Protective pressing plate with function of detecting electrification

Abstract

The present application relates to a kind of protective pressboard with the function of detecting charged, including left electrical connection device, right electrical connection device, connecting plate between left electrical connection device and right electrical connection device and electrical measuring device on connecting plate, the connecting plate is metal material.The present application is lower in time cost, and operation is relatively simple.

Description

Technical Field

[0001] This invention relates to a protective pressure plate with a live detection function. Background Technology

[0002] Due to the special nature of relay protection devices and other equipment, the protective pressure plate designed in the tripping circuit is an important guarantee for ensuring the safe operation of the relay protection system. As a disconnection point, the protective pressure plate makes it easy for operators to judge the tripping circuit of the relay protection device and whether the tripping coil of the switch (circuit breaker) can be connected, which greatly facilitates maintenance and operation. However, it also adds a disconnection point to the substation protection system that cannot be completely closed-loop.

[0003] In actual operation, whether the protection pressure plate is "truly" engaged or disengaged is an easily overlooked hidden danger. For example, for protection devices that have been in operation for a long time, although the protection pressure plate may appear to be disengaged, there may be spider webs, wires, or other contaminants connecting it to the back, indicating that the protection pressure plate has not actually been disengaged. In addition, some protection pressure plates may have poor contact, so although they appear to be engaged, they are not actually engaged.

[0004] Existing document CN205622076U describes a power relay protection cabinet equipped with a protection plate activation / deactivation indicator frame, comprising a power relay protection cabinet and a protection plate activation / deactivation indicator frame. The protection plates are installed inside the cabinet. The main magnetic structure of the protection plate activation / deactivation indicator frame is fixed to the bottom surface by embedding a T-shaped groove into a T-shaped protrusion. A secondary magnetic structure is magnetically connected to the main magnetic structure through the front cabinet door. A transparent protective clip is installed on the bottom plate. Protection plate activation / deactivation instruction cards and protection plate activation / deactivation indicator cards are placed in matching transparent protective clips. The upper edge of the protection plate activation / deactivation indicator card has 1 to 3 conical three-dimensional protrusions. The protection plate activation / deactivation indicator card corresponds to the distribution of each protection plate inside the power relay protection cabinet. The protection plate activation / deactivation indicator frame displays the correct protection plate status. Operators will verify whether the status of each protection plate on the relay protection device matches that on the protection plate activation / deactivation indicator frame to ensure that each protection plate is in the correct activation or deactivation state.

[0005] Existing document CN204481385U describes a power relay protection cabinet with a protection plate activation / deactivation diagram frame, comprising a power relay protection cabinet and a protection plate activation / deactivation diagram frame. The protection plate activation / deactivation diagram frame is fixedly installed on the front door of the power relay protection cabinet. The diagram frame includes a bottom panel, a sliding strip, and a protection plate status indicator block. The bottom panel corresponds to the overall distribution of the protection plates, the sliding strip corresponds to the distribution of each row of protection plates, and the protection plate status indicator block corresponds to the distribution of each protection plate inside the power relay protection cabinet. The diagram frame displays the correct protection plate status. Operators will verify whether the status of each protection plate on the relay protection device is consistent with that on the diagram frame to ensure that each protection plate is in the correct activation or deactivation state.

[0006] Both of these methods involve manually testing the protective pressure plate for liveness, and then displaying the status of the protective pressure plate using a schematic panel. The operation is relatively complex and time-consuming. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a protective pressure plate with a live detection function that has a low time cost.

[0008] The present invention adopts the following technical solution:

[0009] The present invention includes a left power connection device, a right power connection device, a connecting plate disposed between the left power connection device and the right power connection device, and a measuring device disposed on the connecting plate, wherein the connecting plate is made of metal.

[0010] The left power connection device of the present invention includes a first T-shaped block, a first connecting post whose lower end is embedded in the upper end of the first T-shaped block, and a second connecting post whose upper end is embedded in the lower end of the first T-shaped block. The first connecting post and the second connecting post are connected to each other. The right power connection device is located on the right side of the first T-shaped block. The connecting plate is disposed on the first connecting post. Both the first connecting post and the second connecting post are made of metal.

