Remaining cable adjusting device in transition box

Abstract

The invention discloses a cable allowance adjusting device in a transition box. The device comprises an open-top bin body, a downward pressing device, an adjusting mechanism and a fixing base, the open-top bin body is installed on the fixing base, the downward pressing device is installed on the adjusting mechanism, the adjusting mechanism is located in an inner cavity and a top opening of the open-top bin body, and vertical lifting adjustment of the adjusting mechanism drives the downward pressing device to move vertically. The adjusting mechanism comprises a mounting plate, a linkage assembly and a double-acting hydraulic cylinder, the linkage assembly comprises a first rotating shaft, a second rotating shaft and a third rotating shaft which are sequentially arranged from bottom to top, two first linkage rods are arranged, and the two ends of each first linkage rod are connected with the first rotating shaft and the second rotating shaft in a sleeving mode correspondingly; two second linkage rods are arranged, the two ends of each second linkage rod are connected with a second rotating shaft and a third rotating shaft in a sleeved mode respectively, and the double-acting hydraulic cylinder is matched with the linkage assembly to achieve vertical lifting of the mounting plate. The device is quick and convenient, is convenient to disassemble and assemble, and adjusts the cable allowance according to requirements.

Description

Technical Field

[0001] The invention relates to the technical field of ship cable transition boxes, and in particular to a cable margin adjustment device in a transition box. Background Art

[0002] A cable is an electrical energy or signal transmission device composed of several or several groups of wires. It is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. It is usually a rope-like cable made up of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering layer. The cable has the characteristics of internal power conduction and external insulation.

[0003] Cables on open decks of bulk carriers and chemical tankers are generally laid through cable ducts. Due to the long decks of these ships, it is usually necessary to add cable transition boxes on the deck during the design process to facilitate the lead-out of deck branch cables. At the same time, due to the long deck, by using deck cable transition boxes, a certain margin can be left in the transition box to meet the needs of cable expansion and contraction, making it convenient for the cable to move with the free rollers in the box and avoid cable wear.

[0004] During the cable laying process, the cable is passed through the pipe from the deck transition box. The cable laying needs to be operated by a winch at the bow. When the winch is used, the cable is usually in a taut and stretched state, and no margin can be left in the transition box. Currently, a support frame is set in the transition box to support the cable to leave a margin, but the height of the support frame is fixed, and it is not convenient to adjust the margin. Summary of the invention

[0005] The purpose of the present invention is to provide a cable surplus adjustment device in a transition box for conveniently adjusting the surplus during cable laying in view of the deficiencies in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a cable surplus adjustment device in a transition box, comprising an open-top warehouse body, a pressing device, an adjustment mechanism and a fixing seat, the open-top warehouse body is installed on the fixing seat, the pressing device is installed on the adjustment mechanism, the adjustment mechanism is located in the inner cavity and the top opening of the open-top warehouse body, the vertical lifting adjustment of the adjustment mechanism drives the vertical movement of the pressing device, and the adjustment mechanism comprises a mounting plate, a linkage assembly, and a double-acting hydraulic cylinder;

[0007] The four corners of the mounting plate are all opened with holes to embed the slip rings and the slide rod is connected with the slide rod through the slip ring sliding sleeve. The bottom surface of the slide rod is fixed to the fixed seat, and the pressing device is fixed to the top surface of the mounting plate. The shape of the mounting plate is similar to the top opening shape of the open-top warehouse body and the mounting plate is smaller than the top opening. It needs to be further explained that during the movement of the mounting plate, the slide sleeve can move along the outer surface of the slide rod, effectively ensuring the stability of the mounting plate during the movement, and effectively preventing the mounting plate from being deflected and stuck during the movement.

