A concrete manhole cover rapid dehydration forming mold

Abstract

The invention relates to the field of concrete forming molds, and specifically to a concrete manhole cover rapid dehydration forming mold, comprising a manhole cover forming mold base, a pressing component and a vibration support component, wherein the outer peripheral side of the manhole cover forming mold base is horizontally fixed with a matching assembly ring by bolts, and a dehydration assembly ring and a dehydration cover plate that can be quickly assembled and disassembled are arranged above the manhole cover forming mold base as a sealing upper mold structure, and a dehydration filter cloth can be detachably installed between the dehydration assembly ring and the dehydration cover plate as a dehydration filtration structure for concrete slurry, and the overall structure is designed to be split from the manhole cover forming mold base, which is convenient for independent maintenance and cleaning operations during grouting of the manhole cover forming mold base, and in addition, it is convenient to combine and assemble for use with the pressing component and the vibration support component, and the multi-element dehydration principle of high-pressure airflow is used during vibration, so the dehydration efficiency is high, and the flatness of the concrete manhole cover after molding is good.

Description

Technical Field

[0001] The invention relates to the field of concrete forming moulds, in particular to a concrete manhole cover rapid dehydration forming mould. Background Art

[0002] There are many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipelines, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an outlet to the ground at intervals. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed. The cover used to cover the manhole is called a manhole cover. Cement manhole cover is a product made of cement and molding molds, and the shapes are mainly round and square;

[0003] The prior art patent CN117301268A discloses a composite fiber concrete manhole cover forming mold and method thereof that can realize rapid dehydration, including a base, a vibrating frame, a forming upper mold base, a forming lower mold base and a hydraulic cylinder, which solves the problem that the existing forming mold cannot quickly dehydrate the excess water contained in the composite fiber concrete, so that the formed composite fiber concrete manhole cover cannot meet the use requirements. When it is used, the water in the concrete is centrifugally discharged mainly by shaking the mold left and right and centrifugally rotating;

[0004] However, when the concrete contains more water, under the action of centrifugal rotation dehydration, the filter cloth serves as the main support on the side, and the manhole cover concrete will accumulate around the forming mold, resulting in poor flatness of the manhole cover structure. In addition, the dehydration filter cloth is not convenient to be maintained separately after long-term use, which affects the efficiency of manhole cover forming and use. Summary of the invention

[0005] The purpose of the present invention is to provide a concrete manhole cover rapid dehydration forming mold to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a concrete manhole cover rapid dehydration forming mold, the concrete manhole cover rapid dehydration forming mold comprising:

[0007] A manhole cover forming die seat, wherein a matching assembly ring is horizontally fixed on the outer peripheral side of the manhole cover forming die seat by bolts, a dehydration filter assembly is horizontally provided on the upper end of the matching assembly ring by a press-fit assembly, and the dehydration filter assembly comprises a dehydration assembly ring, a dehydration cover plate, a dehydration filter cloth and a support filter plate, wherein the dehydration cover plate covers one side of the dehydration assembly ring, the support filter plate is arranged in the dehydration cover plate, the dehydration filter cloth is located between the dehydration cover plate and the dehydration assembly ring, and one side of the support filter plate is in contact with the dehydration filter cloth;

[0008] The pressing assembly includes two horizontal beam shafts and two semicircular connecting plates. The two horizontal beam shafts are horizontally symmetrically arranged on both sides of the matching assembly ring. A supporting turntable is arranged on one side of the two horizontal beam shafts. The two semicircular connecting plates are horizontally symmetrically arranged on both sides of the dehydration assembly ring, and the two semicircular connecting plates are respectively arranged corresponding to the two horizontal beam shafts.

[0009] A vibration support assembly comprises a bottom mounting box, a telescopic push rod, a vibration support plate and two flip support frames, the two flip support frames are vertically symmetrically arranged at the upper end of the bottom mounting box, and two supporting turntables are respectively overlapped with the upper ends of the two flip support frames.

