CN217029602U

CN217029602U - Reverse locking anti-drop's fastener structure

Info

Publication number: CN217029602U
Application number: CN202220782491.XU
Authority: CN
Inventors: 钟德洲; 尹述彬; 尹小红; 尹继勇
Original assignee: Suzhou Jinding Fastener Co ltd
Current assignee: Suzhou Jinding Fastener Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-07-22
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a reverse locking anti-falling fastener structure, which belongs to the field of fasteners and comprises a bolt, wherein external threads are fixedly connected to the outer surface of the bolt, a clamping groove is formed in the bolt between gaps of the external threads, a first clamping ring and a second clamping ring are respectively sleeved on the outer surface of the bolt, internal threads are respectively fixedly connected to the inner surfaces of the first clamping ring and the second clamping ring, a locking mechanism is arranged on the top surface of the internal threads, a connecting block and a clamping block are respectively fixedly connected to the two ends of the second clamping ring, and a positioning mechanism is arranged on the end surface of the first clamping ring. This fastener structure can reverse locking, avoids the bolt gyration to guaranteed the fastening state, feasible fastening can go on lastingly, and then hidden danger when having avoided concrete application, and can relieve the fastener of reverse locking, shortened the dismantlement time simultaneously.

Description

Reverse locking anti-drop's fastener structure

Technical Field

The utility model relates to the field of fasteners, in particular to a reverse locking anti-falling fastener structure.

Background

The fastener, it is a mechanical basic member used for fastening and connecting and applied extremely extensively, its characteristic is that the variety specification is various, the performance uses are different, and the degree of standardization, serialization and universalization is also extremely high, therefore, also somebody's turn to have a kind of fastener of national standard called standard fastener, or simply called standard member;

general fastener on the market does not have the function of reverse locking for the fastener easily revolves, thereby has removed the fastening state, influences the durability of fastening, and then has brought the hidden danger for concrete application, and the dismounting method of general fastener is not applicable to the fastener of reverse locking, thereby makes the fastener can't be demolishd, and general dismounting method is consuming time longer simultaneously, has brought structural defect's problem, for this reason, we propose a reverse locking anti-drop's fastener structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reverse locking anti-falling fastener structure, which aims to solve the problems that the common fastener provided in the background technology does not have a reverse locking function, so that the fastener is easy to rotate, the fastening state is relieved, the fastening durability is influenced, and hidden dangers are brought to specific application, the dismounting method of the common fastener is not suitable for the reverse locking fastener, so that the fastener cannot be dismounted, and meanwhile, the time consumption of the common dismounting method is long, and the structural defects are brought.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a reverse locking anti-drop's fastener structure, includes the bolt, the surface rigid coupling of bolt has the external screw thread, the draw-in groove has been seted up on the bolt between the external screw thread clearance, and the surface of bolt is equipped with snap ring one and snap ring two respectively, the internal surface rigid coupling of snap ring one and snap ring two has the internal thread respectively, locking mechanism is installed to the internal thread top surface, and the both ends of snap ring two respectively the rigid coupling have link up piece and fixture block, install positioning mechanism on the terminal surface of snap ring one.

Preferably, the connecting block is hinged to one end of the first clamping ring, the clamping block is embedded and sleeved with the other end of the first clamping ring, the internal thread is meshed with the external thread, and a groove is formed in the top surface of the internal thread.

Preferably, locking mechanism includes the pivot, the pivot rotates with the lateral wall of recess to be connected, and the external fixed surface of pivot has cup jointed the kelly, install the spring between the bottom surface of kelly and recess, and the top surface contact of kelly is connected with the baffle.

Preferably, the kelly is the arc setting, and the kelly cup joints with the draw-in groove gomphosis, the lateral wall rigid coupling of baffle and recess, the internal thread passes through the gyration of kelly, baffle and draw-in groove restriction bolt.

