Cable grippers and cable restraint boxes

Abstract

The utility model discloses a kind of cable clamp and cable constraint box, its technical scheme main point is a kind of cable clamp, comprising: No. 1 clamp and No. 2 clamp, two clamps one end rotationally connected, the other end is fixed after butt joint using thread;Clamping ring, it is divided into two half rings, for clamping cable;Baffle ring, fixed in No. 1 clamp and No. 2 clamp two ends, for the baffle ring both ends of clamping ring are kept apart and limit clamping ring to separate;Clamping ring is equipped with multiple circular compression ring, circular compression ring is divided into two and both are located in two half rings, circular compression ring is fixed with the protruding piece for the surface of cable and is pressed tightly;Cable constraint box includes cable clamp;The protruding piece of using clamping ring is pressed into the surface of cable, clamping ring is tightly pressed and locked, so that cable clamp and cable do not occur relative sliding;Cable constraint box, including the box body of winding guy, the outgoing end of box body is fixed with connection end, include the cable clamp, the two clamps of cable clamp and connection end are fixedly connected.

Description

Technical Field

[0001] This utility model relates to cable clamps and cable restraint boxes. Background Technology

[0002] Charging stations are devices installed in above-ground or underground parking lots to provide electricity for electric vehicles. After charging, there is a risk of damage to the charging cable and charging head from vehicles because users forget to put the charging gun back in its holder or fail to pull the cable back to a safe charging position in time.

[0003] Therefore, balancers began to be installed on charging piles, as seen in Chinese patent CN221541284U, "A Multifunctional DC Charging Pile," which... Figure 1 The text states that "the DC charging pile cabinet includes a front door, a left door, and a right door, and a balancer is respectively installed above the left door and above the right door" and "the balancer is used to suspend the charging gun cable".

[0004] The lower end of the balancer is equipped with a collar that fits onto the cable. Traditional collars use friction and cable clamping to secure the cable. This type of collar provides reliable fixation for the oil pipe. However, the cable has a large number of metal wires inside, making it heavy. The collar cannot stably clamp the cable, and after long-term use, the cable is prone to relative slippage within the collar. Utility Model Content

[0005] The purpose of this invention is to provide a cable clamp that uses a clamping ring with protrusions to press into the cable sheath, and the clamping ring tightly presses and locks the cable, so that the cable clamp and the cable will not slide relative to each other.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A cable clamp includes: a first clamp and a second clamp, one end of which is rotatably connected, and the other end is threaded and fixed; a clamping ring, which is fitted inside the two clamps and can rotate within the two clamps, and is divided into two half-rings for clamping the cable; a retaining ring, which is fixed to the two ends of the first clamp and the second clamp, and is used to block the clamping ring from detaching; the clamping ring is provided with multiple circular pressure rings, each circular pressure ring is divided into two halves and located in the two half-rings respectively, and the circular pressure rings are fixed with protrusions for pressing the surface of the cable.

[0007] Preferably, the end face of the protrusion facing the cable is spherical.

[0008] Preferably, for the half-rings of the clamping ring, the protrusions on the same half-ring face the same direction; and the protrusions on the two half-rings are arranged facing each other.

[0009] Preferably, the splicing surface of the two semi-rings is a plane, and positioning pins and positioning holes are respectively provided on the two splicing surfaces.

[0010] Preferably, the two semi-rings are fixed with screws at the splicing position.

[0011] Preferably, there are multiple circular pressure rings, with two circular pressure rings protruding from both ends of the clamping ring, and the remaining circular pressure rings located on the inner wall of the clamping ring.

[0012] Preferably, the circular pressure ring at the end of the clamping ring and the hole formed by the two clamps are adapted to each other.

[0013] Preferably, the cable restraint box includes a box body for winding and pulling the cable, with a connecting end fixed to the cable outlet end of the box body, and includes the cable clamp, with two clamps of the cable clamp and the connecting end fixedly connected.

[0014] In summary, this utility model has at least one of the following beneficial effects: The charging cable has a thick surface and a slight deformation capability. The protrusion of the clamping ring is pressed into the cable sheath, and the clamping ring is tightly pressed and locked, so that the clamp and the cable will not slip relative to each other. The top of the protrusion is spherical to ensure that the top pressing end is not prone to sharp points, so as to avoid the protrusion puncturing the cable sheath. Attached Figure Description

[0015] Figure 1 This is an exploded view of the clamping ring in the embodiment; Figure 2 yes Figure 1 Enlarged view of part A in the image; Figure 3 This is an exploded view of the clamping and clamping mechanism in the embodiment; Figure 4 This is a schematic diagram of the two clamps unfolded in the embodiment; Figure 5 This is a side view of the clamping ring in the embodiment; Figure 6 yes Figure 5 Sectional view at point BB in the middle; Figure 7 yes Figure 6 Enlarged view of section C in the image; Figure 8 This is a schematic diagram of the cable restraint box in the embodiment; Figure 9 This is a schematic diagram of the cable restraint box installed on the charging pile in the embodiment.

