Temperature measuring device

Abstract

The utility model discloses a temperature measuring device. The temperature measuring device comprises a support; the wire coil is rotatably connected to the support, and a wire storage groove is formed in the wire coil; the perforated cable can be wound into a disc shape to be stored in the wire storage groove and can be wound and unwound along with rotation of the wire coil, and the perforated cable is provided with a first connecting end part and a second connecting end part; the temperature measuring element is fixed at the first connecting end part and is electrically connected with the perforated cable, and the temperature measuring element is suitable for extending into the temperature measuring hole to detect the temperature in the temperature measuring hole; and the control device is fixed on the wire coil or the bracket, and the control device is electrically connected with the perforated cable through the second connecting end part. The temperature measuring device is simple in structure, convenient to operate, deep in temperature detection depth and capable of detecting the position of a fire source hidden deep in a coal body.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a temperature measuring device. Background Art

[0002] In the process of preventing spontaneous combustion of coal in mines, in order to find the location of the fire source hidden in the coal body, a method of detecting the temperature inside the coal body is usually adopted, that is, drilling holes on the ground or underground at places where the coal body may spontaneously combust to form temperature measuring holes for temperature detection, and using a temperature measuring device to detect the temperature in the temperature measuring holes to determine the temperature distribution inside the coal body, and then determine the location of the fire source. The temperature measuring devices in the related art have complex structures, inconvenient operations, and shallow temperature detection depths, and cannot detect the fire source locations hidden deep inside the coal body. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a temperature measuring device, the temperature measuring device has a simple structure, convenient operation, and a deep temperature detection depth, and can detect the fire source locations hidden deep inside the coal body.

[0004] The temperature measuring device according to an embodiment of the utility model includes: a bracket; a wire reel, the wire reel is rotatably connected to the bracket, and a wire storage groove is formed inside the wire reel; a perforated cable, the perforated cable can be wound into a disk shape and stored in the wire storage groove, and can be wound and released with the rotation of the wire reel, the perforated cable has a first connection end and a second connection end; a temperature measuring element, the temperature measuring element is fixed to the first connection end and is electrically connected to the perforated cable, and the temperature measuring element is adapted to extend into the temperature measuring hole to detect the temperature in the temperature measuring hole; a control device, the control device is fixed to the wire reel or the bracket, and the control device is electrically connected to the perforated cable through the second connection end.

[0005] In addition, the temperature measuring device according to an embodiment of the utility model may further have the following additional technical features:

[0006] According to an embodiment of the utility model, the wire reel includes a wire reel body and a wire reel rotating shaft, the wire reel body and the wire reel rotating shaft are fixedly connected, the wire storage groove is defined by the wire reel body, the wire reel rotating shaft is rotatably connected to the bracket, and the control device is fixed to the wire reel rotating shaft.

[0007] According to an embodiment of the present utility model, the temperature measuring device further includes a retractable measuring device, and the retractable measuring device includes: a length measuring wheel and a pressing guide wheel. The length measuring wheel and the pressing guide wheel are both disposed on one side of the bracket facing the wire reel. The perforated cable is adapted to be clamped between the length measuring wheel and the pressing guide wheel, and when the perforated cable is retracted and extended, the perforated cable drives at least the length measuring wheel to rotate; an encoder, which is disposed on the side of the bracket away from the length measuring wheel, and a rotating shaft of the encoder is fixedly connected to a rotating shaft of the length measuring wheel. The encoder is used to calculate the number of rotations of the length measuring wheel, and the encoder is electrically connected to the control device.

[0008] According to an embodiment of the present utility model, when the control device is fixed on the wire reel, the encoder and the control device are electrically connected through a slip ring. The slip ring has a rotor part and a stator part that are electrically connected to each other. One of the rotor part and the stator part is disposed on the bracket and electrically connected to the encoder, and the other of the rotor part and the stator part is disposed on the wire reel and electrically connected to the control device.

[0009] According to an embodiment of the present utility model, the bracket includes: a bottom frame body; a first side frame body and a second side frame body. The first side frame body and the second side frame body are respectively connected to opposite sides of the bottom frame body. The wire reel is located between the first side frame body and the second side frame body, and two ends of a wire reel rotating shaft of the wire reel are respectively rotatably connected to the first side frame body and the second side frame body.

[0010] According to an embodiment of the present utility model, the first side frame body includes a first support rod, a second support rod, and a first rotating connection part. The first support rod has a first end and a second end, the second support rod has a third end and a fourth end, the first end and the third end are connected, and the second end and the fourth end extend downward in a direction away from each other and are connected to the bottom frame body. The first rotating connection part is fixedly connected between the first end and the third end, and one end of the wire reel rotating shaft is rotatably connected to the first rotating connection part; the second side frame body includes a third support rod, a fourth support rod, and a second rotating connection part. The third support rod has a fifth end and a sixth end, the fourth support rod has a seventh end and an eighth end, the fifth end and the seventh end are connected, and the sixth end and the eighth end extend downward in a direction away from each other and are connected to the bottom frame body. The second rotating connection part is fixedly connected between the fifth end and the seventh end, and the other end of the wire reel rotating shaft is rotatably connected to the second rotating connection part.

