Light steel keel shearing device for spray construction composite wall

Abstract

The application discloses a light steel keel shearing device for spray construction type composite wall, and the handle end part close to the pin shaft is provided with a beveled head; the fixed clamping block A and the fixed clamping block B are both provided with beveled edges, and when the beveled edges contact with the beveled head of the handle, the handle and the horizontal line present an angle alpha, and the angle alpha is less than 90 degrees. In the state that the light steel keel is not sheared, since the angle alpha presented by the handle and the horizontal line is less than 90 degrees, the handle with the blade rotates and presses down into the fixed clamping block A and the fixed clamping block B under the gravity, at this time, the blade edge is received between the fixed clamping block A and the fixed clamping block B, the condition that the blade edge presents an upward posture after rotating 180 degrees relative to the fixed clamping block A and the fixed clamping block B is avoided, and the problem that the blade presents the upward posture of the blade edge in the state that the keel is not sheared and the safety hidden danger exist are solved.

Description

Technical Field

[0001] This utility model relates to a light steel keel shearing device for spray-cast composite walls, belonging to the category of keel shearing devices. Background Technology

[0002] Before spraying phosphogypsum slurry onto the sprayed composite wall, the light steel keel and mesh must be installed at the wall location. Since the light steel keel is of fixed length at the factory, it needs to be cut to fit the actual splicing requirements during installation.

[0003] The existing technology for cutting light steel keel can be found in Chinese Patent Publication No. CN221269840U. Although the handle with the fixed blade can be rotatably hinged to the fixed clamping block, and the blade can be rotated on the fixed clamping block by the handle to cut the keel, the blade will be in an upward-facing position when the keel is not being cut, which poses a safety hazard. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a light steel keel shearing device for spray-cast composite walls.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a light steel keel shearing device for spray-cast composite walls, comprising: Both are fixed clamping blocks A and B in a fixed state, and fixed clamping blocks A and B are distributed at intervals; A pin is installed through one end of the fixed clamping block A and the fixed clamping block B, and the other end of the fixed clamping block A and the fixed clamping block B is open; A blade is installed between the fixed clamping block A and the fixed clamping block B, and the blade is rotatably hinged to the pin. One side of the blade is the cutting edge; the other side of the blade is the back of the blade, and a handle is fixed to the back of the blade. The handle end near the pin has a beveled mouth; the fixed clamp A and fixed clamp B ends with the pin are both provided with beveled edges. When the beveled edges abut against the beveled mouth of the handle, the handle forms an angle α with the horizontal line, where α is less than ninety degrees.

[0007] The handle is made of hollow steel pipe.

[0008] The bottom edges of both the fixing clamp A and the fixing clamp B are fixed to the metal base plate; the four corners of the metal base plate are fixedly connected to the support plates by screws.

[0009] The support plate is made of wood.

[0010] Both the fixing clamp A and the fixing clamp B are reinforced and fixed to the metal base plate by the reinforcing diagonal braces A and B.

[0011] Both the fixed clamping block A and the fixed clamping block B are provided with placement grooves for the C-shaped edge of the light steel keel to extend into and be placed. The reinforcing diagonal rod A is located between the placement groove and the pin shaft, and the reinforcing diagonal rod B is located between the two placement grooves.

[0012] The beneficial effects of this utility model are as follows: When the light steel keel is not cut, since the angle α between the handle and the horizontal line is less than 90 degrees, the handle, carrying the blade, rotates and presses down between the fixed clamping blocks A and B under its own gravity. At this time, the blade edge is stored between the fixed clamping blocks A and B, which avoids the situation where the blade edge rotates 180 degrees relative to the fixed clamping blocks A and B and presents an upward posture. This solves the problem of the blade presenting an upward posture and posing a safety hazard when the keel is not cut. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model when shearing light steel keel; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a front view schematic diagram of the present invention; In the diagram: 1-Fixing clamp A; 2-Fixing clamp B; 11-Pin; 12-Bevel; 13-Placement slot; 3-Blade; 31-Knife edge; 4-Handle; 41-Bevel mouth; 5-Metal base plate; 51-Screw; 6-Support plate; 52-Reinforcing diagonal bar A; 53-Reinforcing diagonal bar B; 7-Light steel keel. Detailed Implementation

[0014] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0015] like Figures 1 to 3 As shown.

[0016] This application discloses a light steel keel shearing device for a spray-cast composite wall, comprising: Fixed clamping blocks A1 and B2 are spaced apart. One end of each fixed clamping block A1 and B2 is fitted with a pin 11, and the other end of each fixed clamping block A1 and B2 is open.

[0017] The blade 3 is installed between the fixed clamping block A1 and the fixed clamping block B2, and the blade 3 is rotatably hinged to the pin 11.