[0010] Preferably, combined pressure rings are horizontally provided at both upper and lower ends of the outer peripheral side of the dehydration filter cloth, and the two combined pressure rings are fixedly connected by a number of pins. The cross-section of the dehydration assembly ring is an L-shaped structure, and the dehydration filter cloth horizontally covers the raised side of the dehydration assembly ring, and the lower end of the combined pressure ring located below is in contact with the upper side surface of the horizontal end of the dehydration assembly ring.

[0011] Preferably, a plurality of assembly positioning rods are vertically symmetrically provided on the upper end of the dehydration assembly ring, and the plurality of assembly positioning rods are arranged in a circular array. The outer peripheral side of the combined pressure ring contacts one side of the plurality of assembly positioning rods, and the upper and lower ends of the assembly positioning rods are respectively provided with a first thread and a second thread. The assembly positioning rod is provided with a first fixing nut through the second thread sleeve at the lower end, and one side of the lower end of the plurality of first fixing nuts respectively overlaps the upper end of the combined pressure ring above the dehydration filter cloth.

[0012] Preferably, a plurality of pads are symmetrically provided in an annular shape at the lower end of the dehydration cover plate, and a matching groove is vertically penetrated on one side of the annular pad of the dehydration cover plate, and a plurality of assembly positioning rods are provided with the upper ends of the first threads which respectively penetrate the matching grooves of the dehydration cover plate and are sleeved with the second fixing nut, and the lower end of the pad is in contact with the upper end of the first fixing nut.

[0013] Preferably, the diameter of the dehydration assembly ring is larger than the diameter of the manhole cover forming die base, the dehydration assembly ring is horizontally arranged above the mating assembly ring, a receiving groove is provided on the side of the supporting turntable close to the horizontal beam axis, a press-fit connection seat is provided in the receiving groove for movably sleeved on the horizontal beam axis, a conical groove is provided on one side of the press-fit connection seat, the outer side surfaces of the two semicircular connecting plates away from the dehydration assembly ring are inclined surfaces, and one end of the semicircular connecting plate with the inclined surface is inserted into the conical groove of the press-fit connection seat.

[0014] Preferably, a plurality of spring grooves are horizontally symmetrically provided on one side of the supporting turntable away from the storage groove, and a plurality of synchronous push rods are horizontally symmetrically provided on one side of the press-fit connection seat. The plurality of synchronous push rods are respectively movable horizontally through the plurality of spring grooves and are commonly provided with a pushing ring, and a reset spring is sleeved on one side of the synchronous push rod placed in the spring groove.

[0015] Preferably, a double-threaded tube is provided at the center of one side of the supporting turntable away from the horizontal beam axis, and the double-threaded tube is provided with a compression nut through an external thread sleeve, and one side of the compression nut is arranged in contact with the push ring.

[0016] Preferably, a first annular groove is horizontally opened in the mating assembly ring, and a plurality of mating through pipes are vertically symmetrically arranged at the upper end of the mating assembly ring connected to the first annular groove, and a plurality of assembly positioning rods are all penetrated through the dehydration assembly ring to form a coupling groove, and the assembly positioning rod is located at the upper end of the coupling groove and is connected to a first adapter groove, and a docking hole is horizontally penetrated on one side of the first adapter groove, and a second annular groove is opened on one side of the dehydration cover plate, and a plurality of second adapter grooves are opened in the second annular groove and connected to the mating groove, and the second adapter groove is arranged opposite to the docking hole, and an external groove is opened on one side of the first annular groove that penetrates the horizontal beam shaft and the supporting turntable and is connected to the double threaded pipe, and an air supply joint is provided on one side of the double threaded pipe through an internal thread sealing plug.

[0017] Preferably, a dehydration cavity is opened in the dehydration cover plate, the supporting filter plate is horizontally arranged on one side of the dehydration cavity, one side of the supporting filter plate is in contact with the dehydration filter cloth, a plurality of diversion holes are obliquely opened in the second annular groove connected to the dehydration cavity, the plurality of diversion holes are respectively inclined to the opposite side of the supporting filter plate, and a drainage outlet is opened in the center of the upper end of the dehydration cover plate.

