Concrete column formwork chamfering strip
By designing chamfered strips for concrete column formwork and using a camshaft to drive the support strips to strike the isolation rubber strip to generate vibration, the problem of insufficient concrete vibration between the reinforcing cage and the formwork was solved, the probability of void formation was reduced, and the forming quality of the concrete column was improved.
Patent Information
- Application Number
- CN202423237726.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, insufficient concrete vibration between the reinforcing cage and the formwork makes it difficult to expel voids, especially at the corners of concrete columns, where voids are severe. Traditional chamfering strips cannot effectively solve this problem.
Design a chamfering strip for concrete column formwork, comprising a strip body, end caps, support strips, tension springs, isolation rubber strips, and a camshaft. The camshaft drives the support strips to strike the isolation rubber strips, generating vibration to ensure sufficient concrete compaction.
It effectively reduces the probability of voids forming at the corners of concrete columns, improves insufficient concrete vibration between the reinforcing cage and the formwork, and enhances the quality of concrete forming.
Smart Images
Figure CN223675819U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building construction, especially a concrete column formwork chamfer strip. BACKGROUND
[0002] At present, in order to guarantee that the steel cage is not loosened due to collision of the vibrating rod, the existing concrete vibrating rod must guarantee the spacing with the steel cage, so that the concrete between the steel cage and the formwork is not vibrated enough, and there are always air bubbles in the dead angle difficult to discharge, forming a cavity, especially at the corner farthest from the steel cage, the cavity phenomenon is particularly serious.
[0003] Although the traditional method of setting the chamfer strip at the corner of the concrete column formwork is beneficial to discharging air bubbles and reducing the probability of cavity formation, it still cannot solve the cavity problem, and also cannot improve the cavity problem of the concrete between the steel cage and the formwork due to insufficient vibration.
[0004] Based on this, the application provides a concrete column formwork chamfer strip that can provide vibration force, which can effectively solve the problem of cavity at the corner of the concrete column, and also can improve the problem of insufficient vibration of the concrete between the steel cage and the formwork due to the transmission effect of vibration. SUMMARY
[0005] The utility model aims at solving the technical problems existing in the prior art. To this end, the utility model provides a concrete column formwork chamfer strip that can provide vibration force, which can provide vibration for the concrete between the formwork and the steel cage, thereby effectively reducing the probability of cavity formation.
[0006] The utility model solves the technical problems by adopting the following technical scheme:
[0007] A concrete column formwork chamfer strip is provided, which comprises a strip-shaped body, an end cover, a support strip, a tension spring, an isolation rubber belt and a camshaft, wherein: the strip-shaped body comprises two side plates perpendicular to each other, the end portions of the two side plates are fixedly connected to the two sides of the isolation rubber belt, so that the strip-shaped body and the isolation rubber belt jointly enclose the outer contour of the chamfer strip; the inner side of the strip-shaped body is further provided with the support strip, one end of the support strip is rotatably arranged on one of the side plates, and the other end is overlapped with the other side plate; one end of the plurality of tension springs is connected to the strip-shaped body, and the other end is connected to the support strip; the two end covers are encapsulated at the two ends of the strip-shaped body, and the end covers are connected to the two ends of the isolation rubber belt; the camshaft is arranged in the strip-shaped body, and both ends thereof are rotatably installed on the two end covers, for supporting the support strip, so that the support strip intermittently pushes the support strip to impact the isolation rubber belt to produce vibration on the concrete.
[0008] In some optional embodiments, the two side plates of the strip-shaped body are both provided with a connecting column on the inner side, and the end cover is fixed on the connecting column by a screw.
[0009] In some optional embodiments, an inner wall of one side plate of the strip-shaped body is provided with an arc-shaped limiting slot, and one end of the supporting strip is provided with an O-shaped column matched with the arc-shaped limiting slot, and the O-shaped column is rotationally connected with the arc-shaped limiting slot.
[0010] In some optional embodiments, a plurality of supporting cam shafts are further arranged in the strip-shaped body, and the supporting cam shafts are arranged in the strip-shaped body.
[0011] In some optional embodiments, a plurality of cams are arranged at equal intervals on the cam shaft, and a plurality of protrusions and recesses are arranged at intervals on the cams, wherein the protrusions are used for pushing the supporting strips to form extrusion on the isolation rubber belt.
[0012] In some optional embodiments, the cam shaft is exposed at the pouring end of the formwork, and the exposed end is provided with a square head or a hexagonal head.
[0013] In some optional embodiments, the exposed end of the cam shaft is further provided with an indicating cam same as the cam, which is used for indicating the position state of the cam in the strip-shaped body.
[0014] In some optional embodiments, one side plate of the strip-shaped body is provided with an extension part, which is used for fixedly mounting on the formwork.
[0015] In some optional embodiments, the strip-shaped body and the supporting strip are made of aluminum alloy.
