Reinforced concrete protection layer positioning ring

Abstract

The utility model provides a reinforced concrete protective layer positioning ring, which relates to the technical field of protective layer positioning and comprises a positioning ring body, a fixing plate is fixedly connected onto the surface of the positioning ring body, a screw rod is rotatably connected onto the opposite surfaces of the positioning ring body and the fixing plate, a lantern ring is in threaded connection onto the screw rod, and the lantern ring is in threaded connection with the fixing plate. A penetrating sliding rod is fixedly connected to the surface of a lantern ring, two gears are driven to rotate oppositely at the same time through assistance of an arc-shaped sliding groove, an arc-shaped plate and teeth, rotation of the gears drives a lead screw to rotate, then the lantern ring, the penetrating sliding rod, a push rod and extrusion plates do linear motion along the lead screw, and therefore the distance between the two extrusion plates is adjusted; and the steel bars with different thicknesses can be clamped, the steel bars with different thicknesses can be conveniently positioned by the positioning ring body, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of protective layer positioning technology, and in particular to a positioning ring for reinforced concrete protective layers. Background Technology

[0002] A protective layer positioning ring is an auxiliary material used in reinforced concrete construction. Its main function is to fix and position the protective layer of the reinforcing cage. It ensures that the thickness and position of the protective layer meet design requirements, thereby guaranteeing project quality and construction safety.

[0003] However, in the existing technology, most of the existing positioning rings used for reinforced concrete cover can only position steel bars of the same size and lack self-adjustment measures, which makes it inconvenient to position steel bars of different thicknesses and has low practicality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies: most positioning rings used for reinforced concrete protective layers can only position steel bars of the same size, lack self-adjustment measures, making it inconvenient to position steel bars of different thicknesses, resulting in low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a positioning ring for reinforced concrete protective layer, comprising a positioning ring body, a fixing plate fixedly connected to the surface of the positioning ring body, and a lead screw rotatably connected to the opposite surfaces of the positioning ring body and the fixing plate, a collar threadedly connected to the lead screw, a through slide rod fixedly connected to the surface of the collar, the through slide rod penetrating and connecting with the fixing plate, a push rod fixedly connected to one end of the through slide rod, the push rod penetrating and connecting with the positioning ring body, a pressing plate fixed to one end of the push rod, an arc-shaped groove formed on the arc-shaped inner surface of the positioning ring body, an arc-shaped plate slidably connected in the arc-shaped groove, teeth fixed on one side surface of the arc-shaped plate, and a gear fixed on the outer surface of the lead screw, with the gear meshing with the teeth.

[0006] In a preferred embodiment, one side surface of the extrusion plate is provided with an anti-slip texture.

[0007] In a preferred embodiment, an anti-slip protrusion is fixedly connected to the surface of the arc-shaped plate away from the teeth.

[0008] In one preferred embodiment, a perforated clip is fixedly connected to one end of the arc-shaped plate.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] This invention allows an arc-shaped plate to slide along an arc-shaped groove, causing the teeth to simultaneously drive two meshing gears to rotate in opposite directions. The rotation of the gears drives the rotation of the lead screw, which in turn causes the collar, through slide rod, push rod, and extrusion plate to move linearly along the lead screw. This adjusts the distance between the two extrusion plates, enabling them to clamp steel bars of different thicknesses. This facilitates the positioning ring body in positioning steel bars of different thicknesses, improving practicality. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of a positioning ring for a reinforced concrete protective layer provided by this utility model;

[0012] Figure 2 A schematic diagram of the structure around the extrusion plate of a positioning ring for a reinforced concrete protective layer provided by this utility model;

[0013] Figure 3 This utility model provides a positioning ring for reinforced concrete protective layer. Figure 1 Enlarged view of point A in the middle.

[0014] Legend:

[0015] 1. Positioning ring body; 2. Fixing plate; 3. Lead screw; 4. Collar; 5. Through slide bar; 6. Push rod; 7. Extrusion plate; 8. Arc-shaped slide groove; 9. Arc-shaped plate; 10. Tooth; 11. Gear; 12. Anti-slip convex plate; 13. Perforated block. Detailed Implementation

[0016] 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.

