CN109441930B

CN109441930B - Connection structure and be applied to this connection structure's bolt

Info

Publication number: CN109441930B
Application number: CN201811609231.7A
Authority: CN
Inventors: 黄国春
Original assignee: Shuyang Yunpu Industry And Trade Co ltd
Current assignee: Shuyang Yunpu Industry And Trade Co ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2024-03-01
Anticipated expiration: 2038-12-27
Also published as: CN109441930A

Abstract

The invention discloses a connecting structure and a bolt used in the connecting structure, comprising a first component and a second component which are mutually connected through the bolt, wherein the bolt comprises a bolt rod and a bolt seat, the end face of the first component is provided with a bulge, the side face of the second component connected with the first component is provided with a slot for inserting the bulge, the side face of the second component connected with the first component is provided with a placing groove for placing the bolt, at least one side of the side face of the second component is provided with the placing groove, one end of the placing groove is communicated with the slot in a crossing way, and the bulge of the first component is provided with a through hole for the bolt rod to pass through. The invention can be fixed through the bolt after the first part and the second part on the furniture are spliced and inserted, so that the complete assembly of the furniture can be realized without using tools and bare hands.

Description

Connection structure and be applied to this connection structure's bolt

Technical Field

The invention relates to a furniture connecting structure, in particular to a connecting structure and a bolt applying the same.

Background

Along with the improvement of living conditions, more and more household products are selected to be customized or assembled, but most of assembled products are inconvenient to assemble, and the assembly modes of the children's desk and chair sold and used in the market at present are all fixed by using metal screws or nails, and are also connected by using buckle bolts, for example, the metal screws or nails are used for a long time, and the exposed parts of the metal screws or nails are easy to cause injury to children users. In the prior art, tools such as screws are needed to be screwed and fixed by a spanner, and when the desk and the chair are fixed by the screws, the desk and the chair are inconvenient to assemble due to inconvenient connection structure, and the assembly and the disassembly are complex and laborious, so that the assembly and the disassembly are not suitable for children with manual operation capability to install.

In addition, existing tables and chairs, especially furniture such as tables and chairs used by children, are usually provided with natural wooden grains or patterns with colors and other decorations on the surfaces, and if the furniture is fixed through connecting structures such as screws or nails, holes are required to be punched at the connecting positions of all parts of the furniture, so that the integrity of the surface decoration of the furniture is damaged, and the appearance is affected.

Disclosure of Invention

In order to overcome the defects, the invention provides a connecting structure and a bolt applied to the connecting structure, and furniture such as a table and a chair can be simply assembled integrally.

The invention is realized by the following technical scheme:

the utility model provides a connection structure, includes part one and part two through bolt interconnect, the terminal surface of part one is equipped with the arch, is equipped with on the side that part two and part one are connected and supplies protruding male slot, still is equipped with the standing groove that is used for placing the bolt on the side that part two and part one are connected at least in one of them side that lies in part one, the bolt is restricted in the standing groove and can be in the standing groove towards protruding round trip movement, the one end and the slot of standing groove intersect the intercommunication, are equipped with the through-hole that supplies the bolt to pass on the arch of part one.

The utility model provides a socket, including standing groove, slot, the bolt, standing groove, the standing groove includes bolt pole and bolt pole groove, standing groove and slot connection's one end is located to first bolt pole groove, the front projection in first bolt pole groove coincides with the front projection of bolt pole, bolt pole and first bolt pole groove are detachable connection, and the bottom width in first bolt pole groove is greater than the width at its top, the width in bolt pole groove is not less than the diameter of bolt pole.

The side wall of the other side of the slot is provided with a jack for inserting the bolt rod relative to the bolt rod.

The side wall of the other side of the slot is provided with a second bolt seat groove corresponding to the first bolt seat groove, a detachable bolt seat is arranged in the second bolt seat groove, the front projection of the second bolt seat groove coincides with the front projection of the bolt seat, the width of the bottom of the second bolt seat groove is larger than that of the top of the second bolt seat groove, and the front end of the bolt rod penetrates through the protrusion and then is inserted into the bolt seat in the second bolt seat groove.

The bolt for the connecting structure comprises a bolt rod and a bolt seat, wherein the bolt rod penetrates through the bolt seat from the side face of the bolt seat, at least one bolt seat is arranged, and the width of the top of the side face of the bolt seat is smaller than that of other parts below the top of the side face of the bolt seat.

The side projection of the latch seat is trapezoid.

