An electrical automation device mounting base

Abstract

The application provides an electrical automation equipment mounting base, and belongs to the technical field of mounting bases. The structure comprises a base group, wherein the base group comprises a base group cavity, a driving end is vertically arranged in the middle of the base group cavity, a clamping and fixing assembly is threadedly connected to the lower end of the driving end, and a buffer cooling plate group is threadedly connected to the upper end of the driving end. When the driving end rotates clockwise, each clamping head group is driven to open and pull down, thereby clamping and fixing the mounting leg. Meanwhile, the buffer cooling plate group is driven to ascend and abut against the bottom surface of the electrical automation equipment main body for adaptive buffering and installation. The above base group can facilitate the installation and removal of the electrical automation equipment main body.

Description

TECHNICAL FIELD

[0001] The application relates to an electrical automation equipment mounting base. BACKGROUND

[0002] Electrical equipment is a general term for devices such as generators, transformers, power lines and circuit breakers in a power system, and an electrical automation equipment mounting base is required for mounting electrical automation equipment.

[0003] The existing electrical automation equipment mounting base is mainly fixed by screws, when the electrical automation equipment fails, the screws and the heat sink screws on the mounting base need to be disassembled one by one, and then the electrical automation equipment can be repaired and maintained, and the mounting base also needs to be disassembled when cleaning the dust on the heat sink, the above-mentioned repair and maintenance operation is troublesome, and the application provides an electrical automation equipment mounting base. SUMMARY

[0004] In view of the deficiencies of the prior art, the application aims to provide an electrical automation equipment mounting base to solve the existing problems.

[0005] In order to achieve the above-mentioned purpose, the application is realized by the following technical scheme: an electrical automation equipment mounting base, the structure of which comprises a base group, and the electrical automation equipment main body is fixed on the base group by clamping and fixing a clamping ring on the top surface of the base group, the base group comprises a base group, and a driving end is vertically arranged in the middle of the cavity of the base group, and a clamping ring fixing assembly is threadedly connected to the lower end of the driving end, the four side edges of the clamping ring fixing assembly extend to the outside of the top surface of the base group to clamp and fix the corners of the electrical automation equipment main body, the upper end of the driving end is threadedly connected with a buffer cooling plate group, the top surface of the buffer cooling plate group is in abutment with the middle part of the bottom surface of the electrical automation equipment main body, and the other end of the buffer cooling plate group is connected with a cooling generator, a control switch group is arranged on the front surface of the base group, and the driving end, the cooling generator and the control switch group are electrically connected.

[0006] The clamping ring fixing assembly comprises a pull plate group, and a plurality of clamping ring telescopic ends are vertically arranged on the top surface of the pull plate group, each clamping ring telescopic end further comprises a telescopic seat group, and a clamping head group is vertically arranged on the top surface of the telescopic seat group, and a pull core is movably sleeved in the middle part of the clamping head group, and the lower end of the pull core penetrates through the telescopic seat group and is fixed on the pull plate group.

[0007] The buffer cooling plate group comprises a push plate group, and a plurality of sliding seats are movably sleeved on the left and right sides of the push plate group, and a buffer water cooling plate group is movably sleeved on the top surface of the push plate group.

[0008] When the driving end rotates clockwise, the synchronization pulls the clamping assembly to horizontally descend and clamp the four sides of the main body of the electrical automation equipment, and pushes the buffer cooling plate group to horizontally ascend and buffer the bottom surface of the main body of the electrical automation equipment.

[0009] Further improved, the base group includes a base body, and a movable cavity is formed in the middle of the front side of the base body, and a semi-open type opening for the movable sleeve of the buffer cooling plate group is formed in the top front side of the movable cavity, four side edges of the top surface of the movable cavity are provided with square sliding openings for the movable sleeve of the telescopic seat group, and a conical flared opening for the clamping head group to pass through and expand is formed in the middle of the top surface of the square sliding opening, a driving opening is formed in the middle of the bottom surface of the movable cavity, a first row of pipe holes is formed in the right side of the movable cavity, and a plurality of shock-absorbing pads and a plurality of supporting legs are arranged on the four side edges of the bottom surface of the base body.