Preferably, the positioning mechanism comprises a movable plate, a bolt is fixedly connected to the end face of the movable plate, a clamping strip is fixedly connected to the outer surface of the bolt, and a threaded sleeve is sleeved between the clamping strip and the movable plate.

Preferably, the clamping strip is respectively embedded and sleeved with the clamping block and the clamping ring, and the threaded sleeve is slidably sleeved with the plug pin.

Preferably, the outer surface of the threaded sleeve is meshed and sleeved with the side wall of the first clamping ring, and the first clamping ring is used for positioning the bolt through the threaded sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

the fastening piece structure extrudes the clamping rod on the internal thread through the outer surface of the bolt, so that the clamping rod is contracted into the groove, when the bolt completes primary fastening, the clamping rod is positioned at the clamping groove, so that the constraint of the bolt on the clamping rod is relieved, the clamping rod resets under the resilience of the spring and is finally clamped with the clamping groove, when the bolt has a tendency of reverse rotation, the clamping groove on the bolt drives the clamping rod to rotate upwards, the top surface of the clamping rod is in contact with the baffle, the baffle limits the upward movement of the clamping rod, so that the reverse rotation of the clamping groove and the bolt is limited, the purpose of reverse locking is achieved, the rotation of the bolt is avoided, the fastening state is ensured, the fastening can be carried out for a long time, and the hidden danger during specific application is avoided;

this fastener structure drives the bolt through the movable plate and inserts snap ring one, and run through the fixture block, rotate the thread bush on the bolt again, make the rotatory meshing of thread bush to the snap ring in, thereby make the thread bush block the retrodisplacement of card strip, and then avoid the bolt to break away from snap ring one, make fixture block and snap ring one fixed, reach snap ring one and the closed purpose of snap ring two, when the fastening of fastener is relieved to needs, only need reverse repetition above-mentioned operation, make snap ring one and snap ring two open, can relieve the fastening of fastener, the takedown time has been shortened simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the portion A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a positioning mechanism of the present invention;

fig. 4 is a schematic diagram of a fixture block structure according to the present invention.

In the figure: 1. a bolt; 2. a card slot; 3. a first snap ring; 4. a second snap ring; 5. an internal thread; 6. a joining block; 7. a locking mechanism; 71. a rotating shaft; 72. a clamping rod; 73. a spring; 74. a baffle plate; 8. a clamping block; 9. a positioning mechanism; 91. moving the plate; 92. a bolt; 93. clamping the strip; 94. and (4) a threaded sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-2 and fig. 4, the present invention provides a technical solution: a reverse locking anti-drop fastener structure comprises a bolt 1, wherein external threads are fixedly connected to the outer surface of the bolt 1, a clamping groove 2 is formed in the bolt 1 between gaps of the external threads, a first snap ring 3 and a second snap ring 4 are respectively sleeved on the outer surface of the bolt 1 in a sleeved mode, internal threads 5 are respectively fixedly connected to the inner surfaces of the first snap ring 3 and the second snap ring 4, a locking mechanism 7 is installed on the top surface of the internal threads 5, two ends of the second snap ring 4 are respectively fixedly connected with a connecting block 6 and a clamping block 8, a positioning mechanism 9 is installed on the end surface of the first snap ring 3, the connecting block 6 is hinged to one end of the first snap ring 3, the clamping block 8 is in embedded and sleeved with the other end of the first snap ring 3, the internal threads 5 are in meshed connection with the external threads, a groove is formed in the top surface of the internal threads 5, the locking mechanism 7 comprises a rotating shaft 71, the rotating shaft 71 is rotatably connected with the side wall of the groove, and a clamping rod 72 is fixedly sleeved on the outer surface of the rotating shaft 71, install spring 73 between the bottom surface of kelly 72 and recess, and the top surface contact of kelly 72 is connected with baffle 74, and kelly 72 is the arc setting, and kelly 72 cup joints with draw-in groove 2 gomphosis, and baffle 74 and the lateral wall rigid coupling of recess, internal thread 5 pass through kelly 72, baffle 74 and draw-in groove 2 restriction bolt 1's gyration.

