Production process control device using FF bus and electronic wiring composite technology

Abstract

The utility model discloses a production process control device using FF bus and electronic wiring composite technology, comprising a control cabinet, a controller and a console, the upper end of one side of the control cabinet is provided with a placing cavity, the controller is arranged in the placing cavity, the lower end of one side of the control cabinet is provided with a storage cavity, and the storage cavity is arranged in the control cabinet. The console is slidably mounted in the storage cavity; wire inlet holes which are communicated with each other are formed between the placement cavity and the storage cavity, the circuit arrangement assembly comprises two groups of positioning shells, a linkage part and two groups of separation parts, the positioning shells are communicated with the interiors of the wire inlet holes, the separation parts and the positioning shells are arranged in pairs, and winding wheels are rotationally connected with the interiors of the positioning shells. According to the utility model, the control cabinet and the console are designed in a centralized manner, thereby facilitating the subsequent carrying and transportation, and meanwhile, the line arrangement assembly can assist the control cabinet in line arrangement, thereby preventing the maintenance efficiency from being affected by winding during the maintenance of the line.

Description

TECHNICAL FIELD

[0001] The utility model belongs to FF bus and electronic wiring control device technical field, especially use FF bus and electronic wiring composite technology's production process control device. BACKGROUND

[0002] FF bus technology provides a kind of full digital serial bidirectional communication system, for connecting the various intelligent instrument equipment and automation system of industrial field.The technology allows on control layer according to the actual situation in field to use redundant H1 field bus pass card piece, and each pair of redundant H1 pass card piece can connect 12 field bus instruments at most.Electronic wiring technology is directly connected by field signal I / O channel, or I / O card piece cabinet (box) is placed in field, and controller is communicated to field cabinet, and system performance is optimized, and design installation work is simplified.This technology makes each individual I / O channel can be distributed to any controller in system by electronic wiring, provides optimized system performance, and simplifies design and installation work.Therefore, with the development of technology, FF bus technology and electronic wiring technology are combined, can provide an efficient, reliable and cost-effective industrial automation solution, and FF bus technology and electronic wiring technology are combined, also effectively and simply control in production process.

[0003] However, prior art has some problems: FF bus technology and electronic wiring technology are combined, although design and installation work are simplified, work efficiency is improved, but the equipment used by the combination of the two is split type, which has a problem, the overall equipment is inconvenient to carry and transport, reduces the convenience, and secondly, the control cabinet used by console and electronic wiring is split type, and the line used between the two is too much, which is easy to cause winding, affect daily maintenance, therefore we propose a production process control device using FF bus and electronic wiring composite technology. Utility model content

[0004] In view of the problems existing in prior art, the utility model aims at providing a production process control device using FF bus and electronic wiring composite technology, which is designed by concentrating the control cabinet and the console, facilitating subsequent carrying and transportation, and the line arrangement assembly can assist the control cabinet in arranging the lines, to avoid affecting the maintenance efficiency due to winding during maintenance.

[0005] The utility model is implemented as follows: a production process control device using FF bus and electronic wiring composite technology, comprising:

[0006] The control cabinet, controller, and console are provided. The upper part of one side of the control cabinet has a placement cavity, and the controller is placed inside the placement cavity. The lower part of one side of the control cabinet has a storage cavity, and the console is slidably installed inside the storage cavity. The controller and the console are electrically connected by a line.

[0007] The cable management assembly includes a cable inlet hole that communicates with the placement cavity and the storage cavity. The cable management assembly comprises two sets of positioning shells, a linkage component, and two sets of separating components. The positioning shells communicate with the inside of the cable inlet hole. The separating components are arranged in pairs with the positioning shells. A winding wheel is rotatably connected inside the positioning shell. Multiple sets of separating plates are slidably sleeved on the outside of the winding wheel. The separating components are located inside the winding wheel, and the multiple sets of separating plates are all drivenly connected to the separating components. Thus, the multiple sets of separating plates are arranged to be far apart or close together through the separating components. The linkage component is located between the two sets of separating components, and the two sets of separating components are fixed together through the linkage component.

