Fastener capable of being rapidly installed

Abstract

The utility model relates to the field of fasteners, in particular to a quickly-mounted fastener, which comprises a fastening threaded rod used for connecting different objects to enhance fastening performance, and a mounting nut arranged at the top of the fastening threaded rod. The device is provided with the outer expansion threaded sleeve, the limiting gasket, the contraction threaded sleeve, the first reinforcing gasket and the second reinforcing gasket, the outer expansion threaded sleeve is directly arranged outside the fastening threaded rod in a sleeving mode, manual fixing is not needed, and after the device is inserted into a connected object, the fastening threaded rod continuously twists, so that the fastening threaded rod is not prone to loosening. The contraction threaded sleeve rotates upwards on the outer expansion threaded sleeve and then abuts against the lower portion of the inner abutting groove, along with continuous extrusion of the contraction threaded sleeve, the inner abutting groove contracts towards the inner limiting groove and the limiting gasket, and the outer portion of the outer expansion threaded sleeve expands in a wrinkled mode and is inserted into a connected object to complete fastening work. And then the first reinforcing gasket and the second reinforcing gasket are in butt joint in a staggered mode, and rapid installation work of the fastener is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the fastener field, concretely relates to a fastener of quick installation. BACKGROUND

[0002] Fasteners are mechanical elements used to connect and secure two or more objects, and are usually achieved through threaded connections or frictional connections. Common fasteners include bolts, nuts, screws, studs, pins, washers, and spring washers. They are widely used in industries such as energy, electronics, automobiles, aerospace, mechanical manufacturing, electronic equipment, furniture, and construction. The main function is to fix, connect, or transfer force to maintain the stability and safe operation of equipment. The selection of fasteners needs to consider multiple factors such as required connection strength, anti-loosening ability, corrosion resistance, temperature, and environmental conditions. Fasteners have various specifications, different performance and use, and high degree of standardization, serialization, and generalization. Therefore, in engineering design, it is crucial to select and use appropriate fasteners correctly to ensure safety and performance.

[0003] After searching, a fastener with strong fastening performance (CN208900506U) is disclosed, which specifically discloses a fastener with strong fastening performance, including a screw rod and a nut. The screw rod includes a first screw rod and a second screw rod, the second screw rod is fixedly arranged at the end of the first screw rod, the first screw rod is provided with the nut at the top, the first screw rod and the second screw rod are both provided with threads, the first screw rod is externally attached with an elastic ring, the first screw rod is provided with a through hole at the bottom, the nut is provided with a cross recess on the upper surface, and the nut, the first screw rod, and the second screw rod are all coated with an oxidation-resistant coating. The utility model can improve the traditional fastening device, which is easy to separate with the vibration of mechanical work, affecting production, and even causing major accidents.

[0004] The existing fastener is used to connect and secure two or more objects during use. In order to ensure the fastening of the connection during installation, other pin sleeves or reinforcing washers need to be installed on the outside of the fastener to enhance the fastening. However, the installation of other pin sleeves and reinforcing washers requires the assembly of the pin sleeve and reinforcing washer with the fastener from the outside, which undoubtedly delays the time efficiency of fastening installation. Moreover, the above-mentioned case lacks a means for quickly installing the fastener. In order to ensure the connection of the fastener, the fastener and the same size pin sleeve and reinforcing washer need to be assembled manually in advance, which increases the labor intensity of workers and delays the overall installation time.

