CN203441929U - Connection nut - Google Patents

Abstract

A conjoined nut, the conjoined nut is a combination of a nut body and a bowl-shaped gasket, the nut body is inserted into the bowl-shaped gasket, and the nut body is provided with a retaining ring to prevent the bowl-shaped gasket from detaching . The nut body is a whole casted by the nut end, the casing section and the connecting hemisphere. The bowl-shaped gasket includes a bowl-shaped connecting shell and a backing plate. The retaining ring is a steel ring and is set on the casing section. A groove is formed between the protruding ring and the lower protruding ring, and the bottom of the retaining ring is cushioned with a blocking piece, and the blocking piece is a circular ring with an opening. In the utility model, the nut and the washer are in the form of a conjoined body, and the washer and the nut are connected as a whole through the retaining plate and the retaining ring, which avoids the loss of parts caused by the separation of the nut and the washer and the cumbersome pairing in the construction process . And during installation, you only need to lightly tap the screw on the nut body with a hammer to tighten it. The construction efficiency is high, the operation is convenient, the efficiency of assembly and disassembly can be greatly improved, and it can be widely used in formwork installation projects.

Description

A conjoined nut

technical field

The utility model relates to a nut, in particular to a conjoined nut.

Background technique

As an important part of the formwork, the fastness of the installation of the wall-through bolt connection device directly affects the efficiency of the entire construction process. The traditional nuts and washers are separated, and a large number of nuts are used in the formwork fixing. If With the traditional separated type, it takes a lot of energy to find the pairing of nuts and gaskets during construction, which is laborious and laborious, and the construction efficiency is low, and the separated nuts and gaskets are easy to be lost during removal, storage or transportation. , does not meet the requirements of energy conservation and environmental protection. In addition, the commonly used nut form is tightened by a wrench during the fastening process, and the strength is not easy to control. In view of this, the utility model provides a unique nut and washer form to realize the connection of the nut and the washer.

Utility model content

The purpose of the utility model is to provide a one-piece nut, which solves the technical problems that the existing split nut and gasket are easy to lose, time-consuming matching, and low construction efficiency.

In order to achieve the above object, the utility adopts the following technical solutions:

A conjoined nut, the conjoined nut is a combination of a nut body and a bowl-shaped washer, the nut body is inserted into the bowl-shaped washer, and the nut body is provided with a retaining ring to prevent the bowl-shaped washer from detaching .

The nut body is an integral body formed by the nut end, the casing section and the connecting hemisphere. The nut end is located on the top of the casing section. The inner diameters of the two are equal and coaxial. The inner wall of the cavity has continuous threads. The bottom surface of the end head extends outwards and rolls upwards to form a twisting handle. The connecting hemisphere is sleeved on the outer wall of the top of the sleeve section, and the top surface of the connecting hemisphere is closely attached to the bottom surface of the screwing hand. There are upper convex rings spaced from top to bottom on the outer circumference of the bottom of the casing section. and the lower convex ring, a groove is formed between the upper convex ring and the lower convex ring, and the outer diameter of the upper convex ring is larger than that of the lower convex ring.

The bowl-shaped spacer includes a bowl-shaped connection shell and a pad plate body. The pad plate body is a bowl edge of the bowl-shaped connection shell that extends outwards to form a rectangular plane. The maximum outer diameter of the hemisphere is the same as the insertion hole, and the shape of the outer wall of the bowl-shaped connecting shell is completely consistent with the connecting hemisphere.

Arc-shaped ribs are arranged at intervals between the bowl-shaped connecting shell and the pad, and the arc-shaped ribs are attached to the outer surface of the bowl-shaped connecting shell.

The retaining ring is a steel ring, which is set in the groove formed between the upper convex ring and the lower convex ring of the casing section, and its inner diameter is smaller than the outer diameter of the upper convex ring.

The bottom of the retaining ring is cushioned with a baffle, and the baffle is a circular ring with an opening, and the inner diameter of the baffle is equal to the outer diameter of the casing section.

