Gray bus end sheath

Abstract

The utility model relates to the technical field of Gray bus end fixing, and provides a Gray bus end sheath, which comprises a fixing frame and a corrugated pipe, one side of the fixing frame is provided with a clamping cavity, the other side of the fixing frame is provided with a first through hole and a second through hole, and the first through hole and the second through hole are communicated with the clamping cavity; one end of the corrugated pipe is fixedly arranged in the first through hole; the Gray bus comprises a flat shell, a core wire and a steel wire rope, the core wire is arranged in the corrugated pipe in a penetrating mode, and the steel wire rope is arranged in the second penetrating hole in a penetrating mode. According to the utility model, the end sheath can be fixed with the end part of the flat shell and the steel wire rope through the arrangement of the clamping cavity and the second through hole, and the core wire can be wrapped and protected through the arrangement of the first through hole and the corrugated pipe, so that the core wire can be prevented from being exposed and can be freely bent, thereby ensuring the safe operation of the Gray bus.

Description

Technical Field

[0001] The utility model relates to the technical field of Gray busbar end fixing, in particular to a Gray busbar end sheath. Background Art

[0002] Generally, there are 9 - 12 pairs of address lines in a Gray busbar. Each pair of address lines is encoded according to the rule of Gray code, so it gets its name. For example, a Gray busbar vehicle inspection antenna receiving system disclosed in the utility model with the publication number CN213304341U. The Gray busbar is the core component of the Gray busbar positioning system. It is laid along the track direction of the moving locomotive. Both ends of the Gray busbar are connected to the address coding cabinet and the terminal box respectively. An electromagnetic coupling is carried out between its middle position and the antenna box to realize signal transmission, so as to detect the position of the antenna box in the length direction of the Gray busbar.

[0003] The utility model with the publication number CN218585701U discloses a fixing device for Gray busbar encoding, including a clamping mechanism. The clamping mechanism is used to clamp the Gray busbar core wire during the Gray busbar encoding process. There are multiple clamping mechanisms. The clamping mechanism includes a transverse clamping part and a longitudinal clamping part. The transverse clamping part is used to clamp the transverse part of the Gray busbar core wire, and the longitudinal clamping part is used to clamp the longitudinal part of the Gray busbar core wire. During the Gray busbar core wire encoding process, the tensile force is restricted to the current clamping mechanism nearby encoding area, preventing the tensile force from being conducted to the area where the core wire encoding has been completed, which can greatly reduce the position offset of the transverse part of the core wire, and thus reduce and even eliminate the cumulative error generated by the transverse position of the core wire, so as to be able to reduce the influence on the actual encoding step value of the core wire and is conducive to controlling the position accuracy of the Gray busbar core wire.

[0004] In the above technical solution, in order to improve the position accuracy of the Gray busbar core wire, a clamping mechanism for fixing and protecting the middle position of the Gray busbar is set. However, there is a lack of an institution for fixing and protecting the end of the Gray busbar, resulting in the core wire connected to the address coding cabinet or the terminal box at the end of the Gray busbar being exposed outdoors, which not only affects its aesthetics but also has potential safety hazard problems such as water ingress or dust accumulation. Summary of the Utility Model

[0005] In view of this, the utility model proposes a Gray busbar end sheath, which can protect the end of the Gray busbar and ensure the safe operation of the Gray busbar.

[0006] The technical solution of the utility model is realized as follows: The utility model provides a Gray busbar end sheath for protecting the end of the Gray busbar, including a fixing frame and a corrugated pipe. Among them,

[0007] One side of the fixing bracket is provided with a clamping cavity, and the other side is provided with a first through hole and a second through hole, and both the first through hole and the second through hole communicate with the clamping cavity;

[0008] One end of the corrugated pipe is fixedly arranged in the first through hole;

[0009] The Gray busbar includes a flat outer shell, a core wire and a steel wire rope. The end of the flat outer shell is hermetically fixed in the clamping cavity; both the core wire and the steel wire rope are fixedly arranged in the flat outer shell through, and the core wire is arranged in the corrugated pipe through, and the steel wire rope is arranged in the second through hole through.

[0010] Based on the above technical solutions, preferably, the fixing bracket includes a first fixing bracket, a second fixing bracket and a joint, wherein,

[0011] The second fixing bracket is detachably fixed on the first fixing bracket, and the two enclose to form the clamping cavity and the second through hole;

[0012] The joint is detachably fixed on the first fixing bracket, and the first through hole is arranged in the joint.

