CN107684269B - Multi-position chair foot rest - Google Patents
Multi-position chair foot rest Download PDFInfo
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- CN107684269B CN107684269B CN201610638525.7A CN201610638525A CN107684269B CN 107684269 B CN107684269 B CN 107684269B CN 201610638525 A CN201610638525 A CN 201610638525A CN 107684269 B CN107684269 B CN 107684269B
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- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 230000000276 sedentary effect Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 206010020649 Hyperkeratosis Diseases 0.000 description 3
- 230000036544 posture Effects 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 2
- 206010028289 Muscle atrophy Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
Abstract
The invention relates to a multi-position chair foot rest which consists of a connecting seat assembly, an operation positioning assembly, a three-rod assembly and a foot rest. The connecting frame of the connecting seat component is fixedly connected below the seat, and a pair of multistage self-locking positioning hinges and connecting pieces movably connected with a pair of hanging legs are respectively arranged on the connecting frame front and back. The end part and a certain position of the connecting piece are respectively fixedly connected with an operating handle and a pair of vertical pieces of the three-bar assembly, and the other pair of vertical pieces are fixedly connected to the auxiliary connecting ends of the pair of multistage self-locking positioning hinges. An elastic piece I is arranged between the connecting seat component and the three-rod component, and a footrest is arranged on a horizontal piece of the parallelogram mechanism formed by the elastic piece I. The operating handle is operated when sitting on the chair, so that the footrest is positioned and fixed at a plurality of positions and at the lower rear of the seat. The invention has simple structure, convenient and reliable use, convenient and elegant operation, and is matched with the chair back, and the sitting posture, half lying or lying angle can be conveniently adjusted, so that the chair has a plurality of positions, can fully meet the comfort level of a human body, and is suitable for various states of leisure, sleeping and working.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to a multi-position chair foot rest.
Background
Sitting for a long time, the life state of modern people is achieved. According to authoritative media reports, sedentary sitting not only causes organ injury and muscle degeneration of people, but also hurts heart, spinal column, brain and intestinal tract, thereby bringing a plurality of body hazards. In order to eliminate or mitigate the hazards presented by sedentary, one new approach that people have tried is to add a footrest to the chair to add additional functionality to the chair in either lying or semi-lying. Such as:
1) The foot rest mechanism of the chair with the patent number 2015201153733 comprises a foot rest body and a foot rest pad fixedly connected with the front end of the foot rest body, wherein the foot rest body comprises a fixed support, a folding connecting rod and a connecting block, the fixed support is fixed at the bottom of a seat cushion of the chair, the folding connecting rod is connected with the fixed support, and the connecting block is fixedly connected with the foot rest pad. The foot rest is stretched out or retracted by pushing and pulling the folding connecting rod, so that the foot rest is convenient to use, has better firmness and is easy to apply in actual production and use.
2) The patent number ZL 2014203983344 is a foot rest suitable for a chair, comprising a support rod and a foot rest plate, and a sliding seat which is in sliding sleeve joint with the support rod; the sliding seat comprises a seat shell, balls positioned between the outer wall of the supporting rod and the inner wall of the seat shell, and a sliding frame sleeved outside the supporting rod and fixedly sleeved in the seat shell and provided with through holes for limiting the positions of the balls; the cross section of the sliding frame is square, and the sliding frame is formed by clamping a first half body and a second half body which are identical in structure; the support rod and the sliding seat have good sliding smoothness.
3) The patent number ZL 2015210134233's a collapsible bracket device ", including seat support connection base, callus on the sole connection base, first rocker, second rocker, respectively with seat support connection base reaches second rocker articulated first support with the callus on the sole connection base reaches first rocker articulated second support respectively, the bracket device passes through first rocker second rocker, first support reaches second support extends or folds and makes seat support connection base with callus on the sole connection base is located coplanar or coincide from top to bottom.
4) The chair leg rest device with the application number 201510760200.1 consists of a connecting seat assembly, a three-rod assembly, a leg rest assembly and a positioning assembly. The parallelogram mechanism composed of the connecting seat component and the three-bar component enables the foot rest component to translate up and down back and forth through the main operating handle, and the auxiliary operating handle operates the positioning hook to position and fix the foot rest component at the forefront part of the chair or the lower back part of the chair.
