CN111660429A - Device and method for forming pipe connecting hole of reinforced concrete inspection well die for pipeline - Google Patents

Abstract

The invention discloses a pipeline reinforced concrete inspection well die connecting pipe hole forming device in the technical field of connecting pipe hole forming devices, which comprises an outer die barrel, wherein the outer die barrel comprises two groups of semicircular barrels, expanding mechanisms with the same structure are symmetrically arranged in the two groups of square holes, matched forming die mechanisms are arranged on the outer sides of the two groups of expanding mechanisms, adjusting connecting plates with the same structure are arranged at the tops of opposite sides of the two groups of expanding mechanisms, and the tops of the two groups of adjusting connecting plates are respectively fixed with the front side and the rear side of the bottom of a linkage mechanism.

Description

Device and method for forming pipe connecting hole of reinforced concrete inspection well die for pipeline

Technical Field

The invention relates to the technical field of pipe connection hole forming devices, in particular to a device and a method for forming a pipe connection hole of a reinforced concrete inspection well die for a pipeline.

Background

At present, for underground circular drainage pipelines, a vertical inspection well which is convenient for people to enter and exit the drainage pipeline is arranged at a certain distance. The drainage pipeline is buried underground in two ways: one is an underground jacking type, and the other is a ground surface type of slotting and backfilling. The inspection well is communicated with a plurality of drainage pipelines around the inspection well through a plurality of (at least two) circular connecting pipe holes on the inspection well.

The common dies include a round inspection well die and a square inspection well die, and the outer die cylinder generally consists of two semicircular cylinders or two generally U-shaped cylinders. When the caliber of the reinforced concrete inspection well is not more than 1.5 m, the cross section shapes of the inner mold cylinder body and the outer mold cylinder body and the bottom mold base plate are circular; when the caliber of the reinforced concrete inspection well is more than 1.5 m, the cross section shapes of the inner mold cylinder body and the outer mold cylinder body and the bottom mold base plate are square.

Circular takeover hole on the circular inspection shaft mould adopts external takeover hole forming device and circular inspection shaft mould cooperation to use mostly, but current takeover hole forming device has following defect when using: the diameter of the connecting pipe hole forming device cannot be adjusted, and a user needs to select the matched connecting pipe hole forming device according to the connecting pipe hole with the required diameter, so that the use cost is greatly improved, and the demoulding is inconvenient.

Disclosure of Invention

The invention aims to provide a device and a method for forming a connecting pipe hole of a reinforced concrete inspection well mould for a pipeline, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a reinforced concrete inspection well mould connects tube hole forming device for pipeline, includes the external mold barrel, the external mold barrel includes two sets of semi-circular barrel, and two sets of semi-circular barrel bottoms and bottom are all fixed and are provided with semicircular die block bedplate, the relative one end in two sets of semi-circular barrel left and right sides outer wall all is fixed and is provided with the extension limit, and the quad slit has all been seted up to two sets of semi-circular barrel mutually opposite one side, and is two sets of the quad slit symmetry is provided with the same extension mechanism of structure in the quad slit, and is two sets of the relative one side top of extension mechanism all is provided with the same adjusting connection board of structure, and is two sets of the adjusting connection board top is.

Further, expanding mechanism includes the loop forming element, loop forming element inner chamber central authorities are fixed and are provided with the backup pad, side outer wall middle part all is provided with hollow post, two sets of through the bearing activity around the backup pad hollow post outer wall is all fixed the cover and is equipped with the mounting disc, the side around the outer wall annular array of the relative one side of mounting disc is provided with multiunit tooth, the side around the hollow post is the equal activity of one side of the back of the body mutually and is provided with the rotation post, and the side is rotated the equal fixed rotary disk that is provided with of the.

Furthermore, the forming die mechanism comprises a first threaded cylinder, wherein the number of the first threaded cylinder is four, an annular array of the first threaded cylinder of the four groups is inserted in the front side of the outer wall of the ring piece, the first threaded cylinder is positioned between the supporting plate and the front side mounting disc, an annular array of the rear side of the outer wall of the ring piece is inserted with a second threaded cylinder of the four groups, the second threaded cylinder is positioned between the supporting plate and the rear side mounting disc, bearings are arranged at the joints of the first threaded cylinder, the second threaded cylinder and the ring piece, gears meshed with teeth are fixedly arranged at the ends of the first threaded cylinder and the second threaded cylinder close to the center of the ring piece, the first threaded cylinder and the second threaded cylinder are staggered with each other, a screw is inserted at the end of the first threaded cylinder and the end of the second threaded cylinder far away from the center of the ring piece, a large arc-shaped template is fixedly connected to the other ends of the screws on the first threaded cylinder of the four groups, and small And the small arc-shaped templates are positioned between the two adjacent groups of large arc-shaped templates.

