Clamping assembly and lightning arrester communication device

Abstract

The invention discloses a clamping assembly and a lightning arrester communication device, and the clamping assembly comprises arc-shaped hoops which are symmetrically and rotatably connected to the outer side wall of a box body, and elastic parts are connected between the arc-shaped hoops and the box body; the rotating mechanism is used for driving the arc-shaped hoop to rotate; the pressure sensor is used for detecting the pressure during clamping, and the control panel is used for receiving a control signal and controlling the rotating mechanism to be self-locked; the power supply assembly is used for supplying power. The two arc-shaped hoops are conveniently and manually pre-clamped and fixed to an electric pole through cooperation of the elastic pieces, the rotating mechanism which is not powered on does not have a self-locking function, and the two arc-shaped hoops can freely rotate forwards and backwards so that manual installation can be conveniently achieved; and after the later-stage power supply assembly is powered on, the electrically-driven rotating mechanism starts to work to drive the arc-shaped hoop to rotate so as to realize clamping, the clamping is stopped after a preset value of the pressure sensor is reached, the rotating mechanism is controlled to be self-locked, and the rotating mechanism is self-locked to prevent the lightning arrester communication device from sliding off the telegraph pole under the condition that the equipment loses a power supply.

Description

Technical Field

[0001] The invention relates to the technical field of lightning arresters, in particular to a clamping component and a lightning arrester communication device. Background Art

[0002] A lightning arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards and limit the follow-on time and amplitude. An important challenge facing the intelligentization of lightning arresters is the stability and reliability of communication.

[0003] The power line carrier signal of the arrester communication device is coupled to the ground wire on the arrester through the coupler port. The arrester communication device receives the carrier signal and sends it to another device through the network port.

[0004] A power source is required in this process, and the lightning arrester is usually installed on an outdoor overhead line through a clamping assembly. The equipment is powered by solar charging and discharging and an external power source.

[0005] The clamping components of existing lightning arresters are usually manually fixed in the form of a clamp, so electrically driven clamping components have begun to appear. Usually, the battery of the equipment that has just been taken on a business trip is out of power. In order to facilitate installation, the motor usually does not have a self-locking function, which is convenient for manual operation and then clamping by motor drive. However, when used outdoors, due to the lack of a stable power supply, batteries are usually used for power supply, and the battery power is limited. When the battery power is exhausted, the electrically driven clamping component lacks self-locking and is prone to loosening. Summary of the invention

[0006] The object of the present invention is to provide a clamping assembly and a lightning arrester communication device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A clamping assembly, comprising:

[0009] Arc-shaped clamps, two groups of which are symmetrically rotatably connected to the outer side wall of the box body, and an elastic member is connected between the arc-shaped clamps and the box body;

[0010] A rotating mechanism, the rotating mechanism is used to drive the arc-shaped clamp to rotate;

[0011] The pressure sensor is used to detect the pressure during clamping and send out a control signal when the detected pressure reaches a preset value;

[0012] A control panel, used for receiving control signals and controlling the self-locking of the rotating mechanism;

[0013] A power supply component, used for supplying power.

[0014] Preferably, friction teeth are provided on the side where the two groups of arc-shaped clamps are close to each other to increase friction.

[0015] Preferably, the rotating mechanism comprises a motor and a first tooth mounted at an output end of the motor;

[0016] A rotating shaft is provided at the rotating part of the arc-shaped clamp, and a driven tooth is provided on the outer wall of the rotating shaft, and the driven tooth is meshed with the first tooth;

[0017] The output end of the motor is connected to the first tooth through a worm, and also includes a worm wheel meshing with the worm, and the worm wheel is connected to the second tooth through an intermediate gear set;

[0018] The driven tooth is driven by the telescopic mechanism to move along the axis of the rotating shaft, so that the driven tooth is kept in mesh with one of the first tooth or the second tooth;

[0019] The telescopic mechanism is electrically matched with the pressure sensor.

