Device for detecting air tightness of cable joint during startup

Abstract

The utility model discloses a device for detecting the air tightness of a cable joint during startup, and relates to the technical field of cable processing. The shell comprises a first half shell and a second half shell, the first half shell and the second half shell are hinged to each other, each of the first half shell and the second half shell is composed of a main shell body and two side shell bodies, the two side shell bodies are fixedly installed at the two ends of the main shell body respectively, and the two side shell bodies are made of high-strength deformable materials. According to the utility model, the device can rapidly and accurately detect the air tightness of the cable joint during startup, does not need to depend on artificial experience judgment, effectively prevents production delay and loss caused by insufficient air tightness, and realizes rapid connection and firm sealing through the ingenious design of the hinge structure and the sealing buckle, thereby improving the reliability of the cable joint. Safety and reliability of the detection process are ensured, the sealing effect is good, the detection precision is high, and assistance is provided for air tightness detection of the cable joint.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable processing, in particular to a device for detecting the air tightness of a cable joint when starting up. Background Art

[0002] The purpose of cable vulcanization is to enhance the strength and heat resistance of the cable, improve the anti-aging performance and durability of the cable, so as to achieve better electrical conduction and protect objects. During the cable vulcanization operation, the cable needs to be connected, and the air tightness of the cable joint is one of the important conditions affecting the cable vulcanization.

[0003] In existing actual engineering operations, most of them rely on the captain to wrap the joint with softened material, and continue to wrap tape on the outer layer to ensure its airtightness. Therefore, the above method mainly relies on the captain's experience to operate, and cannot ensure that the airtightness of the joint is completely qualified. If the airtightness is poor, it will cause the joint to enter the lower closed part with water. When there is a water section, the water will be pressed into the wire core by the larger pressure in the vulcanization tank and flow out from the machine head. The obvious phenomenon exposed to the outside is water leakage at the machine head. If the machine head leaks, it is necessary to stop the machine urgently, clean the screw again and then restart the machine, which greatly affects the efficiency. In addition, the cables that have been produced will be scrapped, causing losses. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting the air tightness of cable joints when starting up. In the utility model, the device can quickly and accurately detect the air tightness of cable joints when starting up, without relying on manual experience and judgment, effectively preventing production delays and losses caused by insufficient air tightness. The device achieves rapid connection and firm sealing through the ingenious design of hinged structure and sealing buckle, ensuring the safety and reliability of the detection process. The application of high-strength deformable materials ensures the close fit between the device and the cable, further improving the sealing performance. Built-in pressure sensors and other components ensure the accuracy of the test results, provide assistance for the air tightness detection of cable joints, and solve the existing technical problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] A device for detecting the air tightness of a cable joint when starting up, comprising:

[0007] A first half shell and a second half shell, wherein the first half shell and the second half shell are hinged to each other, each of the first half shell and the second half shell is composed of a main shell and two side shells, the two side shells are respectively fixedly mounted at two ends of the main shell, and the two side shells are made of high-strength deformable material, and are used to keep close contact with adjacent cables to ensure good sealing performance;

[0008] It also includes a detection component, which is used to detect the air tightness of the cable connector inside the first half shell and the second half shell;

[0009] It also includes two sets of sealing buckles, which are used to complete the connection and fixation between the first half shell and the second half shell.

[0010] Optionally, the detection component includes a CNC box fixedly installed on the top of the first half shell, a pressure sensor fixedly installed on the bottom of the CNC box, one end of the pressure sensor fixedly passes through one side of the first half shell and extends into the first half shell, the pressure sensor is electrically connected to the CNC box, and the pressure sensor is used to detect the gas pressure inside the sealed first half shell and the second half shell; a display screen is fixedly installed on the top of the CNC box, and the display screen is electrically connected to the CNC box for displaying the detection value.

