Cable self-positioning clamping structure

Abstract

The utility model discloses a cable self-positioning clamping structure, and belongs to the technical field of cable clamps. The clamping structure comprises a shell, and an insertion groove is formed in the shell in a penetrating mode. The bolt is inserted into the slot, two ends of the bolt are arc-shaped, one end with a smaller arc radius is an insertion end, and one end with a larger arc radius is a clamping end; the side wall grooves are formed in the small-area wall faces of the two sides of the inserting groove, and the side wall grooves extend to the opening in one end of the inserting groove to form arc transition side edges; wherein an arc-shaped groove is formed in the end part of the bolt with a larger arc radius. According to the utility model, when the optical cable is clamped, the optical cable can be clamped after being bent at a large radian, the optical cable can penetrate into the optical cable at a large bending radian when being inserted from the plugging end, and the optical cable can be lapped in the arc-shaped groove at a large bending radian after penetrating into the optical cable, so that the optical cable is uniformly stressed in the clamping process.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable self -positioning clamping structure belongs to cable clamp technical field. BACKGROUND

[0002] Cable is mainly used for connecting equipment, conveying power, and it includes optical cable, cable and various types. In the process of arrangement, the clamping structure is usually used to fix the cable.

[0003] In the prior art, the arrangement of the optical cable needs to consider the maximum bending radius of the optical cable itself, so as to ensure that the optical cable is in a good stress state after being clamped. In the process of clamping the optical cable, the traditional wire clamp will cause some distortion or deviation of the optical cable, resulting in uneven stress in the clamping process. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that the stress is uneven in the process of clamping the optical cable in the prior art.

[0005] The utility model takes the following technical scheme to solve the technical problem: a cable self-positioning clamping structure, which comprises a shell, a slot is arranged inside the shell, a plug pin is inserted into the slot, the plug pin is arc-shaped at both ends, one end with a smaller arc radius is an insertion end, and the other end with a larger arc radius is a clamping end, a side wall groove is arranged on the smaller wall surface on both sides of the slot to limit the cable, and the side wall groove extends to the opening at one end of the slot to form an arc transition side edge, wherein the end of the plug pin with a larger arc radius is provided with an arc-shaped groove, the arc-shaped groove is tangent to the side edge of the plug pin, and the cable to be clamped is bent into an arc shape and then inserted into the slot from one end of the slot and taken out from the other end of the slot and overlapped on the arc-shaped groove.

[0006] By adopting the above technical scheme, the optical cable can be clamped after being bent with a large arc, and the optical cable can be inserted with a large bending arc when inserted from the insertion end, and then overlapped in the arc-shaped groove with a large bending arc, thereby preventing uneven stress in the clamping process. Secondly, the side wall groove arranged on the side wall of the slot can automatically position the inserted optical cable, so that the optical cable can be automatically pushed to the middle of the side wall groove during the insertion of the plug pin into the slot, realizing self-positioning. At the same time, due to the arrangement of the side wall groove, the compression force of the cable core in the center of the optical cable is small when the optical cable is clamped, preventing the cable core from being damaged due to the large compression force of the plug pin.

[0007] The utility model is further provided with: the transition plate extends above the side direction groove on one side of the shell, and a transition groove is formed in the middle of the transition plate and communicates with the slot.

[0008] Through the above technical scheme, the optical cable clamped in the slot can be laid under the guidance of the transition groove, so that the arrangement of the optical cable is more reasonable.

[0009] The utility model further sets up: the overlap joint hole is set on the transition plate.

[0010] Through the above technical scheme, the overlap joint hole is used for suspending the shell to the installation positioning, and the overlap joint hole can make the wiring personnel more conveniently fix the whole clamping structure.

[0011] The utility model further sets up: the side wall recess of transition plate one side extends to the transition groove.

[0012] Through the above technical scheme, the connecting point between the side wall recess of transition plate one side and the transition groove is arc surface, so that the optical cable is not excessively oppressed after passing out from the side wall recess, so that the risk of damaging the optical cable can be reduced.

