CN220882006U - Variable sheath plug anchor clamps - Google Patents

Abstract

The utility model provides a variable sheath plug fixture, which comprises a fixed seat, a first fixture, a second fixture and a screw rod, wherein a moving groove is formed in the bottom of the fixed seat along the length direction of the fixed seat, and two sliding rails are respectively arranged on two opposite sides in the moving groove; the upper part of the first clamp is arranged in the moving groove and is level with the left side surface of the fixed seat, the lower part of the first clamp is provided with a first L-shaped clamping jaw, the upper part of the second clamp is arranged on a sliding rail of the moving groove and can move back and forth along the sliding rail, and the lower part of the second clamp is provided with a second L-shaped clamping jaw; the screw rod is located in the moving groove, the left end of the screw rod passes through the upper portion of the first clamp, and the right end thread of the screw rod passes through the upper portion of the second clamp. This variable sheath plug fixture device, it is fixed with first anchor clamps, and the second anchor clamps remove and be close to first anchor clamps and realize the centre gripping to can be according to the cross section diameter size difference of optical cable, adjust the centre gripping distance of anchor clamps, adopt the horizontal splint opposite face cooperation of two L shape clamping jaws to realize the centre gripping simultaneously, the top does not have and shelters from, the optical cable cross section after the convenient observation centre gripping avoids flattening it messenger sheath atress.

Description

Variable sheath plug anchor clamps

Technical Field

The utility model belongs to the technical field related to optical cable production, and particularly relates to a variable sheath plugging clamp.

Background

With the prevalence of indoor and outdoor lead-in cables at home and abroad, although the optical cable structures of all areas have certain differences, the optical cable has a common characteristic to the performances of the optical cable: the friction between the cable sheath and the cable core is required to reach a certain value. Therefore, in the production of the optical cable, the friction force between the optical cable sheath and the cable core is measured by random spot inspection, and the current method is to intercept one end of the optical cable, strip one end of the optical cable for a distance to expose the cable core, clamp the cable core by using a tensile testing machine, clamp the optical cable sheath by using a clamp at the lower end, control the clamp at the upper end to move upwards, withdraw the cable core from the sheath, and measure the friction force between the sheath and the cable core. But the existing anchor clamps of tensile testing machine are that two splint are close to each other or keep away from the setting, can't accurate control clamping distance, when adopting this anchor clamps centre gripping optical cable sheath end, can exist in many times and press from both sides flat condition with the optical cable sheath, and optical cable sheath atress under this circumstances can increase the frictional force of sheath itself and cable core, and then makes the frictional force between optical cable sheath and the cable core be greater than actual frictional force. Aiming at the situation, the clamp is designed, the clamping distance of the clamp can be adjusted according to the different diameters of the cross sections of the optical cables, and then the stress of the sheath is avoided.

Disclosure of Invention

The utility model provides a variable sheath plug clamp which can adjust the clamping distance according to the diameter of the cross section of an optical cable, so that the stress of the optical cable sheath is reduced, and the friction force between the optical cable sheath and a cable core is close to a true value.

The technical scheme adopted by the utility model is as follows:

The variable sheath plug fixture comprises a fixed seat, a first fixture, a second fixture and a screw rod, wherein a connecting column is arranged at the top of the fixed seat, a moving groove is formed in the bottom of the fixed seat along the length direction of the fixed seat, and two sliding rails are respectively arranged on two opposite sides inside the moving groove; the upper part of the first clamp is arranged in the moving groove and is flush with the left side surface of the fixed seat, a first L-shaped clamping jaw is arranged at the lower part of the first clamp, a horizontal clamping plate of the first L-shaped clamping jaw is arranged close to the second clamp, sliding grooves matched with the sliding rails are formed in the front side and the rear side surface of the upper part of the second clamp, the upper part of the second clamp is arranged on the sliding rail of the moving groove through the sliding grooves and can move back and forth along the sliding rails, a second L-shaped clamping jaw is arranged at the lower part of the second clamp, and the second L-shaped clamping jaw and the first L-shaped clamping jaw are symmetrically arranged left and right; the screw rod is located the removal inslot, and its left end passes first anchor clamps upper portion setting, and can rotate at first anchor clamps internal circumference, and its right-hand member screw thread passes second anchor clamps upper portion setting, and can drive second anchor clamps round trip movement, the right-hand member portion of screw rod is provided with the handle.

Preferably, the first clamp and the second clamp have the same structure and are bilaterally symmetrical, the upper part of the first clamp is provided with a through hole for a screw rod to pass through, the front side and the rear side of the upper part of the first L-shaped clamping jaw are provided with sliding grooves matched with the sliding rails, a threaded blind hole is formed between the two sliding grooves, and the position, corresponding to the nut blind hole, of the fixing seat is provided with a threaded through hole.

