A cable head on-line temperature measuring device

Abstract

The application relates to the technical field of power monitoring, in particular to a cable head on-line temperature detector. The cable head on-line temperature detector comprises two outer protection half housings and two inner protection half housings connected and arranged in the two outer protection half housings respectively, information boxes and a plurality of extrusion detection assemblies are arranged on the inner protection half housings, and a pressure control cylinder arranged in the outer protection half housing is used to draw air in the inner protection half housing into the inner cavity of the outer protection half housing, so that the end portions of the extrusion detection assemblies are attached to the outer wall of the cable head, the all-around real-time temperature detection of the cable head is realized, the inner protection half housing is in a low-pressure environment and contains less air, the aging of the cable head in the inner protection half housing is reduced, the cable head has a better working environment, and the overall detector has stronger use functionality.

Description

Technical Field

[0001] The present invention relates to the technical field related to power monitoring, and in particular to an online temperature measurer for a cable head. Background Art

[0002] In order to make the laid cable a continuous line, each section of the cable is connected into a whole through connection points. These connection points are called cable joints. Cable joints are used to lock and fix the incoming and outgoing cables, and play a role in waterproofing, dustproofing and vibration proofing.

[0003] In order to reduce the hidden dangers of leakage, thermal expansion and even explosion caused by the gradual aging of the insulation layer of the cable head, a temperature detector is set at the cable head to perform online temperature detection. The existing online temperature detection method for the cable head is mostly to set a protective shell at the cable head, install a real-time temperature detection device in the protective shell to detect the temperature of the cable head, and then send the detection signal to an external receiver. There is only a single detection point in the protective shell, and the temperature detection accuracy of the cable head is poor. In addition, the overall detection device has a simple structure and poor functionality. Therefore, an online temperature detector for the cable head is proposed. Summary of the Invention

[0004] The object of the present invention is to provide an online temperature detector for a cable head to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cable head online temperature detector comprises two outer protective half shells, an inner protective half shell being connected to the inner periphery of the outer protective half shells, a cable head being surrounded by the inner protective half shells, a plurality of extrusion detection components being provided on the inner protective half shells, an information box being provided on the outer wall of the inner protective half shells, a plurality of the extrusion detection components being connected to the information box circuit, a pressure control cylinder being provided on the outer protective half shells, an exhaust pipe being provided on one of the inner protective half shells, the pressure control cylinder being used to extract the gas in the inner protective half shells into the outer protective half shells, and the extrusion detection component being movable in the inner protective half shells and fitting against the outer wall of the cable head.

[0007] As a further solution of the present invention: the extrusion detection assembly includes a temperature detector and a movable annular plate connected to the middle of the temperature detector, the movable annular plate is trumpet-shaped, the shape and size of the outer end wall of the movable annular plate are consistent with the shape and size of the inner wall of the mounting sleeve, the outer end wall of the movable annular plate is in contact with the inner wall of the mounting sleeve, the temperature detector is provided with a detection head near one end of the cable head, and the other end of the temperature detector is provided with a wiring head.

[0008] As a further solution of the present invention: an arc-shaped heat-conducting plate is connected to the detection head, and the inner wall of the arc-shaped heat-conducting plate is in contact with the outer wall of the cable head.

[0009] As a further solution of the present invention: a mounting plate is provided on the inner protective half shell, the information box is installed on the mounting plate, a main line is provided on the mounting plate, one end of the main line is connected to the information box, a plurality of secondary lines are connected to the main line, and the ends of the secondary lines are connected to corresponding terminal heads.

[0010] As a further solution of the present invention: a threaded rod is arranged in the pressure control cylinder through a bearing sleeve, one end of the threaded rod extends to the outside of the pressure control cylinder and is connected to a turning handle, the turning handle is placed outside the pressure control cylinder, and a threaded sleeve is connected to the threaded rod, and a piston plate is connected to the threaded sleeve, and the outer wall of the piston plate is in contact with the inner wall of the pressure control cylinder.