[0011] The right-side power connection device of the present invention includes a second T-shaped block located to the right of the first T-shaped block, a third connecting post whose lower end is embedded in the upper end of the second T-shaped block, and a fourth connecting post whose upper end is embedded in the lower end of the second T-shaped block. The third connecting post and the fourth connecting post are connected. One end of the connecting plate is sleeved on the third connecting post, and the other end of the connecting plate is provided with a slot on the side of the first connecting post facing upward. The first connecting post is engaged in the slot. The measuring device is disposed between the first T-shaped block and the second T-shaped block. Both the third connecting post and the fourth connecting post are made of metal.

[0012] The left-side electrical device of the present invention further includes a first nut, the upper end of the first connecting post is provided with a thread, the first nut is provided with a first threaded hole with the opening facing downward, the upper end of the first connecting post is screwed into the first threaded hole, and the left end of the connecting plate is located between the first nut and the first T-shaped block.

[0013] The right-side electrical device of the present invention further includes a second nut, the upper end of the third connecting post is provided with a thread, the second nut is provided with a second threaded hole with the opening facing downward, the upper end of the third connecting post is screwed into the second threaded hole, and the right end of the connecting plate is located between the second nut and the second T-block.

[0014] A fixing plate is fixedly disposed between the first T-shaped block and the second T-shaped block of the present invention, and the length of the fixing plate is adapted to the length of the connecting plate.

[0015] The measuring device of the present invention includes a slider with a through hole, a swing block fixedly disposed on the upper surface of the slider, and an ammeter fixedly disposed on the upper surface of the swing block. The connecting plate is sleeved in the through hole, and the slider and the swing block are made of insulating material.

[0016] The slider is provided with a first guide groove with an opening facing downwards. The lower end of the first guide groove is connected to a through hole. A first spring is provided in the first guide groove. The upper end of the first spring is fixedly connected to the top end of the first guide groove. A first connecting ball is fixedly connected to the lower end of the first spring. The bottom end of the first connecting ball is in contact with a connecting plate. One end of the ammeter is connected to the first connecting ball through a wire.

[0017] The slider is also provided with a second guide groove that opens downward and is located to the right of the first guide groove. The lower end of the second guide groove is connected to the through hole. A second spring is provided in the second guide groove. The upper end of the second spring is fixedly connected to the top end of the second guide groove. A second connecting ball is fixedly connected to the lower end of the second spring. The bottom end of the second connecting ball is in contact with the connecting plate. The other end of the ammeter is connected to the second connecting ball through a wire.

[0018] The measuring device of the present invention further includes an electronic tag installed on the ammeter, a controller connected to the ammeter signal, and a display connected to the controller signal. The controller is used to receive the current signal collected by the ammeter. When the controller receives the current signal collected by the ammeter, the controller controls the display to show that the connection plate is in a powered state and displays the current value; when the controller does not receive the current signal from the ammeter, the controller controls the display to show that the connection plate is in a disconnected state.

[0019] In this invention, the upper end of the first connecting ball is located within the first guide groove.

[0020] The upper end of the second connecting ball of the present invention is located in the second guide groove.

[0021] The positive effects of this invention are as follows:

[0022] When the protective pressure plate needs to be connected, rotate the connecting plate to engage the first connecting post in the slot. At this time, the ammeter detects the current between the first and second connecting balls on the connecting plate. Because there is a certain resistance between the first and second connecting balls on the connecting plate, and the internal resistance of the ammeter is low, it can be assumed that the connecting plate does not short-circuit the ammeter, and current flows through the ammeter. Therefore, the ammeter can collect a current signal. If the ammeter shows a current reading, it indicates that current is flowing through the connecting plate, proving that the protective pressure plate is in use. In addition, because the distance between the first and second connecting balls is fixed, the current readings on the display and ammeter can be used to confirm whether there is a problem of poor contact causing an increase in circuit resistance.

[0023] When the protective pressure plate needs to be disconnected, simply rotate the connecting plate to disengage the slot from the first connecting post. Observe that the current displayed on the monitor and ammeter is zero; this indicates that no current is flowing through the connecting plate, and the protective pressure plate is disconnected.