One end of the bolt rod is provided with a poking rod, and the diameter of the poking rod is not larger than that of the bolt rod.

The bolt seat is downwards provided with a chute from the top surface, the bottom of the chute is arc-shaped, and the axial lead of the chute is coincident with the axial lead of the bolt rod.

The width of the notch of the chute is smaller than the diameter of the poking rod.

The two sides of the notch of the chute are respectively provided with a notch with circular arc-shaped overlooking projection, the circle centers of the notches at the two sides of the notch are coincident, and the diameter of the notch is equal to that of the poking rod.

The invention has the beneficial effects that:

compared with the prior art, the invention can be fixed through the bolt after the first part and the second part on the furniture are spliced and inserted, so that the complete assembly of the furniture can be realized by bare hands without using tools. The latch seat and the latch rod disclosed by the invention use a uniform structure, so that the types of structures of connecting parts are reduced, namely the cost is reduced, and the standardized production is facilitated.

When the connecting structure is applied to furniture, holes are not required to be drilled on the surface, and when each part of the furniture is manufactured, only the inner side surface of the part is required to be grooved, and the outer surface of the part is not damaged by the connecting structure and the bolt in the mounting process according to the pattern printed by the whole design of the furniture, so that the integrity of the surface decoration of the furniture is ensured.

The connecting structure and the bolt can be manufactured by using an injection molding process, the manufactured parts have no sharp parts, and tools such as screwdrivers and the like are not needed in the mounting process, so that the connecting structure and the bolt are suitable for children with the hand-operated capability to automatically complete the whole mounting process, the hand-operated capability is exercised, the safety coefficient is high, and furniture products with the connecting structure are likely to be popular in the market.

Drawings

Fig. 1 is a schematic diagram of a connection structure (latch lever locking state) according to embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the connection structure (latch lever open state) of embodiment 1 of the present invention.

Fig. 3 is a schematic diagram of a connection structure (latch lever locking state) according to embodiment 2 of the present invention.

FIG. 4 is a schematic cross-sectional view taken along the direction A-A in FIG. 3.

Fig. 5 is a schematic diagram of a connection structure (latch lever locking state) of embodiment 3 of the present invention.

FIG. 6 is a schematic view in section in the direction B-B in FIG. 5.

FIG. 7 is a schematic view of the cross-section in the direction C-C of FIG. 5.

FIG. 8 is a schematic view of the section in the direction D-D in FIG. 5.

Fig. 9 is a perspective view showing the overall structure of the latch according to embodiment 2 of the present invention.

Fig. 10 is a schematic top view showing the overall structure of the latch according to embodiment 2 of the present invention.

Fig. 11 is a left side view schematically showing the overall structure of the latch according to embodiment 2 of the present invention.

Fig. 12 is a schematic perspective view of a latch lever according to the present invention.

Fig. 13 is a schematic front view of a latch lever of the present invention.

Fig. 14 is a right side view of the latch lever of the present invention.

Fig. 15 is a schematic perspective view of a latch seat according to the present invention.

Fig. 16 is a schematic top view of a latch seat according to the present invention.

Fig. 17 is a schematic left-hand view of a latch seat according to the present invention.

Fig. 18 is a perspective view showing the overall structure of the latch according to embodiment 3 of the present invention.

Fig. 19 is a schematic view of a component of the present invention.

Fig. 20 is a schematic view of a second structure of the component in embodiment 1 of the present invention.

Fig. 21 is a schematic view of a second structure of the component in embodiment 2 of the present invention.

Fig. 22 is a schematic diagram showing a second structure of the component in embodiment 3 of the present invention.

FIG. 23 is a schematic view of the overall structure of a child chair embodying the present invention.

FIG. 24 is a schematic bottom view of a child chair structure embodying the present invention.

Fig. 25 is a schematic view of a child back plate structure embodying the present invention.

Fig. 26 is a schematic view of the structure of a child seat plate embodying the present invention.

FIG. 27 is a schematic view of a child seat leg plate structure embodying the present invention.

Fig. 28 is a schematic view of a child seat support plate embodying the present invention.

Detailed Description

As shown in fig. 1, 3, 5 and 19 to 22, the present invention comprises a first component 100 and a second component 200 which are connected to each other by a pin 300, wherein the end surface of the first component 100 is provided with a protrusion 101, the side surface of the second component 200 connected to the first component 100 is provided with a slot 201 for inserting the protrusion 101, the side surface of the second component 200 connected to the first component 100 is provided with a placing groove 210 at least at one side of the first component 100, the pin 300 is limited in the placing groove 210 and can move back and forth towards the direction of the protrusion 101 in the placing groove 210, and the protrusion 101 of the first component 100 is provided with a through hole 102 for allowing the pin 300 to pass through.