[0018] Preferably, the telescopic push rod is vertically arranged at the center of the bottom installation box, the shock-absorbing plate is horizontally arranged at the upper end of the telescopic push rod, a plurality of shock-absorbing support springs are provided in a circular array on the upper end of the shock-absorbing plate, and a vibration support plate is horizontally arranged on the upper end of the plurality of shock-absorbing support springs. Two sides of the vibration support plate are movably connected to two flip support frames, and arc-shaped placement grooves are provided at the upper ends of the two flip support frames. The lower ends of the two supporting turntables are respectively rotatably inserted into the two arc-shaped placement grooves, and a vibration module is provided at the lower end of the shock-absorbing support spring.

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

[0020] A dehydration assembly ring and a dehydration cover plate that can be quickly assembled and disassembled are arranged above the manhole cover forming mold base as a sealing upper mold structure, and a dehydration filter cloth can be detachably installed between the dehydration assembly ring and the dehydration cover plate as a dehydration filtration structure for the concrete slurry. The overall structure is designed to be separate from the manhole cover forming mold base, which is convenient for independent maintenance and cleaning operations during grouting of the manhole cover forming mold base. In addition, it is convenient to combine and assemble with the pressing component and the vibration support component. The multi-dehydration principle of the high-pressure airflow is used during vibration, the dehydration efficiency is high, and the flatness of the concrete manhole cover after forming is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of part A;

[0023] Figure 3 It is a schematic diagram of the structure of the present invention from a second viewing angle;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of part B;

[0025] Figure 5 It is a partial side-cut schematic diagram of the structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the C part;

[0027] Figure 7 For the present invention Figure 6 Schematic diagram of the D part;

[0028] Figure 8 For the present invention Figure 6 Schematic diagram of part E;

[0029] Fig. 9 For the present invention Figure 5 Schematic diagram of the F part;

[0030] Fig.10 It is a schematic diagram of the matching structure of the combined pressure ring and the assembly positioning rod of the present invention;

[0031] Fig.11 This is a schematic diagram of the dehydration assembly ring structure of the present invention;

[0032] Fig.12 It is a schematic diagram of the cooperation between the manhole cover forming die base and the vibration support assembly of the present invention.

[0033] In the figure: manhole cover forming die base 1, matching assembly ring 2, bottom installation box 3, flip support frame 4, telescopic push rod 5, vibration support plate 6, dehydration assembly ring 7, dehydration filter cloth 8, combined pressure ring 10, assembly positioning rod 11, first fixing nut 12, dehydration cover plate 13, second fixing nut 14, dehydration cavity 15, support filter plate 16, horizontal beam shaft 17, supporting turntable 18, semicircular connecting plate 19, storage groove 20, press-fit connection seat 21, Spring groove 22, synchronous push rod 23, push ring 24, return spring 25, double threaded tube 26, press-fit nut 27, first annular groove 28, external groove 29, air supply joint 30, matching through pipe 31, first adapter groove 32, second annular groove 33, second adapter groove 34, diverter hole 35, docking hole 36, give-way groove 37, shock-absorbing plate 38, shock-absorbing support spring 39, vibration module 40, drain outlet 41, arc-shaped placement groove 42. DETAILED DESCRIPTION

[0034] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 12 , the present invention provides the following technical solutions:

[0036] Embodiment 1: A concrete manhole cover rapid dehydration forming mold, including a manhole cover forming mold base 1, the outer peripheral side of the manhole cover forming mold base 1 is horizontally fixed with a matching assembly ring 2 by bolts, the upper end of the matching assembly ring 2 is horizontally provided with a dehydration filter assembly by a press-fit assembly, the dehydration filter assembly includes a dehydration assembly ring 7, a dehydration cover plate 13, a dehydration filter cloth 8 and a support filter plate 16, the dehydration cover plate 13 covers one side of the dehydration assembly ring 7, the support filter plate 16 is arranged in the dehydration cover plate 13, the dehydration filter cloth 8 is located between the dehydration cover plate 13 and the dehydration assembly ring 7, and the support filter plate 16 is provided in the dehydration cover plate 13. One side of the filter support plate 16 is in contact with the dewatering filter cloth 8. The upper and lower ends of the outer peripheral side of the dewatering filter cloth 8 are horizontally provided with combined pressure rings 10. The two combined pressure rings 10 are fixedly connected by a plurality of pins. The cross section of the dewatering assembly ring 7 is an L-shaped structure. The dewatering filter cloth 8 horizontally covers the raised side of the dewatering assembly ring 7. The lower end of the combined pressure ring 10 located below is in contact with the upper side of the horizontal end of the dewatering assembly ring 7. The dewatering filter cloth 8 is horizontally tightened by the drop between the combined pressure ring 10 and the upper end of the dewatering assembly ring 7, thereby improving the support and filtering effect of the dewatering filter cloth 8.

