CN216810635U - Steel bar protection layer positioning device - Google Patents

Abstract

The utility model belongs to the technical field of building construction, and discloses a reinforcing steel bar protective layer positioning device which is used for solving the problems of low precision and high installation difficulty in the prior art of adopting reinforcing steel bars. The method can realize the accurate control of the thickness of the protective layer, can not damage the template, avoids the problem of the prior art that the positioning steel bar is exposed due to the damage of the template, improves the quality of concrete pouring, and reduces the difficulty of the control of the thickness of the protective layer.

Description

Steel bar protection layer positioning device

Technical Field

The application belongs to the technical field of building construction, concretely relates to protective steel bar layer positioner.

Background

In the construction process of a building, concrete needs to be poured into the steel reinforcement framework (such as the steel reinforcement framework in a column, a wall, a beam and a pier), so that the steel reinforcement framework and the concrete form a whole. In order to protect the reinforcing steel bars and prevent (or reduce) the corrosion of the reinforcing steel bars, the thickness between the outermost side of the reinforcing steel bars and the outer surface of the concrete has certain requirements, namely the thickness of the protective layer of the reinforcing steel bars has requirements and specifications. The minimum thickness (mm) of the concrete protective layer is shown in the following table:

environmental classes	Plate, wall and shell	Beam, column, or rod
			A	15	20
Two a	20	25
			Two b	25	35
Three a	30	40
			III b	40	50

When the strength of the concrete is not more than C25, the thickness value of the protective layer in the table should be increased by 5 mm; the reinforced concrete foundation is preferably provided with a concrete cushion layer, and the thickness of the concrete protection layer of the steel bars in the foundation is calculated from the top surface of the cushion layer and is not less than 40 mm. Thus, the thickness of the protective layer will be understood and appreciated by those skilled in the art.

As shown in fig. 1, the structural schematic diagram of the steel reinforcement framework and the concrete 02 is shown, wherein a main reinforcement 01 is vertically disposed, a horizontal reinforcement 04 is connected to the periphery of the main reinforcement 01, a vertical formwork 03 surrounds the periphery of the steel reinforcement framework, a distance is provided between an inner surface of the vertical formwork 03 and the steel reinforcement framework, and a distance between an outer surface of the horizontal reinforcement 04 (or referred to as a stirrup) and an outer surface of the concrete 02 (or an inner surface of the formwork 03) is the thickness (L) of the steel reinforcement protection layer.

In the construction process of the building template, a construction unit positions and pays off the plane positions (namely the side lines of the template) of the rigid members such as columns, walls and the like according to a design drawing, and then the template is erected by taking the positioning lines as the basis, so that the thickness of a steel bar protective layer is ensured to meet the standard requirement, and the purpose of corrosion prevention of the steel bars is achieved.

However, when the steel bar framework (including the main bar 01 and the horizontal bar 04) is erected or bound, the main bar 01 is long and the main bar is inevitably spliced (for example, lapped and welded); in addition, the steel reinforcement framework can be dragged (for example, when the steel reinforcement framework of the beam is erected, the main reinforcement of the beam is inserted into the steel reinforcement framework of the column, and when the main reinforcement of the beam is dragged, the main reinforcement of the beam can also disturb the steel reinforcement framework of the column), so that the steel reinforcement framework is inclined or bent; in addition, when the horizontal rib 04 is bent, the horizontal rib is not rectangular (namely, the included angle of the corner of the horizontal rib is not 90 degrees, and the horizontal rib is inclined and is not absolutely horizontal). In conclusion, under the above field construction conditions, the steel reinforcement framework can be inclined, that is, the whole steel reinforcement framework is not perpendicular to the horizontal plane.

The template can ensure template and horizontal plane mutually perpendicular (or the template erects and to satisfy the design specification requirement) basically at the erection in-process, but the straightness that hangs down of framework of steel reinforcement can not guarantee to lead to framework of steel reinforcement to have the problem of slope or crooked in the template of cladding, make the interval between framework of steel reinforcement and the template and construct the steel reinforcement protective layer thickness that the specification required and not match. As shown in fig. 2, the reinforcement cage is inclined in the covered form, so that the thickness L1 of the protective layer on one side of the reinforcement cage is less than the specification requirement, and the thickness L2 of the protective layer on the other side of the reinforcement cage is greater than the specification requirement.