Example 1

Specifically, as shown in fig. 1, the protrusion 101 of the first component 100 is inserted into the slot 201 of the second component 200, and the pin 300 is inserted into the through hole 102, so that the first component 100 and the second component 200 are connected. Fig. 2 shows the latch 300 in a state of being separated from the through hole 102. In this embodiment, the latch 300 is in a stick shape and is parallel to the placement groove 210, the distance from the end of the placement groove 210 to the nearest side of the protrusion 101 is not less than the length of the latch 300, and the length of the placement groove 210 is less than the length of the latch 300, so that the latch 300 is limited in the placement groove 210 and cannot fall out, and the latch 300 penetrates through the second part 200 in front of the placement groove 210.

In this embodiment, in order to enhance the stability of the connection of the plug 300, a socket 202 into which the plug 300 is inserted is provided on the side wall of the other side of the socket 201 at a position opposite to the plug 300. The length of the latch 300 is longer than the distance from the front end of the placement groove 210 to the farthest side of the protrusion 101, and after the latch 300 passes through the through hole 102, the front end of the latch 300 is inserted into the insertion hole 202, so that the middle part of the latch 300 is in the through hole 102, and the two end parts are respectively in the second parts 200 on both sides of the insertion slot 201. Thus, the first component 100 is firmly connected to the second component 200.

Example 2

Further, this embodiment is an improvement on the basis of the technical solution of embodiment 1.

As shown in fig. 9 to 11, the latch 300 of the present invention includes a latch lever 310 and a latch socket 320, the latch lever 310 passing through the latch socket 320 from a side of the latch socket 320.

As shown in fig. 12 to 14, a dial 311 is provided at one end of the latch lever 310, and the diameter of the dial 311 is not greater than the diameter of the latch lever 310. The top of the lever 211 may be provided with a knob or drum-shaped bulge 312 for convenient finger movement.

As shown in fig. 15 to 17, the latch seat 320 is provided with a sliding groove 321 downward from the top surface, the bottom of the sliding groove 321 is arc-shaped, and the axis of the sliding groove 321 coincides with the axis of the latch rod 310. The cross section of the latch rod 320 is circular, and its diameter is not greater than that of the slide slot 321, preferably equal, so that the latch rod 320 can be prevented from easily sliding in the slide slot 321 by friction therebetween.

The width of the notch of the slide groove 321 is smaller than the diameter of the shift lever 311, and since the diameter of the shift lever 311 is not larger than the diameter of the latch lever 310, the latch lever 310 is restricted in the slide groove 321 and does not come out of the notch. The slot width is less than the diameter of the lever 311 so that the slot can grip the lever 311, further preventing the latch rod 310 from sliding easily within the slide slot 321.

The edges of two sides of the notch of the chute 321 can be respectively provided with a notch 322 with circular arc shape in top view, as shown in fig. 16, the centers of the notches 322 at two sides of the notch coincide, and the diameter of the notch 322 is equal to the diameter of the deflector rod 311.

As shown in fig. 10, when the latch lever 310 is in the locked state, the shift lever 311 is just located in the notch 322 and is caught by the notch 322. To facilitate opening or locking of the latch lever 310, the notch 322 is positioned at an end of one of the ends of the notch, so that the lever 311 is not pushed too far, thereby facilitating operation.

Since the side projection of the latch base 320 in this embodiment has a smaller top width than other portions below the top, the latch base 320 is to be inserted into the placement groove 210 together with the latch rod 310, so that the latch base 320 can be fitted into the placement groove 210 without falling out, and the latch base 320 can be restricted into the placement groove 210 by the structure of a small top and a large bottom.

Preferably, the side projection of the latch seat 320 is trapezoidal, or may be circular, elliptical, or rectangular, and if rectangular, a part protruding from the bottom is required to be added on both sides as a limiting device to make the latch seat 320 fit into the placement groove 210, and of course, the shape of the placement groove 210 is required to match the latch seat 320.

Specifically, one end of the placement groove 210 is in intersecting communication with the slot 201, the placement groove 210 is perpendicular to the slot 201, the placement groove 210 includes a first latch seat groove 211 and a latch rod groove 212, and the first latch seat groove 211 is disposed at one end of the placement groove 210 connected with the slot 201.

