Bolt-free light and tough positioning wire clamp and assembling method thereof

Abstract

The invention relates to a bolt-free light and tough positioning wire clamp and an assembling method thereof. The positioning wire clamp comprises a first wire clamp piece and a second wire clamp piece, wire clamp positioning parts are arranged at the front ends and the rear ends of the first wire clamp piece and the second wire clamp piece, and pin shaft holes are formed in the wire clamp positioning parts. The first wire clamp piece and the second wire clamp piece are oppositely arranged, all the pin shaft holes are communicated, and a pin shaft penetrates through the pin shaft holes in a matched mode; the upper ends of the first wire clamp piece and the second wire clamp piece are in butt joint, a connecting piece accommodating hole is formed in the middle, and a positioning connecting piece penetrates into the connecting piece accommodating hole; the opposite inner sides of the first wire clamp and the second wire clamp are provided with connecting piece limiting parts. The lower end of the positioning connecting piece is clamped between the connecting piece limiting parts of the first wire clamp and the second wire clamp in a matched mode. And the lower ends of the first wire clamp and the second wire clamp form jaw parts for clamping a contact wire. The scheme is simple in structure, convenient to assemble, stable and reliable in connection effect and more suitable for production and application.

Description

Technical Field

[0001] The invention belongs to the technical field of railway contact network devices, and in particular relates to a bolt-free, light-tough positioning wire clamp and an assembling method thereof. Background Art

[0002] The "positioning wire clamp" is a component of the flexible suspension system of the overhead contact network of electrified railways and rail transit. Traditional positioning wire clamps, such as the structure shown in the Chinese invention patent with application publication number CN106114289A, use bolts to connect the two parts of the wire clamp, so there is a problem of time-consuming and labor-intensive assembly process. Another existing positioning wire clamp, such as the Chinese invention patent with application publication number CN110588446A, does not require bolts for assembly, but uses a clamping and locking method. The structure is relatively complex and has high requirements for dimensional accuracy. In addition, the existing positioning wire clamps are usually produced by casting or forging due to their structural characteristics, which have problems such as high cost, heavy weight, and poor quality stability in mass production. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a boltless, lightweight and tough positioning wire clamp and an assembly method thereof, so as to solve the problems of the existing positioning wire clamps, such as time-consuming assembly, large size, heavy weight and poor economy, and realize assembly in a boltless manner while ensuring assembly efficiency and connection positioning effect. The overall structure is light, tough and compact, and is easier to use.

[0004] According to the technical scheme of the present invention, the present invention provides a bolt-free, lightweight and flexible positioning wire clamp, comprising a first wire clamp member and a second wire clamp member; wire clamp positioning parts are provided at both the front and rear ends of the first wire clamp member and the second wire clamp member, and the wire clamp positioning parts have pin shaft holes; the first wire clamp member and the second wire clamp member are arranged opposite to each other, all the pin shaft holes are connected and a pin shaft is matched to be inserted through them; the upper ends of the first wire clamp member and the second wire clamp member are connected to each other, and a connector accommodating hole is formed in the middle, and a positioning connector is inserted into the connector accommodating hole; the first wire clamp member and the second wire clamp member have connector limiting parts on the opposite inner sides, and the lower end of the positioning connector is matched to be clamped between the connector limiting parts of the first wire clamp member and the second wire clamp member; the lower ends of the first wire clamp member and the second wire clamp member form a jaw part for clamping the contact wire.

[0005] Furthermore, the outer side dimension of the pin matches the inner side dimension of the pin hole; one end of the pin is a pin head, the size of the pin head is larger than the pin hole, and the other end of the pin has a limit piece installation structure for installing the pin limit piece.

[0006] Preferably, the pin shaft is also connected to a pin shaft reducing portion at one end close to the limit member mounting structure; the outer side surface size of the main part of the pin shaft reducing portion is smaller than the pin shaft hole, and the pin shaft reducing portion forms a smooth transition section at one end close to the pin shaft.