Preferably, the fixing seat comprises an inverted-L-shaped seat and a front side plate, the front side plate is fixed at the bottom of the front side of the inverted-L-shaped seat and corresponds to a vertical plate of the inverted-L-shaped seat, a moving groove is formed between the front side plate and the vertical plate, and the sliding rail is arranged on the opposite side face of the front side plate and the opposite side face of the vertical plate.

Preferably, the variable sheath plug fixture further comprises a graduated scale or a vernier caliper, and the front side and the rear side of the horizontal clamping plates of the first L-shaped clamping jaw and the second L-shaped clamping jaw are provided with supporting edges.

Compared with the prior art, the utility model has the beneficial effects that: this variable sheath plug fixture device, it is fixed with first anchor clamps, and the second anchor clamps remove and be close to first anchor clamps and realize the centre gripping to can be according to the cross section diameter size difference of optical cable, adjust the centre gripping distance of anchor clamps, simultaneously, make into L shape with the clamping jaw of first anchor clamps and second anchor clamps, adopt the cooperation of the horizontal splint opposite face of L shape clamping jaw to realize the centre gripping, the top does not shelter from, the optical cable cross section after the convenient observation centre gripping avoids pressing from both sides flat messenger's sheath atress with it.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of fig. 1 with the front side plate removed.

Fig. 3 is an exploded view of the present utility model.

In the figure: 1. a fixing seat; 2. a first clamp; 3. a second clamp; 4. a screw; 5. a connecting column; 6. a moving groove; 7. a slide rail; 8. a first L-shaped jaw; 9. a second L-shaped jaw; 10. a handle; 11. a support rim; 1-1, an inverted L-shaped seat; 1-2, a front side plate; 2-1, 3-1, a chute; 2-2, through holes; 2-3, a threaded blind hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

The lead-in optical cable adopts a butterfly-shaped flat structure, specifically, a cable core unit is arranged in the center of the optical cable, two parallel reinforcing members are arranged on two sides of the optical cable, and finally, the low-smoke halogen-free outer sheath is extruded to form the cable. The cross section of the sheath is composed of two symmetrical rounded rectangle and a narrow connecting belt arranged between the two rounded rectangle, the cable core unit is positioned in the center of the narrow connecting belt of the sheath, and the two parallel reinforcing members are positioned at the outer sides of the centers of the rounded rectangle at two sides of the sheath. Detecting the friction force between the optical cable sheath and the cable core, stripping one end of the optical cable for a certain distance to expose the cable core unit, clamping the cable core by a clamp at the lower end of the cable core unit, clamping the optical cable sheath by a clamp at the upper end of the cable core unit, placing the two symmetrical rounded rectangles of the sheath on the clamping surface front and back, and moving the clamp at the upper end upwards to withdraw the cable core from the sheath, thereby measuring the friction force between the sheath and the cable core.

The utility model relates to a variable sheath plug clamp, which comprises a fixed seat 1, a first clamp 2, a second clamp 3 and a screw 4, wherein the top of the fixed seat 1 is provided with a connecting column 5, the whole clamp is fixed on a tensile testing machine by using the connecting column, the bottom of the fixed seat 1 is provided with a moving groove 6 along the length direction, and two opposite sides in the moving groove 6 are respectively provided with two sliding rails 7; the upper part of the first clamp 2 is arranged in the moving groove and is flush with the left side surface of the fixed seat, a first L-shaped clamping jaw 8 is arranged at the lower part of the first clamp 2, a horizontal clamping plate of the first L-shaped clamping jaw is arranged close to the second clamp, sliding grooves 3-1 matched with the sliding rails are formed in the front side and the rear side surface of the upper part of the second clamp 3, the upper part of the second clamp 3 is arranged on the sliding rails of the moving groove through the sliding grooves and can move back and forth along the sliding rails, a second L-shaped clamping jaw 9 is arranged at the lower part of the second clamp 3, and the second L-shaped clamping jaw 9 and the first L-shaped clamping jaw 8 are symmetrically arranged left and right; the screw 4 is located the removal inslot, and its left end passes first anchor clamps upper portion setting, and can rotate at first anchor clamps internal circumference, and its right-hand member screw thread passes second anchor clamps upper portion setting, and can drive second anchor clamps round trip movement, the right-hand member portion of screw 4 is provided with handle 10.

The optical cable is introduced to cling to the vertical setting of clamping face of first L shape clamping jaw, and its upper end cross section stretches out the clamping face setting slightly, and the twist grip makes the screw rod rotatory, and then drives the second L shape clamping jaw and remove, makes it be close to the centre gripping that first L shape clamping jaw realized the optical cable to can grasp optical cable sheath and optical cable cross section does not warp to become standard. Because only the mobile position of one side anchor clamps is adjusted, the convenient centre gripping distance of adjusting according to the cross section diameter of optical cable. In addition, the horizontal clamping plates of the first L-shaped clamping jaw and the second L-shaped clamping jaw are matched to realize clamping, the top is free from shielding, the cross section of the optical cable can be clearly observed, and the deformation of the cross section of the optical cable to enable the sheath to be stressed is avoided.

