Intermediate jacking station mold for prefabricated reinforced concrete jacking pipe

Abstract

The utility model discloses an intermediate jacking station mold for a prefabricated reinforced concrete jacking pipe, relates to the technical field of concrete jacking pipe processing, and aims to solve the problems that the friction is large and the surface of concrete is easily damaged in the demolding process of the conventional mold. Comprising a base, an inner mold and an outer mold are arranged on the top face of the base from inside to outside, an opening mechanism is arranged on the outer mold, a shrinking mechanism is arranged in the inner mold, and the shrinking mechanism and the opening mechanism are coaxially arranged; through the structural design of the expanding mechanism and the shrinking mechanism, after the jacking pipe is machined, during demolding, the inner mold shrinks inwards, and the outer mold expands outwards, so that the contact with concrete is reduced, the demolding difficulty is reduced, the damage risk is reduced, and the efficiency is improved; and during demolding, friction is reduced, the concrete surface is kept smooth, the finished product precision is improved, the demolding difficulty is reduced, the demolding time is shortened, and the production rhythm is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of concrete jacking pipe processing technology, and in particular to a relay mold for precast reinforced concrete jacking pipe. Background Technology

[0002] Reinforced concrete pipe jacking is a precast concrete component used in underground pipeline construction, and it is widely used in municipal engineering, drainage systems, cable laying and other fields.

[0003] The existing molds used for concrete jacking pipes have high friction during the demolding process, which can easily damage the concrete surface, resulting in an uneven concrete surface, and the demolding process is time-consuming.

[0004] Therefore, this application provides a precast reinforced concrete jacking pipe intermediate mold to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide a relay mold for precast reinforced concrete jacking pipes, which aims to solve the problem that existing molds have high friction and are prone to damaging the concrete surface during demolding.

[0006] To achieve the above objectives, this application provides the following technical solution: a precast reinforced concrete jacking pipe intermediate mold, including a base, an inner mold and an outer mold respectively provided on the top surface of the base from the inside to the outside, and an opening mechanism provided on the outer mold, and a shrinking mechanism provided inside the inner mold, the shrinking mechanism and the opening mechanism being coaxially arranged.

[0007] The inner mold also includes a base plate, a connecting plate, a top plate, and an inner template. The base plate is located in the middle of the base, and four sets of connecting plates in a ring array are provided on the top edge of the base plate. Two sets of adjacent connecting plates are connected by the inner template, and the connecting plates are connected to the inner template by the top plate. The top and bottom surfaces of the inner template are slidably connected to the base plate and the top plate, respectively. The shrinking mechanism is connected to the inner template.

[0008] The outer mold also includes an outer sleeve and an outer template. The outer sleeve is located on the top surface of the base, and the inner wall of the outer sleeve is provided with perforations arranged in a circular array. The outer template is slidably connected to the inner wall of the outer sleeve, and the outer wall of the outer template is provided with a sliding member. The sliding member is adapted to the perforations, and the bottom surface of the sliding member is coaxially arranged with the opening mechanism.

[0009] Preferably, the opening mechanism includes a gathering plate, a slide bar, and a positioning pin. A rotating groove is provided on the top surface of the base, and the gathering plate is rotatably connected in the rotating groove. An arc groove is provided on the gathering plate, and a slide groove communicating with the rotating groove is provided on the top surface of the base. A slide bar is slidably connected in the slide groove, and the slide bar is slidably connected to the arc groove. A positioning pin is provided on the top surface of the outer end of the slide bar, and a positioning groove adapted to the positioning pin is provided on the bottom surface of the outer template. A set of coaxial docking shafts is provided in the middle of the gathering plate.

[0010] Preferably, the retraction mechanism includes an inner support frame, a rotating shaft, a rotating component, a connecting arm, a limiting component, a hinged arm, and a connecting block. The inner support frame is cross-shaped, and the ends of the inner support frame are respectively connected to the inner walls of four sets of connecting plates. A rotating component is provided on the top surface of the inner support frame. The rotating component is quadrilateral, and a connecting arm is hinged at the corner of the rotating component. A hinged arm is hinged at the free end of the connecting arm. In order to limit the running trajectory of the hinged arm, a U-shaped limiting component is provided on the top surface of the inner support frame. The hinged arm is slidably connected in the groove of the limiting component. A connecting block is provided on the inner wall of the inner template. The connecting block is hinged to the free end of the hinged arm. A polygonal block is provided at the bottom of the rotating shaft. The polygonal block is adapted to the slot on the top surface of the docking shaft.