[0007] Furthermore, the pin shaft reducing portion and the pin shaft are detachably connected.

[0008] In some embodiments, the positioning connector is a groove-type positioning connector, and an annular groove is opened on the outer side of the lower end of the positioning connector; the inner side of the connector limiting portion clamps the annular groove, and the outer side of the connector limiting portion is connected to the first wire clamp and / or the second wire clamp.

[0009] Furthermore, a limiting part mounting hole or a limiting part mounting groove for mounting a limiting part of the positioning connector is provided on the first wire clamp and / or the second wire clamp; the connector limiting part is one component or two components; the connector limiting part is clamped on both sides of the positioning connector, or the connector limiting part is arranged around the positioning connector.

[0010] In other embodiments, the positioning connector is a boss-type positioning connector, and the outer side surface of the lower end of the positioning connector has an annular boss; the annular boss is snap-connected to the upper parts of the first wire clamp and the second wire clamp and the connector limiting part in a matching manner; the connector limiting part includes a connector positioning groove opened on the inner side surface of the first wire clamp and / or the second wire clamp, and / or the connector limiting part includes a connector positioning protrusion arranged on the inner side surface of the first wire clamp and / or the second wire clamp.

[0011] Preferably, the first wire clamp member and the second wire clamp member have the same structure.

[0012] Preferably, the first wire clamp and the second wire clamp are both components made of plate materials through sheet metal processing.

[0013] According to the technical solution of the present invention, the present invention also provides an assembly method of a boltless light-tough positioning wire clamp, which uses the boltless light-tough positioning wire clamp of the present invention and comprises the following steps:

[0014] Step S1, without installing the contact wire, first assemble the bolt-free light-tough positioning wire clamp of the present invention; in this step, the positioning connector is installed at the same time;

[0015] Step S2, when the stopper installation structure of the pin shaft is not installed with the stopper, move the pin shaft so that all the pin shaft holes are located on the main body of the pin shaft reducing portion;

[0016] Step S3, separating the lower ends of the first wire clamp and the second wire clamp, and installing the contact wire;

[0017] Step S4, moving the pin shaft so that all the pin shaft holes are located on the pin shaft;

[0018] Step S5, dismantle the pin shaft reducing portion and install the pin shaft limiting member.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0020] 1. The boltless, lightweight and flexible positioning wire clamp of the present invention is lightweight and compact, and is installed by a pin shaft, so the assembly process is more convenient and quick, and the structure is relatively simple and easy to produce and process; based on the product size design, the positioning wire clamp, the positioning connector and the contact wire can be fixed as a whole after the pin shaft is installed, and one end of the positioning connector and one end of the contact wire will form a lever structure under the action of the pin shaft, which have a mutually restrictive relationship, so the connection effect can be guaranteed to be more stable and reliable.

[0021] 2. The boltless, lightweight and flexible positioning wire clamp of the present invention has a simple structure, small size and light weight. There are so-called "hard points" in the flexible suspension system, and the positioning wire clamp is located exactly where the hard points are. The light weight and small size of the positioning wire clamp can reduce the hard points and their impact and fluctuation effects on the pantograph, which is beneficial to very high-speed operation (such as high-speed rail).

[0022] 3. The boltless, lightweight and tough positioning wire clamp of the present invention adopts a sheet metal processing technology without welding. Compared with the existing scheme using casting and forging, it has the advantages of low cost, high precision, stable quality, high efficiency, environmental protection and mass production economy, which is conducive to mass production and maintaining stable quality.

[0023] 4. The boltless, lightweight and tough positioning wire clamp and its assembly method of the present invention are highly versatile and can be applied to the interface requirements of the positioning pin sleeves commonly used in the railway track transit contact network arm suspension system, regardless of whether groove-type positioning pins or boss-type positioning pins are used, and can also be extended to positioning connectors with non-standard requirements.

