Loop sleeve type bolt-free dropper wire clamp

Abstract

The invention relates to an annular sleeve type bolt-free dropper wire clamp. The annular sleeve type bolt-free dropper wire clamp comprises a first wire clamp piece and a second wire clamp piece which are oppositely arranged, wire clamp positioning parts are arranged at the front and rear ends of the first wire clamp piece and the second wire clamp piece, pin shaft holes are formed in the wire clamp positioning parts, all the pin shaft holes of the first wire clamp piece and the second wire clamp piece are communicated, a pin shaft penetrates through the pin shaft holes in a matched mode, and the two ends of the pin shaft are located on the outer sides of the first wire clamp piece and the second wire clamp piece and are provided with limiting structures; the upper part of the first wire clamp is provided with a first C-shaped part, the upper part of the second wire clamp is provided with a second C-shaped part, the opening directions of the first C-shaped part and the second C-shaped part are opposite, and the first C-shaped part and the second C-shaped part are arranged in a stacked mode and jointly define a retaining ring hanging ring; and the lower ends of the first wire clamp piece and the second wire clamp piece jointly form a jaw part. According to the scheme, the heart-shaped retaining ring can be better matched for installation and work, convenient installation is guaranteed, and meanwhile connection is stable and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway catenary devices, and particularly relates to a ring - type bolt - free suspension clamp. Background Art

[0002] A "suspension clamp" is a component of the flexible suspension system of the overhead catenary in electrified railways and rail transit. The existing structure of the suspension clamp, such as the Chinese invention patent with the application publication number CN101445066A, uses a simple bolt - connection method for left - and - right structural parts, which has problems such as time - consuming and laborious installation and safety risks caused by bolt loosening. At present, there are also some bolt - free clamp structures, but usually, the complexity of the structure is relatively high. For example, it requires a limiting structure that needs to be cooperatively engaged, with relatively high machining accuracy and high machining difficulty. And there is still a risk of improper installation when using the snap - lock fixing method. In addition, the installation of the existing suspension clamp on the heart - shaped protective ring and the terminal for the electrical connection wire is also inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a ring - type bolt - free suspension clamp, which solves the problems of time - consuming and laborious installation and safety risks of the existing clamp, realizes a quick installation process, and ensures the stability of the connection.

[0004] According to the technical solution of the present invention, a ring - type bolt - free suspension clamp is provided, which includes a first clamp member and a second clamp member arranged opposite to each other. At the front and rear ends of the first clamp member and the second clamp member, there are provided clamp positioning parts, and the clamp positioning parts are provided with pin holes. All the pin holes of the first clamp member and the second clamp member are penetrated and a pin is inserted in a matching manner. Both ends of the pin are located outside the first clamp member and the second clamp member and have a limiting structure. The upper part of the first clamp member has a first C - shaped part, and the upper part of the second clamp member has a second C - shaped part. The opening directions of the first C - shaped part and the second C - shaped part are opposite, and the first C - shaped part and the second C - shaped part are stacked and jointly form a protective - ring hanging ring. The lower ends of the first clamp member and the second clamp member jointly form a clamping jaw part.

[0005] According to some embodiments, at the position above the pin of the first clamp member, there is provided a first abutting part, and at the position above the pin of the second clamp member, there is provided a second abutting part. The first abutting part abuts against the inner side of the second clamp member, and the second abutting part abuts against the inner side of the first clamp member.

[0006] According to some embodiments, the first abutting part and the first C - shaped part are arranged side by side, and the first abutting part abuts against the lower side of the second C - shaped part; the second abutting part and the second C - shaped part are arranged side by side, and the second abutting part abuts against the lower side of the first C - shaped part.

[0007] According to some embodiments, the position of the first C-shaped part extends to one side of the second wire clamp, and the position of the second C-shaped part extends to one side of the first wire clamp.

[0008] Furthermore, the outer side dimension of the pin shaft matches the inner side dimension of the pin hole; one end of the pin shaft is a pin head, the dimension of the pin head is larger than the pin hole, and the other end of the pin shaft has a limiting part mounting structure for mounting a pin shaft limiting part.