In this embodiment, the upper portion of the first fixture is thus fixed in the moving groove and is flush with the left side surface of the fixing seat, specifically, the first fixture 2 and the second fixture have the same structure and are bilaterally symmetrical, the upper portion of the first fixture is provided with a through hole 2-2 through which the screw rod passes, the inner diameter of the through hole is slightly larger than the outer diameter of the screw rod, the screw rod is movably arranged in the through hole in a penetrating manner, two sides of the screw rod are locked by nuts, so that the screw rod can rotate in the inner circumference of the through hole, sliding grooves 2-1 matched with the sliding rail are formed in the front side and the rear side surface of the upper portion of the first fixture, threaded blind holes 2-3 are formed between the two sliding grooves, threaded through holes are formed in positions on the fixing seat corresponding to the nut blind holes, and screws pass through the threaded through holes and the threaded blind holes from one side of the outer side of the fixing seat, and the upper portion of the first fixture is fixed in the moving groove of the fixing seat.

For convenient earlier stage processing and later stage assembly, set up the fixing base separately, specifically, fixing base 1 includes the front side board 1-1 and the preceding curb plate 1-2 of falling L shape seat, preceding curb plate is fixed in the front side bottom of falling L shape seat, corresponds with the vertical board of falling L shape seat, and forms between preceding curb plate and the vertical board and remove groove 6, the slide rail sets up at the opposite side of preceding curb plate and vertical board.

In order to clamp the optical cable relatively accurately, the variable sheath plug clamp further comprises a graduated scale or a vernier caliper. The cross section diameter of the optical cable is measured in advance by using a graduated scale or a vernier caliper, then the 0 position of the graduated scale or the vernier caliper is aligned with the clamping surface of the horizontal clamping plate of the first L-shaped clamping jaw, and the second L-shaped clamping jaw is close to the first L-shaped clamping jaw by using the adjusting handle. At this time, in order not to affect the movement of the moving second L-shaped jaw, support rims 11 are provided at the front and rear sides of the horizontal clamping plates of the first L-shaped jaw 8 and the second L-shaped jaw 9. The graduated scale or the vernier caliper is placed on the supporting edge of the first L-shaped clamping jaw and is close to but not close to the vertical arm of the second L-shaped clamping jaw, and the second L-shaped clamping jaw is not influenced to move while being positioned.

Claims (4)

1. A variable sheath plug anchor clamps, its characterized in that: the device comprises a fixed seat, a first clamp, a second clamp and a screw rod, wherein a connecting column is arranged at the top of the fixed seat, a moving groove is formed in the bottom of the fixed seat along the length direction of the fixed seat, and two sliding rails are respectively arranged on two opposite sides inside the moving groove; the upper part of the first clamp is arranged in the moving groove and is flush with the left side surface of the fixed seat, a first L-shaped clamping jaw is arranged at the lower part of the first clamp, a horizontal clamping plate of the first L-shaped clamping jaw is arranged close to the second clamp, sliding grooves matched with the sliding rails are formed in the front side and the rear side surface of the upper part of the second clamp, the upper part of the second clamp is arranged on the sliding rail of the moving groove through the sliding grooves and can move back and forth along the sliding rails, a second L-shaped clamping jaw is arranged at the lower part of the second clamp, and the second L-shaped clamping jaw and the first L-shaped clamping jaw are symmetrically arranged left and right; the screw rod is located the removal inslot, and its left end passes first anchor clamps upper portion setting, and can rotate at first anchor clamps internal circumference, and its right-hand member screw thread passes second anchor clamps upper portion setting, and can drive second anchor clamps round trip movement, the right-hand member portion of screw rod is provided with the handle.

2. The variable jacket plug clamp of claim 1, wherein: the first clamp and the second clamp are identical in structure and bilaterally symmetrical, a through hole for a screw rod to pass through is formed in the upper portion of the first clamp, sliding grooves matched with the sliding rails are formed in the front side surface and the rear side surface of the upper portion of the first L-shaped clamping jaw, threaded blind holes are formed between the two sliding grooves, and threaded through holes are formed in positions, corresponding to the nut blind holes, of the fixing base.

3. The variable jacket plug clamp of claim 1, wherein: the fixing seat comprises an inverted L-shaped seat and a front side plate, the front side plate is fixed at the bottom of the front side of the inverted L-shaped seat and corresponds to a vertical plate of the inverted L-shaped seat, a moving groove is formed between the front side plate and the vertical plate, and the sliding rail is arranged on the opposite side face of the front side plate and the opposite side face of the vertical plate.

4. The variable jacket plug clamp of claim 1, wherein: the variable sheath plug fixture further comprises a graduated scale or a vernier caliper, and support edges are arranged on the front side and the rear side of the horizontal clamping plates of the first L-shaped clamping jaw and the second L-shaped clamping jaw.