In order to adjust the position of the steel bar framework, field construction personnel generally use a steel bar prying (or prying) mode or a steel bar inserting mode to adjust, on one hand, the space between the steel bar framework and the template cannot be accurately adjusted, the labor intensity is high, the efficiency is low, the thickness of a protective layer still cannot meet the requirement of construction specifications, meanwhile, the template is easily damaged when the steel bar is pried and inserted, and when the template is removed, the inserted positioning steel bar can expose the outer surface of concrete, so that the pouring quality is poor.

Disclosure of Invention

Aiming at the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a protective steel bar layer positioner, a serial communication port, including the device body, have on the device body and be used for the centre gripping or support the centre gripping groove on the main muscle of holding on steel skeleton, have two locating surfaces that are used for carrying out the contact with the inner wall of two adjacent templates on the device body, have the contained angle between two locating surfaces, the device body utilizes the interval between centre gripping groove and the locating surface to control the interval between steel skeleton and the template, the one end of orientation template has the contact surface that is used for with the tip contact of template on the device body, the contact surface is located the top of locating surface.

In some embodiments, the clamping groove can clamp or abut against at least one diameter main rib of the steel reinforcement framework.

In some embodiments, the opening width of the clamping groove becomes gradually larger along the direction from the position surface to the position surface, or the clamping groove is step-shaped.

In some embodiments, the device body has a wedge portion thereon for facilitating insertion between the steel reinforcement cage and the formwork, and the wedge portion has a width gradually decreasing along an insertion direction between the steel reinforcement cage and the formwork.

In some embodiments, the angle between the two locating surfaces is greater than 0 ° and equal to or less than 90 °.

In some embodiments, the device body includes two mutually perpendicular mounting panels, and the one end that two mounting panels interconnect all is provided with supports and holds the board, and two support and hold the board and form the centre gripping groove that is used for mutually holding or support with the main muscle of framework of steel reinforcement, the one end that supports the board is kept away from to the mounting panel all is provided with the locating plate, the locating plate is extended to the one end of keeping away from on the mounting panel to holding the board, the side of keeping away from on the locating plate supports the board for being used for carrying out the contact locating surface with the inner wall of template, the lower terminal surface that extends the locating plate on the mounting panel is for being used for carrying out the contact surface that contacts with the tip of template.

In some embodiments, the device body includes two mutually perpendicular's mounting panel, and the one end of two mounting panel interconnect is formed with the centre gripping groove that is used for with the mutual centre gripping of skeleton of steel reinforcement or support, the one end that the centre gripping groove was kept away from to the mounting panel all is provided with the locating plate, the locating plate is extended to the one end of keeping away from the centre gripping groove on the mounting panel, the side of keeping away from the centre gripping groove on the locating plate is for being used for carrying out the contact surface with the inner wall of template, the lower terminal surface that extends the locating plate on the mounting panel is for being used for carrying out the contact surface that contacts with the tip of template.

In some embodiments, the mounting plate is further provided with a baffle plate for abutting against the main rib and/or the horizontal rib of the steel reinforcement framework, and the baffle plate and the abutting plate are respectively located on the upper side and the lower side of the mounting plate.

In some embodiments, the mounting plate is further provided with a baffle plate for abutting against the main rib and/or the horizontal rib of the steel reinforcement framework.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a template protective layer positioner for building is in the use, utilize the centre gripping groove on the device body to support to hold and/or the centre gripping is on steel reinforcement frame's main muscle, then utilize the centre gripping groove to come the distance between control steel reinforcement frame and the template apart from the distance between the locating surface, because steel reinforcement frame template all around is based on measuring the position of unwrapping wire and erects, consequently after the position of template is confirmed, can ensure the distance between the peripheral distance template internal surface of steel reinforcement frame through the distance between centre gripping groove and the locating surface, thereby ensure that the interval (the thickness of protective layer) between the peripheral distance template of steel reinforcement frame can satisfy the building construction code requirement. Compared with the prior art that the reinforcing steel bars are pried or inserted, the method has the advantages that the thickness of the protective layer can be accurately controlled, the template cannot be damaged, the problem that the positioning reinforcing steel bars are exposed due to damage of the template in the prior art is solved, and the concrete pouring quality is improved.