[0020] Preferably, an inclined block is provided on the outer end face of the first tooth facing away from the worm, and an elastic inclined support is provided on the driven tooth along its radial extension; when the driven tooth and the second tooth are meshed, the inclined support abuts and cooperates with the outer end face of the first tooth.

[0021] A lightning arrester communication device comprises the above-mentioned clamping assembly, wherein the box body is provided with a network port and a coupler port which are electrically connected to a control panel.

[0022] Preferably, it also includes a display screen and an external power supply port electrically connected to the control panel.

[0023] Preferably, the power supply assembly includes a light collecting cylinder, a circuit board arranged on the light collecting cylinder, and a battery pack and a light receiving board electrically connected to the circuit board, characterized in that:

[0024] A condensing screen is arranged at the opening of the condensing tube, a power assembly for driving a light receiving plate to approach or move away from the condensing screen along the main optical axis of the condensing screen is arranged in the condensing tube, and a light sensor is arranged on the light receiving plate at a position corresponding to the main optical axis of the condensing screen;

[0025] The circuit board controls the power component to adjust the moving position of the light receiving plate according to the signal input by the light sensor.

[0026] Preferably, the power assembly includes a driving motor and a lifting shaft installed on the side wall of the light receiving plate, and the driving motor is connected to the lifting shaft to drive the lifting shaft to move linearly.

[0027] Preferably, a sealing ring is arranged between the outer edge of the condensing screen and the inner wall of the condensing tube; and an exhaust valve is installed on the side wall of the condensing tube.

[0028] Preferably, the condensing screen comprises a glass medium and a first lens and a secondary lens arranged in the glass medium, the first lens is arranged at the center of the condensing screen, a plurality of groups of secondary lenses are evenly distributed around the first lens, and the outer diameter of the first lens is greater than the outer diameter of the secondary lens;

[0029] The secondary lens includes a second lens and a third lens having different outer diameters, and the second lens and the third lens are alternately arranged.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The two arc-shaped clamps are conveniently pre-clamped and fixed on the pole manually through the cooperation of elastic parts. At this time, the rotating mechanism without power is not self-locking, and the two arc-shaped clamps can be rotated forward and reversed at will for easy manual installation;

[0032] After the power supply assembly is powered on, the electrically driven rotating mechanism starts to work and drives the arc clamp to rotate to achieve clamping. It stops after reaching the preset value of the pressure sensor, and controls the rotating mechanism to self-lock. In the event of a power loss to the device, the rotating mechanism self-locks to prevent the arrester communication device from slipping off the pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0034] Figure 1 It is a top view of the lightning arrester communication device of the present invention.

[0035] Figure 2 It is a schematic diagram of the rotating mechanism of the present invention.

[0036] Figure 3 It is a schematic diagram of the cooperation between the oblique support and the oblique block on the outer end face of the first tooth of the present invention.

[0037] Figure 4 It is a side sectional view of the power supply assembly of the present invention.

[0038] Figure 5 This is a top view of the power supply assembly of the present invention.

[0039] Figure 6 It is a side view of the lightning arrester communication device of the present invention.

[0040] 1. Condenser tube; 2. Battery pack; 3. Circuit board; 4. Condenser screen; 5. Sealing ring; 6. Baffle; 7. Exhaust valve; 8. Light receiving board; 81. Output interface board; 9. Lifting shaft; 10. Drive motor; 11. Power output port; 12. Bushing; 13. Light sensor;

[0041] 14. Box body; 15. Clamping assembly; 151. Arc clamp; 152. Rotating mechanism; 153. Pressure sensor; 154. Rotating shaft; 155. Driven gear; 1551. Diagonal brace; 156. Telescopic mechanism; 16. Display screen; 17. External power supply port; 18. Network port; 19. Coupler port;

[0042] 41. First lens; 42. Second lens; 43. Third lens; 44. Glass medium;

[0043] 1521, motor; 1522, worm; 1523, first tooth; 15231, bevel block; 1524, worm wheel; 1525, intermediate gear set; 1526, second tooth. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] A lightning arrester communication device, such as Figure 1 , 6 As shown:

[0046] It includes a box body 14 and a control panel, a clamping component 15, a display screen 16, an external power supply port 17, a network port 18, a coupler port 19, a carrier communication module and a power supply component arranged on the box body 14.

