CN108105225B - A crank-slider type connection fastener and connection method - Google Patents

Abstract

The present invention provides a kind of crank block type securing members, it mainly include bar structure and locking mechanism, bar structure includes the thread segment being sequentially connected, slide bar section and head, and the thread segment is connected with pre-buried micelle, and internal screw thread compatible with thread segment is offered in micelle；The head of bar structure is protruded into locking mechanism, is connected with locking mechanism.The present invention also provides a kind of board material vertical connection methods.The invention has the benefit that device of the present invention locks member structure by the dead-centre position of crank link mechanism, locking effect is good, and connection fastening strength is high；Fastener cycle is connected without tools such as gimlets, connection and removal efficiency are high manually.

Description

A crank-slider type connection fastener and connection method

technical field

The invention relates to a connection fastener, in particular to a crank-slider type connection fastener and a connection method.

Background technique

The three-in-one connecting rod is composed of an eccentric wheel, a connecting rod and a non-slip pre-embedded rubber compound. It is mainly used for the connection of panel furniture, especially the vertical connection between the panels of panel furniture or the interactive connection of three panels, without screws. Realize the connection and tightening of the two boards. The eccentric wheel is the most important connecting accessory in the three-in-one link piece. The three-in-one link piece specifically uses the radian of the torsion angle at the bottom of the eccentric wheel that deviates from the center of the circle, and then rotates the cross screw groove of the eccentric wheel through the screw cone. The connecting rod stuck in the arc will be pulled toward the center of the eccentric wheel along the arc, so that the connecting rod can tighten the distance between the eccentric wheel and the anti-skid embedded rubber particles, so that the connection between the plate and the plate is tightened. When the screw cone rotates the cross groove of the eccentric wheel, the connecting plate drives the body of the eccentric wheel to rotate. However, due to the large and uneven torque on the eccentric, it is easy to cause the eccentric to break. In addition, the eccentric wheel of the three-in-one connecting rod used on the market has a complex structure, and is mainly made of zinc alloy with die-casting process, which has always had the phenomenon of insufficient strength and short service life; The requirements for molds are also high, the manufacturing process is complex, the manufacturing efficiency is low, and the production cost is high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-strength, low-cost crank-slider type connecting fastener and a connecting method in view of the deficiencies of the prior art.

The technical scheme adopted in the present invention is: a crank-slider type connection fastener, which mainly includes a rod body structure and a locking structure, and the rod body structure includes a threaded section, a sliding rod section and a head that are connected in sequence, and the threaded section is connected with a pre- The buried rubber particles are connected, and the rubber particles are provided with internal threads which are adapted to the thread segments; the head of the rod body structure extends into the locking structure and is connected with the locking structure.

According to the above scheme, the locking structure includes a base, a crank piece, a connecting rod piece and a rotating handle. The crank piece, the connecting rod piece and the rotating handle are all arranged in the base. The base and the crank piece, the crank piece and the connecting rod piece, are connected The rod and the rotating handle are respectively connected by pins; the base is provided with a notch, and the head of the rod structure can pass through the notch and extend into the base; the connecting rod is provided with a bayonet and a bayonet slot , the head of the rod structure can pass through the bayonet; the bayonet slot is adapted to the pin shaft connecting the base and the crank member.

According to the above solution, the base includes a circular bottom plate and an arc-shaped side plate axially extending from the edge of the bottom plate, the notch is provided on the arc-shaped side plate, and the arc-shaped side plate is provided with a pin hole A, so The head of the rod body structure can pass through the slot; the crank member is a U-shaped structure, including a main plate body and two auxiliary plate bodies respectively located at both ends of the main plate body, and a pin shaft hole B is opened along the length direction of the auxiliary plate body. and pin hole C; the connecting rod is a U-shaped structure, and the connecting rod includes a main clamping plate and a secondary clamping plate at both ends of the main clamping plate, the bayonet is provided on the main clamping plate, and the clamping groove is provided on the auxiliary card plate; the auxiliary card plate is respectively provided with a pin shaft hole D and a pin shaft hole E; the rotating handle includes a body located outside the base, and the front end of the body is an arc segment that matches the inner wall of the arc-shaped side plate , the rear end of the body is symmetrically extended with bosses on both sides, and the bosses are arranged in the base; the boss is provided with a pin shaft hole F; the pin shaft hole A and the pin shaft hole B pass through the pin shaft A, Connect the base and the crank member; the pin shaft C and the pin shaft hole D pass through the pin shaft B, and connect the crank member and the connecting rod member; the pin shaft hole E and the pin shaft hole F pass through the pin shaft C, Connect the link piece and turn the handle.