[0024] The controller can display the current magnitude of the ammeter on the display screen according to the different electronic tags, which is especially convenient and intuitive for observation and monitoring when multiple protection pressure plates are working at the same time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram showing the positions of the first nut and the second nut of the present invention;

[0027] Figure 3 This is a schematic diagram showing the disconnection of the connecting plate of the present invention;

[0028] Figure 4 This is a schematic diagram showing the position of the first connecting ball in this invention;

[0029] Figure 5 This is a schematic diagram showing the relative positions of the connecting plate and the through hole in this invention.

[0030] In the attached drawings: 1. Connecting plate; 2. First connecting post; 3. Second connecting post; 4. Second T-block; 5. Third connecting post; 6. Fourth connecting post; 7. Slot; 8. First nut; 9. First threaded hole; 10. Second nut; 11. Second threaded hole; 12. Fixing plate; 13. Through hole; 14. Slider; 15. Swing block; 16. Ammeter; 17. First guide groove; 18. First spring; 19. First connecting ball; 20. Second guide groove; 21. Second spring; 22. Second connecting ball; 23. First T-block. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0035] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0037] Example 1

[0038] As attached Figure 1 As shown in Figure 5, the present invention includes a left power connection device, a right power connection device, a connecting plate 1 disposed between the left power connection device and the right power connection device, and a measuring device disposed on the connecting plate 1, wherein the connecting plate 1 is made of metal.

[0039] The left power connection device includes a first T-shaped block 23, a first connecting post 2 whose lower end is embedded in the upper end of the first T-shaped block 23, and a second connecting post 3 whose upper end is embedded in the lower end of the first T-shaped block 23. The first connecting post 2 and the second connecting post 3 are connected to each other. The right power connection device is located on the right side of the first T-shaped block 23. The connecting plate 1 is disposed on the first connecting post 2. Both the first connecting post 2 and the second connecting post 3 are made of metal.

[0040] The right-side power connection device includes a second T-shaped block 4 located to the right of the first T-shaped block 23, a third connecting post 5 with its lower end embedded in the upper end of the second T-shaped block 4, and a fourth connecting post 6 with its upper end embedded in the lower end of the second T-shaped block 4. The third connecting post 5 and the fourth connecting post 6 are connected together. One end of the connecting plate 1 is sleeved on the third connecting post 5, and the other end of the connecting plate 1 is provided with a slot 7 on the side of the first connecting post 2 facing upward. The first connecting post 2 is engaged in the slot 7. The measuring device is located between the first T-shaped block 23 and the second T-shaped block 4. Both the third connecting post 5 and the fourth connecting post 6 are made of metal.

[0041] The left-side electrical connection device also includes a first nut 8, the upper end of the first connecting post 2 is provided with threads, the first nut 8 is provided with a first threaded hole 9 with the opening facing downwards, the upper end of the first connecting post 2 is screwed into the first threaded hole 9, and the left end of the connecting plate 1 is located between the first nut 8 and the first T-shaped block 23.

[0042] The right-side electrical connection device also includes a second nut 10. The upper end of the third connecting post 5 is provided with threads. The second nut 10 is provided with a second threaded hole 11 with the opening facing downward. The upper end of the third connecting post 5 is screwed into the second threaded hole 11. The right end of the connecting plate 1 is located between the second nut 10 and the second T-shaped block 4.

[0043] A fixing plate 12 is fixedly disposed between the first T-shaped block 23 and the second T-shaped block 4, and the length of the fixing plate 12 is adapted to the length of the connecting plate 1.

[0044] The measuring device includes a slider 14 with a through hole 13, a swing block 15 fixedly mounted on the upper surface of the slider 14, and an ammeter 16 fixedly mounted on the upper surface of the swing block 15. The connecting plate 1 is sleeved in the through hole 13. The slider 14 and the swing block 15 are made of insulating material.

[0045] The slider 14 is provided with a first guide groove 17 with an opening facing downward. The lower end of the first guide groove 17 is connected to the through hole 13. A first spring 18 is provided in the first guide groove 17. The upper end of the first spring 18 is fixedly connected to the top end of the first guide groove 17. A first connecting ball 19 is fixedly connected to the lower end of the first spring 18. The bottom end of the first connecting ball 19 is in contact with the connecting plate 1. One end of the ammeter 16 is connected to the first connecting ball 19 through a wire.