[0024] 5. The boltless, lightweight and tough positioning wire clamp and its assembly method of the present invention preferably adopt a detachable reducing pin shaft structure. The working principle is that during assembly, the pin shaft is pulled out to the thin diameter part as the working axis of the positioning wire clamp. At this time, since the pin shaft hole is slightly larger than the working axis, the jaws of the positioning wire clamp can be slightly opened so that the contact wire can be installed; then the pin shaft is restored to its original position, and the thick diameter part with the same size as the pin shaft hole is used as the working axis. At this time, the jaws will be tightly closed to achieve a stable clamping and positioning of the contact wire; after the installation is completed, the reducing portion of the pin shaft can be removed to reduce the overall weight of the positioning wire clamp, and the removed reducing portion of the pin shaft can also be reused in the installation process of other positioning wire clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention in an assembled state.

[0026] Figure 2 This Figure 1 Schematic diagram of the rear view of the structure shown.

[0027] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure from another perspective after removing some parts of the structure shown.

[0028] Figure 4 It is a schematic structural diagram of a pin shaft, a pin shaft reducing portion, and a pin shaft limiting member according to an embodiment of the present invention.

[0029] Figure 5 It is a structural schematic diagram of a pin shaft, a pin shaft reducing portion, and a pin shaft limiting member in another embodiment of the present invention.

[0030] Figure 6 It is a structural schematic diagram of a pin shaft and a pin shaft limiting member according to yet another embodiment of the present invention.

[0031] Figure 7 It is a structural schematic diagram of a connector limiting portion and surrounding structures according to an embodiment of the present invention.

[0032] Figure 8 It is a structural schematic diagram of a connector limiting portion and surrounding structures according to another embodiment of the present invention.

[0033] Fig. 9 It is a structural schematic diagram of a connector limiting portion and surrounding structures according to yet another embodiment of the present invention.

[0034] Fig.10 It is a schematic diagram of the three-dimensional structure of another embodiment of the present invention in an assembled state.

[0035] Fig.11 yes Fig.10 A schematic diagram of the three-dimensional structure from another perspective after removing some parts of the structure shown.

[0036] Description of reference numerals in the accompanying drawings:

[0037] 1. First line clamp;

[0038] 2. Second line clamp;

[0039] 3. Wire clamp positioning part;

[0040] 4. Pin hole;

[0041] 5. Pin;

[0042] 6. Connector receiving hole;

[0043] 7. Positioning connectors;

[0044] 8. Connector limiter;

[0045] 9. Jaw portion;

[0046] 10. Pin head;

[0047] 11. Limiting parts installation structure;

[0048] 12. Pin limiter;

[0049] 13. Pin reducing part;

[0050] 14. Annular groove;

[0051] 15. Annular boss;

[0052] 16. Connector positioning groove;

[0053] 17. Connector positioning protrusion. DETAILED DESCRIPTION

[0054] The present invention provides a boltless, light and flexible positioning wire clamp and an assembly method thereof, which solve the problems of time-consuming assembly, large size, heavy weight and poor economy of existing positioning wire clamps, and realizes assembly in a boltless manner while ensuring assembly efficiency and connection positioning effect. The overall structure is light, flexible and compact, and is easier to use.

