CN111313329B - A kind of cable equipment for municipal engineering - Google Patents

Abstract

The invention belongs to the field of cable laying, and in particular relates to a cable device for municipal engineering, which comprises a rod A, a telescopic rod structure, a support foot, a guide ring, a roller A, a roller B, etc. The two connected rods A are symmetrically installed with four supporting feet that are matched with the wall of the cable shaft; when the direction of the pulling wire is changed and is not consistent with the running direction of the cable underground cable, the present invention can adjust the distance between the roller A and the roller B. The orientation allows the cable to remain on the rollers A and B even when the pulling direction of the wire-pulling personnel on the ground changes, so as to avoid the cable and the well edge or the well edge or the well edge caused by the cable being separated from the rollers A and B when the pulling direction of the ground-pulling personnel changes. The wear caused by the contact at the corners of the cable well can ensure the efficiency of the cable construction and avoid the cable from being damaged.

Description

A kind of cable equipment for municipal engineering

technical field

The invention belongs to the field of cable laying, in particular to a cable device for municipal engineering.

Background technique

In the traditional cable laying method, the cable in the cable well is pulled without any auxiliary equipment. During the process of pulling the cable, the cable and the well edge of the cable well or the corner in the cable well rub against each other. The skin of the cable is worn or damaged to varying degrees during the pulling process. The service life of the cable with damaged skin is limited, and the safety of the cable with damaged skin cannot be guaranteed during actual operation, which affects the quality of cable construction. On the other hand, the friction between the cable and the well edge slows down the speed of cable laying, thereby reducing the efficiency of cable laying to a certain extent.

The orientation of the roller A and the roller B in the "A Special Support for Municipal Engineering Interspersed Cables" published with the publication number "103956692A" is fixed, so that it is only suitable for the situation where the direction of the pulling wire is consistent with the running direction of the underground cable. If the actual situation of the road causes the direction of the ground cable to change, at this time, the cable will break away from the rollers A and B in the "A Special Support for Municipal Engineering Interspersed Cables" with the public number "103956692A". Contact with the edge of the well or the corners of the cable well causes friction and wears or damages the cable skin. "A special support for municipal engineering interspersed cables" with the publication number "103956692A" cannot completely solve the problem of friction between the cable and the well edge in the traditional cable-pulling method without the aid of auxiliary equipment.

In view of the above problems existing in "a special support for municipal engineering interpenetrating cables" with the publication number "103956692A", it is necessary to improve the design of "a special support for municipal engineering interpenetrating cables" with the publication number "103956692A" .

The present invention designs a cable equipment for municipal engineering to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned defects in the prior art, the present invention discloses a cable device for municipal engineering, which is realized by adopting the following technical solutions.

It should be noted in the description of the present invention that the terms "inside", "outside", "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the product of the invention The orientation or positional relationship that is usually placed in use is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood to limit the present invention. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

A cable equipment for municipal engineering is characterized in that: it includes a rod A, a telescopic rod structure, a support foot, a guide ring, a sliding sleeve, a roller A, a supporting frame, a guide rod, a sliding seat, an L block, a shaft A, a shaft B. Roller B, wherein two rods A connected by two symmetrically distributed telescopic rod structures are symmetrically installed with four supporting feet matched with the wall of the cable shaft; A straight guide ring, and another rod A is installed with a support frame with a vertical center axis through the fixing plate B. The guide ring is located above the rectangular area formed by the two rods A and the two telescopic rod structures, and the support frame is opposite to the guide ring, ensuring that the guide ring is always located directly above the wellhead of the cable well, thereby ensuring that the position of the roller A occurs. After the change, it is still located above the wellhead of the cable well and close to the edge of the inlet, which effectively avoids the friction between the cable coming out of the cable well and the well wall, so as to effectively play the supporting and guiding role of the roller A on the cable. At the same time, it is ensured that the sliding seat drives the roller B through the L block to always move within the range of the cable shaft and form a good fit with the roller A. The sliding sleeve on which the roller A is installed through the support A is slid horizontally and circumferentially on the guide ring, and the sliding sleeve has a lock structure to fix its relative position with the guide ring.

