Temporary supporting equipment for automatic assembly of high-voltage switch

Abstract

The invention discloses temporary supporting equipment for automatic assembly of a high-voltage switch, and the temporary supporting equipment comprises an electric hydraulic cylinder which is provided with a push rod; the connecting seat is arranged at the top end of the push rod; the supporting piece is arranged at the upper end of the connecting base, the supporting piece can slide relative to the connecting base, and the supporting piece and the connecting base are arranged in a spaced mode; the elastic piece is arranged between the supporting piece and the connecting base and upwards abuts against and applies pressure to the supporting piece; the detection element is used for acquiring compression stroke change information of the elastic piece; the electric hydraulic cylinder is electrically connected with the detection element and obtains compression stroke change information of the elastic piece through the detection element. According to the invention, the circuit breaker and the disconnecting switch can be automatically and temporarily supported in the assembling process, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage switch assembly equipment, and in particular to a temporary support device for automatic assembly of a high-voltage switch. Background Art

[0002] Gas Insulated Metal Enclosed Switchgear (GIS) is a high-voltage switchgear that uses gas as an insulating and arc-extinguishing medium. It combines high-voltage electrical components such as circuit breakers, disconnectors, grounding switches, transformers, lightning arresters, busbars, etc., and encapsulates them in a metal casing. In the original assembly scheme, the assembly of the above-mentioned high-voltage switchgear is manually operated. In the assembly operation of the circuit breaker and the disconnector, it is necessary to manually arrange the brackets for multiple times to temporarily support the multiple supporting points on the disconnector and the circuit breaker. The heights of the multiple supporting points are different. Therefore, it is necessary to manually use instruments such as levels and theodolites to detect them, and to ensure that the height position of the brackets is appropriate by setting gaskets. At the same time, the manual operation is limited by the working space, and the operation of arranging brackets and gaskets is difficult. In addition, the brackets need to be arranged one by one according to the assembly process, and the workload is large. As a result, the assembly efficiency of the circuit breaker and the disconnector is greatly reduced. More importantly, most of the assembly steps of other components in the high-voltage switchgear can be assembled using automated equipment. Due to the current limitation that the assembly of circuit breakers and disconnectors can only be achieved by manual operation, the assembly efficiency of the entire high-voltage switchgear is greatly reduced.

[0003] The related art expects to temporarily support circuit breakers and disconnectors by using jacks, linear drives and other equipment that can be automatically lifted to achieve automated operation. However, the above-mentioned lifting equipment cannot control the supporting load of the circuit breaker and disconnector. During actual test operations, there may be a problem of insufficient lifting distance to provide effective support, or excessive lifting may occur, thereby destroying the stability of the circuit breaker and disconnector. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides a temporary support device for automatic assembly of a high voltage switch.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a temporary support device for automatic assembly of a high-voltage switch, the temporary support device comprising:

[0006] An electric hydraulic cylinder provided with a push rod;

[0007] A connecting seat, which is arranged at the top end of the push rod;

[0008] A support member, which is arranged at the upper end of the connecting seat, the support member can slide relative to the connecting seat and the two are arranged at an interval;

[0009] an elastic member, which is disposed between the support member and the connecting seat and abuts upwardly against and presses the support member; and

[0010] A detection element, used for obtaining compression stroke change information of the elastic member;

[0011] Wherein, the electric hydraulic cylinder is electrically connected to the detection element and obtains the compression stroke change information of the elastic member through the detection element.

[0012] The application of this application has the following beneficial effects: a connecting seat, a support member and an elastic member are provided, and when the electric hydraulic cylinder is working, the connecting seat, the support member and the elastic member can be pushed upward by a push rod until the support member contacts the supported device (circuit breaker or disconnector). After that, the push rod continues to lift, and the support member will move downward and compress the elastic member under the restriction of the supported device. The support load required for the supported device can be calculated in advance, so that only the corresponding compression stroke needs to be calculated according to the elastic modulus of the elastic member, and it can be considered that the temporary support device provides a suitable load for the supported device when the elastic member is compressed to a predetermined stroke. The electric hydraulic cylinder can obtain the compression stroke change information of the elastic member through the detection element, and then control the push rod to stop lifting when the elastic member reaches the predetermined compression stroke. At this time, the temporary support device provides effective support for the supported device. In addition, for support points of different heights, the temporary support device can automatically adapt to the height of the support point through the stroke of the push rod. Therefore, the application of the temporary support device can realize automatic temporary support for both the circuit breaker and the disconnector during the assembly process, thereby improving the assembly efficiency.