[0011] As a further solution of the present invention: a closing assembly is provided on the outer wall of the inner protective half shell on which the exhaust pipe is provided, and an extrusion assembly is provided on the side of the pressure control cylinder. The closing assembly includes a first fixed sleeve provided on the outer wall of the inner protective half shell and a movable rod provided in the first fixed sleeve, one end of the movable rod extends through the exhaust pipe into the inner protective half shell and is connected to a plug, and the other end of the movable rod is connected to a pressure plate, and the extrusion assembly can squeeze the pressure plate to drive the plug to close the exhaust pipe.

[0012] As a further solution of the present invention: a movable groove is provided on the side of the pressure control cylinder, and a second fixed sleeve is provided at a position on the inner wall of the pressure control cylinder corresponding to the movable groove. The extrusion assembly includes a straight rod arranged in the second fixed sleeve and a push plate connected to one end of the straight rod. An elastic member is sleeved on the straight rod, and both ends of the elastic member are respectively abutted against the push plate and the second fixed plate. One end of the push plate passes through the movable groove and extends outside the pressure control cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the thermometer protects the cable head by setting an outer protective half-shell and an inner protective half-shell, and the inner protective half-shell is provided with an information box and several extrusion detection components, which cooperate with the pressure control cylinder provided in the outer protective half-shell to draw the air in the inner protective half-shell into the inner cavity of the outer protective half-shell, so that the ends of each extrusion detection component are in contact with the outer wall of the cable head, realizing all-round real-time temperature detection of the cable head, and at the same time, the inner protective half-shell is in a low-pressure environment and has a low air content, which can reduce the aging of the cable head in the inner protective half-shell, so that the cable head has a better working environment, the overall thermometer has a simple structure and is easy to install in combination, and can protect the cable head well while ensuring the detection effect, has high functionality, and has a stronger use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1The whole external structure schematic view of the embodiment of the present application.

[0015] Figure 2 The whole internal structure front view of the embodiment of the present application.

[0016] Figure 3 The structure schematic view of the inner protection half shell of the embodiment of the present application.

[0017] Figure 4 The connection relationship schematic view among the pressure control cylinder, the closing assembly and the inner protection half shell of the embodiment of the present application.

[0018] Figure 5 The whole internal structure side view of the embodiment of the present application.

[0019] Figure 6 The internal structure schematic view of the pressure control cylinder of the embodiment of the present application.

[0020] Figure 7 The structure schematic view of the extrusion detection assembly of the embodiment of the present application.

[0021] Figure 8 The structure schematic view of the movable rod of the embodiment of the present application.

[0022] Wherein: the outer protection half shell-1, the outer half clamping sleeve-101, the sealing layer-102, the extension plate-103, the connecting rod-104, the inner protection half shell-2, the inner half clamping sleeve-201, the heat preservation layer-202, the exhaust pipe-203, the mounting plate-3, the main line-301, the auxiliary line-302, the information box-4, the mounting sleeve-5, the limiting block-501, the elastic inner sleeve-502, the extrusion detection assembly-6, the temperature detector-601, the movable annular plate-602, the wire connector-603, the detection head-604, the arc-shaped heat conduction plate-605, the closing assembly-7, the first fixing sleeve-701, the movable rod-702, the sealing plug-703, the pressure receiving plate-704, the pressure control cylinder-8, the bearing sleeve-801, the threaded rod-802, the rotating handle-803, the threaded sleeve-804, the piston plate-805, the movable groove-806, the extrusion assembly-9, the second fixing sleeve-901, the straight rod-902, the limiting plate-903, the push plate-904, the elastic member-905, the cable-10, the cable head-11. DETAILED DESCRIPTION