[0011] Optionally, the detection component also includes a one-way air intake pipe fixedly passing through one side of the CNC box, one end of the one-way air intake pipe fixedly passing through one side of the first half shell and extending into the first half shell, a one-way air valve fixedly arranged in the one-way air intake pipe for completing the air injection into the first half shell and the second half shell; an air release valve fixedly arranged on the outer wall of the second half shell, the air inlet of the air release valve being connected to the interior of the second half shell, and the air release valve being used for completing the discharge of gas from the first half shell and the second half shell.

[0012] Optionally, the sealing buckle includes a fixing frame and a fixing block, the fixing frame is fixedly installed on the outer wall of the first half shell, the fixing block is fixedly installed on the outer wall of the second half shell, the fixing frame corresponds to the fixing block, both sides of the fixing frame are rotatably connected with connecting plates, one side of the two connecting plates is provided with a sliding groove, the two connecting plates are slidably connected with sliders through the sliding groove, one end of the two sliders is fixedly installed with a tension spring, the other ends of the two tension springs are fixedly connected to the inner wall of one side of the sliding groove, the other ends of the two sliders are fixedly installed with the same snap plate, the snap plate cooperates with the bottom of the fixing block to complete the fixation of the fixing frame and the fixing block.

[0013] Optionally, a screw is passed through the top thread of the fixing block, a threaded hole is opened inside the snap plate, one end of the screw is threadedly connected to the threaded hole for further fixing the snap plate and the fixing block, and a knob is fixedly installed on the top of the screw for facilitating the rotation of the screw.

[0014] Optionally, port sealing belts are provided at the ends of the two side shells that are away from each other, and the two adjacent port sealing belts cooperate with each other to tighten and seal the ports of the side shells; side sealing belts are provided at the positions where the two side shells contact each other, and the two adjacent side sealing belts are tightly attached to each other to ensure good sealing at the connection between the adjacent side shells.

[0015] Optionally, the fixing frame is C-shaped, and a cavity is formed between the top inner wall of the fixing frame and the top of the fixing block. The height of the cavity is greater than the thickness of the snap plate, which is used to ensure that the screw has enough rising space to complete the separation from the inside of the snap plate.

[0016] Optionally, the edge of the outer wall of the knob protrudes from one side of the fixing frame or the fixing block, and the outer wall of the knob is provided with a plurality of protrusions for facilitating the turning and rotating of the knob.

[0017] The embodiments of the present invention have the following beneficial effects:

[0018] In the utility model, the device can quickly and accurately detect the air tightness of the cable joints when the machine is turned on (the cable joints during normal production after the machine is turned on cannot be detected and do not need to be detected), without relying on the captain's experience, and can effectively reduce the work delays and property losses caused by the problem of poor air tightness of the cable joints when the machine is turned on;

[0019] In the utility model, the device adopts a first half shell and a second half shell of a hinged structure, and realizes quick connection and fixation through two sets of sealing buckles, which is simple and quick to operate. At the same time, the sealing buckle can firmly and reliably connect the first half shell and the second half shell, ensuring good sealing performance while also ensuring the safety of the device, which is conducive to completing the airtightness detection at the cable joint;

[0020] In the utility model, the device adopts a side shell and a port sealing belt made of high-strength deformable material, which can ensure a close fit between the device and the cable and improve the sealing performance. At the same time, the pressure sensor and one-way air inlet pipe and other components in the detection assembly can accurately detect the gas pressure inside the cable connector and ensure the accuracy of the detection result.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0023] Figure 1 This is a schematic cross-sectional view of an embodiment of the utility model;

[0024] Figure 2 It is a side cross-sectional structural schematic diagram of an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of a sealing buckle according to an embodiment of the utility model;

[0026] Figure 4 The figure is a schematic diagram of the disassembly structure of the sealing buckle according to one embodiment of the utility model.