There are two vertically distributed guide rods sliding horizontally in the support frame, and the movement directions of the two guide rods are perpendicular to each other; Independent lock structure; the sliding seat slidingly matched with the two guide rods moves horizontally in the support frame; the vertical section of the L block slides vertically in the sliding groove D on the sliding seat, and there is a fixed between the L block and the sliding seat The independent lock structure of the relative position of the L block and the sliding seat; the L block is rotatably matched with a vertical axis A and a horizontal axis B that are perpendicular to each other and connected by a transmission, and the L block has an independent lock structure that restricts the rotation of the axis A relative to the L block; The shaft A and the shaft B are manually driven to rotate; one end of the shaft B is installed with a roller B through the support B, and the central axis of the roller B is perpendicular to the shaft B.

As a further improvement of the present technology, the end of each of the above-mentioned legs is hinged with an arc plate which is matched with the wall of the cable shaft. The arc plate hinged on the feet can better adapt to the well wall of the cable well and thus achieve effective support and fixation on the well wall, which is suitable for both square and round cable wells.

As a further improvement of the present technology, the above-mentioned telescopic rod structure includes a screw rod, a screw sleeve, a ring A, and a rod B, wherein a screw rod is threaded in the screw sleeve that is rotatably matched with the circular rod B, and the screw rod and rod B are respectively connected to the same side rod A Fixed connection; a ring A is installed on the rod B, and the ring A rotates in the ring groove A on the inner wall of the screw sleeve.

As a further improvement of this technology, the inner thread of the threaded hole on the sliding sleeve is matched with a bolt A for fixing the relative position of the sliding sleeve and the guide ring; the sliding sleeve is fixedly connected to the two screws through two symmetrically distributed fixing plates A; The frame is fixedly connected with the two rods B through two fixed plates B symmetrically distributed. The three fixing plates A form a three-point support for the guide ring, and the three fixing plates B form a three-point support for the supporting frame, which makes the fixing of the guiding ring and the supporting frame more stable, thereby strengthening the supporting strength of the guiding ring and the supporting frame .

As a further improvement of the present technology, the above two guide rods are respectively slid in two mutually perpendicular sliding grooves C in the sliding seat; two sliding grooves A are symmetrically opened on the end faces of both ends of the guide rod, and the corresponding two guide rails Two chutes A that slide relative to both ends of the guide rod; the guide rod is provided with a chute B that communicates with the chute A at both ends, and a limit plate is vertically slid in the chute B, and the two ends of the limit plate are respectively connected to Several limit grooves evenly distributed on the lower surface of the guide rail on the same side are matched; the circular groove located on the upper surface of the guide rod and communicated with the corresponding chute B is rotatably fitted with a bolt B, and the bolt B is connected with the limit located at the bottom of the corresponding chute B. The threaded holes on the plate are threaded; the inner wall of the circular groove is provided with a ring groove B in the circumferential direction, and the ring B installed on the bolt B rotates in the ring groove B.

As a further improvement of the present technology, the inner thread of the threaded hole communicated with the chute D on the side of the sliding seat is fitted with a bolt C, and the bolt C is fitted with the vertical section of the L block.

As a further improvement of the technology, the above-mentioned shaft A and shaft B rotate in the two shaft grooves of the vertical section and the horizontal section of the L block respectively; the upper end of the shaft A is installed with a manually rotated torsion wheel, and the lower end of the shaft A is installed with a cone Gear A, and the bevel gear A is located in the transmission groove at the corner of the L block; the bevel gear A meshes with the bevel gear B installed on the shaft B; the side of the vertical section of the L block is threaded with the inner thread of the threaded hole that communicates with the corresponding shaft groove There are bolts D, which mate with the shaft A.

Compared with the traditional cable laying guide equipment, the present invention can change the relative sliding friction between the cable and the well edge into the rolling friction between the cable and the rollers A and B. On the one hand, it reduces the resistance of the cable and increases the speed of the cable, thereby improving the efficiency of cable construction; Or worn out, while improving the construction quality of the cable, it can effectively avoid the shortening of the cable life caused by the skin damage of the cable, and at the same time ensure the safety of the cable during the actual operation after the laying of the cable.