[0013] Optionally, the detection element is used to obtain compression stroke change information of the elastic member by detecting a height change of the support member relative to the detection element.

[0014] Optionally, the support member includes a first support plate and a connecting shaft fixedly disposed on the first support plate, the first support plate and the connecting seat are arranged at an interval, and the connecting shaft passes through the connecting seat and is slidably disposed relative to the connecting seat.

[0015] Optionally, the elastic member is a compression spring, the elastic member is sleeved outside the connecting shaft, and the upper and lower ends of the elastic member are respectively in contact with the first supporting plate and the connecting seat.

[0016] Optionally, the support member further includes a limit member disposed at the bottom end of the connecting shaft, and the limit member is used to limit the support member from detaching upward from the connecting seat.

[0017] Optionally, the limiting member is a limiting plate having a diameter greater than that of the connecting shaft, and the limiting plate is detachably mounted on the bottom end of the connecting shaft by screws.

[0018] Optionally, the temporary support device also includes a cover shell arranged on the outer shell of the electric hydraulic cylinder, the cover shell includes an annular shell and a cover plate, the annular shell is formed with a cavity and an opening, the cover plate is arranged at the opening and is gap-matched with the inner wall of the annular shell, and the connecting seat is arranged in the cavity; the support member also includes a second support plate, the first support plate and the second support plate are respectively located on the upper and lower sides of the cover plate, and the first support plate, the second support plate and the cover plate are fixedly connected.

[0019] Optionally, the detection element includes a first displacement sensor and a second displacement sensor, both of which are arranged on a connecting seat, and the first position sensor is used to detect a height change of the first support plate, and the second position sensor is used to detect a height change of the cover plate.

[0020] Optionally, the temporary support device also includes a connecting block arranged on the connecting seat, the connecting block, the connecting seat and the push rod are fixedly connected together by screws, and there is a set distance between the upper end surface of the connecting block and the lower end surface of the first support plate.

[0021] Optionally, a guide structure is provided between the connecting seat and the electric hydraulic cylinder, the guide structure comprising a guide shaft fixedly provided on the connecting seat and a guide hole provided on the electric hydraulic cylinder, the guide shaft being slidably provided in the guide hole.

[0022] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. The best embodiments or means of the present application will be described in detail in conjunction with the drawings, but they are not intended to limit the technical solutions of the present application. In addition, there are multiple features, elements, and components that appear in each of the following texts and drawings, and different symbols or numbers are marked for convenience, but they all represent components with the same or similar structures or functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application is further described below in conjunction with the accompanying drawings:

[0024] Figure 1 A schematic structural diagram of a temporary support device for automatic assembly of a high-voltage switch provided in an embodiment of the present application;

[0025] Figure 2 Exploded view of temporary support equipment;

[0026] Figure 3 An exploded view of the connecting seat, the supporting member and the elastic member;

[0027] Figure 4 A cross-sectional view of a temporary support device;

[0028] Figure 5 for Figure 4 A magnified schematic diagram of part A;

[0029] Figure 6 for Figure 4 A magnified schematic diagram of part B;

[0030] Figure 7 The exploded view of the connection block, the connection seat and the electric hydraulic cylinder;

[0031] Figure 8 Schematic diagram of temporary support equipment during application.

[0032] Among them, 1. electric hydraulic cylinder; 10. push rod; 100. connecting block; 11. shell; 12. fixing block; 120. guide hole; 2. connecting seat; 3. support member; 30. first support plate; 31. connecting shaft; 32. limit plate; 33. second support plate; 4. elastic member; 5. first displacement sensor; 6. second displacement sensor; 7. cover; 70. annular shell; 71. cover plate; 8. guide shaft; 9. bracket. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments based on the embodiments are intended to be used to explain the present application and cannot be understood as limiting the present application.

