Connecting device of outer frame perforated steel screen

Abstract

The connecting device comprises a front baffle and a rear baffle, a pull rod is fixedly arranged on the front baffle, the pull rod penetrates through the rear baffle and then is connected with a fixing piece, a locking piece comprises a push rod and a fixing head which are rotationally connected, and the front end of the push rod pushes the rear baffle to move towards the front baffle along the pull rod; and an anti-loosening device is arranged on the push rod at the rear end of the fixed head. According to the device, the front baffle and the rear baffle make contact with the two sides of the upper steel plate net and the lower steel plate net correspondingly, the contact area is large, and stability is high after fastening. And only rotating operation is needed, so that the operation is simple and quick. In addition, no harm is caused to the human body in the operation process, and the service life is long.

Description

Technical Field

[0001] The utility model relates to a connecting device, in particular to a connecting device for an external frame perforated steel plate mesh. Background Art

[0002] In traditional construction projects, the external scaffolding protection nets are mostly flame-retardant dense meshes. After a certain period of use, the dense meshes are easily polluted, fall off, and damaged, affecting the overall facade image. As a result, perforated steel mesh has been used more and more. The connection between the upper and lower layers of the perforated steel mesh is mostly connected by wire binding, but wire binding has certain safety hazards and is easy to cause scratches to the human body during operation; after long-term use, the steel wire is easy to rust and break, and the connection function cannot be achieved. In addition, the binding quality is greatly affected by human factors and is not beautiful.

[0003] Therefore need to invent a kind of new connection device. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a connection device for an external frame perforated steel plate mesh.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A connecting device for an external frame perforated steel plate mesh includes a front baffle and a rear baffle, wherein a pull rod is fixedly arranged on the front baffle, and the pull rod passes through the rear baffle and is connected to a fixing member, wherein the locking member includes a rotatably connected push rod and a fixing head, and the front end of the push rod pushes the rear baffle to move along the pull rod toward the front baffle.

[0007] The first structure of the fixed head: the fixed head is a fastening nut, and the pull rod is fixedly connected to the fastening nut after passing through the rear baffle; the outer periphery of the push rod is provided with an external thread, and the fastening nut is threadedly connected to the push rod, and the push rod is rotated so that its front end pushes the rear baffle to move.

[0008] In a further solution, a locking nut is threadedly connected to the push rod located behind the fastening nut; the thread directions of the locking nut and the fastening nut are opposite.

[0009] A further solution is a second structure of the fixed head: an external thread is provided on the outer periphery of the push rod, the fixed head is a locking piece, the locking piece includes a rotating end and a connecting end of an integral structure, a through threaded hole is provided at the center of the rotating end and the connecting end, an annular groove is provided on the rotating end located on the outer periphery of the connecting end, the end of the pull rod passes through the annular groove and is fixed to the locking piece with a fixing nut; the locking piece or the push rod is rotated so that the front end of the push rod pushes the rear baffle to move.

[0010] In a further solution, there are two pull rods, which are symmetrically arranged on both sides of the push rod.

[0011] In a further solution, a through hole for the pull rod to pass through is provided on the rear baffle, and the inner diameter of the through hole is larger than the outer diameter of the pull rod; a limiting groove for limiting the end of the push rod is provided at the center of the rear baffle, and a rubber pad is provided at the bottom end of the limiting groove.

[0012] In order to improve its clamping force and stability, side baffles extending toward the rear baffle are respectively fixed at both ends of the front baffle.

[0013] When the device is used, the front baffle and the rear baffle of the device are placed on both sides of the upper and lower steel plate meshes respectively, and the pull rod located between the front baffle and the rear baffle is just stuck in the connection seam of the upper and lower steel plate meshes and moves along the connection seam to the position to be fixed. The front end of the push rod is rotated to push the rear baffle to move along the pull rod toward the front baffle and close to the upper and lower steel plate meshes, and finally fixed to achieve the connection of the upper and lower steel plate meshes.

[0014] The front baffle and the rear baffle of the device are in contact with the two sides of the upper and lower steel plate mesh respectively, and the contact area is large, and the stability is high after tightening. And only rotation operation is required, which is simpler and faster than twisting the iron wire. And it will not cause harm to the human body during the operation, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0016] Figure 1 It is the first structural schematic diagram of this application;

[0017] Figure 2 is a cross-sectional view of the first structure of the present application;

[0018] Figure 3 It is a schematic diagram of the structure of the rear baffle in this application;

[0019] Figure 4 This is a usage state diagram of the first structure of this application;

[0020] Figure 5 It is a cross-sectional view of the second structure of the present application.

