Portable detection device for temperature sensing cable

Abstract

The utility model discloses a portable detection device for a temperature sensing cable, which relates to the technical field of detection devices, and specifically comprises a cylinder, one end of the cylinder is rotatably connected with an end cover, the end cover is fastened with the other side of the cylinder through a hasp, the other end of the cylinder is provided with an air inlet, and the air inlet is provided with an air outlet. A first placing groove and a second placing groove are respectively formed in the close ends of the end cover and the cylinder body; the sections of the first placement groove and the second placement groove are semicircular, a plurality of through grooves are formed in the inner walls of the first placement groove and the second placement groove in a penetrating mode, a mounting cavity is formed in the inner wall of the second placement groove, a temperature sensor is fixedly connected into the mounting cavity, and a heating device is fixedly connected into the barrel. One end of the bottom of the barrel is obliquely connected with a handle with an open bottom, and a power supply device and a controller are installed in the handle. According to the utility model, temperature loss can be avoided, rapid detection is realized, the detection accuracy is effectively improved, the structure is simple, and carrying by a user is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a convenient detection device for temperature-sensitive cables. Background Art

[0002] Temperature sensing cable, also known as linear temperature sensing fire detector, has the ability to continuously monitor the temperature of the protected object along the entire line. Temperature sensing cable is stable and reliable, suitable for fire detection in harsh environments, and has a large detection range. The temperature sensing cable is composed of temperature sensing elements, insulating materials and wires, etc., and can perform continuous long-distance temperature detection along the entire line of the protected object.

[0003] The temperature sensing cable is long. After pulling out the cable of a length that matches the laying area, the excess temperature sensing cable will be cut off, and then the two ends of the temperature sensing cable will be connected to the terminal box and the alarm host respectively. In order to measure whether the temperature sensing cable can work normally, the temperature sensing cable will be heated by a heating device. If the heating temperature reaches the preset value and the alarm host alarms normally, it can be proved that the temperature sensing cable is working normally.

[0004] For example, the patent application number "202020562403.6" proposes a portable high-precision temperature-sensitive cable detection device. When it is working, the clamping upper plate and the clamping lower plate clamp the temperature-sensitive cable through the wire holding roller. At this time, the heating wire is heated by the heating mechanism, and the air is supplied by the air supply mechanism to blow the heated air to the temperature-sensitive cable, and the surface temperature of the temperature-sensitive cable is sensed by the temperature-sensing probe. The temperature collected by the temperature-sensing probe is displayed by the temperature display 31. When the temperature-sensing cable sounds an alarm through the alarm, observe whether the surface temperature of the temperature-sensing cable is consistent with the standard temperature. This scheme has the following disadvantages: 1. However, the clamping upper plate and the clamping lower plate clamp the temperature-sensing cable through the wire holding roller, which further increases the distance between the clamping upper plate and the clamping lower plate, allowing outside air to enter the vicinity of the temperature probe, resulting in inaccurate temperature value detected by the temperature probe; 2. The air supply mechanism and the heating mechanism are both arranged on the clamping upper plate, resulting in a large volume of the clamping upper plate. To this end, we propose a Utility Model Content

[0005] In view of the deficiency that the existing detection devices easily allow outside air to enter the vicinity of the temperature sensing probe, resulting in inaccurate temperature values ​​detected by the temperature sensing probe, the utility model provides a convenient detection device for temperature sensing cables, which has the advantages of improving detection accuracy and having a simple structure, easy operation and portability, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A convenient detection device for a temperature sensing cable comprises a cylinder, one end of which is rotatably connected to an end cap, the end cap and the other side of the cylinder are fastened by a buckle, the other end of the cylinder is provided with an air inlet, and the end of the end cap and the cylinder adjacent to each other are respectively provided with a first placement groove and a second placement groove;

[0008] The cross-sections of the first placement groove and the second placement groove are both semicircular, and a plurality of through grooves are penetrated on the inner walls of the first placement groove and the second placement groove, and an installation cavity is provided on the inner wall of the second placement groove, a temperature sensor is fixedly connected in the installation cavity, and a heating device is fixedly connected in the cylinder;

[0009] A handle with an open bottom is obliquely connected to one end of the bottom of the cylinder. A power supply device and a controller are installed in the handle. A switch is provided on the outer wall of the handle. The switch, temperature sensor, and heating device are connected to the controller, and the controller is connected to the power supply device.

[0010] Optionally, the heating device includes two first frames fixedly connected to the inner wall of the cylinder, a plurality of circumferentially distributed strip brackets are fixedly connected between the two first frames, spirally distributed heating wires are connected to the strip brackets, a fan is fixedly connected to the inner wall of the cylinder near the air inlet, and the fan and heating wires are connected to a controller.

[0011] Optionally, a second frame is fixedly connected to the inner wall of the cylinder, and the fan is fixedly connected to the second frame.