[0034] In the description of the present application, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] This embodiment provides a temporary support device for automatic assembly of high-voltage switches, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the temporary support device includes an electric hydraulic cylinder 1, a connection seat 2, a support member 3, an elastic member 4 and a detection element. Among them, the electric hydraulic cylinder 1 is provided with a push rod 10, the connection seat 2 is provided at the top of the push rod 10, the support member 3 is provided at the upper end of the connection seat 2, the support member 3 can slide relative to the connection seat 2 and the two are arranged at intervals. The elastic member 4 is provided between the support member 3 and the connection seat 2 and abuts and presses the support member 3 upward. The connection seat 2, the support member 3 and the elastic member 4 are provided. When the electric hydraulic cylinder 1 is working, the push rod 10 can push the connection seat 2, the support member 3 and the elastic member 4 upward until the support member 3 contacts the supported equipment (circuit breaker or disconnector). After that, the push rod 10 continues to lift, and the support member 3 will move downward and compress the elastic member 4 under the restriction of the supported equipment. The support load required for the supported equipment can be calculated in advance, so that it is only necessary to calculate the corresponding compression stroke according to the elastic modulus of the elastic member 4, and it can be considered that the temporary support device provides a suitable load for the supported equipment when the elastic member 4 is compressed to a predetermined stroke.

[0038] The detection element is used to obtain the compression stroke change information of the elastic member 4. The electric hydraulic cylinder 1 is electrically connected to the detection element and obtains the compression stroke change information of the elastic member 4 through the detection element. The electric hydraulic cylinder 1 can obtain the compression stroke change information of the elastic member 4 through the detection element, and then control the push rod 10 to stop lifting when the elastic member 4 reaches the predetermined compression stroke. At this time, the temporary support device provides effective support for the supported equipment. Moreover, for support points of different heights, the temporary support device can automatically adapt to the height of the support point through the stroke of the push rod 10. Therefore, the application of the temporary support device can realize automatic temporary support for both the circuit breaker and the disconnector during the assembly process, thereby improving the assembly efficiency.

[0039] It should be noted that if Figure 4As shown, the "up" and "down" mentioned in this embodiment refer to the placement orientation of the temporary support device when in use. In addition, before the temporary support device starts working, the elastic member 4 is already in a compressed state, and the compression stroke of the elastic member 4 is set to h at this time; after the temporary support device is working, when the support member 3 contacts the supported device and moves downward to compress the elastic member 4, when the support member 3 reaches an appropriate load on the supported device, the compression stroke of the elastic member 4 is set to H at this time. The "compression stroke change information of the elastic member 4" refers to the difference between H and h. It is easy to understand that the required H value can be calculated based on the elastic modulus of the elastic member 4 and the pre-calculated required support load. In this way, after the detection element detects that the compression stroke of the elastic member 4 has changed (increased) (Hh), the electric hydraulic cylinder 1 can obtain the above information through the detection element and control the locking of the electric hydraulic cylinder 1 accordingly.

[0040] The electric hydraulic cylinder 1 is an existing device that can be purchased directly on the market. The electric hydraulic cylinder 1 is a device that combines an electric motor with a hydraulic system. The electric motor drives the hydraulic pump to rotate. The hydraulic pump sucks liquid from the oil tank and pushes the liquid into the hydraulic cylinder by increasing the pressure. The piston inside the hydraulic cylinder moves under the thrust of the liquid, thereby driving the push rod 10 described in this embodiment to produce linear motion. Through the control of the control system, the movement direction, moving speed and stop of the push rod 10 can be realized.

