A preformed three-span reinforced strain clamp

Abstract

The present application provides a pre-twisted three-span reinforced strain clamp, which relates to the technology of overhead line equipment and includes a DB adjusting plate, a connection component arranged on the DB adjusting plate, and a traction component arranged on the connection component. A load component is also arranged on the DB adjusting plate, and a fixing component is arranged inside the traction component. By setting the connection component, the traction component, the fixing component and the locking component, the present application realizes the fixation of the wire, can effectively avoid the falling of the wire end when the load component breaks, thereby effectively avoiding the occurrence of safety accidents caused by the contact between the end and objects or personnel. At the same time, since there is still a traction force on the wire after the wire breaks, it is more convenient for the staff to carry out overhead connection, solving the problem that in the prior art, due to the large tension of the overhead wire itself and the long-term influence of micro-vibration or icing, it is very easy for the wire to fatigue and break or even break at the outlet of the compression strain clamp.

Description

Technical Field

[0001] The present invention relates to the technical field of overhead line equipment, and more particularly, to a preformed three-span reinforced strain clamp. Background Art

[0002] When erecting a transmission line, a compression strain clamp is required at the connection between the conductor and the tower.

[0003] However, due to the large tension of the overhead conductor itself in the prior art and the long-term influence of micro-vibration or icing, it is very easy for the conductor to have fatigue strand breakage or even fracture accidents at the outlet of the compression strain clamp, which seriously affects the service life of the overhead line and causes power outage accidents. If there are high-speed railways or other important building facilities below the overhead conductor, once the conductor breaks, it will cause major injury accidents.

[0004] Therefore, we make improvements in this regard and propose a preformed three-span reinforced strain clamp. Summary of the Invention

[0005] The purpose of the present invention is to provide a preformed three-span reinforced strain clamp, by setting the problems that in the prior art, due to the large tension of the overhead conductor itself and the long-term influence of micro-vibration or icing, it is very easy for the conductor to have fatigue strand breakage or even fracture accidents at the outlet of the compression strain clamp, which seriously affects the service life of the overhead line and causes power outage accidents. If there are high-speed railways or other important building facilities below the overhead conductor, once the conductor breaks, it will cause major injury accidents.

[0006] In order to achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0007] A preformed three-span reinforced strain clamp, including a DB adjusting plate, a connection assembly arranged on the DB adjusting plate, and a traction assembly arranged on the connection assembly. A load assembly is also arranged on the DB adjusting plate;

[0008] A fixing assembly is arranged inside the traction assembly, and a locking assembly is arranged on the fixing assembly.

[0009] As a preferred technical solution of the present application, positioning holes are formed on the DB adjusting plate, the number of the positioning holes is three, and the three positioning holes are evenly and equidistantly distributed at the edge of the DB adjusting plate. The connection assembly includes a right-angle hanging plate movably clamped on the DB adjusting plate. The right-angle hanging plate is aligned with the positioning holes and is movably connected with positioning bolts.

[0010] As a preferred technical solution of the present application, one side of the right-angle hanger plate is movably clamped with a connecting plate and fixedly connected by bolts. At two corners on one side of the connecting plate, U-shaped rings are respectively clamped. An extension pull rod is sleeved on the U-shaped ring. One end of the extension pull rod penetrates and is clamped with a pull plate and fixed by a nut. One side of the pull plate is fixedly connected with a connecting plate. A limiting hole is opened at one end of the connecting plate, and a housing is movably clamped through the limiting hole.

[0011] As a preferred technical solution of the present application, the traction assembly includes a lower composite plate arranged inside the housing. An upper composite plate is arranged above the lower composite plate. One end of the lower composite plate is fixedly connected with a connecting frame. A driving wheel is movably clamped on the connecting frame. Between the lower composite plate and the upper composite plate and simultaneously located on the driving wheel, the same wire is movably clamped.

