CN111844381B

CN111844381B - Reinforced structure for simple concrete construction formwork

Info

Publication number: CN111844381B
Application number: CN202010708239.XA
Authority: CN
Inventors: 张国栋; 贾德岭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-07-06
Anticipated expiration: 2040-07-22
Also published as: CN111844381A

Abstract

The invention provides a simple reinforced structure for a concrete construction template, wherein a driving part sequentially comprises a driving shaft, a friction sleeve, a shaft sleeve and a threaded disc from top to bottom, the driving shaft sequentially comprises a driving shaft section, a transition shaft section and a connecting shaft section which are coaxially and integrally connected from top to bottom, the transition shaft section extends into the shaft sleeve and is in rotating fit with the shaft sleeve, and the shaft sleeve is fixedly connected with a base ferrule into a whole through a connecting bridge; the connecting shaft section is coaxially and fixedly connected to the upper surface of the threaded disc, and the lower surface of the threaded disc is in smooth contact with a supporting ball erected in the center of the base ring; one section of the outer grapple is fixedly connected to the outer wall of the base ferrule, and the other section of the outer grapple is tightly attached to an outer arc-shaped template of the concrete mold cavity in a manner of crossing the concrete mold cavity and vertically downwards; the two ends of the inner ejector rod are both in a ball head shape, one end of the inner ejector rod is in threaded connection with the threaded disc, and the other end of the inner ejector rod is in smooth contact with the inner arc-shaped formwork of the concrete mold cavity. The reinforcing structure provided by the invention can effectively reinforce the template of the arc-shaped prefabricated member.

Description

Reinforced structure for simple concrete construction formwork

Technical Field

The invention relates to a formwork reinforcing technology for concrete construction, in particular to a simple reinforcing structure for a concrete construction formwork.

Background

In concrete pouring, a concrete prefabricated part is usually required to be enclosed into a shape of a concrete prefabricated part by using templates to form a concrete cavity, and then concrete pouring is carried out, in the actual engineering, one concrete prefabricated part is in an arc shape and mainly used for assembling and forming a green belt in a petal shape, therefore, a plurality of concrete prefabricated parts are required to be poured at one time, the prefabricated parts are different from common cross beams, are in an arc shape and are poured in batches, after the existing inner arc-shaped templates and outer arc-shaped templates are directly and fixedly connected into a whole through end templates, the templates are easy to loosen or scatter due to expansion force when pouring towards the cavity, so that the concrete prefabricated parts are deformed or even directly collapsed, particularly when the concrete is oscillated and evenly poured after the concrete is poured, the templates are easy to loose and separate, and the supporting and fixing of the cavity templates at present usually directly adopts temporary battens or even bricks and the like to randomly support the templates from the outer side of the cavity inwards, on the one hand, the compressing supporting force born by each mould section is uneven, the fixing effect is not good, on the other hand, the supporting and fixing construction for the template is complicated and not standard, each supporting piece on the site is messy, inconvenience is caused to the site construction to a certain extent, particularly, the casting molding is carried out on large batches of prefabricated pieces, scattered template supporting parts and stub bars are more messy, and the management and the use are difficult.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the reinforced structure for the concrete construction template is simplified, and the problems that in the prior art, the template of an arc-shaped concrete prefabricated part is easy to loosen and inconvenient to construct and manage are solved.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a simple reinforced structure for a concrete construction template, which comprises a driving part, a base ring, an outer grapple and an inner ejector rod, wherein the driving part is coaxially arranged in the base ring;

the driving part sequentially comprises a driving shaft, a friction sleeve, a shaft sleeve and a threaded disc from top to bottom, the driving shaft sequentially comprises a driving shaft section, a transition shaft section and a connecting shaft section which are coaxially and integrally connected from top to bottom, a plurality of retractable jacking springs are arranged in the driving shaft section along the radial direction, all the jacking springs are in a circular array by taking the circle center of the driving shaft section as the center, one end of each jacking spring is fixed in the driving shaft section, the other end of each jacking spring is connected with a friction tile, one side of the friction tile is positioned in the driving shaft section, the other side of the friction tile is positioned in an annular groove which is arranged on the inner wall of the friction sleeve and sleeved outside the driving shaft section, and the friction tile is extruded and in frictional contact with the groove bottom of the annular groove under the action of the pushing spring, so that the friction sleeve can synchronously rotate with the driving shaft section together with the preset torque when the driving shaft section rotates, and a cantilever fixedly connected to the outer wall of the friction sleeve can be tightly attached to an end template at one end of the concrete cavity; the transition shaft section extends into the shaft sleeve and is in running fit with the shaft sleeve, and the shaft sleeve is fixedly connected with the base ferrule into a whole through a connecting bridge; the connecting shaft section is coaxially and fixedly connected to the upper surface of the threaded disc, and the lower surface of the threaded disc is in smooth contact with a supporting ball erected in the center of the base ring;