According to the above scheme, the crank member, the connecting rod member and the base are all formed by punching and bending of sheet metal respectively.

The present invention also provides a method for vertical connection of plates, comprising the following steps:

Step 1, providing the connecting fastener according to claim 3;

Step 2: Pre-embed the rubber particles in the plane holes of the wooden board A, and screw the threaded section of the rod body structure into the internal thread of the rubber particles;

Step 3, put the base of the locking structure into the end hole of the wooden board B, insert the rod structure into the base and make the head of the rod structure pass through the notch of the base;

Step 4: Push the rotating handle to rotate the crank member and the connecting rod member by a certain angle, so that the head of the rod body structure passes through the bayonet of the connecting rod member;

Step 5. Push the rotating handle to rotate the crank piece clockwise around the pin A, the bayonet of the connecting rod piece moves in the opposite direction to the rod body structure and pulls the rod body structure to move, when the crank piece rotates to its bottom and the bottom plate surface of the base When fitting, the slot of the connecting rod is locked on the pin A, and the rod body structure, connecting rod and crank member are locked, and the two wooden boards are tightened at the same time;

Step 6. Rotate the rotating handle counterclockwise by 90° and buckle it into the base to complete the fastening of the two boards.

The beneficial effects of the present invention are:

1. The device of the present invention locks the rod structure by means of the dead center position of the crank connecting rod mechanism, with good locking effect, high stability and high connection and fastening strength; the connection and fastening process does not require tools such as screw cones, and manual connection is required. and high disassembly efficiency;

2. After installation, the body of the rotating handle is located outside the end face of the board, which is convenient for operation and more labor-saving;

3. The key components are made of sheet metal punching and bending, the production process is simple, the efficiency is high, and the cost is low; the base structure is simple, the strength is high, the production efficiency is high, and the cost is low;

4. The device of the present invention has reasonable structure design, simple and fast operation, good feasibility and high reliability.

Description of drawings

FIG. 1 is an exploded schematic diagram of a specific embodiment of the present invention.

FIG. 2 is a first structural schematic diagram of this embodiment.

FIG. 3 is a second structural schematic diagram of this embodiment.

FIG. 4 is a third structural schematic diagram of this embodiment.

FIG. 5 is a fourth schematic structural diagram of this embodiment.

FIG. 6 is a schematic diagram 1 of the connection state of the board body A and the board body B. FIG.

FIG. 7 is a second schematic diagram of the connection state of the board body A and the board body B. FIG.

FIG. 8 is a schematic structural diagram of the base in this embodiment.

FIG. 9 is a schematic structural diagram of the crank member in this embodiment.

FIG. 10 is a schematic structural diagram of the connecting rod in this embodiment

FIG. 11 is a schematic structural diagram of the rotating handle in this embodiment.

FIG. 12 is a schematic structural diagram of the rod body structure in this embodiment.

FIG. 13 is a schematic structural diagram of the colloidal particles in this example.

Among them: 1. rubber particles; 2. rod body structure; 2.1, thread section; 2.2, sliding rod section; 2.3, head;

3. base; 3.1, bottom plate; 3.2, arc side plate; 3.3, notch; 3.4, pin hole A;

4. Pin shaft A; 5. Connecting rod parts; 5.1, main card plate; 5.2, auxiliary card plate; 5.3, pin shaft hole D; 5.4, pin shaft hole E; 5.5, card slot; 5.6, bayonet; 6, Rotating handle; 6.1, body; 6.2, boss; 6.3, pin hole F; 7, pin B; 8, crank piece; 8.1, main body; 8.2, auxiliary plate body; 8.3, pin hole B; 8.4, Pin hole C; 9, wood A; 10, wood B.

Detailed ways

For a better understanding of the present invention, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 5, a crank-slider type connection fastener mainly includes a rod body structure 2 and a locking structure. As shown in Figure 12, the rod body structure 2 includes a threaded section 2.1 and a sliding rod section that are connected in sequence. 2.2 and head 2.3, the thread section 2.1 is connected with the pre-embedded rubber particles 1, and the rubber particle 1 is provided with an internal thread that matches the thread section 2.1 (as shown in Figure 13); the head of the rod structure 2 2.3 Extend into the locking structure and connect with the locking structure.