[0009] Preferably, a pin shaft diameter-changing part is also connected to one end of the pin shaft close to the limiting part mounting structure; the outer side dimension of the main body part of the pin shaft diameter-changing part is smaller than the pin hole, and a smooth transition section is formed at the end of the pin shaft diameter-changing part close to the pin shaft.

[0010] According to some embodiments, an electric connection wire connection hole for mounting a terminal for an electric connection wire is provided on the side surface of the first wire clamp and / or the second wire clamp.

[0011] Preferably, the terminal for the electric connection wire is in a cylindrical shape, and the terminal for the electric connection wire is riveted in the electric connection wire connection hole.

[0012] According to some embodiments, one end of the pin shaft has an electric connection wire mounting part, and the electric connection wire mounting part has a locking mechanism for clamping and fixing the electric connection wire.

[0013] Preferably, the electric connection wire mounting part includes that the end of the pin shaft has a first U-shaped groove part, a pressing sleeve is sleeved on the first U-shaped groove part, the first U-shaped groove part and the pressing sleeve are limited by a pin, and a region for clamping the electric connection wire is formed between the pressing sleeve and the first U-shaped groove part;

[0014] Or, the electric connection wire mounting part includes that the end of the pin shaft has a second U-shaped groove part, a pressing cover is mounted on the second U-shaped groove part, an elastic conductive hoop in a "Ω" shape is connected inside the pressing cover, the pressing cover is connected to both ends of the "Ω" shape of the conductive hoop at the outer side end, the circular part of the conductive hoop in a "Ω" shape is located inside the second U-shaped groove part, and a region for clamping the electric connection wire is formed inside the circular part of the conductive hoop in a "Ω" shape;

[0015] Or, the electric connection wire mounting part includes that the end of the pin shaft has a third U-shaped groove part, the outer side surface of the third U-shaped groove part has an external thread and is sleeved with a pressing nut in a matching manner, a limiting gasket in a "Φ" shape is also sleeved on the third U-shaped groove part in a matching manner, the strip-shaped plate in the middle of the "Φ" shape of the limiting gasket is located in the U-shaped groove of the third U-shaped groove part, and a region for clamping the electric connection wire is formed between the strip-shaped plate of the limiting gasket and the third U-shaped groove part; the two ends of the strip-shaped plate in the middle of the "Φ" shape of the limiting gasket protrude from the pressing nut and are bent to fit the side surface of the pressing nut.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0017] 1. The loop-type boltless suspension clamp of the present invention can better cooperate with the heart-shaped protective ring for installation and operation. By using a long pin shaft to tighten two clamp parts so that their upper ends are in contact with each other to form a protective ring hanging ring, it not only ensures convenient installation but also stable and reliable connection.

[0018] 2. The loop-type boltless suspension clamp of the present invention has a concise structure. With a boltless design, it has excellent anti-loosening performance, and at the same time has many advantages such as high strength, high toughness, small weight, long service life, easy debugging, and simple installation. It is preferably processed by sheet metal working method, which has more stable quality, more environmental protection and economies of scale compared with traditional casting and forging processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present invention.

[0020] Figure 2 is a schematic structural diagram of another embodiment of the present invention.

[0021] Figure 3 is a schematic structural diagram of still another embodiment of the present invention.

[0022] Figure 4 is Figure 3 a schematic structural diagram from another angle.

[0023] Figure 5 is a schematic overall structural diagram of the suspension string of an embodiment of the present invention.

[0024] Figure 6 is a schematic structural diagram after installing a wiring terminal for the electric connection wire in an embodiment of the present invention.

[0025] Figure 7 is a schematic structural diagram of the wiring terminal for the electric connection wire in another embodiment of the present invention.

[0026] Figure 8 is Figure 7 a schematic structural diagram after installation of the shown wiring terminal for the electric connection wire.

[0027] Figure 9 is a schematic structural diagram of installing the electric connection wire in still another embodiment of the present invention.

[0028] Figure 10 is a schematic structural diagram of installing the electric connection wire in yet another embodiment of the present invention.

[0029] Figure 11 is a schematic structural diagram of installing the electric connection wire in another embodiment of the present invention.

[0030] Figure 12 is a schematic structural diagram of the stepped pin shaft of an embodiment of the present invention.