The four techniques are all to add the angle of the chair leg rest accessory and the additional function of the chair for lying or semi-lying to eliminate or reduce the sedentary hazard. The chair has simple and practical structure and is convenient for adding the additional function to the original chair. However, the "foot rest of chair" technology of the first three examples has two significant disadvantages: ① Without the operating handle, the operation of pulling out and pushing in can be directly performed, and the operation of sitting on the chair seat is difficult. If the user stands in front of the chair to operate, the extended foot rest can obstruct the upper and lower chairs, so that the chair is inconvenient to use, original in operation and unsightly. ② The foot rest has only one fixed position, cannot be adjusted, cannot meet the requirement that each person adjusts the chair to an ideal angle in time according to the conditions and needs of the person, obtains good comfort, and is suitable for comfortable leisure, sleeping and working. The three types of foot rests of the chairs are relatively suitable for lower chairs. The fourth technique is applicable to high and low grade chairs. The foot rest is operated by an operating handle when sitting on a chair, but the foot rest is operated by a main operating handle technology and an auxiliary operating handle technology, namely, the positioning and the fixing of the foot rest at the set highest position and the set lowest position are realized, the separate operation of the main operating handle and the auxiliary operating handle is realized, the operation is inconvenient, and the operation structure is complex; the foot rest has only one fixed position.
Disclosure of Invention
The invention aims to provide a multi-position chair foot rest. The multi-position chair foot rest mainly aims to realize improvement and lifting of a chair foot rest device with the application number 201510760200.1 by using the simplest structure: ① Sitting on the chair and performing operation by using an operation handle; ② The positioning and fixing of the multi-position of the foot rest are realized, and the multi-position of the foot rest comprises the set highest position and the set lowest position. The chair is suitable for high-low grade chairs, has simple and practical structure, reliable and convenient use, convenient operation, elegance and comfort, and can conveniently adjust sitting postures, semi-lying or lying angles by matching with the chair back, so that the chair has a plurality of positions, fully meets the comfort level of human bodies and is suitable for various states of leisure, sleeping and working. Thereby eliminating or reducing the harm caused by sedentary.
In order to achieve the main purpose, the invention is realized by the following technical scheme. The device mainly comprises four parts of a connecting seat assembly, an operation positioning assembly, a three-rod assembly and a footrest. The connecting frame of the connecting seat component is fixedly connected below the chair seat, a pair of hanging legs are fixedly connected at a proper position of a certain edge part of the connecting frame, connecting pieces are movably connected on the pair of hanging legs, one end of each connecting piece extends out of the connecting frame, the end part of each connecting piece extending out of the connecting frame is fixedly connected with an operating handle of the operating positioning component, a pair of multistage self-locking positioning hinges (Japanese buckles) of the connecting seat component consists of a hinged main connecting end and an auxiliary connecting end, the hinged main connecting end and the auxiliary connecting end can be self-locked in a set range, the main connecting end is fixedly connected at the other proper position of the connecting frame corresponding to the pair of hanging legs, the multistage self-locking positioning hinge is arranged at the left side of the connecting frame and is a left multistage self-locking positioning hinge, the multistage self-locking positioning hinge is arranged on the right side of the connecting frame and is a right multistage self-locking positioning hinge, two groups of three-rod assemblies are arranged on the left side of the connecting seat assembly and are right three-rod assemblies arranged on the right side of the connecting seat assembly, two pairs of vertical members of the three-rod assemblies are a pair of front vertical members and a pair of rear vertical members, the front vertical members of the left three-rod assemblies are left front vertical members, the rear vertical members of the left three-rod assemblies are left rear vertical members, the front vertical members of the right three-rod assemblies are right front vertical members, the rear vertical members of the right three-rod assemblies are right rear vertical members, the upper ends of the pair of vertical members are fixedly connected with the auxiliary connecting ends of the pair of multistage self-locking positioning hinges, and the upper ends of the other pair of vertical members are fixedly connected with the connecting members. The three-bar assembly comprises a pair of horizontal pieces, wherein the pair of horizontal pieces are a left horizontal piece and a right horizontal piece, the lower end parts of the left rear vertical piece and the right rear vertical piece are respectively movably connected with the rear end parts of the left horizontal piece and the right horizontal piece, the lower end parts of the left front vertical piece and the right front vertical piece are respectively movably connected with a proper position of the left horizontal piece and the right horizontal piece, and the overhanging parts of the left horizontal piece and the right horizontal piece are connected with the footrest.