[0012] As a preferred technical solution of the present application, the load assembly includes a U-shaped hanging ring movably clamped on the DB adjusting plate and fixedly connected by bolts. One end of the U-shaped hanging ring is movably clamped with a strain clamp. One end of the strain clamp is fixedly connected with a wire. One end of the wire penetrates between the lower composite plate and the upper composite plate and is simultaneously connected to the housing.

[0013] As a preferred technical solution of the present application, the fixing assembly includes a combination piece fixedly connected to both sides of the inner top wall and the inner bottom wall of the housing. On both sides of each combination piece, a limiting piece is clamped. Through holes are opened at the clamping positions of each group of the combination piece and the limiting piece. The combination piece and the limiting piece are movably clamped with a sleeve through the through holes. The sleeves are divided into two in each group. On one side of each group of sleeves, a clamping pipe is movably clamped. At the ends of each group of the sleeves and the clamping pipes away from each other, a linkage plate is fixedly connected. The bottom of the limiting piece is fixedly connected to the lower surface of the lower composite plate / the upper surface of the upper composite plate.

[0014] As a preferred technical solution of the present application, the locking assembly includes a bearing piece fixedly connected to both sides of the lower composite plate and the upper composite plate. On the upper surface of the bearing piece located on the lower composite plate, locking columns are fixedly connected. Meshing teeth are opened on both sides of the outer arc surface of the locking column. A hole adapted to the locking column is opened on the bearing piece located on the upper composite plate.

[0015] As a preferred technical solution of the present application, the locking assembly further includes a sleeve fixedly connected to the upper surface of the bearing piece. Installation grooves are opened on both sides of the inner arc surface of the sleeve. One end of a transmission piece penetrates and is clamped in the inner side wall of one side of the installation groove. One end of the transmission piece is fixedly connected with a blocking plate. A tooth block is fixedly connected to the middle of one side surface of the blocking plate. The tooth Block meshes with the locking column through the meshing teeth.

[0016] As a preferred technical solution of the present application, a spring is fixedly installed on the inner side wall of the installation groove and one side of the partition plate. The spring is sleeved on the transmission member, and a reinforcing member is movably clamped at one end of the transmission member. Clamping grooves are formed on both sides of the outer arc surface of the sleeve, and the clamping grooves are adapted to the reinforcing member.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In the solution of the present application:

[0019] 1. By setting the connection component, the traction component, the fixing component and the locking component, the fixing of the wire is realized, which can effectively prevent the end of the wire from falling when the load component breaks, thus effectively avoiding the occurrence of safety accidents caused by the contact between the end and objects or personnel. At the same time, since there is still a traction force on the wire after it breaks, it is more convenient for the staff to carry out overhead connection, solving the problems in the prior art that due to the large tension of the overhead wire itself and the long-term influence of micro-vibration or icing, the wire is very easy to fatigue and break or even break at the outlet of the compression strain clamp, which seriously affects the service life of the overhead line and causes power outages. If there are high-speed rails or other important building facilities under the overhead wire, once the wire breaks, it will cause major injury accidents;

[0020] 2. By setting the load component, the traction of the wire is realized, thus ensuring the stability of the wire and avoiding the wire torsion caused by micro-vibration, which in turn generates a rotational force and affects the normal service life of the wire, solving the problem in the prior art that due to the large tension of the overhead wire itself and the long-term influence of micro-vibration or icing, the wire is extremely easy to twist, which in turn generates a rotational force and affects the normal service life of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the overall structural schematic diagrams of a pre-twisted three-span reinforced strain clamp provided by the present application;

[0022] Figure 2 Two of the overall structural schematic diagrams of a pre-twisted three-span reinforced strain clamp provided by the present application;

[0023] Figure 3 Partial disassembled structural schematic diagram of a pre-twisted three-span reinforced strain clamp provided by the present application;

[0024] Figure 4 Structural schematic diagram inside the housing of a pre-twisted three-span reinforced strain clamp provided by the present application;

[0025] Figure 5Schematic cross-sectional structure diagram of a pre-twisted three-span reinforced strain clamp housing provided by this application;

[0026] Figure 6 Schematic disassembled structure diagram of a fixed component of a pre-twisted three-span reinforced strain clamp provided by this application;

[0027] Figure 7 Schematic disassembled structure diagram of a sleeve and a locking column of a pre-twisted three-span reinforced strain clamp provided by this application;

[0028] Figure 8 Schematic cross-sectional structure diagram of a sleeve of a pre-twisted three-span reinforced strain clamp provided by this application.