[0013] The utility model further sets up: the slot one end opening is less than the other end opening size.

[0014] Through the above technical scheme, the bolt can be more conveniently inserted in the slot, and the stable connection of the shell is realized, so that the bolt can be prevented from being loose.

[0015] The utility model further sets up: the plug end of bolt is inserted from the one end of slot opening, and passes out from the one end of slot opening.

[0016] Through the above technical scheme, the clamping of the optical cable does not need to be carried out from the end of the optical cable, the optical cable can be clamped in the middle part of the optical cable, and the optical cable can be clamped to the slot directly from the middle segment of the optical cable.

[0017] The utility model further sets up: the two sides of bolt are symmetrically provided with sunken groove, and the weight reduction hole is formed in the middle part of the sunken groove.

[0018] Through the above technical scheme, the weight of the bolt can be effectively reduced, the injection molding material is saved, and the cost is reduced.

[0019] The utility model further sets up: the shell is connected with the bolt through the connecting line.

[0020] Through the above technical scheme, the complicated mechanical fixing step is saved, and the assembly process is more simple and fast through the connection mode.

[0021] The utility model further sets up: the one side opening of the casing is provided with the circular arc transition surface recessed to the plug -in groove.

[0022] By adopting the above technical scheme, the plug pin can be conveniently pulled out, so that the maintenance personnel can quickly take out the clamped optical cable from the plug-in groove. The sunken groove arranged on the plug pin and the circular arc transition surface arranged on the casing form an ellipse, and the maintenance personnel can insert fingers into the ellipse to quickly pull out the plug pin.

[0023] The utility model has the advantages of:

[0024] By arranging the circular arc transition side edge and the circular arc groove, the optical cable can have a large bending radius when being inserted into the plug-in groove and being clamped, so that uneven stress during clamping of the optical cable can be avoided. When the middle section of the optical cable needs to be clamped during clamping of the optical cable, the length of the two ends of the optical cable is relatively long, so the optical cable can only be inserted into the lower end opening of the plug-in groove after being bent to a certain degree. Since the lower end opening of the plug-in groove is small, the optical cable needs to be bent to a large angle to be smoothly inserted. However, by arranging the circular arc transition side edge, the bending degree of the optical cable can be reduced, so that the optical cable can be inserted into the plug-in groove from the lower end opening of the plug-in groove with a large circular arc.

[0025] By arranging the side wall groove, the optical cable can be quickly positioned at the middle position of the side wall groove when being clamped. In addition, when the plug pin moves towards the plug-in groove to press the optical cable, the optical fiber at the center of the optical cable can be prevented from being subjected to a large pressing force, so that the risk of damage to the optical cable during installation can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0027] Figure 2 It is a plug pin three-dimensional structure schematic view of the utility model;

[0028] Figure 3 It is a three-dimensional structure schematic view of the utility model;

[0029] Figure 4 It is a schematic view of one of the embodiments of the utility model.

[0030] In the drawing: 1, casing; 2, plug-in groove; 201, side wall groove; 202, circular arc transition side edge; 3, plug pin; 301, plug-in end; 302, clamping end; 4, circular arc groove; 5, transition plate; 501, transition groove; 6, lap joint hole; 7, sunken groove; 8, weight-reducing hole; 9, connecting line; 10, circular arc transition surface; 11, elastic rod; 12, clamping block. DETAILED DESCRIPTION

[0031] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0032] like Figures 1-3 As shown, the cable self-positioning clamping structure includes a housing 1, a pin 3, and a side wall groove 201. A slot 2 is provided through the interior of the housing 1; the pin 3 is inserted into the slot 2, with both ends of the pin 3 being arc-shaped. The end with the smaller arc radius is the insertion end 301, and the end with the larger arc radius is the locking end 302. The side wall groove 201 is provided on the smaller area walls on both sides of the slot 2 to limit the cable. The side wall groove 201 extends to the opening at one end of the slot 2, forming an arc-shaped transition side 202. The end of the pin 3 with the larger arc radius has an arc-shaped groove 4, which is tangent to the side of the pin 3. The cable to be clamped is bent into an arc shape, enters from the opening at one end of the slot 2, exits from the opening at the other end of the slot 2, and overlaps the arc-shaped groove 4.