[0017] Example 1

[0018] like Figure 1-3As shown, this utility model provides a technical solution: a positioning ring for reinforced concrete protective layer, including a positioning ring body 1. A fixing plate 2 is fixedly connected to the surface of the positioning ring body 1. By connecting the fixing plate 2 to one end of the lead screw 3, the stability of the lead screw 3 when rotating away from the end of the positioning ring body 1 is effectively improved. The lead screw 3 is rotatably connected to the opposite surfaces of the positioning ring body 1 and the fixing plate 2. By rotating the lead screw 3, the collar 4, the through slide rod 5, the push rod 6, and the pressing plate 7 are driven to move linearly along the lead screw 3. The screw 3 has a threaded connection to a collar 4, and a through-slide rod 5 is fixedly connected to the surface of the collar 4. The through-slide rod 5 is connected to the fixed plate 2 through the screw 3. This through-slide rod 5 prevents the collar 4 from rotating with the screw 3, ensuring that the collar 4 moves linearly on the screw 3 when it rotates. One end of the through-slide rod 5 is fixedly connected to a push rod 6, and the push rod 6 is connected to the positioning ring body 1 through the screw 3. One end of the push rod 6 is fixed to a pressing plate 7. The movement of the through-slide rod 5 will drive the push rod 7. The movement of push rod 6 causes the pressing plate 7 to move. Push rod 6 is positioned at the center of one side of pressing plate 7, facilitating a powerful push. Adjusting the movement of the two pressing plates 7 allows for easy control of the distance between them, enabling them to clamp steel bars of different thicknesses. This facilitates the positioning ring body 1 in positioning steel bars of varying thicknesses. An arc-shaped groove 8 is formed on the arc-shaped inner surface of the positioning ring body 1, and an arc-shaped plate 9 is slidably connected within the arc-shaped groove 8. One side surface of the arc-shaped plate 9 is fixed with teeth 10, and the outer surface of the lead screw 3 is fixed with gears 11, which mesh with the teeth 10. By allowing the arc-shaped plate 9 to slide along the arc-shaped groove 8, the teeth 10 simultaneously drive the two meshing gears 11 to rotate in opposite directions, thereby driving the two lead screws 3 to rotate in opposite directions simultaneously. The two lead screws 3 can be controlled to rotate in opposite directions by pushing the arc-shaped plate 9 with one hand, without having to use both hands to rotate the two lead screws 3 at the same time, thus improving the convenience of operation.

[0019] Example 2

[0020] like Figure 1-3As shown, an anti-slip texture is provided on one side surface of the extrusion plate 7. The anti-slip texture increases the friction on one side of the extrusion plate 7, thereby effectively improving the stability of the extrusion plate 7 in clamping the rebar. An anti-slip protrusion 12 is fixedly connected to the side surface of the arc plate 9 away from the teeth 10. With the help of the anti-slip protrusion 12, the upper surface of the arc plate 9 is uneven, making it easier to manually push the arc plate 9 and reducing slippage when pushing the arc plate 9. A perforated locking block 13 is fixedly connected to one end of the arc plate 9. When the arc plate 9 has moved and the extrusion plate 7 has finished clamping the rebar, the iron wire is passed through the perforated locking block 13 and tied to the positioning ring body 1, which effectively improves the overall stability of the arc plate 9 after movement, thereby ensuring the stability of the extrusion plate 7 in clamping the rebar.

[0021] Working principle:

[0022] like Figure 1-3 As shown, when using this utility model, the user first takes out the positioning ring body 1 and places it towards the rebar, so that the rebar is near the center of the positioning ring body 1. Then, the positioning ring body 1 is adjusted to a suitable position on the rebar and stopped moving. Then, the user pushes the arc plate 9 with their finger, so that the arc plate 9 moves along the arc groove 8. The movement of the arc plate 9 drives the movement of the teeth 10, so that the teeth 10 simultaneously drives the two gears 11 meshing with it to rotate. The two gears 11 rotate in opposite directions. The two counter-rotating gears 11 drive the two lead screws 3 to rotate in opposite directions. The rotation of the lead screws 3 drives the collar 4, the through slide rod 5, the push rod 6 and the pressing plate 7 to move linearly along the lead screws 3, so that the distance between the two pressing plates 7 gradually decreases, and finally clamps the rebar. When the arc plate 9 has finished moving and the pressing plate 7 has finished clamping the rebar, the stability of the arc plate 9 after movement is effectively improved by passing the wire through the perforated block 13 and binding it to the positioning ring body 1, so that the positioning ring body 1 is stably positioned on the rebar.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A positioning ring for reinforced concrete protective layer, comprising a positioning ring body (1), characterized in that: A fixing plate (2) is fixedly connected to the surface of the positioning ring body (1), and a lead screw (3) is rotatably connected to the opposite surface of the positioning ring body (1) and the fixing plate (2). A collar (4) is threaded onto the lead screw (3). A through slide rod (5) is fixedly connected to the surface of the collar (4), and the through slide rod (5) is connected to the fixing plate (2). A push rod (6) is fixedly connected to one end of the through slide rod (5), and the push rod (6) is connected to the positioning ring body (1). A pressing plate (7) is fixed to one end of the push rod (6). An arc-shaped groove (8) is opened on the arc-shaped inner surface of the positioning ring body (1), and an arc-shaped plate (9) is slidably connected in the arc-shaped groove (8). A tooth (10) is fixed on one side surface of the arc-shaped plate (9). A gear (11) is fixed on the outer surface of the lead screw (3), and the gear (11) meshes with the tooth (10).

2. The positioning ring for reinforced concrete protective layer according to claim 1, characterized in that: The extrusion plate (7) has an anti-slip texture on one side surface.

3. The positioning ring for reinforced concrete protective layer according to claim 1, characterized in that: An anti-slip protrusion (12) is fixedly connected to the side surface of the arc plate (9) away from the tooth (10).

4. The positioning ring for reinforced concrete protective layer according to claim 1, characterized in that: One end of the arc plate (9) is fixedly connected to a perforated clip (13).

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