[0011] According to an embodiment of the present utility model, the first side frame body further includes a first extension rod. One end of the first extension rod is connected to the first end portion, and the other end of the first extension rod extends in a direction away from the first end portion in the direction from the second end portion to the first end portion. The second side frame body further includes a second extension rod. One end of the second extension rod is connected to the fifth end portion, and the other end of the second extension rod extends in a direction away from the fifth end portion in the direction from the sixth end portion to the fifth end portion.

[0012] According to an embodiment of the present utility model, the first side frame body further includes a first mounting plate. The first mounting plate is fixedly connected between the second support rod and the first extension rod, and the retracting and measuring device is fixed on the first mounting plate.

[0013] According to an embodiment of the present utility model, the second side frame body further includes a second mounting plate and a shoulder strap. The second mounting plate is connected to the side of the first support rod and the first extension rod away from the first mounting plate. The shoulder strap has a first shoulder strap connection portion and a second shoulder strap connection portion. A first shoulder strap hole for passing through the first shoulder strap connection portion is provided on the first mounting plate, and a second shoulder strap hole for passing through the second shoulder strap connection portion is provided on the second mounting plate.

[0014] According to an embodiment of the present utility model, a limit hook is connected to the bracket. The limit hook can be hooked on the wire reel to limit the relative rotation of the wire reel with respect to the bracket.

[0015] For the temperature measuring device according to the embodiment of the present utility model, by utilizing the toughness, elasticity and smooth surface of the perforated cable itself, it can smoothly pass through the temperature measuring hole. During the passing process, the perforated cable will not undergo plastic bending and wrinkling, and the depth range that the perforated cable can pass through is large. Thus, the temperature measuring element can be smoothly sent to the target depth position. And because the depth range that the perforated cable can pass through is large, the temperature deep inside the coal body can be detected, and further the position of the fire source hidden deep inside the coal body can be detected. In addition, by controlling the rotation direction and the number of rotation turns of the wire reel, the retracting and releasing length of the perforated cable can be controlled, and further the depth of its insertion into the temperature measuring hole can be controlled. The overall structure of the temperature measuring device is simple and the operation is convenient.

[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a perspective view of the temperature measuring device according to an embodiment of the present utility model from one angle;

[0019] Figure 2 is Figure 1 a perspective view of the temperature measuring device shown in

[0020] Figure 3 is Figure 1 a perspective view of the temperature measuring device shown in from another angle, where the perforated cable is not shown in the figure.

[0021] Reference numerals:

[0022] temperature measuring device 100;

[0023] bracket 10; chassis body 11; roller 111; first side frame body 12; first support rod 121; first end 1211; second end 1212; second support rod 122; third end 1221; fourth end 1222; first rotating connection part 123; first extension rod 124; first mounting plate 125; first strap hole 1251; second mounting plate 126; second strap hole 1261; guide ring 1262; second side frame body 13; third support rod 131; fifth end 1311; sixth end 1312; fourth support rod 132; seventh end 1321; eighth end 1322; second rotating connection part 133; second extension rod 134; cross bar 14; wire reel 20; wire reel body 21; limiting part 211; wire storage groove 2111; connecting part 212; annular reinforcing part 213; wire reel rotating shaft 22; perforated cable 30; first connection end 31; second connection end 32; control device 40; winding and measuring device 50; length measuring wheel 51; pressing guide wheel 52; encoder 53; electric slip ring 60. Detailed implementation manners

[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0025] Next, reference is made to Figures 1 - 3 describe the temperature measuring device 100 according to an embodiment of the present utility model.

[0026] It should be noted that the temperature measuring device 100 in the embodiments of the present application can be but is not limited to being used for detecting the internal temperature of coal bodies during the prevention and control of spontaneous combustion of mine coal. For example, it can also be used for detecting the internal temperature of rock masses such as gangue or hot dry rock, detecting the ground temperature during the construction of underground tunnels or caverns, and detecting the temperature inside pre-buried pipelines. In the following description of the present application, the temperature measuring device 100 being used for detecting the internal temperature of mine coal bodies will be taken as an example for illustration. However, it can be understood that the temperature measuring device 100 in the embodiments of the present application is not limited to this.

[0027] It can be understood that when the temperature measuring device 100 is used to detect the internal temperature of a coal body, a temperature measuring hole for temperature detection should be drilled in the coal body. The temperature measuring hole should ensure that the temperature measuring element (see below) of the temperature measuring device 100 can extend into it. Among them, the temperature measuring hole can be formed by drilling.

[0028] Reference Figures 1 - 3 As shown, the temperature measuring device 100 according to an embodiment of the present invention includes: a bracket 10, a wire reel 20, a perforated cable 30, a temperature measuring element (not shown in the figure), and a control device 40.