[0010] Further improved, the driving end includes a cross seat, and a plurality of vertical columns are vertically arranged on the bottom surface of the cross seat, and a driven screw group is sleeved in the middle of the cross seat, and the lower end of the driven screw group is drivingly connected with a motor.

[0011] The driven screw group includes a rotating seat, and a rotating rod is sleeved on the rotating seat, and a first screw thread and a second screw thread are oppositely formed on the upper and lower ends of the rotating rod.

[0012] Further improved, the pull plate group includes a pull plate body, and a first screw thread lifting seat for thread connection with the second screw thread is communicatively arranged in the middle of the top surface of the pull plate body, and a plurality of sliding cylinders for movable sleeving with the vertical columns are also communicatively arranged in the middle of the top surface of the pull plate body, and a plurality of pull columns fixedly connected with pull core pieces are vertically arranged on the four side edges of the top surface of the pull plate body.

[0013] Further improved, the telescopic seat group includes a fixed plate and a square sliding block, a plurality of first springs are sleeved between the fixed plate and the square sliding block, the square sliding block is movably sleeved in the square sliding opening, the fixed plate is fixedly arranged on the lower edge of the square sliding opening, a first pull core opening is formed in the middle of the square sliding block, and a second pull core opening is formed in the middle of the fixed plate.

[0014] Further improved, the clamping head group is composed of a plurality of pull head pieces arranged in an annular array, and after being arranged, the clamping head group has a cylindrical shape, and the number of each pull head piece is 2-4.

[0015] Each pull head piece includes a pull head body, and a hinge seat is arranged on the lower side of the pull head body, and a return spring is sleeved on the hinge of the hinge seat.

[0016] An arc-shaped expansion sliding groove is formed on the inner side of the pull head body, and after each arc-shaped expansion sliding groove is arranged, a conical sliding hole is formed, and an arc-shaped inclined section is formed on the upper end of the pull head body, and an outward convex arc-shaped clamping edge is arranged on the upper end of the arc-shaped inclined section.

[0017] Further improvement, the pull core piece includes a pull rod, and a conical pull core is arranged on the upper end of the pull rod and movably sleeved with the conical sliding hole.

[0018] Further improvement, the push plate group includes a push plate body, a plurality of sliding blocks movably sleeved with the sliding seat are arranged on the left and right sides of the push plate body, a second threaded lifting seat for threaded connection with the first threaded screw is arranged on the middle of the bottom surface of the push plate body, and a second row pipe hole is formed through the right side of the push plate body.

[0019] Further improvement, the buffer water cooling plate group includes a cooling plate body, a plurality of stable sliding columns movably sleeved with the push plate body are vertically arranged on the side of the bottom surface of the cooling plate body, a second spring is sleeved on the column body of each stable sliding column, and a plurality of circulating cooling pipes in communication with the cooling generator are connected to the lower end of the cooling plate body.

[0020] Further improvement, when the electrical automation equipment body is sleeved on the top surface of the base body, the bottom surface of the electrical automation equipment body and the initial top surface of the buffer water cooling plate group form a cleaning gap.

[0021] Further improvement, a plurality of mounting legs are arranged on the side of the bottom surface of the electrical automation equipment body, and a fixing sleeve hole for sleeving the clamping head group is formed through each mounting leg.

[0022] Further improvement, the electrical automation equipment body and the cooling generator are prior art, and the structure will not be described one by one.

[0023] Further improvement, the cooling plate body of the present application can also adopt a wind-cooled heat dissipation plate.

[0024] The present application has the following advantages:

[0025] The present application provides an electrical automation equipment mounting base, which is composed of a base group composed of a base group, a driving end, a clamping and fixing assembly, a buffer cooling plate group, a cooling generator and a control switch group, and is combined and designed on the bottom surface of the electrical automation equipment body, and constitutes an electrical automation equipment mounting base. When the driving end is reversely rotated, the clamping and fixing assembly is lifted to make each clamping head group fold into a cylindrical shape and be separated from the descending clamping of the mounting leg, so that the electrical automation equipment body can be conveniently maintained and maintained, and the buffer cooling plate group is also lowered at the same time. The buffer water cooling plate group is lowered into the half-open type through hole to form a cleaning gap and cooperate with the half-open type through hole to clean the buffer water cooling plate group.