[0033] Furthermore, during the optical signal transmission process inside the optical fiber, if the bending radius of the optical cable is too small, it will lead to increased signal loss. Therefore, during the optical cable clamping process, when the optical cable is inserted from the plug end 301, it can be inserted with a larger bending arc, and after insertion, it can overlap within the arc-shaped groove 4 with a larger bending arc, which can effectively reduce optical signal loss and improve transmission performance.

[0034] Furthermore, in the specific implementation process, it is usually necessary to clamp one section of the optical cable. However, the clamping point is far away from the two ends of the optical cable, so it is difficult to insert the optical cable into the slot 2 from the end. Therefore, it is necessary to bend the optical cable into an arc of a certain degree, so that the bent arc can be inserted into the slot 2 inside the housing 1 from the lower opening of the slot 2. During the process of inserting the optical cable into the slot 2, the arc transition side 202 provided on the two side walls of the lower opening of the slot 2 allows the optical cable to be inserted into the slot 2 with a larger arc, preventing the optical cable from bending excessively when it is inserted into the slot 2.

[0035] Secondly, the side wall groove 201 provided on the side wall of slot 2 can automatically position the inserted optical cable, so that when the pin 3 is inserted into slot 2, the optical cable can be automatically pushed to the middle of the side wall groove 201 to achieve self-positioning. At the same time, due to the setting of the side wall groove 201, the compression force on the cable core at the center of the optical cable is small when it is clamped, preventing the pin 3 from pressing too hard and damaging the cable core.

[0036] Specifically, the side wall groove 201 is arranged on the wall surface with smaller area of the insertion slot 2, and the depth of the side wall groove 201 increases from both sides to the center, thereby forming a groove shape with V-shaped cross section. When the optical cable is inserted into the groove, the plug 3 continuously extrudes the optical cable, and the optical cable gradually slides along the inclined surface of the side wall groove 201 to the center of the side wall groove 201, and finally is limited to the deepest point in the middle of the side wall groove 201.

[0037] Further, the plug 3 is arranged to be large at one end and small at the other end, and the circular arc groove 4 is arranged at the end with larger circular arc radius, which is used for lapping the optical cable, thereby preventing the optical cable from being damaged due to the smaller lapping radius of the plug 3 after the optical cable is lapped on the plug 3.

[0038] Further, the transition plate 5 extends from one side of the shell 1 to the upper side of the groove, and the transition groove 501 is arranged in the middle of the transition plate 5 and communicates with the insertion slot 2. The optical cable clamped in the insertion slot 2 can be routed under the guidance of the transition groove 501, so that the arrangement of the optical cable is more reasonable. The lapping hole 6 is arranged through the transition plate 5. Through the lapping hole 6, the wiring personnel can more conveniently fix the entire clamping structure.

[0039] The side wall groove 201 arranged on one side of the transition plate 5 extends upward into the transition groove 501. The connecting point between the side wall groove 201 arranged on one side of the transition plate 5 and the transition groove 501 is an arc surface, so that the optical cable is not excessively compressed after passing out of the side wall groove 201, thereby reducing the risk of damage to the optical cable.

[0040] One end of the insertion slot 2 has smaller opening than the other end. The insertion end 301 of the plug 3 is inserted from the end of the insertion slot 2 with larger opening and passes out from the end of the insertion slot 2 with smaller opening. The clamping of the optical cable does not need to be performed from the end of the optical cable, but can be performed on the middle part of the optical cable, and the optical cable can be clamped into the insertion slot 2 directly from the middle segment of the optical cable.

[0041] Further, the sunken groove 7 is symmetrically arranged on both sides of the plug 3, and the weight-reducing hole 8 is arranged through the middle of the sunken groove 7. The weight of the plug 3 can be effectively reduced, the injection molding material can be saved, and the cost can be reduced. The connecting line 9 is connected between the shell 1 and the plug 3, so that the assembly process is more simple and fast.