The transverse end surface of the nut end is hexagonal or circular.

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

In the utility model, the nut and the gasket adopt the form of a conjoined body, and the gasket and the nut are connected as a whole through the retaining piece and the retaining ring, which avoids the loss of parts caused by the separation of the nut and the gasket and the cumbersome matching problems during the construction process. .

The gasket of the utility model adopts a bowl-shaped form, which is different from the traditional sheet form. This structural form is stuck on the back of the formwork and bears reasonable force, is not easy to deform and loose, and saves materials.

The conjoined nut of the utility model can be tightened only by lightly tapping the screw on the nut body with a hammer during installation. The construction efficiency is high, the operation is convenient, and the assembly and disassembly efficiency can be greatly improved.

The one-piece nut described in the utility model has a simple structure, is simple to manufacture, is economical and applicable, and can be widely used in formwork installation projects. the

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Figure 1 is a detailed view of the nut body.

FIG. 2 is a sectional view of FIG. 1 .

Figure 3 is a detailed view of the bowl gasket.

FIG. 4 is a sectional view of FIG. 3 .

Figure 5 is a detailed view of the retaining ring.

Figure 6 is a detailed view of the flap.

Fig. 7 is a detailed view of the connecting nut.

FIG. 8 is a sectional view of FIG. 7 .

Reference signs: 1-nut body, 1.1-nut end, 1.2-sleeve section, 1.3-upper flange, 1.4-connecting hemisphere, 1.5-lower flange, 1.6-twist, 1.7-internal thread, 2-bowl Shaped gasket, 2.1-pad plate body, 2.2-bowl-shaped connecting shell, 2.3-curved rib, 3-block, 3.1-raised handle, 3.2-connecting hole, 4-retaining ring.

Detailed ways

The embodiment is shown in Fig. 7 and Fig. 8, a conjoined nut, the conjoined nut is a combination of a nut body 1 and a bowl-shaped washer 2, the nut body 1 is inserted into the bowl-shaped washer 2, the The nut body 1 is provided with a retaining ring 4 for preventing the bowl-shaped gasket 2 from detaching.

Referring to Fig. 1 and Fig. 2, the nut body 1 is an integral body formed by a nut end 1.1, a casing section 1.2 and a connecting hemisphere 1.4. The nut end 1.1 is located on the top of the casing section 1.2, and both have equal inner diameters and are coaxial , the inner wall of the cavity has a continuous thread, the bottom surface of the nut end 1.1 extends outwards and rolls up to form a screw 1.6, the connecting hemisphere 1.4 is set on the outer wall of the top of the casing section 1.2, and the top surface of the connecting hemisphere 1.4 and the screw 1.6 The bottom surface is tightly attached, and the outer circumference of the bottom of the casing section 1.2 is spaced from top to bottom with an upper convex ring 1.3 and a lower convex ring 1.5, a groove is formed between the upper convex ring 1.3 and the lower convex ring 1.5, and the upper convex ring 1.3 The outer diameter is larger than the outer diameter of the lower convex ring 1.5.

Referring to Fig. 3 and Fig. 4, the bowl-shaped gasket 2 includes a bowl-shaped connection shell 2.2 and a pad plate body 2.1. The center of the top surface of the bowl-shaped connection shell 2.2 is provided with an insertion hole having the same diameter as the maximum outer diameter of the connection hemisphere 1.4, and the shape of the outer wall of the bowl-shaped connection shell 2.2 is completely consistent with the connection hemisphere 1.4.

Arc-shaped ribs 2.3 are arranged at intervals between the bowl-shaped connecting shell 2.2 and the backing plate body 2.1, and the arc surface of the arc-shaped ribs 2.3 is attached to the outer surface of the bowl-shaped connecting shell 2.2.

