CN214424855U

CN214424855U - Hidden connecting piece

Info

Publication number: CN214424855U
Application number: CN202120341297.3U
Authority: CN
Inventors: 张钦敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-10-19
Anticipated expiration: 2031-02-05

Abstract

The utility model provides a hidden connecting piece, which comprises a connecting rod, an expansion plug and a stop sleeve, wherein the connecting rod penetrates through the stop sleeve, the bottom end of the stop sleeve is provided with a claw ring correspondingly clamped with the gear teeth, and the bottom end of the claw ring is also provided with an extension sleeve; the utility model can be hidden after the board is installed, and the furniture is more beautiful; when the installation is punched, general processing equipment or manual punching can, do not need senior mechanical equipment and laminu custom cutter, the cost is reduced, the installation is simpler, and the suitability is wider.

Description

Hidden connecting piece

Technical Field

The utility model relates to a hardware products field specifically is for hiding the connecting piece.

Background

At present, three common connection modes of three-in-one, screw locking and domino hidden connection are adopted among the plates of the detachable furniture, and the hardware can be exposed by the three-in-one and screw locking modes, so that the product is not attractive, and the grade of the furniture is low; the connection mode of the domino has the disadvantages of high hardware price, high production cost and high furniture price because special holes need to be drilled on more than 3 shafts of processing equipment.

SUMMERY OF THE UTILITY MODEL

Not enough to the technique that above-mentioned exists, the utility model aims at providing hide the connecting piece, it has solved installation back connecting piece show, furniture is not pleasing to the eye, and it is troublesome to punch during the installation, problem that the suitability is low.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the hidden connecting piece comprises a connecting rod and an expansion plug, wherein the top end of the connecting rod is provided with a connecting rod end part thread, the bottom end of the connecting rod is fixedly provided with a gear tooth, the end surface of the bottom end of the connecting rod is provided with an installation groove, the expansion plug is sleeved on the top end of the connecting rod, and the inner side surface of the expansion plug is provided with an inner thread which is correspondingly screwed with the connecting rod end part thread; the gear tooth locking device is characterized by further comprising a locking sleeve, outer threads of the locking sleeve are arranged on the circumferential surface of the outer side of the locking sleeve, a groove is formed in the end face of the top end of the locking sleeve, the connecting rod penetrates through the locking sleeve, a claw ring clamped with the gear teeth correspondingly is arranged at the bottom end of the locking sleeve, and an extending sleeve is further arranged at the bottom end of the claw ring.

Preferably, the claw ring comprises a ring body and a plurality of stopping teeth arranged on the inner side wall of the ring body, and the stopping teeth are correspondingly clamped with the gear teeth.

Preferably, the extension sleeve is a sleeve with smooth inner and outer walls.

The beneficial effects of the utility model reside in that: after the board is installed, the connecting piece is hidden, so that the furniture is more attractive; when the installation is punched, general processing equipment or manual punching can, do not need senior mechanical equipment and laminu custom cutter, the cost is reduced, the installation is simpler, and the suitability is wider.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an internal structure of a hidden connecting member according to an embodiment of the present invention;

fig. 2 is an external schematic structural view of a hidden connecting member according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a connecting rod;

FIG. 4 is a schematic view of the claw ring;

FIG. 5 is a schematic view of the structure of the extension sleeve;

fig. 6 is a schematic view illustrating a hidden connection member according to an embodiment of the present invention.

Description of reference numerals:

1-stop sleeve, 2-connecting rod, 3-expansion plug, 4-claw ring, 5-extension sleeve, 6-gear tooth, 7-plate A7, 8-plate B8, 9-connecting piece, 21-connecting rod end thread, 22-gear tooth, 41-stop tooth and 42-ring body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 6, the hidden connecting member includes a connecting rod 2 and an expansion plug 3, the expansion plug 3 may be any one of pre-embedded colloidal particles and pre-embedded internal thread screws, a connecting rod end thread 21 is provided on the top end of the connecting rod 2, a gear tooth 6 is fixed on the bottom end of the connecting rod 2, an installation groove is provided on the bottom end face of the connecting rod 2, the expansion plug 3 is sleeved on the top end of the connecting rod 2, an internal thread is provided on the inner side face of the expansion plug 3, and the expansion plug is correspondingly screwed with the connecting rod end thread 21; the connecting rod limiting device is characterized by further comprising a locking sleeve 1, outer threads of the locking sleeve are arranged on the circumferential surface of the outer side of the locking sleeve 1, a groove is formed in the end face of the top end of the locking sleeve 1, the connecting rod 2 penetrates through the locking sleeve 1, a claw ring 4 corresponding to the gear teeth 6 is arranged at the bottom end of the locking sleeve 1, the claw ring 4 is correspondingly clamped with the gear teeth 6, therefore, the connecting rod 2 can be limited and fixed, an extending sleeve 5 is further arranged at the bottom end of the claw ring 4, the claw ring 4 is prevented from falling into a hole in a plate, and meanwhile, the connecting rod 2 is guaranteed to have a sufficient deep space after passing through the claw ring 4.

Further, the claw ring 4 includes a ring body 42 and a plurality of stopping teeth 41 disposed on the inner side wall of the ring body 42, and the stopping teeth 41 are correspondingly engaged with the gear teeth 6.

Further, the extension sleeve 5 is a sleeve with smooth inner and outer walls.

When in use, in the initial state, the connecting rod 2, the stop sleeve 1 and the expansion plug 3 are separated, firstly, a connecting piece mounting hole and a wood tenon hole are drilled on the plate B8 and the plate A7, then the expansion plug 3 is mounted in the connecting piece mounting hole of the plate A7, the extension sleeve 5 is placed in the connecting piece mounting hole on the plate B8, then the claw ring 4 is placed, finally the stop sleeve 1 is locked, the stop sleeve 1 and the plate B8 are fixed, the claw ring 4 and the extension sleeve 5 are prevented from running out, the threaded end of the connecting rod 2 is locked into the expansion plug 3, the connecting rod 2 and the plate A7 are fixed, then a wood tenon is placed in the wood tenon hole of the plate B8, the plate B8 abuts against the plate A7, the wood tenon on the plate B8 is aligned with the wood tenon hole on the plate A7, the connecting rod 2 on the plate B8 is sleeved in the stop sleeve 1, when the plate B8 and the plate A7 are close to the plate, the stop tooth 41 on the connecting rod 2 is pushed open by the tooth 22, the stop teeth 41 on the claw ring 4 can be clamped with the gear teeth 22 on the connecting rod 2, the connecting rod 2 and the stop sleeve 1 are locked by tension, and the plate A7 and the plate B8 can be tightly combined; meanwhile, the wood tenon on the plate B8 is inserted into the wood tenon hole on the plate A7, and the wood tenon can ensure that the plate cannot be displaced, so that the tension direction between the connecting rod 2 and the stop sleeve 1 is not changed.

The groove and mounting groove mating tool facilitates installation.

The utility model is designed in such a way that the connecting piece is hidden after the board is installed, so that the furniture is more beautiful; when the installation is punched, general processing equipment or manual punching can, do not need senior mechanical equipment and laminu custom cutter, the cost is reduced, the installation is simpler, and the suitability is wider.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The hidden connecting piece comprises a connecting rod and an expansion plug, wherein the top end of the connecting rod is provided with a connecting rod end part thread, the bottom end of the connecting rod is fixedly provided with a gear tooth, the end surface of the bottom end of the connecting rod is provided with an installation groove, the expansion plug is sleeved on the top end of the connecting rod, and the inner side surface of the expansion plug is provided with an inner thread which is correspondingly screwed with the connecting rod end part thread; the gear tooth locking mechanism is characterized by further comprising a locking sleeve, outer threads of the locking sleeve are arranged on the circumferential surface of the outer side of the locking sleeve, a groove is formed in the end face of the top end of the locking sleeve, the connecting rod penetrates through the locking sleeve, a claw ring which is correspondingly clamped with the gear tooth is arranged at the bottom end of the locking sleeve, and an extending sleeve is further arranged at the bottom end of the claw ring.

2. The concealed coupling according to claim 1, wherein the pawl ring includes a ring body and a plurality of stopping teeth disposed on an inner sidewall of the ring body, and the stopping teeth are engaged with the gear teeth.

3. The concealed coupling according to claim 1, wherein said extension sleeve is a sleeve having smooth inner and outer walls.