[0026] When the driving end rotates clockwise, it will drive each clamping head group to open and pull down, realizing the clamping and fixing of the installation leg, and also driving the buffer water cooling plate group to rise and adaptively buffer the main body bottom surface of the electrical automation equipment to realize installation, through the design of the above base group, the installation and removal of the electrical automation equipment main body can be conveniently operated, without removing each screw in turn, improving the maintenance and maintenance efficiency of the electrical automation equipment main body, and when cleaning the dust of the buffer cooling plate group, the base group does not need to be removed first, making cleaning simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic view of the electrical automation equipment installation base structure of the application;

[0028] Figure 2 It is a schematic view of the base group structure of the application;

[0029] Figure 3 It is a schematic view of the driving end structure of the application;

[0030] Figure 4 It is a schematic view of the clamping and fixing assembly structure of the application;

[0031] Figure 5 It is a schematic view of the telescopic seat group structure of the application;

[0032] Figure 6 It is a schematic view of the clamping head group structure of the application;

[0033] Figure 7 It is a schematic view of the pull core structure of the application;

[0034] Figure 8 It is a schematic view of the buffer cooling plate group structure of the application;

[0035] Figure 9 It is an enlarged schematic view of part A of the application. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application will be further described below in combination with specific embodiments.

[0037] Please refer to Figures 1-9The application provides an electrical automation equipment mounting base, which comprises a base group 1, an electrical automation equipment main body 2 is fixed on the top surface of the base group 1 through clamping, the base group 1 comprises a base group 3, a driving end 4 is vertically arranged in the middle of the cavity of the base group 3, a clamping fixing assembly 5 is screw-connected to the lower end of the driving end 4, the four side edges of the clamping fixing assembly 5 extend to the outside of the top surface of the base group 3 to clamp and fix the edges and corners of the electrical automation equipment main body 2, a buffer cooling plate group 6 is screw-connected to the upper end of the driving end 4, the top surface of the buffer cooling plate group 6 is in abutment with the middle part of the bottom surface of the electrical automation equipment main body 2, and the other end of the buffer cooling plate group 6 is connected with a cooling generator 7, a control switch group 8 is arranged on the front surface of the base group 3, the driving end 4, the cooling generator 7 and the control switch group 8 are electrically connected, the clamping fixing assembly 5 comprises a pull plate group 51, a plurality of clamping telescopic ends are vertically arranged on the top surface of the pull plate group 51, each clamping telescopic end further comprises a telescopic seat group 52, a clamping head group 53 is vertically arranged on the top surface of the telescopic seat group 52, and a pull core member 54 is movably sleeved in the middle part of the clamping head group 53, the lower end of the pull core member 54 penetrates through the telescopic seat group 52 and is fixed on the pull plate group 51, the buffer cooling plate group 6 comprises a push plate group 61, a plurality of sliding seats 62 are movably sleeved on the left and right sides of the push plate group 61, and a buffer water cooling plate group 63 is movably sleeved on the top surface of the push plate group 61, when the driving end 4 rotates clockwise, the clamping fixing assembly 5 is pulled horizontally and lowered to clamp and fix the four side edges of the electrical automation equipment main body 2, and the buffer cooling plate group 6 is pushed horizontally and raised to abut against and fit the bottom surface of the electrical automation equipment main body 2.

[0038] The base group 3 comprises a base body 31, an active cavity 32 is formed in the middle of the front surface of the base body 31, a semi-open type through hole 33 for movably sleeving the buffer cooling plate group 6 is formed in the top surface of the active cavity 32, square sliding holes 34 for movably sleeving the telescopic seat group 52 are formed in the top surface of the active cavity 32, a conical expansion hole 35 for the clamping head group 53 to pass through and expand is formed in the top surface of the square sliding hole 34, a driving through hole 36 is formed in the middle of the bottom surface of the active cavity 32, a first row of pipe holes 37 are formed in the right side surface of the active cavity 32, a plurality of shock-absorbing pads 38 and a plurality of supporting legs 39 are arranged on the four side edges of the bottom surface of the base body 31.

