CN209733163U - Connecting structure of seat backrest and chassis - Google Patents
Connecting structure of seat backrest and chassis Download PDFInfo
- Publication number
- CN209733163U CN209733163U CN201822277729.XU CN201822277729U CN209733163U CN 209733163 U CN209733163 U CN 209733163U CN 201822277729 U CN201822277729 U CN 201822277729U CN 209733163 U CN209733163 U CN 209733163U
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- hole
- joint
- chassis
- mounting hole
- thick bamboo
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model discloses a connection structure on seat back and chassis, including chassis underframe and back frame, the chassis underframe both ends are provided with the spliced pole that outwards stretches out, are provided with the connecting hole in the spliced pole, and the spliced pole outside is cup jointed and is installed middle cover, and middle cover is provided with the joint hole with the connecting hole intercommunication, and back frame both ends are provided with the link, the link be provided with joint hole complex mounting hole, placed a joint section of thick bamboo in the mounting hole, during the installation, only need put into the mounting hole with a joint section of thick bamboo and stretch into the joint downthehole to just can realize the connection installation of back frame and chassis underframe, also only need during the dismantlement take out a joint section of thick bamboo can, its installation and operation are very convenient.
Description
Technical Field
The utility model relates to a seat field especially relates to a connection structure on backrest and chassis.
Background
The chair is a piece of furniture which is indispensable when people work or have a rest, and plays a role in bearing the weight of people. The existing seat is usually provided with a chassis and a backrest, and a plurality of bolt assemblies are usually adopted between the chassis and the backrest to be connected and fixed, so that the existing seat is more complicated in operation, time-consuming and long and inconvenient to disassemble and assemble when being installed or disassembled.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a connecting structure of a seat backrest and a chassis, which is convenient to disassemble and assemble.
In order to achieve the above object, an embodiment of the present invention adopts the following technical solutions: the utility model provides a connection structure of backrest and chassis, includes chassis underframe and back frame, the chassis underframe both ends are provided with the spliced pole that outwards stretches out, be provided with the connecting hole in the spliced pole, the spliced pole outside is cup jointed and is installed middle cover, middle cover is provided with the joint hole with the connecting hole intercommunication, back frame both ends are provided with the link, the link be provided with joint hole complex mounting hole, a joint section of thick bamboo has been placed in the mounting hole, thereby a joint section of thick bamboo stretches out the mounting hole and makes back frame and chassis underframe be connected with joint jogged joint.
As a further improvement of the scheme, the inner walls of the clamping hole and the mounting hole are provided with a plurality of clamping grooves, and the outer side of the clamping cylinder is provided with a convex block matched with the clamping grooves.
Furthermore, the clamping hole and the mounting hole are in the shape of a conical hole, and the clamping cylinder is in the shape of a cone matched with the clamping hole and the mounting hole.
Further, joint hole outer wall still is provided with the locking hole, a mounting hole and a joint section of thick bamboo are provided with corresponding mating holes, the locking bolt of being connected with a joint section of thick bamboo is installed in the locking hole.
Furthermore, a gland is arranged outside the mounting hole.
One or more embodiments of the present invention have at least the following beneficial effects:
this mounting structure includes chassis underframe and back frame, and the chassis underframe both ends are provided with the spliced pole that outwards stretches out, are provided with the connecting hole in the spliced pole, and the spliced pole outside cup joints and installs middle cover, and middle cover is provided with the joint hole with the connecting hole intercommunication, and back frame both ends are provided with the link, the link be provided with joint hole complex mounting hole, placed a joint section of thick bamboo in the mounting hole, during the installation, only need put into the mounting hole with a joint section of thick bamboo and stretch into the joint downthehole to just can realize being connected of back frame and chassis underframe and install, also only need during the dismantlement take out a joint section of thick bamboo can, its installation and operation are very convenient.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention;
FIG. 2 is an exploded schematic view of FIG. 1;
FIG. 3 is a schematic view of the construction of the intermediate sleeve;
FIG. 4 is a schematic view of the structure of the backrest frame;
Fig. 5 is a schematic structural view of the chuck barrel.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
referring to fig. 1 to 5, an embodiment of the utility model, a connection structure on seat back and chassis, including chassis underframe 1 and back frame 2, chassis underframe 1 both ends are provided with the spliced pole that outwards stretches out, be provided with the connecting hole in the spliced pole, the spliced pole outside is cup jointed and is installed middle cover 3, middle cover 3 is provided with the joint hole 31 with the connecting hole intercommunication, back frame 2 both ends are provided with link 21, link 21 be provided with joint hole 31 complex mounting hole 22, a clamping section of thick bamboo 4 has been placed in the mounting hole 22, thereby a clamping section of thick bamboo 4 stretches out mounting hole 22 and is connected messenger back frame 2 and chassis underframe 1 with joint hole 31 and is connected. During installation, the clamping cylinder 4 only needs to be placed into the installation hole 22 and extend into the clamping hole 31, so that the backrest frame 2 and the chassis frame 1 can be connected and installed, the clamping cylinder 4 only needs to be taken out during disassembly, and the installation and the operation are very convenient. Moreover, the diameter of the clamping cylinder 4 is much larger than that of a bolt used in the traditional installation, so that the clamping cylinder has higher torque resistance and can bear larger torsion, and the clamping cylinder is also higher in connection structural strength and safer and more reliable in connection.
