New mechanical anchor

Abstract

The utility model belongs to the field of mechanical technology, and relates to a new type of mechanical anchor bolt. It includes a locking nut and a rod-shaped body, the upper end of the body is an upper connecting section with an external thread, the locking nut is sleeved on the upper connecting section and the two are threadedly connected, and also includes a cylindrical extrusion cylinder and a deformation cylinder, the lower end of the body has a protruding expansion portion, the extrusion cylinder and the deformation cylinder are both sleeved on the body, the upper end of the extrusion cylinder abuts against the locking nut, and the deformation cylinder is located between the lower end of the extrusion cylinder and the expansion portion. Compared with the prior art, the expansion portion squeezes the lower deformation petal to form the main positioning and connection part of the anchor bolt, ensuring that the entire anchor bolt can be stably connected to the corresponding hole, and the connection stability is relatively high.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a novel mechanical anchor bolt. Background Art

[0002] Expansion anchor bolts utilize the relative movement of the cone and the expansion piece (or expansion sleeve) to cause the expansion piece to expand, generate expansion and extrusion force with the hole wall concrete, and generate pull-out force through shear friction to achieve anchoring of the connected parts.

[0003] Existing expansion anchor bolts usually include a rod-shaped body and a cylinder sleeved outside the body, the lower end of the body has an expansion portion, and the lower end of the cylinder has an expandable expansion flap. When the lower end of the cylinder gradually contacts the expansion portion under the action of external force, the expansion flap will gradually open and abut against the inner wall of the hole, ultimately ensuring a stable connection between the anchor bolt and the hole.

[0004] However, the length of the cylinder in the existing expansion anchor is relatively large, resulting in a large consumption of cylinder material and increasing its cost.

[0005] Meanwhile, in the existing expansion anchor, a deformation notch is provided at the end of the cylinder, so that the cylinder is displaced greatly during the tightening operation, and after deformation, the tightening is mainly achieved by the deformation part at the expansion part, and the connection stability is limited. Summary of the invention

[0006] The purpose of the utility model is to provide a new type of mechanical anchor bolt with high stability and compact structure in view of the above problems existing in the prior art.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A new type of mechanical anchor bolt comprises a locking nut and a rod-shaped body, the upper end of the body is an upper connecting section with an external thread, the locking nut is sleeved on the upper connecting section and the two are threadedly connected, and is characterized in that it also comprises a cylindrical extrusion cylinder and a deformation cylinder, the lower end of the body has a protruding expansion portion, the extrusion cylinder and the deformation cylinder are both sleeved on the body, the upper end of the extrusion cylinder abuts against the locking nut, and the deformation cylinder is located between the lower end of the extrusion cylinder and the expansion portion.

[0009] The novel mechanical anchor bolt creatively connects an extrusion tube and a deformation tube to the main body. During the tightening operation, the extrusion tube does not deform. The extrusion tube applies pressure to the upper end of the deformation tube, and the expansion part applies pressure to the lower end of the extrusion tube. Finally, both the upper and lower ends of the extrusion tube are stably deformed. The deformed deformation tube enables the entire mechanical anchor bolt end to be stably connected to the corresponding hole.

[0010] Of course, during the connection process of the mechanical anchor bolt, one end of the expansion portion is embedded in the corresponding connection hole, and external force is applied to rotate the locking nut.

[0011] In the above-mentioned novel mechanical anchor bolt, a gasket is sleeved on the body, the gasket is tightly pressed between the locking nut and the extrusion cylinder, and the gasket is in contact with the upper end surface of the extrusion cylinder.

[0012] Under the action of the gasket, the locking nut can be stably and indirectly connected to the upper end of the extrusion cylinder.

[0013] In the above-mentioned novel mechanical anchor bolt, the side of the deformation tube has a deformation notch extending from its end to the middle, the number of the deformation notches is several and the several deformation notches are evenly distributed on the side of the deformation tube in the circumferential direction.

[0014] When the deformation tube is squeezed by the external force of the extrusion tube, the upper end of the deformation tube can be stably deformed.

[0015] The lower end of the extrusion cylinder is provided with a smoothly transitioned introduction surface, under the action of the introduction surface, the extrusion cylinder can stably extrude the deformation cylinder.

[0016] The lead-in surface is the chamfer of the lower end of the extrusion cylinder. According to actual conditions, it is also feasible that the lead-in surface is the rounded corner of the lower end of the extrusion cylinder.