[0013] More preferably, the joint is connected to the first fixing bracket by thread fit, and a caliper groove is arranged on its side wall.

[0014] More preferably, the first through hole includes a fixing hole and a connecting hole, wherein,

[0015] The fixing hole is arranged at one end of the joint away from the first fixing bracket, and the corrugated pipe is arranged in the fixing hole;

[0016] The connecting hole is arranged at one end of the joint close to the first fixing bracket, and is coaxially arranged and communicated with the fixing hole. The inner diameter of the connecting hole is smaller than the inner diameter of the fixing hole, and the end of the corrugated pipe abuts against one end of the fixing hole close to the connecting hole.

[0017] More preferably, a perspective hole is arranged on the circumferential side of the joint, and the perspective hole communicates with the fixing hole.

[0018] Based on the above technical solutions, preferably, the fixing bracket further includes a plurality of fixing bolts, and the first fixing bracket and the second fixing bracket are detachably fixedly connected by the fixing bolts.

[0019] More preferably, the fixing bolt includes a screw rod, a screw head and a nut, wherein,

[0020] The screw rod penetrates and is slidably arranged in the first fixing bracket and the second fixing bracket;

[0021] On one side of the first fixing bracket away from the second fixing bracket, a hidden groove is provided. The screw head is fixedly arranged at one end of the screw rod and is located in the hidden groove, and the screw head is in abutment with the hidden groove. Moreover, a control groove is provided on the side of the screw head away from the screw rod.

[0022] On one side of the second fixing bracket away from the first fixing bracket, a receiving groove is provided. The nut is connected to the screw rod by thread fit and is located in the receiving groove, and the nut is in abutment with the receiving groove.

[0023] More preferably, the inner wall of the receiving groove is in abutment with two opposite circumferential sides of the nut.

[0024] More preferably, the receiving groove penetrates to the circumferential side of the second fixing bracket.

[0025] Based on the above technical solutions, preferably, two steel wire ropes are provided, and the core wire is arranged in the middle of the two steel wire ropes.

[0026] Two second through holes are provided and correspond to the two steel wire ropes one by one, and the center line of the second through hole is parallel to the center line of the flat housing.

[0027] The Gray busbar end sheath of the present utility model has the following beneficial effects compared with the prior art:

[0028] (1) By providing the clamping cavity and the second through hole, the end sheath can be fixed to the end of the flat housing and the steel wire rope. By providing the first through hole and the corrugated pipe, the core wire can be wrapped and protected, which can not only prevent the core wire from leaking, but also allow the core wire to bend freely, thus ensuring the safe operation of the Gray busbar.

[0029] (2) By providing the first fixing bracket, the second fixing bracket and the joint, the disassembly and assembly of the fixing bracket can be facilitated, thereby improving the installation convenience of the end sheath and the Gray busbar.

[0030] (3) By providing the receiving groove and the hidden groove, not only the disassembly and assembly of the fixing bolt can be facilitated, but also the fixing bolt can be prevented from leaking, and the smoothness of the outer wall of the end sheath is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 is a perspective view of the end sheath of the Gray busbar of the present utility model;

[0033] Figure 2 is a cross-sectional view of the end sheath of the Gray busbar of the present utility model;

[0034] Figure 3 is an exploded view of the end sheath of the Gray busbar of the present utility model;

[0035] Figure 4 is a cross-sectional view of the joint in the end sheath of the Gray busbar of the present utility model;

[0036] Figure 5 is a cross-sectional view of the fixed bolt in the end sheath of the Gray busbar of the present utility model.

[0037] Wherein: 1, fixing frame; 11, first fixing frame; 12, second fixing frame; 13, joint; 14, fixing bolt; 141, screw rod; 142, screw head; 143, nut; 101, clamping cavity; 102, first through hole; 103, second through hole; 104, caliper groove; 105, perspective hole; 106, hidden groove; 107, accommodating groove; 108, control groove; 1021, fixing hole; 1022, connecting hole; 2, bellows; 3, Gray busbar; 31, flat shell; 32, core wire; 33, steel wire rope. Detailed implementation manners

[0038] Next, in combination with the detailed implementation manners of the present utility model, the technical solutions in the present utility model will be clearly and completely described. Obviously, the described implementation manners are only a part of the implementation manners of the present utility model, rather than all of the implementation manners. Based on the implementation manners in the present utility model, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0039] The Gray busbar 3 includes a flat shell 31, a core wire 32 and a steel wire rope 33. The flat shell 31 is the shell structure of the Gray busbar 3, which is flat. The core wire 32 is the address wire of the Gray busbar 3. The steel wire rope 33 is used to tension and fix the Gray busbar 3. Both the core wire 32 and the steel wire rope 33 are fixedly penetrated in the flat shell 31, and the ends of the core wire 32 and the steel wire rope 33 both extend out of the end of the flat shell 31 so as to enable the Gray busbar 3 to be connected and fixed to other devices.