Compared with the "a special support for municipal engineering interspersed cables" with the publication number "103956692A", it is only suitable for the situation where the direction of the cable is consistent with the running direction of the underground cable. When the running direction of the cable is the same, adjust the orientation of roller A and roller B so that the cable is still on roller A and roller B even if the pulling direction of the cable puller on the ground changes, so as to prevent the cable from being damaged when the pulling direction of the cable puller changes on the ground. The wear caused by the contact between the cable and the well edge or the corner in the cable well caused by the separation of the roller A and the roller B, can ensure the efficiency of the cable construction and avoid the cable from being damaged. The invention has simple structure and good use effect.

Description of drawings

Fig. 1 is the overall schematic diagram of the present invention.

FIG. 2 is a schematic cross-sectional view of the present invention in cooperation with the cable well and the cable.

Figure 3 is a schematic cross-sectional view of the sliding sleeve and the guide ring.

Figure 4 is a cross-sectional schematic diagram of the rod A, the fixing plate B, the supporting frame, the sliding seat and the L block.

5 is a schematic cross-sectional view of the shaft A, the bevel gear A, the bevel gear B, the shaft B, the support B and the roller B.

FIG. 6 is a schematic diagram of an overall cross-section and a partial cross-section of the structure of the rod A and the telescopic rod.

Figure 7 is a schematic sectional view of the screw sleeve.

Figure 8 is a schematic diagram of the cooperation between the supporting frame, the guide rail, the guide rod, the sliding seat and the L block.

FIG. 9 is a perspective view of the carriage.

Figure 10 is a schematic diagram of the cooperation between the support frame, the guide rail and the guide rod.

Fig. 11 is a schematic cross-sectional view of the partial cooperation between the supporting frame, the guide rail and the guide rod.

Figure 12 is a schematic diagram of the guide rail.

Figure 13 is a schematic diagram of the guide rod and its cross-section.

FIG. 14 is a schematic diagram of the L block and its cross-section.

Label names in the figure: 1, cable well; 2, cable; 3, rod A; 4, telescopic rod structure; 5, screw rod; 6, rod B; 7, screw sleeve; 8, ring groove A; 9, ring A ; 10, feet; 11, arc plate; 12, guide ring; 13, sliding sleeve; 14, bolt A; 15, support A; 16, roller A; 17, fixed plate A; 18, fixed plate B; 19, Support box; 20, guide rail; 21, limit slot; 22, guide rod; 23, chute A; 24, chute B; 25, round slot; 26, ring slot B; 27, limit plate; 28, Bolt B; 29, Ring B; 30, Slider; 31, Chute C; 32, Chute D; 34, Bolt C; 35, L block; 36, Shaft groove; 37, Transmission groove; 39, Shaft A; 40, torsion wheel; 41, bevel gear A; 42, bevel gear B; 43, shaft B; 44, support B; 45, roller B; 46, bolt D.

Detailed ways

The accompanying drawings are schematic diagrams of the implementation of the present invention, so as to facilitate the understanding of the operation principle of the structure. The specific product structure and proportions can be determined according to the use environment and conventional techniques.

As shown in Figures 1, 3 and 5, it includes a rod A3, a telescopic rod structure 4, a support foot 10, a guide ring 12, a sliding sleeve 13, a roller A16, a supporting frame 19, a guide rod 22, a sliding seat 30, and an L block 35 , axis A39, axis B43, roller B45, among which, as shown in Figures 1 and 6, two rods A3 connected by two symmetrically distributed telescopic rod structures 4 are symmetrically installed on the two rods A3 that cooperate with the wall of the cable shaft 1 shaft. Support foot 10; as shown in Figures 1 and 4, a guide ring 12 with a vertical center axis is installed on one rod A3 through a fixed plate A17, and a support frame 19 with a vertical center axis is installed on the other rod A3 through a fixed plate B18 . As shown in Figures 1 and 2, the guide ring 12 is located above the rectangular area formed by the two rods A3 and the two telescopic rod structures 4, and the support frame 19 faces the guide ring 12 downward to ensure that the guide ring 12 is always positioned on the cable Just above the wellhead of well 1, so as to ensure that the roller A16 is still located above the wellhead of cable well 1 and close to the edge of the entrance after the position of the roller A16 is changed, which can effectively avoid the friction between the cable 2 coming out of the cable well 1 and the well wall, and thus effectively Play the role of the roller A16 to support and guide the cable 2. At the same time, it is ensured that the sliding seat 30 drives the roller B45 through the L block 35 to always move within the vertical shaft range of the cable shaft 1 and form a good fit with the roller A16. As shown in Figures 1 , 2 and 3 , the sliding sleeve 13 with the roller A16 mounted on the support A15 is horizontally and circumferentially slid on the guide ring 12 .