[0047] The box 14 is installed on the pole through the clamping assembly 15, and the system parameters are set and the data communication display and alarm indication are performed through the display screen 16.

[0048] The coupler port 19 is used to couple with the grounding wire of the lightning arrester, and the network port 18 is used to connect the carrier communication module with external equipment communication; thus, when the lightning arrester fails, the control board detects changes in the grounding wire of the lightning arrester, and the carrier communication module sends an alarm signal to the outside through the network port 18.

[0049] like Figure 1-2As shown, the clamping assembly 15 has two groups of symmetrically arranged arc clamps 151, one end of which is rotatably connected to the box body 14 through a rotating shaft 154. The elastic member can be a torsion spring, and the elastic force of the elastic member pushes the two groups of arc clamps 151 to approach each other. A rotating mechanism 152 is also installed on the box body 14, and the rotating mechanism 152 corresponds to the rotating shaft 154 one by one, and is used to control the rotation of the rotating shaft 154; a pressure sensor 153 is installed on the box body 14, and when the two groups of arc clamps 151 clamp the box body 14 on the pole, the clamping pressure is detected by the pressure sensor 153.

[0050] The rotating mechanism 152 includes a motor 1521 (without self-locking), a worm 1522 installed at the output end of the motor 1521, a first tooth 1523 coaxially installed at the end of the worm 1522, and a worm wheel 1524 meshing with the worm 1522. The worm wheel 1524 is connected to the second tooth 1526 through an intermediate gear set 1525. The first tooth 1523 and the second tooth 1526 have the same structure, and the axes of the first tooth 1523, the second tooth 1526, and the driven tooth 155 are parallel to each other; the first tooth 1523 and the second tooth 1526 have the same rotation speed.

[0051] A driven tooth 155 is provided on the outer side of the rotating shaft 154 and is slidably fitted along its axis. The rotating shaft 154 and the driven tooth 155 are relatively fixed in the circumferential direction. The telescopic mechanism 156 can adopt an electric push rod. A support is provided at the output end of the telescopic mechanism 156. The support and the driven tooth 155 are relatively rotatably fitted. The telescopic mechanism 156 drives the driven tooth 155 to move on the rotating shaft 154.

[0052] The intermediate gear set 1525 includes a first bevel gear and a second bevel gear meshing with each other, the first bevel gear and the worm gear 1524 are coaxially fixedly connected, and the second bevel gear and the second gear 1526 are coaxially fixedly connected. The intermediate gear set 1525 is an acceleration structure.

[0053] Working principle of clamping assembly 15:

[0054] When leaving the factory, Figure 2 As shown, the telescopic mechanism 156 is in a shortened state, at which time the driven tooth 155 is meshed with the first tooth 1523 . Since the motor 1521 is not self-locking, the arc-shaped clamp 151 can be driven by an external force to rotate forward and reverse.

[0055] The two arc-shaped clamps 151 are sleeved on the outer side wall of the pole. Under the action of the elastic member, the two arc-shaped clamps 151 tend to approach each other to pre-clamp and fix the box body 14 on the outer side wall of the pole.

[0056] Afterwards, when the power supply assembly is powered, the telescopic mechanism 156 can be controlled to extend through an external controller, so that the driven tooth 155 at the output end of the telescopic mechanism 156 moves to engage with the second tooth 1526, and the driven tooth 155 is separated from the first tooth 1523;

[0057] Then, the motor 1521 is controlled to rotate, and the rotation of the motor 1521 drives the worm wheel 1524 to rotate through the worm 1522. The rotation of the worm wheel 1524 drives the second tooth 1526 to rotate through the intermediate gear set 1525. The rotation of the second tooth 1526 drives the rotating shaft 154 to rotate through the driven tooth 155, thereby driving the arc clamp 151 to clamp.