[0037] A plurality of assembly positioning rods 11 are vertically symmetrically provided at the upper end of the dehydration assembly ring 7, and the plurality of assembly positioning rods 11 are arranged in a ring array. The outer peripheral side of the combined pressure ring 10 contacts one side of the plurality of assembly positioning rods 11, and the upper and lower ends of the assembly positioning rods 11 are respectively provided with a first thread and a second thread. The assembly positioning rod 11 is sleeved with a first fixing nut 12 through the second thread at the lower end, and one side of the lower end of the plurality of first fixing nuts 12 overlaps the upper end of the combined pressure ring 10 above the dehydration filter cloth 8, respectively. The plurality of assembly positioning rods 11 can facilitate the placement of the combined pressure ring 10 when the dehydration filter cloth 8 is assembled, and at the same time, the plurality of first fixing nuts 12 can press down and tighten the combined pressure ring 10 to keep the dehydration filter cloth 8 in a taut state. In addition, when the plurality of first fixing nuts 12 are threadedly connected to the assembly positioning rods 11, they are assembled by diagonally tightening;

[0038] A plurality of pads are symmetrically arranged at the lower end of the dewatering cover plate 13 in an annular manner. The dewatering cover plate 13 is vertically penetrated with a matching groove on one side of the annular pad. The upper ends of the plurality of assembly positioning rods 11 with first threads respectively penetrate the matching grooves of the dewatering cover plate 13 and are sleeved with a second fixing nut 14. The lower end of the pad is in contact with the upper end of the first fixing nut 12. The manhole cover forming die base 1 is used in combination with the matching assembly ring 2, and the dewatering assembly ring 7 is used in combination with the dewatering cover plate 13. When the manhole cover forming die base 1 is filled with concrete slurry, the dewatering cover plate 13 with the dewatering filter cloth 8 is connected to the manhole cover forming die base 1;

[0039] A pressing assembly is set to combine the dewatering filter cloth 8 with the manhole cover forming die base 1 for use, and the pressing assembly includes two horizontal beam shafts 17 and two semicircular connecting plates 19. The two horizontal beam shafts 17 are horizontally symmetrically arranged on both sides of the matching assembly ring 2. One side of the two horizontal beam shafts 17 is provided with a supporting turntable 18. The two semicircular connecting plates 19 are horizontally symmetrically arranged on both sides of the dewatering assembly ring 7, and the two semicircular connecting plates 19 are respectively arranged corresponding to the two horizontal beam shafts 17. The diameter of the dewatering assembly ring 7 is larger than the diameter of the manhole cover forming die base 1. The dewatering assembly ring 7 is horizontally arranged above the matching assembly ring 2. A receiving groove 20 is provided on one side of the support turntable 18 close to the horizontal beam axis 17, and a press-fit connection seat 21 is provided in the receiving groove 20 for movably sleeved with the horizontal beam axis 17, and a conical groove is provided on one side of the press-fit connection seat 21, and the outer side surfaces of the two semicircular connecting plates 19 away from the dehydration assembly ring 7 are inclined surfaces, and one end of the semicircular connecting plate 19 with the inclined surface is inserted into the conical groove of the press-fit connection seat 21, when the dehydration assembly ring 7 is overlapped with the horizontal beam axis 17 of the matching assembly ring 2 through the semicircular connecting plate 19, the semicircular connecting plate 19 can be press-fitted and connected with the horizontal beam axis 17 through the press-fit connection seat 21;

