Fireproof cable air tightness detection device

Abstract

The utility model relates to the technical field of cable manufacturing equipment, and discloses a fireproof cable air tightness detection device which comprises a bottom plate, a first detection seat is fixedly installed on the top of the bottom plate, and a second detection seat is correspondingly arranged on the top of the first detection seat. Detection cavities are formed in the center positions of the opposite sides of the first detection seat and the second detection seat, air inlet holes communicated with the detection cavities are formed in the rear side of the first detection seat, a plurality of corresponding clamping grooves are formed in the first detection seat and the second detection seat, and a downward pressing mechanism is connected to the top of the second detection seat. The front side of the first detection seat is provided with a limiting assembly. According to the fireproof cable airtightness detection device, the two detection seats which correspond to each other up and down are arranged, and the pressing mechanism is utilized to accurately control the pressing of the second detection seat, so that the two detection seats can be tightly attached, a closed detection environment is formed by the detection cavity to perform airtightness detection on the fireproof cable, errors caused by manual operation are avoided, and the detection stability and repeatability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing equipment, in particular to an air tightness detection device for fireproof cables. Background Art

[0002] A cable is a transmission line that transmits electricity or signals from one place to another. It is usually composed of a conductor, an insulation layer, a shielding layer, a sheath layer, and possible additional structures such as fillers and armor. In the power system, power cables are important carriers of electric energy transmission. Their safety and reliability are directly related to the stable operation of the power system and the safety of people's lives and property. The sealing of the cable is directly related to the insulation performance and service life of the cable.

[0003] For example, Chinese patent CN202323192703.2 discloses a fireproof cable air tightness detection device. An air inlet, an air outlet and a pressure gauge are provided on the middle branch pipe. The air inlet and the air outlet are connected to the two ends of the cable through a pipe to input compressed air into the pipe, and then the pressure gauge is used to detect whether there is any leakage, thereby effectively realizing the detection of the welding quality of the cable copper sheath. The device has a simple structure and is easy to use.

[0004] However, although this testing equipment has the function of detecting the air tightness of cables, in actual operation, it is necessary to manually connect the connector with the interface of the testing mechanism. This step is cumbersome and prone to errors, thus affecting the accuracy of the test results. In addition, the equipment cannot ensure the absolute closure of the testing environment during the testing process, which leads to instability and poor repeatability of the test results, thereby limiting the accuracy and reliability of the test results.

[0005] Based on this, the utility model designs a fireproof cable air tightness detection device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a fireproof cable air tightness detection device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a fireproof cable air tightness detection device, comprising a base plate, a detection seat 1 is fixedly installed on the top of the base plate, a detection seat 2 is correspondingly arranged on the top of the detection seat 1, and a detection cavity is provided at the center position of the opposite side of the detection seat 1 and the detection seat 2, an air inlet connected to the detection cavity is provided on the rear side of the detection seat 1, and a number of corresponding card slots are provided on the detection seat 1 and the detection seat 2, the top of the detection seat 2 is connected to a downward pressing mechanism, and a limiting component is provided on the front side of the detection seat 1, and the limiting component includes a number of wire clamps, and a number of the wire clamps correspond to a number of card slots.

[0008] Preferably, a protective pad of matching shape is embedded in the card slot, and a sealing ring is provided at the edge of the detection cavity. There are two sealing rings and they are respectively embedded in the detection seat 1 and the detection seat 2.

[0009] Preferably, the pressing mechanism includes a mounting plate, a support rod, a cylinder, a push plate and a guide rod. The corners of the bottom of the mounting plate are fixedly connected to the support rods, and the center position of the top of the mounting plate is fixedly installed with a cylinder. The output end of the cylinder passes through the mounting plate and is fixedly connected to the push plate. The bottom of the push plate is fixedly connected to the detection seat 2. Guide rods are provided on the left and right sides of the cylinder. The guide rods are slidably connected to the mounting plate, and the bottom end of the guide rod is fixedly connected to the push plate.

[0010] Preferably, the first detection seat is adapted to the second detection seat, and the second detection seat is connected to the first detection seat via a pressing mechanism.

[0011] Preferably, the limiting assembly further comprises a guide rail and a connecting plate, the guide rail is connected to the base plate, the guide rail is slidably connected to the connecting plate, and a plurality of wire clamps are fixedly connected to the connecting plate at equal intervals.

[0012] Preferably, the bottom of the support rod is connected to a workbench, the top of the workbench is connected to a linear motor module, and the top of the linear motor module is transmission-connected to a base plate.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0014] 1. The utility model sets two corresponding detection seats in the upper and lower parts, and uses a downward pressure mechanism to accurately control the downward pressure strength and speed of the detection seat 2, so that the two detection seats are tightly fitted, so that the detection cavity forms a closed detection environment. At the same time, the use of sealing rings and protective pads improves the sealing performance of the detection cavity, ensures the airtightness during the detection process, thereby improving the accuracy and reliability of the detection results, avoiding errors in manual operation, and improving the stability and repeatability of the detection.