[0046] The slider 14 is also provided with a second guide groove 20 with the opening facing downward and located to the right of the first guide groove 17. The lower end of the second guide groove 20 is connected to the through hole 13. A second spring 21 is provided in the second guide groove 20. The upper end of the second spring 21 is fixedly connected to the top end of the second guide groove 20. A second connecting ball 22 is fixedly connected to the lower end of the second spring 21. The bottom end of the second connecting ball 22 is in contact with the connecting plate 1. The other end of the ammeter 16 is connected to the second connecting ball 22 through a wire.

[0047] The measuring device also includes an electronic tag installed on the ammeter 16, a controller connected to the ammeter 16, and a display connected to the controller. The controller is used to receive the current signal collected by the ammeter 16. When the controller receives the current signal collected by the ammeter 16, the controller controls the display to show that the connection plate 1 is in a powered state and displays the current value. When the controller does not receive the current signal from the ammeter 16, the controller controls the display to show that the connection plate 1 is in a disconnected state.

[0048] Example 2

[0049] As attached Figure 1 As shown in Figure 5, this is based on Example 1.

[0050] Similar to Example 1:

[0051] The present invention includes a left power connection device, a right power connection device, a connecting plate 1 disposed between the left power connection device and the right power connection device, and a measuring device disposed on the connecting plate 1, wherein the connecting plate 1 is made of metal.

[0052] The left power connection device includes a first T-shaped block 23, a first connecting post 2 whose lower end is embedded in the upper end of the first T-shaped block 23, and a second connecting post 3 whose upper end is embedded in the lower end of the first T-shaped block 23. The first connecting post 2 and the second connecting post 3 are connected to each other. The right power connection device is located on the right side of the first T-shaped block 23. The connecting plate 1 is disposed on the first connecting post 2. Both the first connecting post 2 and the second connecting post 3 are made of metal.

[0053] The right-side power connection device includes a second T-shaped block 4 located to the right of the first T-shaped block 23, a third connecting post 5 with its lower end embedded in the upper end of the second T-shaped block 4, and a fourth connecting post 6 with its upper end embedded in the lower end of the second T-shaped block 4. The third connecting post 5 and the fourth connecting post 6 are connected together. One end of the connecting plate 1 is sleeved on the third connecting post 5, and the other end of the connecting plate 1 is provided with a slot 7 on the side of the first connecting post 2 facing upward. The first connecting post 2 is engaged in the slot 7. The measuring device is located between the first T-shaped block 23 and the second T-shaped block 4. Both the third connecting post 5 and the fourth connecting post 6 are made of metal.

[0054] The left-side electrical connection device also includes a first nut 8, the upper end of the first connecting post 2 is provided with threads, the first nut 8 is provided with a first threaded hole 9 with the opening facing downwards, the upper end of the first connecting post 2 is screwed into the first threaded hole 9, and the left end of the connecting plate 1 is located between the first nut 8 and the first T-shaped block 23.

[0055] The right-side electrical connection device also includes a second nut 10. The upper end of the third connecting post 5 is provided with threads. The second nut 10 is provided with a second threaded hole 11 with the opening facing downward. The upper end of the third connecting post 5 is screwed into the second threaded hole 11. The right end of the connecting plate 1 is located between the second nut 10 and the second T-shaped block 4.

[0056] A fixing plate 12 is fixedly disposed between the first T-shaped block 23 and the second T-shaped block 4, and the length of the fixing plate 12 is adapted to the length of the connecting plate 1.

[0057] The measuring device includes a slider 14 with a through hole 13, a swing block 15 fixedly mounted on the upper surface of the slider 14, and an ammeter 16 fixedly mounted on the upper surface of the swing block 15. The connecting plate 1 is sleeved in the through hole 13. The slider 14 and the swing block 15 are made of insulating material.