Furthermore, the adjusting connection plate comprises a supporting hollow plate fixedly connected with the top of the outer wall of the inner side of the ring-shaped piece, a movable inserting plate is movably inserted into the top of the supporting hollow plate, a fixing bolt is inserted into the top of one side, away from the inner wall of the outer die barrel, of the supporting hollow plate, and threaded blind holes matched with the fixing bolt are uniformly formed in one side, away from the inner wall of the outer die barrel, of the movable plate from top to bottom.

Furthermore, the linkage mechanism comprises a hollow seat, movable seats are movably inserted at the front side and the rear side of the hollow seat, the inner cavity of the hollow seat is movably provided with a bidirectional screw rod, the middle part of the outer wall of the bidirectional screw rod is movably provided with two groups of inserts through a bearing, two groups of inserts are fixed in the middle of the inner cavity of the hollow seat, one side of the two groups of movable seats opposite to each other is fixedly inserted with a threaded sleeve matched with the bidirectional screw rod, the left end and the right end of the bidirectional screw rod respectively extend into the left threaded sleeve and the right threaded sleeve, the front end and the rear end of the bidirectional screw rod respectively extend to the middle parts of the inner cavities of the front movable seat and the rear movable seat, a driving rod is movably inserted in the center of the top of the hollow seat, a driving bevel gear is fixedly arranged at the bottom of the driving rod, and a driven bevel gear meshed with the driving bevel gear is fixedly arranged in the middle of the outer wall of the bidirectional screw rod, and the driving bevel gear and the driven bevel gear are both positioned between the two groups of inserts.

Further, the one end that the backup pad was kept away from to rotation capital portion and bottom outer wall is all fixed to be provided with the direction slider, and hollow capital portion and bottom inner wall all set up the direction spout that matches with the direction slider, one side that hollow post is close to the backup pad is cavity, one side that the direction slider is close to the backup pad is provided with the extension spring, and the extension spring other end is fixed with the backup pad, hollow capital portion outer wall annular array is fixed to be provided with horizontal rack one, the backup pad front and back side all fixed be provided with hollow post assorted barrel, and the barrel is located hollow post, the fixed horizontal rack two that meshes with horizontal rack one that is provided with of barrel inner wall annular array.

A method for forming a pipe connecting hole of a reinforced concrete inspection well die for a pipeline comprises the following steps:

s1: according to the specific size of the inspection well, a mold with a circular cross section is determined, and the device matched with the mold is selected (when the cross section shapes of the outer mold cylinder body and the inner mold cylinder body and the bottom mold base plate are circular, four groups of large arc-shaped templates in the device are matched to form a cylinder shape, and four groups of large arc-shaped templates and small arc-shaped templates are matched to form a cylinder shape);

s2: adjusting a linkage mechanism according to the diameter of the outer mold cylinder, manually rotating a driving wheel at the top of a driving rod, further driving a bidirectional screw rod to rotate through the matching of a driving bevel gear and a driven bevel gear, further enabling two groups of movable seats to move away from each other through the matching of the bidirectional screw rod and a threaded sleeve (when the driving rod rotates reversely, the two groups of movable seats move close to each other), enabling left and right adjusting connecting plates to be respectively positioned at two sides between the outer mold cylinder and the inner mold cylinder, and enabling two ends of the left and right movable seats to be respectively lapped at the upper ends of the left and right sides of a bottom mold base plate at the;

s3: according to the specific production requirements provided by construction enterprises or the specific construction conditions in the drainage pipeline laying construction process, the positions of square holes at the upper ends of the outer mold cylinders corresponding to the two expansion mechanisms are determined, and the sizes of the pipe connecting holes are adjusted according to the use requirements, wherein as shown in the attached drawing, the cylindrical pipe connecting holes with larger diameters are formed by four groups of large arc-shaped templates and four groups of small arc-shaped templates;