[0016] In the picture: 1. Number one clamp; 2. No. 2 clamp; 3. Retaining ring; 4. Clamping ring; 41. Half ring; 42. Threaded hole; 5. Circular pressure ring; 6. Bump; 61. Spherical surface; 71. Positioning pin; 72. Positioning hole; 8. Box body; 81. Connecting end; 91. Horizontal hole; 92. Insert block; 93. Cover; 94. Spring; 95. Bevel; 96. Slide groove. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Example 1, a cable clamp, referring to Figure 1 It includes: a clamping ring 4, which is made of plastic and has a perforation. The clamping ring 4 is divided into two half rings 41, and the two half rings 41 are spliced ​​together to clamp the cable.

[0019] The clamping ring 4 is provided with four circular pressure rings 5. The circular pressure rings 5 ​​are arranged facing the inside of the clamping ring 4. The circular pressure rings 5 ​​are also symmetrically separated, each divided into two halves, and each half is located in one half of the ring 41. The inner ring of the circular pressure ring 5 is fixed with a protrusion 6, and the end face of the protrusion 6 facing the cable is a spherical surface 61; For a half ring 41, the main body of the half ring 41, the half circular pressure ring 5, and the protrusion 6 are integrally injection molded.

[0020] For the half-ring 41 of the clamping ring 4, the protrusions 6 on the same half-ring 41 face the same direction; and the protrusions 6 on the two half-rings 41 are arranged facing each other. Therefore, when the two half-rings 41 clamp the cable, the protrusions 6 on both sides clamp the cable in opposite directions.

[0021] The splicing surfaces of the two semi-rings 41 are flat. After the two semi-rings 41 are spliced ​​together, they form a complete clamping ring 4, and the circular pressure ring 5 is also spliced ​​together in the same position. Threaded holes 42 and through holes are provided on both sides of the two half rings 41. Screws can be inserted into the through holes and the corresponding threaded holes 42 to connect and fix the two half rings 41. The clamping ring 4 can be fixed by four screws on both sides.

[0022] The splicing surfaces of the two semi-rings 41 are respectively provided with positioning pins 71 and positioning holes 72 for positioning and insertion; When the two semi-rings 41 are spliced ​​together, positioning pins 71 and positioning holes 72 are used on both sides of the semi-rings 41 to achieve insertion and positioning.

[0023] Therefore, during installation, two semi-rings 41 are fitted onto both sides of the cable, and the positioning holes 72 and positioning posts 71 achieve initial positioning. Then, the clamping ring 4 is clamped to the cable by screws. During the clamping process of the semi-rings 41, the protrusions 6 of the circular pressure ring 5 are pressed into the cable sheath. The protrusion of the protrusion 6 relative to the circular pressure ring 5 is less than 1mm. In this embodiment, the protrusion of the protrusion 6 is 0.2mm. In other embodiments, the protrusion can be 0.4mm, 0.5mm, or 0.6mm, etc.

[0024] When the clamping ring 4 clamps the cable, the inner ring of the circular pressure ring 5 clamps the cable sheath with frictional locking, while the protrusion 6 slightly presses the cable sheath in. The cable sheath will slightly deform to cooperate with the protrusion 6 pressing in, and the protrusion 6 presses the cable sheath in to lock it in place.

[0025] After clamping ring 4 is fixed, two more clamps need to be fitted on the outside; Reference Figure 3 and Figure 4 and Figure 5 It includes: clamp 1 and clamp 2. One end of clamp 1 and clamp 2 are connected by a rotating shaft to realize the rotation and opening of the two clamps.

[0026] The other ends of clamp 1 and clamp 2 are fixed with protruding ear plates, and the two ear plates are locked together by bolts and nuts.

[0027] Both the upper and lower ends of clamp 1 and clamp 2 are fixed with retaining rings 3. After clamp 1 and clamp 2 are spliced ​​together, retaining rings 3 are spliced ​​together to form a complete ring, thereby achieving separation between the upper and lower ends of the spliced ​​clamps.

[0028] When the clamping ring 4 is surrounded by two clamps, the retaining rings 3 arranged above and below the clamps separate the upper and lower end faces of the clamping ring 4. This arrangement prevents the clamping ring 4 from detaching from the clamps, but ensures that the clamping ring 4 has a certain degree of rotational freedom within the two clamps. Since the cable will twist when the cable is pulled, the rotational freedom between the clamping ring 4 and the clamps can reduce the twisting of the two clamps with the cable.

[0029] There are four circular pressure rings 5 ​​inside the clamping ring 4. Two of the circular pressure rings 5 ​​protrude from both ends of the clamping ring 4, while the two middle circular pressure rings 5 ​​are located on the inner wall of the clamping ring 4. The circular pressure rings 5 ​​protruding from the ends are designed to make it easier for the user to grip the clamping ring 4 inside the clamp, as the outward protrusion of the circular pressure rings 5 ​​at the ends makes it more convenient for the user to grip.

[0030] The circular pressure ring 5 located at the end of the clamping ring 4 and the hole formed by the two clamps are compatible with each other, and the two can be easily inserted and rotate relative to each other.