[0055] See also Figures 1 to 3According to an embodiment of the present invention, a bolt-free, light-tough positioning wire clamp comprises a first wire clamp member 1 and a second wire clamp member 2. The first wire clamp member 1 and the second wire clamp member 2 are provided with wire clamp positioning parts 3 at both ends, and the wire clamp positioning parts 3 have pin holes 4, so that there are at least four pin holes 4 in total. The first wire clamp member 1 and the second wire clamp member 2 are arranged opposite to each other, and all the pin holes 4 are located between the first wire clamp member 1 and the second wire clamp member 2 (or called the inner side of the positioning wire clamp), and all the pin holes 4 are intersected and matched with a pin 5. The outer side size of the pin 5 matches the inner side size of the pin hole 4 (that is, the same or with a small difference for easy loading and unloading), so that after the pin 5 is installed in place, the first wire clamp member 1 and the second wire clamp member 2 will be "tightened" together, and the position is relatively fixed; without installing other components, the first wire clamp member 1 and the second wire clamp member 2 form a lever structure, which can rotate around the pin 5 to change the angle between the two. The upper ends of the first wire clamp 1 and the second wire clamp 2 are butted against each other, and a connector accommodating hole 6 is formed in the middle, and a positioning connector 7 is inserted into the connector accommodating hole 6; for example, the upper ends of the first wire clamp 1 and the second wire clamp 2 both have semicircular grooves, and a circular connector accommodating hole 6 is formed after being butted against each other, and is clamped to match the cylindrical positioning connector 7. The first wire clamp 1 and the second wire clamp 2 both have connector limiting portions 8 on the opposite inner sides, and the lower end of the positioning connector 7 is clamped between the connector limiting portions 8 of the first wire clamp 1 and the second wire clamp 2 in a matching and snap-fitting manner. The lower ends of the first wire clamp 1 and the second wire clamp 2 form a jaw portion 9 for clamping the contact wire.

[0056] See also Figures 4 to 6 The pin 5 is cylindrical, the pin hole 4 is a round hole, the outer diameter of the main part of the pin 5 matches the inner diameter of the pin hole 4, one end of the pin 5 is a pin head 10, and the size of the pin head 10 is larger than the pin hole 4 (also larger than the main part of the pin 5). Figure 4 In the illustrated embodiment, the pin head 10 has plate-like protrusions or bumps on both sides, and the overall width of the pin head 10 is greater than the main body of the pin 5 to form a blocking limit, and this structure is convenient for handheld operation. Figure 5 In the illustrated embodiment, the pin head 10 is an annular protrusion, and the length in all directions is greater than the diameter of the main body of the pin 5 .

[0057] The other end of the pin 5 has a stopper installation structure 11 for installing a pin stopper 12. Figure 4 In the embodiment shown, the stopper installation structure 11 is a through hole, and the pin stopper 12 is, for example, a split pin, which is fixed in position after being inserted into the through hole, and plays a limiting role to prevent the pin 5 from falling out. Figure 6In the illustrated embodiment, the limiting member installation structure 11 is an annular groove, and the pin limiting member 12 is a retaining ring, which can be embedded in, sleeved and fixed outside the pin 5 to form a limiting protrusion.

[0058] Preferably, the pin shaft 5 is further connected to a pin shaft reducing portion 13 at one end close to the stopper mounting structure 11, and the pin shaft 5 and the pin shaft reducing portion 13 together form a reducing pin shaft structure. The outer side dimension of the main part of the pin shaft reducing portion 13 is smaller than the pin shaft hole 4, forming a thin diameter section; the pin shaft reducing portion 13 forms a smooth transition section such as a cone at one end close to the pin shaft 5; the main part of the pin shaft 5 constitutes a thick diameter section of the reducing pin shaft.

[0059] The pin shaft 5 and the pin shaft reducing portion 13 may be an integrally formed part. Preferably, the pin shaft reducing portion 13 and the pin shaft 5 are detachably connected. Figure 4 In the illustrated embodiment, a snap-fit ​​structure is used to achieve a detachable connection. The end of the pin reducer 13 close to the smooth transition section has a first snap-fit ​​portion, for example, the first snap-fit ​​portion includes a claw portion with a certain elasticity and a clamping block on the claw portion; the end of the pin 5 away from the pin head 10 is provided with a second snap-fit ​​portion, for example, the second snap-fit ​​portion is an axial blind hole, and a radial through hole is opened on the side wall; during assembly, under the action of the side wall of the axial blind hole of the second snap-fit ​​portion, squeezing the pin reducer 13 will cause the claw portion of the first snap-fit ​​portion to elastically deform and close, and then the clamping block can be inserted into the axial blind hole of the second snap-fit ​​portion, and when the clamping block continues to penetrate into the radial through hole, the clamping block will pop outward and clamp in the radial through hole under the action of the elastic restoring force of the claw portion, thereby realizing the rapid installation (and disassembly) of the pin reducer 13 and the pin 5. Figure 4 In the illustrated embodiment, the position-limiting member mounting structure 11 is a radial through hole for inserting a cotter pin, which also serves as a radial through hole of the second buckle portion, and the structure is simpler and more ingenious. Of course, the radial through hole may also be independent of the position-limiting member mounting structure 11, and other buckle structures may also be used.