[0008] The linkage assembly includes a first rotating shaft, a second rotating shaft, and a third rotating shaft which are sequentially arranged from bottom to top, two first linkage rods are arranged and the two ends of each first linkage rod are respectively sleeved with the first rotating shaft and the second rotating shaft, and two second linkage rods are arranged and the two ends of each second linkage rod are respectively sleeved with the second rotating shaft and the third rotating shaft;

[0009] Two groups of linkage components are arranged symmetrically, and two horizontal plates are symmetrically fixed to the top surface of the fixed seat, the first rotating shafts of the two linkage components are fixed between the two horizontal plates, and the ends of the third rotating shafts of the two linkage components are sleeved with support frames, and the support frames are fixed to the bottom surface of the mounting plate;

[0010] Two swivels are provided, and both ends of the double-acting hydraulic cylinder are respectively vertically fixed to the outer surfaces of the two swivels, and the two swivels are respectively sleeved on the second rotating shafts of the two sets of linkage assemblies; it should be further explained that the double-acting hydraulic cylinder changes the distance between the second rotating shafts in the two linkage assemblies during the extension and retraction process, because in the two linkage assemblies, the relative position between the first rotating shaft and the mounting plate is fixed, and the relative position between the third rotating shaft and the fixed seat is fixed, so when the distance between the second rotating shafts in the two linkage assemblies changes, only the mounting plate will be displaced, and the vertical lifting of the mounting plate can be realized by cooperating with the limiting effect of the slip ring and the sliding rod.

[0011] Preferably, a limiting ring is provided on the top of the slide bar, which can limit the mounting plate and effectively prevent the mounting plate from sliding off the outer surface of the slide bar.

[0012] Preferably, two sliding columns are fixedly connected to the top surface of the fixed seat, each sliding column is sleeved with a collar, and the outer surface of each collar is fixedly connected to a movable plate, and the side surfaces of the two movable plates close to each other are fixedly connected to the outer surface of the double-acting hydraulic cylinder. It should be further explained that in the process of the second rotating shaft driving the double-acting hydraulic cylinder to move up and down, the double-acting hydraulic cylinder can drive the collar to slide on the outer surface of the sliding column through the movable plate, so that the double-acting hydraulic cylinder can move up and down along the sliding column, which can effectively increase the stability of the double-acting hydraulic cylinder during the movement process and effectively prevent the double-acting hydraulic cylinder from shaking during the movement process.

[0013] Preferably, a retaining ring is fixedly connected to the upper surface of each sliding column, and the diameter of the retaining ring is larger than the diameter of the collar. The retaining ring limits the collar, effectively preventing the collar from moving out of the outer surface of the sliding column during the movement of the movable plate, thereby ensuring the normal use of the sliding column and the collar.

[0014] Preferably, a step is provided at the upper end of the fixing seat, and the step is interference fit with the inner wall of the open-top bin body.

[0015] Preferably, a pair of first connecting screws are fixedly connected to the front and back of the fixing seat, the outer surface of each first connecting screw is threadedly connected to an internal threaded connecting sleeve, and each first connecting screw is threadedly connected to a second connecting screw through the inner wall of the internal threaded connecting sleeve. Optionally, the cable margin adjustment device is stably supported in the transition box by using the adjustable connecting screw for subsequent use.

[0016] Preferably, the bottom surface of the fixed seat is fixedly connected with an anti-skid pad, and the bottom surface of the anti-skid pad is provided with an anti-skid groove. It should be further explained that the fixed seat can increase the contact area between the open-top warehouse body and the ground or the desktop, improve the stability of the pressing device during placement, and effectively prevent the pressing device from shaking due to external force. The anti-skid pad can effectively increase the friction between the bottom surface of the fixed seat and the ground or the desktop, and prevent the pressing device from sliding during placement.

[0017] Preferably, an operation nameplate is provided on the side of the open-top bin body. It should be further explained that the front of the operation nameplate is engraved with operation instructions, and the staff can quickly master the correct operation method by reading the operation nameplate.