[0040] A plurality of spring grooves 22 are horizontally symmetrically provided on one side of the supporting turntable 18 away from the storage groove 20, and a plurality of synchronous push rods 23 are horizontally symmetrically provided on one side of the press-fit connection seat 21. The plurality of synchronous push rods 23 are horizontally movable and penetrate the plurality of spring grooves 22 respectively and are commonly provided with a pushing ring 24, and a return spring 25 is sleeved on one side of the synchronous push rods 23 placed in the spring groove 22. A double threaded tube 26 is provided at the center of the side of the supporting turntable 18 away from the horizontal beam axis 17, and a press-fit nut 27 is sleeved on the double threaded tube 26 through an external thread, and one side of the press-fit nut 27 is arranged in contact with the pushing ring 24 to control the movement of the press-fit connection seat 21.

[0041] In this embodiment, the matching assembly ring 2 is assembled with the manhole cover forming die seat 1 by bolts, and the cost of later maintenance and replacement is low. Then, the dewatering filter cloth 8 is horizontally tightened and connected with the dewatering assembly ring 7 by the combined pressure ring 10, the assembly positioning rod 11 and the first fixing nut 12. Subsequently, a dewatering cover plate 13 is fixedly installed on one side of the dewatering filter cloth 8 of the dewatering assembly ring 7 by the assembly positioning rod 11. While the dewatering filter cloth 8 is clamped, fixed and sealed, it is used as the subsequent dewatering collection and external discharge. When the concrete in the manhole cover forming die seat 1 is filled, the dewatering cover plate 13 is fixedly installed on the one side of the dewatering filter cloth 8 of the dewatering assembly ring 7 by the assembly positioning rod 11. The water assembly ring 7 is put on the outside of the manhole cover forming mold base 1 from the top of the manhole cover forming mold base 1, the dehydration filter cloth 8 covers the grouting port of the manhole cover forming mold base 1, and the semicircular connecting plate 19 semi-encloses the horizontal beam axis 17 from the top of the horizontal beam axis 17. At this time, the threaded rotation pushes the press-fit nut 27, and the press-fit nut 27 pushes the push ring 24, the synchronous push rod 23 and the press-fit connecting seat 21 to the position of the semicircular connecting plate 19, and then under the cooperation of the conical surface, the dehydration assembly ring 7 is press-fitted with the matching assembly ring 2 of the manhole cover forming mold base 1.

[0042] Embodiment 2: On the basis of embodiment 1, a high-pressure airflow is introduced into the dehydration cover plate 13 to increase the dehydration efficiency. A first annular groove 28 is horizontally provided in the matching assembly ring 2. The upper end of the matching assembly ring 2 is connected to the first annular groove 28 and a plurality of matching through pipes 31 are vertically symmetrically provided. The lower ends of the plurality of assembly positioning rods 11 are all penetrated through the dehydration assembly ring 7 to form a joint groove. The assembly positioning rod 11 is located at the upper end of the joint groove and is connected to a first transfer groove 32. A docking hole 36 is horizontally provided on one side of the first transfer groove 32. A first transfer groove 32 is provided on one side of the dehydration cover plate 13. Two annular grooves 33, a plurality of second transfer grooves 34 are provided in the second annular groove 33 and connected to the matching groove, and the second transfer grooves 34 are arranged opposite to the docking hole 36, and one side of the first annular groove 28 penetrates the horizontal beam shaft 17 and the supporting turntable 18 and is connected to the double-threaded pipe 26 to provide an external connection groove 29, and one side of the double-threaded pipe 26 is provided with an air supply joint 30 through an internal thread sealing plug, and the air supply joint 30 is connected to a hose for delivering high-pressure gas, and the hose is connected to the air compressor, and the matching through pipe 31 can be covered by a casing when the manhole cover forming mold base 1 is grouting;

[0043] A dehydration cavity 15 is provided in the dehydration cover plate 13, and a support filter plate 16 is horizontally arranged on one side of the dehydration cavity 15. One side of the support filter plate 16 is in contact with the dehydration filter cloth 8. A plurality of diverter holes 35 are obliquely provided in the second annular groove 33 to communicate with the dehydration cavity 15. The plurality of diverter holes 35 are respectively inclined to the opposite side of the support filter plate 16. A drain port 41 is provided at the center of the upper end of the dehydration cover plate 13. High-pressure gas can enter the dehydration cover plate 13 and then be discharged from the drain port 41. The high-pressure gas fed in by the gas supply joint 30 can be a gas containing heat energy after being heated by a tubular heat exchanger.