The four-bar mechanism formed by the connecting seat component and the three-bar component is a parallelogram mechanism.
The vertical piece is provided with a locating pin, and the locating pin can be reliably abutted against the vertical piece on the same side of the other vertical piece.
The multi-stage self-locking positioning hinge is a reverse multi-stage self-locking positioning hinge (a reverse Japanese buckle).
The hinged main connecting end and auxiliary connecting end of the reverse multistage self-locking positioning hinge are provided with a folding locking structure.
And an elastic piece I of the operation positioning assembly is arranged at a proper position between the connecting seat assembly and the three-rod assembly.
And an elastic piece II for operating the positioning assembly is arranged at a proper position of the three-rod assembly.
The connecting piece fixedly connected with the operating handle is fixedly connected with a tensioning piece of the operating positioning assembly, and the tensioning piece can prop against the connecting frame.
The overhanging portions of the left and right horizontal members and the footrest are connected in such a way that: the overhanging parts of the left horizontal piece and the right horizontal piece are connected with a front small connecting piece and a rear small connecting rod, and the rear small connecting rod is movably connected with the footrest.
The overhanging parts of the left horizontal piece and the right horizontal piece are fixedly connected with the footrest.
With the above structure, an operation method of the multi-position chair foot rest (for example, a four-bar mechanism composed of components is a parallelogram mechanism, and a connecting piece is arranged at the rear part of the connecting frame) is as follows.
The footrest is positioned at the final position under the set seat by the folding locking structure of the reverse multi-stage self-locking positioning hinge or the elastic piece I/II or the tensioning piece. The person sits on the chair, rotates the operating handle anticlockwise, and the rotating operating handle drives the connecting piece, the left rear vertical piece and the right rear vertical piece to rotate together, and drives the left front vertical piece and the reverse left multi-stage self-locking positioning hinge fixedly connected with the left front vertical piece and the right front vertical piece and the reverse right multi-stage self-locking positioning hinge fixedly connected with the right front vertical piece to move forwards and upwards together. That is, the parallelogram mechanism is moved in the upward and forward direction, and the horizontal member that translates is pushed to the desired position. The main connecting end and the auxiliary connecting end of the reverse multistage self-locking positioning hinge can be self-locked at a set position level, and the horizontal piece is locked at a required position. At this point, the footrest is flipped forward around the small rear connecting rod, which is resting on the small front connecting piece. When the horizontal member is pushed in line with the "rack position" set on the connection frame, uncertainty in movement of the horizontal member/footrest may occur. This uncertainty is eliminated by the following structure: ① The positioning pin arranged on the rear vertical member is abutted against the front vertical member on the same side and is eliminated under the combined action of the self-locking function of the reverse multistage self-locking positioning hinge; ② If the elastic piece of the operation positioning assembly arranged between the connecting seat assembly and the three-rod assembly is a gas spring, the elastic piece is eliminated by the elastic force of the gas spring; ③ The self-locking function of the positioning pin and the reverse multistage self-locking positioning hinge is eliminated under the combined action of the elasticity of the gas spring. I.e. the desired position of the horizontal member/footrest is continued to be ensured. When the horizontal piece/the footrest is positioned at the highest position in front of the chair, the footrest is turned backwards around the rear small connecting rod, the operating handle is reversely rotated again, the reverse multi-stage self-locking positioning hinge is caused to lose the self-locking function, and the whole parallelogram mechanism is positioned at the last position under the set chair by the folding locking structure of the reverse multi-stage self-locking positioning hinge or by the elastic piece or by the tensioning piece under the condition that the dead weight of the whole parallelogram mechanism and the operating handle are clockwise operated.