As shown in Figures 1, 8, and 10, there are two vertically distributed guide rods 22 sliding horizontally in the support frame 19, and the movement directions of the two guide rods 22 are perpendicular to each other; as shown in Figures 4, 8, and 11 , there is an independent lock structure between each guide rod 22 and the support frame 19 to fix the relative position of the guide rod 22 and the support frame 19; The sliding seat 30 moves horizontally in the support frame 19; as shown in Figs. It has an independent lock structure that fixes the relative position of the L block 35 and the sliding seat 30; as shown in Figures 2, 4 and 5, the L block 35 is rotatably fitted with a vertical axis A39 and a horizontal axis B43 that are perpendicular to each other and are connected to each other in a transmission. 35 has an independent lock structure that restricts the rotation of the shaft A39 relative to the L block 35; the shaft A39 and the shaft B43 are manually driven to rotate; one end of the shaft B43 is installed with a roller B45 through the support B44, and the central axis of the roller B45 is perpendicular to the shaft B43.

As shown in FIGS. 1 and 6 , the ends of each of the above-mentioned supporting feet 10 are hinged with an arc plate 11 which is matched with the vertical shaft wall of the cable well 1 . The arc plate 11 hinged on the support feet 10 can better adapt to the well wall of the cable well 1 and thus achieve effective support and fixation on the well wall, which is suitable for both the square cable well 1 and the circular cable well 1 .

As shown in FIG. 6 , the above-mentioned telescopic rod structure 4 includes a screw 5, a screw sleeve 7, a ring A9, and a rod B6. As shown in FIG. 5, the screw sleeve 7 that is rotatably matched with the circular rod B6 is threaded with a screw 5. The screw 5 and the rod B6 are respectively fixed with the rod A3 on the same side; as shown in Fig.

As shown in Figure 3, the inner thread of the threaded hole on the sliding sleeve 13 is fitted with a bolt A14 for fixing the relative position of the sliding sleeve 13 and the guide ring 12; as shown in Figures 1 and 3, the sliding sleeve 13 is fixed by two symmetrically distributed The plate A17 is fixedly connected with the two screws 5; as shown in Figures 1 and 4, the support frame 19 is fixedly connected with the two rods B6 through two symmetrically distributed fixed plates B18. The three fixing plates A17 form a three-point support for the guide ring 12, and the three fixing plates B18 form a three-point support for the supporting frame 19, which makes the fixing of the guiding ring 12 and the supporting frame 19 more stable, thereby strengthening the guiding ring 12 and the supporting frame 19. Support strength of box 19.

As shown in FIGS. 8 and 9 , the two guide rods 22 are respectively slid in the two chute C31 which are perpendicular to each other in the sliding seat 30 ; as shown in FIGS. 10 , 11 and 13 , the two ends of the guide rod 22 There are two sliding grooves A23 symmetrically opened, and the corresponding two guide rails 20 slide relatively in the two sliding grooves A23 at both ends of the guide rod 22; as shown in Figs. The chute B24 that communicates with the slot A23, the limit plate 27 is vertically slid in the chute B24, and the two ends of the limit plate 27 are respectively matched with several limit grooves 21 evenly distributed on the lower surface of the guide rail 20 on the same side; The upper surface of 22 and the circular groove 25 communicated with the corresponding chute B24 are rotatably fitted with bolts B28, and the bolts B28 are threadedly matched with the threaded holes on the limit plate 27 at the bottom of the corresponding chute B24; the inner wall of the circular groove 25 is provided with a ring in the circumferential direction. Groove B26, ring B29 mounted on bolt B28 rotates in ring groove B26.

As shown in FIGS. 5 and 9 , the inner thread of the threaded hole on the side of the sliding seat 30 that communicates with the sliding groove D32 is fitted with a bolt C34 , and the bolt C34 is matched with the vertical section of the L block 35 .