[0029] The wire reel 20 is rotatably connected to the bracket 10. A wire storage groove 2111 is formed inside the wire reel 20. The perforated cable 30 can be wound into a coil and stored in the wire storage groove 2111, and can be wound and unwound as the wire reel 20 rotates. The perforated cable 30 is a cable with high toughness, good elasticity, and a smooth surface. Therefore, the perforated cable 30 can smoothly pass through the temperature measuring hole, without plastic bending and wrinkling, and can pass through a deep depth. Exemplarily, the perforated cable 30 can be a fiberglass cable. Specifically, the fiberglass cable can include a copper core, a fiberglass reinforcement layer, and a high-pressure low-density polyethylene protective layer. The high-pressure low-density polyethylene protective layer wraps around the outside of the copper core, and the fiberglass reinforcement layer is filled between the copper core and the high-pressure low-density polyethylene protective layer. Since the perforated cable 30 has elasticity itself, when the perforated cable 30 is wound into a coil and stored in the wire storage groove 2111, the perforated cable 30 will abut against the inner wall of the wire storage groove 2111 under the action of its own elastic force.

[0030] The perforated cable 30 has a first connection end 31 and a second connection end 32. The first connection end 31 can be led out from the cable storage groove 2111. The temperature measuring element is fixed to the first connection end 31 and is electrically connected to the perforated cable 30. The temperature measuring element is adapted to extend into the temperature measuring hole to detect the temperature inside the temperature measuring hole. Specifically, the first connection end 31 of the perforated cable 30 can be led out from the cable storage groove 2111. The perforated cable 30 is adapted to extend into the temperature measuring hole from the first connection end 31, so as to send the temperature measuring element fixed to the first connection end 31 into the temperature measuring hole. By rotating the wire reel 20, the depth of the first connection end 31 extending into the temperature measuring hole can be adjusted, that is, by rotating the wire reel 20, the position of the temperature measuring element in the temperature measuring hole can be adjusted, so as to measure the temperature value at the position where the temperature measuring element is located. During the actual temperature measurement process, the rotation direction and the number of turns of the wire reel 20 can be controlled according to actual needs, so that the perforated cable 30 can send the temperature measuring element to the target depth position, thereby obtaining the temperature value at the target depth position.

[0031] Optionally, the temperature measuring element can be a temperature probe or a temperature sensor. The temperature probe can be a thermocouple temperature probe, a thermistor temperature probe, an infrared temperature probe, a thermal resistance temperature probe or a nano temperature probe, etc.

[0032] The control device 40 is fixed to the wire reel 20 or the bracket 10, and the control device 40 is electrically connected to the perforated cable 30 through the second connection end 32. That is to say, in some embodiments, as Figures 1 - 3 shown, the control device 40 is fixed to the wire reel 20; in other embodiments, the control device 40 is fixed to the bracket 10.

[0033] It should be noted that the statement "the control device 40 is fixed to the wire reel 20" in this application means that the control device 40 is connected to the wire reel 20 by a direct connection or an indirect connection method, and the control device 40 and the wire reel 20 are relatively stationary, and there is no relative movement between the control device 40 and the wire reel 20. The connection method between the control device 40 and the wire reel 20 can be, but is not limited to, connection methods such as welding, threaded connection or snap connection.

[0034] Similarly, the statement "the control device 40 is fixed to the bracket 10" in this application means that the control device 40 is connected to the bracket 10 by a direct connection or an indirect connection method, and the control device 40 and the bracket 10 are relatively stationary, and there is no relative movement between the control device 40 and the bracket 10.

[0035] The first connection end 31 of the perforated cable 30 is electrically connected to the temperature measuring element, and the second connection end 32 of the perforated cable 30 is electrically connected to the control device 40. The temperature measuring element and the control device 40 are electrically connected through the perforated cable 30. In this way, signals and data can be transmitted between the temperature measuring element and the control device 40 through the perforated cable 30. The signals and data related to the temperature measured by the temperature measuring element in the temperature measuring hole can be transmitted to the control device 40. The control device 40 can process and convert the received signals and data, and then send them to the display device for display. Thus, the user can read the temperature value at the target position inside the coal body through the display device.

[0036] It should be noted that the "display device" described in the embodiments of the present application can be any device that displays whether it is moving (e.g., video), or stationary (e.g., still image), and whether it is text or image. Exemplarily, the display device can be any product or component with a display function such as a mobile phone, a laptop computer, a tablet computer, a television, a personal digital assistant, a navigator, a wearable device, an in-vehicle display, a flight display, etc.

[0037] The display device can be fixed on the bracket 10 or the wire reel 20, or can be a movable display device. The connection between the display device and the control device 40 can be a wired electrical connection or a radio connection.