[0027] In the figure: 1. first half shell; 2. second half shell; 3. main shell; 4. side shell; 5. CNC box; 6. display screen; 7. pressure sensor; 8. one-way air inlet pipe; 9. one-way air valve; 10. sealing buckle; 11. port sealing belt; 12. side sealing belt; 13. air release valve; 14. fixing bracket; 15. fixing block; 16. screw; 17. knob; 18. connecting plate; 19. slide groove; 20. slider; 21. snap plate; 22. tension spring; 23. threaded hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0031] Example 1

[0032] See also Figure 1-4 As shown, in this embodiment, a device for detecting the air tightness of a cable joint is provided, comprising: a first half shell 1, a second half shell 2, a detection component and two sets of sealing buckles;

[0033] The first half shell 1 and the second half shell 2 are connected to each other by a hinged manner, so that the device can be easily opened and closed to clamp the cable connector. The first half shell 1 and the second half shell 2 have the same structure, both consisting of a main shell 3 and two side shells 4. The two side shells 4 are respectively fixedly mounted on both ends of the main shell 3, and are made of high-strength deformable material, such as rubber or elastic plastic, to ensure a close fit with adjacent cables to achieve a good sealing effect.

[0034] The detection component is the core part of the device, which is used to detect the air tightness of the cable joints inside the first half shell 1 and the second half shell 2. The detection component includes a CNC box 5, which is equipped with a corresponding circuit board. A display screen 6 is installed on the top of the CNC box 5 to display the detection value; a pressure sensor 7 is fixed to the bottom of the CNC box 5, one end of the pressure sensor 7 passes through the side wall of the first half shell 1, extends into the internal space, and is electrically connected to the CNC box 5; when the first half shell 1 and the second half shell 2 are closed, the pressure sensor 7 can detect the internal gas pressure in real time, and feed back the data to the CNC box 5, which is then displayed on the display screen 6.

[0035] In order to inject gas into the first half shell 1 and the second half shell 2, the detection component also includes a one-way air inlet pipe 8, one end of which is fixedly connected to one side of the CNC box 5, and the other end passes through the side wall of the first half shell 1 and extends into the interior. A one-way air valve 9 is arranged inside the one-way air inlet pipe 8 to control the one-way flow of gas to ensure that the gas does not leak during the detection process.

[0036] In addition, a vent valve 13 is fixedly provided on the outer wall of the second half shell 2, and its air inlet is connected to the interior of the second half shell 2; after the inspection is completed, the gas inside the first half shell 1 and the second half shell 2 can be discharged by opening the vent valve 13, which facilitates the removal of the device, has high safety in use, and is convenient for reuse of the device.

[0037] Two groups of sealing buckles 10 are used to fix the first half shell 1 and the second half shell 2; each group of sealing buckles 10 includes a fixing frame 14 and a fixing block 15, the fixing frame 14 is installed on the outer wall of the first half shell 1, and the fixing block 15 is installed on the outer wall of the second half shell 2, and the fixing frame 14 is rotatably connected with connecting plates 18 on both sides, and a slide groove 19 is opened on the connecting plate 18, and a slider 20 is slidably connected in the slide groove 19, one end of the slider 20 is connected to the inner wall of the slide groove 19 through a tension spring 22, and a snap plate 21 is fixed to the other end; when the first half shell 1 and the second half shell 2 are closed, the snap plate 21 cooperates with the bottom of the fixing block 15, and fixation is achieved through the tension of the tension spring 22.

[0038] In order to further improve the fixing effect of the sealing buckle, a screw 16 is passed through the top thread of the fixing block 15, and a threaded hole 23 is opened inside the snap plate 21. When the first half shell 1 and the second half shell 2 are closed and initially fixed, the screw 16 is driven into the threaded hole 23 by turning the knob 17, thereby further fixing the snap plate 21 and the fixing block 15, ensuring that the sealing buckle 10 will not collapse due to the high internal pressure of the device, and the safety of use is high.

[0039] The present application can be used in the field of cable processing technology, and can also be used in other fields applicable to the present application.