As shown in Figures 4, 5, and 14, the above-mentioned shaft A39 and shaft B43 rotate in the two shaft grooves 36 of the vertical section and the horizontal section of the L block 35 respectively; the upper end of the shaft A39 is installed with a manually rotated torsion wheel 40, and the shaft A bevel gear A41 is installed at the lower end of the A39, and the bevel gear A41 is located in the transmission groove 37 at the corner of the L block 35; the bevel gear A41 meshes with the bevel gear B42 installed on the shaft B43; the side of the vertical section of the L block 35 corresponds to the corresponding The inner thread of the threaded hole communicating with the shaft groove 36 is fitted with a bolt D46, and the bolt D46 is fitted with the shaft A39.

The working process of the present invention: in the initial state, the relative positions of the guide ring 12 and the sliding sleeve 13 are fixed by the bolts A14, and the two guide rods 22 are respectively fixed with the corresponding guide rails 20 through the corresponding bolts B28. The limit plates 27 of the 10000 are matched with the limit grooves 21 on the corresponding two guide rails 20 under the action of the corresponding bolts B28, and the limit plates 27 are located at the top of the corresponding chute B24. The bolt C34 fixes the relative position of the carriage 30 and the L block 35, and the bolt D46 fixes the relative state between the L block 35 and the shaft A39.

When using the auxiliary pulling wire of the present invention, firstly rotate the screw sleeves 7 on the two telescopic rod structures 4, the screw sleeves 7 rotate relative to the corresponding rod B6, the screw sleeve 7 drives the corresponding screw rod 5 to approach the rod B6, and the two telescopic rod structures 4 is gradually shortened so that the invention can be placed in the shaft of the cable well 1. Then, the present invention is placed in the vertical shaft of the cable well 1, so that the guide ring 12 where the roller A16 is located is just above the wellhead of the cable well 1, and the roller B45 is located at the inner corner of the cable well 1. The two screw sleeves 7 in the two telescopic rod structures 4 are then reversely rotated, so that the two telescopic rod structures 4 are elongated. When the two telescopic rod structures 4 drive the four arc plates 11 to meet the shaft wall through the two rods A3 and the four legs 10, continue to rotate the screw sleeve 7, so that the four arc plates 11 press against the shaft wall tightly to prevent The invention is fixed in the cable shaft 1 shaft. After the invention is fixed, it is enough to stop rotating the screw sleeve 7 .

Adjust the orientation of the roller A16 and the roller B45 according to the pulling direction of the cable 2 at the bottom and above the wellhead of the cable well 1. The adjustment process of the roller A16 is as follows:

Rotate the bolt A14 to release the bolt A14 from fixing the relative position of the sliding sleeve 13 and the guide ring 12, and slide the sliding sleeve 13 on the guide ring 12 so that the axis of rotation of the roller A16 is perpendicular to the direction in which the ground puller pulls the cable 2. After the position adjustment of A16 is completed, reversely rotate the bolt A14 to fix the relative position of the sliding sleeve 13 and the guide ring 12, and the position adjustment of the sliding sleeve 13 on the guide ring 12 is completed.

Next, adjust the specific orientation of the roller B45 in the cable well 1. The adjustment process for the orientation of the roller B45 is as follows:

Rotate the bolt C34 first to release the relative position fixation of the sliding seat 30 and the L block 35 by the bolt C34, so that the L block 35 slides vertically in the sliding groove D32 in the sliding seat 30, and the L block 35 passes through the shaft A39 and the bevel gear A41. , Bevel gear B42, shaft B43 and support B44 drive roller B45 to move synchronously. When the roller B45 reaches an appropriate height within the wellhead range at the inner corner of the cable well 1 , the movement of the L block 35 is stopped and the bolt C34 is rotated again to fix the relative position of the sliding block 30 and the L block 35 .