[0012] Optionally, the power supply device includes a battery connected to the handle, the handle is connected with positive and negative electrodes matching the battery, display screens are provided on the inner and outer walls of the handle, and the display screen and the positive and negative electrodes are all connected to the controller;

[0013] The bottom of the handle is sealed by the base, and the top of the base is provided with a block that abuts against the battery, and the base is connected to the bottom of the handle by a fixing mechanism.

[0014] Optionally, both ends of the first placement groove and the second placement groove are fixedly connected with an annular sealing strip for wrapping the cable.

[0015] Optionally, the annular sealing strip is a rubber sealing strip.

[0016] Compared with the prior art, the utility model can stably clamp and tighten the cable through the end cover, the first placement groove and the second placement groove. At the same time, the setting of the annular sealing strip can seal the end, avoiding temperature loss, realizing rapid detection of the cable's temperature sensing performance, and effectively improving the accuracy of detection. The device has a simple structure and is easy for users to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the utility model in cooperation with the cable.

[0019] Figure 3 The internal structure of the utility model is shown in FIG. Figure 1 .

[0020] Figure 4 The internal structure of the utility model is shown in FIG. Figure 2 .

[0021] In the figure: 1. end cover; 2. through groove; 3. annular sealing strip; 4. stop block; 5. cylinder; 6. air inlet; 7. display screen; 8. switch; 9. handle; 10. base; 11. first placement slot; 12. card block; 13. installation cavity; 14. temperature sensor; 15. second placement slot; 16. heating wire; 17. strip bracket; 18. first frame; 19. fan; 20. controller; 21. positive and negative electrodes; 22. battery; 23. card slot; 24. second frame. DETAILED DESCRIPTION

[0022] 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 in 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.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a portable detection device for temperature-sensitive cables, including a cylinder 5, one end of the cylinder 5 is rotatably connected with an end cap 1, the end cap 1 and the other side of the cylinder 5 are fastened by buckles, the other end of the cylinder 5 is provided with an air inlet 6, the end cap 1 and the cylinder 5 are respectively provided with a first placement groove 11 and a second placement groove 15 at one end, the first placement groove 11 and the second placement groove 15 are fixedly connected at both ends with an annular sealing strip 3 for wrapping the cable, the annular sealing strip 3 is a rubber sealing strip, when performing actual detection, such as Figure 2 As shown, connect the cable ( Figure 2 The cable is fixedly clamped by placing the end cover 1 and the outer wall of the cylinder 5 (indicated by the middle arrow A) between the first placement groove 11 and the second placement groove 15, and fastening the end cover 1 to the outer wall of the cylinder 5 by means of a buckle. At this time, the annular sealing strip 3 arranged in the first placement groove 11 and the second placement groove 15 abuts against the cable, so that the ends of the first placement groove 11 and the second placement groove 15 can be sealed, thereby avoiding temperature loss and improving the accuracy of detection.

[0024] like Figure 2As shown, in order to improve the stability of cable placement and ensure the accuracy of detection, the cross-sections of the first placement groove 11 and the second placement groove 15 are both semicircular, and the inner walls of the first placement groove 11 and the second placement groove 15 are penetrated with a plurality of through grooves 2, and the inner wall of the second placement groove 15 is provided with an installation cavity 13, and a temperature sensor 14 is fixedly connected in the installation cavity 13. In actual installation, as shown in FIG. Figure 1 As shown, by placing the temperature sensing end of the temperature sensor 14 in the installation cavity 13, the temperature at the cable can be accurately detected, further improving the accuracy of the detection data.

[0025] like Figure 3 , 4 As shown, a heating device is fixedly connected inside the cylinder 5, and the heating device includes two first frames 18 fixedly connected to the inner wall of the cylinder 5, a plurality of circumferentially distributed strip brackets 17 are fixedly connected between the two first frames 18, and a spirally distributed heating wire 16 is connected to the strip bracket 17. A fan 19 is fixedly connected to the inner wall of the cylinder 5 near the air inlet 6, and the fan 19 is fixedly connected to the inner wall of the cylinder 5 through the second frame 24. The fan 19 and the heating wire 16 are connected to the controller 20. The heating wire 16 generates heat when it works, and the rotating fan 19 blows air to the heating wire 16, so that the hot air can be blown to the surface of the cable through the through groove 2 on the second placement groove 15. The cable surface can be continuously heated by blowing for a long time and the detected value can be quickly reached, so that the rapid detection of the temperature sensing performance of the cable can be realized, and the hot air blown to the cable can be discharged through the through groove 2 located on the first placement groove 11, so that the flow of hot air inside the device is realized.