In summary, the invention is suitable for high and low grade chairs, and the chair is operated by an operating handle to realize the positioning and fixing of the multiple positions of the foot rest, including the set highest and lowest positions. The chair has the advantages of simple and practical structure, convenient and reliable use, convenient and quick operation, elegance and comfort, and the chair back is matched, so that the sitting posture, the semi-lying or lying angle can be conveniently adjusted, the chair has a plurality of positions, the comfort of a human body is fully satisfied, and the chair is suitable for various states of leisure, sleeping and working. Thereby eliminating or reducing the harm caused by sedentary.
Drawings
The following describes the preferred embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a schematic side view of a multi-position chair leg rest in a preferred embodiment;
Fig. 2 is a schematic view of fig. 1 in a direction a.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
See fig. 1 and 2. The example comprises four parts of a connecting seat assembly 1, an operation positioning assembly 2, a three-rod assembly 3 and a footrest 4. The connecting frame 1/1 of the connecting seat assembly 1 is fixedly connected below the seat 5, the rear part of the connecting frame 1/1 is fixedly connected with a pair of hanging legs 2/1, the pair of hanging legs 2/1 are in sliding connection with the connecting piece 3/1 (shown by a dotted line in fig. 2), and the end part of the connecting piece 3/1 is fixedly connected with an operating handle 1/2 for operating the positioning assembly 2. The pair of multistage self-locking positioning hinges (Japanese buckles) 4/1 of the connecting seat assembly 1 are arranged at the front part of the connecting frame 1/1, the left multistage self-locking positioning hinge 1/4/1 is arranged at the left side of the connecting frame 1/1, and the right multistage self-locking positioning hinge 2/4/1 is arranged at the right side of the connecting frame 1/1. The pair of multistage self-locking positioning hinges (Japanese buckles) 4/1 is a pair of reverse multistage self-locking positioning hinges (reverse Japanese buckles) 3/4/1. The reverse multistage self-locking positioning hinge 3/4/1 is provided with a hinged main connecting end 1/3/4/1 and a hinged auxiliary connecting end 2/3/4/1, the hinged main connecting end 1/3/4/1 and auxiliary connecting end 2/3/4/1 can be self-locked in a set range, and the main connecting end 1/3/4/1 of the reverse multistage self-locking positioning hinge 3/4/1 is fixedly connected to the front part of the connecting frame 1/1. The three-rod assembly 3 is provided with two groups, the left three-rod assembly 1/3 is arranged on the left side of the connecting seat assembly 1, the right three-rod assembly 2/3 is arranged on the right side of the connecting seat assembly 1, the two pairs of vertical members 3/3 of the three-rod assembly 3 are a pair of front vertical members 1/3/3 and a pair of rear vertical members 2/3/3, the front vertical member 1/3/3 of the left three-rod assembly 1/3 is a left front vertical member 1/1/3/3, the rear vertical member 2/3/3 of the left three-rod assembly 1/3 is a left rear vertical member 1/2/3/3, the front vertical member 1/3/3 of the right three-rod assembly 2/3 is a right front vertical member 2/1/3/3, the rear vertical member 2/3/3 of the right three-rod assembly 2/3 is a right rear vertical member 2/2/3/3, The upper end parts of the front vertical pieces 1/3/3 are fixedly connected with the auxiliary connecting ends 2/3/4/1 of the pair of reverse multistage self-locking positioning hinges 3/4/1, the upper end parts of the rear vertical pieces 2/3/3 are fixedly connected with the connecting pieces 3/1, the left rear vertical piece 1/2/3/3 and the right rear vertical piece 2/2/3/3 are respectively provided with a positioning pin 4/3, and the two positioning pins 4/3 can respectively lean against the left front vertical piece 1/1/3/3 and the right front vertical piece 2/1/3/3. Two elastic pieces I2/2 of the operation positioning assembly 2 are arranged at the left and right positions of the connecting frame 1/1, one ends of the two elastic pieces I2/2 are respectively connected with the connecting piece 3/1 of the connecting seat assembly 1, and the other ends of the two elastic pieces I2/2 are respectively connected with the left front