[0016] Compared with the prior art, the utility model has the beneficial effects that:
[0017] The utility model discloses a strip-shaped body is used for isolating concrete by isolation rubber belt, prevents the concrete from entering the strip-shaped body, can utilize the hand electric drill and the like tool drive cam shaft high -speed rotation, and then drives the supporting strip to hit the isolation rubber belt, makes the concrete of chamfered portion vibrate, can effectively solve the problem that the concrete column corner appears the cavity, and simultaneously, owing to the transmission of vibration, still can improve the concrete vibration of the steel reinforcement cage and the formwork between the problem of deficiency, improves the forming quality of concrete column. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings, wherein:
[0019] Figure 1Is the chamfer strip sectional view provided by the utility model;
[0020] Figure 2 Is the top view of the end cover provided by the utility model;
[0021] Figure 3 Is the installation structure diagram of the camshaft on the end cover provided by the utility model;
[0022] Figure 4 Is the installation structure diagram of the chamfer strip in the formwork provided by the utility model;
[0023] Figure 5 Is the state diagram after the vibration is completed provided by the utility model.
[0024] In the drawings, the component list represented by each sign is as follows:
[0025] 1 - strip body, 1.1 - arc-shaped limiting groove, 1.2 - connecting column, 1.3 - extension, 2 - end cover, 3 - support strip, 3.1 - O-shaped column, 4 - tension spring, 5 - isolation rubber belt, 5.1 - thickened reverse package part, 6 - camshaft, 6.1 - square head or hexagonal head, 6.2 - cam, 6.3 - indicating cam, 7 - support plate, 7.1 - clamping groove. DETAILED DESCRIPTION
[0026] It should be understood that the specific embodiments described herein are merely used to explain the present application, and are not used to limit the present application.
[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0028] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model; the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0029] In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the ordinary skilled person in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0030] Embodiment one
[0031] The embodiment provides a concrete column formwork chamfer strip, as shown in the accompanying drawings, Figure 1 to the accompanying drawings, Figure 3 As shown in the accompanying drawings, it comprises a strip body 1, an end cover 2, a supporting strip 3, a tension spring 4, an isolation rubber belt 5 and a camshaft 6, wherein:
[0032] The strip body 1 comprises two side plates perpendicular to each other, and the ends of the two side plates are fixedly connected with the two sides of the isolation rubber belt 5, so that the strip body 1 and the isolation rubber belt 5 jointly enclose the outer contour of the chamfer strip. Preferably, as shown in the accompanying drawings, Figure 1 The two sides of the isolation rubber belt 5 connected with the strip body 1 are provided with thickened reverse wrapping parts 5.1 wrapping the strip body 1 reversely, and the isolation rubber belt 5 is fixedly connected with the strip body 1 through an adhesive, and can be further fixed through a screw.
[0033] The strip body 1 is further provided with the supporting strip 3 on the inner side of the isolation rubber belt 5, one end of the supporting strip 3 is rotatably arranged on one of the side plates, and the other end is overlapped with the other side plate. The rotatable connecting structure of the supporting strip and the strip body in the embodiment is preferably that: the inner wall of one of the side plates of the strip body 1 is provided with an arc-shaped limiting groove 1.1, one end of the supporting strip 3 is provided with an O-shaped column 3.1 matched with the arc-shaped limiting groove 1.1, and the O-shaped column 3.1 is rotatably connected with the arc-shaped limiting groove 1.1. When assembling, the O-shaped column of the supporting strip is inserted into the arc-shaped limiting groove from one end of the strip body.
[0034] One end of the plurality of said tension spring 4 is connected to the strip body 1, and the other end is connected to the support strip 3, which is used to pull the support strip 3 to one side of the strip body 1.
[0035] Two said end cover 2 is encapsulated in the two ends of the strip body 1, and the end cover 2 is connected with the two ends of the isolation rubber belt 5, which ensures the sealing. The fixed installation mode of the end cover and the strip body of the embodiment is preferably: the two side plates of the strip body 1 are provided with connecting columns 1.2 on the inner side, and the end cover 2 is fixed on the connecting column 1.2 by screws.
[0036] The camshaft 6 is arranged in the strip body 1, and the two ends are respectively rotatably arranged in the two said end cover 2, which is used to support the support strip 3, so that it intermittently pushes the support strip 3 to impact the isolation rubber belt 5 to produce vibration to the concrete. Preferably, the camshaft 6 is exposed to the end cover 2 at the pouring end of the formwork, and the exposed end is provided with a square head or a hexagonal head 6.1, which can be driven by a hand drill and other tools to rotate at high speed, and then drive the support strip to hit the isolation rubber belt, so that the concrete at the chamfered corner is vibrated to vibrate the concrete.
[0037] Preferably, as shown in the accompanying Figure 3 The camshaft 6 of the embodiment is provided with a plurality of cams 6.2 at equal intervals, and the cam 6.2 is provided with a plurality of protrusions and recesses arranged at intervals, wherein the protrusions are used to push the support strip to form extrusion to the isolation rubber belt.