[0017] In the above-mentioned novel mechanical anchor bolt, a plurality of deformation notches uniformly distributed circumferentially at the upper end of the deformation tube form an upper deformation unit, and a plurality of deformation notches uniformly distributed circumferentially at the lower end of the deformation tube form a lower deformation unit.

[0018] Under the extrusion action of the lower end of the extrusion cylinder, the upper end of the deformation cylinder can be stably deformed by the plurality of upper deformation units.

[0019] In the above-mentioned novel mechanical anchor bolt, the middle part of the deformation tube has an annular protruding reinforcement part, the upper deformation unit extends to the upper part of the reinforcement part, and the lower deformation unit extends to the lower part of the reinforcement part.

[0020] Under the action of the reinforcement part, the strength of the deformation tube can be appropriately improved to avoid the deformation tube from being broken or damaged.

[0021] In the above-mentioned novel mechanical anchor bolt, the area between two adjacent deformation notches in the upper deformation unit is an upper deformation petal, and the outer side of the upper deformation petal has a protruding reinforcement edge.

[0022] Under the extrusion action of the extrusion cylinder, the upper deformation petal can be stably deformed. At the same time, under the action of the reinforcement edge, the strength of the upper deformation petal can be appropriately improved.

[0023] In the above-mentioned novel mechanical anchor bolt, the area between two adjacent deformation notches in the lower deformation unit is the lower deformation petal, and the outer side of the lower deformation petal has a protruding reinforcement edge.

[0024] The lower deformation flap can be stably deformed under the extrusion effect of the expansion part, and at the same time, the strength of the lower deformation flap can be appropriately improved under the effect of the reinforcement edge.

[0025] In the above-mentioned novel mechanical anchor bolt, the expansion portion is in the shape of a truncated cone.

[0026] In the above-mentioned novel mechanical anchor bolt, the length dimension of the upper deformation petal is smaller than the length dimension of the lower deformation petal.

[0027] The lower deformation petal serves as the main force of the anchor bolt, and the large blade head can make the entire anchor bolt firmly embedded in the concrete.

[0028] The upper deformation petal forms a barb after deformation, which can prevent the entire anchor bolt from displacement, and truly achieve no displacement when the anchor bolt is connected.

[0029] In the above-mentioned novel mechanical anchor bolt, the upper deformation petal, the lower deformation petal, the first reinforcement edge, the second reinforcement edge and the deformation cylinder are an integrated structure.

[0030] This appropriately improves the structural compactness of the entire anchor bolt.

[0031] Compared with the prior art, the upper deformation petal of the mechanical anchor bolt forms a barb under the action of the extrusion cylinder, ensuring that the anchor bolt will not be displaced during the connection process; the expansion part squeezes the lower deformation petal to form the main positioning connection part of the anchor bolt, ensuring that the entire anchor bolt can be stably connected to the corresponding hole, and its connection stability is relatively high.

[0032] At the same time, the extrusion cylinder and the deformation cylinder are both sleeved on the main body, so the structure is compact and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the main structure of the novel mechanical anchor bolt in its initial state.

[0034] Figure 2 It is a schematic diagram of the cross-sectional structure of the novel mechanical anchor bolt in its initial state.

[0035] Figure 3 It is a schematic diagram of the main structure of the novel mechanical anchor bolt in a connected state.

[0036] Figure 4 It is a schematic cross-sectional structure diagram of the novel mechanical anchor bolt in a connected state.

[0037] In the figure, 1, locking nut; 2, main body; 2a, upper connecting section; 2b, expansion part; 3, extrusion cylinder; 4, deformation cylinder; 4a, reinforcement part; 4b, upper deformation petal; 4b1, reinforcement edge one; 4c, lower deformation petal; 4c1, reinforcement edge two; 5, gasket. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0041] like Figure 1 and Figure 2 and Figure 3 and Figure 4 As shown, the new mechanical anchor bolt includes a locking nut 1 and a rod-shaped body 2, the upper end of the body 2 is an upper connecting section 2a with an external thread, the locking nut 1 is sleeved on the upper connecting section 2a and the two are threadedly connected, and also includes a cylindrical extrusion cylinder 3 and a deformation cylinder 4, the lower end of the body 2 has a protruding expansion portion 2b, the extrusion cylinder 3 and the deformation cylinder 4 are both sleeved on the body 2, the upper end of the extrusion cylinder 3 abuts against the locking nut 1, and the deformation cylinder 4 is located between the lower end of the extrusion cylinder 3 and the expansion portion 2b.