[0008] Optionally, a front cover plate is rotatably connected to the lower end of one side of the control cabinet, and a rear cover plate is detachably connected to the lower end of the other side of the control cabinet. Both ends of one side of the front cover plate are provided with connecting rods, and both sets of connecting rods are rotatably connected to the control console.

[0009] Optionally, a sliding support plate is provided at the bottom of the control console, and grooves are provided at the lower ends of both sides inside the storage cavity, and the sliding support plate is slidably installed inside the grooves.

[0010] Optionally, the connecting rod consists of a sliding shell and an extension plate. The sliding shell is rotatably connected to the side wall of the control console, and a sliding groove is provided at one end of the sliding shell. The extension plate is slidably installed inside the sliding groove, and a connecting seat is fixedly installed at one end of the extension plate. The connecting seat is fixedly connected to the front cover plate.

[0011] Optionally, the upper surface of the positioning shell is provided with clearance holes, and multiple sets of second cable trays are slidably connected inside the clearance holes. The second cable trays are hollow and used for cable insertion. The clearance holes are corresponding to the cable inlets. Another set of clearance holes is provided on the side of the positioning shell near the control console. Multiple sets of first cable trays are slidably connected inside the other set of clearance holes. The first cable trays are hollow. The first cable trays and second cable trays are arranged in pairs. The first cable trays are arranged in pairs with the partition plate. Both the first cable trays and the second cable trays are fixedly connected to the partition plate.

[0012] Optionally, the separating component comprises a plurality of sets of adjusting lead screws arranged in pairs with the separating plates, the adjusting slots are formed in the interior of the winding wheel, the plurality of sets of adjusting lead screws are rotationally installed in the interior of the adjusting slots, and the plurality of sets of adjusting lead screws are externally threadedly connected with recessed linkage rods, the recessed linkage rods pass through the interior of the adjusting slots to the exterior of the winding wheel at both ends, and the recessed linkage rods are fixedly connected with the separating plates.

[0013] Optionally, one end of each of the two adjacent sets of adjusting rods is fixedly installed with a first gear and a third gear, the upper surface of the first gear is meshingly connected with another set of first gears, one side of each of the other set of first gears is fixedly installed with a second gear, the second gear is meshingly connected with the third gear, and the first gear and the third gear are fixedly installed with a positioning plate.

[0014] Optionally, the separating component further comprises adjusting rods, a through hole is formed in one end of the positioning shell, another set of through holes that are in communication with the adjusting slots are formed in one end of the winding wheel, and the two sets of through holes are correspondingly arranged, one end of each of the adjusting rods passes through the interior of the two sets of through holes to the interior of the adjusting slots in sequence, and one end of each of the adjusting rods is fixedly connected with one set of adjusting lead screws.

[0015] Optionally, the linkage component comprises two sets of connecting rods, the connecting rods are fixedly connected with the adjusting rods, and a connecting mechanism is arranged between the two sets of connecting rods, so that the two sets of connecting rods are fixedly arranged with each other through the connecting mechanism.

[0016] Optionally, the connecting mechanism comprises a fastening lead screw and a connecting sleeve, the fastening lead screw is fixedly connected with one set of connecting rods, one end of the fastening lead screw is rotationally connected with the other set of connecting rods, one end of the connecting sleeve is fixedly installed with a threaded sleeve, the connecting sleeve is slidingly sleeved on the exterior of the other set of connecting rods, and the exterior of the fastening lead screw is threadedly connected with the interior of the threaded sleeve.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The design of the accommodating cavity in the interior can realize the easy integration of the console and the control cabinet, and solves the shortcomings of the split type carrying.

[0019] 2. The design of the line arrangement assembly can wind and accommodate the lines used between the controller and the console, realize the separation of different lines, effectively avoid the winding of different lines, and affect the daily maintenance.

[0020] 3. Meanwhile, the mutual cooperation of the separating component and the plurality of separating plates can adjust the line storage area according to the specifications and lengths of different lines, thereby further improving the practicability of the control device.

[0021] 4. By the design that the connecting rod is arranged between the front cover plate and the console, when the front cover plate is turned and opened, the console can be slid out partly through the connecting rod, so that the console is conveniently slid out for use by the staff.