[0005] Therefore, it is necessary to invent a fastener for quick installation to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of fastened fasteners of installation, by outer expansion sleeve, limiting washer, shrink sleeve, first reinforcing washer and second reinforcing washer, outer expansion sleeve realizes the fastened fastener fast installation work, so as to avoid the tedious operation that fastened fastener and same size pin sleeve and reinforcing washer are assembled in advance by artificial, reduce the labor intensity of worker, let the integrated installation of the device, meet the purpose of fast installation, improve the overall installation timeliness effect, to solve the fastened fastener in prior art in use process, since fastened fastener is used to connect and fix two or more objects Mechanical element, when connecting installation, to guarantee the fastening of connection, other pin sleeve or reinforcing washer is needed to be installed on the outside of fastened fastener to strengthen fastening, but other pin sleeve and reinforcing washer are installed, so pin sleeve and reinforcing washer are assembled with fastened fastener from outside, which undoubtedly delays fastened fastener fast installation timeliness, and there is also lack of means for fastened fastener fast installation in the above-mentioned proportion case, long-term use to guarantee the connection of fastened fastener, so it needs to be assembled in advance by artificial fastened fastener and same size pin sleeve and reinforcing washer, which increases the labor intensity of worker, also delays the overall installation timeliness problem.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of fastened fastener of installation, including fastening threaded rod, for connecting different objects to strengthen fastening;

[0008] Mounting nut is arranged at the top of fastening threaded rod, for worker to tighten fastening threaded rod, and the outside of fastening threaded rod is provided with outer expansion sleeve, the inside of outer expansion sleeve is provided with inner abutment groove, the top of inner abutment groove is provided with inner limiting groove, the inside of inner limiting groove is movably connected with limiting washer, and the lower of inner abutment groove is provided with shrink sleeve.

[0009] First reinforcing washer is arranged at the outside of fastening threaded rod, for strengthening the anti-skid ability of fastened fastener, and the surface of first reinforcing washer is provided with first engagement thread, and the upper of first reinforcing washer is movably connected with second reinforcing washer, and the bottom of second reinforcing washer is fixedly installed with second engagement thread.

[0010] Preferably, the outer expansion sleeve is movably connected with the fastening threaded rod, and the mounting nut is vertically distributed with the fastening threaded rod.

[0011] Preferably, the shrink sleeve is movably connected with the fastening threaded rod, and the center line of the shrink sleeve is consistent with the center line of the fastening threaded rod.

[0012] Preferably, the number of the first engagement thread is twelve, and the twelve first engagement threads are annularly arrayed on the first reinforcing washer.

[0013] Preferably, the surface of the mounting nut is provided with a cross interface groove, and a cross interface block is movably connected in the cross interface groove, and a hexagonal auxiliary nut is fixedly installed at one end of the cross interface block, and a positioning screw pin penetrates the hexagonal auxiliary nut.

[0014] Preferably, the cross interface block fixedly installed at the bottom of the hexagonal auxiliary nut is clamped and connected with the cross interface groove provided on the surface of the mounting nut, and the cross interface block and the cross interface groove are used in cooperation.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0016] 1. The utility model provides with outer expansion sleeve, spacing washer, contraction sleeve, first reinforcing washer and second reinforcing washer, the outer expansion sleeve is directly set up in the outside of fastening screw rod, and does not need manual fixing, after the device is inserted into the inside of connecting object, with the continuous twisting of fastening screw rod, the contraction sleeve rotates upwards in the outer expansion sleeve, and then abuts against the below of inner abutting groove, with the continuous extrusion of contraction sleeve, the inner abutting groove shrinks the inside spacing groove and spacing washer, the outside of outer expansion sleeve is wrinkled and expands into the inside of connecting object, and completes fastening work, then the first reinforcing washer and the second reinforcing washer are misaligned and connected, and the fastener quick installation work is completed, so that the complicated operation of previously assembling fastener, pin sleeve and reinforcing washer of the same size by hand is avoided, the labor intensity of workers is reduced, the device is integrally installed, the purpose of quick installation is met, and the overall installation efficiency is improved.