Compared with the mode of inserting the reinforcing steel bar between the reinforcing steel bar framework and the template in the prior art, the reinforcing steel bar template has the advantages of being convenient to insert and low in labor intensity, and meanwhile, the cost can be reduced.

The utility model provides a reinforcing bar protective layer positioner for building in the in-service use process: after the steel reinforcement framework and the template are erected, the steel reinforcement protective layer positioning device is inserted into the end part of the template, so that the erected template is used for positioning the steel reinforcement framework; and rely on the centre gripping groove to realize being connected with the framework of steel reinforcement owner muscle, rely on the locating surface that has the contained angle to fix a position the framework of steel reinforcement's that two adjacent templates (for example template external corner or internal corner department) correspond corner, and realize the contact with the tip of template through the contact site, thereby arrange the device body in between framework of steel reinforcement and the template, have the characteristics that set up conveniently and the installation is firm. Simultaneously, two adjacent surfaces of the steel reinforcement framework can be controlled at one time, so that the thickness of the protective layers of the two surfaces is controlled, and the construction efficiency can be further improved.

Drawings

Fig. 1 is a schematic view of a protective layer of a steel reinforcement cage for a building, which is a transverse sectional view of the steel reinforcement cage;

fig. 2 is a schematic view of a state when the steel reinforcement framework and the peripheral formwork are shifted, that is, the steel reinforcement framework is not located at the center of the peripheral formwork due to the inclination of the steel reinforcement framework, so that the thickness of the protective layer does not meet the requirements of the construction specifications;

FIG. 3 is a schematic structural view of an embodiment of the clamping groove of the present application, wherein FIG. 3 includes four different embodiments 3a, 3b, 3c and 3 d;

FIG. 4 is a schematic structural view of another embodiment of the clamping groove of the present application, wherein FIG. 4 includes two different embodiments 4a and 4 b;

FIG. 5 is a schematic structural view of an embodiment of the present application, in which two baffles form a clamping slot, and FIG. 5 includes two different embodiments 5a and 5 b;

FIG. 6 is a schematic structural diagram of an embodiment of the present application, in which a baffle is disposed on a mounting plate;

FIG. 7 is a schematic structural view of an embodiment of the present application, in which a clamping slot is formed on two mounting plates;

FIG. 8 is a schematic front view diagram of an embodiment of the present application;

the labels in the figure are: 01. main reinforcement, 02, concrete, 03, a template, 04 and horizontal reinforcement;

1. the clamping groove, 2, the device body, 3, the wedge portion, 4, the locating surface, 5, the mounting panel, 6, the locating plate, 7, support the board, 8, the baffle, 9, the contact surface.

Detailed Description

The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, which is a schematic structural diagram of a protective layer of a steel reinforcement framework of a building (e.g., a column, a wall, a beam), a distance between an inner surface of a formwork 03 (or an outer surface of concrete 02) and an outermost side of a horizontal rib 04 of the steel reinforcement framework is a thickness (L) of the protective layer of the steel reinforcement. With reference to fig. 2, because the steel reinforcement framework inevitably can appear slope or crooked condition in the process of setting up, even the interval (the thickness of protective layer) between the bottom of steel reinforcement framework and the template 03 accords with the standard requirement, but because the crooked and the precision of horizontal muscle 04 of main muscle 01 can not guarantee, lead to the condition that the slope can appear in the upper end of steel reinforcement framework to make the interval (the thickness of protective layer) between steel reinforcement framework and the template 03 can not satisfy the construction standard requirement.