In the present invention, the locking structure includes a base 3, a crank member 8, a connecting rod member 5, a rotating handle 6, a pin shaft A4, a pin shaft B7 and a short shaft; the crank member 8, the connecting rod member 5 and the rotating handle 6 are installed in the base 3, the base 3 is connected with the crank member 8 through the pin shaft A, the crank member 8 is connected with the connecting rod member 5 through the pin shaft B, and the connecting rod member 5 is connected with the rotating handle 6 through the pin shaft C; The base 3 is provided with a slot 3.3, and the head 2.3 of the rod body structure 2 can pass through the slot 3.3 and extend into the interior of the base 3; the connecting rod 5 is provided with a bayonet 5.6 and a bayonet slot 5.5, the rod body structure 1 The head can pass through the bayonet 5.6; the bayonet slot 5.5 is adapted to the pin A.

As shown in FIG. 8 , the base 3 includes a circular bottom plate 3.1 and an arc-shaped side plate 3.2 axially extending from the edge of the bottom plate 3.1. The slot 3.3 is formed on the arc-shaped side plate 3.2, and the arc-shaped side plate 3.2 There are also two pin holes A3.4 on the top, and the head 1.3 of the rod structure 1 can pass through the notch 3.3 and extend into the base 3; the two pin holes A3.4 are symmetrical with the notch 3.3 as the center distribution; as shown in Figure 9, the crank member 8 is a U-shaped structure, including a main body 8.1 and two auxiliary plate bodies 8.2 located at both ends of the main plate body 8.1, and a pin shaft hole is opened along the length direction of the auxiliary plate body 8.2 B8.3 and pin shaft hole C8.4; as shown in Figure 10, the connecting rod member 5 is a U-shaped structure, and the connecting rod member 5 includes a main clamping plate 5.1 and auxiliary clamping plates 5.2 located at both ends of the main clamping plate 5.1, The bayonet 5.6 is set on the main card board 5.1, and the bayonet 5.6 is matched with the slide bar section 2.2; the bayonet slot 5.6 is set on the auxiliary board 5.2, and the auxiliary board 5.2 is respectively provided with a pin shaft hole D5. 3 and the pin shaft hole E5.4; as shown in Figure 11, the rotating handle 6 includes a body 6.1 located outside the base 3, the rear end of the body 6.1 symmetrically extends downward on both sides with a boss 6.2, the boss 6.2 is located on the base 3, the boss 6.2 is provided with a pin shaft hole F6.3; the pin shaft A4 passes through the pin shaft hole A3.4 and the pin shaft hole B8.3 in turn, connecting the base 3 and the crank member 8; the pin shaft B7 passes through the pin shaft hole C8.4 and the pin shaft hole D5.3 in sequence to connect the crank member 8 and the connecting rod member 5; the short shaft passes through the pin shaft hole E5.4 and the pin shaft hole F6.3 in sequence to connect Link member 5 and rotating handle 6.

The key components in the present invention, such as the crank member 8, the connecting rod member 5 and the base 3, etc., are all formed by punching and bending of sheet metal.

The present invention takes the connection of the mutually perpendicular wooden boards A9 and B10 as an example to describe the connection method, as shown in FIG. 6 and FIG. 7 .

A method for vertical connection of plates, specifically comprising the following steps:

Step 1. Provide the connecting fasteners as described above;

Step 2: Pre-embed the rubber particle 1 in the plane hole of the wooden board A9, and screw the thread section 2.1 of the rod body structure 2 into the inner thread of the rubber particle 1;

Step 3. Put the base 3 of the locking structure into the end hole of the wooden board B10 (the body 6.1 of the rotating handle 6 protrudes from the end hole of the wooden board B10), insert the rod structure 2 into the base 3 and make the head of the rod structure 2 The part 2.3 passes through the slot 3.3 of the base 3;

Step 4. Push the rotating handle 6 to rotate the crank member 8 and the connecting rod member 5 by a certain angle, so that the head of the rod body structure 2 passes through the bayonet 5.6 of the connecting rod member 5;

Step 5. Push the body 6.1 of the rotating handle 6 to make the crank member 8 rotate clockwise around the pin A4. At this time, the bayonet 2.3 of the connecting rod member 5 moves in the opposite direction to the rod body structure 2 and pulls the sliding rod segment 2.2 to move. When the crank member 8 is rotated until its bottom is in contact with the bottom plate 3.1 of the base 3, the slot 5.5 of the connecting rod member 5 is locked on the pin A4, and the rod structure 2, the connecting rod member 5 and the crank member are locked. The crank-slider mechanism composed of The crank member 8 and the connecting rod member 5 rotate, the rod body structure 2, the connecting rod member 5 and the crank member 8 are completely connected and locked, and at the same time the two wooden boards are tensioned;

Step 6: Rotate the rotating handle 6 counterclockwise by 90° and buckle it into the base 3 to complete the fastening of the two wooden boards.