[0031] Example 2, a cable clamp, differs from Example 1 in that, referring to... Figures 5-7 A transverse hole 91 is provided on one side of the positioning hole 72, and the positioning hole 72 and the transverse hole 91 are connected. The cross-section of the transverse hole 91 is square. A plug 92 slides inside the transverse hole 91. A cap 93 is threaded to the other end of the transverse hole 91. A spring 94 abuts between the cap 93 and the plug 92. The spring 94 pushes the plug 92 into the positioning hole 72. One end of the insert 92 is a bevel 95. When the positioning pin 71 is inserted into the positioning hole 72, the end of the positioning pin 71 presses against the bevel 95, causing the insert 92 to retract into the transverse hole 91. The side of the positioning post 71 is provided with a sliding groove 96, and one end of the sliding groove 96 is sealed.

[0032] When the insert 92 and the slide 96 are aligned, the insert 92 is inserted into the slide 96 under the drive of the spring 94. When the positioning post 71 needs to slide out of the positioning hole 72, the flat end of the insert 92 and the blocking end of the slide 96 abut against each other to restrict the positioning post 71 from sliding out.

[0033] The cap 93 can be unscrewed from the other end of the horizontal hole 91 using a screwdriver.

[0034] In operation, after the two half-rings 41 are initially joined together, the limiting action of the insert block 92 prevents the two half-rings 41 from separating. At this time, the user does not need to hold down the two half-rings 41 and can concentrate on locking the two half-rings 41 with screws.

[0035] If it is necessary to remove the semi-ring 41 later, unscrew the cover 93, pour out the spring 94, and the insert 92 will also be poured out at the same time, and the locking relationship of the insert 92 will disappear.

[0036] Example 3, cable restraint box, which includes the cable clamp of Example 1 or Example 2, see reference. Figures 8-9 The device includes a metal housing, and inside the housing is a balancer for winding up a metal wire. Self-winding balancers are existing technology in this field and will not be described in detail here.

[0037] The outlet end of the box 8 allows the metal wire to extend out; the metal wire is fixed with a connecting end 81, and the metal wire and the connecting end 81 are pressed and fixed together by glue and screws; The two clamps are fixedly connected by bolts and connecting end 81.

[0038] The box 8 can be fixed to the charging station with screws. When the user charges with the charging gun, the cable pulls on the metal wire of the box 8. After charging is completed, the metal wire of the box 8 automatically retracts, pulling the charging gun and cable back, which has the effect of restraining the cable.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cable clamp, characterized in that, include: No. 1 clamp (1) and No. 2 clamp (2) are connected by rotation at one end and fixed by thread at the other end after docking; The clamping ring (4) is fitted inside two clamps and can rotate inside the two clamps. It is divided into two half rings (41) for clamping cables. The retaining ring (3) is fixed at both ends of the first clamp (1) and the second clamp (2) to block and restrict the clamping ring (4) from detaching. The clamping ring (4) is provided with multiple circular pressure rings (5). The circular pressure rings (5) are divided into two parts and are located in two half rings (41) respectively. The circular pressure rings (5) are fixed with protrusions (6) for pressing the surface of the cable.

2. The cable clamp according to claim 1, characterized in that: The end face of the protrusion (6) facing the cable is a spherical surface (61).

3. The cable clamp according to claim 1, characterized in that: For the half rings (41) of the clamping ring (4), the protrusions (6) on the same half ring (41) face the same direction; and the protrusions (6) on the two half rings (41) are arranged facing each other.

4. The cable clamp according to claim 1, characterized in that: The splicing surfaces of the two semi-rings (41) are flat, and positioning pins (71) and positioning holes (72) for positioning and interlocking are respectively provided on the two splicing surfaces.

5. The cable clamp according to claim 4, characterized in that: The two semi-rings (41) are fixed with screws at the splicing position.

6. The cable clamp according to claim 1, characterized in that: There are multiple circular pressure rings (5), two of which protrude from both ends of the clamping ring (4), while the remaining circular pressure rings (5) are located on the inner wall of the clamping ring (4).

7. The cable clamp according to claim 6, characterized in that: The circular pressure ring (5) located at the end of the clamping ring (4) and the hole formed by the two clamps are adapted to each other.

8. The cable clamp according to claim 4, characterized in that: A transverse hole (91) is provided on one side of the positioning hole (72). The positioning hole (72) and the transverse hole (91) are connected. An insert (92) slides in the transverse hole (91). A spring (94) is provided in the transverse hole (91) to push the insert (92) toward the positioning hole (72). The side of the positioning post (71) is provided with a groove (96), and one end of the groove (96) is sealed. One end of the insert (92) is a bevel (95). When the positioning pin (71) is inserted into the positioning hole (72), the end of the positioning pin (71) presses against the bevel (95) so that the insert (92) retracts into the transverse hole (91). When the insert (92) and the slide (96) are aligned, the insert (92) is inserted into the slide (96) under the drive of the spring (94) to prevent the positioning post (71) from slipping.

9. A cable restraint box, characterized in that: The device includes a cable reel (8) housing, the cable outlet of which is fixed with a connecting end (81), and includes the cable clamp as described in claim 1, wherein the two clamps of the cable clamp and the connecting end (81) are fixedly connected.

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