[0029] Labels in the figure:

[0030] 1. DB adjustment plate;

[0031] 2. Connection component; 21. Right-angle hanging plate; 22. Coupling plate; 23. U-shaped ring; 24. Extension pull rod; 25. Pulling plate; 26. Connection plate; 27. Housing;

[0032] 3. Traction component; 31. Lower combined plate; 32. Upper combined plate; 33. Connection frame; 34. Driving wheel;

[0033] 4. Load component; 41. U-shaped hanging ring; 42. Strain clamp; 43. Conductor;

[0034] 5. Fixed component; 51. Assembly; 52. Limiting part; 53. Through hole; 54. Clamping pipe; 55. Linking plate; 56. Sleeve;

[0035] 6. Locking component; 61. Bearing part; 62. Locking column; 63. Meshing teeth; 64. Hole; 65. Sleeve; 66. Installation groove; 67. Transmission part; 68. Partition board; 69. Tooth block; 610. Spring; 611. Reinforcement part; 612. Clamping groove;

[0036] 7. Positioning hole. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention.

[0038] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed present invention, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0039] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0040] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0042] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a preformed three-span reinforced strain clamp.

[0043] Embodiment 1:

[0044] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , this embodiment proposes a preformed three-span reinforced strain clamp, including a DB adjusting plate 1, a connecting component 2 provided on the DB adjusting plate 1, and a traction component 3 provided on the connecting component 2. A load component 4 is further provided on the DB adjusting plate 1. A fixing component 5 is provided inside the traction component 3, and a locking component 6 is provided on the fixing component 5.

[0045] Embodiment 2:

[0046] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, as a preferred embodiment, on the basis of the above method, further, positioning holes 7 are formed in the DB adjustment plate 1. The number of the positioning holes 7 is three, and the three positioning holes 7 are evenly and equidistantly distributed at the edge of the DB adjustment plate 1. The connecting component 2 includes a right-angle hanging plate 21 movably clamped on the DB adjustment plate 1. The right-angle hanging plate 21 is aligned with the positioning holes 7 and is movably connected with positioning bolts. One side of the right-angle hanging plate 21 is movably clamped with a connecting plate 22 and is fixedly connected by bolts. At two corners on one side of the connecting plate 22, U-shaped rings 23 are respectively clamped. An extension pull rod 24 is sleeved on the U-shaped ring 23. One end of the extension pull rod 24 penetrates and is clamped with a pull plate 25 and is fixed by a nut. One side of the pull plate 25 is fixedly connected with a connecting plate 26. A limiting hole is formed at one end of the connecting plate 26, and a housing 27 is movably clamped through the limiting hole.

[0047] Exemplarily, the staff clamps the right-angle hanging plate 21 on the DB adjustment plate 1, and then installs the positioning bolts in the positioning holes 7. At this time, the fixation of the right-angle hanging plate 21 can be completed. Then, the connecting plate 22 is installed on the right-angle hanging plate 21 through bolts. At this time, the extension pull rod 24 is sleeved on the U-shaped ring 23, and then the U-shaped ring 23 is clamped on the connecting plate 22. At this time, the U-shaped ring 23 is fixed by bolts. Then, the extension pull rod 24 is passed through the pull plate 25, and the extension pull rod 24 is fixed by a nut. At this time, the housing 27 with the wires fixed can be pulled and suspended.

[0048] Embodiment 3:

[0049] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, as a preferred embodiment, on the basis of the above method, further, the traction component 3 includes a lower combined plate 31 arranged inside the housing 27. An upper combined plate 32 is arranged above the lower combined plate 31. One end of the lower combined plate 31 is fixedly connected with a connecting frame 33. A driving wheel 34 is movably clamped on the connecting frame 33. Between the lower combined plate 31 and the upper combined plate 32 and simultaneously on the driving wheel 34, the same wire 43 is movably clamped.