s4: when the diameter is not required to be larger, adjustment can be carried out, and the first adjustment method comprises the following steps: the rotary column is pulled to move outwards to be separated from the barrel body through pulling the rotary disc on the rear side, the rotary disc is manually rotated to drive the rotary column, the rotary column enables the hollow column to rotate through the guide sliding block, the mounting disc on the rear side is driven to rotate, the mounting disc on the rear side enables the four groups of threaded cylinders to synchronously rotate in the same direction through matching of teeth of the mounting disc and gears on the four groups of threaded cylinders, the screw rod on the threaded cylinder II is screwed into the threaded cylinder II, the small arc-shaped template is separated from the adjacent large arc-shaped templates to move inwards, the rotary disc is loosened after the small arc-shaped templates move inwards to a designated position, the rotary disc is driven to reset through the tension spring, the rotary column is inserted into the barrel body and fixed through matching of the transverse rack I and the transverse rack II, the mounting disc on the rear side cannot rotate, the rotary disc on the front side is pulled in the same manner after adjustment is achieved, the rotary disc is manually rotated, and the teeth of the mounting disc on the front side are matched with Moving, and further screwing the screw rod on the first threaded cylinder into the first threaded cylinder until the four groups of large arc-shaped templates are contacted with each other to form a small-diameter cylindrical connecting pipe hole; and a second adjusting method: removing screws on the fixed seat to replace small arc-shaped templates with different specifications, and reversely rotating the rotating disc at the rear side when four groups of large arc-shaped templates move inwards to form a distance matched with the replaced small arc-shaped templates, so that the four groups of replaced small arc-shaped templates move outwards to enter between the adjacent large arc-shaped templates respectively;

s5: prefabricating the inspection well, removing the outer mold cylinder after the concrete is initially set and reaches a certain strength, synchronously moving the four groups of small arc-shaped templates and the large arc-shaped template inwards to a specified position according to the step S4, and removing the device from the inspection well upwards, wherein two coaxial circular pipe connecting holes are formed in the inspection well by means of the device;

s6: the internal mold barrel is removed from the inspection well, the inspection well can be prefabricated, the height of the axes of the two circular connecting pipe holes formed in the inspection well and the angle between the axes can meet the specific production requirements of construction enterprises, or the internal mold barrel can be matched with the height of the axes of the drainage pipes around the inspection well and the angle between the axes, so that the laying construction of the drainage pipes around the inspection well can be smoothly carried out.

Compared with the prior art, the invention has the beneficial effects that:

1) the invention is provided with an expanding mechanism and a forming die mechanism, dies with different diameters are formed by matching a large arc-shaped die plate and a small arc-shaped die plate, so that a connecting pipe hole with the diameter required to be used is conveniently formed, and meanwhile, the rotating device is convenient to rapidly demould;

2) the invention is provided with the adjusting connecting plate and the linkage mechanism, so that a user can conveniently and flexibly adjust the positions of the square holes corresponding to the expanding mechanism and the forming die mechanism, and further the axis height and the angle between the axes can meet the specific production requirements provided by construction enterprises, or the axis height and the angle between the axes can be matched with the axis height and the angle between the axes of the drainage pipeline around the inspection well, thereby improving the subsequent use quality.

Drawings

FIG. 1 is a left side view of the structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of structure A of FIG. 1 according to the present invention;

fig. 4 is a structural sectional view of the linkage mechanism of the present invention.

In the figure: 1. an outer mold cylinder; 2. a bottom die base plate; 3. an extension edge; 4. a square hole; 5. an expansion mechanism; 51. an annular member; 52. a support plate; 53. a hollow column; 54. rotating the column; 541. a guide slider; 542. a tension spring; 543. a transverse rack I; 544. a barrel; 55. mounting a disc; 56. rotating the disc; 6. adjusting the connecting plate; 61. supporting the hollow slab; 62. a movable plate; 63. fixing the bolt; 7. a linkage mechanism; 71. a hollow seat; 72. a movable seat; 73. a threaded sleeve; 74. a bidirectional lead screw; 75. a drive rod; 76. a drive bevel gear; 8. a molding die mechanism; 81. a first threaded cylinder; 82. a second threaded cylinder; 83. a gear; 84. a screw; 85. a fixed seat; 86. a large arc-shaped template; 87. a small arc-shaped template.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a pipeline reinforced concrete inspection well die pipe connecting hole forming device, please refer to fig. 1, comprises an outer die barrel 1, a matched inner die barrel (not shown in the figure) is also arranged in the outer die barrel 1, the outer die barrel 1 comprises two groups of semicircular barrels, bottom die base plates 2 in a semicircular shape are fixedly arranged at the bottoms and bottoms of the two groups of semicircular barrels, extending edges 3 are fixedly arranged at the opposite ends of the outer walls of the left side and the right side of the two groups of semicircular barrels, screw holes are arranged on the extending edges 3, the two groups of semicircular barrels are jointed to form the outer die barrel 1 through the screw holes on the extending edges 3 at the left side and the right side of the semicircular barrels and external bolts, square holes 4 are formed in the opposite sides of the two groups of semicircular barrels, and electrical components in;

referring to fig. 1, the two groups of square holes 4 are symmetrically provided with the same structure of the expanding mechanisms 5, the expanding mechanisms 5 are located between the outer mold cylinder 1 and the inner mold cylinder and correspond to the square holes 4, the outer sides of the two groups of expanding mechanisms 5 are provided with the matched forming mold mechanisms 8, and the expanding mechanisms 5 realize the diameter adjustment of the forming mold mechanisms 8, so as to adjust the diameter of the pipe connecting hole;

referring to fig. 1, the top of the opposite side of the two sets of expanding mechanisms 5 are provided with adjusting connection plates 6 having the same structure, and the tops of the two sets of adjusting connection plates 6 are respectively fixed with the front and rear sides of the bottom of the linkage mechanism 7.