Specifically, in the process of using the fastener, the bolt 1 is rotated to a position between the first snap ring 3 and the second snap ring 4, and the external thread on the bolt 1 is meshed with the internal thread 5 to achieve the purpose of primary fastening, in the process, as the bolt 1 rotates forwards, the clamping rod 72 on the internal thread 5 is extruded by the outer surface of the bolt 1, so that the clamping rod 72 rotates in the groove through the rotating shaft 71, so that the clamping rod 72 contracts into the groove, after the bolt 1 completes primary fastening, the clamping rod 72 is located at the clamping groove 2, so that the constraint of the bolt 1 on the clamping rod 72 is relieved, the clamping rod 72 resets under the resilience of the spring 73 and is finally clamped with the clamping groove 2, when the bolt 1 has a tendency of reverse rotation, the clamping groove 2 on the bolt 1 drives the clamping rod 72 to rotate upwards, the top surface of the clamping rod 72 is contacted with the baffle 74, so that the baffle 74 limits the upward movement of the clamping rod 72, thereby restricted draw-in groove 2 and bolt 1's antiport, reached the purpose of reverse locking, avoided bolt 1 gyration to guaranteed the fastening state, makeed the fastening can go on lastingly, and then hidden danger when having avoided concrete application.

Example 2:

referring to fig. 1 and fig. 3-4, the present invention provides a technical solution: a reverse locking anti-drop's fastener structure, positioning mechanism 9 includes movable plate 91, the rigid coupling has bolt 92 on the terminal surface of movable plate 91, the surface rigid coupling of bolt 92 has a card strip 93, the cover is equipped with threaded bush 94 between card strip 93 and the movable plate 91, card strip 93 cup joints with fixture block 8 and the gomphosis of snap ring 3 respectively, threaded bush 94 cup joints with bolt 92 slides, the surface of threaded bush 94 cup joints with the lateral wall meshing of snap ring 3, snap ring 3 passes through threaded bush 94 location bolt 92.

Specifically, in the process of closing the first snap ring 3 and the second snap ring 4, the clamping block 8 on the second snap ring 4 is inserted into the first snap ring 3, the pin 92 is driven to be inserted into the first snap ring 3 through the moving plate 91, the clamping block 8 is penetrated, the threaded sleeve 94 on the pin 92 is rotated, the threaded sleeve 94 is rotatably meshed into the first snap ring 3, the threaded sleeve 94 is enabled to block the backward movement of the clamping strip 93, the pin 92 is prevented from being separated from the first snap ring 3, the clamping block 8 is fixed with the first snap ring 3, the purpose of closing the first snap ring 3 and the second snap ring 4 is achieved, when the fastening of the fastening piece needs to be relieved, the operations are repeated in the reverse direction, the first snap ring 3 and the second snap ring 4 are opened, the fastening of the fastening piece can be relieved, and the disassembling time is shortened.