[0031] Figure 13 It is a schematic structural diagram of a variable-diameter pin shaft according to another embodiment of the present invention.

[0032] Explanation of the reference numerals in the drawings:

[0033] 1. First wire clamp; 2. Second wire clamp; 3. Wire clamp positioning part; 4. Pin shaft hole; 5. Pin shaft; 6. First C-shaped part; 7. Second C-shaped part; 8. Guard ring hanging ring; 9. Clamping jaw part; 10. Heart-shaped guard ring; 11. First abutting part; 12. Second abutting part; 13. Pin shaft limiting part; 14. Limiting part installation structure; 15. Pin shaft variable diameter part; 16. Pin shaft head; 17. Wiring terminal for electric connection wire; 18. Wire terminal connection hole; 19. Electric connection wire installation part; 20. Electric connection wire; 21. Suspension wire; 22. First U-shaped groove part; 23. Compression sleeve; 24. Pin; 25. Second U-shaped groove part; 26. Pressure cover; 27. Conductive hoop; 28. Third U-shaped groove part; 29. Compression nut; 30. Limiting gasket. Detailed implementation manners

[0034] The present invention provides a loop-type boltless suspension wire clamp, which solves the problems of time-consuming and laborious installation of existing wire clamps and potential safety risks, realizes a quick installation process, and ensures the stability of the connection.

[0035] Please refer to Figure 1 , a loop-type boltless suspension wire clamp according to an embodiment of the present invention includes a first wire clamp 1 and a second wire clamp 2 which are oppositely arranged. Both the front and rear ends of the first wire clamp 1 and the second wire clamp 2 are provided with wire clamp positioning parts 3 extending inwards. The wire clamp positioning parts 3 have pin shaft holes 4. All the pin shaft holes 4 of the first wire clamp 1 and the second wire clamp 2 are communicated with each other, and a pin shaft 5 is inserted therein in a matching manner. Both ends of the pin shaft 5 are located outside the first wire clamp 1 and the second wire clamp 2 and have a limiting structure. This solution is designed such that when the pin shaft 5 is inserted into all the pin shaft holes 4, the first wire clamp 1 and the second wire clamp 2 are tightened together. This assembly method is convenient for installation, eliminates bolts or clamping structures, and can ensure the safety and reliability of the connection at the same time.

[0036] The upper part of the first wire clamp 1 has a first C-shaped part 6, and the upper part of the second wire clamp 2 has a second C-shaped part 7. The opening directions of the first C-shaped part 6 and the second C-shaped part 7 are opposite. The first C-shaped part 6 and the second C-shaped part 7 are stacked together to jointly form a guard ring hanging ring 8 for installing a heart-shaped guard ring 10, and then the suspension wire 21 etc. is connected through the heart-shaped guard ring 10. The lower ends of the first wire clamp 1 and the second wire clamp 2 jointly form a clamping jaw part 9, and the clamping jaw part 9 is used for clamping and installing the carrier cable or contact wire, thereby forming as Figure 5In this solution, when the pin shaft 5 is not installed or not fully installed, the jaw portion 9 can be slightly opened to install the load-bearing wire or contact wire, and then the pin shaft 5 is installed in place, the upper parts of the first wire clamp 1 and the second wire clamp 2 will contact each other, and then the size of the jaw portion 9 is also limited, so that the overall structure of the string clamp remains stable.

[0037] More specifically, in Figure 1 In the illustrated embodiment, the first C-shaped portion 6 is located at the center of the upper portion of the first wire clamp 1, and the second C-shaped portion 7 is located at the center of the upper portion of the second wire clamp 2. The planes where the first C-shaped portion 6 and the second C-shaped portion 7 are located are both parallel to the pin 5 and are vertically arranged, and the first C-shaped portion 6 and the second C-shaped portion 7 are in "face-to-face" conflict. The arcs of the first C-shaped portion 6 and the second C-shaped portion 7 each include more than half of the circumference, and the arcs of the two overlap to form a circular guard ring 8, and there are overlapping and conflicting areas both above and below, so that the conflicting effect and structural strength can be ensured; especially below the formed guard ring 8, the upper portions of the first wire clamp 1 and the second wire clamp 2 both have portions that are close to the inside, thereby forming a stable line contact or surface contact.