[0040] As Figures 1-5 shown, the end sheath of the Gray busbar of the present utility model includes a fixing frame 1 and a bellows 2, which are used to protect the end of the Gray busbar 3.

[0041] Among them, the fixing bracket 1 is used for fixedly connecting with the end of the Gray busbar 3. A clamping cavity 101 is formed on one side of the fixing bracket 1, and the cross-section of the clamping cavity 101 is flat to adapt to the shape of the flat outer shell 31. A first through hole 102 and a second through hole 103 are formed on the other side of the fixing bracket 1, and both the first through hole 102 and the second through hole 103 communicate with the clamping cavity 101.

[0042] One end of the corrugated pipe 2 is fixedly arranged in the first through hole 102; as Figures 1-3 shown, the end of the flat outer shell 31 is hermetically fixed in the clamping cavity 101, so that the flat outer shell 31 can be inserted into the fixing bracket 1; the steel wire rope 33 is arranged through the second through hole 103, so that the side wall of the steel wire rope 33 can be abutted and fixed against the inner wall of the second through hole 103, or a buckle can be arranged on the outer side of the steel wire rope 33 to make the buckle abut against the outer wall of the fixing bracket 1, so that the steel wire rope 33 is fixedly connected with the fixing bracket 1, realizing the fixation of the fixing bracket 1 and the end of the Gray busbar 3; the core wire 32 is arranged through the corrugated pipe 2, and the corrugated pipe 2 is used to wrap and protect the core wire 32, which can avoid the hidden danger of water ingress or dust accumulation caused by the exposure of the core wire 32. At the same time, since the corrugated pipe 2 has bending ability and telescopic ability, it will not only not limit the bending of the core wire 32, but also avoid the exposure of the core wire 32. Therefore, this end head sheath can ensure the safe operation and normal use of the Gray busbar 3.

[0043] As Figure 3 shown, the fixing bracket 1 includes a first fixing bracket 11, a second fixing bracket 12, a joint 13 and a plurality of fixing bolts 14. Among them, the second fixing bracket 12 is detachably fixed on the first fixing bracket 11. Specifically, it is preferably that the first fixing bracket 11 and the second fixing bracket 12 are detachably fixedly connected by the fixing bolts 14, and the first fixing bracket 11 and the second fixing bracket 12 enclose to form the clamping cavity 101 and the second through hole 103; the joint 13 is detachably fixed on the first fixing bracket 11, and the first through hole 102 is formed in the joint 13; with this split structure design, it is convenient for this end head sheath to fix the flat outer shell 31 and the steel wire rope 33.

[0044] For the formation of the second through hole 103 and the clamping cavity 101, corresponding grooves can be respectively arranged on the side of the first fixing bracket 11 close to the second fixing bracket 12 and the side of the second fixing bracket 12 close to the first fixing bracket 11. When the first fixing bracket 11 and the second fixing bracket 12 are fitted together, their corresponding grooves are combined to form the second through hole 103 and the clamping cavity 101.

[0045] As Figure 3As described above, a threaded hole is provided on the first fixing bracket 11, and the outer side of the joint 13 is provided with threads. The joint 13 is connected to the first fixing bracket 11 by threaded fit, thereby realizing the detachable fixed connection between the joint 13 and the first fixing bracket 11. A caliper groove 104 is provided on the side wall of the joint 13, and the bottom surface of the caliper groove 104 is flat, so as to facilitate the adaptation to tools such as calipers or wrenches to facilitate the rotation of the joint 13.