[0038] According to the temperature measuring device 100 of the embodiment of the present utility model, by utilizing the toughness, elasticity and smooth surface of the perforated cable 30 itself, it can smoothly pass through the temperature measuring hole. During the passing process, the perforated cable will not undergo plastic bending and wrinkling, and the depth range that the perforated cable can pass through is large. Thus, the temperature measuring element can be smoothly sent to the target depth position. And because the depth range that the perforated cable 30 can pass through is large, the temperature deep inside the coal body can be detected, and further the position of the fire source hidden deep inside the coal body can be detected. In addition, by controlling the rotation direction and the number of rotation turns of the wire reel 20, the retracting and extending length of the perforated cable 30 can be controlled, and further the depth of its insertion into the temperature measuring hole can be controlled. The overall structure of the temperature measuring device 100 is simple and the operation is convenient.

[0039] In some embodiments of the present utility model, please refer to Figures 1 - 3 , the wire reel 20 includes a wire reel body 21 and a wire reel rotating shaft 22. The wire reel body 21 and the wire reel rotating shaft 22 are fixedly connected. The wire storage groove 2111 is defined by the wire reel body 21. The wire reel rotating shaft 22 is rotatably connected to the bracket 10, that is, through the rotatable connection between the wire reel rotating shaft 22 and the bracket 10, the rotational connection between the wire reel 20 and the bracket 10 is realized.

[0040] It should be noted that "the wire reel body 21 and the wire reel rotating shaft 22 are fixedly connected" means that: the wire reel body 21 and the wire reel rotating shaft 22 are relatively fixed and will not move relative to each other. The wire reel body 21 and the wire reel rotating shaft 22 can be connected together by means such as welding or threaded connection, or the wire reel body 21 and the wire reel rotating shaft 22 can also be integrally formed parts. That is to say, the wire reel body 21 and the wire reel rotating shaft 22 are manufactured by integral processing. In this way, the connection strength between the wire reel body 21 and the wire reel rotating shaft 22 is high and it is not easy to break.

[0041] Optionally, please refer to Figures 1 - 3 , the control device 40 is fixed on the wire reel rotating shaft 22 and located inside the wire reel body 21. The control device 40 faces the storage wire groove 2111. This makes the overall structure of the temperature measuring device 100 compact, and the connection between the control device 40 and the perforated cable 30 is convenient.

[0042] Optionally, please refer to Figures 1 - 3 , the wire reel body 21 may include a plurality of limiting parts 211, a plurality of connecting parts 212 and an annular reinforcing part 213. The limiting part 211 can be formed into a "U" - shaped structure, which can be made of a "U" - shaped metal tube. The plurality of limiting parts 211 are circumferentially spaced apart, and the opening of each limiting part 211 faces the wire reel rotating shaft 22. The storage wire groove 2111 is formed inside the plurality of limiting parts 211. The plurality of connecting parts 212 correspond to the plurality of limiting parts 211 one by one. One end of the connecting part 212 is connected to one end of the limiting part 211, and the other end of the connecting part 212 is connected to the wire reel rotating shaft 22. That is to say, the connecting part 212 plays a role in connecting the limiting part 211 and the wire reel rotating shaft 22. The other end of each limiting part 211 is connected to the annular reinforcing part 213, and the annular reinforcing part 213 can be an annular metal ring.

[0043] The perforated cable 30 located in the storage wire groove 2111 can pass through the annular reinforcing part 213 and be led out of the storage wire groove 2111, so as to realize the pay - out process of the perforated cable 30. The perforated cable 30 located outside the storage wire groove 2111 can also enter the storage wire groove 2111 through the annular reinforcing part 213 for coiling and storage, so as to realize the rewinding process of the perforated cable 30. By setting the annular reinforcing part 213, the overall structural strength of the wire reel 20 can be enhanced while not affecting the pay - out and rewinding of the perforated cable 30. In some other embodiments, the wire reel body 21 may not include the above - mentioned annular reinforcing part 213.

[0044] Please refer to Figure 2, at least one guiding ring 1262 is provided on the support 10. That is to say, only one guiding ring 1262 can be provided on the support 10, or a plurality of guiding rings 1262 can be provided at intervals along the retracting and extending path of the perforated cable 30. The perforated cable 30 is passed through the guiding ring 1262 to guide its retracting and extending through the guiding ring 1262. By providing the guiding ring 1262, the perforated cable 30 can be retracted and extended under the guidance of the guiding ring 1262, so that the retracting and extending process of the perforated cable 30 is smoother and more stable.

[0045] It should be noted that in Figure 2 the shown drawings, the electrical connection lines between the perforated cable 30 and the temperature measuring element, and between the perforated cable 30 and the control device 40 are not shown. It can be understood that the electrical connection lines between the perforated cable 30 and the temperature measuring element, and between the perforated cable 30 and the control device 40 can be routed according to actual needs. Structures for fixing the electrical connection lines can also be provided at appropriate positions on the cable reel 20 and / or the support 10 as needed, such as cable ties or fixing rings, etc. This can make the routing of the electrical connection lines on the temperature measuring device 100 clearer and the layout more regular, thus facilitating maintenance.