[0022] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure provided by the present application;

[0024] Figure 2 is a schematic diagram of the console provided by the present application;

[0025] Figure 3 is a schematic diagram of the connecting rod provided by the present application;

[0026] Figure 4 is a schematic diagram of the positioning shell provided by the present application;

[0027] Figure 5 is a schematic diagram of the partition plate provided by the present application;

[0028] Figure 6 is a schematic diagram of the winding wheel provided by the present application;

[0029] Figure 7 is a schematic diagram of the Figure 6 enlarged view of A of the present application;

[0030] Figure 8 is a schematic diagram of the fastening screw rod provided by the present application;

[0031] Figure 9 is a schematic diagram of the adjusting screw rod provided by the present application;

[0032] Figure 10 is a schematic diagram of the driven gear provided by the present application.

[0033] In the diagram: 1. Control cabinet; 2. Controller; 3. Control console; 4. Front cover; 5. Wiring arrangement assembly; 6. Rear cover; 7. Sliding support plate; 8. Connecting rod; 9. Cable inlet; 10. Positioning plate; 11. Driven gear; 12. Gear plate; 13. Fixing rod; 501. Positioning housing; 502. First cable tray; 503. Linkage component; 5031. Connecting rod; 5032. Connecting sleeve; 5033. Fastening screw; 5034. Threaded sleeve; 504. Second cable tray; 505. Separator component; 5051. Adjusting rod; 5052. Adjusting screw; 5053. Concave linkage rod; 5054. First gear; 5055. Second gear; 5056. Third gear; 506. Rewinding wheel; 507. Separator plate; 801. Sliding housing; 802. Extension plate; 803. Connecting seat. Detailed Implementation

[0034] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0035] like Figures 1 to 9 As shown, the present invention provides a production process control device using FF bus and electronic wiring composite technology, comprising: a control cabinet 1, a controller 2 and a control console 3. The upper end of one side of the control cabinet 1 is provided with a placement cavity, and the controller 2 is disposed inside the placement cavity. The lower end of one side of the control cabinet 1 is provided with a storage cavity, and the control console 3 is slidably installed inside the storage cavity. The controller 2 and the control console 3 are electrically connected by a line.

[0036] like Figures 1 to 9 As shown, the lower end of one side of the control cabinet 1 has a storage cavity, and the control console 3 is slidably installed inside the storage cavity, which solves the problem of carrying and transporting the split control device used in the traditional FF bus and electronic wiring composite technology.

[0037] The cable management component 5 has a cable inlet hole 9 that is interconnected between the placement cavity and the storage cavity. The cable management component 5 includes two sets of positioning shells 501, a linkage component 503, and two sets of separating components 505. The positioning shells 501 are internally connected to the cable inlet hole 9. The separating components 505 are paired with the positioning shells 501. A winding wheel 506 is rotatably connected inside the positioning shells 501. Multiple sets of separating plates 507 are slidably sleeved on the outside of the winding wheel 506. The separating components 505 are located inside the winding wheel 506, and the multiple sets of separating plates 507 are all connected to the separating components 505 through a transmission. Thus, the multiple sets of separating plates 507 are arranged to be far apart or close together through the separating components 505. The linkage component 503 is located between the two sets of separating components 505, and the two sets of separating components 505 are fixed to each other through the linkage component 503.

[0038] like Figures 1 to 9As shown, due to the design that multiple groups of partition plates 507 are arranged away from or close to each other through the partition component 505, the space for winding the wire by the winding wheel 506 is divided into multiple areas by the partition plates 507, and the size of the multiple areas can be adjusted at will, so that the optimal winding area can be adjusted according to the wire, thereby effectively improving the practicability of the wire arrangement assembly 5.