[0058] When the arc clamp 151 is clamped on the outer wall of the pole, the pressure is detected in real time by the pressure sensor 153. A preset pressure value is built into the control panel. When the pressure sensor 153 detects that the real-time pressure reaches the preset pressure value, it is fed back to the control panel, and the control panel controls the motor 1521 to stop.

[0059] At this time, the cooperation between the worm 1522 and the worm wheel 1524 realizes self-locking, thereby preventing the arc-shaped clamp 151 from rotating due to external force.

[0060] The pressure sensor 153 is used to keep the clamping force of the clamping assembly 15 pressing the pole within a set range to avoid loosening due to the influence of the external environment.

[0061] When solar panels are generating electricity, voltage and current fluctuations caused by changes in light intensity can lead to unstable output power of solar cells, causing the battery pack to charge and discharge frequently, which not only increases the number of battery cycles, but may also affect the service life and performance of the battery pack.

[0062] When there is no sunlight at night, you can use roadside lamps as light sources, but the light intensity of such light sources is weak and the charging efficiency is low.

[0063] Power supply components, such as Figure 4-5 As shown:

[0064] The invention comprises a cylindrical focusing tube 1, which is made of flame-retardant and high-temperature-resistant ABS material; the focusing tube 1 is hollow inside and has an opening on one side, and a focusing screen 4 is arranged at the opening, and both sides of the focusing screen 4 are convex lenses.

[0065] A sealing ring 5 is provided between the outer edge of the condensing screen 4 and the inner wall of the condensing tube 1 to improve the sealing performance.

[0066] A battery pack 2, a circuit board 3, a driving motor 10, a baffle 6, a light receiving plate 8, a lifting shaft 9, a sleeve 12 and a light sensor 13 are installed inside the focusing tube 1. The battery pack 2, the driving motor 10, the light receiving plate 8 and the light sensor 13 are all electrically connected to the circuit board 3.

[0067] The light receiving plate 8 is used to receive natural light and light from street lamps.

[0068] The light sensor 13 is installed at the top center of the light receiving board 8. According to the light intensity, the light sensor 13 outputs different photoelectric signals to the CPU of the circuit board 3. The light sensor 13 is relatively located on the main optical axis path of the condensing screen 4.

[0069] The driving motor 10 can be an electric push rod or a sliding screw motor. The circuit board 3 outputs a pulse signal. The positive pulse drives the rotating shaft of the driving motor 10 to rise, and the negative pulse drives the rotating shaft of the driving motor 10 to fall.

[0070] The lifting shaft 9 is relatively installed on the rotating shaft of the driving motor 10 , and the lifting shaft 9 moves linearly relatively in the shaft sleeve 12 , and the moving direction of the lifting shaft 9 is consistent with the main optical axis direction of the condensing screen 4 .

[0071] The output interface board 81 is used to output the optical sensor 13 signal and the voltage and current signal to the circuit board 3 .

[0072] The circuit board 3 is used for automatic battery charging management, processing the photoelectric conversion signal output by the light sensor 13 , and outputting positive and negative pulse signals to the drive motor 10 .

[0073] An exhaust valve 7 is installed on the side wall of the focusing tube 1 to prevent the focusing screen 4 and the light sensor 13 from generating fog when used outdoors, thereby affecting the sensitivity of the light sensor 13.

[0074] The battery pack 2 is used for energy storage and for supplying power to various electrical components. The power output port 11 of the battery pack 2 is used for outputting voltage and current. The battery pack 2 can also be connected to the mains via the external power supply port 17.