[0060] For example Figure 5 In the embodiment shown, a threaded structure is used to achieve a detachable connection. The end of the pin reducer 13 close to the smooth transition section has a first threaded portion, for example, a stud; the end of the pin 5 away from the pin head 10 is provided with a second threaded portion, for example, a screw hole; the stud and the screw hole are matched for installation.

[0061] like Figure 4 , Figure 5 As shown, the pin shaft reducing portion 13 may be optionally provided with an additional structure at the end away from the pin shaft 5. The size of the additional structure is larger than the pin shaft hole 4, so as to form a limit to prevent the reducing pin shaft structure from completely slipping out of the pin shaft hole 4 during installation, which may increase the installation time. The additional structure may be flat or annular with a through hole, especially for Figure 5The screw connection method shown can be used to insert a hard rod-like tool into the through hole of the additional structure for easy screwing. In addition, it is conceivable that Figure 6 The pin shaft 5 using a retaining ring as shown can also be combined with the above-mentioned structure to form a detachable variable diameter pin shaft.

[0062] The present invention preferably adopts a variable diameter pin structure, and its working principle is as follows. During assembly, the variable diameter pin is pulled out to the thin diameter portion as the working axis of the positioning wire clamp (all the pin shaft holes 4 are the thin diameter section of the main part of the pin shaft variable diameter portion 13). At this time, since the pin shaft hole 4 is slightly larger than the thin diameter section, the jaw portion 9 of the positioning wire clamp can be slightly opened, so that the contact wire can be installed; then the variable diameter pin is restored to its original position, that is, the thick diameter portion with the same size as the pin shaft hole 4 is used as the working axis (all the pin shaft holes 4 are the thick diameter section of the main part of the pin shaft 5). At this time, the upper ends of the first wire clamp 1 and the second wire clamp 2 will be pressed tightly, and the jaw portion 9 will be tightly closed, so as to achieve a stable clamping and positioning of the contact wire; after the installation is completed, the pin shaft variable diameter portion 13 can be disassembled to reduce the overall weight of the positioning wire clamp, and the disassembled pin shaft variable diameter portion 13 can also be used in the installation process of other positioning wire clamps.

[0063] like Figures 1 to 3 In the illustrated embodiment, the positioning connector 7 is a groove-type positioning connector, such as a groove-type positioning pin, and an annular groove 14 is provided on the outer side of the lower end of the positioning connector 7. For this type of positioning connector, the inner side of the connector stopper 8 clamps the annular groove 14, and the outer side of the connector stopper 8 is connected to the inner side of the first wire clamp 1 and / or the second wire clamp 2 (for example, fixedly connected or detachably abutting the positioning connection). Preferably, for example, the connector stopper 8 is a rod-shaped structure bent into a shape that fits the shape of the annular groove 14, more specifically, for example Figure 1 , Figure 3 As shown, the connector limiter 8 is two identical parts bent into an M shape, so that the two connector limiters 8 arranged opposite to each other are clamped on both sides of the positioning connector 7 in the middle of the inner side; the first wire clamp 1 and the second wire clamp 2 have limiter mounting holes for mounting the positioning connector limiter 8, and the two ends of the connector limiter 8 extend outward and extend a distance from the limiter mounting holes, so that when the positioning wire clamp is assembled, the connector limiter 8 will not fall off, and the structure and assembly process are relatively simple. For this embodiment, a limiter mounting groove for mounting the positioning connector limiter 8 is optionally provided on the inner side of the first wire clamp 1 and / or the second wire clamp 2, and the outer side of the connector limiter 8 fits in the limiter mounting groove, which plays a further role in stabilizing the positioning.