As shown in fig. 21, in this embodiment, the front projection of the first latch seat groove 211 coincides with the front projection of the latch seat 320, and the side projection of the latch seat 320 is trapezoidal, so that the front projection of the first latch seat groove 211 is also trapezoidal, and the width of the bottom of the first latch seat groove 211 is larger than the width of the top thereof.

The latch socket 320 is detachably connected to the first latch socket recess 211, and the length of the latch socket 320 is not greater than the width of the slot 201, so that the latch socket 320 can be vertically placed into the slot 201 and then pushed into the first latch socket recess 211.

Before pushing into the first latch seat groove 211, the latch rod 310 needs to be inserted into the latch seat 320, and then the latch rod 310 is pulled backward, so that the latch seat 320 is at the front end of the latch rod 310, and the latch rod 310 is placed in the latch rod groove 212 while the latch seat 320 is placed in the slot 201, so that the width of the latch rod groove 212 is not smaller than the diameter of the latch rod 310.

As in embodiment 1, the distance from the end of the latch bar slot 212 to the nearest side of the protrusion 101 is not less than the length of the latch bar 310, i.e., the length of the latch bar slot 212 plus the length of the first latch seat slot 211 is not less than the length of the latch bar 310, preferably equal, so that when the latch bar 310 is pulled back, the latch bar 310 is withdrawn from the through hole 102 of the protrusion 101 to separate the first component 100 from the second component 200, whereas the latch bar 310 is pushed forward into the through hole 102 to be in a locked state to connect the first component 100 and the second component 200 together.

In this embodiment, as shown in fig. 4, similarly to embodiment 1, in order to enhance the stability of the connection of the plug 300, a socket 202 into which the plug rod 310 is inserted is provided on the side wall of the other side of the socket 201 at a position opposite to the plug rod 310. The length of the latch rod 310 is greater than the sum of the length of the first latch seat recess 211 and the thickness of the boss 101.

After the latch rod 310 passes through the through hole 102, the front end of the latch rod is inserted into the jack 202, and two end portions of the latch rod 310 are respectively positioned in the second component 200 and the latch seat 320 on two sides of the slot 201. In this way, component one 100 is more securely connected to component two 200.

Example 3

As shown in fig. 5 to 8, on the basis of embodiment 2, a second latch seat 213, that is, the position of the jack 202 in embodiment 2, which is not provided with the jack 202 anymore, is provided on the side wall of the other side of the slot 201 with respect to the first latch seat 211, and the second latch seat 213 is provided as shown in fig. 22. The other structures are the same as those of embodiment 2.

As with the first keyway 211, there is a removable keyway 320 therein, the front projection of the second keyway 213 coincides with the front projection of the keyway 320, and the bottom width of the second keyway 213 is greater than the width of the top, also trapezoidal.

As shown in fig. 8 and 18, the front end of the latch rod 310 is inserted into the latch seat 320 in the second latch seat groove 213 after passing through the protrusion 101.

The first latch seat recess 211 and the second latch seat recess 213 are identical in structure, and the latch seat 320 embedded therein is identical.

The height of the latch seats 320 in embodiments 2 and 3, at least the height of the latch seats 320 in the first latch seat recess 211, is greater than the height of the first latch seat recess 211, which is more advantageous for toggle the lever 311. In order to achieve standardization and simplify the structure of parts, the latch seats 320 can be commonly used, the structure of the second latch seat groove 213 is the same as that of the first latch seat groove 211, and the latch seats 320 embedded in the second latch seat groove are also the same as each other, so that in practical application, two or more latch seats 320 and latch seats are not required to be manufactured, and the latch seats 320 and the latch rods 310 can be mass-produced, thereby greatly reducing the manufacturing cost.

Embodiments 1 to 3 are not independent product solutions, and the solutions of the three embodiments may be combined into new products respectively, so that the cost is the lowest in practical application.

As shown in fig. 23, the child chair includes a back plate 410, a seat plate 420, leg plates 430 on both sides of the seat plate 420, and a support plate 440 connected between the leg plates 430, as an example of practical application to the child chair.

As shown in fig. 23 and 24, two leg plates 430 are placed side by side, and as shown in fig. 27, slots 201 are provided at both sides of the inner side surface of the leg plate 430, and first latch seat grooves 211, latch rod grooves 212 and second latch seat grooves 213 are provided at both sides of each slot 201, respectively. The inner sides of the two leg plates 430 are opposite, a protrusion 101 is provided at the top of the same side of the two leg plates 430, and a through hole 102 is provided at the middle of the protrusion 101.