[0023] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] Embodiment one

[0025] Please refer to Figure 1 , 25. A cable head online temperature detector, comprising two outer protective half shells 1, wherein the inner periphery of the outer protective half shells 1 is connected to an inner protective half shell 2 by a connecting rod 104, and the two outer protective half shells 1 and the two inner protective half shells 2 can be combined into a complete shell, and the ends of the outer protective half shells 1 and the inner protective half shells 2 are respectively connected to an outer half-clip sleeve 101 and an inner half-clip sleeve 201, and the outer half-clip sleeve 101 and the inner half-clip sleeve 201 cooperate to position and clamp the cable 10, and an extension plate 103 is provided on the side of the outer half-clip sleeve 101 to realize the installation of the outer protective half shell 1, and the extension plates 103 and the extension plates 103 can be fixedly connected by bolts, and the inner wall of the outer half-clip sleeve 101 is provided with a sealing layer 102, which can be made of elastic sealing rubber and other materials, and the inner wall of the inner protective half shell 2 is provided with an insulation layer 202 to improve the temperature detection effect, and the inner protective half shell 2 surrounds the cable head 11. The inner protective half shell 2 is provided with a number of extrusion detection components 6, and the outer wall of the inner protective half shell 2 is provided with an information box 4. Several of the extrusion detection components 6 are circuit-connected to the information box 4. The extrusion detection component 6 can detect the surface temperature of the cable head 11, and the detection result is transmitted to the information box 4. The information box 4 is provided with a data receiving module and a data sending module. The detection data information is sent to the signal receiving device outside the detector through the information box 4, thereby realizing the online temperature detection function of the cable head 11. The outer protective half shell 1 is provided with a pressure control cylinder 8, and one of the inner protective half shells 2 is provided with an exhaust pipe 203. The pressure control cylinder 8 cooperates with the exhaust pipe 203 to extract the gas in the inner protective half shell 2 into the outer protective half shell 1. The extrusion detection component 6 can move and fit with the outer wall of the cable head 11 under the pressure change in the inner protective half shell 2, and at the same time reduce the air in the inner protective half shell 2, thereby reducing the aging of the cable head 11.

[0026] See also Figure 2 、 3, 5, 7, the extrusion detection assembly 6 comprises a temperature detector 601 and a movable ring plate 602 connected in the middle of the temperature detector 601, the outer wall of the movable ring plate 602 is attached to the inner wall of the mounting sleeve 5, the inner wall of the mounting sleeve 5 is provided with an elastic inner sleeve body 502 to improve the sealing connection with the movable ring plate 602, the end of the mounting sleeve 5 is provided with a limiting block 501 to prevent the movable ring plate 602 from being separated from the inside of the mounting sleeve 5, the temperature detector 601 is provided with a detection head 604 close to one end of the cable head 11, the movable ring plate 602 is trumpet-shaped, the shape and size of the outer end wall of the movable ring plate 602 are consistent with the shape and size of the inner wall of the mounting sleeve 5, so that when the internal pressure of the inner protection half shell 2 changes, the movable ring plate 602 can drive the temperature detector 601 to move, and then the detection head 604 can better attach to the outer wall of the cable head 11, the other end of the temperature detector 601 is provided with a wiring head 603, the detection head 604 is connected with an arc-shaped heat conduction plate 605, the inner wall of the arc-shaped heat conduction plate 605 is attached to the outer wall of the cable head 11, the arc-shaped heat conduction plate 605 is made of a material with good heat conduction performance, and the temperature detection effect on the surface of the cable head 11 is improved by increasing the contact area.

[0027] Please refer to Figure 2 , 3 , 5, the mounting plate 3 is arranged on the inner protection half shell 2, the information box 4 is mounted on the mounting plate 3, the main line 301 is arranged on the mounting plate 3, one end of the main line 301 is connected with the information box 4, a plurality of auxiliary lines 302 are connected with the main line 301, and the end of the auxiliary line 302 is connected with the corresponding wiring head 603. The auxiliary line 302 has a certain length so as not to affect the movement of the temperature detector 601.