[0046] Of course, in some embodiments, avoiding wire grooves can also be provided on the cable reel 20 and / or the support 10, and the above-mentioned electrical connection lines can be accommodated in the avoiding wire grooves. This can not only make the overall structure of the temperature measuring device 100 more regular and beautiful, but also play a protective role for the electrical connection lines, preventing them from being scratched or collided during operation and being damaged, thereby improving the reliability of the temperature measuring device 100.

[0047] In some embodiments of the present utility model, the temperature measuring device 100 further includes a retracting and measuring device 50. The retracting and measuring device 50 includes a length measuring wheel 51, a pressing and guiding wheel 52, and an encoder 53. The length measuring wheel 51 and the pressing and guiding wheel 52 are both provided on one side of the support 10 facing the cable reel 20. The perforated cable 30 is adapted to be clamped between the length measuring wheel 51 and the pressing and guiding wheel 52, and when the perforated cable 30 is retracted and extended, the perforated cable 30 at least drives the length measuring wheel 51 to rotate. The encoder 53 is provided on one side of the support 10 away from the length measuring wheel 51. The rotating shaft of the encoder 53 is fixedly connected to the rotating shaft of the length measuring wheel 51, and there is no relative movement between the rotating shaft of the encoder 53 and the rotating shaft of the length measuring wheel 51. When the perforated cable 30 is retracted and extended, the rotating shaft of the encoder 53 and the rotating shaft of the length measuring wheel 51 rotate synchronously. The encoder 53 is used to calculate the number of turns of the length measuring wheel 51 rotating, and the encoder 53 is electrically connected to the control device 40.

[0048] Specifically, in some embodiments, the length measuring wheel 51 and the pressing and guiding wheel 52 are both rotatably connected to the bracket 10. That is to say, there is a rotatable connection between the length measuring wheel 51 and the bracket 10, and between the pressing and guiding wheel 52 and the bracket 10; in some embodiments, only the length measuring wheel 51 is rotatably connected to the bracket 10, and the pressing and guiding wheel 52 is fixedly connected to the bracket 10, that is, the pressing and guiding wheel 52 and the bracket 10 are relatively stationary, and there is no relative rotation between the pressing and guiding wheel 52 and the bracket 10.

[0049] The perforated cable 30 is clamped between the length measuring wheel 51 and the pressing and guiding wheel 52. The length measuring wheel 51 and the pressing and guiding wheel 52 have a pressing force on the perforated cable 30. When the perforated cable 30 is wound and unwound, the perforated cable 30 will move between the length measuring wheel 51 and the pressing and guiding wheel 52. At this time, frictional forces will be generated between the length measuring wheel 51 and the perforated cable 30, and between the pressing and guiding wheel 52 and the perforated cable 30. When only the length measuring wheel 51 is rotatably connected to the bracket 10 and the pressing and guiding wheel 52 is fixedly connected to the bracket 10, under the action of the frictional force, only the length measuring wheel 51 rotates; when the length measuring wheel 51 and the pressing and guiding wheel 52 are both rotatably connected to the bracket 10, when the perforated cable 30 is wound and unwound, under the action of the frictional force, both the length measuring wheel 51 and the pressing and guiding wheel 52 rotate. It can be understood that when the pressing and guiding wheel 52 is rotatably connected to the bracket 10, when the perforated cable 30 is wound and unwound, the pressing and guiding wheel 52 will also rotate, and the frictional force generated between the perforated cable 30 and the pressing and guiding wheel 52 is smaller, which is more labor-saving when driving the wire reel 20 to rotate.

[0050] It can be understood that the rotating shaft of the encoder 53 rotates synchronously with the rotating shaft of the length measuring wheel 51. The encoder 53 can calculate the number of turns of rotation of the length measuring wheel 51. When the outer peripheral dimension of the length measuring wheel 51 is determined, when the number of turns of rotation of the length measuring wheel 51 is obtained, the length of the perforated cable 30 wound and unwound can be calculated, and further the depth of the temperature measuring element in the temperature measuring hole can be obtained.

[0051] Specifically, when the perforated cable 30 is wound and unwound, the perforated cable 30 drives the length measuring wheel 51 to rotate. The rotation of the length measuring wheel 51 will drive the rotating shaft of the encoder 53 to rotate synchronously. The encoder 53 collects information such as the number of turns of rotation of the rotating shaft and the direction of rotation and sends the collected signal to the control device 40. The control device 40 calculates the length of the perforated cable 30 wound and unwound according to the information collected by the encoder 53, and obtains the depth information of the temperature measuring element in the temperature measuring hole from the length of the perforated cable 30 wound and unwound. The control device 40 sends the calculated depth information to the display device for display on the display device, so as to facilitate the staff to view.