[0058] The slider 14 is provided with a first guide groove 17 with an opening facing downward. The lower end of the first guide groove 17 is connected to the through hole 13. A first spring 18 is provided in the first guide groove 17. The upper end of the first spring 18 is fixedly connected to the top end of the first guide groove 17. A first connecting ball 19 is fixedly connected to the lower end of the first spring 18. The bottom end of the first connecting ball 19 is in contact with the connecting plate 1. One end of the ammeter 16 is connected to the first connecting ball 19 through a wire.

[0059] The slider 14 is also provided with a second guide groove 20 with the opening facing downward and located to the right of the first guide groove 17. The lower end of the second guide groove 20 is connected to the through hole 13. A second spring 21 is provided in the second guide groove 20. The upper end of the second spring 21 is fixedly connected to the top end of the second guide groove 20. A second connecting ball 22 is fixedly connected to the lower end of the second spring 21. The bottom end of the second connecting ball 22 is in contact with the connecting plate 1. The other end of the ammeter 16 is connected to the second connecting ball 22 through a wire.

[0060] The measuring device also includes an electronic tag installed on the ammeter 16, a controller connected to the ammeter 16, and a display connected to the controller. The controller is used to receive the current signal collected by the ammeter 16. When the controller receives the current signal collected by the ammeter 16, the controller controls the display to show that the connection plate 1 is in a powered state and displays the current value. When the controller does not receive the current signal from the ammeter 16, the controller controls the display to show that the connection plate 1 is in a disconnected state.

[0061] The difference is:

[0062] The upper end of the first connecting ball 19 is located within the first guide groove 17.

[0063] Example 3

[0064] As attached Figure 1 As shown in Figure 5, this is based on Example 2.

[0065] The same as in Example 2 is that:

[0066] The present invention includes a left power connection device, a right power connection device, a connecting plate 1 disposed between the left power connection device and the right power connection device, and a measuring device disposed on the connecting plate 1, wherein the connecting plate 1 is made of metal.

[0067] The left power connection device includes a first T-shaped block 23, a first connecting post 2 whose lower end is embedded in the upper end of the first T-shaped block 23, and a second connecting post 3 whose upper end is embedded in the lower end of the first T-shaped block 23. The first connecting post 2 and the second connecting post 3 are connected to each other. The right power connection device is located on the right side of the first T-shaped block 23. The connecting plate 1 is disposed on the first connecting post 2. Both the first connecting post 2 and the second connecting post 3 are made of metal.

[0068] The right-side power connection device includes a second T-shaped block 4 located to the right of the first T-shaped block 23, a third connecting post 5 with its lower end embedded in the upper end of the second T-shaped block 4, and a fourth connecting post 6 with its upper end embedded in the lower end of the second T-shaped block 4. The third connecting post 5 and the fourth connecting post 6 are connected together. One end of the connecting plate 1 is sleeved on the third connecting post 5, and the other end of the connecting plate 1 is provided with a slot 7 on the side of the first connecting post 2 facing upward. The first connecting post 2 is engaged in the slot 7. The measuring device is located between the first T-shaped block 23 and the second T-shaped block 4. Both the third connecting post 5 and the fourth connecting post 6 are made of metal.

[0069] The left-side electrical connection device also includes a first nut 8, the upper end of the first connecting post 2 is provided with threads, the first nut 8 is provided with a first threaded hole 9 with the opening facing downwards, the upper end of the first connecting post 2 is screwed into the first threaded hole 9, and the left end of the connecting plate 1 is located between the first nut 8 and the first T-shaped block 23.

[0070] The right-side electrical connection device also includes a second nut 10. The upper end of the third connecting post 5 is provided with threads. The second nut 10 is provided with a second threaded hole 11 with the opening facing downward. The upper end of the third connecting post 5 is screwed into the second threaded hole 11. The right end of the connecting plate 1 is located between the second nut 10 and the second T-shaped block 4.

[0071] A fixing plate 12 is fixedly disposed between the first T-shaped block 23 and the second T-shaped block 4, and the length of the fixing plate 12 is adapted to the length of the connecting plate 1.

[0072] The measuring device includes a slider 14 with a through hole 13, a swing block 15 fixedly mounted on the upper surface of the slider 14, and an ammeter 16 fixedly mounted on the upper surface of the swing block 15. The connecting plate 1 is sleeved in the through hole 13. The slider 14 and the swing block 15 are made of insulating material.