[0046] As Figure 4 shown, the first through hole 102 includes a fixing hole 1021 and a connecting hole 1022. Among them, the fixing hole 1021 is provided at one end of the joint 13 away from the first fixing bracket 11, and the corrugated pipe 2 is arranged in the fixing hole 1021; the connecting hole 1022 is provided at one end of the joint 13 close to the first fixing bracket 11, and is coaxially arranged and communicated with the fixing hole 1021. The inner diameter of the connecting hole 1022 is smaller than the inner diameter of the fixing hole 1021. As Figure 2 shown, the end of the corrugated pipe 2 abuts against one end of the fixing hole 1021 close to the connecting hole 1022, which not only ensures the fixed connection between the corrugated pipe 2 and the joint 13, but also prevents the corrugated pipe 2 from extending into the clamping cavity 101.

[0047] As Figure 3 shown, a perspective hole 105 is provided on the circumferential side of the joint 13, and the perspective hole 105 is communicated with the fixing hole 1021. It is not only possible to monitor the assembly position of the corrugated pipe 2 and the joint 13 in real time through the perspective hole 105, but also the friction area between the two can be reduced by using the perspective hole 105 to reduce friction loss.

[0048] As Figure 5 shown, the fixing bolt 14 includes a screw rod 141, a screw head 142 and a nut 143. Among them, the screw rod 141 penetrates and is slidably arranged in the first fixing bracket 11 and the second fixing bracket 12; a hidden groove 106 is provided on one side of the first fixing bracket 11 away from the second fixing bracket 12. The screw head 142 is fixedly arranged at one end of the screw rod 141 and is located in the hidden groove 106, and the screw head 142 abuts against the hidden groove 106; a receiving groove 107 is provided on one side of the second fixing bracket 12 away from the first fixing bracket 11. The nut 143 is connected to the screw rod 141 by threaded fit and is located in the receiving groove 107, and the nut 143 abuts against the receiving groove 107. By using the nut 143 and the screw head 142 to abut against the inner walls of the receiving groove 107 and the hidden groove 106 respectively, the first fixing bracket 11 and the second fixing bracket 12 can be clamped and fixed. At the same time, since the nut 143 and the screw head 142 are respectively located in the receiving groove 107 and the hidden groove 106, the fixing bolt 14 is also prevented from protruding to the outer wall of the fixing bracket 1, which can play a role in improving the smoothness of the outer wall of the fixing bracket 1.

[0049] On one side of the screw head 142 away from the screw rod 141, a manipulation groove 108 is provided. The manipulation groove 108 can be a slotted screw, a Phillips screw or a hexagonal groove, so that a tool can be inserted into the manipulation groove 108 to rotate the screw head 142.

[0050] As Figure 1 shown, the inner wall of the accommodation groove 107 abuts against two opposite circumferential sides of the nut 143. By using its abutting effect, when the screw head 142 is rotated, the nut 143 will not be driven to rotate synchronously, thus facilitating the tightening and disassembly operations of the fixing bolt 14 and improving the usability of the present end sheath.

[0051] As Figure 1 shown, the accommodation groove 107 penetrates to the circumferential side of the second fixing bracket 12. When the nut 143 is separated from the screw rod 141, the nut 143 can not only slide axially along the screw rod 141 for disassembly, but also slide radially along the screw rod 141 to disengage the nut 143 from the second fixing bracket 12 and the accommodation groove 107, improving the disassembly efficiency of the fixing bolt 14.

[0052] As Figure 3 shown, two steel wire ropes 33 are provided. The core wire 32 is arranged in the middle of the two steel wire ropes 33. Two second through holes 103 are provided and correspond to the two steel wire ropes 33 one by one, thus improving the fixing firmness and stability between the fixing bracket 1 and the Gray busbar 3. The center line of the second through hole 103 is parallel to the center line of the flat housing 31, thus facilitating the assembly of the fixing bracket 1 and the Gray busbar 3.

[0053] The usage method of the Gray busbar end sheath of the present utility model is as follows:

[0054] As Figure 3 shown, first, it is fixed on the first fixing bracket 11 by rotating the joint 13. One end of the corrugated pipe 2 is inserted into the inside of the joint 13. Then, the end of the flat housing 31 is placed at the position corresponding to the clamping cavity 101 inside the first fixing bracket 11. The steel wire rope 33 is placed at the position corresponding to the second through hole 103 inside the first fixing bracket 11, and the core wire 32 is made to pass through the joint 13 and the corrugated pipe 2 in sequence. Then, the second fixing bracket 12 is buckled on the first fixing bracket 11, and the first fixing bracket 11 and the second fixing bracket 12 are fixed by using the fixing bolt 14. Finally, the steel wire rope 33 is connected to the fixing device, and the core wire 32 is passed out of the end of the corrugated pipe 2 away from the fixing bracket 1 and connected to the address coding cabinet or the terminal box.