Then, rotate the two bolts B28 in turn to release the relative position fixation between the guide rod 22 and the corresponding guide rail 20 by the bolts B28. The rotation of the bolts B28 drives the limit plate 27 threaded with it to vertically downward along the chute B24. Move and disengage from the limit grooves 21 on the corresponding two guide rails 20 , as the limit plate 27 leaves the limit grooves 21 on the corresponding two guide rails 20 , the fixed position between the guide rod 22 and the corresponding two guide rails 20 is released. . The slide 30 is then acted on by hand so that the slide 30 moves horizontally within the support frame 19 . During the movement of the sliding seat 30 , the sliding seat 30 and the two guide rods 22 slide with each other. When one guide rod 22 slides relative to the sliding seat 30 , the other guiding rod 22 moves synchronously with the sliding seat 30 along the corresponding two guide rails 20 under the driving of the sliding seat 30 . While the sliding seat 30 supports the horizontal movement in the frame 19, the sliding seat 30 drives the L block 35 to move synchronously. When the L block 35 reaches the position where the downhole cable 2 is located, the movement of the sliding seat 30 is stopped and the two bolts B28 are reversely rotated in sequence. It moves upward and cooperates with the limiting grooves 21 on the corresponding two guide rails 20 to fix the relative position between the guide rod 22 and the corresponding two guide rails 20 , thereby fixing the position of the sliding seat 30 in the support frame 19 .

Then, the bolt D46 is rotated to release the fixation of the L block 35 and the shaft A39 by the bolt D46. Then, the torsion wheel 40 is rotated according to the direction in which the cable 2 is pulled by the ground pulling personnel and the position of the part of the cable 2 in the cable well 1 that interacts with the inner corner of the cable well 1 due to the pulling by the pulling personnel. Drive the shaft A39 to rotate, the shaft A39 drives the shaft B43 to rotate through the bevel gear A41 and the bevel gear B42, and the shaft B43 drives the roller B45 to rotate synchronously around the central axis of the shaft B43 through the support B44, so that the roller B45 can rotate the cable 2 in the cable well 1. It can form an effective support to avoid the part of the cable 2 in the cable well 1 from contacting and rubbing with the shaft wall due to the change of the ground wire direction, so as to ensure that the roller A16 and the roller B45 in the present invention can still be used in the case of the change of the ground wire direction. The pulled cable 2 forms an effective support, continuously improving the efficiency of the laying of the cable 2 through rolling friction.

When the roller B45 rotates to an appropriate angle around the central axis of the shaft B43, reversely rotate the bolt D46 to limit the relative rotation of the shaft A39 in the L block 35 again, so as to completely fix the orientation of the roller B45 in the cable well 1, and this is done. Adjustment of the orientation of the roller B45.

After the adjustment of the roller B45 is completed, the cable 2 is wound on the roller B45 and the roller A16 in turn, so that the roller A16 and the roller B45 actually support the Z-shaped cable 2 .

When the laying of the cable 2 is completed, the two screw sleeves 7 in the two telescopic rod structures 4 are rotated at the same time, so that the two telescopic rod structures 4 are contracted, and the four arc plates 11 are released from the interference with the shaft wall, and the present invention is changed from It can be taken out from the cable well 1.

To sum up, the beneficial effects of the present invention are: the present invention can change the relative sliding friction between the cable 2 and the well edge into the rolling friction between the cable 2 and the roller A16 and the roller B45. On the one hand, it reduces the resistance of the pulling wire, increases the speed of the pulling wire, and then improves the construction efficiency of the cable 2; The skin of 2 is worn or frayed. While improving the construction quality of cable 2, it can effectively avoid the shortening of the life of cable 2 caused by skin damage, and at the same time ensure the safety of cable 2 during actual operation after laying.

Compared with "a special support for municipal engineering interspersed cables 2" with the publication number "103956692A", it is only suitable for the situation where the direction of the pulling wire is consistent with the running direction of the cable 2 under the cable well 1. When the running direction of the cable 2 under the cable well 1 is the same, by adjusting the orientation of the roller A16 and the roller B45, the cable 2 is still on the roller A16 and the roller B45 even if the pulling direction of the cable person on the ground changes, so as to avoid the ground When the pulling direction of the cable 2 is changed, the cable 2 is contacted with the well edge or the inner corner of the cable well 1 due to the cable 2 being separated from the roller A16 and the roller B45. damage.