[0039] The driving end 4 comprises a horizontal seat 41, a plurality of vertical columns 42 are vertically arranged on the four side edges of the bottom surface of the horizontal seat 41, and a driven screw rod group 43 is sleeved in the middle part of the horizontal seat 41, a motor 44 is drivingly connected to the lower end of the driven screw rod group 43, the driven screw rod group 43 comprises a rotating seat 431, a rotating rod 432 is sleeved on the rotating seat 431, and a first screw thread 433 and a second screw thread 434 are oppositely formed on the upper and lower ends of the rod body of the rotating rod 432.

[0040] The pull plate group 51 includes a pull plate body 511, and a first threaded lifting seat 512 for threaded connection with the second thread 434 is arranged in the middle of the top surface of the pull plate body 511, and a plurality of slide cylinders 513 for active penetration with the stand column 42 are also arranged in the middle of the top surface of the pull plate body 511, and a plurality of pull columns 514 for fixed connection with the pull core 54 are vertically arranged on the four edge sides of the top surface of the pull plate body 511.

[0041] The telescopic seat group 52 includes a fixed plate 521 and a square slide block 522, a plurality of first springs 523 are sleeved between the fixed plate 521 and the square slide block 522, the square slide block 522 is actively sleeved in the square slide opening 34, the fixed plate 521 is fixed to the lower edge of the square slide opening 34, a first pull core through opening 524 is arranged in the middle of the square slide block 522, and a second pull core through opening 525 is arranged in the middle of the fixed plate 521.

[0042] The clamping head group 53 is composed of a plurality of pull head pieces 531 arranged in an annular array, and after being attached, it is in a cylindrical shape, the number of each pull head piece 531 is 2-4, each pull head piece 531 includes a pull head body 5311, a hinge seat 5312 is arranged on the lower side of the pull head body 5311, a reset spring 5313 is sleeved on the hinge of the hinge seat 5312, an arc-shaped expansion slide groove 53111 is arranged on the inner side of the pull head body 5311, after each arc-shaped expansion slide groove 53111 is attached to each other, a conical slide hole is formed, and an arc-shaped inclined section 53112 is arranged on the outer side of the upper end of the pull head body 5311, an outer convex arc-shaped clamping edge 53113 is arranged on the upper end of the arc-shaped inclined section 53112.

[0043] The pull core piece 54 includes a pull rod 541, and a conical pull core 542 is arranged on the upper end of the pull rod 541.

[0044] The push plate group 61 includes a push plate body 611, a plurality of slide blocks 612 for active sleeve fitting with the slide seat 62 are arranged on the left and right sides of the push plate body 611, a second threaded lifting seat 613 for threaded connection with the first thread 433 is arranged in the middle of the bottom surface of the push plate body 611, and a second row pipe hole 614 is arranged through the right side of the push plate body 611.

[0045] The buffer water cooling plate group 63 includes a cooling plate body 631, a plurality of stable slide columns 632 for active penetration on the push plate body 611 are vertically arranged on the edge side of the bottom surface of the cooling plate body 631, a second spring 633 is sleeved on the column body of each stable slide column 632, and a plurality of circulating cooling pipes 634 for communication with the cooling generator 7 are connected to the lower end of the cooling plate body 631.

[0046] Working principle:

[0047] First, before installing the electrical automation equipment body 2, the motor 44 on the drive end 4 needs to be started counterclockwise rotation, through the first screw 433 and the second screw 434 on the rotating rod 432 and the threaded lifting of the first threaded lifting seat 512 and the second threaded lifting seat 613, the screw lifting assembly 5 and the buffer cooling plate group 6 are lifted and lowered synchronously, the clamping head group 53 is closed into a cylindrical shape, and the cooling plate body 631 is lowered into the half-open port 33, and then the electrical automation equipment body 2 is placed on the top surface of the base body 31, and the fixed sleeve hole on each mounting leg is matched with the clamping head group 53 closed into a cylindrical shape.