[0021] Description of the markings in the figure:

[0022] 1. Front baffle; 2. Rear baffle, 21. Through hole, 22. Limiting groove; 3. Pull rod; 4. Threaded rod; 5. Anti-loosening nut; 6. Fastening nut; 7. Side baffle; 8. Locking piece, 81. Connecting end, 82. Rotating end, 83. Fixing nut; 9. Upper steel plate mesh; 10. Lower steel plate mesh. DETAILED DESCRIPTION

[0023] In order to make the technical scheme of the present application better understood by the persons skilled in the art, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field belong to the scope of protection of the present application.

[0024] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0025] See also Figure 1-5 A connecting device for an external frame perforated steel plate mesh comprises a front baffle 1 and a rear baffle 2. A pull rod 3 is fixedly arranged on the front baffle 1. The pull rod 3 passes through the rear baffle 2 and is connected to a fixing member. The locking member comprises a rotatably connected push rod 4 and a fixed head. The front end of the push rod 4 pushes the rear baffle 2 to move along the pull rod 3 toward the front baffle 1. An anti-loosening device is arranged on the push rod at the rear end of the fixed head.

[0026] When connecting, the device is inserted into the upper and lower steel plate meshes along the connecting seam between the upper steel plate mesh 9 and the lower steel plate mesh 10, and the front baffle 1 and the rear baffle 2 are respectively placed on both sides of the upper and lower steel plate meshes, that is, the pull rod 3 located between the front baffle 1 and the rear baffle 2 is just stuck in the connecting seam of the upper and lower steel plate meshes; then the front end of the push rod 4 is rotated to push the rear baffle 2 to move along the pull rod 3 toward the front baffle 1, and after further fixing it with the anti-loosening device, the upper and lower steel plate meshes are connected (such as Figure 4 shown).

[0027] The first structure of the fixed head of the present application is as follows Figure 1-3 As shown, the fixed head is a fastening nut 6, and the pull rod 3 is fixedly connected to the fastening nut 6 after passing through the rear baffle 2; the outer periphery of the push rod 4 is provided with an external thread, and the fastening nut 6 is threadedly connected to the push rod 4, and the push rod 4 is rotated so that its front end pushes the rear baffle 2 to move.

[0028] In this embodiment, the anti-loosening device is an anti-loosening nut 5, and the anti-loosening nut 5 is threadedly connected to the push rod 4 located behind the fastening nut 6; the thread directions of the anti-loosening nut 5 and the fastening nut 6 are opposite.

[0029] In this embodiment, the front end of the push rod 4 is not connected to the rear baffle 2, and the rear end is threadedly connected to the fastening nut 6. When the push rod 4 is rotated, the fastening nut 6 of the push rod 4 rotates. Since the position of the fastening nut 6 is unchanged, the push rod 4 moves horizontally toward the front end until it contacts the rear baffle 2 and further pushes the rear baffle 2 to move toward the front baffle 1, thereby fixing the upper and lower steel plate meshes clamped between the front and rear baffles.

[0030] In order to improve the clamping force and stability of the device, side baffles 7 extending toward the rear baffle 2 are fixedly provided at both ends of the front baffle 1. Figure 1-2 As shown, it is tilted, and its tilt angle is 2-10 degrees, which not only increases the force-bearing area, but also enables its ends to be better clamped on the upper and lower steel plate meshes. If the angle is too large, there will be a gap between the front baffle and the upper and lower steel plate meshes, which is not conducive to clamping connection.

[0031] In this embodiment, there are two pull rods 3, which are symmetrically arranged on both sides of the push rod 4, so as to improve the stability of the device; at the same time, they also play a guiding role in the movement of the rear baffle.

[0032] Of course, the pull rods can also be set to three or four, depending on the actual situation.

[0033] like Figure 3 As shown, the rear baffle 2 is provided with two through holes 21 for the pull rod 3 to pass through, and the inner diameter of the through holes is larger than the outer diameter of the pull rod 3; a limiting groove 22 for limiting the end of the push rod 4 is provided at the center of the rear baffle 2, and a rubber pad is provided at the bottom of the limiting groove 22. The front end of the push rod 4 is a movable end, which is moved into the limiting groove 22 to limit it, so as to avoid lateral movement and affect the clamping force between the front and rear baffles. The limiting groove 22 is a blind hole, and the rubber pad at its bottom is to enhance the friction between the end of the push rod.