As shown in fig. 1 and 3: the expanding mechanism 5 comprises a ring-shaped part 51, the ring-shaped part 51 plays a role in supporting and installing a structure, a supporting plate 52 is fixedly arranged in the center of an inner cavity of the ring-shaped part 51, the supporting plate 52 plays a role in supporting and installing the structure, hollow columns 53 are movably arranged in the middle of the outer walls of the front side and the rear side of the supporting plate 52 through bearings, so that the hollow columns 53 can rotate to drive an installing disc 55 to rotate, the outer walls of the two groups of hollow columns 53 are fixedly sleeved with the installing disc 55, the installing disc 55 is positioned in the ring-shaped part 51, multiple groups of teeth are arranged on the outer wall of the opposite side of the front side and the rear side installing disc 55 in an annular array mode and are used for being matched with a gear 83, rotating columns 54 are movably arranged on the opposite sides of the front side and the rear side of the hollow columns;

as shown in fig. 1-3: the forming die mechanism 8 comprises a first thread cylinder 81, the number of the first thread cylinders 81 is four, the four first thread cylinders 81 are inserted in the front side of the outer wall of the ring member 51 in an annular array mode, the first thread cylinders 81 are located between the supporting plate 52 and the front side mounting plate 55, the rear side of the outer wall of the ring member 51 is inserted with four second thread cylinders 82 in an annular array mode, the second thread cylinders 82 are located between the supporting plate 52 and the rear side mounting plate 55, bearings are arranged at the connecting positions of the first thread cylinders 81, the second thread cylinders 82 and the ring member 51, the bearings enable the first thread cylinders 81 and the second thread cylinders 82 to rotate and avoid the first thread cylinders 81 and the second thread cylinders 82 from moving, gears 83 with teeth meshed with each other are fixedly arranged at one ends, close to the center of the ring member 51, of the first thread cylinders 81 and the second thread cylinders 82, and used for enabling the four first thread cylinders 81 or the four second thread cylinders 82 to rotate synchronously in the same direction when the mounting, the small arc-shaped templates 87 can conveniently enter between the adjacent large arc-shaped templates 86, the screw rods 84 are inserted into the screw threads at the ends of the first screw thread cylinder 81 and the second screw thread cylinder 82 far away from the center of the ring-shaped member 51, the screw rods 84 are matched with the internal threads of the first screw thread cylinder 81 or the second screw thread cylinder 82 through the external threads of the external walls of the screw rods 84, the other ends of the screw rods 84 on the first screw thread cylinders 81 are fixedly connected with the large arc-shaped templates 86, specifically, the other ends of the screw rods 84 on the first screw thread cylinders 84 are fixed with the front end of one side of the large arc-shaped template 86 close to the ring-shaped member 51, the small arc-shaped templates 87 matched with the large arc-shaped templates 86 are fixedly connected with the other ends of the screw rods 84 on the second screw thread cylinders 82 through the fixing seats 85, the screws are fixedly connected, the small arc-shaped templates 87 are positioned between the two adjacent groups of large arc-shaped templates 86, and the small arc-shaped templates 87 form a cylindrical pipe connecting hole with a larger diameter after being positioned between the two adjacent groups of large arc-shaped templates 86;

as shown in fig. 1: the adjusting connecting plate 6 comprises a supporting hollow plate 61 fixedly connected with the top of the outer wall of the inner side of the ring-shaped member 51, the supporting hollow plate 61 plays a role in supporting and installing a structure, a movable plate 62 is movably inserted into the top of the supporting hollow plate 61, the movable plate 62 is fixed with the bottom of a movable seat 72, meanwhile, a distance is reserved between the movable plates 62 at one end of the movable seat 72, the movable seat 72 is convenient to overlap and support, a fixing bolt 63 is inserted into the top of one side, away from the inner wall of the outer mold cylinder 1, of the supporting hollow plate 61, threaded blind holes matched with the fixing bolt 63 are uniformly formed in one side, away from the inner wall of the outer mold cylinder 1, of the movable plate 62 from top to bottom, threaded blind holes matched with the fixing bolt 63 are conveniently adjusted;