[0073] The slider 14 is provided with a first guide groove 17 with an opening facing downward. The lower end of the first guide groove 17 is connected to the through hole 13. A first spring 18 is provided in the first guide groove 17. The upper end of the first spring 18 is fixedly connected to the top end of the first guide groove 17. A first connecting ball 19 is fixedly connected to the lower end of the first spring 18. The bottom end of the first connecting ball 19 is in contact with the connecting plate 1. One end of the ammeter 16 is connected to the first connecting ball 19 through a wire.

[0074] The slider 14 is also provided with a second guide groove 20 with the opening facing downward and located to the right of the first guide groove 17. The lower end of the second guide groove 20 is connected to the through hole 13. A second spring 21 is provided in the second guide groove 20. The upper end of the second spring 21 is fixedly connected to the top end of the second guide groove 20. A second connecting ball 22 is fixedly connected to the lower end of the second spring 21. The bottom end of the second connecting ball 22 is in contact with the connecting plate 1. The other end of the ammeter 16 is connected to the second connecting ball 22 through a wire.

[0075] The measuring device also includes an electronic tag installed on the ammeter 16, a controller connected to the ammeter 16, and a display connected to the controller. The controller is used to receive the current signal collected by the ammeter 16. When the controller receives the current signal collected by the ammeter 16, the controller controls the display to show that the connection plate 1 is in a powered state and displays the current value. When the controller does not receive the current signal from the ammeter 16, the controller controls the display to show that the connection plate 1 is in a disconnected state.

[0076] The upper end of the first connecting ball 19 is located within the first guide groove 17.

[0077] The difference is:

[0078] The upper end of the second connecting ball 22 is located inside the second guide groove 20.

[0079] Working Principle: Based on Embodiments 1, 2, and 3, when the protective pressure plate needs to be connected, the connecting plate 1 is rotated so that the first connecting post 2 is engaged in the slot 7. At this time, the ammeter 16 detects the current between the first connecting ball 19 and the second connecting ball 22 on the connecting plate 1. Since there is a certain resistance between the first connecting ball 19 and the second connecting ball 22 on the connecting plate 1, and the internal resistance of the ammeter 16 is low, it can be considered that the connecting plate 1 cannot short-circuit the ammeter 16. Current flows through the ammeter 16, so the ammeter 16 can collect the current signal. If the ammeter 16 shows a current, it indicates that current is flowing through the connecting plate 1, which proves that the protective pressure plate is in use. In addition, since the distance between the first connecting ball 19 and the second connecting ball 22 is fixed, the current magnitude displayed on the display and the ammeter 16 can be used to confirm whether there is a problem of poor contact causing an increase in the circuit resistance.

[0080] When it is necessary to disconnect the protective pressure plate, simply rotate the connecting plate 1 to disengage the slot 7 from the first connecting post 2. Observe that the display and ammeter 16 show zero current, then it is considered that no current flows through the connecting plate 1, and the protective pressure plate is disconnected.

[0081] The controller can display the current of ammeter 16 on the display screen according to the different electronic tags, which can be conveniently and intuitively observed and monitored, especially when multiple protection pressure plates are working at the same time.

[0082] Currently, the technical solution of this application has undergone pilot testing, which is a small-scale experiment before the product is mass-produced. After the pilot testing was completed, a user survey was conducted on a small scale, and the survey results showed that user satisfaction was high. Now, preparations are underway for the formal production and industrialization of the product (including intellectual property risk warning surveys).