Based on above-mentioned problem, the application provides a reinforcing bar protective layer positioner for building, including device body 2, have on the device body 2 and be used for the centre gripping or support and hold clamping groove 1 on main muscle 01 on steel bar skeleton, have two locating surfaces 4 that are used for carrying out the contact with the inner wall of two adjacent templates 03 on the device body 2, have the angle of clamp between two locating surfaces 4, the device body utilizes the interval between clamping groove and the locating surface to control the interval between steel bar skeleton and the template, the one end towards template 03 has the contact surface 9 that is used for the tip contact with template 03 on the device body 2, contact surface 9 is located the top of locating surface 4. The utility model provides a reinforcing bar protective layer positioner for building in the in-service use process: after the steel reinforcement framework and the template are erected, the steel reinforcement protective layer positioning device is inserted into the end part of the template, so that the erected template is used for positioning the steel reinforcement framework; and rely on the centre gripping groove to realize being connected with the framework of steel reinforcement owner muscle, rely on the locating surface that has the contained angle to fix a position the framework of steel reinforcement that two adjacent templates (for example template external corner or internal corner department) correspond to the contact of the tip with the template is realized through the contact site, thereby arrange the device body in between framework of steel reinforcement and the template and control the distance between framework of steel reinforcement and the template (the thickness of control protective layer promptly).

Wherein the interval between centre gripping groove and the locating surface is the thickness of steel bar protective layer promptly, sets for earlier the distance between centre gripping groove and the locating surface, can utilize the steel bar protective layer positioner of this application to control the interval between framework of steel reinforcement and the template to ensure behind the concreting, the thickness of protective layer can satisfy the construction specification requirement.

The inner wall of the template is the inner side surface of the template facing the steel bar framework.

The utility model provides a template protective layer positioner for building is in the use, utilize the centre gripping groove on the device body to support to hold and/or the centre gripping is on steel reinforcement frame's main muscle, then utilize the centre gripping groove to come the distance between control steel reinforcement frame and the template apart from the distance between the locating surface, because steel reinforcement frame template all around is based on measuring the position of unwrapping wire and erects, consequently after the position of template is confirmed, can ensure the distance between the peripheral distance template internal surface of steel reinforcement frame through the distance between centre gripping groove and the locating surface, thereby ensure that the interval (the thickness of protective layer) between the peripheral distance template of steel reinforcement frame can satisfy the building construction code requirement. Compared with the prior art that the reinforcing steel bars are pried or inserted, the method has the advantages that the thickness of the protective layer can be accurately controlled, the template cannot be damaged, the problem that the positioning reinforcing steel bars are exposed due to damage of the template in the prior art is solved, and the concrete pouring quality is improved.

Compared with the mode that inserts the reinforcing bar between framework of steel reinforcement and template in prior art, the mode that has this application, it is convenient to have to insert, low in labor strength's characteristics, simultaneously can also reduce cost (prior art is through the mode of inserting the reinforcing bar, and inserted reinforcing bar needs certain length just can play a role to inserted reinforcing bar size still needs to be confirmed with the thickness of protective layer, leads to the cost higher, and the process intensity of labour who inserts the reinforcing bar is also very big).

The utility model provides a centre gripping groove can carry out the centre gripping with steel reinforcement framework's main muscle or support and hold, when centre gripping groove and steel reinforcement framework's main muscle centre gripping (the mutual adaptation of diameter size of centre gripping groove and main muscle promptly), the thickness of protective layer can be confirmed promptly to the distance of device body control centre gripping groove and locating surface this moment. When the clamping groove and the main rib of the steel bar framework abut against each other (the opening width of the clamping groove is larger than the size of the horizontal rib or the main rib, or the clamping groove can be suitable for the main ribs with different diameters), the distance between the contact part at the outermost side of the main rib and the positioning surface in the clamping groove is determined, and the thickness of the protective layer can be ensured. Will be apparent and understood by those skilled in the art and will not be described in detail herein.

The distance is horizontal or vertical, when the template is a vertical template (i.e. the template is vertical to the horizontal plane), the distance between the clamping groove and the positioning surface is horizontal; when the template is a horizontal template (i.e. the template is parallel to the horizontal plane), the distance between the clamping groove and the positioning surface is a vertical distance.