vertical piece 1/1/3/3 and the right front vertical piece 2/1/3/3 of the three-rod assembly 3. The pair of horizontal pieces 5/3 of the three-rod assembly 3 are a left horizontal piece 1/5/3 and a right horizontal piece 2/5/3, the lower end parts of the left rear vertical piece 1/2/3/3 and the right rear vertical piece 2/2/3 are respectively connected with the rear end parts of the left horizontal piece 1/5/3 and the right horizontal piece 2/5/3 in a sliding manner, the lower end parts of the left front vertical piece 1/1/3/3 and the right front vertical piece 2/1/3 are respectively connected with the left horizontal piece 1/5/3 and the right horizontal piece 2/5/3 in a sliding manner, the left horizontal piece 1/5/3 and the right horizontal piece 2/5/3 are connected with a front small connecting piece 6/3 and a rear small connecting rod 7/3 in a sliding manner, and the rear small connecting rod 7/3 is connected with the footrest 4 in a sliding manner. the two-dot chain line graph at the bottom of fig. 1 shows a state in which the foot rest of the multi-position chair is at the rearmost part of the chair.
With the above structure, an operation method of the multi-position chair foot rest is as follows.
The footrest 4 is positioned in the final position under the set chair by the two-piece resilient member I2/2. The person sits on the chair, rotates the operating handle 1/2 anticlockwise, and the rotating operating handle 1/2 drives the connecting piece 3/1 to rotate together with the left rear vertical piece 1/2/3/3 and the right rear vertical piece 2/2/3/3, and drives the left front vertical piece 1/1/3/3, the right front vertical piece 2/1/3/3 and a pair of reverse multistage self-locking positioning hinges 3/4/1 fixedly connected with the left front vertical piece 1/1/3/3 and the right front vertical piece to move forwards and upwards together. I.e. the parallelogram mechanism is moved in a forward and upward direction and the horizontal member 5/3, which is translated, is pushed to the desired position. The horizontal piece 5/3 is locked at a required position because the reverse multistage self-locking positioning hinge 3/4/1 can realize self-locking of the hinged main connecting end 1/3/4/1 and the auxiliary connecting end 2/3/4/1 at a set position level. At this point the footrest 4 is turned forwards around the rear small connecting rod 7/3, which is resting on the small front connecting piece 6/3. When the horizontal member 5/3 is pushed in line with the "rack position" set on the connection rack 1/1, uncertainty in the movement of the horizontal member 5/3/footrest 4 may occur. At this time, by the positioning pins 4/3 provided on the left rear vertical member 1/2/3/3 and the right rear vertical member 2/2/3/3, respectively, abutting against the left front vertical member 1/1/3/3 and the right front vertical member 2/1/3/3 rear vertical member, and under the combined action of the self-locking function of the reverse multistage self-locking positioning hinge 3/4/1, such uncertainty of movement is eliminated. I.e. the desired position of the horizontal member 5/3/footrest 4 is continued to be ensured. When the horizontal piece 5/3/footrest 4 is positioned at the highest position in front of the chair, the footrest 4 is turned backwards around the rear small connecting rod 7/3, and the operating handle 1/2 is reversely rotated again, so that the reverse multi-stage self-locking positioning hinge 3/4/1 loses the self-locking function, and the whole parallelogram mechanism is operated clockwise under the dead weight and the operating handle 1/2, and the footrest 4 is positioned at the final position under the set chair again by the two elastic pieces I2/2.
In summary, the invention is suitable for high and low grade chairs, and can be operated by one operating handle to realize the positioning and fixing of the foot rest in multiple positions, including the set highest and lowest positions. The chair has the advantages of simple and practical structure, convenient and reliable use, convenient and quick operation, elegance and comfort, and the chair back is matched, so that the sitting posture, the semi-lying or lying angle can be conveniently adjusted, the chair has a plurality of positions, the comfort of a human body can be fully met, and the chair is suitable for various states of leisure, sleeping and work. Thereby eliminating or reducing the harm caused by sedentary.