the outer grapple is of a gamma structure, one section of the outer grapple is fixedly connected to the outer wall of the base ferrule, and the other section of the outer grapple crosses over the concrete mold cavity and then is vertically and downwards tightly attached to an outer arc-shaped template of the concrete mold cavity; the inner ejector rod penetrates through the base ferrule in a sliding manner, one section of the inner ejector rod is provided with threads and is matched with the plane threads on the threaded disc, and the ball-head-shaped end part of the other section of the inner ejector rod is in smooth contact with the inner arc-shaped template of the concrete mold cavity; all the inner ejector rods and all the outer grapples are arranged along the radial direction of the base ferrule and are respectively in a circular array in a sector area where the concrete mold cavity is located by taking the circle center of the base ferrule as the center, so that all the inner ejector rods simultaneously extend towards the inner arc-shaped template and tightly push the inner arc-shaped template when the threaded disc rotates.

Compared with the prior art, the invention has the following beneficial effects: the inner ejector rod and the cantilever are driven by the driving shaft to be respectively compressed and fixed in the radial direction and the circumferential direction of the template, so that the concrete template of the whole concrete mold cavity is skillfully fixed, the concrete template is firmly fixed, and the conditions of frame scattering and excessive deformation of the mold cavity are avoided. The invention adopts the overload type slipping fit of the pushing spring between the driving shaft section and the friction sleeve, which can lead the inner ejector rod and the cantilever to be in linkage control without interfering the feeding motion of the inner ejector rod when the thread disc continues rotating after the cantilever is tightly pressed in place, and if a pushing spring is further sleeved at one end of the inner ejector rod facing the inner arc-shaped template, the inner ejector rod pushes the inner arc-shaped plate tightly through the pushing spring, the inner ejector rod and the cantilever cannot move continuously in the pushing direction after one of the inner ejector rod and the cantilever is tightly pressed in place in linkage control, thus realizing linkage pressing fixation without mutual interference. Therefore, the invention realizes the bidirectional linkage fixing control of the template by one screw disk with the processed plane thread, has very simple structure, is easy to maintain and popularize, is especially suitable for the batch production of large arc concrete prefabricated parts, can provide enough driving force and telescopic stroke by the plane thread, and is efficient and labor-saving.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a partial front view of the present invention;

FIG. 2 is a partial top view of the present invention;

fig. 3 is a partial structural schematic diagram of one of the outer grapples pressing the outer arc-shaped formworks.

The device comprises a base ferrule 1, an outer grab hook 2, an inner ejector rod 3, a driving shaft section 4, a friction sleeve 5, a friction tile 6, a pushing spring 7, a transition shaft section 8, a shaft sleeve 9, a connecting bridge 10, a connecting shaft section 11, a threaded disc 12, a supporting ball 13, a cantilever 14, an outer arc template 15, an inner arc template 16, a pedal plate 17, an end fixing plate 18, an end template 19, a pushing spring 20, a core shaft 21, a roller 22 and an auxiliary supporting plate 23.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:

as shown in fig. 1 to 2, the present embodiment describes a simplified reinforcing structure for a concrete construction form, which includes a driving part, a base collar 1, and an outer grapple 2 and an inner pin 3, the driving part being coaxially disposed within the base collar 1. This driver part includes drive shaft, friction cover 5, axle sleeve 9, threaded disc 12 from top to bottom in proper order, and the drive shaft includes coaxial integrative continuous initiative shaft part 4, transition shaft part 8, connecting shaft part 11 from top to bottom in proper order, the inside of initiative shaft part 4 is equipped with a plurality of top pushes away spring 7 that can stretch out and draw back along its radially, and all top pushes away spring 7 and uses the centre of a circle of initiative shaft part 4 to be circular array as the center, pushes away in spring 7 one end is fixed in initiative shaft part 4, and the other end is connected with friction tile 6. Friction tile 6 is the tile form, its radian with the tank bottom of ring channel is unanimous, 6 one side of friction tile is located initiative shaft section 4, and the opposite side is located to overlap and establishes outside initiative shaft section 4 in the ring channel that 5 inner walls of friction cover were seted up, and friction tile 6 be in under the top push spring 7 effect with the tank bottom extrusion of ring channel, frictional contact can adopt some current wear-resisting materials to make during the concrete manufacturing to when making to rotate initiative shaft section 4 friction cover 5 can rotate with initiative shaft section 4 in step together in the predetermined moment of torsion, just a cantilever 14 of rigid coupling on the 5 outer walls of friction cover can hug closely on the end template 19 of concrete mold cavity wherein one end, and this cantilever 14 is the L type roughly, and its free end can hug closely on the end template 19 of concrete mold cavity wherein one end to compress tightly it. The transition shaft section 8 extends into the shaft sleeve 9 and is in running fit with the shaft sleeve 9, and the shaft sleeve 9 is fixedly connected with the base ferrule 1 into a whole through a connecting bridge 10. The connecting shaft segment 11 in this embodiment is coaxially fixed to the upper surface of the threaded disc 12, and the lower surface of the threaded disc 12 is in smooth contact with a supporting ball 13 mounted at the center of the base ring 1 in a high position, so as to provide a certain auxiliary supporting function for the threaded disc 12 and ensure the threaded disc 12 to rotate stably and reliably.

Meanwhile, the outer grapple 2 in the invention is of a gamma structure, one section of the outer grapple 2 is fixedly connected with the outer wall of the base ferrule 1, and the other section of the outer grapple is tightly attached to an outer arc template 15 of the concrete mold cavity vertically downwards after crossing the concrete mold cavity; the inner ejector rod 3 penetrates through the base ferrule 1 in a sliding manner, in order to facilitate the stable sliding of the inner ejector rod 3, a reinforcing rib block can be additionally arranged at the position of the base ferrule 1, through which the inner ejector rod 3 extends in a sliding manner, so that the inner ejector rod 3 can penetrate, the purpose of locally thickening the base ferrule 1 in a phase-changing manner is achieved, a thread is arranged on one section of the inner ejector rod 3 and is matched with a plane thread on the threaded disc 12, and the ball-head-shaped end part of the other section is in smooth contact with the inner arc-shaped template 16 of the concrete mold cavity; specifically, the inner top rod 3 may be made into a rectangular rod-shaped structure, and a corresponding plane thread is formed on one surface of the inner top rod, which is matched with the threaded disc 12. All the inner ejector rods 3 and all the outer grapples 2 are arranged along the radial direction of the base ferrule 1 and are respectively in a circular array in a sector area where the concrete mold cavity is located by taking the circle center of the base ferrule 1 as the center, so that all the inner ejector rods 3 simultaneously extend towards the inner arc-shaped formwork 16 and tightly push the inner arc-shaped formwork when the threaded disc 12 rotates, the formwork is fixed in a clamping mode, the looseness of the formwork is prevented, and the quality of concrete pouring and molding is guaranteed.