[0064] like Figure 7 In another embodiment shown, Figure 3Compared with the illustrated embodiment, the connector limiting portion 8 is simpler and is only located inside the first wire clamp 1 and the second wire clamp 2 . The first wire clamp 1 and the second wire clamp 2 have limiting portion mounting grooves inside.

[0065] like Figure 8 In another embodiment shown in the figure, the connector stopper 8 is a component, which is equivalent to Figure 7 On the basis of the embodiment shown, two independent connector stoppers 8 are connected into one, and the connection part passes through the front or rear end of the positioning wire clamp, which does not hinder the installation and use of the positioning wire clamp. At the same time, since the connector stopper 8 has only one component, it is more convenient for the staff to operate during installation.

[0066] like Fig. 9 In another embodiment shown, the connector stopper 8 is a component, and the connector stopper 8 is arranged around the positioning connector 7. It can be understood that in the above or similar embodiments, the stopper installation groove and / or the stopper installation hole can be provided on the first wire clamp 1 and / or the second wire clamp 2 accordingly; and the number, shape, etc. of the connector stopper 8 are not limited to the specific embodiments shown in the drawings, as long as a protrusion is formed on the inner side of the positioning wire clamp to limit the groove-type positioning connector.

[0067] like Fig.10 , Fig.11 In the illustrated embodiment, the positioning connector 7 is a boss-type positioning connector, such as a boss-type positioning pin, and the outer side surface of the lower end of the positioning connector 7 has an annular boss 15. The annular boss 15 is snap-connected to the upper portions of the first wire clamp 1 and the second wire clamp 2 and the connector limiting portion 8 in a matching manner; the connector limiting portion 8 includes a connector positioning groove 16 provided on the inner side surface of the first wire clamp 1 and / or the second wire clamp 2, and / or the connector limiting portion 8 includes a connector positioning protrusion 17 provided on the inner side surface of the first wire clamp 1 and / or the second wire clamp 2. More specifically, for example Fig.11 As shown, there are both a connector positioning groove 16 and a connector positioning protrusion 17. The upper side wall of the connector positioning groove 16 is the upper, transversely opposite plate-like portion of the first wire clamp 1 and the second wire clamp 2. The edge position of the annular boss 15 of the positioning connector 7 is embedded in the connector positioning groove 16, and the lower end is further supported by the connector positioning protrusion 17.

[0068] Preferably, the first wire clamp 1 and the second wire clamp 2 have the same structure. Fig. 9, the first wire clamp 1 and the second wire clamp 2 are in a central symmetric relationship. In other words, when viewed from above or above, the placement angles of the same structure used by the first wire clamp 1 and the second wire clamp 2 differ by 180°, so that the wire clamp positioning part 3 is stacked in an offset manner. The first wire clamp 1 and the second wire clamp 2 use the same structure, so only one part needs to be processed during actual production, so it has many advantages such as convenient and fast processing, low cost of industrial mass production, and no need to find different parts for matching during assembly.

[0069] Preferably, the first wire clamp 1 and the second wire clamp 2 are both components made of plate materials through sheet metal processing, which are more environmentally friendly, more stable in quality, lighter in weight, and have many advantages over traditional casting and forging processes, such as economies of scale. Fig.10 , Fig.11 Taking the structure shown as an example, the first wire clamp 1 and the second wire clamp 2 are both made of sheet metal through punching and shearing technology, and the connecting part limiting part 8, the wire clamp positioning part 3, etc. are all integrally formed with the first wire clamp 1 or the second wire clamp 2 where they are located, which is formed by cutting and bending the sheet metal, saving materials and having high production and processing efficiency.