[0052] Based on this, the staff can not only automatically obtain the temperature value measured by the temperature measuring element in the temperature measuring hole, but also automatically obtain the depth position of the temperature measuring element in the temperature measuring hole (i.e., the temperature measuring depth), thus eliminating the manual measurement of the temperature measuring depth, and the temperature measuring device 100 is more intelligent.

[0053] Further, please refer to Figure 2 , the control device 40 is fixed on the wire reel 20. Specifically, the control device 40 can be fixed on the wire reel rotating shaft 22. The encoder 53 is fixed on the bracket 10. When the perforated cable 30 is wound and unwound, relative rotation will occur between the encoder 53 and the control device 40. An electric slip ring 60 can be arranged between the wire reel 20 and the bracket 10, and the encoder 53 and the control device 40 are rotationally electrically connected through the electric slip ring 60. Specifically, the electric slip ring 60 has a rotor part and a stator part that are electrically connected to each other. One of the rotor part and the stator part is arranged on the bracket 10 and electrically connected to the encoder 53, and the other of the rotor part and the stator part is arranged on the wire reel 20 and electrically connected to the control device 40.

[0054] It can be understood that in some other embodiments, the control device 40 is fixed on the bracket 10. At this time, no relative rotation will occur between the encoder 53 and the control device 40, and at this time, the encoder 53 and the control device 40 may not need to be electrically connected through the electric slip ring 60. At the same time, the second connection end 32 of the perforated cable 30 and the control device 40 will have relative rotation when the perforated cable 30 is wound and unwound. At this time, the second connection end 32 of the perforated cable 30 and the control device 40 can be rotationally electrically connected through the electric slip ring 60.

[0055] In an embodiment of the present application, please refer to Figures 1 - 3 , the bracket 10 includes: a bottom frame body 11, a first side frame body 12 and a second side frame body 13. The first side frame body 12 and the second side frame body 13 are respectively connected to opposite sides of the bottom frame body 11. The wire reel 20 is located between the first side frame body 12 and the second side frame body 13, and both ends of the wire reel rotating shaft 22 of the wire reel 20 are rotatably connected to the first side frame body 12 and the second side frame body 13 respectively. Optionally, rollers 111 can be arranged on the bottom frame body 11, so that it is more labor-saving when moving the temperature measuring device 100.

[0056] Further, please refer to Figures 1 - 3, the first side frame body 12 includes a first support rod 121, a second support rod 122, and a first rotating connection portion 123. The first support rod 121 has a first end 1211 and a second end 1212. The second support rod 122 has a third end 1221 and a fourth end 1222. The first end 1211 and the third end 1221 are connected. The second end 1212 and the fourth end 1222 extend downward in a direction away from each other and are connected to the chassis body 11. The first rotating connection portion 123 is fixedly connected between the first end 1211 and the third end 1221. One end of the wire reel rotating shaft 22 is rotatably connected to the first rotating connection portion 123.

[0057] The second side frame body 13 includes a third support rod 131, a fourth support rod 132, and a second rotating connection portion 133. The third support rod 131 has a fifth end 1311 and a sixth end 1312. The fourth support rod 132 has a seventh end 1321 and an eighth end 1322. The fifth end 1311 and the seventh end 1321 are connected. The sixth end 1312 and the eighth end 1322 extend downward in a direction away from each other and are connected to the chassis body 11. The second rotating connection portion 133 is fixedly connected between the fifth end 1311 and the seventh end 1321. The other end of the wire reel rotating shaft 22 is rotatably connected to the second rotating connection portion 133.

[0058] In this way, a triangular support structure is formed between the first support rod 121, the second support rod 122, and the chassis body 11. A triangular support structure is also formed between the third support rod 131, the fourth support rod 132, and the chassis body 11. As a result, the overall structural strength of the bracket 10 is high, and the rotational support of the bracket 10 for the wire reel 20 is stable and reliable.

[0059] By fixedly connecting the first rotating connection portion 123 between the first end 1211 and the third end 1221, and fixedly connecting the second rotating connection portion 133 between the fifth end 1311 and the seventh end 1321, not only is the overall structure of the bracket 10 compact, but also the overall structural strength of the bracket 10 is high.

[0060] Optionally, the first rotating connection portion 123 can be separately processed and then fixedly connected between the first end 1211 and the third end 1221 by means of welding or threaded connection, etc.; or optionally, the first rotating connection portion 123 and the first support rod 121 and the second support rod 122 are integrally formed parts, which can make the connection between the first rotating connection portion 123 and the first support rod 121 and the second support rod 122 more stable and reliable.

[0061] Similarly, the second rotating connecting portion 133 can be separately processed and then fixed between the fifth end portion 1311 and the seventh end portion 1321 by means of welding or threaded connection; alternatively, the second rotating connecting portion 133 and the third support rod 131 and the fourth support rod 132 are integrally formed parts.