[0039] Further, the lower end of one side of the control cabinet 1 is rotatably connected with a front cover plate 4, the lower end of the other side of the control cabinet 1 is detachably connected with a rear cover plate 6, both ends of one side of the front cover plate 4 are provided with connecting rods 8, and the two groups of connecting rods 8 are rotatably connected with the console 3; the bottom of the console 3 is provided with a sliding bearing plate 7, and the lower end of the inside of both sides of the receiving cavity is provided with a sliding groove, and the sliding bearing plate 7 is slidingly installed in the sliding groove; the connecting rod 8 is composed of a sliding shell 801 and an extension plate 802, the sliding shell 801 is rotatably connected with the side wall of the console 3, and one end of the sliding shell 801 is provided with a sliding groove, the extension plate 802 is slidingly installed in the sliding groove, one end of the extension plate 802 is fixedly installed with a connecting seat 803, and the connecting seat 803 is fixedly connected with the front cover plate 4;

[0040] As shown, Figures 1 to 9 Through the design that the connecting seat 803 is fixedly connected with the front cover plate 4, when the front cover plate 4 is turned open, the console 3 can be pulled to slide a small distance through the cooperation of the connecting seat 803, the extension plate 802 and the sliding shell 801, and then the console 3 can be pulled out completely for use, so that the use convenience of the console 3 can be effectively improved through the design of the connecting rod 8.

[0041] Further, a plurality of second wire arranging plates 504 are slidingly connected in a plurality of avoiding holes in the upper surface of the positioning shell 501, the second wire arranging plates 504 are hollow for wire insertion, the avoiding holes are arranged in correspondence with the wire inlet hole 9, another group of avoiding holes are arranged in the side of the positioning shell 501 close to the console 3, and a plurality of first wire arranging plates 502 are slidingly connected in the other group of avoiding holes, the first wire arranging plates 502 are hollow, the first wire arranging plates 502 and the second wire arranging plates 504 are arranged in pairs, the first wire arranging plates 502 are arranged in pairs with the partition plates 507, and the first wire arranging plates 502 and the second wire arranging plates 504 are fixedly connected with the partition plates 507;

[0042] As shown, Figures 1 to 9 Through the design of the first wire arranging plates 502 and the second wire arranging plates 504, the wires connected between the multiple consoles 3 and the controller 2 can be separated, so that different wires can be effectively prevented from being entangled with each other, which affects the subsequent maintenance or replacement of the wires by the workers.

[0043] Further, the separating component 505 comprises a plurality of sets of adjusting lead screws 5052, the adjusting lead screws 5052 are arranged in pairs with the separating plates 507, the inside of the winding wheel 506 is provided with adjusting grooves, the plurality of sets of adjusting lead screws 5052 are all rotationally installed in the adjusting grooves, and the outer sides of the plurality of sets of adjusting lead screws 5052 are all connected with concave linkage rods 5053 through threads, the concave linkage rods 5053 pass through the inside of the adjusting grooves to the outer side of the winding wheel 506 at both ends, and the concave linkage rods 5053 are fixedly connected with the separating plates 507; one end of the two adjacent sets of adjusting rods 5051 is fixedly installed with a first gear 5054 and a third gear 5056 respectively, the upper surface of the first gear 5054 is connected with another set of first gears 5054 in meshing mode, one side of the other set of first gears 5054 is fixedly installed with a second gear 5055, the second gear 5055 is connected with the third gear 5056 in meshing mode, and the first gear 5054 and the third gear 5056 are fixedly installed with a positioning plate 10, and the positioning plate 10 is fixed;

[0044] As shown in Figure 9 , it should be noted that the first gears 5054, the second gears 5055 and the third gears 5056 used at both ends of the adjusting lead screws 5052 located in the middle adopt different gear ratios for use, so that the rotation of one set of adjusting lead screws 5052 can realize different rotation speeds of the remaining two sets of adjusting lead screws 5052 through the principle of gear ratio, so as to realize the equal-distance variable-distance movement of the plurality of separating plates 507.

[0045] Further, the separating component 505 further comprises an adjusting rod 5051, one end of the positioning shell 501 is provided with a through hole, one end of the winding wheel 506 is provided with another set of through holes in communication with the adjusting grooves, and the two sets of through holes are arranged in correspondence, one end of the adjusting rod 5051 passes through the inside of the two sets of through holes to the inside of the adjusting grooves in sequence, and one end of the adjusting rod 5051 is fixedly connected with one set of adjusting lead screws 5052;

[0046] As shown in Figures 1 to 9 , through the design that one end of the adjusting rod 5051 is fixedly connected with one set of adjusting lead screws 5052, the adjusting rod 5051 can drive one set of adjusting lead screws 5052 to realize the equal-distance movement of the plurality of separating plates 507.