The cross sections of the columns, the beams and the walls of the building are rectangular or polygonal with the number of sides larger than 4, and therefore the template on the periphery of the steel reinforcement framework is a rectangular pile or a polygonal with the number of sides larger than 4. Consequently, the contained angle has between two locating surfaces 4 of this application to the contained angle is greater than 0 and less than or equal to 90, thereby makes the one-time operation can realize that two adjacent steel reinforcement framework's side fixes a position, thereby controls the protective layer thickness of two adjacent sides of steel reinforcement framework.

Of these, the rectangular-shaped reinforcing cage is the most common, and therefore, in some embodiments, the included angle between the two positioning surfaces 4 is 90 °, that is, the two positioning surfaces 4 are perpendicular to each other.

Of course, a person skilled in the art can determine the included angle between the two positioning surfaces according to the casting shape, and details thereof are omitted here.

The thickness of the steel bar protective layer is also different under different conditions (as in the first paragraph in the background of the present application), and therefore, the distance between the clamping groove and the positioning surface can be selected and controlled by those skilled in the art according to the thickness of the protective layer, which is not described herein again.

In some embodiments, the clamping groove 1 clamps or abuts against the main bar of the steel bar framework. That is, in some embodiments, the clamping groove 1 and the main rib 01 are clamped to each other. In some embodiments, the clamping groove 1 and the main rib 01 abut against each other.

In some embodiments, the clamping groove 1 can clamp or abut against at least one diameter of the main rib. That is, the diameter of the main rib 01 is different in different conditions. In some embodiments, the clamping groove 1 can clamp or abut against a diameter of the main rib 01. In some embodiments, the clamping groove 1 can clamp or abut two or more diameter main ribs 01.

In some embodiments, the opening width of the clamping groove 1 becomes gradually larger along the direction from the position surface to the position surface 4, or the clamping groove 1 is step-shaped. That is to say this application designs through the shape with the centre gripping groove, through the centre gripping groove of opening width gradual change or the centre gripping groove of step form for a centre gripping groove can be applicable to the level muscle and the main muscle of different diameters size, in order to improve the convenience when this application uses.

Referring to fig. 3 (including 3a, 3b, 3c and 3 d), in fig. 3a and 3b, the holding groove 1 is adapted to and holds the main rib 01 of a diameter. In fig. 3c, the opening width of the clamping groove 1 gradually increases along the direction from the positioning surface 4 to the positioning surface 4 (i.e. one side surface of the clamping groove is an inclined surface, for example, gradually changes from 6mm to 12 mm), and the clamping groove 1 can be mutually matched with the main ribs with various diameters and sizes for clamping. In fig. 3d, the clamping groove is stepped, and the stepped clamping groove is matched with the main ribs with various diameters for clamping.

Referring to fig. 4 (including fig. 4a and 4 b), in fig. 4a and 4b, the clamping groove 1 and the main rib 01 are abutted against each other, so that the main ribs with various diameters can be abutted by one clamping groove.

In some embodiments, the device body 2 has a wedge portion 3 for being inserted between the steel reinforcement cage and the formwork 03, and the width of the wedge portion 3 is gradually reduced along the insertion direction between the steel reinforcement cage and the formwork 03. For example when framework of steel reinforcement is the framework of steel reinforcement of post, framework of steel reinforcement outlying template is erect and is placed (with horizontal plane mutually perpendicular), and the device body of this application inserts along the direction from last to down this moment, and wedge-shaped width diminishes along the direction from last to down gradually so. When framework of steel reinforcement is the framework of roof beam, framework of steel reinforcement outlying template includes horizontal template (being parallel to each other with the horizontal plane) and erects the template (with horizontal plane mutually perpendicular), and when this application's device body was used for inserting between framework of steel reinforcement and the horizontal template, the width of wedge portion diminishes along the direction of inserting (from a left side to the right direction or from a right side to the left direction) gradually.