[0050] Exemplarily, the staff passes the wire between the lower combined plate 31 and the upper combined plate 32, and then the fixation and clamping of the wire can be completed through the locking component 6. At the same time, the driving wheel 34 covers the bottom of the outer arc surface of the wire;

[0051] When the staff selects the position to fix the wire, only by moving the connecting frame 33, the driving wheel 34 can be moved, and then the position of the lower combined plate 31 can be moved.

[0052] Embodiment 4:

[0053] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 shown, as a preferred embodiment, on the basis of the above method, further, the load component 4 includes a U-shaped hanging ring 41 movably clamped on the DB adjusting plate 1 and is fixedly connected by bolts. One end of the U-shaped hanging ring 41 is movably clamped with a strain clamp 42. One end of the strain clamp 42 is fixedly connected with a wire 43. One end of the wire 43 is disposed through between the lower composite plate 31 and the upper composite plate 32 and is simultaneously connected through the housing 27.

[0054] Exemplarily, the staff clamps the strain clamp 42 fixing the wire 43 on the U-shaped hanging ring 41, and then the U-shaped hanging ring 41 can be fixed by bolts, thereby completing the suspended traction of the wire 43.

[0055] Example 5:

[0056] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 shown, as a preferred embodiment, on the basis of the above method, further, the fixing component 5 includes a combination 51 fixedly connected to both sides of the inner top wall and the inner bottom wall of the housing 27. Both sides of each combination 51 are clamped with a restricting member 52. A through hole 53 is provided at the clamping position of each combination 51 and the restricting member 52. The combination 51 and the restricting member 52 are movably clamped with a sleeve 56 through the through hole 53. The sleeves 56 are divided into two groups. One side of each group of sleeves 56 is movably clamped with a clamping tube 54. One end of each group of sleeves 56 and the clamping tube 54 away from each other is fixedly connected with a linkage plate 55. The bottom of the restricting member 52 is fixedly connected to the lower surface of the lower composite plate 31 / the upper surface of the upper composite plate 32.

[0057] Exemplarily, the staff places the lower composite plate 31 and the upper composite plate 32 connected with the wire 43 inside the housing 27, and makes the combination 51 clamped inside the restricting member 52 on the lower composite plate 31 and the upper composite plate 32. Then, the sleeve 56 is inserted into the through hole 53 located on the combination 51 and the restricting member 52, and the clamping tube 54 is clamped inside the sleeve 56, thereby forming a fixation.

[0058] Example 6:

[0059] As Figure 1 ,Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , as a preferred embodiment, on the basis of the above method, further, the locking assembly 6 includes a carrier 61 fixedly connected to both sides of the lower clamping plate 31 and the upper clamping plate 32. On the upper surface of the carrier 61 located on the lower clamping plate 31, locking columns 62 are fixedly connected. On both sides of the outer arc surface of the locking column 62, engaging teeth 63 are provided. The carrier 61 located on the upper clamping plate 32 is provided with holes 64 adapted to the locking columns 62. The locking assembly 6 further includes a sleeve 65 fixedly connected to the upper surface of the carrier 61 located on the upper clamping plate 32. On both sides of the inner arc surface of the sleeve 65, installation grooves 66 are provided. One side inner wall of the installation groove 66 is penetrated and clamped with a transmission member 67. One end of the transmission member 67 is fixedly connected with a blocking plate 68. In the middle of one side surface of the blocking plate 68, a tooth block 69 is fixedly connected. The tooth block 69 is engaged with the locking column 62 through the engaging teeth 63. A spring 610 is fixedly installed on the inner side wall of the installation groove 66 and one side of the blocking plate 68. The spring 610 is sleeved on the transmission member 67. One end of the transmission member 67 is movably clamped with a reinforcement member 611. On both sides of the outer arc surface of the sleeve 65, clamping grooves 612 are provided. The clamping grooves 612 are adapted to the reinforcement member 611.