When the invention is used, the base ferrule 1 is roughly placed at the center of an arc template enclosing a concrete mold cavity, the other section of all the outer grapples 2 can be hooked on the surface of the outer arc template 15 or opposite to the outer arc template as far as possible, the base ferrule 1 is gradually moved, when the other section of all the outer grapples 2 is attached to the surface of the outer arc template 15, the base ferrule 1 is installed in place, at the moment, the driving shaft section 4 is rotated, the threaded disc 12 and the threaded sections of all the inner mandrils 3 are driven to move through the rotating fit between the transition shaft section 8 and the shaft sleeve 9, all the inner mandrils 3 are synchronously ejected towards the inner arc template 16 along with the further rotation of the driving shaft section 4, and are finally in extrusion contact with the inner arc template 16, so far as the inner mandrils 3 and the outer grapples 2 form a clamping action to clamp the inner arc template 16 and the outer arc template 15 together, the manufactured arc-shaped die cavity can be more stable, the corresponding die plate can not be loosened to cause die cavity scattering, the die plate can be well fixed, and even if the original prefabricated die cavity die plate is loosened, the die can not be scattered due to the die cavity die-fixing device. Meanwhile, because the elastic force of the pushing spring 7 is existed, the friction sleeve 5 and the driving shaft section 4 are connected into a whole, when the driving shaft section 4 starts to rotate, the two are synchronously rotated to drive the cantilever 14 to approach towards the end plates of the moulds and to be in extrusion contact, the end mould plate 19 is fixed, and because the pressing force required by the end mould plate 19 is far less than the pressing force required by the two arc mould plates, when the driving shaft section 4 is further rotated, after the cantilever 14 has given enough pressing and fixing force to the end mould plate 19, the friction force between the friction sleeve 5 and the driving shaft section 4 caused by the elastic force of the spring is overcome by the torque generated by further rotation, so that the friction sleeve 5 and the driving shaft section 4 are relatively rotated, and the slippage occurs, at the moment, the driving shaft section 4 continues to rotate, and when the cantilever 14 reaches the limit position, the friction sleeve 5 and the driving shaft section 4 correspondingly slip occurs, in this way, the inner mandril 3 and the cantilever 14 are controlled in a linkage manner through the driving shaft, and the template is compressed and fixed in the radial direction and the circumferential direction in a coordinated and efficient manner. Particularly preferably, when the driving shaft section 4 reaches the position for jacking the inner mandril 3, the cantilever 14 and the driving shaft section 4 rotate relatively and the rotation amount is not more than 180 degrees. Of course, when the invention is used, if the conditions allow, the center of the arc concrete mold cavity can be directly drawn, and the base ferrule 1 is directly placed on the arc concrete mold cavity to fix and adjust the template. In order to facilitate the rotation of the driving shaft, the base ferrule 1 can be made heavier, or even fixed on the ground when necessary, so as to form a permanent and stable installation and use, and whether a universal wheel capable of self-locking is installed at the bottom end of the base ferrule 1 or not can be selected according to requirements so as to facilitate the mobile installation.

In specific implementation, the bottom end edge of one side of the base ferrule 1 opposite to the concrete mold cavity is connected with a fan-shaped pedal plate 17 for people to stand, so that people can stand on the side to operate the base ferrule, and the self weight of people plays a great role in stabilizing the base ferrule 1 during rotation of the driving shaft, thereby achieving two purposes at one stroke. An arc-shaped auxiliary support plate 23 fixedly connected with the base ring 1 is coaxially arranged on the outer side of the base ring, one section of the outer grapple 2 is lapped on the upper end surface of the auxiliary support plate 23, the inner mandril 3 penetrates through the auxiliary support plate 23 in a sliding fit mode and then extends to the inner arc-shaped template 16, and the auxiliary support plate 23 can enable the outer grapple 2 and the inner mandril 3 to move more stably.

Further, the present embodiment further includes an end fixing plate 18, as shown in fig. 1, a side surface of the end fixing plate 18 is convexly provided with a conical boss, and the boss is slidably inserted into a conical hole formed by splicing the inner arc formwork 16 and the outer arc formwork 15 at the end formwork 19 and contacts with the end formwork 19. When the cantilever 14 is rotated, the free end of the cantilever 14 pushes the end fixing plate 18, and due to the guiding effect of the conical boss, force can be transferred more accurately and stably, so that the end template 19 is pressed tightly.