[0011] Preferably, the inner wall of the inner template is provided with an arc-shaped limiting strip, and the two ends of the limiting strip are slidably connected to the inner wall of the connecting plate.

[0012] Preferably, a gear set is provided in the groove at the bottom of the base. The gear set is a bevel gear set, which includes a first gear and a second gear. The first gear is connected to the docking shaft, and the second gear is controlled by a motor mounted on the base. The first gear and the second gear mesh with each other.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] This utility model, through the structural design of the opening and closing mechanisms, allows the inner mold to retract and the outer mold to expand during demolding after the jacking pipe has been processed. This reduces contact with the concrete, lowers the difficulty of demolding, reduces the risk of damage, and thus improves efficiency. Furthermore, it reduces friction during demolding, keeps the concrete surface smooth, improves the precision of the finished product, lowers the difficulty of demolding, shortens the demolding time, and speeds up the production pace. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the inner mold of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal mold structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the base of this utility model;

[0021] Figure 6 This is a schematic diagram of the base structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the opening mechanism of this utility model;

[0023] Figure 8 This is a schematic diagram of the installation state of the opening mechanism of this utility model;

[0024] Figure 9 This is a schematic diagram of the outer casing structure of this utility model;

[0025] Figure 10 This is a schematic diagram of the outer mold structure of this utility model.

[0026] In the diagram: 1. Base; 101. Rotating groove; 102. Sliding groove; 2. Gathering plate; 201. Arc groove; 3. Sliding bar; 4. Positioning pin; 5. Connecting shaft; 6. Gear set; 7. Outer sleeve; 71. Perforation; 8. Outer template; 81. Sliding part; 82. Positioning groove; 9. Base plate; 10. Connecting plate; 11. Top plate; 12. Inner support frame; 13. Inner template; 131. Limiting strip; 14. Rotating shaft; 15. Rotating part; 16. Connecting arm; 17. Limiting part; 18. Hinge arm; 19. Connecting block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Reference Figure 1-10The precast reinforced concrete jacking pipe intermediate mold shown includes a base 1, an inner mold in the middle of the base 1, and an outer mold around the inner mold. In order to facilitate demolding, an opening mechanism for expanding the outer mold and a shrinking mechanism for shrinking the inner mold are provided on the base 1.

[0029] As one embodiment of this example, the inner mold has four sets of symmetrically arranged connecting plates 10 on the top surface of the base plate 9, and the top surfaces of the connecting plates 10 are connected by a top plate 11. In order to facilitate the removal of the inner mold after the model processing is completed, a lifting ring is provided on the top surface of the top plate 11, and a moving space is provided between two adjacent sets of connecting plates 10. The inner template 13 slides between the two sets of connecting plates 10, and the four sets of inner templates 13 are controlled by a shrinkage mechanism.

[0030] As one embodiment of this example, the outer mold: the outer sleeve 7 is placed on the top surface of the base 1, and the inner wall of the outer sleeve 7 is provided with a through hole 71 that communicates with the outside. Two through holes 71 are grouped together, and four groups are provided. A slider 81 is slidably connected in the through hole 71, and the inner end of the slider 81 is connected to the outer template 8. The function of the slider 81 is to stabilize the movement state of the outer template 8. An opening mechanism provided on the base 1 is connected to the outer template 8 to control the movement of the outer template 8.