Claims (1)
1. A multi-position chair foot rest is composed of a connecting seat component, an operation positioning component, a three-rod component and a foot rest, and is characterized in that a connecting frame of the connecting seat component is fixedly connected below a chair seat, a pair of hanging feet are fixedly connected at a proper position of a certain edge part of the connecting frame, connecting pieces are movably connected to the pair of hanging feet, one end of each connecting piece extends outwards from the connecting frame, the end part of each connecting piece extending outwards from the connecting frame is fixedly connected with an operation handle of the operation positioning component, the connecting seat component is composed of a hinged main connecting end and a hinged auxiliary connecting end, the hinged main connecting end and the auxiliary connecting end can be self-locked in a set range, the main connecting end is fixedly connected to the other proper position of the connecting frame corresponding to the pair of hanging feet, the multi-stage self-locking positioning hinge is arranged at the left side of the connecting frame and is a multi-stage self-locking positioning hinge, the multi-stage self-locking positioning hinge is arranged at the right side of the connecting frame and is a three-rod component, the three-rod component is arranged at the left side and the right of the connecting seat component, the three-rod component is arranged at the left and the right of the three-rod component,
The two pairs of vertical members of the three-bar assembly are a pair of front vertical members and a pair of rear vertical members,
The front vertical piece of the left three-bar assembly is a left front vertical piece, the rear vertical piece of the left three-bar assembly is a left rear vertical piece, the front vertical piece of the right three-bar assembly is a right front vertical piece, the rear vertical piece of the right three-bar assembly is a right rear vertical piece,
The upper end part of the front vertical member is fixedly connected with the auxiliary connecting ends of the pair of multistage self-locking positioning hinges, the upper end part of the rear vertical member is fixedly connected with the connecting members,
The pair of horizontal pieces of the three-bar assembly are a left horizontal piece and a right horizontal piece, the lower end parts of the left rear vertical piece and the right rear vertical piece are respectively and movably connected with the rear end parts of the left horizontal piece and the right horizontal piece, the lower end parts of the left front vertical piece and the right front vertical piece are respectively and movably connected with a proper position of the left horizontal piece and the right horizontal piece, the overhanging parts of the left horizontal piece and the right horizontal piece are connected with the footrest,
The four-bar mechanism formed by the connecting seat component and the three-bar component is a parallelogram mechanism,
The vertical piece is provided with a locating pin, and the locating pin can lean against the vertical piece on the same side of the other vertical piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610638525.7A CN107684269B (en) | 2016-08-03 | Multi-position chair foot rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610638525.7A CN107684269B (en) | 2016-08-03 | Multi-position chair foot rest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107684269A CN107684269A (en) | 2018-02-13 |
| CN107684269B true CN107684269B (en) | 2024-09-10 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206518345U (en) * | 2016-08-03 | 2017-09-26 | 江山市奇栖正机电科技有限公司 | A kind of multiposition chair footrest rack |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206518345U (en) * | 2016-08-03 | 2017-09-26 | 江山市奇栖正机电科技有限公司 | A kind of multiposition chair footrest rack |
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Effective date of registration: 20200427 Address after: Jiangshan City, Zhejiang province Quzhou city Shimen town 324107 village Zhaitang Trillium Lane No. 7 Applicant after: JIANGSHAN QIQIZHENG ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province Xihu District 310024 double Town Luo Jia Dai No. 215 Applicant before: HANGZHOU QIQIZHENG TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20240816 Address after: 210000 Xuanwu Road, Xuanwu District, Nanjing, Jiangsu 699-1 Applicant after: Taixuan Technology (Nanjing) Co.,Ltd. Country or region after: China Address before: 324107 No. 7, Zhai Tang Lane, Yanling village, Shimen Town, Jiangshan City, Quzhou, Zhejiang Applicant before: JIANGSHAN QIQIZHENG ELECTROMECHANICAL TECHNOLOGY CO.,LTD. Country or region before: China |
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