[0060] Exemplarily, the staff presses the upper clamping plate 32 and the lower clamping plate 31 together and aligns the locking column 62 with the sleeve 65. During the pressing process, the engaging teeth 63 on the locking column 62 sequentially enter the inside of the sleeve 65 and are sequentially clamped with the tooth block 69. When pressed to the bottom, the reinforcement member 611 is rotated, so that the reinforcement member 611 is clamped inside the clamping groove 612. During this process, the tooth block 69 is restricted by the concavity and convexity of the engaging teeth 63 and continuously moves back and forth slightly to the left and right. At this time, the tooth block 69 drives the transmission member 67 to move synchronously and squeezes the tooth block spring 610. After the reinforcement member 611 is fixed, the tooth block 69 cannot continue to move back and forth slightly to the left and right, thus completing the fixation of the tooth block 69.

[0061] Embodiment 7:

[0062] The following further introduces the solutions in the above embodiments in combination with specific working methods, as detailed in the following description:

[0063] Specifically, when this preformed three-span reinforced strain clamp is working / being used:

[0064] The staff snaps the right-angle hanger 21 onto the DB adjusting plate 1, then installs the positioning bolt in the positioning hole 7. At this time, the fixation of the right-angle hanger 21 is completed. Subsequently, the connecting plate 22 is installed on the right-angle hanger 21 through bolts. At this time, the extension rod 24 is sleeved on the U-shaped ring 23, and then the U-shaped ring 23 is snapped onto the connecting plate 22. At this time, the U-shaped ring 23 is fixed through bolts. Then the extension rod 24 is passed through the pull plate 25, and the extension rod 24 is fixed through nuts. At this time, the housing 27 with the wire fixed can be towed and suspended. The staff passes the wire through between the lower closing plate 31 and the upper closing plate 32, and then the fixation and clamping of the wire can be completed through the locking assembly 6. At the same time, the driving wheel 34 covers the bottom of the outer arc surface of the wire. When the staff selects the position to fix the wire, just by moving the connecting frame 33, the driving wheel 34 can be moved, and then the position of the lower closing plate 31 can be moved. The staff snaps the strain clamp 42 with the wire 43 fixed onto the U-shaped hanging ring 41, and then the U-shaped hanging ring 41 is fixed through bolts, and then the suspension traction of the wire 43 is completed. The staff places the lower closing plate 31 and the upper closing plate 32 connected with the wire 43 inside the housing 27, and makes the assembly 51 snap into the limiting part 52 on the lower closing plate 31 and the upper closing plate 32. Then the sleeve 56 is inserted into the through hole 53 located on the assembly 51 and the limiting part 52, and the clamping tube 54 is snapped into the sleeve 56 to form a fixation. The staff presses the upper closing plate 32 and the lower closing plate 31 together, and makes the locking column 62 align with the sleeve 65. During the pressing process, the meshing teeth 63 on the locking column 62 successively enter the sleeve 65 and are successively snapped with the tooth block 69. Until it is pressed to the bottom, the reinforcing part 611 is rotated, so that the reinforcing part 611 is snapped into the clamping groove 612. During this process, the tooth block 69 is restricted by the convex and concave of the meshing teeth 63 and continuously moves back and forth slightly left and right. At this time, the tooth block 69 drives the transmission part 67 to move synchronously and squeezes the spring 610. After the reinforcing part 611 is fixed, the tooth block 69 cannot continue to move back and forth slightly left and right, thus completing the fixation of the tooth block 69.