As a specific implementation detail, as shown in fig. 2, a tightening spring 20 is sleeved at one end of the inner top rod 3 facing the inner arc-shaped formwork 16, and the inner top rod 3 tightens the inner arc-shaped formwork through the tightening spring 20. The jacking spring 20 is adopted for jacking, because if the movement of a certain inner ejector rod 3 is not synchronous, for example, the extension amount is longer than the extension amount of the other inner ejector rods, the certain inner ejector rod 3 can be jacked against the inner arc-shaped template 16 for a long time, the other inner ejector rods cannot move at the moment, so that the fixing effect is unbalanced, and the jacking force of the other inner ejector rods 3 can not be influenced or reduced under the condition that the certain inner ejector rod 3 is not telescopic synchronously by adopting the jacking spring 20 for force transmission, which is particularly effective when the fault happens after the multi-time use of the invention. In order to improve the contact stability and reduce the friction and wear, one end of the puller spring 20 is coaxially fixed on the inner mandril 3, and the other end is internally embedded with a steel ball used for contacting with the inner arc-shaped plate. In addition, a steering wheel-shaped operating panel is fixedly mounted on the top end of the driving shaft section 4 so as to easily rotate the driving shaft section 4.

Specifically, the present embodiment further includes a stepping motor (not shown in the figure) and a gear box (not shown in the figure), wherein the stepping motor drives the gear box to drive the driving shaft section 4 to rotate, so as to set a predetermined rotation time or a predetermined rotation angle of the driving shaft section 4, thereby implementing a fully automatic control, and the present embodiment is particularly suitable for a large batch of concrete prefabricated members.

In order to adjust the installation position of the present invention, and to adjust the position of the base ferrule 1 to the center of the concrete mold cavity more conveniently and quickly, as shown in fig. 3, another section of the outer grapple 2 of the present embodiment includes a roller 22 and a mandrel 21, the mandrel 21 is vertically and fixedly connected with one section of the outer grapple 2, the roller 22 is sleeved on the mandrel 21 and is in rotating fit with the mandrel 21, and the outer surface of the roller 22 is a smooth surface in smooth contact with the outer arc mold plate 15, so that the outer grapple 2 is in rolling fit with the outer arc mold plate 15, and the movement adjustment of the outer grapple 2 is facilitated.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a brief formula reinforced structure for concrete construction template which characterized in that: the device comprises a driving part, a base ring, an outer grapple and an inner ejector rod, wherein the driving part is coaxially arranged in the base ring;

2. The simplified concrete construction form reinforcing structure of claim 1, wherein: the bottom end edge of one side of the base ferrule opposite to the concrete mould cavity is connected with a fan-shaped pedal plate for people to stand.

3. The simplified concrete construction form reinforcing structure of claim 1, wherein: an arc-shaped auxiliary supporting plate fixedly connected with the base ferrule is coaxially arranged on the outer side of the base ferrule, one section of the outer grapple is lapped on the upper end face of the auxiliary supporting plate, and the inner ejector rod penetrates through the auxiliary supporting plate in a sliding fit mode and then extends to the inner arc-shaped template.

4. The simplified concrete construction form reinforcing structure of claim 1, wherein: the end part fixing plate is characterized by further comprising an end part fixing plate, wherein a conical boss is convexly arranged on one side surface of the end part fixing plate, and the boss can be slidably inserted into a conical hole formed by splicing the inner arc-shaped template and the outer arc-shaped template at the end template and is in contact with the end template.

5. The simplified concrete construction form reinforcing structure of claim 1, wherein: and one end of the inner ejector rod facing the inner arc-shaped template is sleeved with a jacking spring, and the inner ejector rod jacks the inner arc-shaped plate through the jacking spring.

6. The simplified concrete construction form reinforcing structure of claim 5, wherein: one end of the jacking spring is coaxially fixedly connected to the inner ejector rod, and a steel ball used for being in contact with the inner arc-shaped plate is embedded in the other end of the jacking spring.

7. The simplified concrete construction form reinforcing structure of claim 1, wherein: and the top end of the driving shaft section is fixedly provided with a steering wheel-shaped operating panel.

8. The simplified concrete construction form reinforcing structure of claim 1, wherein: the friction tile is tile-shaped, and the radian of the tile is consistent with that of the groove bottom of the annular groove.

9. The simplified concrete construction form reinforcing structure of claim 1, wherein: the driving shaft section is driven to rotate by the stepping motor and the gear box.

10. The simplified concrete construction form reinforcing structure of claim 1, wherein: the other section of the outer grapple comprises a roller and a mandrel, the mandrel is vertically and fixedly connected with one section of the outer grapple, the roller is sleeved on the mandrel and is in running fit with the mandrel, and the outer surface of the roller is a smooth surface which is in smooth contact with the outer arc-shaped template.