Electric pressure plate

Abstract

The present invention provides an electric pressure plate, comprising a housing, a pressure plate body, a drive module, an electrical test module, and a circuit control board. During the rotation of the upper terminal, the first electrical test block is driven to move axially along the upper terminal to contact or separate from the first electrode sheet. During the rotation of the lower terminal, the second electrical test block is driven to move axially along the lower terminal to contact or separate from the second electrode sheet. When the first electrical test block is in contact with the first electrode sheet, the circuit control board measures the voltage of the upper terminal to ground. When the second electrical test block is in contact with the second electrode sheet, the circuit control board measures the voltage of the lower terminal to ground. This solution allows the pressure plate body to be deployed and retracted while also having an electrical test function. This allows the voltage of the upper and lower ends of the pressure plate body to be detected before the pressure plate body is deployed, thereby ensuring personal safety and reducing grid tripping accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to an electric pressure plate. Background Art

[0002] In power systems, a pressure plate is a mechanical or electrical component used to switch protection functions within a relay protection device. The pressure plate typically has multiple switching contacts that can be switched manually by an operator or through an automatic control system. The pressure plate's primary function is to control the relay protection device during operation, maintenance, or troubleshooting, ensuring the safe and stable operation of the power system.

[0003] Switching on and off is a common term in power systems, which refers to the operation of putting equipment or protection functions into operation or out of operation. Specifically:

[0004] 1. Start-up: This involves connecting a device or protective function to the power system and enabling it to begin normal operation. For example, this involves putting a transmission line into operation or enabling the function of a relay protection device to be put into operation.

[0005] 2. Decommissioning: This refers to disconnecting a device or protective function from the power system, stopping its normal operation. For example, decommissioning a transmission line or decommissioning a relay protection device from the system.

[0006] Switching on and off is typically performed to ensure safe, stable, and economical operation of the power system, as well as to perform equipment maintenance and troubleshooting. In practice, operators must perform switching on and off based on the actual operating conditions of the power system and dispatch instructions.

[0007] In smart substations, the power pressure plate is a relatively important equipment. Each substation has operating specifications. Before the power pressure plate is put into operation or withdrawn, it is necessary to measure whether the voltage of the upper and lower terminals of the power pressure plate to the ground is normal. Only when it is normal can the operation be carried out. Otherwise, it may cause a power grid tripping accident.

[0008] Currently, voltage measurement of electric pressure plates requires manual use of external detection equipment, which is a cumbersome operation. Summary of the Invention

[0009] The present invention provides an electric pressure plate, which can realize automatic electricity testing operation while performing the operation of putting the electric pressure plate in and out, thereby reducing the difficulty of operation.

[0010] In order to achieve the above object, the present invention provides an electric pressure plate, comprising:

[0011] a housing; a pressing plate body, the pressing plate body comprising a handle and upper and lower binding posts arranged side by side, the handle being connected to one end of the lower binding post, the upper and lower binding posts being inserted into the housing;

[0012] A driving module is provided in the housing, and the driving module drives the upper connecting post and the lower connecting post to rotate forward or reverse, so as to move the pressing plate body into or out of the housing;

[0013] An electrical test module is provided in the housing, and includes two electrode sheets and two electrical test blocks, wherein the two electrical test blocks are respectively provided on the upper terminal and the lower terminal;

[0014] A circuit control board, the circuit control board is electrically connected to the driving module to control the operation of the driving module, the upper terminal, the lower terminal, and the two electrode sheets are electrically connected to the circuit control board through wires;

[0015] In which, during the rotation of the upper terminal, the first test block is driven to move along the axial direction of the upper terminal to contact or separate from the first electrode sheet, and during the rotation of the lower terminal, the second test block is driven to move along the axial direction of the lower terminal to contact or separate from the second electrode sheet; when the first test block is in contact with the first electrode sheet, the circuit control board measures the voltage of the upper terminal to the ground, and when the second test block is in contact with the second electrode sheet, the circuit control board measures the voltage of the lower terminal to the ground.

[0016] Furthermore, the electrical test block includes a movable block and a trigger block connected to each other, the movable block has a threaded hole, and the movable block is threadedly connected to the upper terminal or the lower terminal; when the upper terminal or the lower terminal rotates, the corresponding movable block and the trigger block are driven to move by the thread, and the trigger block contacts or separates from the corresponding electrode sheet.

[0017] Furthermore, the trigger block has a guide hole, and the housing is provided with a guide column, the guide column passes through the guide hole, and the guide column is parallel to the upper terminal.