As shown in fig. 26, the bottom surface of the seat plate 420 is provided with slots 201 on both sides thereof, and similarly, a first latch seat groove 211, a latch rod groove 212 and a second latch seat groove 213 are provided on both sides of each slot 201. The slots 201 of the lower bottom surface of the seat plate 420 are in one-to-one correspondence with the protrusions 101 of the leg plate 430, and the protrusions 101 of the leg plate 430 are inserted into the slots 201 of the seat plate 420, respectively.

As shown in fig. 25, protrusions 101 are respectively provided at both side edges of the lower half of the back plate 410, through holes 102 are provided in the middle of the protrusions 101, and the protrusions 101 at both side edges of the back plate 410 are respectively inserted into the pair of slots 201 at the rear sides of the two leg plates 430 in a one-to-one correspondence.

As shown in fig. 28, protrusions 101 are respectively provided at both end edges of the support plate 440, a through hole is provided in the middle of the protrusions 101, the support plate 440 is disposed between the front sides of the leg plates 430 opposite to the back plate 410, and the protrusions 101 at both side edges of the support plate 440 are inserted into one-to-one correspondence with a pair of insertion grooves 201 at the front sides of the two leg plates 430.

As shown in fig. 24, after the back plate 410, the seat plate 420, and the leg plates 430 on both sides of the seat plate 420 are assembled, final connection can be performed by pre-assembling the latch seats 320, 310 of the first latch seat groove 211, the latch rod groove 212, and the second latch seat groove 213 before assembling. The first latch seat recess 211 and the latch seat 320 and the latch rod 310 in the latch rod 212 may insert the latch rod 310 into the latch seat 320 before being put in, thereby facilitating installation.

After the installation, the top of the leg plate 430 supports the seat plate 420, the lower half part of the back plate 410 can also be used as leg support, and the two leg plates 430 are connected through the lower half part of the back plate 410 and the support plate 440 to form a stable child chair support structure, so that the firmness of the structure of the whole child chair is not different from that of a common child chair, but the installation process is much more convenient than the screw connection in the prior art, tools such as a screwdriver are not needed, the installation operation can be carried out even for children with the ability to operate, and the risk coefficient in the installation process is much smaller than that in the installation process of the child chair in the prior art.

Claims

1. The connecting structure comprises a first component and a second component which are mutually connected through a bolt, wherein the end face of the first component is provided with a bulge, the side face of the second component connected with the first component is provided with a slot for inserting the bulge, the side face of the second component connected with the first component is provided with a placing groove for placing the bolt at least on one side of the first component, the bolt is limited in the placing groove and can move back and forth towards the bulge in the placing groove, one end of the placing groove is communicated with the slot in a crossing way, and the bulge of the first component is provided with a through hole for the bolt to pass through;

2. A connection structure according to claim 1, wherein: the side wall of the other side of the slot is provided with a jack for inserting the bolt rod relative to the bolt rod.

3. A connection structure according to claim 1, wherein: the side wall of the other side of the slot is provided with a second bolt seat groove corresponding to the first bolt seat groove, a detachable bolt seat is arranged in the second bolt seat groove, the front projection of the second bolt seat groove coincides with the front projection of the bolt seat, the width of the bottom of the second bolt seat groove is larger than that of the top of the second bolt seat groove, and the front end of the bolt rod penetrates through the protrusion and then is inserted into the bolt seat in the second bolt seat groove.

4. A latch for use in a connection according to any one of claims 1 to 3, comprising a latch rod and a latch seat, the latch rod passing through the latch seat from a side of the latch seat, the latch seat being provided with at least one, the side of the latch seat projecting a further portion having a smaller width at its top than at its bottom.

5. A latch according to claim 4, wherein: the side projection of the latch seat is trapezoid.

6. A latch according to claim 5, wherein: one end of the bolt rod is provided with a poking rod, and the diameter of the poking rod is not larger than that of the bolt rod.

7. A latch according to claim 6, wherein: the bolt seat is downwards provided with a chute from the top surface, the bottom of the chute is arc-shaped, and the axial lead of the chute is coincident with the axial lead of the bolt rod.

8. A latch according to claim 7, wherein: the width of the notch of the chute is smaller than the diameter of the poking rod.

9. A latch according to claim 8, wherein: the two sides of the notch of the chute are respectively provided with a notch with circular arc-shaped overlooking projection, the circle centers of the notches at the two sides of the notch are coincident, and the diameter of the notch is equal to that of the poking rod.