as shown in fig. 4: the linkage mechanism 7 comprises a hollow seat 71, the hollow seat 71 plays a role of supporting and installing a structure, movable seats 72 are movably inserted in the front side and the rear side of the hollow seat 71, movable through holes matched with the movable seats 72 are respectively formed in the front side and the rear side of the hollow seat 71, a bidirectional screw 74 is movably arranged in the inner cavity of the hollow seat 71, the bidirectional screw 74 is used for driving the two groups of movable seats 72 to approach or separate from each other, two groups of inserts are movably arranged in the middle of the outer walls of the two groups of bidirectional screw 74 through bearings, the two groups of inserts are fixed in the middle of the inner cavity of the hollow seat 71, the inserts are prevented from moving left and right under the condition that the rotation of the bidirectional screw 74 is not influenced, threaded sleeves 73 matched with the bidirectional screw 74 are fixedly inserted in the opposite sides of the two groups of movable seats 72, the threaded sleeves 73 are used for being matched with the bidirectional screw 74, the front end and the rear end, the left end and the right end of the bidirectional screw 74 extend to the middle of the inner cavity of the left and right movable seats 72 respectively, in order to prevent the bidirectional screw 74 from separating from the movable seats 72, the front end and the rear end of the top and the bottom of the bidirectional screw 74 are fixedly provided with convex blocks, the center of the top of the hollow seat 71 is movably inserted with a driving rod 75, a bearing is arranged at the joint of the driving rod 75 and the hollow seat 71, meanwhile, the top of the driving rod 75 is welded with a driving wheel for manual rotation of a user, the bottom of the driving rod 75 is fixedly provided with a driving bevel gear 76, the middle of the outer wall of the bidirectional screw 74 is fixedly provided with a driven bevel gear meshed;

as shown in fig. 3: the top and bottom outer walls of the rotating column 54 are fixedly provided with a guiding slider 541 at one end far away from the supporting plate 52, the guiding slider 541 is used for ensuring that the hollow column 53 can be driven to rotate when the rotating column 54 rotates, when the rotating column 54 is fixed, the hollow column 53 cannot rotate, and the top and bottom inner walls of the hollow column 53 are respectively provided with a guiding chute matched with the guiding slider 541, as shown in fig. 3, when the guiding slider 541 is positioned at one side of the guiding chute far away from the supporting plate 52, the rotating column 54 is separated from the cylinder 544, one side of the hollow column 53 close to the supporting plate 52 is hollow for matching the rotating column 54 with the cylinder 544, one side of the guiding slider 541 close to the supporting plate 52 is provided with a tension spring 542, the tension spring 542 drives the rotating column 54 to reset inwards to enter the cylinder 544 when the rotating disk 56 is loosened, the other end of the tension spring 542 is fixed with the supporting plate 52, the front side and the rear side of the support plate 52 are fixedly provided with cylinders 544 matched with the hollow column 53, the cylinders 544 are positioned in the hollow column 53, the annular array of the inner wall of the cylinders 544 is fixedly provided with a transverse rack II meshed with the transverse rack I543, the rotary column 54 enters the cylinders 544, the rotary column 54 cannot be rotated through the matching of the transverse rack I543 and the transverse rack II, and the mounting plate 55 cannot rotate when not in use.

A method for forming a pipe connecting hole of a reinforced concrete inspection well die for a pipeline comprises the following steps:

s1: according to the specific size of the inspection well, a mold with a circular cross section is determined, and the device matched with the mold is selected (when the cross section shapes of the outer mold cylinder 1 and the inner mold cylinder and the bottom mold base plate 2 are circular, four groups of large arc-shaped templates 86 in the device are matched to form a cylinder, and four groups of large arc-shaped templates 86 and small arc-shaped templates 87 are matched to form a cylinder);

s2: adjusting a linkage mechanism 7 according to the diameter of the outer mold cylinder 1, manually rotating a driving wheel at the top of a driving rod 75, further driving a bidirectional screw 74 to rotate through the matching of a driving bevel gear 76 and a driven bevel gear, further enabling two groups of movable seats 72 to move away from each other through the matching of the bidirectional screw 74 and a threaded sleeve 73 (when the driving rod 75 is rotated reversely, the two groups of movable seats 72 move close to each other), enabling left and right side adjusting connecting plates 6 to be respectively positioned at two sides between the outer mold cylinder 1 and the inner mold cylinder, and enabling two ends of the left and right side movable seats 72 to be respectively lapped at the upper ends of the left and right sides of a bottom mold seat;