Claims (6)

1. A cable equipment for municipal engineering, characterized in that: it comprises a rod A, a telescopic rod structure, a foot, a guide ring, a sliding sleeve, a roller A, a supporting frame, a guide rod, a sliding seat, an L block, a shaft A , shaft B, roller B, wherein two rods A connected by two symmetrically distributed telescopic rod structures are symmetrically installed with four supporting feet matched with the wall of the cable well; A guide ring with a vertical axis, and a support frame with a vertical center axis is installed on the other rod A through the fixing plate B; the guide ring is located above the rectangular area formed by the two rods A and the two telescopic rod structures, and the support frame Opposite to the guide ring downward; the sliding sleeve installed with the roller A through the support A is slid horizontally and circumferentially on the guide ring, and the sliding sleeve has a lock structure to fix its relative position with the guide ring; There are two vertically distributed guide rods sliding horizontally in the support frame, and the movement directions of the two guide rods are perpendicular to each other; Independent lock structure; the sliding seat slidingly matched with the two guide rods moves horizontally in the support frame; the vertical section of the L block slides vertically in the sliding groove D on the sliding seat, and there is a fixed between the L block and the sliding seat The independent lock structure of the relative position of the L block and the sliding seat; the L block is rotatably matched with a vertical axis A and a horizontal axis B that are perpendicular to each other and connected by a transmission, and the L block has an independent lock structure that restricts the rotation of the axis A relative to the L block; The shaft A and the shaft B are manually driven to rotate; one end of the shaft B is installed with a roller B through the support B, and the central axis of the roller B is perpendicular to the shaft B; The above-mentioned two guide rods are respectively slid in the two vertical sliding grooves C in the sliding seat; two sliding grooves A are symmetrically opened on the end faces of both ends of the guide rod, and the corresponding two guide rails slide relative to the two sliding grooves at both ends of the guide rod. In the two chutes A; the guide rod is provided with a chute B that communicates with the chute A at both ends, and a limit plate is vertically slid in the chute B. A number of evenly distributed limit grooves are matched; the circular groove located on the upper surface of the guide rod and communicated with the corresponding chute B is rotatably fitted with a bolt B, and the bolt B is threaded with the threaded hole on the limit plate located at the bottom of the corresponding chute B. ; The inner wall of the circular groove is provided with a ring groove B in the circumferential direction, and the ring B installed on the bolt B rotates in the ring groove B. 2 . The cable equipment for municipal engineering according to claim 1 , wherein the end of each of the support feet is hinged with an arc plate matched with the wall of the cable shaft. 3 . 3. A kind of cable equipment for municipal engineering according to claim 1, characterized in that: the above-mentioned telescopic rod structure comprises a screw rod, a screw sleeve, a ring A, and a rod B, wherein the screw sleeve that rotates with the circular rod B is in the screw sleeve. The screw thread is matched with a screw rod, and the screw rod and the rod B are respectively fixed with the rod A on the same side; a ring A is installed on the rod B, and the ring A rotates in the ring groove A on the inner wall of the screw sleeve. 4. A kind of cable equipment for municipal engineering according to claim 3, characterized in that: the inner thread of the threaded hole on the sliding sleeve is matched with a bolt A for fixing the relative position of the sliding sleeve and the guide ring; the sliding sleeve passes through two The symmetrically distributed fixed plates A are fixedly connected with the two screws; the supporting frame is fixedly connected with the two rods B through the symmetrically distributed two fixed plates B. 5. A kind of cable equipment for municipal engineering according to claim 1, characterized in that: the inner thread of the threaded hole communicated with the chute D on the side of the sliding seat is matched with a bolt C, and the vertical direction of the bolt C and the L block is segment fit. 6. A kind of cable equipment for municipal engineering according to claim 1, characterized in that: the above-mentioned shaft A and shaft B rotate in the two shaft grooves of the vertical section and the horizontal section of the L block respectively; the upper end of the shaft A A manual rotating torsion wheel is installed, a bevel gear A is installed on the lower end of the shaft A, and the bevel gear A is located in the transmission groove at the corner of the L block; the bevel gear A meshes with the bevel gear B installed on the shaft B; the L block is vertical The inner thread of the threaded hole communicated with the corresponding shaft groove on the side surface of the segment is matched with a bolt D, and the bolt D is matched with the shaft A.

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