[0042] The main body 2 is sleeved with a gasket 5 , which is tightly pressed between the locking nut 1 and the extrusion cylinder 3 , and the gasket 5 is in contact with the upper end surface of the extrusion cylinder 3 .

[0043] The side of the deformation tube 4 has a deformation notch extending from the end to the middle thereof. The number of the deformation notches is several and the deformation notches are evenly distributed on the side of the deformation tube 4 in the circumferential direction.

[0044] A plurality of deformation notches uniformly distributed in the circumferential direction at the upper end of the deformation tube 4 form an upper deformation unit, and a plurality of deformation notches uniformly distributed in the circumferential direction at the lower end of the deformation tube 4 form a lower deformation unit.

[0045] The deformation tube 4 has an annular protruding reinforcement portion 4a in the middle, the upper deformation unit extends to the upper portion of the reinforcement portion 4a, and the lower deformation unit extends to the lower portion of the reinforcement portion 4a.

[0046] The area between two adjacent deformation notches in the upper deformation unit is an upper deformation petal 4b, and the outer side of the upper deformation petal 4b has a protruding reinforcement edge 4b1.

[0047] The area between two adjacent deformation notches in the lower deformation unit is a lower deformation petal 4c, and the outer side of the lower deformation petal 4c has a protruding reinforcement edge 4c1.

[0048] The expansion portion 2b is in the shape of a truncated cone.

[0049] The length dimension of the upper deformation petal 4b is smaller than the length dimension of the lower deformation petal 4c.

[0050] The upper deformation petal 4b, the lower deformation petal 4c, the reinforcement edge 1 4b1, the reinforcement edge 2 4c1 and the deformation cylinder 4 are an integrated structure.

[0051] The novel mechanical anchor bolt creatively connects an extrusion tube and a deformation tube to the main body. During the tightening operation, the extrusion tube does not deform. The extrusion tube applies pressure to the upper end of the deformation tube, and the expansion part applies pressure to the lower end of the extrusion tube. Finally, both the upper and lower ends of the extrusion tube are stably deformed. The deformed deformation tube enables the entire mechanical anchor bolt end to be stably connected to the corresponding hole.

[0052] Of course, during the connection process of the mechanical anchor bolt, one end of the expansion portion is embedded in the corresponding connection hole, and external force is applied to rotate the locking nut.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A novel mechanical anchor bolt, comprising a locking nut and a rod-shaped body, wherein the upper end of the body is an upper connecting section with an external thread, the locking nut is sleeved on the upper connecting section and the two are threadedly connected, characterized in that: It also includes a cylindrical extrusion cylinder and a deformation cylinder, the lower end of the body has a protruding expansion portion, the extrusion cylinder and the deformation cylinder are both sleeved on the body, the upper end of the extrusion cylinder abuts against the locking nut, and the deformation cylinder is located between the lower end of the extrusion cylinder and the expansion portion; A gasket is sleeved on the body, the gasket is tightly pressed between the locking nut and the extrusion cylinder, and the gasket is in contact with the upper end surface of the extrusion cylinder; The side of the deformation tube has a deformation notch extending from the end to the middle, and the number of the deformation notches is a plurality and the plurality of deformation notches are evenly distributed on the side of the deformation tube in the circumferential direction; A plurality of deformation notches uniformly distributed circumferentially at the upper end of the deformation tube form an upper deformation unit, and a plurality of deformation notches uniformly distributed circumferentially at the lower end of the deformation tube form a lower deformation unit; The middle part of the deformation tube has an annular protruding reinforcement part, the upper deformation unit extends to the upper part of the reinforcement part, and the lower deformation unit extends to the lower part of the reinforcement part; The area between two adjacent deformation notches in the upper deformation unit is an upper deformation petal, and the outer side of the upper deformation petal has a protruding reinforcement edge; The area between two adjacent deformation notches in the lower deformation unit is a lower deformation petal, and the outer side of the lower deformation petal has a protruding reinforcement edge.

2. The novel mechanical anchor bolt according to claim 1 is characterized in that: The expansion portion is in a truncated cone shape.

3. The novel mechanical anchor bolt according to claim 2 is characterized in that: The length dimension of the upper deformation petal is smaller than the length dimension of the lower deformation petal.

4. The novel mechanical anchor bolt according to claim 3 is characterized in that: The upper deformation petal, the lower deformation petal, the first reinforcement edge, the second reinforcement edge and the deformation cylinder are an integrated structure.

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