[0040] Example 2

[0041] refer to Figure 1 , 3 4. Improved on the basis of Example 1: a device for detecting the air tightness of a cable joint when starting up, which is applied to the field of cable processing technology;

[0042] A port sealing belt 11 is provided at one end of the two side shells 4 away from each other, and the adjacent port sealing belts 11 cooperate with each other. When the first half shell 1 and the second half shell 2 are closed, the port of the side shell 4 can be tightened and sealed by the port sealing belt 11. Similarly, a side sealing belt 12 is provided at the position where the two side shells 4 contact each other. When the first half shell 1 and the second half shell 2 are closed, the adjacent side sealing belts 12 are tightly attached to each other to ensure the sealing of the connection.

[0043] The fixing frame 14 is C-shaped, and a cavity is formed between its top inner wall and the top of the fixing block 15. The height of the cavity is greater than the thickness of the snap plate 21. In this way, when the screw 16 needs to be disengaged from the threaded hole 23 of the snap plate 21, there is enough space for the screw 16 to rise.

[0044] The outer wall edge of the knob 17 protrudes from one side of the fixing frame 14 and the fixing block 15 , and the outer wall is provided with a plurality of protrusions, which facilitates the operator to turn the knob 17 for rotation.

[0045] The use process and working principle of the technical solution of this utility model are as follows:

[0046] After starting up, wait for the captain to perform airtight treatment on the joint of the cable and the start-up line, and then use this device to perform airtightness test on the treated joint; during the test, first open the first half shell 1 and the second half shell 2, then place the cable joint inside the device, then close the device, tighten the port sealing tapes 11 at both ends, and close the sealing buckle 10. At this time, multiple side sealing tapes 12 will also be tightly attached accordingly to seal the connection gap; specifically, when the sealing buckle 10 is closed, it is necessary to use two connecting plates 18 to rotate the snap plate 21, and slightly pull the snap plate 21 to make it stuck at the bottom of the fixed block 15. At this time, under the action of the tension springs 22 on both sides, the snap plate 21 can be tightly stuck at the bottom of the fixed block 15, and the connection between the fixed frame 14 and the fixed block 15 can be completed. Then, the knob 17 is turned to complete the rotation and descent of the screw rod 16, so that the bottom end of the screw rod 16 is threadedly connected with the threaded hole 23. At this time, the fixation can be further ensured. The connection and fixing effect between the fixed block 15 and the snap plate 21 is good, ensuring that the sealing buckle 10 is not easy to be broken. Since the gas pressure inside the device is relatively high during the detection process, the quality and locking effect of the sealing buckle 10 are related to the accuracy of the detection result and the safety of the operator; after completing the locking and sealing of the device, check whether the vent valve 13 is in a closed state to ensure that the device is completely closed, and then use external gas injection equipment to inflate and pressurize the device through one end of the one-way air inlet pipe 8. A one-way air valve 9 is provided in the one-way air inlet pipe 8 to ensure that the gas inside the device will not escape after inflation; while injecting gas, observe the air pressure value displayed on the display screen 6 until it reaches 10MPA (vulcanization tank air pressure) and then stop inflating. At this time, if the air pressure inside the device is stable and does not drop, it means that the air tightness at the joint is intact, otherwise it is necessary to reseal the joint. After the measurement is completed, the vent valve 13 must be opened to deflate before disassembling the device to avoid harm to the operator.

[0047] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for detecting the air tightness of a cable joint when starting up, characterized in that: include: A first half shell (1) and a second half shell (2), wherein the first half shell (1) and the second half shell (2) are hinged to each other, each of the first half shell (1) and the second half shell (2) is composed of a main shell (3) and two side shells (4), wherein the two side shells (4) are respectively fixedly mounted on two ends of the main shell (3), and the two side shells (4) are made of high-strength deformable material and are used to keep close contact with adjacent cables to ensure good sealing performance; It also comprises a detection component, which is used to detect the air tightness of the cable joint inside the first half shell (1) and the second half shell (2); It also comprises two groups of sealing buckles (10), and the two groups of sealing buckles (10) are used to complete the connection and fixation of the first half shell (1) and the second half shell (2).