[0042] In an embodiment, the side of the shell 1 provided with the transition plate 5 is provided with a circular arc transition surface 10 recessed into the slot 2. The number of the sunken grooves 7 is three, which are respectively arranged at the clamping end 302 and the insertion end 301 of the plug 3 and the middle part. The inner side wall surface of the sunken groove 7 arranged at the clamping end 302 of the plug 3 close to the direction of the circular arc groove 4 is parallel to the arc surface of the circular arc groove 4. When the plug 3 is inserted into the slot 2, the sunken groove 7 arranged at the clamping end 302 and the circular arc transition surface 10 form an ellipse. When the staff needs to overhaul the clamping structure, the staff can quickly pull out the plug 3 from the slot 2 by clamping the finger into the ellipse, so as to facilitate the staff to install and maintain the plug 3.

[0043] In an embodiment, as shown in Figure 4 The number of the weight-reducing holes 8 and the sunken grooves 7 arranged on the two surfaces of the plug 3 is three. The weight-reducing hole 8 close to the clamping end position is provided with the elastic rod 11. The two ends of the elastic rod 11 are respectively connected with the clamping block 12 capable of being completely clamped into the sunken groove 7. The elastic rod 11 is fixed in the weight-reducing hole 8, and the two ends of the elastic rod 11 can automatically pop out. The part of the thickness of the clamping block 12 is normally pushed out of the sunken groove 7 by the elastic rod 11. After the plug 3 is inserted into the slot 2, the clamping block 12 can be clamped to the side opening at the bottom of the slot 2, so as to prevent the plug 3 from automatically falling off.

[0044] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments. Various changes and improvements can be made without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cable self-positioning clamping structure, characterized in that, include: The housing (1) has a slot (2) running through its interior; The pin (3) is inserted into the slot (2). The two ends of the pin (3) are arc-shaped. The end with a smaller arc radius is the insertion end (301), and the end with a larger arc radius is the snap-fit ​​end (302). Side wall grooves (201) are provided on the smaller wall surfaces on both sides of the slot (2) to limit the cable. The side wall grooves (201) extend to the opening at one end of the slot (2) to form an arc transition side (202). The snap-fit ​​end (302) is provided with an arc-shaped groove (4), which is tangent to the side of the pin (3). The cable to be clamped is bent into an arc shape and then passes through the opening at one end of the slot (2), and passes through the opening at the other end of the slot (2) and overlaps the arc-shaped groove (4).

2. The cable self-positioning clamping structure according to claim 1, characterized in that: A transition plate (5) extends from one side of the housing (1) upwards into the groove, and a transition groove (501) communicating with the slot (2) is provided in the middle of the transition plate (5).

3. The cable self-positioning clamping structure according to claim 2, characterized in that: The transition plate (5) is provided with an overlapping hole (6).

4. The cable self-positioning clamping structure according to claim 2, characterized in that: The sidewall groove (201) provided on one side of the transition plate (5) extends upward into the transition groove (501).

5. The cable self-positioning clamping structure according to claim 1, characterized in that: The slot (2) has an opening at one end that is smaller than the opening at the other end.

6. The cable self-positioning clamping structure according to claim 1, characterized in that: The insertion end (301) of the pin (3) is inserted into the end with the larger opening of the slot (2) and then exits from the end with the smaller opening of the slot (2).

7. The cable self-positioning clamping structure according to claim 1, characterized in that: The pin (3) has a recessed groove (7) symmetrically opened on both sides, and a weight reduction hole (8) is opened through the middle of the recessed groove (7).

8. The cable self-positioning clamping structure according to claim 1, characterized in that: A connecting line (9) is connected between the housing (1) and the pin (3).

9. The cable self-positioning clamping structure according to claim 2, characterized in that: The housing (1) has an opening on one side of the transition plate (5) with an arc transition surface (10) that is recessed into the slot (2).

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