pulling or pulling the temperature measuring cable can affect the sensor, causing deformation, damage, or failure. Furthermore, problems remain, such as large temperature measurement accuracy errors, poor anti-interference capabilities, significant signal attenuation, and inability to guarantee performance. Other solutions involve adding steel wire ropes to the temperature measuring cable to increase tensile strength. For example, patent document CN106525285A discloses a scheme where a set of steel wire ropes is symmetrically arranged on both sides of the cable. This ensures signal transmission stability and increases tensile strength. However, the two sets of steel wire ropes in this temperature measuring cable are independent structures. If the steel wire ropes on both sides are subjected to uneven stress, it can still damage the cable in the middle. Moreover, this solution does not specify how the temperature measuring cable is externally electrically connected or tensile-resistant.

[0004] Furthermore, due to the large area of ​​traditional flat-roofed grain storage facilities, multiple temperature-sensing cables are typically buried within the grain pile to accurately reflect the overall temperature of the grain. Currently, all temperature-sensing cables are installed and tested separately without unified management, resulting in a large number of cables on the grain surface, which can easily lead to confusion and affect other monitoring during the grain storage process. In addition, as the temperature-sensing cables settle with the grain, the lack of rigid connections and uneven settling can easily cause the electrical connections between the temperature-sensing cables and external cables to loosen and detach. Utility Model Content

[0005] To overcome the above-mentioned shortcomings of existing temperature measuring cables, the technical problem to be solved by this utility model is to provide a quick-connect tensile temperature measuring cable with high tensile strength, convenient layout and reliable connection.

[0006] The technical solution adopted by this utility model to solve its technical problem is: The quick-connect tensile temperature measuring cable includes a grain surface cable and a grain pile cable. The grain surface cable has a quick-connect male and a quick-connect female connector at both ends, which are electrically connected to the internal conductors. A grain surface tensile steel wire is installed between the quick-connect male and quick-connect female connectors. The grain pile cable includes a middle cable layer and an outer tensile layer. A conductor is installed inside the cable layer. A grain pile tensile steel wire is installed on each of the opposite sides inside the tensile layer. The upper end of the grain pile cable is vertically fixedly connected to the middle of the grain surface cable, and the conductor at the upper end of the cable layer is electrically connected to the conductor inside the grain surface cable. The two grain pile tensile steel wires at the upper end of the tensile layer are fixedly connected to the grain surface tensile steel wire.

[0007] Furthermore, the grain surface cable includes a grain surface injection molding layer and conductors. The conductors include a wavy signal line and a grounding line that are intersected with each other. The grain surface tensile steel wire passes through the intersection of the signal line and the grounding line and is taut between the quick-connect male and quick-connect female connectors. The grain surface injection molding layer is integrally injection molded with the quick-connect male and quick-connect female connectors, fixing the conductors and the grain surface tensile steel wire inside.

[0008] Furthermore, the cable layer and tensile layer of the grain pile cable are both injection-molded layers. The conductors in the cable layer include wavy signal lines and grounding lines that are intersected with each other. Multiple sensors are spaced apart along the length of the signal lines and grounding lines. The tensile steel wire of the grain pile is taut and installed in the tensile layer.

[0009] Furthermore, the upper ends of the cable layer and tensile layer of the grain pile cable are fixedly connected to the grain surface injection molding layer of the grain surface cable through a T-shaped injection molding head.

[0010] Furthermore, the lower ends of the two tensile steel wires of the grain pile cable are fixedly connected together, and part of the lower end of the tensile layer is exposed to form a hanging part.

[0011] The beneficial effects of this utility model are as follows: By setting a section of grain surface cable at the upper end of the grain pile cable and setting quick-connect male and female connectors at both ends of the grain surface cable, multiple temperature measuring cables can be quickly connected, thereby simplifying the arrangement structure of the temperature measuring cables, improving the arrangement efficiency, and facilitating unified management and temperature monitoring of all temperature measuring cables. In addition, by setting grain surface tensile steel wire inside the grain surface cable and grain pile tensile steel wire on both sides of the grain pile cable, the tensile strength of both can be ensured. Connecting the grain surface tensile steel wire and the grain pile tensile steel wire together can achieve a stable connection between the grain surface cable and the grain pile cable, ensuring the reliability of the electrical connection between the two and making the tensile steel wires on both sides of the grain pile cable evenly stressed, thus protecting the cable in the middle and ensuring stable and reliable product performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] The markings in the diagram are as follows: 1-Grain surface cable, 2-Grain pile cable, 3-Signal line, 4-Grounding wire, 5-Sensor, 6-T-shaped injection head, 11-Quick connector male, 12-Quick connector female, 13-Grain surface tensile steel wire, 14-Grain surface injection layer, 21-Cable layer, 22-Tensile layer, 23-Grain pile tensile steel wire, 24-Hanging part. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] It should be noted that if this utility model contains directional indicators such as up, down, left, right, front, and back, these terms are used to describe the relative positional relationships between components and are not specific references to the absolute positions of the components or the relationships between them. They are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. If this utility model contains terms related to quantity such as "many," "multiple," or "several," these terms specifically refer to two or more.