[0031] In one embodiment of this invention, the retraction mechanism consists of four sets of connecting plates 10 whose inner walls are connected by a set of cross-shaped inner supports 12. A rhomboid rotating member 15 is rotatably connected to the middle of the inner supports 12. A connecting arm 16 is hinged at the corner of the rotating member 15, and a hinge arm 18 is hinged to the free end of the connecting arm 16. To ensure that the connecting arm 16 drives the hinge arm 18 to rotate in a linear motion when the rotating member 15 rotates, a U-shaped... The limiting member 17 and the inner template 13 are slidably connected between the top plate 11 and the bottom plate 9. The inner wall of the inner template 13 is provided with a connecting block 19 that is hinged to the hinge arm 18. Therefore, when the rotating part 15 rotates, the inner template 13 retracts inward. A rotating shaft 14 is rotatably connected in the middle of the inner support frame 12. The rotating shaft 14 is coaxially connected with the rotating part 15, and a polygonal block is provided at the bottom of the rotating shaft 14. The polygonal block is hexagonal and cooperates with the slot on the top surface of the docking shaft 5.

[0032] Two sets of limiting strips 131 are provided on the inner wall of each set of inner templates 13. The limiting strips 131 are used to limit the movement range of the inner templates 13.

[0033] As one embodiment of this invention, the top surface of the base 1 is provided with a rotating groove 101, and four sets of sliding grooves 102 are provided on the inner wall of the rotating groove 101.

[0034] As one embodiment of this invention, the opening mechanism consists of a gathering disk 2 rotatably connected within a rotating groove 101, and the gathering disk 2 having four sets of circularly arranged arc grooves 201. A slide bar 3 is slidably connected within a sliding groove 102. To control the slide bar 3's movement within the sliding groove 102, the inner end of the slide bar 3 is adapted to the arc groove 201. When the gathering disk 2 rotates, the slide bar 3 slides within the sliding groove 102. The positioning pin 4 on the top surface of the slide bar 3 is matched with the positioning groove 82 on the bottom surface of the outer template 8, so that the outer template 8 rotates along with the gathering disk 2. A docking shaft 5 located in the middle of the base 1 is coaxially arranged with the gathering disk 2, and the slot on the top surface of the docking shaft 5 engages with the polygonal block at the bottom of the rotating shaft 14 to achieve coaxial rotation. The docking shaft 5 is driven to rotate by a motor through a gear set 6.

[0035] As one implementation method in this embodiment, gear set 6: both gear one and gear two are bevel gears, and gear one is connected to the docking shaft 5, while gear two is located on the drive shaft of the motor. Gear one and gear two mesh with each other, thereby enabling the motor to drive the docking shaft 5 to rotate.

[0036] The working principle of this practical application is as follows: Concrete is fed between the inner and outer molds, then vibrated to solidify. The motor is then started, driving the first and second gears of gear set 6 to rotate. The first gear drives the coaxial docking shaft 5 to rotate on the base 1. The rotating docking shaft 5 then drives the coaxial gathering plate 2 to rotate. The gathering plate 2 rotates within the rotating groove 101. The sliding strip 3 in the sliding groove 102 engages with the arc groove 201. The rotating gathering plate 2 drives the sliding strip 3 to slide within the sliding groove 102. The sliding strip 3, through its top surface positioning pin 4, engages with the positioning groove 82 at the bottom of the outer template 8, allowing the outer template 8 to slide on the top surface of the base 1, releasing the restriction on the outer wall of the jacking pipe. The sliding component 81 on the outer wall of the outer template 8 slides on the through hole 71 of the outer sleeve 7. The outer sleeve 7 is designed to restrict the outer template 8 so that it can be lifted away using lifting equipment.

[0037] The docking shaft 5 connects with the polygonal block at the bottom of the rotating shaft 14 through the slot on the top surface. When the docking shaft 5 rotates, it drives the rotating shaft 14 to rotate, thereby causing the rotating part 15 to rotate on the top surface of the inner support frame 12. The rotating part 15 rotates with the center of the rotating part 15 through the connecting arm 16 hinged at the corner, which drives the hinge arm 18 hinged with it to slide in the groove of the limiting part 17, thereby pulling the connecting block 19 to slide inward, causing the inner template 13 to shrink inward, reducing the contact area between the inner wall of the top tube and the inner mold, thereby facilitating demolding.

[0038] Limiting strip 131 assists inner template 13 in moving to prevent excessive movement.