[0047] Furthermore, the linkage component 503 includes two sets of connecting rods 5031, which are fixedly connected to the adjusting rod 5051. A connecting mechanism is provided between the two sets of connecting rods 5031, so that the two sets of connecting rods 5031 are fixedly arranged to each other through the connecting mechanism. The connecting mechanism includes a fastening screw 5033 and a connecting sleeve 5032. The fastening screw 5033 is fixedly connected to one set of connecting rods 5031, and one end of the fastening screw 5033 is rotatably connected to the other set of connecting rods 5031. A threaded sleeve 5034 is fixedly installed on one end of the connecting sleeve 5032. The connecting sleeve 5032 is slidably sleeved on the outside of the other set of connecting rods 5031. The outside of the fastening screw 5033 is threadedly connected to the inside of the threaded sleeve 5034.

[0048] like Figures 1 to 9 As shown, through the design of the fastening screw 5033 being threadedly connected to the threaded sleeve 5034, the two sets of adjusting rods 5051 located at both ends inside the storage cavity can be rotated synchronously by simply rotating one set of adjusting rods 5051, thanks to the cooperation of the fastening screw 5033 and the threaded sleeve 5034. This allows for quick adjustment of the positions of multiple partition plates 507 when the lines inserted inside the two sets of inlet holes 9 are consistent.

[0049] Specifically, such as Figure 10 As shown, the other end of the winding wheel 506 is fixedly connected to a driven gear 11, and the driven gear 11 is rotatably installed inside the storage cavity. The bottom of the driven gear 11 is meshed with a toothed plate 12, and the toothed plate 12 is slidably installed inside the storage cavity. One end of the toothed plate 12 is fixedly installed with a fixing rod 13, and one end of the fixing rod 13 is fixedly connected to the sliding bearing plate 7.

[0050] The design of the driven gear 11, toothed plate 12 and fixed rod 13 described above enables the control console 3 to drive the winding wheel 506 to rotate when it is slid out for use, thus enabling the unwinding of the line. Conversely, when the control console 3 slides into the storage cavity, it enables the winding of the line.

[0051] It should be noted that when the take-up reel 506 takes up the wiring used between the controller 2 and the control console 3, it is necessary to ensure that there is a certain amount of wiring remaining in the second cable tray 504, so as to prevent the take-up reel 506 from pulling down the wiring connected to the controller 2 when it releases the wiring.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production process control device using an FF bus and electronic wiring composite technology, characterized by: Include: Control cabinet (1), controller (2) and control console (3), the upper end of one side of the control cabinet (1) is provided with a placing cavity, and the controller (2) is arranged in the placing cavity, the lower end of one side of the control cabinet (1) is provided with a storage cavity, the control console (3) is slidably installed in the storage cavity, the controller (2) and the control console (3) are electrically connected by lines; The line arrangement assembly (5) is arranged between the placing cavity and the storage cavity, and the line arrangement assembly (5) includes two groups of positioning shells (501), linkage components (503) and two groups of separation components (505), the positioning shell (501) is communicated with the inside of the wire inlet hole (9), the separation component (505) is arranged in pairs with the positioning shell (501), the winding wheel (506) is rotatably connected in the positioning shell (501), a plurality of separation plates (507) are slidably sleeved on the outer side of the winding wheel (506), the separation component (505) is arranged in the winding wheel (506), and a plurality of separation plates (507) are all in driving connection with the separation component (505), so that a plurality of separation plates (507) are arranged away from or close to each other through the separation component (505), the linkage component (503) is arranged between the two groups of separation components (505), and the two groups of separation components (505) are fixedly arranged through the linkage component (503).

2. The production process control device using FF bus and electronic wiring complex technology according to claim 1, characterized by: The lower end of one side of the control cabinet (1) is rotatably connected with the front cover plate (4), the lower end of the other side of the control cabinet (1) is detachably connected with the rear cover plate (6), both ends of one side of the front cover plate (4) are provided with connecting rods (8), and the two connecting rods (8) are rotatably connected with the control console (3).

3. The production process control device using FF bus and electronic wiring complex technology according to claim 2, wherein: The bottom of the control console (3) is provided with a sliding bearing plate (7), the lower end of both sides of the storage cavity is provided with a sliding groove, and the sliding bearing plate (7) is slidably installed in the sliding groove.