[0018] One side of the blade 3 is the cutting edge 31; the other side of the blade 3 is the back of the blade, and a handle 4 made of hollow steel pipe is welded and fixed on the back of the blade.

[0019] The handle 4, which is close to the pin 11, has a beveled end 41; the fixed clamp A1 and fixed clamp B2, which have the pin 11, are both provided with beveled edges 12. When the beveled edges 12 and the beveled end 41 of the handle 4 are in contact, the handle 4 forms an angle α with the horizontal line, where α is less than ninety degrees.

[0020] When the beveled end 41 of the handle 4 contacts the beveled edge 12 at the end of the fixed clamping block A1 and the fixed clamping block B2, the blade 3 is in its fully open state. After the light steel keel 7 is inserted, the handle 4 rotates and presses down with the blade 3 to complete the cutting. Then, the handle 4 rotates and lifts up with the blade 3 until the beveled end 41 contacts the beveled edge 12 at the end of the fixed clamping block A1 and the fixed clamping block B2, and the light steel keel 7 is removed and cut. In the state where the light steel keel 7 is not being cut, since the angle α between the handle 4 and the horizontal line is less than 90 degrees, the handle 4 rotates and presses down with the blade 3 under its own weight and closes between the fixed clamping blocks A1 and B2. At this time, the blade edge 31 of the blade 3 is stored between the fixed clamping blocks A1 and B2, which avoids the situation where the blade edge 31 of the blade 3 rotates 180 degrees relative to the fixed clamping blocks A1 and B2 and presents an upward posture. This solves the problem that the blade will present an upward posture when the keel is not being cut, which poses a safety hazard.

[0021] The bottom edges of the fixed clamping blocks A1 and B2 are welded and fixed to the metal base plate 5. The four corners of the metal base plate 5 are fixedly connected to the wooden support plates 6 by screws 51. When in use, the operator steps on the support plates 6 located below the suspended end of the handle 4 to operate.

[0022] Both the fixing clamps A1 and B2 are reinforced and fixed to the metal base plate 5 by reinforcing diagonal braces A52 and B53. Both the fixing clamps A1 and B2 are provided with placement grooves 13 for the C-shaped edges of the light steel keel 7 to extend into. The reinforcing diagonal brace A52 is located between the placement groove 13 and the pin 11, and the reinforcing diagonal brace B53 is located between the two placement grooves 13. The reinforcing diagonal braces A52 and B53 can provide reinforced support for the fixing clamps A1 and B2 when shearing the two C-shaped edges of the light steel keel 7.

Claims

1. A light steel keel shearing device for spray-cast composite walls, characterized in that, include: Fixed clamping blocks A(1) and B(2) are both in a fixed state, and fixed clamping blocks A(1) and B(2) are distributed at intervals; One end of the fixed clamping block A (1) and the fixed clamping block B (2) is fitted with a pin (11), and the other end of the fixed clamping block A (1) and the fixed clamping block B (2) is open. A blade (3) is installed between the fixed clamping block A (1) and the fixed clamping block B (2), and the blade (3) is rotatably hinged to the pin (11); The blade (3) has a cutting edge (31) on one side and a back on the other side, with a handle (4) fixed on the back. The handle (4) with the pin (11) has a beveled end (41) at the end; the fixed clamp A (1) and fixed clamp B (2) with the pin (11) are both provided with beveled edges (12). When the beveled edge (12) and the beveled end (41) of the handle (4) come into contact, the handle (4) forms an angle α with the horizontal line, where α is less than ninety degrees.

2. The light steel keel shearing device for spray-cast composite walls as described in claim 1, characterized in that: The handle (4) is made of hollow steel pipe.

3. The light steel keel shearing device for spray-cast composite walls as described in claim 1, characterized in that: The bottom edges of the fixed clamping block A (1) and the fixed clamping block B (2) are fixed to the metal base plate (5); the four corners of the metal base plate (5) are fixedly connected to the support plate (6) by screws (51).

4. The light steel keel shearing device for spray-cast composite walls as described in claim 3, characterized in that: The support plate (6) is made of wood.

5. The light steel keel shearing device for spray-cast composite walls as described in claim 1, characterized in that: Both the fixed clamping block A (1) and the fixed clamping block B (2) are reinforced and fixed to the metal base plate (5) by the reinforcing diagonal bar A (52) and the reinforcing diagonal bar B (53).

6. The light steel keel shearing device for spray-cast composite walls as described in claim 5, characterized in that: Both the fixed clamping block A (1) and the fixed clamping block B (2) are provided with placement grooves (13) for the C-shaped edge of the light steel keel to extend into and be placed. The reinforcing diagonal bar A (52) is located between the placement groove (13) and the pin (11), and the reinforcing diagonal bar B (53) is located between the two placement grooves (13).

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