[0070] It should be noted that the positioning connector 7 described in the present invention is, for example, a positioning pin or a positioning sleeve, etc., the lower end of which is used to connect the positioning wire clamp (the first wire clamp 1 and the second wire clamp 2, etc.), and the upper end has other connectors such as a positioning pin sleeve and the like for connecting the wrist arm locator, such as a through hole; and the jaw portion 9 is used to install the contact wire, etc.; these structures, functions, etc. are clear based on the prior art, and can also be replaced with other specific structures as needed, and will not be elaborated here. In terms of materials, the main parts of the positioning wire clamp (mainly the first wire clamp 1 and the second wire clamp 2 and the pin 5) are preferably made of copper-nickel silicon (CuNi2Si), the best material recognized by the railway industry; the detachable pin reducer 13 can be made of copper, steel, aluminum or plastic, etc.

[0071] Based on the preferred boltless light-tough positioning wire clamp with a detachable pin shaft reducing portion 13 of the present invention, the present invention also provides an assembly method of the boltless light-tough positioning wire clamp, which comprises the following steps:

[0072] Step S1, without installing the contact wire, first assemble the various parts of the bolt-free light-tough positioning wire clamp of the present invention; in this step, the positioning connector 7 is installed at the same time;

[0073] Step S2, when the stopper installation structure 11 of the pin shaft 5 is not installed with the pin shaft stopper 12, move the pin shaft 5 so that all the pin shaft holes 4 are located on the main part (thin diameter section) of the pin shaft reducing portion 13;

[0074] Step S3, separating the lower ends of the first wire clamp 1 and the second wire clamp 2, and installing the contact wire;

[0075] Step S4, move the pin 5 so that all the pin holes 4 are located on the pin 5 (the thick diameter section); after this step is completed, the bolt-free light-tough positioning wire clamp and the connected positioning connector 7 and the contact wire will form an integral structure installed and fixed together;

[0076] Step S5, remove the pin reducer 13 and install the pin limiter 12; at this point, the positioning clamp of the present invention is partially assembled; for other parts such as the installation of the positioning connector 7 and the wrist arm positioner, the installation can be carried out at an appropriate time according to the actual situation and relevant regulations.

[0077] In summary, the boltless, lightweight and tough positioning wire clamp and its assembly method of the present invention are a new type of positioning wire clamp solution, which can be applied to high-speed and normal-speed railways and rail transit systems, and are suitable for production and application; the product has many advantages such as high strength, high toughness, simple structure, small size, light weight, and long life, which is especially beneficial to very high-speed operation such as high-speed railways, and adopts a boltless design with excellent anti-loosening performance; it has high versatility and can be applied to the groove-type positioning pins and boss-type positioning pin interfaces commonly used in the flexible suspension system of the railway track transit contact network, as well as other positioning connectors with non-standard requirements; the assembly process is convenient and fast, and the connection effect is stable and reliable; the welding-free sheet metal processing technology is adopted, which has low cost, high precision, stable quality, high efficiency, environmental protection and mass production economy compared with traditional casting and press forging processes, and is especially beneficial to mass production and maintaining stable quality.

Claims

1. A boltless, light and tough positioning wire clamp, characterized in that: The invention comprises a first wire clamp (1) and a second wire clamp (2); the first wire clamp (1) and the second wire clamp (2) are both provided with wire clamp positioning parts (3) at their front and rear ends, and the wire clamp positioning parts (3) have pin shaft holes (4); the first wire clamp (1) and the second wire clamp (2) are arranged opposite to each other, and all the pin shaft holes (4) are connected to each other and a pin shaft (5) is inserted into the pin shaft holes (4); the upper ends of the first wire clamp (1) and the second wire clamp (2) are connected to each other, and a pin shaft (5) is formed in the middle. A connector accommodating hole (6), wherein a positioning connector (7) is inserted into the connector accommodating hole (6); the first wire clamp (1) and the second wire clamp (2) both have connector limiting portions (8) on opposite inner sides, and the lower end of the positioning connector (7) is matchedly clamped between the connector limiting portions (8) of the first wire clamp (1) and the second wire clamp (2); the lower ends of the first wire clamp (1) and the second wire clamp (2) form a jaw portion (9) for clamping the contact wire.