[0041] In order to improve the detection accuracy of the detection element and to facilitate the arrangement of the detection element, the detection element in this embodiment is used to obtain the compression stroke change information of the elastic member 4 by detecting the height change of the support member 3 relative to the detection element. Specifically, the detection element in this embodiment is a displacement sensor, which can be a photoelectric position sensor, an ultrasonic displacement sensor, or an inductive displacement sensor. Detecting the motion stroke of a physical structure by a displacement sensor is a conventional technology and will not be described here.

[0042] The push rod 10 in this embodiment applies a pushing force to the support member 3 through the connection seat 2 and the elastic member 4. Specifically, the support member 3 includes a first support plate 30 and a connection shaft 31 fixedly arranged on the first support plate 30. The first support plate 30 is arranged at a distance from the connection seat 2, and the connection shaft 31 passes through the connection seat 2 and is slidably arranged relative to the connection seat 2. In this way, after the support member 3 contacts and abuts against the supported device, the first support plate 30 can slide relative to the connection seat 2 through the connection shaft 31, thereby compressing the elastic member 4.

[0043] Furthermore, the elastic member 4 in this embodiment is a compression spring, which is sleeved outside the connecting shaft 31, and the upper and lower ends of the elastic member 4 are respectively in contact with the first support plate 30 and the connecting seat 2. This facilitates the arrangement of the elastic member 4 and ensures the stability of the elastic member 4 during operation. For ease of assembly, the connecting shaft 31 and the first support plate 30 can be detachably connected, and the compression spring as the elastic member 4 is first sleeved outside the connecting shaft 31, and then the first support plate 30 is fixed to the connecting shaft 31 by screws.

[0044] Furthermore, combined Figure 3 , Figure 4 and Figure 5 As shown, the support member 3 in this embodiment also includes a stopper provided at the bottom end of the connecting shaft 31, and the stopper is used to limit the support member 3 from upwardly separating from the connecting seat 2. Specifically, the stopper in this embodiment is a stopper plate 32 having a diameter larger than that of the connecting shaft 31, and the stopper plate 32 is detachably mounted on the bottom end of the connecting shaft 31 by screws. That is, in this embodiment, threaded holes are provided at the top and bottom ends of the connecting shaft 31, and the first support plate 30 is locked and fixed to the upper end of the connecting shaft 31 by screws passing through it, and the stopper plate 32 is locked and fixed to the lower end of the connecting shaft 31 by screws passing through it. The first support plate 30 and the stopper plate 32 are respectively located above and below the connecting seat 2, and the compression spring as the elastic member 4 is located between the first support plate 30 and the connecting seat 2, and the elastic member 4 can be limited by the stopper plate 32 so that the elastic member 4 is in a compressed state when the temporary supporting device is not working, so that the support member 3 can remain stable relative to the connecting seat 2 before contacting the supported device.

[0045] like Figure 2As shown, the temporary support device in this embodiment also includes a cover shell 7 arranged on the outer shell 11 of the electric hydraulic cylinder 1, and the cover shell 7 includes an annular shell 70 and a cover plate 71. The annular shell 70 is formed with a cavity and an opening, the cover plate 71 is arranged at the opening and is in clearance with the inner wall of the annular shell 70, and the connecting seat 2 is arranged in the cavity. In this way, when the temporary support device is not working, the connecting seat 2, the first support plate 30, the elastic member 4 and the detection element and other components can be covered in the cavity through the cover shell 7, so that the above components are not easily stained by dust and the like, and are more beautiful. At the same time, the support member 3 in this embodiment also includes a second support plate 33, and the first support plate 30 and the second support plate 33 are respectively located on the upper and lower sides of the cover plate 71, and the first support plate 30, the second support plate 33 and the cover plate 71 are fixedly connected. Since the annular shell 70 surrounds the connection seat 2, the first support plate 30, the elastic member 4, the detection element and other components, the size of the opening formed by the annular shell 70 will be larger than the size of the first support plate 30, so the size of the cover plate 71 will be larger than the size of the first support plate 30. In this embodiment, the size of the cover plate 71 is designed to be thinner, and the thickness of the first support plate 30 and the second support plate 33 is designed to be relatively thick, and the first support plate 30 and the second support plate 33 have higher rigidity. In this way, the second support plate 33 can avoid direct contact with the supported device through the cover plate 71, and prevent the cover plate 71 from being squeezed and damaged.

