CN212536401U

CN212536401U - Check bolt assembly

Info

Publication number: CN212536401U
Application number: CN202020990962.7U
Authority: CN
Inventors: 来小弟
Original assignee: Haiyan Everbright Standard Parts Co ltd
Current assignee: Haiyan Everbright Standard Parts Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-02-12
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses a check bolt subassembly, including bolt, nut, first check washer and second check washer, from the top down is equipped with stage, screw thread section and open slot in proper order on the double-screw bolt of bolt, be equipped with the nut on the screw thread section, be equipped with first check washer on the stage, the center department of open slot is equipped with the blind hole that upwards extends, the bottom of nut is equipped with second check washer, second check washer fixed mounting is inside the blind hole, the bottom of second check washer still is equipped with the non return subassembly, compares with prior art, the utility model discloses simple structure, reasonable in design, assurance bolted connection's that can be long-time stability and reliability reduce the influence of vibration to bolted connection, are worth promoting.

Description

Check bolt assembly

[ technical field ] A method for producing a semiconductor device

The utility model relates to a fastener technical field, especially a check bolt subassembly.

[ background of the invention ]

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.

Among these, bolts are a common cylindrical threaded fastener with a nut. A fastener consisting of a head and a screw is matched with a nut and used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is screwed off from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection, and in the actual use process of the existing bolt, due to the vibration between the connecting pieces, the bolt is easy to loosen after being in service for a long time, the stability between the connecting pieces is influenced, and even the connecting pieces are loosened and fall off to cause casualties, so that a check bolt assembly is necessary.

[ Utility model ] content

The utility model discloses an aim at solving the problem among the prior art, provide a locking bolt subassembly, the utility model discloses simple structure, reasonable in design, assurance bolted connection's that can be long-time stability and reliability reduce the vibration to bolted connection's influence, are worth promoting.

In order to realize the above-mentioned purpose, the utility model provides a check bolt subassembly, including bolt, nut, first check washer and second check washer, from the top down is equipped with stage, screw thread section and open slot on the double-screw bolt of bolt in proper order, be equipped with the nut on the screw thread section, be equipped with first check washer on the stage, the center department of open slot is equipped with the blind hole that upwards extends, the bottom of nut is equipped with second check washer, second check washer fixed mounting is inside the blind hole, the bottom of second check washer still is equipped with the non return subassembly.

Preferably, the top of the bolt is provided with an auxiliary assembling and disassembling groove which is a regular hexagon groove, the lower half part of the bolt head is provided with a group of first grooves which are bilaterally symmetrical, and the bottom of the bolt head is provided with a first anti-skid tooth surface.

Preferably, a second anti-skid tooth surface is arranged on the top surface of the nut, a second groove is formed in the bottom surface of the nut, an expansion groove is formed in the bottom of the second groove, and internal threads are formed in the groove wall of the second groove.

As preferred, first locking gasket comprises a pair of bilateral symmetry's concatenation gasket, be equipped with half round sleeve on the upper surface of concatenation gasket, half round sleeve's inner wall is corresponding with the spiral shell head outer wall of bolt, it is protruding to be equipped with the first card of mutually supporting with first recess on half round sleeve's the inner wall, be equipped with the protruding and coordinate clamping groove of coordinate card on two concatenation gaskets's the opposite face, the bottom surface of concatenation gasket is equipped with the third anti-skidding flank of tooth, it is protruding still to be equipped with locking on the bottom surface of concatenation gasket, the bellied bottom outside of locking is equipped with the anti-loosening cover of integral type.

Preferably, the coordination clamping protrusion is a cylinder, a plurality of clamping rings which are uniformly distributed are arranged on the cylinder body of the coordination clamping protrusion, and an annular groove corresponding to the clamping rings is arranged on the inner groove wall of the coordination clamping groove.

Preferably, the center of the second anti-loosening gasket is provided with a limiting convex column matched with the blind hole, anti-skidding threads are arranged on the limiting convex column and the blind hole, connecting rods are arranged on the left side and the right side of the limiting convex column, the width of each connecting rod is slightly smaller than that of each open slot, and annular clamping pieces matched with the expansion slots are arranged at the outer ends of the connecting rods.

Preferably, the non-return assembly is an annular sheet, the non-return assembly is installed inside the second groove, the side wall of the non-return assembly is provided with an external thread, and the bottom of the non-return assembly is provided with a shifting block.

The utility model has the advantages that:

the utility model has simple structure and reasonable design, and the first anti-loosening gasket, the second anti-loosening gasket and the non-return assembly are firmly connected between the bolt and the nut and between the bolt and the connecting piece by the way of arranging the bolt, the nut, the first anti-loosening gasket, the second anti-loosening gasket and the non-return assembly, thereby reducing the possibility of loose bolt connection; the first anti-loosening gasket is firmly connected with the screw head of the bolt by arranging the first anti-loosening gasket with the anti-loosening sleeve, the coordination clamping protrusion and the coordination clamping groove, the first anti-loosening gasket cannot be separated from the bolt when the bolt is connected and bears vibration, the anti-loosening sleeve is clamped into the screw hole in the using process and is matched with the coordination clamping protrusion and the coordination clamping groove to absorb partial vibration, and the possibility of separating the first anti-loosening gasket from the bolt is further reduced; the mutual friction force between the connecting components is increased by arranging the nut with the anti-skidding tooth surface, the first anti-loosening gasket and the bolt; through the mode that sets up second locking gasket and non return subassembly, carry out spacing and chucking to the nut, the spacing projection of second locking gasket mutually supports with open slot and blind hole on the bolt double-screw bolt, outwards struts the double-screw bolt of opening slot portion for the unable downstream of nut has played the locking function, and the non return subassembly can prevent that second locking gasket from producing not hard up, has guaranteed the locking effect of second locking gasket.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a lock bolt assembly of the present invention.