[0065] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A preformed three-span reinforced strain clamp, characterized in that, It includes a DB adjustment plate (1), a connection component (2) arranged on the DB adjustment plate (1), and a traction component (3) arranged on the connection component (2). A load component (4) is also arranged on the DB adjustment plate (1). A fixing component (5) is arranged inside the traction component (3), and a locking component (6) is arranged on the fixing component (5). Positioning holes (7) are formed in the DB adjustment plate (1). The number of the positioning holes (7) is three, and the three positioning holes (7) are evenly and equidistantly distributed at the edge of the DB adjustment plate (1). The connection component (2) includes a right-angle hanging plate (21) movably clamped on the DB adjustment plate (1). The right-angle hanging plate (21) is aligned with the positioning holes (7) and is movably connected with positioning bolts. A connecting plate (22) is movably clamped on one side of the right-angle hanging plate (21) and is fixedly connected by bolts. U-shaped rings (23) are respectively clamped at two corners on one side of the connecting plate (22). An extension pull rod (24) is sleeved on the U-shaped rings (23). One end of the extension pull rod (24) is penetrated and clamped with a pull plate (25) and is fixed by a nut. A connecting plate (26) is fixedly connected to one side of the pull plate (25). A limiting hole is formed at one end of the connecting plate (26), and a housing (27) is movably clamped through the limiting hole. The traction component (3) includes a lower combined plate (31) arranged inside the housing (27). An upper combined plate (32) is arranged above the lower combined plate (31). A connecting frame (33) is fixedly connected to one end of the lower combined plate (31). A driving wheel (34) is movably clamped on the connecting frame (33). Between the lower combined plate (31) and the upper combined plate (32) and simultaneously on the driving wheel (34), the same wire (43) is movably clamped. The fixing component (5) includes a combined component (51) fixedly connected to both sides of the inner top wall and the inner bottom wall inside the housing (27). Limiting components (52) are respectively clamped on both sides of each combined component (51). Through holes (53) are formed at the clamping positions of each group of the combined component (51) and the limiting component (52). The combined component (51) and the limiting component (52) are movably clamped with a sleeve (56) through the through holes (53). The sleeves (56) are divided into two in each group. One side of each group of the sleeves (56) is movably clamped with a clamping pipe (54). Linkage plates (55) are fixedly connected to the ends of each group of the sleeves (56) and the clamping pipes (54) away from each other. The bottom parts of the limiting components (52) are respectively fixedly connected to the lower surface of the lower combined plate (31) / the upper surface of the upper combined plate (32). The locking component (6) includes a bearing member (61) fixedly connected to both sides of the lower combined plate (31) and the upper combined plate (32). On the upper surface of the bearing member (61) located on the lower combined plate (31), locking columns (62) are fixedly connected. On both sides of the outer arc surface of the locking column (62), engaging teeth (63) are provided. A hole (64) adapted to the locking column (62) is provided on the bearing member (61) located on the upper combined plate (32).

2. The preformed three-span reinforced strain clamp according to claim 1, wherein The load component (4) includes a U-shaped hanging ring (41) movably clamped on the DB adjusting plate (1) and fixedly connected by bolts. One end of the U-shaped hanging ring (41) is movably clamped with a strain clamp (42). One end of the strain clamp (42) is fixedly connected with a wire (43). One end of the wire (43) penetrates between the lower combined plate (31) and the upper combined plate (32) and is simultaneously connected through the housing (27).

3. The preformed three-span reinforced strain clamp according to claim 2, wherein The locking component (6) further includes a sleeve (65) fixedly connected to the upper surface of the bearing member (61). On both sides of the inner arc surface of the sleeve (65), installation grooves (66) are provided. On one side inner side wall of the installation groove (66), a transmission member (67) is penetrated and clamped. One end of the transmission member (67) is fixedly connected with a blocking plate (68). In the middle of one side surface of the blocking plate (68), a tooth block (69) is fixedly connected. The tooth block (69) is engaged with the locking column (62) through the engaging teeth (63).

4. The preformed three-span reinforced strain clamp according to claim 3, characterized in that, A spring (610) is fixedly installed on the inner side wall of the installation groove (66) and one side of the blocking plate (68). The spring (610) is sleeved on the transmission member (67). One end of the transmission member (67) is movably clamped with a reinforcing member (611). On both sides of the outer arc surface of the sleeve (65), clamping grooves (612) are provided. The clamping grooves (612) are adapted to the reinforcing member (611).

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