[0044] A vibration support assembly is provided to assist the rapid dehydration of the concrete slurry in the manhole cover forming mold base 1. The vibration support assembly comprises a bottom installation box 3, a telescopic push rod 5, a vibration support plate 6 and two flip support frames 4. The two flip support frames 4 are respectively and vertically symmetrically arranged at the upper end of the bottom installation box 3, and the two supporting turntables 18 are respectively overlapped with the upper ends of the two flip support frames 4. The telescopic push rod 5 is vertically arranged at the center of the bottom installation box 3. The shock-absorbing plate 38 is horizontally arranged at the upper end of the telescopic push rod 5. A plurality of shock-absorbing support springs 39 are arranged in a circular array at the upper end of the shock-absorbing plate 38. The vibration support plate 6 is horizontally arranged at the upper ends of the plurality of shock-absorbing support springs 39. The two sides of the vibration support plate 6 are respectively movably sleeved with the two flip support frames 4. The upper ends of the two flip support frames 4 are both provided with arc placement grooves 42. The lower ends of the two supporting turntables 18 are respectively rotated and inserted into the two arc placement grooves 42. A vibration module 40 is arranged at the lower end of the shock-absorbing support spring 39. The vibration module 40 is a common electric eccentric vibration device in the prior art.

[0045] The manhole cover forming die base 1 and the dewatering cover plate 13 are turned over by the rotation of the supporting turntable 18 in the arc-shaped placement groove 42, and the upper part of the vibration support plate 6 can be in horizontal contact with the end faces of the manhole cover forming die base 1 and the dewatering cover plate 13;

[0046] A water trough 37 is horizontally opened at the center of the upper end of the manhole cover forming mold base 1. When the dehydration cover plate 13 contacts the upper end of the vibration support plate 6, the drain port 41 is inserted into the water trough 37, and the width of the vibration support plate 6 is greater than the width of the bottom installation box 3. The liquid discharged from the drain port 41 flows down from both sides of the vibration support plate 6.

[0047] In this embodiment, when pouring concrete slurry in the manhole cover forming mold base 1, the vibration support plate 6 is fitted with the lower end of the manhole cover forming mold base 1. At this time, the vibration of the vibration module 40 controls the manhole cover forming mold base 1 to vibrate at a high frequency. At this time, the concrete slurry in the manhole cover forming mold base 1 quickly levels and settles. When the slurry is flush with the upper end of the manhole cover forming mold base 1, the vibration module 40 stops vibrating, and the dehydration assembly ring 7 with the dehydration cover plate 13 and the dehydration filter cloth 8 is quickly assembled with the manhole cover forming mold base 1. Then the vibration support plate 6 is lowered by the telescopic push rod 5, and the manhole cover forming mold base 1 is flipped under the relative action of the supporting turntable 18 and the flip support frame 4. When one side of the dehydration cover plate 13 When flipped to the bottom of the manhole cover forming mold base 1, the vibration support plate 6 is lifted and contacts the dehydration cover plate 13 to keep the dehydration cover plate 13 in a horizontal posture, and then the vibration module 40 continues to vibrate. At this time, the moisture in the concrete in the manhole cover forming mold base 1 flows from the dehydration filter cloth 8 to the dehydration cavity 15 under the action of vibration. At this time, the support filter plate 16 serves as a horizontal auxiliary support for the dehydration filter cloth 8 to maintain the flatness of the concrete manhole cover in the manhole cover forming mold base 1. In addition, during the vibration drainage process, high-pressure gas or heat-containing gas can be sent into the dehydration cavity 15 through the air supply joint 30 to accelerate the separation of moisture in the concrete in the manhole cover forming mold base 1, thereby improving the production efficiency of concrete manhole covers;