Fig. 2 is a schematic structural view of a first anti-loose gasket in the anti-loose bolt assembly of the present invention.

Fig. 3 is a schematic structural view of a second anti-loose pad in the anti-loose bolt assembly of the present invention.

In the figure: 1-bolt, 11-auxiliary loading and unloading groove, 12-first groove, 13-first anti-slip tooth surface, 2-nut, 21-second anti-slip tooth surface, 22-second groove, 23-expansion groove, 3-first anti-loose gasket, 31-splicing gasket, 32-semicircular sleeve, 33-first clamping protrusion, 34-coordination clamping protrusion, 341-clamping ring and 35-coordination clamping groove, 351-annular groove, 36-third anti-slip tooth surface, 37-anti-loose bulge, 38-anti-loose sleeve, 4-second anti-loose gasket, 41-limiting convex column, 42-anti-slip thread, 43-connecting rod, 44-annular clamping piece, 5-stage, 6-threaded section, 7-open slot, 8-blind hole, 9-check component and 91-shifting block.

[ detailed description ] embodiments

Referring to the drawings, the utility model relates to a check bolt assembly, including bolt 1, nut 2, first check washer 3 and second check washer 4, from the top down is equipped with platform stage 5, screw thread section 6 and open slot 7 on the double-screw bolt of bolt 1 in proper order, be equipped with nut 2 on the screw thread section 6, be equipped with first check washer 3 on the platform stage 5, the center department of open slot 7 is equipped with the blind hole 8 that upwards extends, the bottom of nut 2 is equipped with

second check washer

4, 4 fixed mounting of second check washer are inside blind hole 8, the bottom of second check washer 4 still is equipped with non return subassembly 9.

The top of the bolt 1 is provided with an auxiliary loading and unloading groove 11, the auxiliary loading and unloading groove 11 is a regular hexagon groove, the lower half part of the head of the bolt 1 is provided with a group of first grooves 12 which are symmetrical left and right, and the bottom of the head of the bolt 1 is provided with a first anti-skid tooth surface 13.

The top surface of the nut 2 is provided with a second anti-skid tooth surface 21, the bottom surface of the nut 2 is provided with a second groove 22, the bottom of the second groove 22 is provided with an expansion groove 23, and the groove wall of the second groove 22 is provided with internal threads.

Wherein, first locking gasket 3 comprises a pair of bilateral symmetry's concatenation gasket 31, be equipped with semicircular sleeve 32 on the upper surface of concatenation gasket 31, semicircular sleeve 32's inner wall is corresponding with bolt 1's spiral shell head outer wall, be equipped with the first card protruding 33 of mutually supporting with first recess 12 on semicircular sleeve 32's the inner wall, be equipped with the protruding 34 of coordination card and coordination card groove 35 on two concatenation gaskets 31's the opposite face, the bottom surface of concatenation gasket 31 is equipped with third smooth tooth face 36 of prevention, still be equipped with locking arch 37 on the bottom surface of concatenation gasket 31, the bottom outside of locking arch 37 is equipped with integral type anti-loosening sleeve 38.

The coordination clamping protrusion 34 is a cylinder, a plurality of clamping rings 341 are uniformly distributed on the cylinder of the coordination clamping protrusion 34, and an annular groove 351 corresponding to the clamping rings 341 is formed in the inner groove wall of the coordination clamping groove 35.

Wherein, the center department of second locking gasket 4 is equipped with the spacing projection 41 with blind hole 8 matched with, all be equipped with anti-skidding line 42 on spacing projection 41 and the blind hole 8, the left and right sides of spacing projection 41 is equipped with connecting rod 43, the width of connecting rod 43 slightly is less than the width of open slot 7, connecting rod 43 outer end is equipped with the cyclic annular card 44 with inflation groove 23 matched with.

Wherein, non return subassembly 9 is the annular piece, non return subassembly 9 is installed inside second recess 22, be equipped with the external screw thread on non return subassembly 9's the lateral wall, non return subassembly 9's bottom is equipped with shifting block 91.