[0075] Working principle of power supply components:

[0076] After receiving natural light waves or lights, they are focused to the light receiving plate 8 through the focusing screen 4. The light sensor 13 outputs a photoelectric signal to the CPU unit processor of the circuit board 3. When the light is very strong, the circuit board 3 outputs a positive pulse to control the shaft of the drive motor 10 to drive the light receiving plate 8 to rise, so that the focusing area increases and the charging current decreases;

[0077] When the light is weak, the circuit board 3 outputs a negative pulse to control the shaft of the driving motor 10 to drive the light receiving plate 8 down, so that the focusing area is reduced and the charging current is increased;

[0078] When the light is weak, the light receiving plate 8 can automatically adjust the focusing focal length of the light receiving plate 8 to maintain a constant output current to charge the battery pack 2;

[0079] The CPU memory unit of the circuit board 3 has an initial value of photoelectric conversion when it leaves the factory. This initial value is the reference value when the light receiving board receives the strongest light signal.

[0080] like Figure 5 As shown, the condenser screen 4 includes a first lens 41 and a second lens 42 and a third lens 43 in a circular array with the first lens 41 as the center, and the second lens 42 and the third lens 43 are arranged alternately, the outer diameter of the first lens 41 is larger, which is 2-4 times the outer diameter of the second lens 42, and the outer diameter of the second lens 42 is 1.5-3 times the outer diameter of the third lens 43; the periphery of the first lens 41, the second lens 42 and the third lens 43 is filled with a glass medium to form a lens with convex surfaces on both sides;

[0081] The first lens 41 is mainly used to gather large light beams, and the second lens 42 and the third lens 43 with two different outer diameters can gather light beams with smaller angles.

[0082] After the light passes through the condensing screen 4, the light intensity change is detected by the light sensor 13 to enhance the light intensity in a specific direction or a specific area. The condensing screen 4 can improve the detection sensitivity, which is particularly suitable for long distances or weak light conditions.

[0083] When the light intensity is too strong or too weak, the circuit board 3 controls the movement of the light receiving plate 8 according to the light changes detected by the light sensor 13. The light receiving plate 8 can charge the battery pack by automatically adjusting the focusing focal length of the light receiving plate 8 to maintain a constant output current.

[0084] In another embodiment, due to the use of solar power supply, there is a problem of unstable power supply voltage, which will affect the accuracy of the light sensor 13. If the detection value of the light sensor 13 changes greatly at a certain moment, there is a situation of looseness.

[0085] like Figure 2 , 3 As shown, a radially extending oblique support 1551 is provided on one side of the driven tooth 155. The oblique support 1551 is made of a material with a certain elastic deformation ability. The oblique support 1551 is a cantilever beam structure. An oblique block 15231 is provided on the outer end face of the first tooth 1523. The oblique block 15231 is provided with an inclined surface on one side. When the driven tooth 155 is meshed with the second tooth 1526, the free end of the oblique support 1551 just abuts against the outer end face of the first tooth 1523. In the process of the driven tooth 155 rotating to drive the arc-shaped clamp 151 to clamp, the free end of the oblique support 1551 can be deformed and cooperate with the inclined surface of the oblique block 15231 to pass over the oblique block 15231, without affecting normal use.

[0086] During the reversal of the motor 1521 , the free end of the diagonal support 1551 cannot cross the straight surface of the inclined block 15231 , thereby preventing the pressure sensor 153 from suddenly loosening when it fails.

[0087] It should be noted that the above design allows the motor 1521 to only rotate in the reverse direction at a small angle when the pressure sensor 153 suddenly fails, which will not cause the fully arc-shaped clamp 151 to be completely loosened, while allowing the arc-shaped clamp 151 to have a certain reverse adjustment space.

[0088] When it is necessary to release, the telescopic mechanism 156 is first controlled to shorten so that the driven teeth 155 are meshed with the first teeth 1523 , and at this time, the clamping or releasing can be controlled.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping assembly, characterized in that: include: Arc-shaped hoops (151), two groups of the arc-shaped hoops (151) are symmetrically rotatably connected to the outer side wall of the box body (14), and an elastic member is connected between the arc-shaped hoops (151) and the box body (14); A rotating mechanism (152), wherein the rotating mechanism (152) is used to drive the arc-shaped clamp (151) to rotate; A pressure sensor (153) is used to detect the pressure during clamping and send a control signal when the detected pressure reaches a preset value; A control panel, used for receiving a control signal and controlling the rotating mechanism (152) to self-lock; A power supply component, used for supplying power.