[0018] Furthermore, the two electrode sheets are located between the two electrical testing blocks. The electrode sheets are elastic metal plates. The electrode sheets have arc-shaped protrusions, which are in contact with the trigger blocks. The two trigger blocks contact the corresponding electrode plates in sequence to test the electricity respectively.

[0019] Furthermore, the driving module includes a motor and a gear set, the gear set is connected to both the upper terminal and the lower terminal, and the motor drives the upper terminal and the lower terminal to rotate through the gear set.

[0020] Furthermore, the gear set includes a first gear, a second gear, a third gear, a fourth gear and a fifth gear, wherein the motor is drivingly connected to the third gear, the third gear is meshed with the second gear and the fifth gear, the second gear is meshed with the first gear, the first gear is connected to the upper terminal, the fifth gear is meshed with the fourth gear, and the fourth gear is connected to the lower terminal.

[0021] Further, the transmission ratio between the third gear and the first gear is not equal to the transmission ratio between the third gear and the fourth gear.

[0022] Furthermore, the driving module also includes a signal wheel, which rotates with the gear set. A photoelectric switch is provided on the circuit control board. The signal wheel cooperates with the photoelectric switch to control the start or stop of the motor through the photoelectric switch.

[0023] Furthermore, the signal wheel has a plurality of blocking blocks distributed along the circumference. When the blocking blocks correspond to the photoelectric switches, the photoelectric switches control the motor to stop. When the blocking blocks avoid the photoelectric switches, the photoelectric switches control the motor to start.

[0024] Furthermore, the housing includes an upper shell and a lower shell that are detachably connected, an installation space is formed between the upper shell and the lower shell, the upper terminal and the lower terminal are inserted into the lower shell, and the circuit control board is fixed to the inner wall of the lower shell.

[0025] Applying the technical solution of the present invention, there is provided an electric pressure plate, comprising: a shell; a pressure plate body, the pressure plate body comprising a handle and upper and lower terminals arranged side by side, the handle being connected to one end of the lower terminal, the upper and lower terminals passing through the shell; a driving module, arranged in the shell, the driving module driving the upper and lower terminals to rotate forward or reverse to enable the pressure plate body to be put in or out; an electrical testing module, arranged in the shell, the electrical testing module comprising two electrode sheets and two electrical testing blocks, the two electrical testing blocks being respectively arranged on the upper and lower terminals; a circuit control board, the circuit control board being electrically connected to the driving module to control the operation of the driving module, the upper terminals, the lower terminals and the two electrode sheets being electrically connected to the circuit control board through wires.

[0026] Among them, during the rotation of the upper terminal, the first test block is driven to move along the axial direction of the upper terminal to contact or separate from the first electrode piece, and during the rotation of the lower terminal, the second test block is driven to move along the axial direction of the lower terminal to contact or separate from the second electrode piece; when the first test block is in contact with the first electrode piece, the circuit control board measures the voltage of the upper terminal to the ground, and when the second test block is in contact with the second electrode piece, the circuit control board measures the voltage of the lower terminal to the ground.

[0027] Through this solution, while realizing the activation and deactivation of the pressure plate body, it has an electrical testing function, which can detect the voltage between the upper and lower ends of the pressure plate body and the ground before the pressure plate body is activated, ensuring personal safety and reducing power grid tripping accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 FIG2 shows a top view of an electric pressure plate provided by an embodiment of the present invention;

[0030] Figure 2 An exploded view of an electric pressure plate provided by an embodiment of the present invention is shown;

[0031] Figure 3 A schematic diagram of a portion of the structure of an electric pressure plate provided by an embodiment of the present invention is shown;

[0032] Figure 4 Shown Figure 3 Schematic diagram of the signal wheel in;

[0033] Figure 5 Shown Figure 3 Schematic diagram of the electrode sheet in .

[0034] The above drawings include the following reference numerals:

[0035] 101. Handle; 102. Upper terminal; 103. Lower terminal; 111. Housing; 112. Drive module; 1121. First gear; 1122. Second gear; 1123. Third gear; 1124. Fourth gear; 1125. Fifth gear; 1126. Motor; 113. Electrical test module; 1131. Electrode sheet; 11312. Arc-shaped protrusion; 1132. Electrical test block; 11321. Movable block; 11322. Guide hole; 11323. Trigger block; 1133. Signal wheel; 11331. Shielding block; 114. Circuit control board; 1141. Photoelectric switch. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0037] like Figures 1 to 5 As shown, an embodiment of the present invention provides an electric pressure plate, comprising:

[0038] Housing 111; plate body, the plate body includes a handle 101 and an upper terminal 102 and a lower terminal 103 arranged side by side, the handle 101 is connected to one end of the lower terminal 103, and the upper terminal 102 and the lower terminal 103 are inserted into the housing 111;

[0039] A driving module 112 is provided in the housing 111 , and the driving module 112 drives the upper terminal 102 and the lower terminal 103 to rotate forward or reverse, so as to move the pressing plate body into or out of the housing;

[0040] The electrical testing module 113 is disposed in the housing 111 and includes two electrode sheets 1131 and two electrical testing blocks 1132 . The two electrical testing blocks 1132 are respectively disposed on the upper terminal 102 and the lower terminal 103 .