s3: according to the specific production requirements provided by construction enterprises or the specific construction conditions in the drainage pipeline laying construction process, the positions of the square holes 4 at the upper end of the outer mold cylinder 1 corresponding to the two expansion mechanisms 5 are determined, and the sizes of the pipe connecting holes are adjusted according to the use requirements, wherein as shown in the attached figure 2, the four groups of large arc-shaped templates 86 and the four groups of small arc-shaped templates 87 form cylindrical pipe connecting holes with larger diameters;

s4: when the diameter is not required to be larger, adjustment can be carried out, and the first adjustment method comprises the following steps: the rear rotary disk 56 is pulled to further enable the rotary column 54 to move outwards to be separated from the cylinder 544, the rotary disk 56 is manually rotated to further drive the rotary column 54, the rotary column 54 enables the hollow column 53 to rotate through the guide slider 541 to further drive the rear mounting disk 55 to rotate, the rear mounting disk 55 is matched with the gears 83 on the four groups of threaded cylinders 82 through the teeth of the rear mounting disk 55 to enable the four groups of threaded cylinders 82 to synchronously rotate in the same direction, the screw 84 on the threaded cylinders 82 is further screwed into the threaded cylinders 82, further the small arc-shaped templates 87 are separated from the adjacent large arc-shaped templates 86 to move inwards, after the four groups of threaded cylinders 82 move inwards to a specified position, the rotary disk 56 is loosened, the tension spring 542 drives the rotary column 54 to reset, further the rotary column 544 is inserted into the cylinder and is fixed through the matching of the transverse rack I543 and the transverse rack II, so that the rear mounting disk 55 cannot rotate and is adjusted, similarly, the rotating disc 56 on the front side is pulled, the rotating disc 56 is manually rotated, the mounting disc 55 on the front side is matched with the gears 83 on the four groups of first threaded cylinders 81 through the teeth of the mounting disc to enable the four groups of first threaded cylinders 81 to synchronously rotate in the same direction, and further the screws 84 on the first threaded cylinders 81 are screwed into the first threaded cylinders 81 until the four groups of large arc-shaped templates 86 are mutually contacted to form a small-diameter cylindrical connecting pipe hole; and a second adjusting method: removing the screws on the fixed seat 85 to replace the small arc-shaped templates 87 with different specifications, and when the four groups of large arc-shaped templates 86 move inwards to form a distance matched with the replaced small arc-shaped templates 87, reversely rotating the rotating disc 56 at the rear side to enable the four groups of replaced small arc-shaped templates 87 to respectively move outwards to enter between the adjacent large arc-shaped templates 86;

s5: prefabricating the inspection well, removing the outer mold cylinder 1 after the concrete is initially set and reaches a certain strength, synchronously moving the four groups of small arc-shaped templates 87 and the large arc-shaped templates 86 inwards to specified positions according to the step S4, and withdrawing the device from the inspection well upwards, wherein two coaxial circular pipe connecting holes are formed in the inspection well by means of the device;

s6: the internal mold barrel is removed from the inspection well, the inspection well can be prefabricated, the height of the axes of the two circular connecting pipe holes formed in the inspection well and the angle between the axes can meet the specific production requirements of construction enterprises, or the internal mold barrel can be matched with the height of the axes of the drainage pipes around the inspection well and the angle between the axes, so that the laying construction of the drainage pipes around the inspection well can be smoothly carried out.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a reinforced concrete inspection shaft mould connects tube hole forming device for pipeline, includes external mold barrel (1), external mold barrel (1) is including two sets of semi-circular barrels, and two sets of semi-circular barrel bottoms and bottom are all fixed and are provided with semicircular die block bedplate (2), the relative one end in two sets of semi-circular barrel left and right sides outer wall is all fixed and is provided with extension limit (3), and quad slit (4), its characterized in that have all been seted up to one side mutually in two sets of semi-circular barrels mutually: two sets of the symmetry is provided with the same extension mechanism of structure (5) in quad slit (4), and is two sets of extension mechanism (5) outside all is provided with matched with forming die mechanism (8), and is two sets of the relative one side top of extension mechanism (5) all is provided with the same adjusting connection board of structure (6), and is two sets of adjusting connection board (6) top is fixed with link gear (7) bottom front and back side respectively.

2. The reinforced concrete inspection well die joint pipe hole forming device for the pipeline according to claim 1, wherein: expanding mechanism (5) include loop forming element (51), loop forming element (51) inner chamber central authorities are fixed and are provided with backup pad (52), side outer wall middle part all is provided with hollow post (53), two sets of through the bearing activity around backup pad (52) the equal fixed cover of hollow post (53) outer wall is equipped with mounting disc (55), front and back side the relative one side outer wall annular array of mounting disc (55) is provided with multiunit tooth, front and back side hollow post (53) one side of the back of the body all movable be provided with rotation post (54) mutually, and front and back side rotation post (54) one end of mutually backing the back of the body all fixedly is provided with rotary disk (56.