[0028] Example two

[0029] Please refer to Figure 2 , 4 , 6, on the basis of example one, a threaded rod 802 is arranged in the pressure control cylinder 8 through a bearing sleeve 801, one end of the threaded rod 802 extends to the outside of the pressure control cylinder 8 and is connected with a handle 803, the handle 803 is arranged outside the pressure control cylinder 8, a threaded sleeve 804 is connected with the threaded rod 802 in a matched mode, a piston plate 805 is connected with the threaded sleeve 804, the outer wall of the piston plate 805 is attached to the inner wall of the pressure control cylinder 8, both ends of the pressure control cylinder 8 are open, the position of the piston plate 805 in the pressure control cylinder 8 is adjusted to drive the adjustment of the internal pressure of the outer protection half shell 1, and then the internal pressure of the inner protection half shell 2 is affected through the exhaust pipe 203.

[0030] Please refer to Figure 2 , 3, 4, 5, 6, 8, the inner protective half shell 2 outer wall provided with exhaust pipe 203 provided with a closed assembly 7, the pressure control cylinder 8 side provided with extrusion assembly 9, the closed assembly 7 includes a first fixed sleeve 701 provided on the outer wall of the inner protective half shell 2 and a movable rod 702 provided in the first fixed sleeve 701, one end of the movable rod 702 extends into the inner protective half shell 2 through the exhaust pipe 203 and is connected with the plug 703, the other end of the movable rod 702 is connected with the pressure plate 704, the extrusion assembly 9 can extrude the pressure plate 704 to drive the plug 703 to close the exhaust pipe 203, in this embodiment, the pressure control cylinder 8 side is provided with a movable slot 806, the inner side wall of the pressure control cylinder 8 is provided with a second fixed sleeve 901 at the corresponding position of the movable slot 806, the extrusion assembly 9 includes a straight rod 902 provided in the second fixed sleeve 901 and a push plate 904 connected with one end of the straight rod 902, the other end of the straight rod 902 is connected with a limiting plate 903 to prevent it from accidentally separating from the second fixed sleeve 901, the straight rod 902 is provided with an elastic member 905, the two ends of the elastic member 905 are respectively abutted with the push plate 904 and the second fixed plate, one end of the push plate 904 extends out of the pressure control cylinder 8 through the movable slot 806, the end of the push plate 904 can contact the pressure plate 704 and drive the pressure plate 704 to move, the movement of the pressure plate 704 drives the movable rod 702 to move, thereby driving the plug 703 to block the exhaust pipe 203, in this embodiment, the part of the movable rod 702 connected with the first fixed sleeve 701 is not provided as a cylindrical rod, the through hole in the first fixed sleeve 701 corresponds to the part of the rod, so that the movable rod 702 does not rotate relative to the first fixed sleeve 701, thereby enabling the plug 703 to remain in the same vertical position as the exhaust pipe 203, the exhaust pipe 203 is provided as a tapered pipe, the plug 703 is provided as a tapered plug, and the blocking effect of the two, the extrusion assembly 9 is arranged at the rear half position of the pressure control cylinder 8, so that the pressure control cylinder 8 drives the closed assembly 7 to close the exhaust pipe 203 after the air in the inner protective half shell 2 is exhausted, thereby effectively preventing the air in the outer protective half shell 1 from flowing into the air in the inner protective half shell 2.