[0055] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Grey busbar end sheath, used for protecting the end of the Grey busbar (3), characterized in that: It includes a fixing bracket (1) and a corrugated pipe (2), wherein, On one side of the fixing bracket (1), a clamping cavity (101) is formed, and on the other side, a first through hole (102) and a second through hole (103) are formed. Moreover, the first through hole (102) and the second through hole (103) are both communicated with the clamping cavity (101); One end of the corrugated pipe (2) is fixedly arranged in the first through hole (102); The Gray busbar (3) includes a flat outer shell (31), a core wire (32) and a steel wire rope (33). The end of the flat outer shell (31) is hermetically fixed in the clamping cavity (101); the core wire (32) and the steel wire rope (33) are both fixedly arranged through the flat outer shell (31), and the core wire (32) is arranged through the corrugated pipe (2), and the steel wire rope (33) is arranged through the second through hole (103).

2. The Gray busbar end sheath according to claim 1, characterized in that: The fixing bracket (1) includes a first fixing bracket (11), a second fixing bracket (12) and a joint (13), wherein, The second fixing bracket (12) is detachably fixed on the first fixing bracket (11), and the two enclose to form the clamping cavity (101) and the second through hole (103); The joint (13) is detachably fixed on the first fixing bracket (11), and the first through hole (102) is formed in the joint (13).

3. The Gray busbar end sheath according to claim 2, characterized in that: The joint (13) is connected to the first fixing bracket (11) by thread fit, and a caliper groove (104) is formed on its side wall.

4. The Gray busbar end sheath according to claim 3, characterized in that: The first through hole (102) includes a fixing hole (1021) and a connecting hole (1022), wherein, The fixing hole (1021) is formed at one end of the joint (13) far from the first fixing bracket (11), and the corrugated pipe (2) is arranged in the fixing hole (1021); The connecting hole (1022) is formed at one end of the joint (13) close to the first fixing bracket (11), and is coaxially arranged and communicated with the fixing hole (1021). The inner diameter of the connecting hole (1022) is smaller than the inner diameter of the fixing hole (1021), and the end of the corrugated pipe (2) abuts against one end in the fixing hole (1021) close to the connecting hole (1022).

5. The Gray busbar end sheath according to claim 4, characterized in that: A perspective hole (105) is formed on the circumferential side of the joint (13), and the perspective hole (105) is communicated with the fixing hole (1021).

6. The Gray busbar end sheath according to claim 2, characterized in that: The fixing bracket (1) further includes a plurality of fixing bolts (14), and the first fixing bracket (11) and the second fixing bracket (12) are detachably fixedly connected by the fixing bolts (14).

7. The Gray busbar end sheath according to claim 6, characterized in that: The fixing bolt (14) includes a screw rod (141), a screw head (142) and a nut (143), wherein, The screw rod (141) penetrates and is slidably arranged in the first fixing bracket (11) and the second fixing bracket (12); A hidden groove (106) is formed on one side of the first fixing bracket (11) away from the second fixing bracket (12). The screw head (142) is fixedly arranged at one end of the screw rod (141), located in the hidden groove (106), and the screw head (142) abuts against the hidden groove (106). Moreover, a control groove (108) is formed on one side of the screw head (142) away from the screw rod (141). A receiving groove (107) is formed on one side of the second fixing bracket (12) away from the first fixing bracket (11). The nut (143) is threadedly connected to the screw rod (141), located in the receiving groove (107), and the nut (143) abuts against the receiving groove (107).

8. The Gray busbar end sheath according to claim 7, characterized in that: The inner wall of the receiving groove (107) abuts against two opposite circumferential sides of the nut (143).

9. The Gray busbar end sheath according to claim 8, characterized in that: The receiving groove (107) penetrates through to the circumferential side of the second fixing bracket (12).

10. The Gray busbar end sheath according to claim 1, characterized in that: There are two steel wire ropes (33), and the core wire (32) is arranged between the two steel wire ropes (33). There are two second through holes (103), which correspond to the two steel wire ropes (33) one by one, and the center line of the second through hole (103) is parallel to the center line of the flat housing (31).

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