[0038] In some further embodiments, Figure 1 Differently, the first wire clamp 1 is provided with a first abutment portion 11 at a position above the pin 5, and the second wire clamp 2 is provided with a second abutment portion 12 at a position above the pin 5. The first abutment portion 11 abuts against the inner side of the second wire clamp 2, and the second abutment portion 12 abuts against the inner side of the first wire clamp 1. This further ensures that the abutment effect of the upper part of the string clamp is stable. For example, Figure 2 In the embodiment shown, the first abutting portion 11 and the first C-shaped portion 6 are arranged side by side, and the first abutting portion 11 abuts below the second C-shaped portion 7; the second abutting portion 12 and the second C-shaped portion 7 are arranged side by side, and the second abutting portion 12 abuts below the first C-shaped portion 6. It is conceivable that in other embodiments, the abutting portion may be optionally arranged directly below the C-shaped portion; Figure 2 As shown in the side-by-side arrangement, it can be obtained by using a single plate through sheet metal processing, which makes production more efficient and cost-effective, and the formed integrated structure is also relatively stable.

[0039] In such Figure 3 , Figure 4 In another embodiment shown, Figure 2 Differently, the first C-shaped portion 6 extends to one side of the second wire clamp 2, and the second C-shaped portion 7 extends to one side of the first wire clamp 1, and the two are "back to back" against each other. In this structure, the abutment portion and the C-shaped portion exert opposite forces on the suspension string clamp, so that the first wire clamp 1 and the second wire clamp 2 form an overlapping locking structure, which helps to obtain a better fixing effect.

[0040] Please refer to Figure 6 and Figure 3 、 Figure 5 , on the side of the first line clamp 1 and / or the second line clamp 2, there is an electrical connection wire connection hole 18 for installing the electrical connection wire 20. For example Figure 6 As shown, it is a relatively conventional setting method. One end of the electrical connection wire of the illustrated structure is connected to the electrical connection wire 20 by a terminal 17 (also known as a "terminal head"), and the other end is connected to the electrical connection wire connection hole 18 by, for example, riveting.

[0041] In the preferred embodiment as shown in Figure 7 、 Figure 8 , the improved electrical connection wire terminal 17 of the present invention is cylindrical. One end of the electrical connection wire terminal 17 is riveted in the electrical connection wire connection hole 18, and the other end of the electrical connection wire terminal 17 is internally connected and fixed to the electrical connection wire 20; more specifically, the part of the electrical connection wire terminal 17 embedded in the electrical connection wire connection hole 18 has a section with a reduced outer diameter, and a step is formed between this section and the rest. The end of the electrical connection wire terminal 17 is connected to the first line clamp 1 / second line clamp 2 by flanging and riveting. This connection method is more stable and tight, and can better ensure the effect of equipotential connection.

[0042] In some other embodiments, the electrical connection wire 20 is installed on the pin shaft 5. One end of the pin shaft 5 (for example, on the pin head 16) has an electrical connection wire installation part 19, and the electrical connection wire installation part 19 has a locking mechanism for clamping and fixing the electrical connection wire 20.

[0043] Specifically, for example, in the structure shown in Figure 9 , its electrical connection wire installation part 19 includes that the end of the pin shaft 5 has a first U-shaped groove part 22, a pressure sleeve 23 is sleeved on the first U-shaped groove part 22, and pin holes are opened on both the first U-shaped groove part 22 and the pressure sleeve 23. Further, the first U-shaped groove part 22 and the pressure sleeve 23 are limited by a pin 24, and a region for clamping the electrical connection wire 20 is formed between the pressure sleeve 23 and the first U-shaped groove part 22.

[0044] Also, for example, in the embodiment shown in Figure 10 , its electrical connection wire installation part 19 includes that the end of the pin shaft 5 has a second U-shaped groove part 25, a pressure cover 26 is installed (for example, sleeved) on the second U-shaped groove part 25, and an elastic conductive hoop 27 in the shape of a "Ω" is connected inside the pressure cover 26. The pressure cover 26 is connected to both ends of the "Ω" shape of the conductive hoop 27 at the outer side end. The circular part of the conductive hoop 27 in the shape of a "Ω" enters the second U-shaped groove part 25 and is squeezed by the inner side surface of the second U-shaped groove part 25. Further, a region for clamping the electrical connection wire 20 is formed inside the circular part of the conductive hoop 27 in the shape of a "Ω".