[0039] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0040] Components not described in detail in this article are existing technologies.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast reinforced concrete jacking pipe intermediate station mould characterised in that: The base (1) is provided with an inner mold and an outer mold from inside to outside on the top surface, and is provided with an opening mechanism on the outer mold, and a contraction mechanism is arranged coaxially with the opening mechanism in the inner mold; The inner mold further comprises a bottom plate (9), a connecting plate (10), a top plate (11) and an inner mold plate (13). The bottom plate (9) is arranged in the middle of the base (1), and four groups of annular array connecting plates (10) are arranged on the top edge of the bottom plate (9). Two adjacent connecting plates (10) are connected by an inner mold plate (13), and the connecting plate (10) and the inner mold plate (13) are connected by a top plate (11). The top surface and the bottom surface of the inner mold plate (13) are slidably connected with the bottom plate (9) and the top plate (11) respectively. The contraction mechanism is connected with the inner mold plate (13). The outer mold further comprises an outer sleeve (7) and an outer mold plate (8). The outer sleeve (7) is arranged on the top surface of the base (1), and a perforation (71) is arranged on the inner wall of the outer sleeve (7). The perforation (71) is arranged in an annular array. The outer mold plate (8) is slidably connected with the inner wall of the outer sleeve (7). The outer wall of the outer mold plate (8) is provided with a slide (81). The slide (81) is matched with the perforation (71), and the bottom surface of the slide (81) is coaxially arranged with the opening mechanism.

2. A precast reinforced concrete jacking pipe intermediate chamber mold according to claim 1, characterized in that: The opening mechanism comprises a contraction disc (2), a slide (3) and a positioning pin (4). A rotating groove (101) is arranged on the top surface of the base (1). The contraction disc (2) is rotatably connected in the rotating groove (101). An arc groove (201) is arranged on the contraction disc (2). A sliding groove (102) is arranged on the top surface of the base (1) and is connected with the rotating groove (101). The slide (3) is slidably connected with the arc groove (201) in the sliding groove (102). The positioning pin (4) is arranged on the outer end of the slide (3). A positioning groove (82) matched with the positioning pin (4) is arranged on the bottom surface of the outer mold plate (8). A coaxial butt shaft (5) is arranged in the middle of the contraction disc (2).

3. A precast reinforced concrete push pipe joint chamber mould according to claim 2, characterised in that: The contraction mechanism comprises an inner support frame (12) and a rotating shaft (14), a rotating piece (15), a connecting arm (16), a limiting piece (17), a hinged arm (18), and a connecting block (19). The inner support frame (12) is cross-shaped, and the ends of the inner support frame (12) are connected with the inner walls of four sets of connecting plates (10) respectively. The rotating piece (15) is provided on the top surface of the inner support frame (12), and the rotating piece (15) is quadrilateral. The connecting arm (16) is hinged at the corners of the rotating piece (15), and the free end of the connecting arm (16) is hinged with the hinged arm (18). In order to limit the running track of the hinged arm (18), the U-shaped limiting piece (17) is provided on the top surface of the inner support frame (12), the hinged arm (18) is slidingly connected in the groove of the limiting piece (17), and the connecting block (19) is provided on the inner wall of the inner mold plate (13). The connecting block (19) is hinged with the free end of the hinged arm (18), and the bottom of the rotating shaft (14) is provided with a multi-edge block which is matched with the slot on the top surface of the butt joint shaft (5).

4. A precast reinforced concrete push pipe joint chamber mold according to claim 3, characterized in that: An arc-shaped limiting strip (131) is provided on the inner wall of the inner mold plate (13), and the two ends of the limiting strip (131) are slidingly connected with the inner walls of the connecting plates (10).

5. A precast reinforced concrete push pipe joint chamber mold according to claim 3, characterized in that: A gear set (6) is provided in the groove at the bottom of the base (1), the gear set (6) is a conical gear set, the gear set (6) comprises a first gear and a second gear, the first gear is connected with the butt joint shaft (5), the second gear is controlled by a motor installed on the base (1), and the first gear and the second gear are meshed with each other.

Images