The retaining ring 4 is a steel ring, which is set in a groove formed between the upper collar 1.3 and the lower collar 1.5 of the casing section 1.2, and its inner diameter is smaller than the outer diameter of the upper collar 1.3, see FIG. 5 .

The bottom of the retaining ring 4 is padded with a stopper 3, the stopper 3 is a circular ring with an opening, and the inner diameter of the stopper 3 is equal to the outer diameter of the casing section 1.2, see FIG. 6 .

The transverse end surface of the nut end 1.1 is hexagonal or circular.

Connection process: Insert the nut body 1 into the insertion hole on the top of the bowl-shaped connection shell 2.2, insert the retaining ring 4 from the bottom of the casing section 1.2 into the upper groove part, and then break the snap ring opening of the retainer 3, and then insert In the groove, the position is under the retaining ring 4.

Use process: Insert the bolt into the cavity of the nut body 1, stick the bottom surface of the plate body 2.1 of the bowl-shaped gasket 2 on the back corrugation, and then lightly tap the screw on the nut body 1 with a hammer to realize the connection of the connected nut Tighten.

Claims (7)

1. A conjoined nut, characterized in that: the conjoined nut is a combination of a nut body (1) and a bowl-shaped gasket (2), and the nut body (1) is inserted into a bowl-shaped gasket (2) Inside, the nut body (1) is provided with a retaining ring (4) to prevent the bowl-shaped gasket (2) from detaching. 2. The conjoined nut according to claim 1, characterized in that: the nut body (1) is a whole casted by the nut end (1.1), the casing section (1.2) and the connecting hemisphere (1.4), and the The nut end (1.1) is located on the top of the casing section (1.2), the inner diameters of the two are equal and coaxial, and the inner wall of the cavity has continuous threads, and the bottom surface of the nut end (1.1) extends outwards and rolls up to form a twister (1.6), the connecting hemisphere (1.4) is sleeved on the top outer wall of the casing section (1.2), the top surface of the connecting hemisphere (1.4) is closely attached to the bottom surface of the screwdriver (1.6), and the outer circumference of the bottom of the casing section (1.2) is from top to bottom There is an upper protruding ring (1.3) and a lower protruding ring (1.5) at the lower interval, a groove is formed between the upper protruding ring (1.3) and the lower protruding ring (1.5), and the outer diameter ratio of the upper protruding ring (1.3) is The outer diameter of the lower convex ring (1.5) is large. 3. The conjoined nut according to claim 1, characterized in that: the bowl-shaped gasket (2) includes a bowl-shaped connecting shell (2.2) and a backing plate body (2.1), and the backing plate body (2.1) The edge of the mouth of the bowl-shaped connection shell (2.2) extends outwards into a rectangular plane, and the center of the top surface of the bowl-shaped connection shell (2.2) has an insertion hole with the same diameter as the maximum outer diameter of the connection hemisphere (1.4), The shape of the outer wall of the bowl-shaped connecting shell (2.2) is completely consistent with the connecting hemisphere (1.4). 4. The conjoined nut according to claim 3, characterized in that: arc-shaped ribs (2.3) are arranged at intervals between the bowl-shaped connecting shell (2.2) and the backing plate body (2.1), and the arc-shaped ribs (2.3) The arc surface of the rib plate (2.3) is attached to the shell outer surface of the bowl-shaped connecting shell (2.2). 5. The conjoined nut according to claim 3, characterized in that: the retaining ring (4) is a steel ring, sleeved on the upper collar (1.3) and the lower collar (1.5) of the casing section (1.2) In the groove formed between them, its inner diameter is smaller than the outer diameter of the upper convex ring (1.3). 6. The conjoined nut according to claim 5, characterized in that: the bottom of the retaining ring (4) is padded with a stopper (3), the stopper (3) is a circular ring with an opening, the stopper The inner diameter of the sheet (3) is equal to the outer diameter of the casing section (1.2). 7. The conjoined nut according to claim 5, characterized in that: the transverse end surface of the nut end (1.1) is hexagonal or circular.

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