[0017] 2. The utility model provides with fastening screw rod, mounting nut, cross interface groove, cross interface block, hexagonal auxiliary nut and positioning screw pin, when two objects are connected and fixed by using the device, the installation method and the used tool are different for different objects, the cross tool can be directly twisted to complete the connection of different objects according to the currently used tool, the hexagonal auxiliary nut can be inserted into the cross interface groove and the cross interface block on the mounting nut, and the fastener is twisted by using wrench, so that the use range of the device is expanded, the structure is simple, workers can quickly install, and the installation efficiency is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the external expansion sleeve structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the shrink sleeve structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the second reinforcing gasket structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the hexagonal auxiliary nut structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fastening threaded rod; 2. Mounting nut; 3. External expansion sleeve; 4. Inner contact groove; 5. Inner limiting groove; 6. Limiting washer; 7. Contraction sleeve; 8. First reinforcing washer; 9. First engaging thread; 10. Second reinforcing washer; 11. Second engaging thread; 12. Cross joint groove; 13. Cross joint block; 14. Hexagonal auxiliary nut; 15. Positioning pin. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figures 1-5 The fastener shown includes a fastening threaded rod 1 for connecting different objects to enhance the fastening effect;

[0028] The mounting nut 2 is set on the top of the fastening threaded rod 1 for workers to tighten the fastening threaded rod 1. The fastening threaded rod 1 is provided with an outer expansion sleeve 3. The outer expansion sleeve 3 has an inner contact groove 4 inside. An inner limit groove 5 is provided above the inner contact groove 4. A limit washer 6 is movably connected inside the inner limit groove 5. A shrink sleeve 7 is provided below the inner contact groove 4.

[0029] The first reinforcing washer 8 is disposed on the outside of the fastening threaded rod 1 to enhance the anti-slip ability of the fastener. The surface of the first reinforcing washer 8 is provided with a first engaging thread 9. The second reinforcing washer 10 is movably connected above the first reinforcing washer 8. The bottom of the second reinforcing washer 10 is fixedly installed with a second engaging thread 11. As the shrinking sleeve 7 is continuously squeezed, the inner contact groove 4 shrinks into the inner limiting groove 5 and the limiting washer 6. The outer expansion sleeve 3 expands in a pleated manner and inserts into the interior of the connected object to complete the fastening work. Then, the first reinforcing washer 8 and the second reinforcing washer 10 are misaligned and connected to complete the fastener's quick installation.

[0030] As Figure 1 , Figure 2 and Figure 3 shown, the outer expansion sleeve 3 is movably connected with the fastening threaded rod 1, the mounting nut 2 is vertically distributed with the fastening threaded rod 1, the outer expansion sleeve 3 is used to assist the fastening threaded rod 1, and the fixing and fastening ability of the fastening threaded rod 1 in the object is strengthened, the contraction sleeve 7 is movably connected with the fastening threaded rod 1, the center line of the contraction sleeve 7 coincides with the center line of the fastening threaded rod 1, the contraction sleeve 7 is rotated upwardly with the outer expansion sleeve 3, and then abuts against the lower portion of the inner abutting groove 4, with the continuous extrusion of the contraction sleeve 7, the inner abutting groove 4 is contracted toward the limiting groove 5 and the limiting washer 6, and the outer portion of the outer expansion sleeve 3 is wrinkled and expanded to insert into the interior of the connected object to complete the fastening work, the number of the first meshing threads 9 is set to twelve, and the twelve first meshing threads 9 are annularly and arrayedly distributed on the first reinforcing washer 8, the first meshing threads 9 and the second meshing threads 11 are meshed with each other upwardly and downwardly, so that the fastener enhances the anti-vibration and anti-coming-off ability after being fixed.

[0031] As Figure 1 , Figure 4 and Figure 5 shown, the surface of the mounting nut 2 is provided with the cross-shaped abutting groove 12, the cross-shaped abutting groove 12 is movably connected with the cross-shaped abutting block 13, one end of the cross-shaped abutting block 13 is fixedly installed with the hexagonal auxiliary nut 14, the upper portion of the hexagonal auxiliary nut 14 is penetrated through with the positioning screw pin 15, the tool with the cross-shaped mouth can be used to directly tighten the fastener to complete the connection of different objects according to the currently used tool, the hexagonal auxiliary nut 14 can also be inserted into the cross-shaped abutting groove 12 and the cross-shaped abutting block 13 on the mounting nut 2, and the tightening of the fastener can be completed by using the wrench, the cross-shaped abutting block 13 fixedly installed at the bottom of the hexagonal auxiliary nut 14 is clamped and connected with the cross-shaped abutting groove 12 provided on the surface of the mounting nut 2, the cross-shaped abutting block 13 is used in cooperation with the cross-shaped abutting groove 12, the hexagonal auxiliary nut 14 not only expands the use range of the whole device, but also has a simple structure and is convenient for workers to quickly install, and the installation time is not delayed.