4. The production process control device using FF bus and electronic wiring complex technology according to claim 3, wherein: The connecting rod (8) is composed of a sliding shell (801) and an extension plate (802), the sliding shell (801) is rotatably connected with the side wall of the control console (3), one end of the sliding shell (801) is provided with a sliding groove, the extension plate (802) is slidably installed in the sliding groove, one end of the extension plate (802) is fixedly installed with a connecting seat (803), and the connecting seat (803) is fixedly connected with the front cover plate (4).

5. The process control device using FF bus and electronic wiring complex technology according to claim 1, wherein: The positioning shell (501) upper surface is provided with a relief hole, a plurality of second wire arrangement plates (504) are slidably connected in the relief hole, the second wire arrangement plates (504) are hollowly arranged and used for wire insertion, the relief hole is arranged in correspondence with the wire inlet hole (9), another group of relief holes are arranged on the side of the positioning shell (501) close to the console (3), a plurality of first wire arrangement plates (502) are slidably connected in the other group of relief holes, the first wire arrangement plates (502) are hollowly arranged, the first wire arrangement plates (502) and the second wire arrangement plates (504) are arranged in pairs, the first wire arrangement plates (502) are arranged in pairs with the partition plates (507), and the first wire arrangement plates (502) and the second wire arrangement plates (504) are fixedly connected with the partition plates (507).

6. The production process control device using FF bus and electronic wiring complex technology according to claim 5, wherein: The partition component (505) comprises a plurality of adjusting lead screws (5052), the adjusting lead screws (5052) are arranged in pairs with the partition plates (507), the adjusting grooves are formed in the inside of the winding wheels (506), the plurality of adjusting lead screws (5052) are rotatably installed in the adjusting grooves, and the outer sides of the plurality of adjusting lead screws (5052) are threadedly connected with concave linkage rods (5053), the two ends of the concave linkage rods (5053) penetrate through the inside of the adjusting grooves to the outside of the winding wheels (506), and the concave linkage rods (5053) are fixedly connected with the partition plates (507).

7. The process control device using FF bus and electronic wiring complex technology according to claim 6, wherein: The first gear (5054) and the third gear (5056) are fixedly installed at the one ends of the two adjacent groups of adjusting rods (5051), the upper surface of the first gear (5054) is meshedly connected with another group of first gears (5054), the second gear (5055) is fixedly installed at the one side of the middle of another group of the first gears (5054), the second gear (5055) is meshedly connected with the third gear (5056), and the first gear (5054) and the third gear (5056) are fixedly installed with the positioning plate (10).

8. The production process control device using FF bus and electronic wiring complex technology according to claim 7, wherein: The partition component (505) further comprises an adjusting rod (5051), a through hole is formed at one end of the positioning shell (501), another group of through holes are formed at one end of the winding wheel (506) and in communication with the adjusting grooves, and the two groups of through holes are arranged in correspondence, one end of the adjusting rod (5051) penetrates through the inside of the two groups of through holes to the inside of the adjusting grooves in sequence, and one end of the adjusting rod (5051) is fixedly connected with one group of adjusting lead screws (5052).

9. The process control device using FF bus and electronic wiring complex technology according to claim 8, wherein: The linkage component (503) comprises two groups of connecting rods (5031), the connecting rods (5031) are fixedly connected with the adjusting rods (5051), and a connecting mechanism is arranged between the two groups of connecting rods (5031), so that the two groups of connecting rods (5031) are fixedly arranged with each other through the connecting mechanism.

10. The process control device using FF bus and electronic wiring complex technology according to claim 9, wherein: The connecting mechanism comprises a fastening screw rod (5033) and a connecting sleeve (5032), one group of connecting rods (5031) is fixedly connected with the fastening screw rod (5033), one end of the fastening screw rod (5033) is rotationally connected with the other group of connecting rods (5031), and one end of the connecting sleeve (5032) is fixedly installed with a threaded sleeve (5034); the connecting sleeve (5032) is slidably sleeved outside the other group of connecting rods (5031); and the outer side of the fastening screw rod (5033) is in threaded connection with the inner side of the threaded sleeve (5034).

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