[0083] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A protective pressure plate with a live detection function, characterized in that: The utility model relates to a left electricity connecting device, a right electricity connecting device, a connecting plate (1) arranged between the left electricity connecting device and the right electricity connecting device and an electricity measuring device arranged on the connecting plate (1), and the connecting plate (1) is made of metal; The left electricity connecting device comprises a first T-shaped block (23), a first connecting column (2) embedded in the upper end of the first T-shaped block (23) and a second connecting column (3) embedded in the lower end of the first T-shaped block (23), the first connecting column (2) and the second connecting column (3) are connected, the right electricity connecting device is located on the right side of the first T-shaped block (23), the connecting plate (1) is arranged on the first connecting column (2), and the first connecting column (2) and the second connecting column (3) are both made of metal; The right electricity connecting device comprises a second T-shaped block (4) located on the right side of the first T-shaped block (23), a third connecting column (5) embedded in the upper end of the second T-shaped block (4) and a fourth connecting column (6) embedded in the lower end of the second T-shaped block (4), the third connecting column (5) and the fourth connecting column (6) are connected, one end of the connecting plate (1) is sleeved on the third connecting column (5), the other end of the connecting plate (1) is provided with a clamping groove (7) on one side of the first connecting column (2) in a upward manner, the first connecting column (2) is clamped in the clamping groove (7), the electricity measuring device is arranged between the first T-shaped block (23) and the second T-shaped block (4), and the third connecting column (5) and the fourth connecting column (6) are both made of metal; The electricity measuring device comprises a sliding block (14) provided with a through hole (13), a swing block (15) fixedly arranged on the upper surface of the sliding block (14), and an ammeter (16) fixedly arranged on the upper surface of the swing block (15), the connecting plate (1) is sleeved in the through hole (13), and the sliding block (14) and the swing block (15) are made of insulating materials; the sliding block (14) is provided with a first guide groove (17) with an opening downward, the lower end of the first guide groove (17) is communicated with the through hole (13), a first spring (18) is arranged in the first guide groove (17), the upper end of the first spring (18) is fixedly connected with the top end of the first guide groove (17), the lower end of the first spring (18) is fixedly connected with a first connecting ball (19), the bottom end of the first connecting ball (19) is in contact with the connecting plate (1), and one end of the ammeter (16) is connected with the first connecting ball (19) through a wire; the sliding block (14) is further provided with a second guide groove (20) with an opening downward and located on the right side of the first guide groove (17), the lower end of the second guide groove (20) is communicated with the through hole (13), a second spring (21) is arranged in the second guide groove (20), the upper end of the second spring (21) is fixedly connected with the top end of the second guide groove (20), the lower end of the second spring (21) is fixedly connected with a second connecting ball (22), the bottom end of the second connecting ball (22) is in contact with the connecting plate (1), and the other end of the ammeter (16) is connected with the second connecting ball (22) through a wire.

2. The protective pressboard with a function of detecting electric charge according to claim 1, characterized in that: The left electricity connecting device further comprises a first nut (8), the upper end of the first connecting column (2) is provided with a thread, the first nut (8) is provided with a first threaded hole (9) with an opening downward, the upper end of the first connecting column (2) is screwed in the first threaded hole (9), and the left end of the connecting plate (1) is located between the first nut (8) and the first T-shaped block (23).

3. The protective pressboard with a function of detecting electric charge according to claim 2, characterized in that: The right electricity connecting device further comprises a second nut (10), the upper end of the third connecting column (5) is provided with a thread, the second nut (10) is provided with a second threaded hole (11) with an opening downward, the upper end of the third connecting column (5) is screwed in the second threaded hole (11), and the right end of the connecting plate (1) is located between the second nut (10) and the second T-shaped block (4).

4. The protective pressboard with a function of detecting electric charge according to claim 3, characterized in that: The first T-shaped block (23) and the second T-shaped block (4) are fixedly provided with a fixed plate (12), and the length of the fixed plate (12) is matched with the length of the connecting plate (1).

5. The protective pressboard with the function of detecting electric charge according to claim 4, characterized in that: The electricity measuring device further comprises an electronic tag arranged on the ammeter (16), a controller connected with the ammeter (16) in signal mode, and a display connected with the controller in signal mode, the controller is used for receiving the current signal collected by the ammeter (16), when the controller receives the current signal collected by the ammeter (16), the controller controls the display to display that the connecting plate (1) is in the power-on state and display the current value; when the controller does not receive the current signal of the ammeter (16), the controller controls the display to display that the connecting plate (1) is in the power-off state.

6. The protective pressboard with a function of detecting electric charge according to claim 5, wherein: The upper end of the first connecting ball (19) is located in the first guide groove (17).

7. The protective pressboard with a function of detecting electric charge according to claim 6, characterized in that: The upper end of the second connecting ball (22) is located in the second guide groove (20).

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