[0015] 2. The utility model sets a limit component so that the cable can be accurately positioned and fixed during the detection process, ensuring the smooth progress of the detection process, and uses the coordinated use of the workbench and the linear motor module to achieve precise movement of the detection seat 2, making the entire detection process more automated and improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a side structural diagram of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the detection seat 1 in the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the detection seat 2 in the present utility model;

[0020] Figure 5 This is a schematic structural diagram of the lower pressure mechanism in the utility model;

[0021] Figure 6 It is a structural diagram of the limit assembly in the utility model.

[0022] Among them: 1. Base plate; 2. Detection seat 1; 3. Detection seat 2; 4. Detection chamber; 5. Air inlet; 6. Slot; 7. Pressing mechanism; 701. Mounting plate; 702. Support rod; 703. Cylinder; 704. Push plate; 705. Guide rod; 8. Limiting assembly; 801. Wire clamp; 802. Guide rail; 803. Connecting plate; 9. Protective pad; 10. Sealing ring; 11. Workbench; 12. Linear motor module. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1 - Figure 2 Example 1 is described. The figure shows a fire-proof cable air tightness detection device, including a base plate 1, a detection seat 2 is fixedly installed on the top of the base plate 1, and a detection seat 2 3 is correspondingly provided on the top of the detection seat 2. A detection cavity 4 is provided at the center position of the detection seat 2 and the detection seat 2 3 on the opposite side. An air inlet 5 connected to the detection cavity 4 is provided on the rear side of the detection seat 2. A plurality of corresponding card slots 6 are provided on the detection seat 1 2 and the detection seat 2 3. A downward pressing mechanism 7 is connected to the top of the detection seat 2 3. A limiting component 8 is provided on the front side of the detection seat 2. The limiting component 8 includes a plurality of wire clamps 801. The plurality of wire clamps 801 correspond to the plurality of card slots 6. The wire clamp 801 is an elastic structure with an opening on the top to adapt to fire-proof cables of different thicknesses.

[0026] See also Figure 3 and Figure 4In the illustrated card slot 6, a protective pad 9 having a matching shape is embedded in the card slot 6. A sealing ring 10 is provided at the edge of the detection cavity 4. Two sealing rings 10 are provided and are respectively embedded in the detection seat 1 2 and the detection seat 2 3. The protective pad 9 and the sealing ring 10 are integrally formed with an elastic rubber material.

[0027] In this embodiment, when the fireproof cable is tested for air tightness, the fireproof cable is clamped by the wire clamp 801 and the fireproof cable is embedded in the card slot 6 so that the connection end of the fireproof cable is located in the detection cavity 4 of the detection seat 1 2. The detection seat 2 3 is pressed down by the pressing mechanism 7 so that the detection seat 2 3 fits tightly with the detection seat 1 2 to form a closed detection environment. At the same time, the sealing ring 10 and the protective pad 9 are used to improve the sealing performance of the detection cavity 4, ensure the air tightness during the detection process, and thus improve the accuracy and reliability of the detection results. Then, compressed air is input into the detection cavity 4 through the air inlet 5, and the changes in the pressure gauge readings are observed. The pressure gauge is not shown in the figure. The pressure gauge is a common existing technology and will not be elaborated on here.

[0028] It should be noted that the detection seat 2 3 is connected to an external air source through the air inlet hole 5, and the air pressure changes in the cavity are monitored in real time through the pressure gauge set in the air source, so that the changes in the pressure gauge readings can be observed in real time, and the air tightness of the cable can be accurately judged. The air source can be any one of a variety of mechanisms such as a compressed air station, a nitrogen preparation system, an inert gas supply station, and a portable gas cylinder.

[0029] Example 2

[0030] See also Figure 1 and Figure 5 Example 2 is described. This embodiment further illustrates Example 1. In the figure, the pressing mechanism 7 includes a mounting plate 701, a support rod 702, a cylinder 703, a push plate 704 and a guide rod 705. The corners of the bottom of the mounting plate 701 are fixedly connected to the support rod 702. The cylinder 703 is fixedly installed at the center position of the top of the mounting plate 701. The output end of the cylinder 703 passes through the mounting plate 701 and is fixedly connected to the push plate 704. The bottom of the push plate 704 is fixedly connected to the detection seat 2 3. Guide rods 705 are provided on both sides of the cylinder 703. The guide rods 705 are slidably connected to the mounting plate 701, and the bottom end of the guide rod 705 is fixedly connected to the push plate 704.