[0048] In addition, after the dehydration is completed, the dehydration assembly ring 7 can be restored to face upward, and after the dehydration assembly ring 7 and the dehydration cover plate 13 are removed, the dehydration filter cloth 8 can be cleaned separately. At the same time, the dehydrated concrete material in the manhole cover forming mold base 1 can be conveniently filled into the shaping mold piece. After the shaping and character mold piece are supplemented, the manhole cover forming mold base 1 can be turned downward, and the initially formed concrete manhole cover falls on the vibrating support plate 6, which is convenient for removal and transportation.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete manhole cover rapid dehydration forming mold, characterized in that: The concrete manhole cover rapid dehydration forming mold comprises: A manhole cover forming die base (1), wherein a matching assembly ring (2) is horizontally fixedly provided on the outer peripheral side of the manhole cover forming die base (1) by bolts, a dehydration filter assembly is horizontally provided on the upper end of the matching assembly ring (2) by a press-fit assembly, and the dehydration filter assembly comprises a dehydration assembly ring (7), a dehydration cover plate (13), a dehydration filter cloth (8) and a support filter plate (16), the dehydration cover plate (13) covers one side of the dehydration assembly ring (7), the support filter plate (16) is arranged in the dehydration cover plate (13), the dehydration filter cloth (8) is located between the dehydration cover plate (13) and the dehydration assembly ring (7), and one side of the support filter plate (16) is in contact with the dehydration filter cloth (8); The pressing assembly comprises two horizontal beam shafts (17) and two semicircular connecting plates (19), the two horizontal beam shafts (17) are horizontally symmetrically arranged on both sides of the matching assembly ring (2), one side of the two horizontal beam shafts (17) is provided with a supporting rotating disk (18), the two semicircular connecting plates (19) are horizontally symmetrically arranged on both sides of the dehydration assembly ring (7), and the two semicircular connecting plates (19) are respectively arranged corresponding to the two horizontal beam shafts (17); A vibration support assembly, the vibration support assembly comprising a bottom mounting box (3), a telescopic push rod (5), a vibration support plate (6) and two flip support frames (4), the two flip support frames (4) being respectively arranged vertically and symmetrically on the upper ends of the bottom mounting box (3), and two supporting turntables (18) respectively overlapping the upper ends of the two flip support frames (4); Combined pressure rings (10) are horizontally provided at both upper and lower ends of the outer peripheral side of the dewatering filter cloth (8), and the two combined pressure rings (10) are fixedly connected by a plurality of pins. The cross-section of the dewatering assembly ring (7) is an L-shaped structure. The dewatering filter cloth (8) horizontally covers the raised side of the dewatering assembly ring (7), and the lower end of the combined pressure ring (10) located below is in contact with the upper side surface of the horizontal end of the dewatering assembly ring (7); A plurality of assembly positioning rods (11) are vertically symmetrically provided at the upper end of the dehydration assembly ring (7), and the plurality of assembly positioning rods (11) are arranged in a ring array. The outer peripheral side of the combined pressure ring (10) contacts one side of the plurality of assembly positioning rods (11). The upper and lower ends of the assembly positioning rods (11) are respectively provided with a first thread and a second thread. The assembly positioning rods (11) are sleeved with a first fixing nut (12) through the second thread at the lower end, and one side of the lower end of the plurality of first fixing nuts (12) overlaps the upper end of the combined pressure ring (10) above the dehydration filter cloth (8). A first annular groove (28) is horizontally formed in the mating assembly ring (2); the upper end of the mating assembly ring (2) is connected to the first annular groove (28) and is vertically symmetrically provided with a plurality of mating through pipes (31); the lower ends of the plurality of assembly positioning rods (11) penetrate the dehydration assembly ring (7) to form a joint groove; the assembly positioning rods (11) are located at the upper end of the joint groove and are connected to a first transfer groove (32); a docking hole (36) is horizontally penetrated through one side of the first transfer groove (32); a second annular groove (33) is formed in one side of the dehydration cover plate (13); a plurality of second transfer grooves (34) are formed in the second annular groove (33) and are connected to the mating groove; the second transfer grooves (34) and the docking holes (36) are arranged opposite to each other; one side of the first annular groove (28) penetrates the horizontal beam shaft (17) and the supporting turntable (18) and is connected to the double threaded pipe (26) to form an external connection groove (29); and a gas supply joint (30) is provided on one side of the double threaded pipe (26) through an internal thread sealing plug connection.