3. The reinforced concrete inspection well die joint pipe hole forming device for the pipeline as claimed in claim 2, wherein: the forming die mechanism (8) comprises a first threaded cylinder (81), the number of the first threaded cylinders (81) is four, the four first threaded cylinders (81) are inserted in the front side of the outer wall of the ring-shaped member (51) in an annular array mode, the first threaded cylinders (81) are located between the supporting plate (52) and the front side mounting disc (55), the rear side of the outer wall of the ring-shaped member (51) is inserted with four second threaded cylinders (82) in an annular array mode, the second threaded cylinders (82) are located between the supporting plate (52) and the rear side mounting disc (55), bearings are arranged at the connecting positions of the first threaded cylinders (81), the second threaded cylinders (82) and the ring-shaped member (51) in an annular array mode, gears (83) with meshed teeth are fixedly arranged at the ends, close to the center of the ring-shaped member (51), of the first threaded cylinders (81) and the second threaded cylinders (82) are staggered with each other, and the threads at the ends, far away from the center of the ring-shaped member (51), of the first threaded cylinders (81) and the second threaded The screw rod (84), four groups screw rod (84) other end on screw thread section of thick bamboo one (81) all fixedly connected with big arc template (86), four groups screw rod (84) other end on screw thread section of thick bamboo two (82) all through fixing base (85) fixedly connected with big arc template (86) matched with little arc template (87), little arc template (87) are located between two sets of adjacent big arc template (86).

4. The reinforced concrete inspection well die joint pipe hole forming device for the pipeline as claimed in claim 2, wherein: the adjusting connection plate (6) comprises a supporting hollow plate (61) fixedly connected with the top of the inner side outer wall of the ring-shaped piece (51), a movable plate (62) is movably inserted into the top of the supporting hollow plate (61), a fixing bolt (63) is inserted into the top of one side of the supporting hollow plate (61) far away from the inner wall of the outer mold barrel body (1), and a threaded blind hole matched with the fixing bolt (63) is uniformly formed in one side of the movable plate (62) far away from the inner wall of the outer mold barrel body (1) from top to bottom.

5. The reinforced concrete inspection well die joint pipe hole forming device for the pipeline as claimed in claim 4, wherein: the linkage mechanism (7) comprises a hollow seat (71), movable seats (72) are movably inserted in the front side and the rear side of the hollow seat (71), a bidirectional screw rod (74) is movably arranged in the inner cavity of the hollow seat (71), two groups of inserts are movably arranged in the middle of the outer wall of the bidirectional screw rod (74) through bearings and are fixed in the middle of the inner cavity of the hollow seat (71), threaded sleeves (73) matched with the bidirectional screw rod (74) are fixedly inserted in one opposite sides of the two groups of movable seats (72), the left end and the right end of the bidirectional screw rod (74) respectively extend into the threaded sleeves (73) on the left side and the right side, the front end and the rear end of the bidirectional screw rod (74) respectively extend to the middle of the inner cavity of the front-rear movable seat (72), a driving rod (75) is movably inserted in the center of the top of the hollow seat (71, and the middle part of the outer wall of the bidirectional screw (74) is fixedly provided with a driven bevel gear meshed with the driving bevel gear (76), and the driving bevel gear (76) and the driven bevel gear are both positioned between the two groups of inserts.

6. The reinforced concrete inspection well die joint pipe hole forming device for the pipeline according to claim 1, wherein: the top and bottom outer walls of the rotating column (54) are both fixedly provided with a guide sliding block (541) at one end far away from the supporting plate (52), and the inner walls of the top and the bottom of the hollow column (53) are both provided with guide sliding chutes matched with the guide sliding blocks (541), one side of the hollow column (53) close to the support plate (52) is hollow, one side of the guide sliding block (541) close to the support plate (52) is provided with a tension spring (542), the other end of the tension spring (542) is fixed with the support plate (52), a transverse rack I (543) is fixedly arranged on the outer wall of the hollow column (53) in an annular array manner, the front side and the rear side of the supporting plate (52) are both fixedly provided with a cylinder body (544) matched with the hollow column (53), and the cylinder body (544) is positioned in the hollow column (53), and a transverse rack II meshed with the transverse rack I (543) is fixedly arranged on an annular array on the inner wall of the cylinder body (544).