[0041] The circuit control board 114 is electrically connected to the driving module 112 to control the operation of the driving module 112. The upper terminal 102, the lower terminal 103, and the two electrode sheets 1131 are all electrically connected to the circuit control board 114 through wires;

[0042] Among them, during the rotation of the upper terminal 102, the first test block 1132 is driven to move along the axial direction of the upper terminal 102 to contact or separate from the first electrode piece 1131, and during the rotation of the lower terminal 103, the second test block 1132 is driven to move along the axial direction of the lower terminal 103 to contact or separate from the second electrode piece 1131; when the first test block 1132 is in contact with the first electrode piece 1131, the circuit control board 114 measures the voltage of the upper terminal 102 to the ground, and when the second test block 1132 is in contact with the second electrode piece 1131, the circuit control board 114 measures the voltage of the lower terminal 103 to the ground.

[0043] Through this solution, while realizing the insertion and withdrawal of the pressure plate body, it has an electrical testing function, which can realize the voltage detection of the upper and lower ends of the pressure plate body (i.e., the upper terminal 102 and the lower terminal 103) to the ground before the pressure plate body is inserted, thereby ensuring personal safety and reducing power grid tripping accidents.

[0044] like Figure 3 As shown, the electrical test block 1132 includes a movable block 11321 and a trigger block 11323 connected to each other. The movable block 11321 has a threaded hole and is threadedly connected to the upper terminal 102 or the lower terminal 103. When the upper terminal 102 or the lower terminal 103 rotates, the threads drive the corresponding movable block 11321 and trigger block 11323 to move, causing the trigger block 11323 to contact or separate from the corresponding electrode sheet 1131. When the trigger block 11323 contacts the corresponding electrode sheet 1131, the upper terminal 102 or the lower terminal 103 is tested for electrical current.

[0045] The trigger block 11323 has a guide hole 11322, and the housing 111 has a guide post that passes through the guide hole 11322 and is parallel to the upper terminal 102. Due to the guiding and limiting effect of the guide post, the test block 1132 cannot rotate under the screw drive and can only move linearly.

[0046] Specifically, the two electrode sheets 1131 are located between the two electrical test blocks 1132, and the electrode sheets 1131 are elastic metal plates. Figure 5 As shown, the electrode sheet 1131 has an arc-shaped protrusion 11312, which contacts and cooperates with the trigger block 11323, thus ensuring reliable contact and achieving electrical connection; the two trigger blocks 11323 contact the corresponding electrode plates in turn to test the electricity in turn, thereby measuring the voltage of the lower terminal 103 to the ground and the voltage of the upper terminal 102 to the ground respectively.

[0047] In this embodiment, the drive module 112 includes a motor 1126 and a gear set. The gear set is connected to both the upper terminal 102 and the lower terminal 103. The motor 1126 drives the upper terminal 102 and the lower terminal 103 to rotate through the gear set. Such a motor 1126 can drive the upper terminal 102 and the lower terminal 103 to rotate, eliminating the need for two separate drive structures.

[0048] Specifically, the gear set includes a first gear 1121, a second gear 1122, a third gear 1123, a fourth gear 1124 and a fifth gear 1125, wherein the motor 1126 is driven and connected to the third gear 1123, the third gear 1123 is meshed with the second gear 1122 and the fifth gear 1125, the second gear 1122 is meshed with the first gear 1121, the first gear 1121 is connected to the upper terminal 102, the fifth gear 1125 is meshed with the fourth gear 1124, and the fourth gear 1124 is connected to the lower terminal 103.

[0049] Furthermore, the transmission ratio between the third gear 1123 and the first gear 1121 is not equal to the transmission ratio between the third gear 1123 and the fourth gear 1124. Thus, the upper terminal 102 and the lower terminal 103 rotate at different speeds, and the two test blocks 1132 move at different speeds. The two trigger blocks 11323 sequentially contact the corresponding electrode plates to perform separate tests, thereby measuring the voltage of the lower terminal 103 to ground and the voltage of the upper terminal 102 to ground.