2. A clamping assembly according to claim 1, characterized in that: Friction teeth are arranged on the sides of the two groups of arc-shaped hoops (151) that are close to each other.

3. A clamping assembly according to claim 1, characterized in that: The rotating mechanism (152) comprises a motor (1521) and a first tooth (1523) installed at the output end of the motor (1521); A rotating shaft (154) is provided at the rotating part of the arc-shaped clamp (151), and a driven tooth (155) is provided on the outer wall of the rotating shaft (154), and the driven tooth (155) is meshed with the first tooth (1523); The output end of the motor (1521) is connected to the first tooth (1523) via the worm (1522), and further comprises a worm wheel (1524) meshing with the worm (1522), wherein the worm wheel (1524) is transmission-connected to the second tooth (1526) via an intermediate gear set (1525); The driven tooth (155) is driven by the telescopic mechanism (156) to move along the axis direction of the rotating shaft (154), so that the driven tooth (155) is kept in mesh with one of the first tooth (1523) or the second tooth (1526); The telescopic mechanism (156) is electrically coordinated with the pressure sensor (153).

4. A clamping assembly according to claim 3, characterized in that: The outer end surface of the first tooth (1523) facing away from the worm (1522) is provided with an inclined block (15231), and the driven tooth (155) is provided with an elastic inclined support (1551) extending along its radial direction; when the driven tooth (155) and the second tooth (1526) are meshed, the inclined support (1551) abuts against the outer end surface of the first tooth (1523).

5. A lightning arrester communication device, characterized in that: It comprises a clamping assembly as claimed in any one of claims 1 to 4, wherein the box body (14) is provided with a network port (18) and a coupler port (19) electrically connected to a control panel.

6. A lightning arrester communication device according to claim 5, characterized in that: It also includes a display screen (16) and an external power supply port (17) electrically connected to the control panel.

7. A lightning arrester communication device according to claim 5, wherein the power supply assembly comprises a light collecting tube (1), a circuit board (3) arranged on the light collecting tube (1), and a battery pack (2) and a light receiving board (8) electrically connected to the circuit board (3), characterized in that: A condensing screen (4) is arranged at the opening of the condensing tube (1), a power assembly for driving a light receiving plate (8) to move closer to or farther from the condensing screen (4) along the main optical axis of the condensing screen (4) is arranged in the condensing tube (1), and a light sensor (13) is arranged on the light receiving plate (8) at a position corresponding to the main optical axis of the condensing screen (4); The circuit board (3) controls the power component to adjust the moving position of the light receiving plate (8) according to the signal input by the light sensor (13).

8. The lightning arrester communication device according to claim 5, characterized in that: The power assembly comprises a driving motor (10) and a lifting shaft (9) mounted on the side wall of the light receiving plate (8); the driving motor (10) is connected to the lifting shaft (9) to drive the lifting shaft (9) to move linearly.

9. The lightning arrester communication device according to claim 5, characterized in that: A sealing ring (5) is arranged between the outer edge of the condensing screen (4) and the inner wall of the condensing tube (1); and an exhaust valve (7) is installed on the side wall of the condensing tube (1).

10. The lightning arrester communication device according to claim 5, characterized in that: The condensing screen (4) comprises a glass medium (44) and a first lens (41) and a secondary lens arranged in the glass medium (44); the first lens (41) is arranged at the center of the condensing screen (4); a plurality of groups of secondary lenses are evenly distributed around the first lens (41); and the outer diameter of the first lens (41) is greater than the outer diameter of the secondary lens; The secondary lens comprises a second lens (42) and a third lens (43) having different outer diameters, and the second lens (42) and the third lens (43) are arranged alternately.

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