[0026] like Figure 3 , 4 As shown, a handle 9 with an open bottom is obliquely connected to one end of the bottom of the cylinder 5. In actual use, the handle 9 is wrapped with a non-slip rubber sleeve to increase the friction between the hand and it, which is convenient for the user to hold. A power supply device and a controller 20 are installed in the handle 9. A switch 8 is provided on the outer wall of the handle 9. The switch 8, the temperature sensor 14, and the heating device are connected to the controller 20. The controller 20 is connected to the power supply device. The power supply device includes a battery 22 connected to the handle 9. The handle 9 is connected to positive and negative electrodes 21 matching the battery 22. Display screens 7 are provided on the inner and outer walls of the handle 9. The display screen 7 and the positive and negative electrodes 21 are all connected to the controller 20.

[0027] The bottom of the handle 9 is sealed by the base 10, and the top of the base 10 is provided with a block 4 that abuts against the battery 22. The base 10 is connected to the bottom of the handle 9 by a fixing mechanism, such as Figure 3 , 4As shown, the fixing mechanism includes a card block 12 symmetrically connected to the top of the base 10, and a card slot 23 cooperating with the card block 12 is provided at a corresponding position at the bottom of the handle 9. When the block 4 abuts against the battery 22, the base is pushed hard to push the card block 12 into the card slot 23 for clamping, so that the base 10 can be quickly installed. In actual use, the base 10 and the handle 9 can also be connected by magnetic attraction, that is, magnetic blocks are fixedly connected to the bottom of the handle 9 and the base 10. The base 10 and the bottom of the handle 9 can be fastened by the attraction of the magnetic blocks, which not only facilitates installation and disassembly but also serves as a limit for the battery.

[0028] To sum up, when using the convenient detection device for temperature-sensitive cables, the cable to be detected is placed between the first placement groove 11 and the second placement groove 15 and tightened, so that the cable can be fixed and clamped, and the fan 19 blows air to the heating wire 16 to blow hot air to the surface of the cable, and the annular sealing strip 3 is provided to play the role of end sealing, thereby avoiding temperature loss. Through continuous heating, the detection value can be quickly reached, thereby realizing the rapid detection of the cable's temperature sensing performance, improving the accuracy of detection, and the device has a simple structure and is easy for users to carry.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable detection device for a temperature sensing cable, comprising a cylinder (5), characterized in that: One end of the cylinder (5) is rotatably connected to an end cover (1), the end cover (1) and the other side of the cylinder (5) are fastened by a buckle, the other end of the cylinder (5) is provided with an air inlet (6), and the end of the end cover (1) and the cylinder (5) adjacent to each other are respectively provided with a first placement groove (11) and a second placement groove (15); The cross-sections of the first placement groove (11) and the second placement groove (15) are both semicircular, and a plurality of through grooves (2) are provided on the inner walls of the first placement groove (11) and the second placement groove (15), and a mounting cavity (13) is provided on the inner wall of the second placement groove (15), a temperature sensor (14) is fixedly connected in the mounting cavity (13), and a heating device is fixedly connected in the cylinder (5); A handle (9) with an open bottom is obliquely connected to one end of the bottom of the cylinder (5); a power supply device and a controller (20) are installed in the handle (9); a switch (8) is provided on the outer wall of the handle (9); the switch (8), a temperature sensor (14), and a heating device are connected to the controller (20); and the controller (20) is connected to the power supply device.

2. A portable detection device for temperature sensing cables according to claim 1, characterized in that: The heating device comprises two first frames (18) fixedly connected to the inner wall of a cylinder (5), a plurality of circumferentially distributed strip supports (17) fixedly connected between the two first frames (18), a spirally distributed heating wire (16) connected to the strip supports (17), a fan (19) fixedly connected to the inner wall of the cylinder (5) near the air inlet (6), and the fan (19) and the heating wire (16) are connected to a controller (20).

3. A portable detection device for temperature sensing cables according to claim 2, characterized in that: A second frame (24) is fixedly connected to the inner wall of the cylinder (5), and the fan (19) is fixedly connected to the second frame (24).

4. A portable detection device for temperature sensing cables according to claim 1, characterized in that: The power supply device comprises a battery (22) connected in the handle (9), the handle (9) is connected with positive and negative electrodes (21) matching the battery (22), the inner and outer walls of the handle (9) are provided with display screens (7), and the display screen (7) and the positive and negative electrodes (21) are all connected to a controller (20); The bottom of the handle (9) is sealed by the base (10), and a stopper (4) abutting against the battery (22) is provided on the top of the base (10), and the base (10) and the bottom of the handle (9) are connected by a fixing mechanism.

5. A portable detection device for temperature sensing cables according to claim 1, characterized in that: Both ends of the first placement groove (11) and the second placement groove (15) are fixedly connected with an annular sealing strip (3) for wrapping the cable.

6. A portable detection device for temperature sensing cables according to claim 5, characterized in that: The annular sealing strip (3) is a rubber sealing strip.

Images