[0038] Further, the exposed end of the camshaft 6 of the embodiment is also provided with the same indicating cam 6.3 as the cam 6.2, which is used to indicate the position state of the cam 6.2 in the strip body 1, so as to facilitate the confirmation of whether the support strip is supported by the protrusions of the camshaft according to the indicating cam, so as to form a better chamfer profile.
[0039] Preferably, the strip body 1 and the support strip 3 of the embodiment are made of aluminum alloy material, which has the advantages of high structural strength and light weight, and can be reused.
[0040] Working principle: assemble the chamfering strip with the formwork, in the initial state, the recesses of the camshaft support the support strip, at this time, there is a gap between the support strip and the isolation rubber belt, which can be referred to the accompanying Figure 4 After the concrete is poured and vibrated, the isolation rubber belt will be slightly deformed under the extrusion action of the concrete, and then the camshaft is driven at high speed by using a hand drill and other electric tools, and under the action of the protrusions of the camshaft and the tension spring, the support strip continuously hits the isolation rubber belt, and then forms vibration to the concrete at the chamfered corner. This operation can effectively vibrate the concrete to expel the bubbles, and after the vibration is completed, the support strip is adjusted by the protrusions of the camshaft according to the position of the indicating cam, and the final effect can be referred to the accompanying Figure 5 .
[0041] Embodiment two
[0042] On the basis of embodiment one, as shown in the accompanying drawings, this embodiment is further provided with a plurality of support plates 7 supporting the cam shaft 6 in the strip-shaped body 1. Preferably, the support plate 7 of this embodiment is provided with an open clamping groove 7.1, and the cam shaft 6 is pressed into the clamping groove through the opening of the clamping groove. This embodiment uses a plurality of support plates to support the cam shaft, which can improve the installation stability of the cam shaft. Figure 1
[0043] Embodiment three
[0044] On the basis of embodiment one or embodiment two, as shown in the accompanying drawings, one of the side plates of the strip-shaped body 1 is provided with an extension 1.3 for fixedly mounting on a formwork. The mounting structure of the strip-shaped body and the formwork is as shown in the accompanying drawings. Figure 1 Figure 4 Figure 5
[0045] The above only describes the embodiments of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields according to the content of the present application, are also included in the patent protection range of the present application.
Claims
1. A concrete column form corner strip, characterized by: The invention relates to a vibrating device for concrete, which comprises a strip-shaped body, end caps, support strips, tension springs, rubber isolation belts and a camshaft. The strip-shaped body comprises two mutually perpendicular side plates, and the ends of the side plates are fixedly connected to the two sides of the rubber isolation belts, so that the strip-shaped body and the rubber isolation belts together form the outer contour of a chamfered strip. The strip-shaped body is provided with support strips on the inner side of the rubber isolation belts, one end of the support strips is rotatably arranged on one of the side plates, and the other end is overlapped with the other side plate. One end of the tension springs is connected to the strip-shaped body, and the other end is connected to the support strips. The two end caps are arranged at the two ends of the strip-shaped body and are connected to the two ends of the rubber isolation belts. The camshaft is arranged in the strip-shaped body, and the two ends of the camshaft are rotatably arranged in the two end caps, for supporting the support strips and intermittently pushing the support strips to impact the rubber isolation belts to generate vibration.
2. The concrete column form taper strip of claim 1, wherein: The two side plates of the strip-shaped body are provided with connecting columns on the inner side.
3. The concrete column form taper strip of claim 1, wherein: The inner wall of one side plate of the strip-shaped body is provided with an arc-shaped limiting groove, one end of the support strip is provided with an O-shaped column matched with the arc-shaped limiting groove, and the O-shaped column is rotatably connected with the arc-shaped limiting groove.
4. The concrete column form taper strip of claim 1, wherein: The strip-shaped body is further provided with support plates for supporting the camshaft, the support plates are provided with open clamping grooves, and the camshaft is pressed into the clamping grooves through the openings of the clamping grooves.
5. The concrete column form taper strip of claim 1, wherein: The camshaft is provided with a plurality of cams at equal intervals, the cams are provided with a plurality of protrusions and recesses arranged at intervals, and the protrusions are used to push the support strips to form extrusion on the rubber isolation belts.
6. The concrete column form taper strip of claim 5, wherein: The camshaft is arranged at the pouring end of the formwork and exposes the end caps, and the exposed end is provided with a square head or a hexagonal head.
7. The concrete column form taper strip of claim 6, wherein: The exposed end of the camshaft is further provided with an indicating cam same as the cam, for indicating the position state of the cam in the strip-shaped body.
8. The concrete column form taper strip of any one of claims 1 to 7, wherein: One of the side plates of the strip-shaped body is provided with an extension for fixedly mounting on the formwork.
9. The concrete column form taper strip of claim 8, wherein: The strip-shaped body and the support strips are made of aluminum alloy.