[0046] Further, such as Figure 4 and Figure 6 As shown, in order to improve the detection accuracy of the detection element for the compression stroke change information of the elastic member 4, the detection element in this embodiment includes a first displacement sensor 5 and a second displacement sensor 6. The first displacement sensor 5 and the second displacement sensor 6 are both arranged on the connecting seat 2, and the first position sensor is used to detect the height change of the first support plate 30, and the second position sensor is used to detect the height change of the cover plate 71. Therefore, the first displacement sensor 5 and the second displacement sensor 6 are used to independently detect the height change of the first support plate 30 and the cover plate 71, respectively, and the accuracy of the detection data can be mutually verified. At the same time, the online reliability of the detection element can also be improved.

[0047] Combination Figure 2 , Figure 4 and Figure 7As shown, the temporary support device also includes a connection block 100 disposed on the connection seat 2. The connection block 100, the connection seat 2 and the push rod 10 are fixedly connected together by screws, and there is a set distance between the upper end surface of the connection block 100 and the lower end surface of the first support plate 30. On the one hand, the connection block 100 is provided to facilitate the assembly operation of the connection seat 2 and the push rod 10; on the other hand, by providing the connection block 100 and forming a set distance between the connection block 100 and the first support plate 30, the distance that the first support plate 30 moves downward can be structurally limited, so that the compression stroke change of the elastic member 4 can be accurately controlled. That is, the value of the set distance can be set according to the difference between H and h mentioned above, so that even if the detection element has an abnormal problem, the compression stroke change of the spring can be controlled by the connection block 100. The value of the set distance can be controlled by selecting connection blocks 100 of different thickness sizes.

[0048] like Figure 7 As shown, in this embodiment, a guide structure is provided between the connecting seat 2 and the electric hydraulic cylinder 1. The guide structure includes a guide shaft 8 fixedly provided on the connecting seat 2 and a guide hole 120 provided on the electric hydraulic cylinder 1, and the guide shaft 8 is slidably provided in the guide hole 120. Specifically, a fixing block 12 is fixedly provided on the electric hydraulic cylinder 1, and a guide hole 120 is provided on the fixing block 12. When the electric hydraulic cylinder 1 is working, the push rod 10 moves upward, the connecting seat 2 is lifted by the push rod 10, the connecting seat 2 moves upward and drives the guide shaft 8 to slide in the guide hole 120.

[0049] like Figure 8 As shown, the temporary support device is installed on the bracket 9 when used. According to the height of different support points, brackets 9 of different heights can be set. It is easy to understand that the overall height of the bracket 9 and the temporary support device is lower than the height of the corresponding support point. The purpose of setting the bracket 9 is to provide a basic height for the temporary support device to avoid the situation where the height of the support point exceeds the maximum stroke of the push rod 10 and cannot be effectively supported. It can be understood that for support points with lower heights, brackets 9 with lower heights are set accordingly; for support points with higher heights, brackets 9 with higher heights are set accordingly.

[0050] Combination Figures 1 to 7As shown, the working process of the temporary support device is described as follows: First, the temporary support device is moved to a predetermined position by a manipulator or a slide device, so that the temporary support device is below the support point. After that, the electric hydraulic cylinder 1 works to drive the push rod 10 to rise, and the push rod 10 lifts the connecting seat 2 and the support member 3 to move upward. After the support member 3 contacts the lifted device, the push rod 10 continues to lift the connecting seat 2 and the support member 3, which will cause the support member 3 to move downward under the abutment of the lifted device. The support member 3 will compress the elastic member 4 downward during the downward movement. By detecting the downward movement stroke of the support member 3 by the detection element, it is possible to determine the compression stroke change caused by the elastic member 4 being compressed by the support member 3. When the compression stroke of the elastic member 4 reaches the required compression stroke calculated in advance, the electric hydraulic cylinder 1 will be locked, so that the push rod 10 remains in the current lifting state.