When disassembling, pull out the handle 6, pull the handle 6 perpendicular to the direction of the board B, and drive the crank member 8 and the connecting rod member 5 to rotate, so that the slot 5.5 of the connecting rod member 5 is released from the overhead shaft A4, and the connecting rod member 5 rotates clockwise. The head 2.3 of the rod structure 2 can be disengaged from the bayonet 5.6 of the link member 5, and the connection can be disassembled by moving the wooden board A9.

The above are only preferred embodiments of the present invention, and are not intended to be limiting. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still understand the descriptions in the foregoing embodiments. Modifications to the technical solutions, or equivalent replacement of some of the technical features thereof, shall be included within the protection scope of the present invention.

Claims (4)

1. a kind of crank block type securing member, which is characterized in that mainly include bar structure and locking mechanism, bar structure Including thread segment, slide bar section and the head being sequentially connected, the thread segment is connected with pre-buried micelle, offers in micelle and spiral shell The compatible internal screw thread of line section；The head of bar structure is protruded into locking mechanism, is connected with locking mechanism；The locking mechanism packet Pedestal, crank element, link member and rotational handle are included, crank element, link member and rotational handle are set in pedestal, pedestal and crank Part, crank element and link member, link member and rotational handle are connected by pin shaft respectively；Notch, bar are offered on the pedestal The head of body structure may pass through notch, protrude into pedestal；Bayonet and card slot, the head of bar structure are offered on the link member It may pass through bayonet；The card slot pin shaft connected with pedestal and crank element is adapted.

2. crank block type securing member as described in claim 1, which is characterized in that the pedestal includes circular bottom plate And the arc side plate axially extending from bottom plate edge, the notch are set on arc side plate, arc side plate is equipped with pin shaft hole The head of A, the bar structure may pass through notch；The crank element is U-shaped structure, including mainboard body and is located at mainboard body Two subplate bodies at both ends, offer pin shaft hole B and pin shaft hole C along the length direction of subplate body；The link member is U-shaped knot Structure, link member include main card plate and the vice card plate positioned at main card board ends, and the bayonet is set on main card plate, and the card slot is set to On vice card plate；Pin shaft hole D and pin shaft hole E are offered on vice card plate respectively；The rotational handle includes the sheet positioned at base exterior The front end of body, ontology is segmental arc compatible with arc side plate inner wall, and the rear end sides of ontology have symmetrically extended downwardly boss, convex Platform is located in pedestal, and pin shaft hole F is offered on boss；Pin shaft A is passed through in the pin shaft hole A and pin shaft hole B, connects pedestal and song Shank member；Pin shaft B, connecting crank part and link member are passed through in the pin shaft hole C and pin shaft hole D；The pin shaft hole E and pin shaft hole F It is interior to pass through pin shaft C, connect link member and rotational handle.

3. crank block type securing member as described in claim 1, which is characterized in that the crank element, link member and bottom Seat is respectively adopted sheet metal blanking bending and forms.

4. a kind of board material vertical connection method, which comprises the following steps:

Step 1: providing securing member as claimed in claim 3；

Step 2: the thread segment of bar structure, is screwed in the internal screw thread of micelle by the pre-buried micelle in the plane hole of plank A；

Step 3: being put into the pedestal of locking mechanism in the end-face hole of plank B, by bar structure inserted base and make bar structure Head pass through pedestal notch；

Step 4: pushing rotational handle, crank element and link member are turned an angle, the head of bar structure is made to pass through connecting rod The bayonet of part；

Step 5: pushing rotational handle, rotate clockwise crank element around pin shaft A, the bayonet of link member is to the anti-of bar structure To moving and pull body of rod structure motion, when crank element, which turns to its bottom, to be bonded with the bottom plate plate face of pedestal, link member Card slot is stuck on pin shaft A and locks, and locks bar structure, link member and crank element, while two pieces of planks are tightened up；

Step 6: rotational handle is rotated by 90 ° counterclockwise, buckle into pedestal, completes the fastening of two pieces of planks.