Referring to fig. 2, preferably, the inner walls of the clamping hole 31 and the mounting hole 22 are provided with a plurality of clamping grooves 6, the outer side of the clamping cylinder 4 is provided with a projection 41 matched with the clamping grooves 6, and during installation, the clamping cylinder 4 is clamped into the clamping grooves 6 through the projection 41, so that the clamping cylinder 4 is fixed with the clamping hole 31 and the mounting hole 22 in a clamping manner, and mutual rotation of the clamping cylinder and the clamping hole is prevented.
Referring to fig. 5, preferably, joint hole 31 and mounting hole 22 are the taper hole form, joint section of thick bamboo 4 is the taper form with joint hole 31 and mounting hole 22 looks adaptation, sets up joint section of thick bamboo 4 into the taper form through to make its installation more convenient, and it is connected the installation in putting into mounting hole 22 and can slide into joint hole 31.
Referring to fig. 3, preferably, the outer wall of the clamping hole 31 is further provided with a locking hole 32, the mounting hole 22 and the clamping cylinder 4 are provided with corresponding matching holes, the locking hole 32 is provided with a locking bolt connected with the clamping cylinder 4, and the clamping cylinder 4 can be further locked and fixed by the locking bolt, so that the reliability of the installation and connection of the clamping cylinder is improved.
Referring to fig. 4 and 2, preferably, a pressing cover 5 is further installed outside the installation hole 22, and by providing the pressing cover 5, the clamping cylinder 4 can be prevented from easily falling out of the installation hole 22, and meanwhile, sundries can be prevented from entering the clamping hole 22.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. a connection structure of backrest and chassis which characterized in that: including chassis underframe and back frame, chassis underframe both ends are provided with the spliced pole that outwards stretches out, be provided with the connecting hole in the spliced pole, the spliced pole outside is cup jointed and is installed middle cover, middle cover is provided with the joint hole with the connecting hole intercommunication, back frame both ends are provided with the link, the link be provided with joint hole complex mounting hole, a joint section of thick bamboo has been placed in the mounting hole, thereby a joint section of thick bamboo stretches out the mounting hole and makes back frame and chassis underframe be connected with joint jogged joint.
2. The seat back and chassis connection structure according to claim 1, wherein: the inner wall of joint hole and mounting hole all is provided with a plurality of draw-in grooves, the outside of joint section of thick bamboo be provided with draw-in groove complex lug.
3. The seat back and chassis connection structure according to claim 2, wherein: the clamping hole and the mounting hole are in the shape of a conical hole, and the clamping cylinder is in the shape of a cone matched with the clamping hole and the mounting hole.
4. The seat back and chassis connection structure according to claim 1, wherein: the joint hole outer wall still is provided with the locking hole, mounting hole and joint section of thick bamboo are provided with corresponding mating holes, the locking bolt of being connected with a joint section of thick bamboo is installed in the locking hole.
5. The seat back and chassis connection structure according to any one of claims 1 to 4, wherein: and a gland is also arranged outside the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277729.XU CN209733163U (en) | 2018-12-29 | 2018-12-29 | Connecting structure of seat backrest and chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277729.XU CN209733163U (en) | 2018-12-29 | 2018-12-29 | Connecting structure of seat backrest and chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209733163U true CN209733163U (en) | 2019-12-06 |
Family
ID=68703263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277729.XU Active CN209733163U (en) | 2018-12-29 | 2018-12-29 | Connecting structure of seat backrest and chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209733163U (en) |
-
2018
- 2018-12-29 CN CN201822277729.XU patent/CN209733163U/en active Active
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| GR01 | Patent grant |