[0016] like Figure 1 As shown, the present invention provides a quick-connect tensile-resistant temperature measuring cable, comprising a grain surface cable 1 and a grain pile cable 2. The grain surface cable 1 has a quick-connect male connector 11 and a quick-connect female connector 12 at both ends, electrically connected to their internal conductors. A grain surface tensile steel wire 13 connects the quick-connect male connector 11 and the quick-connect female connector 12. Specifically, the grain surface tensile steel wire 13 can be fixedly connected to the quick-connect male connector 11 and the quick-connect female connector 12 by winding injection molding. The grain pile cable 2 includes a middle cable layer 21 and an outer tensile layer 22. The cable layer 21 contains conductors, and the tensile layer 22 contains a grain pile tensile steel wire 23 on each opposite side. The upper end of the grain pile cable 2 is vertically fixedly connected to the middle of the grain surface cable 1, and the conductors at the upper end of the cable layer 21 are electrically connected to the conductors inside the grain surface cable 1. Both grain pile tensile steel wires 23 at the upper end of the tensile layer 22 are fixedly connected to the grain surface tensile steel wires 13.

[0017] Traditional temperature measuring cables generally do not have a separate grain surface cable; instead, the grain pile cable 2 is directly connected to the external detection equipment to monitor temperature. Some designs use a separate grain surface cable to connect all the grain pile cables 2 in parallel, but the connection between the grain surface cable and the grain pile cable 2 is only through a wire, which is cumbersome, has low connection strength, and may detach during installation and monitoring. This invention directly installs a grain surface cable 1 at the upper end of the grain pile cable 2. In addition to the electrical connection through a wire, the two are also fixedly connected by a grain surface tensile steel wire 13 and a grain pile tensile steel wire 23, ensuring the reliability of the connection. Furthermore, quick-connect male connectors 11 and quick-connect female connectors 12 are provided at both ends of the grain surface cable 1, allowing adjacent temperature measuring cables to be connected together quickly before connecting to the external detection equipment. This simplifies the cable layout and improves efficiency. The length of the grain surface cable 1 can be half the distance between adjacent temperature measuring cables, eliminating the need for additional cables to connect it. The quick-connect male connector 11 and quick-connect female connector 12 of adjacent temperature measuring cables can be connected together by plugging or threading. In addition to achieving a stable electrical connection, the connection should also have a certain strength and should not be easily disconnected. When the grain pile cable 2 settles with the grain, the grain surface cable 1 can provide a certain tension force to prevent excessive settlement and displacement of the grain pile cable 2 in the face of different settlement amounts at different locations.

[0018] To prevent stress on the internal conductors during cable tension, the grain surface cable 1 includes a grain surface injection molding layer 14 and conductors. The conductors include a wavy signal line 3 and a grounding line 4 that are intersected. A grain surface tensile steel wire 13 passes through the intersection of the signal line 3 and the grounding line 4 and is taut between the quick-connect male connector 11 and the quick-connect female connector 12. The grain surface injection molding layer 14 is integrally injection molded with the quick-connect male connector 11 and the quick-connect female connector 12, fixing the conductors and the grain surface tensile steel wire 13 inside. That is, the conductors are loosely twisted pairs. When the grain surface cable 1 is subjected to tension at both ends, only the grain surface tensile steel wire 13 and the grain surface injection molding layer 14 are stretched. Even if the grain surface injection molding layer 14 deforms slightly, the tension will not be transmitted to the signal line 3 and the grounding line 4.

[0019] Similarly, to prevent the conductors in the grain pile cable 2 from being stretched, both the cable layer 21 and the tensile layer 22 of the grain pile cable 2 are injection-molded layers. The conductors within the cable layer 21 include wavy signal lines 3 and grounding lines 4 arranged in a crisscross pattern. Multiple sensors 5 are spaced apart along the length of the signal lines 3 and grounding lines 4. The grain pile tensile steel wire 23 is taut and installed within the tensile layer 22. During manufacturing, the signal lines 3, grounding lines 4, and sensors 5 are first injection-molded into the cable layer 21. Then, the grain pile tensile steel wire 23 is injection-molded together with the cable layer 21 to form the tensile layer 22. The tensile layer 22 encloses the cable layer 21, forming a double-layer structure. Temperature measurement and tensile strength do not interfere with each other but work closely together. When the external grain pile tensile steel wire 23 is subjected to tension, it will not affect the cable layer 21, ensuring the safety of the internal sensors 5 and enhancing the tensile strength and service life of the temperature measuring cable.