[0051] Finally, in the next assembly process, a support structure belonging to the high-voltage switchgear itself is installed between the isolating switch and the circuit breaker to replace the temporary support device provided in this embodiment. The electric hydraulic cylinder 1 is controlled to work and the push rod 10 is retracted, and the temporary support device can be removed.

[0052] The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. A temporary support device for automatic assembly of high-voltage switches, characterized in that: The temporary support equipment comprises: An electric hydraulic cylinder (1) provided with a push rod (10); A connecting seat (2) disposed at the top end of the push rod (10); A support member (3) is arranged at the upper end of the connecting seat (2), the support member (3) being able to slide relative to the connecting seat (2) and the two being arranged at an interval; an elastic member (4), which is disposed between the support member (3) and the connecting seat (2) and abuts against and presses the support member (3) upward; and A detection element, used for obtaining information on changes in the compression stroke of the elastic member (4); Wherein, the electric hydraulic cylinder (1) is electrically connected to the detection element and obtains the compression stroke change information of the elastic member (4) through the detection element.

2. The temporary support device according to claim 1, characterized in that: The detection element is used to obtain compression stroke change information of the elastic member (4) by detecting a height change of the support member (3) relative to the detection element.

3. The temporary support device according to claim 1, characterized in that: The support member (3) comprises a first support plate (30) and a connecting shaft (31) fixedly arranged on the first support plate (30); the first support plate (30) and the connecting seat (2) are arranged at a distance; the connecting shaft (31) passes through the connecting seat (2) and is slidably arranged relative to the connecting seat (2).

4. The temporary support device according to claim 3, characterized in that: The elastic member (4) is a compression spring, and the elastic member (4) is sleeved outside the connecting shaft (31), and the upper and lower ends of the elastic member (4) are respectively in contact with the first supporting plate (30) and the connecting seat (2).

5. The temporary support device according to claim 3, characterized in that: The support member (3) further comprises a limiting member arranged at the bottom end of the connecting shaft (31), wherein the limiting member is used to limit the support member (3) from detaching upward from the connecting seat (2).

6. The temporary support device according to claim 5, characterized in that: The limiting member is a limiting plate (32) having a diameter greater than that of the connecting shaft (31), and the limiting plate (32) is detachably mounted on the bottom end of the connecting shaft (31) by means of screws.

7. The temporary support device according to claim 3, characterized in that: The temporary support device further comprises a cover shell (7) arranged on the outer shell (11) of the electric hydraulic cylinder (1), the cover shell (7) comprising an annular shell (70) and a cover plate (71), the annular shell (70) being formed with a cavity and an opening, the cover plate (71) being arranged at the opening and being in clearance fit with the inner wall of the annular shell (70), and the connecting seat (2) being arranged in the cavity; The support member (3) further comprises a second support plate (33); the first support plate (30) and the second support plate (33) are respectively located on the upper and lower sides of the cover plate (71); and the first support plate (30), the second support plate (33) and the cover plate (71) are fixedly connected.

8. The temporary support device according to claim 7, characterized in that: The detection element comprises a first displacement sensor (5) and a second displacement sensor (6), the first displacement sensor (5) and the second displacement sensor (6) are both arranged on the connection seat (2), and the first position sensor is used to detect the height change of the first support plate (30), and the second position sensor is used to detect the height change of the cover plate (71).

9. The temporary support device according to any one of claims 1 to 8, characterized in that: The temporary support device also includes a connection block (100) arranged on the connection seat (2); the connection block (100), the connection seat (2) and the push rod (10) are fixedly connected together by screws, and a set distance is provided between the upper end surface of the connection block (100) and the lower end surface of the first support plate (30).

10. The temporary support device according to any one of claims 1 to 8, characterized in that: A guide structure is provided between the connecting seat (2) and the electric hydraulic cylinder (1), the guide structure comprising a guide shaft (8) fixedly provided on the connecting seat (2) and a guide hole (120) provided on the electric hydraulic cylinder (1), the guide shaft (8) being slidably provided in the guide hole (120).

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