[0031] Working principle: When the thermometer is in use, the piston plate 805 is adjusted to the position where the pressure control cylinder 8 extends into one end of the outer protective half-shell 1 through the threaded rod 802, the information box 4 and each temperature detector 601 are installed and connected, the cable head 11 is placed in the inner protective half-shell 2, and the two outer protective half-shells 1 are assembled and installed through the extension plate 103. The turning handle 803 is turned to drive the threaded rod 802 to rotate, and then the piston plate 805 is driven to move in the pressure control cylinder 8 through the threaded sleeve 804. The movement of the piston plate 805 increases the volume of the area connecting the inner cavity of the pressure control cylinder 8 and the inner cavity of the outer protective half-shell 1 , thereby reducing the pressure inside the outer protective half shell 1, and the air in the inner protective half shell 2 flows into the outer protective half shell 1. The reduced pressure inside the inner protective half shell 2 drives the movable annular plate 602 in the mounting sleeve 5 to move toward the cable head 11, thereby driving the arc-shaped heat conducting plate 605 to fit the outer wall of the cable head 11, and then the surface temperature of the cable head 11 is detected by the detection head 604 on the temperature detector 601, and the temperature detection data is transmitted to the information box 4, and then the information data is sent to the external information receiving device through the information box 4 to realize online detection of the surface temperature of the cable head 11.

[0032] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A cable head online temperature detector, comprising two outer protective half shells, characterized in that: The inner periphery of the outer protection half shell is connected to the inner periphery of the outer protection half shell, and the inner periphery of the inner protection half shell surrounds a cable head, and a number of extrusion detection components are provided on the inner protection half shell, and an information box is provided on the outer wall of the inner protection half shell, and a number of the extrusion detection components are connected to the information box circuit, and a pressure control cylinder is provided on the outer protection half shell, and one of the inner protection half shells is provided with an exhaust pipe, and the pressure control cylinder is used to extract the gas in the inner protection half shell into the outer protection half shell, and the extrusion detection component can move in the inner protection half shell and fit the outer wall of the cable head, and the extrusion detection component includes a temperature detector and a movable annular plate connected to the middle of the temperature detector, and the movable annular plate is trumpet-shaped, and the shape and size of the outer end wall of the movable annular plate are consistent with the shape and size of the inner wall of the mounting sleeve, and the outer end wall of the movable annular plate fits the inner wall of the mounting sleeve. The temperature detector is provided with a detection head near one end of the cable head, and a wiring head is provided at the other end of the temperature detector. A threaded rod is provided in the pressure control cylinder through a bearing sleeve, one end of the threaded rod extends to the outside of the pressure control cylinder and is connected to a turning handle, and the turning handle is placed outside the pressure control cylinder, and a threaded sleeve is matched with the threaded rod, and the threaded sleeve is connected to a piston plate, and the outer wall of the piston plate is fitted with the inner wall of the pressure control cylinder. A closing assembly is provided on the outer wall of the inner protective half shell where an exhaust pipe is provided, and an extrusion assembly is provided on the side of the pressure control cylinder, and the closing assembly includes a first fixed sleeve provided on the outer wall of the inner protective half shell and a movable rod provided in the first fixed sleeve, one end of the movable rod extends through the exhaust pipe into the inner protective half shell and is connected to a sealing plug, and the other end of the movable rod is connected to a pressure plate, and the extrusion assembly can squeeze the pressure plate to drive the sealing plug to seal the exhaust pipe.

2. A cable head online temperature detector according to claim 1, characterized in that: The detection head is connected to an arc-shaped heat-conducting plate, and the inner wall of the arc-shaped heat-conducting plate is in contact with the outer wall of the cable head.

3. The cable head online temperature detector according to claim 1, characterized in that: The inner protective half shell is provided with a mounting plate, the information box is mounted on the mounting plate, a main line is provided on the mounting plate, one end of the main line is connected to the information box, a plurality of secondary lines are connected to the main line, and the ends of the secondary lines are connected to corresponding terminal heads.

4. The cable head online temperature detector according to claim 1, characterized in that: A movable groove is provided on the side of the pressure control cylinder, and a second fixed sleeve is provided at a position corresponding to the movable groove on the inner wall of the pressure control cylinder. The extrusion assembly includes a straight rod arranged in the second fixed sleeve and a push plate connected to one end of the straight rod. An elastic member is sleeved on the straight rod, and both ends of the elastic member are respectively abutted against the push plate and the second fixed plate. One end of the push plate passes through the movable groove and extends outside the pressure control cylinder.

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