[0045] Again, for exampleFigure 11 and Figure 1 In the embodiment shown, the electrical connection wire mounting portion 19 includes that the end of the pin shaft 5 has a third U-shaped groove portion 28. The outer side surface of the third U-shaped groove portion 28 has an external thread and is sleeved with a compression nut 29 in a matching manner. A "Φ"-shaped limit gasket 30 is also sleeved on the third U-shaped groove portion 28 in a matching manner. The strip-shaped plate in the middle of the "Φ" shape of the limit gasket 30 is located in the U-shaped groove of the third U-shaped groove portion 28. By screwing in the compression nut 29, the area enclosed by the limit gasket 30 and the third U-shaped groove portion 28 can be reduced, so as to form an area for clamping the electrical connection wire 20 between the strip-shaped plate of the limit gasket 30 and the third U-shaped groove portion 28; the compression nut 29 is, for example, a hexagonal nut. After positioning, the two ends of the strip-shaped plate in the middle of the "Φ" shape of the limit gasket 30 protrude from the compression nut 29 and are bent to fit the side surface of the compression nut 29, so as to prevent the compression nut 29 from rotating and coming off.

[0046] It should be noted that in the technical field, those that are electrically connected by the electrical connection wire terminal 17 or the pin shaft 5 of the electrical connection wire can be collectively referred to as "electrical connection wire". Under the "electrical connection wire", there are "equal voltage (potential) connection wires", "diversion (current-carrying) wires", "jumper wires", etc. according to the use, and these respectively have corresponding requirements such as rated current specifications. The design of this solution can meet the needs of both domestic and foreign markets. Further, the outer side dimension of the pin shaft 5 matches the inner side dimension of the pin shaft hole 4. One end of the pin shaft 5 is a pin shaft head 16, and the size of the pin shaft head 16 is larger than that of the pin shaft hole 4. The other end of the pin shaft 5 has a limit member mounting structure 14 for mounting the pin shaft limit member 13, so as to ensure that the pin shaft 5 will not come out during long-term use after installation.

[0047] Please refer to Figure 12 、 Figure 13 , in the preferred embodiment, the pin shaft 5 is also connected with a pin shaft diameter-changing portion 15 at one end close to the limit member mounting structure 14. The pin shaft 5 and the pin shaft diameter-changing portion 15 together form a diameter-changing pin shaft structure; the outer side dimension of the main body part of the pin shaft diameter-changing portion 15 is smaller than that of the pin shaft hole 4, forming a thin diameter section of the diameter-changing pin shaft. The pin shaft diameter-changing portion 15 forms a smooth transition section, for example, in a conical shape, at one end close to the pin shaft 5; the pin shaft 5 forms a thick diameter section of the diameter-changing pin shaft.

[0048] The pin diameter-changing part 15 and the pin 5 are preferably detachably connected, such as by snap connection. One end of the pin diameter-changing part 15 near the smooth transition section has a first snap part. For example, the first snap part includes a claw part with a certain elasticity and a clamping block located on the claw part; at the end of the pin 5 far from the pin head 16, a second snap part is provided. For example, the second snap part is an axial blind hole, and a radial through hole is provided on the side wall; during installation, under the action of the side wall of the axial blind hole of the second snap part, squeezing the pin diameter-changing part 15 will cause the claw part of the first snap part to undergo elastic deformation and close, and then the clamping block can be inserted into the axial blind hole of the second snap part. When the clamping block continues to penetrate into the radial through hole, under the action of the elastic restoring force of the claw part, the clamping block will pop outwards and be clamped in the radial through hole, thereby realizing the quick installation (and disassembly) of the pin diameter-changing part 15 and the pin 5. Figure 12 In the illustrated embodiment, the limiting member mounting structure 14 is a radial through hole for passing through the pin limiting member 13 (such as a split pin), and it also serves as the radial through hole of the second snap part, with a simpler and more ingenious structure; of course, the radial through hole can also be independent of the limiting member mounting structure 14; and other snap structures can also be adopted; or other detachable connection methods such as Figure 13 the threaded connection shown in the figure can be used.