[0032] The utility model discloses a fastener, which comprises a fastening threaded rod, a fastening nut, a first reinforcing washer, a second reinforcing washer, a first engaging thread, a second engaging thread, a contraction screw sleeve, an inner abutting groove, an inner limiting groove, an outer expansion screw sleeve, an outer limiting washer, a hexagonal auxiliary nut, a cross joint groove and a cross joint block.

[0033] The utility model discloses a fastener, which comprises a fastening threaded rod, a fastening nut, a first reinforcing washer, a second reinforcing washer, a first engaging thread, a second engaging thread, a contraction screw sleeve, an inner abutting groove, an inner limiting groove, an outer expansion screw sleeve, an outer limiting washer, a hexagonal auxiliary nut, a cross joint groove and a cross joint block. The utility model discloses a fastener, which comprises a fastening threaded rod, a fastening nut, a first reinforcing washer, a second reinforcing washer, a first engaging thread, a second engaging thread, a contraction screw sleeve, an inner abutting groove, an inner limiting groove, an outer expansion screw sleeve, an outer limiting washer, a hexagonal auxiliary nut, a cross joint groove and a cross joint block.

Claims

1. A quick-installation fastener, characterized in that: include Fastening threaded rod (1) is used to connect different objects and strengthen the fastening; The mounting nut (2) is set on the top of the fastening threaded rod (1) for workers to tighten the fastening threaded rod (1). An external expansion sleeve (3) is provided on the outside of the fastening threaded rod (1). An internal contact groove (4) is provided inside the external expansion sleeve (3). An internal limiting groove (5) is provided above the internal contact groove (4). A limiting washer (6) is movably connected inside the internal limiting groove (5). A shrinking sleeve (7) is provided below the internal contact groove (4). The first reinforcing washer (8) is disposed on the outside of the fastening threaded rod (1) to enhance the anti-slip ability of the fastener. The surface of the first reinforcing washer (8) is provided with a first engaging thread (9). A second reinforcing washer (10) is movably connected above the first reinforcing washer (8). A second engaging thread (11) is fixedly installed at the bottom of the second reinforcing washer (10).

2. The quick-installation fastener according to claim 1, characterized in that: The external expansion sleeve (3) is movably connected to the fastening threaded rod (1), and the mounting nut (2) is perpendicular to the fastening threaded rod (1).

3. The quick-installation fastener according to claim 1, characterized in that: The shrink sleeve (7) is movably connected to the fastening threaded rod (1), and the center line of the shrink sleeve (7) coincides with the center line of the fastening threaded rod (1).

4. The quick-installation fastener according to claim 1, characterized in that: The number of the first engagement threads (9) is set to twelve, and the twelve first engagement threads (9) are distributed in a ring array on the first reinforcing gasket (8).

5. A quick-installation fastener according to claim 1, characterized in that: The surface of the mounting nut (2) is provided with a cross-shaped mating groove (12), and a cross-shaped mating block (13) is movably connected inside the cross-shaped mating groove (12). A hexagonal auxiliary nut (14) is fixedly installed at one end of the cross-shaped mating block (13), and a positioning pin (15) passes through the top of the hexagonal auxiliary nut (14).

6. A quick-installation fastener according to claim 5, characterized in that: The cross-shaped mating block (13) fixedly installed at the bottom of the hexagonal auxiliary nut (14) engages with the cross-shaped mating groove (12) opened on the surface of the mounting nut (2), and the cross-shaped mating block (13) and the cross-shaped mating groove (12) are used together.

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