[0050] like Figure 3 As shown, the drive module 112 further includes a signal wheel 1133, which rotates with the gear train. A photoelectric switch 1141 is provided on the circuit control board 114. The signal wheel 1133 cooperates with the photoelectric switch 1141 to control the start or stop of the motor 1126 via the photoelectric switch 1141. By starting or stopping the motor 1126 and reversing the motor 1126, the rotation angles of the upper and lower terminals 102 and 103 and the travel distance of the test block 1132 can be controlled.

[0051] Specifically, if Figure 4 As shown, the signal wheel 1133 has multiple blocking blocks 11331 distributed along the circumference. When the blocking block 11331 corresponds to the photoelectric switch 1141, the photoelectric switch 1141 controls the motor 1126 to stop. When the blocking block 11331 avoids the photoelectric switch 1141, the photoelectric switch 1141 controls the motor 1126 to start.

[0052] like Figure 1 As shown, the housing 111 comprises a detachably connected upper and lower housings, with an installation space formed between the upper and lower housings. The upper and lower binding posts 102 and 103 extend into the lower housing, and the circuit control board 114 is fixed to the inner wall of the lower housing. The upper and lower housings protect the internal structure.

[0053] The working principle of the above-mentioned electric pressure plate is described as follows:

[0054] 1. Electrical test instructions:

[0055] Before the pressure plate body is put in and out, it is required to test the upper and lower ends to ensure that the voltage is lower than the safety value before the pressure plate is put in / out. The upper terminal 102 and the lower terminal 103 electrode sheet 1131 are connected to wires (not shown in the figure). When the upper end test block 1132 touches the upper end electrode sheet 1131, the voltage at the upper end of the pressure plate is measured; when the lower end test block 1132 touches the lower end electrode sheet 1131, the voltage at the lower end of the pressure plate is measured.

[0056] 2. Remote control operation and electrical testing process of the pressure plate:

[0057] ① The remote control receives the input operation signal sent by the background, and drives the motor 1126 to rotate forward;

[0058] ② Motor 1126 simultaneously drives second gear 1122 and fifth gear 1125. Second gear 1122 drives first gear 1121, which in turn drives upper terminal 102. Fifth gear 1125 drives fourth gear 1124, which in turn drives lower terminal 103. Due to the different speed ratios of the two gear sets, the test block 1132 of lower terminal 103 moves first to contact electrode 1131. At this time, the blocking block 11331 of signal wheel 1133 blocks the photoelectric switch 1141, causing the signal to switch, and motor 1126 stops. It should be noted that at this time, handle 101 also rotates with lower terminal 103, but has not reached the insertion position.

[0059] ③ The remote control device reads the voltage at the lower end of the pressure plate and transmits it to the backend. The backend determines that the voltage value is lower than the safe value and sends a command. The motor 1126 continues to rotate, and the lower end test block 1132 moves to no longer contact the electrode sheet 1131. Until the upper end test block 1132 moves to contact the electrode sheet 1131, the signal wheel 1133 shielding block 11331 shields the photoelectric switch 1141, causing the signal to switch, and the motor 1126 stops rotating.

[0060] ④ The remote control device reads the voltage on the upper end of the pressure plate and transmits it to the background. The background sends a command after determining that the voltage value is lower than the safety value. The motor 1126 continues to rotate, and the upper end test block 1132 moves to no longer contact the electrode sheet 1131. The fifth gear 1125 drives the lower terminal 103 to continue rotating until the pressure plate reaches the input position. At this time, the signal wheel 1133 blocking block 11331 again blocks the photoelectric switch 1141, causing signal switching, and the motor 1126 finally stops rotating.

[0061] 3. Press plate remote control exit operation and electrical testing process:

[0062] The pressure plate withdrawal operation and electrical testing process are similar to the above-mentioned operation. The main process is as follows:

[0063] Upon receiving the exit signal, the motor 1126 reverses, the upper end and the lower end are tested for electricity, and the pressing plate body completely exits.

[0064] It should be noted that during the electrical testing at the upper end, the handle 101 also rotates along with the lower terminal 103 but does not completely withdraw.

[0065] Through this solution, while realizing the activation and deactivation of the pressure plate body, it has an electrical testing function, which can detect the voltage between the upper and lower ends of the pressure plate body and the ground before the pressure plate body is activated, ensuring personal safety and reducing power grid tripping accidents.