2. A device for detecting the air tightness of a cable joint when starting up as claimed in claim 1, characterized in that: The detection component comprises a numerical control box (5) fixedly mounted on the top of the first half shell (1); a pressure sensor (7) is fixedly mounted on the bottom of the numerical control box (5); one end of the pressure sensor (7) is fixedly passed through one side of the first half shell (1) and extends into the first half shell (1); the pressure sensor (7) is electrically connected to the numerical control box (5); the pressure sensor (7) is used to detect the gas pressure inside the sealed first half shell (1) and the second half shell (2); a display screen (6) is fixedly mounted on the top of the numerical control box (5); the display screen (6) is electrically connected to the numerical control box (5) and is used to display the detected values.

3. A device for detecting the air tightness of a cable joint when starting up as claimed in claim 2, characterized in that: The detection component also includes a one-way air intake pipe (8) fixedly passing through one side of the numerical control box (5), one end of the one-way air intake pipe (8) fixedly passing through one side of the first half shell (1) and extending into the first half shell (1), a one-way air valve (9) fixedly arranged in the one-way air intake pipe (8) for completing the gas injection into the first half shell (1) and the second half shell (2); an air release valve (13) fixedly arranged on the outer wall of the second half shell (2), the air intake of the air release valve (13) being connected to the interior of the second half shell (2), and the air release valve (13) being used for completing the discharge of gas from the first half shell (1) and the second half shell (2).

4. A device for detecting the air tightness of a cable joint when starting up as claimed in claim 1, characterized in that: The sealing buckle (10) comprises a fixing frame (14) and a fixing block (15), wherein the fixing frame (14) is fixedly mounted on the outer wall of the first half shell (1), and the fixing block (15) is fixedly mounted on the outer wall of the second half shell (2), the fixing frame (14) corresponds to the fixing block (15), both sides of the fixing frame (14) are rotatably connected with connecting plates (18), one side of the two connecting plates (18) is provided with a sliding groove (19), the two connecting plates (18) are slidably connected with a slider (20) through the sliding groove (19), one end of the two sliders (20) is fixedly mounted with a tension spring (22), the other ends of the two tension springs (22) are fixedly connected to the inner wall of one side of the sliding groove (19), and the other ends of the two sliders (20) are fixedly mounted with the same snap plate (21), the snap plate (21) cooperates with the bottom of the fixing block (15) to complete the fixing of the fixing frame (14) and the fixing block (15).

5. A device for detecting the air tightness of a cable joint when starting up as claimed in claim 4, characterized in that: A screw rod (16) is threadedly penetrated through the top thread of the fixing block (15); a threaded hole (23) is provided inside the snap plate (21); one end of the screw rod (16) is threadedly connected to the threaded hole (23) for further fixing the snap plate (21) and the fixing block (15); a knob (17) is fixedly mounted on the top of the screw rod (16) for facilitating the rotation of the screw rod (16).

6. A device for detecting the air tightness of a cable joint when starting a machine as claimed in claim 4, characterized in that: The ends of the two side shells (4) that are away from each other are each provided with a port sealing belt (11), and the two adjacent port sealing belts (11) cooperate with each other to tighten and seal the ports of the side shells (4); the positions where the two side shells (4) contact each other are each provided with a side sealing belt (12), and the two adjacent side sealing belts (12) are tightly attached to each other to ensure good sealing performance at the connection between the adjacent side shells (4).

7. A device for detecting the air tightness of a cable joint when starting a machine as claimed in claim 5, characterized in that: The fixing frame (14) is C-shaped, and a cavity is formed between the top inner wall of the fixing frame (14) and the top of the fixing block (15). The height of the cavity is greater than the thickness of the snap plate (21), so as to ensure that the screw rod (16) has sufficient rising space to be able to be separated from the inside of the snap plate (21).

8. A device for detecting the air tightness of a cable joint when starting a machine as claimed in claim 7, characterized in that: The outer wall edge of the knob (17) protrudes from one side of the fixing frame (14) and the fixing block (15), and the outer wall of the knob (17) is provided with a plurality of protrusions for facilitating the turning and rotating of the knob (17).

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