[0020] When connecting the grain surface cable 1 and the grain pile cable 2, first connect the signal line 3 and the grounding line 4 together, ensuring that the connection is loose. Then, use a T-shaped injection mold to fix the wire connection part to the cable layer 21 and the grain surface injection layer 14. Next, wrap the upper end of the grain pile tensile steel wire 23 around the grain surface tensile steel wire 13. Finally, use a T-shaped injection mold to inject the upper end of the tensile layer 22 of the grain pile cable 2 and the grain surface injection layer 14 of the grain surface cable 1 together to form a T-shaped injection head 6, ensuring the reliability of the connection between the grain surface cable 1 and the grain pile cable 2.

[0021] When laying the temperature measuring cable, the lower end of the cable is typically first hung on the lower tube device. Then, the lower tube device is inserted into the grain pile from the grain surface, and the temperature measuring cable is pushed into the grain pile. Once the lower tube device reaches the predetermined depth, it is pulled out upwards, and the temperature measuring cable is buried in the grain pile. To facilitate connection with the lower tube device, the lower ends of the two grain pile tensile steel wires 23 of the grain pile cable 2 are fixedly connected together, with a portion of the lower end of the tensile layer 22 exposed to form a hanging part 24. When the lower tube device pushes the hanging part 24 downwards, the tensile steel wires 23 on both sides are subjected to uniform force, avoiding damage to the cable layer 21 caused by force on one side.

Claims

1. A quick-connect tensile-resistant temperature measuring cable, characterized in that: The system includes a grain surface cable (1) and a grain pile cable (2). The grain surface cable (1) has a quick-connect male connector (11) and a quick-connect female connector (12) at both ends, which are electrically connected to the internal conductors. A grain surface tensile steel wire (13) is connected between the quick-connect male connector (11) and the quick-connect female connector (12). The grain pile cable (2) includes a cable layer (21) in the middle and a tensile layer (22) on the outside. A conductor is provided in the cable layer (21). A grain pile tensile steel wire (23) is provided on each of the opposite sides in the tensile layer (22). The upper end of the grain pile cable (2) is vertically fixedly connected to the middle of the grain surface cable (1). The conductor at the upper end of the cable layer (21) is electrically connected to the conductor in the grain surface cable (1). The two grain pile tensile steel wires (23) at the upper end of the tensile layer (22) are fixedly connected to the grain surface tensile steel wires (13).

2. The quick-connect tensile-resistant temperature measuring cable as described in claim 1, characterized in that: The grain surface cable (1) includes a grain surface injection molding layer (14) and a conductor. The conductor includes a wavy signal line (3) and a grounding line (4) that are intersected with each other. The grain surface tensile steel wire (13) passes through the intersection of the signal line (3) and the grounding line (4) and is stretched between the quick-connect male connector (11) and the quick-connect female connector (12). The grain surface injection molding layer (14) is integrally injection molded with the quick-connect male connector (11) and the quick-connect female connector (12) to fix the conductor and the grain surface tensile steel wire (13) inside.

3. The quick-connect tensile-resistant temperature measuring cable as described in claim 2, characterized in that: The cable layer (21) and tensile layer (22) of the grain pile cable (2) are both injection molded layers. The conductors in the cable layer (21) include signal lines (3) and grounding lines (4) that are arranged in a wavy pattern and are intersected with each other. Multiple sensors (5) are arranged at intervals along the length of the signal lines (3) and grounding lines (4). The tensile steel wire (23) of the grain pile is taut and arranged in the tensile layer (22).

4. The quick-connect tensile-resistant temperature measuring cable as described in claim 3, characterized in that: The upper ends of the cable layer (21) and tensile layer (22) of the grain pile cable (2) are fixedly connected to the grain surface injection layer (14) of the grain surface cable (1) through a T-shaped injection head (6).

5. The quick-connect tensile-resistant temperature measuring cable as described in any one of claims 1-4, characterized in that: The lower ends of the two tensile steel wires (23) of the grain pile cable (2) are fixedly connected together, and the lower end of the tensile layer (22) is partially exposed to form a hanging part (24).

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