[0018] The pressing device includes a fixed base fixed on the mounting plate and a detachable pulley device fixed on the fixed base, the detachable pulley device includes an inverted U-shaped upper frame and a U-shaped lower frame, the upper frame is equipped with a pulley, both sides of the lower frame are provided with assembly notches, the two sides of the upper frame are tightly attached to the two sides of the lower frame and inserted into the assembly notches, and the two sides of the upper frame are fixed to the two sides of the lower frame by assembly bolts. It should be further explained that when the winch is used to lay the cable, the pressing device is lowered in height as the adjustment mechanism is adjusted, and the original straight-line travel cable is changed into a cable with an arc travel. After the cable is laid, the height of the pressing device is increased by the adjustment structure and the adjusting device is removed by the assembly bolts, and the cable with a surplus can be obtained in the transition box.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The cable margin adjustment device in the transition box drives the two second rotating shafts to approach each other through a double-acting hydraulic cylinder, and the two second rotating shafts drive the first connecting rod and the second connecting rod to approach each other, shortening the distance between the first connecting rod and the second connecting rod, and using the second connecting rod to push the support frame to move upward, and the support frame pushes the mounting plate to move upward, and the mounting plate drives the pressing device body to adjust the height, which is convenient for adjusting the height of the support frame as a whole, easy to use, and can control and adjust the cable margin of each transition box so that it does not collide with the pipe mouth and avoids cable wear.

[0021] 2. The cable margin adjustment device in the transition box, through the setting of the sliding column and the movable plate, when the second shaft drives the double-acting hydraulic cylinder to move up and down, the double-acting hydraulic cylinder can drive the sleeve ring to slide on the outer surface of the sliding column through the movable plate, so that the double-acting hydraulic cylinder can move up and down along the sliding column, which can effectively increase the stability of the double-acting hydraulic cylinder during movement and effectively prevent the double-acting hydraulic cylinder from shaking during movement. The sleeve ring can be limited by the retaining ring, which effectively prevents the sleeve ring from moving out of the outer surface of the sliding column during the movement driven by the movable plate, thereby ensuring the subsequent normal use of the sliding column and the sleeve ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall axonometric drawing of the present invention.

[0023] Figure 2 It is a first-perspective axonometric view of the interior of the open-top warehouse in the present invention.

[0024] Figure 3 It is a second perspective axonometric view of the interior of the open-top warehouse in the present invention.

[0025] Figure 4 It is a third-angle axonometric view of the interior of the open-top warehouse in the present invention.

[0026] Figure 5 It is an axonometric view of the downward pressing device in the present invention.

[0027] Among them, 1-pressing device, 11-detachable pulley device, 111-upper frame, 112-pulley, 113-lower frame, 114-assembly notch, 115-assembly bolt, 12-fixed base, 2-open top warehouse, 3-adjusting mechanism, 31-mounting plate, 32-double-acting hydraulic cylinder, 331-first connecting rod, 332-second connecting rod, 341-first rotating shaft, 342-second rotating shaft, 35-swivel, 36-movable plate, 371-sliding rod, 372-sliding ring, 373-limiting ring, 381-sliding column, 382-ring, 383-blocking ring, 391-cross plate, 392-support frame, 4-fixed seat, 41-anti-slip pad, 51-first connecting screw, 52-internal thread connecting sleeve, 53-second connecting screw, 54-operating nameplate. DETAILED DESCRIPTION

[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0029] like Figures 1 to 4 The cable surplus adjustment device in the transition box shown in the figure comprises an open-top warehouse body 2, a pressing device 1, an adjustment mechanism 3 and a fixing seat 4, the open-top warehouse body 2 is mounted on the fixing seat 4, the bottom surface of the fixing seat 4 is fixedly connected with an anti-skid pad 41, the bottom surface of the anti-skid pad 41 is provided with an anti-skid groove, and an operation nameplate 54 is provided on the side of the open-top warehouse body 2, the pressing device 1 is mounted on the adjustment mechanism 3, the pressing device 1 comprises a fixing base 12 fixed on the mounting plate 31 and a detachable pulley device 11 fixed on the fixing base 12, the detachable pulley device 11 comprises an inverted U-shaped upper frame 111 and The U-shaped lower frame 113 and the upper frame 111 are equipped with a pulley 112. Both sides of the lower frame 113 are provided with assembly slots 114. The two sides of the upper frame 111 are tightly attached to the two sides of the lower frame 113 and inserted into the assembly slots 114. The two sides of the upper frame 111 and the two sides of the lower frame 113 are fixed by assembly bolts 115. The adjustment mechanism 3 is located in the inner cavity and the top opening of the open-top warehouse body 2. The vertical lifting adjustment of the adjustment mechanism 3 drives the vertical movement of the pressing device 1. The adjustment mechanism 3 includes a mounting plate 31, a linkage assembly, and a double-acting hydraulic cylinder 32.