[0062] Furthermore, please continue to refer to Figures 1 - 3 , the first side frame body 12 further includes a first extension rod 124. One end of the first extension rod 124 is connected to the first end portion 1211, and the other end of the first extension rod 124 extends in a direction away from the first end portion 1211 in the direction from the second end portion 1212 to the first end portion 1211; the second side frame body 13 further includes a second extension rod 134. One end of the second extension rod 134 is connected to the fifth end portion 1311, and the other end of the second extension rod 134 extends in a direction away from the fifth end portion 1311 in the direction from the sixth end portion 1312 to the fifth end portion 1311. By providing the first extension rod 124 and the second extension rod 134, when the staff moves the temperature measuring device 100, the staff can move the temperature measuring device 100 by grasping the first extension rod 124 and the second extension rod 134, thereby facilitating the operation of the staff.

[0063] Furthermore, please continue to refer to Figures 1 - 3 , a cross bar 14 is further provided between the first extension rod 124 and the second extension rod 134. Two ends of the cross bar 14 are respectively connected to one end of the first extension rod 124 away from the first end portion 1211 and one end of the second extension rod 134 away from the fifth end portion 1311. By providing the cross bar 14, when the staff moves the temperature measuring device 100, the staff can move the temperature measuring device 100 by grasping the cross bar 14, thereby facilitating the operation of the staff. In addition, by providing the cross bar 14, the first extension rod 124 and the second extension rod 134 can be connected to form a whole, thereby making the overall structural strength of the bracket 10 better.

[0064] Wherein, both between the first extension rod 124 and the cross bar 14 and between the second extension rod 134 and the cross bar 14 are integrally formed parts. Thus, the connection strength between the first extension rod 124 and the cross bar 14 and between the second extension rod 134 and the cross bar 14 is high. Of course, the present application is not limited to this. In some other embodiments, the first extension rod 124 and the cross bar 14 may also be split structural parts, and the second extension rod 134 and the cross bar 14 may also be split structural parts.

[0065] In some embodiments of the present application, please refer to Figures 1 - 3, the first side frame body 12 further includes a first mounting plate 125. The first mounting plate 125 is fixedly connected between the second support rod 122 and the first extension rod 124, and the retracting and measuring device 50 is fixed on the first mounting plate 125. Specifically, the length measuring wheel 51 and the pressing and guiding wheel 52 are connected to one side of the first mounting plate 125 facing the wire reel 20, and the encoder 53 is connected to the side of the first mounting plate 125 away from the wire reel 20. A perforation is provided on the first mounting plate 125, and the rotating shafts of the length measuring wheel 51 and the encoder 53 pass through the perforation for fixed connection. By providing the first mounting plate 125, it is convenient to install the retracting and measuring device 50.

[0066] Further, please continue to refer to Figures 1 - 3 , the second side frame body 13 further includes a second mounting plate 126. The second mounting plate 126 is connected to the side of the first support rod 121 and the first extension rod 124 away from the first mounting plate 125, and the guide ring 1262 in the above-described embodiment can be fixed to the side of the second mounting plate 126 facing the wire reel 20. That is, by providing the second mounting plate 126, it is convenient to install the guide ring 1262.

[0067] Further, please continue to refer to Figures 1 - 3 , the temperature measuring device may further include a shoulder strap (not shown in the figure). The shoulder strap has a first shoulder strap connection portion and a second shoulder strap connection portion. A first shoulder strap hole 1251 for passing through the first shoulder strap connection portion is provided on the first mounting plate 125, and a second shoulder strap hole 1261 for passing through the second shoulder strap connection portion is provided on the second mounting plate 126. By passing the first shoulder strap connection portion through the first shoulder strap hole 1251 and the second shoulder strap connection portion through the second shoulder strap hole 1261, the shoulder strap can be tied to the bracket 10, so that the staff can carry the temperature measuring device 100 on the back using the shoulder strap, thus facilitating the long-distance movement of the temperature measuring device 100 during the construction process for the staff.

[0068] In some embodiments of the present invention, a limit hook (not shown in the figure) is connected to the bracket 10. The limit hook can be hooked on the wire reel 20 to limit the relative rotation of the wire reel 20 with respect to the bracket 10, thereby avoiding the automatic retraction and release of the perforated cable 30.

[0069] In some embodiments of the present utility model, the chassis body 11 is formed with a water retaining structure (not shown in the figure). The water retaining structure includes a water retaining bottom plate and a water retaining side plate that are connected to each other. The water retaining side plate surrounds the water retaining bottom plate, and the water retaining side plate and the water retaining bottom plate jointly define an avoidance cavity with an open top. At least a part of the wire reel 20 is accommodated in the avoidance cavity. The avoidance cavity is used to avoid the wire reel 20 to prevent the wire reel 20 from colliding with the water retaining structure during rotation. By forming the water retaining structure on the chassis body 11, when the temperature measuring device 100 is used in an application scenario with accumulated water such as underground, the water retaining structure can prevent the accumulated water from soaking the perforated cable 30 stored in the wire reel 20.