2. The boltless, light-tough positioning wire clamp according to claim 1, characterized in that: The outer side dimensions of the pin shaft (5) match the inner side dimensions of the pin shaft hole (4); one end of the pin shaft (5) is a pin shaft head (10), the size of the pin shaft head (10) is larger than the pin shaft hole (4), and the other end of the pin shaft (5) has a limiter mounting structure (11) for mounting a pin shaft limiter (12).

3. The boltless, light-tough positioning wire clamp according to claim 2, characterized in that: The pin shaft (5) is also connected to a pin shaft reducing portion (13) at one end close to the position-limiting member mounting structure (11); the outer side surface dimension of the main part of the pin shaft reducing portion (13) is smaller than the pin shaft hole (4), and the pin shaft reducing portion (13) forms a smooth transition section at one end close to the pin shaft (5).

4. The boltless, light-tough positioning wire clamp according to claim 3, characterized in that: The pin shaft reducing portion (13) and the pin shaft (5) are detachably connected.

5. The boltless, light-tough positioning wire clamp according to any one of claims 1 to 4, characterized in that: The positioning connector (7) is a groove-type positioning connector, and an annular groove (14) is provided on the outer side surface of the lower end of the positioning connector (7); the inner side of the connector limiting portion (8) clamps the annular groove (14), and the outer side of the connector limiting portion (8) is connected to the first wire clamp (1) and / or the second wire clamp (2).

6. The boltless, light-tough positioning wire clamp according to claim 5, characterized in that: The first wire clamp (1) and / or the second wire clamp (2) is provided with a limiting part installation hole or a limiting part installation groove for installing the positioning connecting part limiting part (8); the connecting part limiting part (8) is clamped on both sides of the positioning connecting part (7), or the connecting part limiting part (8) is arranged around the positioning connecting part (7).

7. The boltless, light-tough positioning wire clamp according to any one of claims 1 to 4, characterized in that: The positioning connector (7) is a boss-type positioning connector, and the outer side surface of the lower end of the positioning connector (7) has an annular boss (15); the annular boss (15) is snap-connected to the upper parts of the first wire clamp (1) and the second wire clamp (2) and the connector limiting part (8) in a matching manner; the connector limiting part (8) includes a connector positioning groove (16) provided on the inner side surface of the first wire clamp (1) and / or the second wire clamp (2), and / or the connector limiting part (8) includes a connector positioning protrusion (17) provided on the inner side surface of the first wire clamp (1) and / or the second wire clamp (2).

8. The boltless, light-tough positioning wire clamp according to any one of claims 1 to 4, characterized in that: The first wire clamp component (1) and the second wire clamp component (2) have the same structure.

9. The boltless, light-tough positioning wire clamp according to any one of claims 1 to 4, characterized in that: The first wire clamp component (1) and the second wire clamp component (2) are both components made of plate materials through sheet metal processing.

10. A method for assembling a boltless, lightweight, and flexible positioning wire clamp, characterized in that: The bolt-free light-tough positioning wire clamp as claimed in claim 4 comprises the following steps: Step S1, without installing the contact wire, first assemble the bolt-free light-tough positioning wire clamp; in this step, the positioning connector (7) is installed at the same time; Step S2, in a state where the stopper installation structure (11) of the pin shaft (5) is not installed with the pin shaft stopper (12), the pin shaft (5) is moved so that all the pin shaft holes (4) are located on the main body of the pin shaft reducing portion (13); Step S3, separating the lower ends of the first wire clamp (1) and the second wire clamp (2) and installing the contact wire; Step S4, moving the pin shaft (5) so that all the pin shaft holes (4) are located on the pin shaft (5); Step S5, dismantle the pin shaft reducing portion (13) and install the pin shaft limiting member (12).

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