[0048] Then, by starting the motor 44 on the drive end 4 clockwise rotation, through the second screw 434 on the rotating rod 432 and the threaded descent of the first threaded lifting seat 512, the pull plate body 511 is stably lowered on the column 42 and the slide cylinder 513, and the pull rod 514 pulls the pull core 54 down, at this time the conical pull core 542 is lowered in the conical slide hole after being mutually attached to each arc-shaped expansion slide groove 53111, and the arc-shaped expansion slide groove 53111 is opened at the upper end under the action of the hinge seat 5312 and the reset spring 5313, and the conical expansion 35 is used to provide enough space for the pull head body 5311 to swing outward, so that the pull head body 5311 does not appear to be stuck, and when the pull core 54 is pulled down, the square slide block 522 on the extension seat group 52 and each first spring 523 are matched, so that the clamping head group 53 is pulled down at the same time, and the arc-shaped inclined surface 53112 prevents the clamping head group 53 from being stuck, so that each outer convex arc-shaped clamping edge 53113 is opened and clamped on the hole edge of the fixed sleeve hole.

[0049] When the synchronous motor 44 rotates clockwise, the first screw 433 on the rotating rod 432 and the threaded lifting of the second threaded lifting seat 613 are matched, the push plate body 611 and the buffer water cooling plate group 63 are stably lifted on the slide seat 62 and the slide block 612, and under the buffering action of each stable slide column 632 and each second spring 633, the top surface of the cooling plate body 631 is adapted to the bottom surface of the electrical automation equipment body 2 in a buffering manner, and the electrical automation equipment body 2 is fixed and installed on the top surface of the base group 1 and the cooling plate body 631 is installed.

[0050] In addition, when the electrical automation device body 2 needs to be overhauled, maintained and cleaned, the dust accumulated on the cooling plate body 631, only by driving the end 4 counterclockwise rotation, can make the clamps fixed assembly 5 rise to initialize the home of the fixed clamps of the installation feet, and then the electrical automation device body 2 is overhauled, maintained, and the buffer cooling plate group 6 is lowered to initialize the home, so that the bottom surface of the electrical automation device body 2 and the top surface of the buffer water cooling plate group 63 form a cleaning gap, and under the action of the structure design of the semi-open type through port 33, the cleaning dust work can be carried out without removing the electrical automation device body 2.