[0031] Furthermore, the detection seat 1 2 is adapted to the detection seat 2 3 , and the detection seat 2 3 is connected to the detection seat 1 2 by the pressing mechanism 7 ;

[0032] In this embodiment, the cylinder 703 is powered on to output power, pushing the push plate 704 to move vertically downward. During the pushing process, the guide rods 705 set on the left and right sides of the cylinder 703 slide synchronously on the mounting plate 701 to ensure the smooth and accurate downward pressing process, so that the push plate 704 drives the detection seat 2 3 to be pressed down evenly, ensuring the sealing between the detection seat 1 2 and the detection seat 2 3.

[0033] Example 3

[0034] See also Figure 2 and Figure 6 Example 3 is described. This embodiment further illustrates Example 2. In the figure, the limiting assembly 8 further includes a guide rail 802 and a connecting plate 803. The guide rail 802 is connected to the base plate 1. The connecting plate 803 is slidably connected to the guide rail 802. A plurality of wire clips 801 are fixedly connected to the connecting plate 803 at equal intervals.

[0035] Furthermore, the bottom of the support rod 702 is connected to the workbench 11, the top of the workbench 11 is connected to the linear motor module 12, and the top of the linear motor module 12 is transmission-connected to the base plate 1;

[0036] In this embodiment, the connecting plate 803 can adjust the position of the wire clamp 801 by sliding the guide rail 802 to adapt to fire-resistant cables of different specifications. The linear motor module 12 is used to drive the detection seat 2 3 to perform precise linear motion, which can achieve precise alignment of the detection seat 1 2 and the detection seat 2 3, improve the accuracy and efficiency of the detection, and separate the loading and unloading of the fire-resistant cables in the detection device from the detection operation, thereby ensuring the stability and reliability of the detection device during detection.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof cable air tightness detection device, comprising a base plate (1), characterized in that: A detection seat 1 (2) is fixedly mounted on the top of the base plate (1), and a detection seat 2 (3) is correspondingly arranged on the top of the detection seat 1 (2). A detection cavity (4) is provided at the center position of the opposite side of the detection seat 1 (2) and the detection seat 2 (3), and an air inlet (5) connected to the detection cavity (4) is provided on the rear side of the detection seat 1 (2). A plurality of corresponding card slots (6) are provided on the detection seat 1 (2) and the detection seat 2 (3), and a downward pressing mechanism (7) is connected to the top of the detection seat 2 (3). A limiting assembly (8) is provided on the front side of the detection seat 1 (2), and the limiting assembly (8) includes a plurality of wire clamps (801), and the plurality of wire clamps (801) correspond to the plurality of card slots (6).

2. A fireproof cable air tightness detection device according to claim 1, characterized in that: A protective pad (9) of a matching shape is embedded in the card slot (6), and a sealing ring (10) is provided at the edge of the detection cavity (4). Two sealing rings (10) are provided and are respectively embedded in the detection seat 1 (2) and the detection seat 2 (3).

3. The fireproof cable air tightness detection device according to claim 1, characterized in that: The pressing mechanism (7) comprises a mounting plate (701), a support rod (702), a cylinder (703), a push plate (704) and a guide rod (705). The corners of the bottom of the mounting plate (701) are fixedly connected to the support rod (702). The top of the mounting plate (701) is A cylinder (703) is fixedly installed at the center position of the part, the output end of the cylinder (703) passes through the mounting plate (701) and is fixedly connected to a push plate (704), the bottom of the push plate (704) is fixedly connected to a detection seat 2 (3), and guide rods (705) are provided on the left and right sides of the cylinder (703), the guide rods (705) are slidably connected to the mounting plate (701), and the bottom end of the guide rod (705) is fixedly connected to the push plate (704).

4. The fireproof cable air tightness detection device according to claim 1, characterized in that: The detection seat 1 (2) is adapted to the detection seat 2 (3), and the detection seat 2 (3) is connected to the detection seat 1 (2) by a downward pressing mechanism (7).

5. The fireproof cable air tightness detection device according to claim 1, characterized in that: The limiting assembly (8) further comprises a guide rail (802) and a connecting plate (803), wherein the guide rail (802) is connected to the base plate (1), the connecting plate (803) is slidably connected to the guide rail (802), and a plurality of wire clamps (801) are fixedly connected to the connecting plate (803) at equal intervals.

6. The fireproof cable air tightness detection device according to claim 3, characterized in that: The bottom of the support rod (702) is connected to a workbench (11), the top of the workbench (11) is connected to a linear motor module (12), and the top of the linear motor module (12) is transmission-connected to a base plate (1).

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