[0066] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0068] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0069] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0070] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0071] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

Claims

1. An electric pressure plate, characterized in that: include: housing (111); A pressure plate body, the pressure plate body comprising a handle (101) and an upper binding post (102) and a lower binding post (103) arranged side by side, the handle (101) being connected to one end of the lower binding post (103), and the upper binding post (102) and the lower binding post (103) being inserted into the housing (111); A driving module (112) is disposed in the housing (111), and the driving module (112) drives the upper connecting post (102) and the lower connecting post (103) to rotate forward or reverse, so as to move the pressing plate body into or out of the housing; An electrical testing module (113) is arranged in the housing (111), the electrical testing module (113) comprising two electrode sheets (1131) and two electrical testing blocks (1132), the two electrical testing blocks (1132) being respectively arranged on the upper terminal (102) and the lower terminal (103); a circuit control board (114), the circuit control board (114) being electrically connected to the driving module (112) to control the operation of the driving module (112), the upper terminal (102), the lower terminal (103), and the two electrode sheets (1131) being electrically connected to the circuit control board (114) via wires; The upper terminal (102) drives the first test block (1132) to move along the axial direction of the upper terminal (102) during rotation, so as to contact or separate from the first electrode sheet (1131); the lower terminal (103) drives the second test block (1132) to move along the axial direction of the lower terminal (103) during rotation, so as to contact or separate from the second electrode sheet (1131); when the first test block (1132) contacts the first electrode sheet (1131), the circuit control board (114) measures the voltage of the upper terminal (102) to the ground; when the second test block (1132) contacts the second electrode sheet (1131), the circuit control board (114) measures the voltage of the lower terminal (103) to the ground.

2. The electric pressure plate according to claim 1, characterized in that: The electrical test block (1132) comprises a movable block (11321) and a trigger block (11323) connected to each other. The movable block (11321) has a threaded hole. The movable block (11321) is threadedly connected to the upper terminal (102) or the lower terminal (103). When the upper terminal (102) or the lower terminal (103) rotates, the corresponding movable block (11321) and the trigger block (11323) are driven to move by the thread, and the trigger block (11323) contacts or separates from the corresponding electrode sheet (1131).

3. The electric pressure plate according to claim 2, characterized in that: The trigger block (11323) has a guide hole (11322), and the housing (111) has a guide column inside. The guide column passes through the guide hole (11322), and the guide column is parallel to the upper terminal (102).

4. The electric pressure plate according to claim 2, characterized in that: The two electrode sheets (1131) are located between the two electrical testing blocks (1132); the electrode sheet (1131) is an elastic metal plate; the electrode sheet (1131) has an arc-shaped protrusion (11312); the arc-shaped protrusion (11312) contacts and cooperates with the trigger block (11323); the two trigger blocks (11323) contact the corresponding electrode sheets in sequence to respectively test the electrical state in sequence.

5. The electric pressure plate according to claim 1, characterized in that: The driving module (112) includes a motor (1126) and a gear set, wherein the gear set is connected to both the upper terminal (102) and the lower terminal (103), and the motor (1126) drives the upper terminal (102) and the lower terminal (103) to rotate via the gear set.

6. The electric pressure plate according to claim 5, characterized in that: The gear set comprises a first gear (1121), a second gear (1122), a third gear (1123), a fourth gear (1124) and a fifth gear (1125), wherein the motor (1126) is drivingly connected to the third gear (1123), the third gear (1123) is meshed with the second gear (1122) and the fifth gear (1125), the second gear (1122) is meshed with the first gear (1121), the first gear (1121) is connected to the upper terminal (102), the fifth gear (1125) is meshed with the fourth gear (1124), and the fourth gear (1124) is connected to the lower terminal (103).

7. The electric pressure plate according to claim 6, characterized in that: The transmission ratio between the third gear (1123) and the first gear (1121) is not equal to the transmission ratio between the third gear (1123) and the fourth gear (1124).

8. The electric pressure plate according to claim 5, characterized in that: The driving module (112) further includes a signal wheel (1133), which rotates along with the gear set. A photoelectric switch (1141) is provided on the circuit control board (114), and the signal wheel (1133) cooperates with the photoelectric switch (1141) to control the start or stop of the motor (1126) through the photoelectric switch (1141).

9. The electric pressure plate according to claim 8, characterized in that: The signal wheel (1133) is provided with a plurality of blocking blocks (11331) distributed along the circumference. When the blocking block (11331) corresponds to the photoelectric switch (1141), the photoelectric switch (1141) controls the motor (1126) to stop. When the blocking block (11331) avoids the photoelectric switch (1141), the photoelectric switch (1141) controls the motor (1126) to start.

10. The electric pressure plate according to claim 1, characterized in that: The housing (111) comprises an upper shell and a lower shell that are detachably connected, an installation space is formed between the upper shell and the lower shell, the upper terminal (102) and the lower terminal (103) penetrate into the lower shell, and the circuit control board (114) is fixed to the inner wall of the lower shell.

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