[0030] The four corners of the mounting plate 31 are all provided with holes to embed the slip rings 372, and the slide rod 371 is slidably sleeved through the slip rings 372. A limiting ring 373 is provided on the top of the slide rod 371. The bottom surface of the slide rod 371 is fixedly connected to the fixing seat 4. The pressing device 1 is fixedly connected to the top surface of the mounting plate 31. The shape of the mounting plate 31 is similar to the top opening shape of the open-top warehouse body 2, and the mounting plate 31 is smaller than the top opening.

[0031] The linkage assembly includes a first rotating shaft 341, a second rotating shaft 342, and a third rotating shaft which are arranged in sequence from bottom to top. Two first linkage rods 331 are arranged, and the two ends of each first linkage rod 331 are respectively connected to the first rotating shaft 341 and the second rotating shaft 342. Two second linkage rods 332 are arranged, and the two ends of each second linkage rod 332 are respectively connected to the second rotating shaft 342 and the third rotating shaft.

[0032] Two groups of linkage components are arranged symmetrically, and two horizontal plates 391 are symmetrically fixed to the top surface of the fixed seat 4. The first rotating shafts 341 of the two linkage components are fixed between the two horizontal plates 391. The ends of the third rotating shafts of the two linkage components are sleeved with support frames 392, and the support frames 392 are fixed to the bottom surface of the mounting plate 31.

[0033] Two swivels 35 are provided, and two ends of the double-acting hydraulic cylinder 32 are respectively and vertically fixedly connected to the outer surfaces of the two swivels 35 . The two swivels 35 are respectively sleeved with the second rotating shafts 342 of the two sets of linkage components.

[0034] Two sliding columns 381 are fixedly connected to the top surface of the fixed seat 4, each sliding column 381 is sleeved with a ring 382, ​​the outer surface of each ring 382 is fixedly connected to a movable plate 36, and the side surfaces of the two movable plates 36 close to each other are fixedly connected to the outer surface of the double-acting hydraulic cylinder 32, and the upper surface of each sliding column 381 is fixedly connected to a retaining ring 383, and the diameter of the retaining ring 383 is larger than the diameter of the ring 382.

[0035] A step is provided at the upper end of the fixing seat 4, and the step is interference fit with the inner wall of the open-top warehouse body 2. A pair of first connecting screws 51 are fixedly connected to the front and back sides of the fixing seat 4. The outer surface of each first connecting screw 51 is threadedly connected to an internal threaded connecting sleeve 52, and each first connecting screw 51 is threadedly connected to a second connecting screw 53 through the inner wall of the internal threaded connecting sleeve 52.

[0036] The working process and principle of the present invention are as follows: during the cable laying process, the adjusting device is placed below the cable in the transition box, the mounting bolts in the knob-pressing device 1 are turned, and the upper frame 111 is removed, and the double-acting hydraulic cylinder 32 is adjusted so that the cable is located above the lower frame 113, and the double-acting hydraulic cylinder 32 is adjusted and the pulley 112 in the upper frame 111 is aligned above the cable so that the cable is just located between the upper frame 111 and the lower frame 113, and the assembly bolts 115 are reinstalled. After confirming that the installation of the pressing device 1 is completed, the knob internal thread connecting sleeve 52 is turned to fix the four second connecting rods to the inner wall of the transition box, so that the position of the adjusting device relative to the transition box is fixed; the cable laid by the off-site winch is in a straight and tight position. state, at this time, the double-acting hydraulic cylinder 32 is adjusted to make the two second rotating shafts 342 mutually principle, thereby lowering the height of the mounting plate 31, and then lowering the height of the pressing device 1. The pulley 112 in the upper frame 111 makes the cable in the originally taut state become a bent state during the height reduction process. At the same time, the pulley 112 continues to cooperate with the free roller in the transition box to complete the laying of the cable. The bending degree of the cable can be adjusted by the double-acting hydraulic cylinder 32 according to actual needs. After the cable laying is completed, the mounting bolts in the knob pressing device 1 are turned to remove the upper frame 111. At the same time, the internal threaded connecting sleeve 52 is adjusted to cancel the fixation of the fixing seat 4, and the double-acting hydraulic cylinder 32 is controlled to lower the height to withdraw the adjusting device.