The utility model discloses a working process:

the utility model relates to a check bolt subassembly is in the course of the work, can be earlier with the first recess 12 of the protruding 33 alignment bolt 1 of first card on the concatenation gasket 31, then install two concatenation gaskets 31 in the stage 5 outside, then install bolt 1 and first check gasket 3 inside the connecting hole of connecting piece, then install the nut on bolt 1's screw thread section 6, install second check gasket 4 in blind hole 8 through open slot 7 for the cyclic annular card 44 of second check gasket 4 firmly the chucking is in expansion tank 23, install inside second recess 22 with non return subassembly 9 at last, accomplish bolt assembly's installation, compare with prior art, the utility model discloses simple structure, reasonable in design, through the mode that sets up bolt 1, nut 2, first check gasket 3, second check gasket 4 piece and non return subassembly 9, with first check gasket 2, The second anti-loose gasket 3 and the check assembly 9 firmly connect the bolt 1 and the nut 2 with the connecting piece, so that the possibility of loose connection of the bolt 1 is reduced; by arranging the first anti-loose gasket 3 with the anti-loose sleeve 38, the coordination clamping protrusion 34 and the coordination clamping groove 35, the first anti-loose gasket 3 is firmly connected with the screw head of the bolt 1, when the bolt is connected and bears vibration, the first anti-loose gasket 3 cannot be separated from the bolt 1, the anti-loose sleeve 38 is clamped into the screw hole in the using process and is matched with the coordination clamping protrusion 34 and the coordination clamping groove 35 to absorb partial vibration, and the possibility that the first anti-loose gasket 3 is separated from the bolt 1 is further reduced; the mutual friction force between the connecting components is increased by arranging the nut 2 with the anti-skid tooth surface, the first anti-loosening gasket 3 and the bolt 1; through the mode that sets up second locking gasket 4 and non return subassembly 9, carry out spacing and chucking to nut 2, open slot 7 and blind hole 8 on the spacing projection 41 of second locking gasket 4 and the bolt 1 double-screw bolt mutually support, outwards strut the double-screw bolt of open slot 7 portion for nut 2 can't the downstream, has played the locking function, and non return subassembly 9 can prevent that second locking gasket 4 from producing not hard up, has guaranteed the locking effect of second locking gasket 4.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. A check bolt assembly characterized in that: including bolt (1), nut (2), first check washer (3) and second check washer (4), from the top down is equipped with platform stage (5), screw thread section (6) and open slot (7) in proper order on the double-screw bolt of bolt (1), be equipped with nut (2) on screw thread section (6), be equipped with first check washer (3) on platform stage (5), the center department of open slot (7) is equipped with blind hole (8) that upwards extend, the bottom of nut (2) is equipped with second check washer (4), second check washer (4) fixed mounting is inside blind hole (8), the bottom of second check washer (4) still is equipped with non return subassembly (9).

2. A check bolt assembly as defined in claim 1, wherein: the top of bolt (1) is equipped with supplementary loading and unloading groove (11), supplementary loading and unloading groove (11) are the regular hexagon recess, the lower half of bolt (1) spiral shell head is equipped with a set of bilateral symmetry's first recess (12), the bottom of bolt (1) spiral shell head is equipped with first anti-skidding flank of tooth (13).

3. A check bolt assembly as defined in claim 1, wherein: the anti-skidding nut is characterized in that a second anti-skidding tooth surface (21) is arranged on the top surface of the nut (2), a second groove (22) is formed in the bottom surface of the nut (2), an expansion groove (23) is formed in the bottom of the second groove (22), and internal threads are formed in the groove wall of the second groove (22).

4. A check bolt assembly as defined in claim 1, wherein: first locking gasket (3) comprise a pair of bilateral symmetry's concatenation gasket (31), be equipped with semicircle sleeve (32) on the upper surface of concatenation gasket (31), the inner wall of semicircle sleeve (32) is corresponding with the spiral shell head outer wall of bolt (1), be equipped with on the inner wall of semicircle sleeve (32) and mutually support first card protruding (33) with first recess (12), be equipped with coordinate card protruding (34) and coordinate draw-in groove (35) on the opposite face of two concatenation gaskets (31), the bottom surface of concatenation gasket (31) is equipped with third anti-skidding flank of tooth (36), still be equipped with locking protruding (37) on the bottom surface of concatenation gasket (31), the bottom outside of locking protruding (37) is equipped with integral type anti-looseness cover (38).

5. A lockbolt assembly as claimed in claim 4, wherein: the coordination clamping protrusion (34) is a cylinder, a plurality of clamping rings (341) which are uniformly distributed are arranged on the cylinder of the coordination clamping protrusion (34), and an annular groove (351) corresponding to the clamping rings (341) is arranged on the inner groove wall of the coordination clamping groove (35).

6. A check bolt assembly as defined in claim 1, wherein: the center department of second locking gasket (4) is equipped with blind hole (8) matched with spacing projection (41), all be equipped with on spacing projection (41) and blind hole (8) anti-skidding line (42), the left and right sides of spacing projection (41) is equipped with connecting rod (43), the width of connecting rod (43) slightly is less than the width of open slot (7), connecting rod (43) outer end be equipped with expansion groove (23) matched with cyclic annular card (44).

7. A check bolt assembly as defined in claim 1, wherein: non return subassembly (9) are the annular piece, non return subassembly (9) are installed inside second recess (22), be equipped with the external screw thread on the lateral wall of non return subassembly (9), the bottom of non return subassembly (9) is equipped with shifting block (91).