Wherein, the wedge-shaped part 3 is arranged on the device body and is used for being inserted between the steel reinforcement framework and the template from the end part (the upper end, the left end or the right end) of the template.

When the interval between framework of steel reinforcement and the template 03 is less when needing the adjustment, need with the device body insert in the clearance between framework of steel reinforcement and the template 03, consequently, in the clearance between framework of steel reinforcement and the template is inserted to the convenience of installing the body, the lower extreme of device body has wedge portion 3, reduces the degree of difficulty when using, also makes the interval between framework of steel reinforcement and the template 03 adjust gradually simultaneously, reduces the risk that template 03 damaged.

With reference to fig. 5, in some embodiments, the device body 2 includes two mounting plates 5 perpendicular to each other, two ends of the mounting plates 5 connected to each other are provided with a supporting plate 7, the two supporting plates 7 form a clamping groove 1 for clamping or supporting with a main rib 01 of a steel bar framework, one end of the mounting plate 5 away from the supporting plate 7 is provided with a positioning plate 6, one end of the mounting plate 5 away from the supporting plate 7 extends out of the positioning plate 6, a side surface of the positioning plate 6 away from the supporting plate 7 is used for contacting with an inner wall of the formwork 03, and a lower end surface of the mounting plate 5 extending out of the positioning plate 6 is a contact surface 9 for contacting with an end of the formwork, that is, a side surface of the mounting plate 5 facing the positioning surface 4 is a contact surface 9.

In some embodiments, the two mounting plates 5 are connected to each other to form a whole, or the two mounting plates 5 are integrally formed and have an "L" shape.

In some embodiments, the mounting plate 5 and the holding plate 7 are connected to form a whole, or the mounting plate and the holding plate 7 are integrally formed and are in an "L" shape; then the two mounting plates 5 of the driving and supporting plate 7 are connected with each other to form a whole.

The two abutting plates 7 are used for forming the clamping groove 1 for clamping or abutting against the main bar 01 of the steel bar framework, and therefore, the shape of the abutting plates 7 is not particularly limited in the present application. In some embodiments, the holding plate 7 is a flat plate. In some embodiments, the retaining plate is an arcuate plate. In some embodiments, the holding plate is comb-shaped.

In fig. 5, the positioning plate 6 is formed by bending or punching the mounting plate 5.

With reference to fig. 6, in some embodiments, on the basis of the embodiment shown in fig. 5, a baffle 8 for abutting against the main rib 01 and/or the horizontal rib 04 of the steel bar framework is further disposed on the mounting plate 5, and the baffle 8 and the abutting plate 7 are respectively located on the upper side and the lower side of the mounting plate 5, so as to prevent the baffle 8 and the abutting plate 7 from mechanically interfering. Wherein, in some embodiments, the baffle 8 and the main rib are mutually abutted. In some embodiments, the baffle and the horizontal rib abut against each other.

With reference to fig. 7, in some embodiments, the device body 2 includes two mutually perpendicular mounting plates 5, one end of the two mounting plates 5 that are connected to each other is formed with a clamping groove 1 for mutually clamping or abutting against a main rib 01 of a steel bar framework, one end of the mounting plate 5 that is far away from the clamping groove 1 is provided with a positioning plate 6, one end of the mounting plate 5 that is far away from the clamping groove 1 extends out of the positioning plate 6, a side surface of the positioning plate 6 that is far away from the clamping groove 1 is a contact positioning surface 4 for being used for contacting with an inner wall of a formwork 03, and a lower end surface of the mounting plate 5 that extends out of the positioning plate 6 is a contact surface 9 for being used for contacting with an end of the formwork 03. This embodiment differs from the embodiment shown in fig. 5 in that: fig. 7 shows an embodiment in which the clamping groove opens directly into the mounting plate 5.

In some embodiments, on the basis of the embodiment shown in fig. 7, the mounting plate 5 is further provided with a baffle 8 for abutting against the main rib 01 and/or the horizontal rib 04 of the steel reinforcement framework. The device body is clamped with the main rib 01 through the clamping groove 1, and meanwhile, the baffle 8 on the upper side and/or the lower side of the mounting plate 5 is abutted against the main rib 01 and/or the horizontal rib 04, so that the connection stability with the steel bar framework is improved.