7. The method for forming the joint pipe hole of the reinforced concrete inspection well die for the pipeline according to any one of claims 1 to 6, wherein the method comprises the following steps:

s1: according to the specific size of the inspection well, a mold with a circular cross section is determined, and the device matched with the mold is selected (when the cross section shapes of the outer mold cylinder (1) and the inner mold cylinder and the bottom mold base plate (2) are circular, four groups of large arc-shaped templates (86) in the device are matched to form a cylinder shape, and four groups of large arc-shaped templates (86) and small arc-shaped templates (87) are matched to form a cylinder shape);

s2: adjusting a linkage mechanism (7) according to the diameter of the outer mold cylinder (1), manually rotating a driving wheel at the top of a driving rod (75), further driving a bidirectional screw rod (74) to rotate through the matching of a driving bevel gear (76) and a driven bevel gear, further enabling two groups of movable seats (72) to move away from each other through the matching of the bidirectional screw rod (74) and a threaded sleeve (73) (reversely rotating the driving rod (75), enabling the two groups of movable seats (72) to move close to each other), enabling left and right adjusting connecting plates (6) to be respectively located at two sides between the outer mold cylinder (1) and an inner mold cylinder, and enabling two ends of the left and right movable seats (72) to be respectively lapped at the upper ends of the left and right sides of a bottom mold seat plate (2) at the;

s3: according to the specific production requirements provided by construction enterprises or the specific construction conditions in the drainage pipeline laying construction process, the positions of square holes (4) at the upper end of an outer mold cylinder body (1) corresponding to two expansion mechanisms (5) are determined, and the size of a connecting pipe hole is adjusted according to the use requirement, wherein as shown in the attached drawing 2, four groups of large arc-shaped templates (86) and four groups of small arc-shaped templates (87) form a cylindrical connecting pipe hole with a larger diameter;

s4: when the diameter is not required to be larger, adjustment can be carried out, and the first adjustment method comprises the following steps: the rotary column (54) is moved outwards to be separated from the cylinder body (544) by pulling the rotary disc (56) at the rear side, the rotary disc (56) is manually rotated to drive the rotary column (54), the rotary column (54) enables the hollow column (53) to rotate through the guide sliding block (541) to further drive the mounting disc (55) at the rear side to rotate, the mounting disc (55) at the rear side is matched with the gears (83) on the four groups of threaded cylinders (82) through teeth of the mounting disc to enable the four groups of threaded cylinders (82) to synchronously rotate in the same direction, further the screw rods (84) on the threaded cylinders (82) are screwed into the threaded cylinders (82), further the small arc-shaped templates (87) are separated from the adjacent large arc-shaped templates (86) to move inwards, after the small arc-shaped templates (87) move inwards to a designated position, the rotary disc (56) is loosened, the tension spring (542) drives the rotary column (54) to reset, and further the rotary column (54), the first transverse rack (543) is matched with the second transverse rack to fix the first transverse rack, so that the mounting disc (55) on the rear side cannot rotate, after the adjustment is completed, the rotating disc (56) on the front side is pulled in the same way, the rotating disc (56) is manually rotated, the mounting disc (55) on the front side is matched with the gears (83) on the first four groups of threaded cylinders (81) through teeth of the mounting disc to enable the first four groups of threaded cylinders (81) to synchronously rotate in the same direction, and further the screw (84) on the first threaded cylinder (81) is screwed into the first threaded cylinder (81) until the four groups of large arc-shaped templates (86) are contacted with each other to form a small-diameter cylindrical connecting pipe hole; and a second adjusting method: removing screws on the fixed seat (85) to replace small arc-shaped templates (87) with different specifications, and when four groups of large arc-shaped templates (86) move inwards to form a distance matched with the replaced small arc-shaped templates (87), reversely rotating the rotating disk (56) at the rear side to enable the four groups of replaced small arc-shaped templates (87) to respectively move outwards to enter between the adjacent large arc-shaped templates (86);

s5: prefabricating an inspection well, removing the outer mold cylinder (1) after the concrete is initially set and reaches a certain strength, synchronously moving four groups of small arc-shaped templates (87) and large arc-shaped templates (86) inwards to a specified position according to step S4, and withdrawing the device from the inspection well upwards, wherein two coaxial circular pipe connecting holes are formed in the inspection well by means of the device;

s6: the internal mold barrel is removed from the inspection well, the inspection well can be prefabricated, the height of the axes of the two circular connecting pipe holes formed in the inspection well and the angle between the axes can meet the specific production requirements of construction enterprises, or the internal mold barrel can be matched with the height of the axes of the drainage pipes around the inspection well and the angle between the axes, so that the laying construction of the drainage pipes around the inspection well can be smoothly carried out.

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