[0034] The second structure of the fixed head of the present application is as follows Figure 5 As shown, in this embodiment, the outer periphery of the push rod 4 is provided with an external thread, the anti-loosening device is a fixing nut 83, the fixed head is a locking member 8, and the locking member 8 includes a rotating end 82 and a connecting end 81 of an integrated structure. A through threaded hole is provided at the center of the rotating end and the connecting end and meshes with the external thread on the push rod 4, and an annular notch is provided on the rotating end located on the outer periphery of the connecting end. The end of the pull rod passes through the annular notch and is fixed to the locking member 8 with a fixing nut 83; the inner diameter of the annular notch is larger than the outer diameter of the pull rod. When the locking member is rotated, the pull rod 3 is in a free state in the annular notch, that is, it will not affect it.

[0035] In this embodiment, the locking member 8 or the push rod 4 is rotated so that the front end of the push rod 4 pushes the rear baffle 2 to move. When the front end of the push rod 4 is welded to the rear baffle 2, the locking member 8 is rotated to move along the push rod until the rear baffle is moved to the position and then fixed. At this time, the pull rod 3 does not move in the annular groove, and its end gradually extends out of the locking member, and then is fixed with the fixing nut 83. This further avoids the possibility of reversal between the push rod and the locking member, and enhances the overall stability of the device.

[0036] In order to reduce the size of the gap between the upper and lower steel plate meshes in the present application, the front end of the pull rod 3 can be designed to be flat, and the rear end can be designed to be cylindrical, and a threaded structure is provided on its outer circumference to facilitate the installation of the fixing nut.

[0037] All parts in this application are made of steel, and their surfaces are sprayed with galvanized anti-rust paint to prevent rust.

[0038] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are within the scope of protection of the pending claims of the present application.

[0040] In the description of the present application, the orientations or positional relationships indicated by terms such as "longitudinal", "circumferential", "left", "right", "up", "down", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application. They do not require that the present application must be constructed and operated in a specific orientation and are therefore not to be construed as limitations on the present application.

[0041] In addition, the terms "install", "set", "connect", and "fixed" used in this application should be understood in a broad sense. For example, the connection can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

Claims

1. A connection device for an external frame perforated steel plate mesh, comprising a front baffle (1) and a rear baffle (2), characterized in that: A pull rod (3) is fixedly provided on the front baffle (1), and the pull rod (3) passes through the rear baffle (2) and is connected to a fixing member, wherein the fixing member comprises a push rod (4) and a fixing head which are rotatably connected, and the front end of the push rod (4) pushes the rear baffle (2) to move along the pull rod (3) toward the front baffle (1); an anti-loosening device is provided on the push rod at the rear end of the fixing head.

2. The connection device of the external frame perforated steel mesh according to claim 1 is characterized in that: The fixing head is a fastening nut (6), and the pull rod (3) is fixedly connected to the fastening nut (6) after passing through the rear baffle (2); an external thread is provided on the outer periphery of the push rod (4), and the fastening nut (6) is threadedly connected to the push rod (4), and the push rod (4) is rotated so that its front end pushes the rear baffle (2) to move.

3. The connection device of the external frame perforated steel plate mesh according to claim 2 is characterized in that: A locking nut (5) is threadedly connected to the push rod (4) located behind the fastening nut (6); the thread directions of the locking nut (5) and the fastening nut (6) are opposite.

4. The connection device of the external frame perforated steel mesh according to claim 1 is characterized in that: The outer circumference of the push rod (4) is provided with an external thread, the fixed head is a locking member (8), and the locking member (8) includes a rotating end (82) and a connecting end (81) of an integral structure. A through threaded hole is provided at the center of the rotating end and the connecting end, and an annular notch is provided on the rotating end located on the outer circumference of the connecting end. The end of the pull rod (3) passes through the annular notch and is fixed to the locking member (8) with a fixing nut (83); the locking member (8) or the push rod (4) is rotated so that the front end of the push rod (4) pushes the rear baffle (2) to move.

5. The connection device of the external frame perforated steel mesh according to claim 1 is characterized in that: There are two pull rods (3), which are symmetrically arranged on both sides of the push rod (4).

6. The connection device of the external frame perforated steel plate mesh according to claim 5, characterized in that: The rear baffle (2) is provided with a through hole (21) for the pull rod (3) to pass through, and the inner diameter of the through hole is larger than the outer diameter of the pull rod (3); a limiting groove (22) for limiting the end of the push rod (4) is provided at the center of the rear baffle (2), and a rubber pad is provided at the bottom end of the limiting groove (22).

7. The connection device of the external frame perforated steel mesh according to claim 1 is characterized in that: Side baffles (7) extending in the direction of the rear baffle (2) are respectively fixedly provided at both ends of the front baffle (1).

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