2. A concrete manhole cover rapid dehydration forming mold according to claim 1, characterized in that: A plurality of pads are symmetrically arranged in an annular shape at the lower end of the dehydration cover plate (13), and a matching groove is vertically penetrated on one side of the annular pad of the dehydration cover plate (13). The upper ends of the plurality of assembly positioning rods (11) provided with a first thread respectively penetrate the matching groove of the dehydration cover plate (13) and are sleeved with a second fixing nut (14), and the lower end of the pad is in contact with the upper end of the first fixing nut (12).

3. A concrete manhole cover rapid dehydration forming mold according to claim 2, characterized in that: The diameter of the dehydration assembly ring (7) is larger than the diameter of the manhole cover forming die seat (1). The dehydration assembly ring (7) is horizontally arranged above the matching assembly ring (2). A receiving groove (20) is provided on a side of the supporting turntable (18) close to the horizontal beam axis (17). A press-fit connection seat (21) is provided in the receiving groove (20) and is movably sleeved with the horizontal beam axis (17). A conical groove is provided on one side of the press-fit connection seat (21). The outer side surfaces of the two semicircular connection plates (19) away from the dehydration assembly ring (7) are inclined surfaces, and one end of the semicircular connection plate (19) provided with the inclined surface is inserted into the conical groove of the press-fit connection seat (21).

4. A concrete manhole cover rapid dehydration forming mold according to claim 3, characterized in that: A plurality of spring grooves (22) are symmetrically provided on one side of the supporting turntable (18) away from the receiving groove (20), and a plurality of synchronous push rods (23) are symmetrically provided on one side of the press-fit connection seat (21). The plurality of synchronous push rods (23) are movable horizontally and penetrate the plurality of spring grooves (22) and are commonly provided with a pushing ring (24), and a return spring (25) is sleeved on one side of the synchronous push rods (23) placed in the spring groove (22).

5. A concrete manhole cover rapid dehydration forming mold according to claim 4, characterized in that: A double threaded tube (26) is provided at the center of one side of the supporting turntable (18) away from the horizontal beam axis (17); the double threaded tube (26) is provided with a press-fit nut (27) via an external thread sleeve, and one side of the press-fit nut (27) is arranged in contact with the push ring (24).

6. A concrete manhole cover rapid dehydration forming mold according to claim 5, characterized in that: A dehydration cavity (15) is provided in the dehydration cover plate (13); a support filter plate (16) is horizontally arranged on one side of the dehydration cavity (15); one side of the support filter plate (16) is in contact with the dehydration filter cloth (8); a plurality of diversion holes (35) are obliquely provided in the second annular groove (33) and connected to the dehydration cavity (15); the plurality of diversion holes (35) are respectively inclined toward the opposite side of the support filter plate (16); and a drainage port (41) is provided at the center of the upper end of the dehydration cover plate (13).

7. A concrete manhole cover rapid dehydration forming mold according to claim 6, characterized in that: The telescopic push rod (5) is vertically arranged at the center of the bottom installation box (3), the shock absorbing plate (38) is horizontally arranged at the upper end of the telescopic push rod (5), a plurality of shock absorbing support springs (39) are arranged in a circular array at the upper end of the shock absorbing plate (38), the vibration support plate (6) is horizontally arranged at the upper ends of the plurality of shock absorbing support springs (39), the two sides of the vibration support plate (6) are movably sleeved with two flip support frames (4), the upper ends of the two flip support frames (4) are each provided with an arc placement groove (42), the lower ends of the two supporting turntables (18) are respectively rotatably inserted into the two arc placement grooves (42), and the lower ends of the shock absorbing support springs (39) are provided with a vibration module (40).

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