In some embodiments, in combination with fig. 8, the mounting plate or the positioning plate has a wedge 3 for facilitating insertion between the steel reinforcement cage and the formwork, in addition to the above-described embodiments. For example, the mounting plate 5 is provided with wedges 3 below, and the wedges are disposed between the retaining plates 6 and the retaining grooves 1 (when the mounting plate is also provided with the retaining plates 8 below, the wedges are located on the mounting plate between the retaining plates) to facilitate insertion between the steel skeleton and the erecting formwork 03 using the wedges 3. For another example, the side of the positioning plate 6 facing away from the positioning surface 4 is an inclined surface (i.e., the positioning plate is wedge-shaped), and the inclined surface gradually inclines upward along the direction from the bottom of the positioning plate 6 to the clamping groove 1.

Claims (9)

1. The utility model provides a protective steel bar layer positioner, its characterized in that includes the device body, has on the device body to be used for the centre gripping or support to hold the centre gripping groove on the main muscle on framework of steel reinforcement, has two locating surfaces that are used for carrying out the contact with the inner wall of two adjacent templates on the device body, has the contained angle between two locating surfaces, the device body utilizes the interval between centre gripping groove and the locating surface to control the interval between framework of steel reinforcement and the template, the one end towards the template has the contact surface that is used for the tip contact with the template on the device body, the contact surface is located the top of locating surface.

2. The device for positioning a steel bar protection layer according to claim 1, wherein the clamping groove can clamp or abut against at least one diameter of the main bar of the steel bar framework.

3. The protective steel bar layer positioning device according to claim 2, wherein the opening width of the clamping groove is gradually increased in a direction from the position surface to the position surface, or the clamping groove is stepped.

4. The protective steel bar layer positioning device according to claim 1, wherein the device body has a wedge portion for facilitating insertion between the steel bar skeleton and the formwork, and a width of the wedge portion is gradually reduced along an insertion direction between the steel bar skeleton and the formwork.

5. The protective steel bar covering positioning device according to claim 1, wherein an included angle between the two positioning surfaces is greater than 0 ° and equal to or less than 90 °.

6. The steel bar protection layer positioning device according to any one of claims 1 to 5, wherein the device body comprises two mounting plates perpendicular to each other, one end of each of the two mounting plates, which is connected to each other, is provided with a holding plate, the two holding plates form a holding groove for holding or holding a main bar of the steel bar framework, one end of each of the mounting plates, which is away from the holding plate, is provided with a positioning plate, one end of each of the mounting plates, which is away from the holding plate, extends out of the positioning plate, the side surface of each of the positioning plates, which is away from the holding plate, is a positioning surface for contacting with an inner wall of the formwork, and the lower end surface of each of the mounting plates, which extends out of the positioning plate, is a contact surface for contacting with an end of the formwork.

7. The steel bar protection layer positioning device according to any one of claims 1 to 5, wherein the device body comprises two mounting plates which are perpendicular to each other, a clamping groove for clamping or abutting against a main bar of a steel bar framework is formed at one end where the two mounting plates are connected with each other, a positioning plate is arranged at one end of each mounting plate, which is away from the clamping groove, a positioning plate extends from one end of each mounting plate, which is away from the clamping groove, a side surface of each positioning plate, which is away from the clamping groove, is a positioning surface for contacting with an inner wall of the formwork, and a lower end surface of each mounting plate, which extends out of the positioning plate, is a contact surface for contacting with an end of the formwork.

8. The steel bar protection layer positioning device according to claim 6, wherein the mounting plate is further provided with a baffle plate for abutting against the main rib and/or the horizontal rib of the steel bar framework, and the baffle plate and the abutting plate are respectively positioned at the upper side and the lower side of the mounting plate.

9. The reinforcement protection layer positioning device according to claim 7, wherein the mounting plate is further provided with a baffle plate for abutting against a main rib and/or a horizontal rib of the reinforcement cage.

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