[0049] This solution preferably adopts a variable-diameter pin structure, and its working principle is as follows. During installation, the variable-diameter pin is pulled out to the thin-diameter section as the working shaft of the positioning wire clamp (the thin-diameter section of the variable-diameter pin is in all the pin holes 4). At this time, since the pin hole 4 is slightly larger than the thin-diameter section, the jaw part 9 of the positioning wire clamp can be slightly opened, so that the contact wire or the carrier cable can be installed; then the variable-diameter pin is restored to its original position, that is, the thick-diameter section with the same size as the pin hole 4 is used as the working shaft (the thick-diameter section of the variable-diameter pin is in all the pin holes 4). At this time, the upper ends of the first wire clamp part 1 and the second wire clamp part 2 will be tightened, and the jaw part 9 will be tightly closed, realizing the stable clamping and positioning of the contact wire or the carrier cable; after the installation is completed, the pin diameter-changing part 15 can be disassembled to reduce the overall weight of the wire clamp, and the disassembled pin diameter-changing part 15 can also be reused in the installation process of other wire clamps.

[0050] Preferably, both the first wire clamp part 1 and the second wire clamp part 2 are parts processed by sheet metal through sheet metal working. Compared with traditional casting and forging processes, it has many advantages such as being more environmentally friendly, having more stable quality, being lighter in weight, and being able to achieve mass production economy. For example, both the first wire clamp part 1 and the second wire clamp part 2 are obtained by sheet metal working processes such as punching and shearing of sheets, and structures such as the wire clamp positioning part 3 are integrally formed with the first wire clamp part 1 or the second wire clamp part where they are located (formed by cutting and bending the sheets), saving materials and having a very high production and processing efficiency. Further, the structures of the first wire clamp part 1 and the second wire clamp part 2 are the same. In fact, only one kind of part needs to be produced, and there is no trouble of finding a set of parts during installation, making it easier to promote and apply.

[0051] In summary, the loop-type boltless suspension clamp of the present invention can better cooperate with the heart-shaped protective ring for installation and operation. By using a long pin shaft to tighten two clamp parts so that their upper ends are in contact with each other to form a protective ring suspension ring, it not only ensures convenient installation but also has stable and reliable connection. At the same time, the structure of this solution is concise, with a boltless design, excellent anti-loosening performance, and many advantages such as high strength, high toughness, small weight, long service life, easy debugging, and simple installation. Preferably, the sheet metal processing method is adopted, which has more stable quality, is more environmentally friendly, and has economies of scale compared with the traditional casting and forging processes.

Claims

1. A loop-type boltless suspension clamp, characterized in that, It includes a first wire clamp (1) and a second wire clamp (2) which are relatively arranged; wire clamp positioning parts (3) are provided at the front and rear ends of the first wire clamp (1) and the second wire clamp (2), a pin shaft hole (4) is formed on the wire clamp positioning part (3), all the pin shaft holes (4) of the first wire clamp (1) and the second wire clamp (2) are communicated with each other and a pin shaft (5) is penetratively inserted in a matching manner, both ends of the pin shaft (5) are located outside the first wire clamp (1) and the second wire clamp (2) and have a limiting structure; the upper part of the first wire clamp (1) has a first C-shaped part (6), the upper part of the second wire clamp (2) has a second C-shaped part (7), the opening directions of the first C-shaped part (6) and the second C-shaped part (7) are opposite, the first C-shaped part (6) and the second C-shaped part (7) are stacked and arranged together to form a guard ring hanging loop (8); the lower ends of the first wire clamp (1) and the second wire clamp (2) jointly form a clamping jaw part (9).

2. The loop-type boltless suspension clamp according to claim 1, characterized in that A first abutting part (11) is provided at a position above the pin shaft (5) of the first wire clamp (1), a second abutting part (12) is provided at a position above the pin shaft (5) of the second wire clamp (2), the first abutting part (11) abuts against the inner side of the second wire clamp (2), and the second abutting part (12) abuts against the inner side of the first wire clamp (1).