The working principle is as follows: when a fastener is needed, the bolt 1 is rotated to a position between the first snap ring 3 and the second snap ring 4, the external thread on the bolt 1 is meshed with the internal thread 5, and the purpose of primary fastening is achieved, in the process, along with the forward rotation of the bolt 1, the clamping rod 72 on the internal thread 5 is extruded by the external surface of the bolt 1, so that the clamping rod 72 rotates in the groove through the rotating shaft 71, the clamping rod 72 is contracted into the groove, after the bolt 1 completes the primary fastening, the clamping rod 72 is located at the clamping groove 2, so that the constraint of the bolt 1 on the clamping rod 72 is relieved, the clamping rod 72 resets under the resilience of the spring 73 and is finally clamped with the clamping groove 2, when the bolt 1 has a tendency of reverse rotation, the clamping groove 2 on the bolt 1 drives the clamping rod 72 to rotate upwards, the top surface of the clamping rod 72 is contacted with the baffle 74, so that the baffle 74 limits the upward movement of the clamping rod 72, thereby limiting the reverse rotation of the clamping groove 2 and the bolt 1, achieving the purpose of reverse locking, avoiding the rotation of the bolt 1, thereby ensuring the fastening state, enabling the fastening to be carried out durably, further avoiding the hidden trouble in the specific application, and in the process of closing the first clamping ring 3 and the second clamping ring 4, inserting the clamping block 8 on the second clamping ring 4 into the first clamping ring 3, simultaneously driving the bolt 92 to be inserted into the first clamping ring 3 through the moving plate 91 and penetrating through the clamping block 8, then rotating the threaded sleeve 94 on the bolt 92, enabling the threaded sleeve 94 to be rotatably meshed into the first clamping ring 3, further enabling the threaded sleeve 94 to block the backward movement of the clamping strip 93, further avoiding the bolt 92 from being separated from the first clamping ring 3, enabling the clamping block 8 and the first clamping ring 3 to be fixed, achieving the purpose of closing the first clamping ring 3 and the second clamping ring 4, when the fastening of the fastener needs to be relieved, only needing to reversely repeat the above operations, enabling the first clamping ring 3 and the second clamping ring 4 to be opened, the fastening of the fastener can be released, and the disassembly time is shortened to complete the operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a reverse locking anti-drop's fastener structure, includes bolt (1), its characterized in that: the surface rigid coupling of bolt (1) has the external screw thread, draw-in groove (2) have been seted up on bolt (1) between the external screw thread clearance, and the surface of bolt (1) is overlapped respectively and is equipped with snap ring (3) and snap ring two (4), the internal surface rigid coupling respectively of snap ring (3) and snap ring two (4) has internal thread (5), locking mechanism (7) are installed to the top surface of internal thread (5), and the both ends of snap ring two (4) rigid coupling respectively have linking piece (6) and fixture block (8), install positioning mechanism (9) on the terminal surface of snap ring (3).

2. The reverse locking anti-drop fastener structure according to claim 1, characterized in that: the connecting block (6) is hinged to one end of the first clamping ring (3), the clamping block (8) is embedded and sleeved with the other end of the first clamping ring (3), the internal thread (5) is meshed with the external thread, and a groove is formed in the top surface of the internal thread (5).

3. The reverse locking anti-drop fastener structure according to claim 1, wherein: locking mechanism (7) are including pivot (71), pivot (71) rotate with the lateral wall of recess and are connected, and the external fixed surface of pivot (71) has cup jointed kelly (72), install spring (73) between the bottom surface of kelly (72) and recess, and the top surface contact of kelly (72) is connected with baffle (74).

4. The reverse locking anti-drop fastener structure according to claim 3, characterized in that: the clamping rod (72) is arranged in an arc shape, the clamping rod (72) is connected with the clamping groove (2) in a sleeved mode in an embedded mode, the baffle (74) is fixedly connected with the side wall of the groove, and the internal threads (5) limit rotation of the bolt (1) through the clamping rod (72), the baffle (74) and the clamping groove (2).

5. The reverse locking anti-drop fastener structure according to claim 1, wherein: positioning mechanism (9) are including movable plate (91), the rigid coupling has bolt (92) on the terminal surface of movable plate (91), the surface rigid coupling of bolt (92) has card strip (93), the cover is equipped with thread bush (94) between card strip (93) and movable plate (91).

6. The reverse locking anti-drop fastener structure according to claim 5, characterized in that: the clamping strip (93) is respectively embedded and sleeved with the clamping block (8) and the first clamping ring (3), and the threaded sleeve (94) is in sliding sleeve connection with the bolt (92).

7. The reverse locking anti-drop fastener structure according to claim 5, wherein: the outer surface of the threaded sleeve (94) is meshed and sleeved with the side wall of the first clamping ring (3), and the first clamping ring (3) is provided with a positioning bolt (92) through the threaded sleeve (94).