[0070] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0071] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0072] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A temperature measuring device, characterized in that, Comprising: A bracket; A wire reel, which is rotatably connected to the bracket, and a wire storage groove is formed in the wire reel; A perforated cable, which can be wound into a disc shape and stored in the wire storage groove, and can be wound and unwound with the rotation of the wire reel. The perforated cable has a first connection end and a second connection end; A temperature measuring element, which is fixed to the first connection end and electrically connected to the perforated cable, and is adapted to extend into a temperature measuring hole to detect the temperature in the temperature measuring hole; A control device, which is fixed to the wire reel or the bracket, and the control device is electrically connected to the perforated cable through the second connection end.

2. The temperature measuring device according to claim 1, wherein The wire reel includes a wire reel body and a wire reel rotating shaft. The wire reel body and the wire reel rotating shaft are fixedly connected. The wire storage groove is defined by the wire reel body. The wire reel rotating shaft is rotatably connected to the bracket, and the control device is fixed to the wire reel rotating shaft.

3. The temperature measuring device according to claim 1, characterized in that, It further includes a winding and unwinding measurement device, and the winding and unwinding measurement device includes: A length measuring wheel and a pressing and guiding wheel. The length measuring wheel and the pressing and guiding wheel are both arranged on one side of the bracket facing the wire reel. The perforated cable is adapted to be clamped between the length measuring wheel and the pressing and guiding wheel, and when the perforated cable is wound and unwound, the perforated cable at least drives the length measuring wheel to rotate; An encoder, which is arranged on one side of the bracket away from the length measuring wheel. The rotating shaft of the encoder is fixedly connected to the rotating shaft of the length measuring wheel. The encoder is used to calculate the number of turns of the length measuring wheel, and the encoder is electrically connected to the control device.

4. The temperature measuring device according to claim 3, characterized in that, When the control device is fixed to the wire reel, the encoder and the control device are electrically connected through a slip ring. The slip ring has a rotor part and a stator part that are electrically connected to each other. One of the rotor part and the stator part is arranged on the bracket and electrically connected to the encoder, and the other of the rotor part and the stator part is arranged on the wire reel and electrically connected to the control device.

5. The temperature measuring device according to any one of claims 1-4, characterized in that, The bracket includes: A bottom frame body; A first side frame body and a second side frame body. The first side frame body and the second side frame body are respectively connected to opposite sides of the bottom frame body. The wire reel is located between the first side frame body and the second side frame body, and both ends of the wire reel rotating shaft of the wire reel are rotatably connected to the first side frame body and the second side frame body respectively.

6. The temperature measuring device according to claim 5, wherein, The first side frame body includes a first support rod, a second support rod and a first rotating connection part. The first support rod has a first end and a second end. The second support rod has a third end and a fourth end. The first end and the third end are connected. The second end and the fourth end extend downward in a direction away from each other and are connected to the bottom frame body. The first rotating connection part is fixedly connected between the first end and the third end. One end of the wire reel rotating shaft is rotatably connected to the first rotating connection part; The second side frame body includes a third support rod, a fourth support rod, and a second rotating connection part. The third support rod has a fifth end and a sixth end. The fourth support rod has a seventh end and an eighth end. The fifth end and the seventh end are connected. The sixth end and the eighth end extend downward in a direction away from each other and are connected to the bottom frame body. The second rotating connection part is fixedly connected between the fifth end and the seventh end. The other end of the wire reel rotating shaft is rotatably connected to the second rotating connection part.

7. The temperature measuring device according to claim 6, characterized in that, The first side frame body further includes a first extension rod. One end of the first extension rod is connected to the first end. The other end of the first extension rod extends in a direction away from the first end in a direction from the second end towards the first end. The second side frame body further includes a second extension rod. One end of the second extension rod is connected to the fifth end. The other end of the second extension rod extends in a direction away from the fifth end in a direction from the sixth end towards the fifth end.

8. The temperature measuring device according to claim 7, characterized in that, The temperature measuring device includes the retractable measuring device described in claim 3. The first side frame body further includes a first mounting plate. The first mounting plate is fixedly connected between the second support rod and the first extension rod. The retractable measuring device is fixed on the first mounting plate.

9. The temperature measuring device according to claim 8, wherein, The second side frame body further includes a second mounting plate and a shoulder strap. The second mounting plate is connected to the side of the first support rod and the first extension rod away from the first mounting plate. The shoulder strap has a first shoulder strap connection part and a second shoulder strap connection part. A first shoulder strap hole for passing through the first shoulder strap connection part is provided on the first mounting plate. A second shoulder strap hole for passing through the second shoulder strap connection part is provided on the second mounting plate.

10. The temperature measuring device according to claim 1, characterized in that, A limit hook is connected to the bracket. The limit hook can be hooked on the wire reel to limit the relative rotation of the wire reel with respect to the bracket.

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