[0037] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A cable margin adjustment device in a transition box, characterized in that: It includes an open-top warehouse body, a pressing device, an adjusting mechanism and a fixing seat, the open-top warehouse body is installed on the fixing seat, the pressing device is installed on the adjusting mechanism, the adjusting mechanism is located in the inner cavity and the top opening of the open-top warehouse body, and the vertical lifting adjustment of the adjusting mechanism drives the vertical movement of the pressing device, and the adjusting mechanism includes a mounting plate, a linkage assembly, and a double-acting hydraulic cylinder; The four corners of the mounting plate are all opened with holes to embed the slip rings and the sliding rods are slidably sleeved through the slip rings. The bottom surface of the sliding rod is fixed to the fixing seat. The pressing device is fixed to the top surface of the mounting plate. The shape of the mounting plate is similar to the top opening of the open-top bin body and the mounting plate is smaller than the top opening. The linkage assembly includes a first rotating shaft, a second rotating shaft, and a third rotating shaft which are sequentially arranged from bottom to top, two first linkage rods are arranged and the two ends of each first linkage rod are respectively sleeved with the first rotating shaft and the second rotating shaft, and two second linkage rods are arranged and the two ends of each second linkage rod are respectively sleeved with the second rotating shaft and the third rotating shaft; Two groups of linkage components are arranged symmetrically, and two horizontal plates are symmetrically fixed to the top surface of the fixed seat, the first rotating shafts of the two linkage components are fixed between the two horizontal plates, and the ends of the third rotating shafts of the two linkage components are sleeved with support frames, and the support frames are fixed to the bottom surface of the mounting plate; Two swivels are provided, and the two ends of the double-acting hydraulic cylinder are respectively and vertically fixedly connected to the outer surfaces of the two swivels, and the two swivels are respectively sleeved with the second rotating shafts of the two groups of linkage components.

2. The cable margin adjustment device in the transition box according to claim 1 is characterized in that: A limiting ring is arranged on the top of the slide bar.

3. The cable margin adjustment device in the transition box according to claim 1, characterized in that: The top surface of the fixed seat is fixedly connected to two sliding columns, each sliding column is sleeved with a collar, the outer surface of each collar is fixedly connected to a movable plate, and the side surfaces of the two movable plates close to each other are fixedly connected to the outer surface of the double-acting hydraulic cylinder.

4. The cable margin adjustment device in the transition box according to claim 3 is characterized in that: The upper surface of each sliding column is fixedly connected with a retaining ring, and the diameter of the retaining ring is greater than the diameter of the sleeve ring.

5. The cable margin adjustment device in the transition box according to claim 1, characterized in that: The upper end of the fixing seat is provided with a step, and the step is interference-fitted with the inner wall of the open-top bin body.

6. The cable margin adjustment device in the transition box according to claim 1, characterized in that: A pair of first connecting screw rods are fixedly connected to the front and back of the fixing seat, the outer surface of each first connecting screw rod is threadedly connected to an internal threaded connecting sleeve, and each first connecting screw rod is threadedly connected to a second connecting screw rod through the inner wall of the internal threaded connecting sleeve.

7. The cable margin adjustment device in the transition box according to claim 1, characterized in that: The bottom surface of the fixed seat is fixedly connected with an anti-skid pad, and the bottom surface of the anti-skid pad is provided with an anti-skid groove.

8. The cable margin adjustment device in the transition box according to claim 1, characterized in that: An operation nameplate is provided on the side of the open-top bin.

9. The cable margin adjustment device in the transition box according to claim 1, characterized in that: The pressing device includes a fixed base fixed on the mounting plate and a detachable pulley device fixed on the fixed base, the detachable pulley device includes an inverted U-shaped upper frame and a U-shaped lower frame, the upper frame is equipped with a pulley, both sides of the lower frame are provided with assembly grooves, the two sides of the upper frame are tightly attached to the two sides of the lower frame and inserted into the assembly grooves, and the two sides of the upper frame are fixed to the two sides of the lower frame by assembly bolts.

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