3. The loop-type boltless suspension clamp according to claim 2, characterized in that, The first abutting part (11) and the first C-shaped part (6) are arranged side by side, and the first abutting part (11) abuts against the lower part of the second C-shaped part (7); the second abutting part (12) and the second C-shaped part (7) are arranged side by side, and the second abutting part (12) abuts against the lower part of the first C-shaped part (6).

4. The loop-type boltless suspension clamp according to claim 3, wherein The position of the first C-shaped part (6) extends to one side of the second wire clamp (2), and the position of the second C-shaped part (7) extends to one side of the first wire clamp (1).

5. The loop-type boltless suspension clamp according to claim 1, characterized in that The outer side dimension of the pin shaft (5) matches the inner side dimension of the pin shaft hole (4); one end of the pin shaft (5) is a pin shaft head (16), the dimension of the pin shaft head (16) is larger than that of the pin shaft hole (4), and the other end of the pin shaft (5) has a limiting part installation structure (14) for installing a pin shaft limiting part (13).

6. The loop-type boltless suspension clamp according to claim 5, characterized in that A pin shaft diameter-changing part (15) is further connected to one end of the pin shaft (5) close to the limiting part installation structure (14); the outer side dimension of the main body part of the pin shaft diameter-changing part (15) is smaller than that of the pin shaft hole (4), and a smooth transition section is formed at one end of the pin shaft diameter-changing part (15) close to the pin shaft (5).

7. The loop-type boltless suspension clamp according to any one of claims 1-6, characterized in that An electric connection wire connection hole (18) for installing a terminal (17) of an electric connection wire is provided on the side surface of the first wire clamp (1) and / or the second wire clamp (2).

8. The loop-type boltless suspension clamp according to claim 7, characterized in that, The terminal (17) of the electric connection wire is in a cylindrical shape, and the terminal (17) of the electric connection wire is riveted in the electric connection wire connection hole (18).

9. The loop-type boltless suspension clamp according to any one of claims 1-6, characterized in that, One end of the pin shaft (5) has an electrical connection wire mounting portion (19), and the electrical connection wire mounting portion (19) has a locking mechanism for clamping and fixing the electrical connection wire (20).

10. The loop-type boltless suspension clamp according to claim 9, characterized in that, The electrical connection wire mounting portion (19) includes that the end of the pin shaft (5) has a first U-shaped groove portion (22), a compression sleeve (23) is sleeved on the first U-shaped groove portion (22), the first U-shaped groove portion (22) and the compression sleeve (23) are limited by a pin (24), and a region for clamping the electrical connection wire (20) is formed between the compression sleeve (23) and the first U-shaped groove portion (22); Alternatively, the electrical connection wire mounting portion (19) includes that the end of the pin shaft (5) has a second U-shaped groove portion (25), a gland (26) is mounted on the second U-shaped groove portion (25), an elastic conductive hoop (27) in the shape of an "Ω" is connected inside the gland (26), the gland (26) is connected to both ends of the "Ω" shape of the conductive hoop (27) at the outer side end, the circular part of the "Ω" shape of the conductive hoop (27) is located inside the second U-shaped groove portion (25), and a region for clamping the electrical connection wire (20) is formed inside the circular part of the "Ω" shape of the conductive hoop (27); Alternatively, the electrical connection wire mounting portion (19) includes that the end of the pin shaft (5) has a third U-shaped groove portion (28), the outer side surface of the third U-shaped groove portion (28) has an external thread and a compression nut (29) is sleeved thereon in a matching manner, a limiting gasket (30) in the shape of a "Φ" is also sleeved on the third U-shaped groove portion (28) in a matching manner, the strip-shaped plate in the middle of the "Φ" shape of the limiting gasket (30) is located in the U-shaped groove of the third U-shaped groove portion (28), and a region for clamping the electrical connection wire (20) is formed between the strip-shaped plate of the limiting gasket (30) and the third U-shaped groove portion (28); both ends of the strip-shaped plate in the middle of the "Φ" shape of the limiting gasket (30) protrude from the compression nut (29) and are bent to fit the side surface of the compression nut (29).

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