[0051] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0052] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An electrical automation equipment mounting base, comprising a base assembly (1), wherein the electrical automation equipment body (2) is fixedly mounted on the top surface of the base assembly (1), characterized in that: The base assembly (1) includes a base assembly (3), and a drive end (4) is vertically arranged in the middle of the cavity of the base assembly (3). The lower end of the drive end (4) is threadedly connected to a car fastening assembly (5). The four sides of the car fastening assembly (5) extend to the outside of the top side of the base assembly (3) to fit and fix the corners of the electrical automation equipment body (2). The upper end of the drive end (4) is threadedly connected to a buffer cooling plate assembly (6), and the top surface of the buffer cooling plate assembly (6) is buffered against the middle of the bottom surface of the electrical automation equipment body (2). The other end of the buffer cooling plate assembly (6) is connected to a cooling generator (7). A control switch assembly (8) is arranged on the front side of the base assembly (3). The drive end (4), the cooling generator (7) and the control switch assembly (8) are electrically connected. The car fastening assembly (5) includes a pull plate assembly (51), and multiple car telescopic ends are vertically arranged on the four sides of the top surface of the pull plate assembly (51). Each of the car telescopic ends also includes a telescopic seat assembly (52), and a locking head assembly (53) is vertically arranged on the top surface of the telescopic seat assembly (52). A core puller (54) is movably fitted in the middle of the locking head assembly (53). The lower end of the core puller (54) passes through the telescopic seat assembly (52) and is fixed on the pull plate assembly (51). The buffer cooling plate assembly (6) includes a push plate assembly (61), and multiple slide seats (62) are movably fitted on the left and right sides of the push plate assembly (61), and a buffer water cooling plate assembly (63) is movably fitted on the top surface of the push plate assembly (61). When the drive end (4) rotates clockwise, it simultaneously pulls the carafe fixing assembly (5) to descend horizontally and fix the four sides of the electrical automation equipment body (2) with carafe, and pushes the buffer cooling plate assembly (6) to rise horizontally and abut against the bottom surface of the electrical automation equipment body (2); The telescopic seat assembly (52) includes a fixed plate (521) and a square slider (522). Multiple first springs (523) are fitted on the side between the fixed plate (521) and the square slider (522). The square slider (522) is movably fitted into the square slide opening (34). The fixed plate (521) is fixedly installed on the lower edge of the square slide opening (34). A first pull core opening (524) is provided through the middle of the square slider (522). A second pull core opening (525) is provided through the middle of the fixed plate (521). The card slot assembly (53) is composed of multiple pull head parts (531) attached in a circular array, and is cylindrical after being attached. The number of each pull head part (531) is 2-4. Each of the aforementioned pull head components (531) includes a pull head body (5311), and a hinge seat (5312) is provided on the lower side of the pull head body (5311), and a return spring (5313) is sleeved on the hinge of the hinge seat (5312). The inner side of the slider body (5311) is provided with an arc-shaped expansion groove (53111), and the arc-shaped expansion grooves (53111) fit together to form a conical sliding hole. The outer side of the upper end of the slider body (5311) is provided with an arc-shaped inclined section (53112), and the upper end of the arc-shaped inclined section (53112) is provided with an outwardly protruding arc-shaped retaining edge (53113). The core-pulling component (54) includes a pull rod (541), and the upper end of the pull rod (541) is provided with a conical core (542) that is movable with the conical sliding hole. The drive end (4) includes a cross seat (41), and multiple columns (42) are vertically arranged on the four sides of the bottom surface of the cross seat (41). A driven screw assembly (43) is fitted in the middle of the cross seat (41), and a motor (44) is connected to the lower end of the driven screw assembly (43). The driven screw assembly (43) includes a rotating seat (431), and a rotating rod (432) is sleeved on the rotating seat (431). The rotating rod (432) has a first thread (433) and a second thread (434) in opposite directions at its upper and lower ends. The buffer water-cooled plate assembly (63) includes a cooling plate body (631), and a plurality of stabilizing sliding columns (632) are vertically arranged on the bottom side of the cooling plate body (631) and are movably sleeved on the push plate body (611). A second spring (633) is sleeved on the column of each stabilizing sliding column (632). A plurality of circulating cooling pipes (634) connected to the cooling generator (7) are connected to the lower end of the cooling plate body (631).

2. The mounting base for electrical automation equipment according to claim 1, characterized in that: The base assembly (3) includes a base body (31), and a movable cavity (32) is provided in the middle of the front side of the base body (31). A semi-open passage (33) for the movable assembly of the buffer cooling plate assembly (6) is provided on the front side of the top surface of the movable cavity (32). A square sliding opening (34) for the movable assembly of the telescopic seat assembly (52) is provided on the four sides of the top surface of the movable cavity (32). A conical flared opening (35) for the locking head assembly (53) to pass through and unfold is provided in the middle of the top surface of the square sliding opening (34). A drive passage (36) is provided in the middle of the bottom surface of the movable cavity (32). A first row of pipe holes (37) is provided on the right side of the movable cavity (32). Multiple shock-absorbing pads (38) and multiple support legs (39) are provided on the four sides of the bottom surface of the base body (31).

3. The mounting base for electrical automation equipment according to claim 2, characterized in that: The pull plate assembly (51) includes a pull plate body (511), and a first threaded lifting seat (512) for threaded connection with the second thread (434) is provided in the middle of the top surface of the pull plate body (511). A plurality of sliding cylinders (513) for movably sleeved with the column (42) are also provided in the middle of the top surface of the pull plate body (511). A plurality of pull columns (514) for fixed connection with the pull core (54) are vertically provided on the four sides of the top surface of the pull plate body (511).

4. The mounting base for electrical automation equipment according to claim 3, characterized in that: The push plate assembly (61) includes a push plate body (611), and multiple sliders (612) that are movably fitted with the slide block (62) are provided on the left and right sides of the push plate body (611). A second threaded lifting seat (613) for threaded connection with the first thread (433) is provided in the middle of the bottom surface of the push plate body (611). A second row of pipe holes (614) is provided through the right side of the push plate body (611).

Images