CN107715941A - A kind of leg structure of collapsible of pantograph testboard - Google Patents
A kind of leg structure of collapsible of pantograph testboard Download PDFInfo
- Publication number
- CN107715941A CN107715941A CN201711035153.XA CN201711035153A CN107715941A CN 107715941 A CN107715941 A CN 107715941A CN 201711035153 A CN201711035153 A CN 201711035153A CN 107715941 A CN107715941 A CN 107715941A
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- CN
- China
- Prior art keywords
- arc
- table leg
- spring piece
- shaped spring
- fastening rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Tables And Desks Characterized By Structural Shape (AREA)
Abstract
The invention discloses a kind of leg structure of collapsible of pantograph testboard, including, the first table leg being arranged at below desktop, the first table leg inside is telescopic cavity, the second table leg is provided with telescopic cavity, the second table leg bottom is provided with feet；First table leg is provided with chute, and latch segment is provided with chute, and latch segment is connected with top-fastening rod one end, and the top-fastening rod other end rotatably assembles after passing through arc-shaped spring piece, containment vessel with locking head；With being provided with arc block plate on the right side of arc-shaped spring piece contact position, arc block plate holds out against and contacted top-fastening rod with arc-shaped spring piece；Arc-shaped spring piece is made of elastomeric material；Containment vessel, including, installation cavity, arc-shaped spring piece is installed in installation cavity；It relative can be slided between top-fastening rod and containment vessel, be additionally provided with locking cylinder on containment vessel, top-fastening rod passes through locking cylinder；The inner cylinder of locking drum outer wall and locking head is assembled by threaded engagement；Latch segment and the second table leg hold out against fixation.The present invention is simple in construction, easy to use.
Description
Technical field
The present invention relates to experiment equipment technology field, more particularly to a kind of leg structure of collapsible of pantograph testboard.
Background technology
Pantograph is arranged on the roof of locomotive or motor-car, and it obtains the electric of electric energy in electrically-driven car from contact net
Equipment, pantograph can be divided to single armed bow and both arms to bend two kinds, by slide plate, upper framework, lower arm rod, chassis, rising bow spring, transmission gas
The parts such as cylinder composition, load current are by contact line and the smooth degree of pantograph pan contact surface, it and slide plate and contact line
Between contact, transition resistance, contact area it is relevant, depending on the interaction between pantograph and contact net.
The height of current existing pantograph dynamic characteristic test experimental bench is all fixed mostly, it is not possible to is adjusted
Section, still, operator needs to be adjusted the height of experimental bench according to itself rise and is tested or made with more preferable completion sometimes
User uses more comfortable, and because user uses, uncomfortable have can if testing stand height can not adjust
Test efficiency can be caused low and add the body burden of user.
Therefore applicant feels the need to design a kind of leg structure of collapsible of pantograph testboard, and it can be according to user
Be actually needed adjustment pantograph testboard height so that user use it is more comfortable.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of pantograph test
The leg structure of collapsible of platform.
To achieve the above object, the invention provides a kind of leg structure of collapsible of pantograph testboard, including, it is arranged at desktop
First table leg of lower section, the first described table leg inside is telescopic cavity, and the second table leg is provided with described telescopic cavity, described
Second table leg bottom is provided with feet；
The first described table leg is provided with chute, and latch segment, described latch segment and top-fastening rod one are provided with described chute
End connection, the described top-fastening rod other end rotatably assemble after passing through arc-shaped spring piece, containment vessel with locking head；
Described top-fastening rod on the right side of arc-shaped spring piece contact position with being provided with arc block plate, described arc block plate and arc-shaped spring piece
Hold out against contact；Described arc-shaped spring piece is made of elastomeric material；
Described containment vessel, including, installation cavity, arc-shaped spring piece is installed in described installation cavity；
It relative can be slided between described top-fastening rod and containment vessel, be additionally provided with locking cylinder on described containment vessel, top-fastening rod is worn
Cross locking cylinder；Described locking drum outer wall and the inner cylinder of locking head are assembled by threaded engagement；Described latch segment and the second table
Leg holds out against fixation.
As a further improvement on the present invention, described feet external stability has one layer of rubber layer.
As a further improvement on the present invention, four sides in described arc-shaped spring piece surrounding and installation cavity have to
Few 3 millimeters distance.
As a further improvement on the present invention, the first table leg is hinged with desktop, and table leg can relatively rotate with desktop.
As a further improvement on the present invention, described latch segment is provided with the second hangnail, the second described table leg and lock
Tight block contact surface is provided with the first hangnail, and the first described hangnail and the second hangnail are mutually twisted fixation.
As a further improvement on the present invention, described locking head is provided with rounded channels, and described rounded channels are with being arranged on
Sphere on top-fastening rod is rotatably assembled, and lubricating oil is provided between described rounded channels and sphere.
The beneficial effects of the invention are as follows：The present invention is simple in construction, easy to use, and the height of experimental bench can be adjusted
It is whole, be advantageous to staff and preferably tested and easy to operate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the leg structure of collapsible embodiment of pantograph testboard of the present invention.
Fig. 2 is enlarged drawing at F1 in Fig. 1.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Referring to Fig. 1-Fig. 2, a kind of leg structure of collapsible of pantograph testboard, including, the first table leg being arranged at below desktop 100
200, the described inside of the first table leg 200 is telescopic cavity 201, and the second table leg 300 is provided with described telescopic cavity 201, described
The bottom of the second table leg 300 be provided with feet 310, the described external stability of feet 310 has one layer of rubber layer, and rubber layer is used to increase
Feet 310 and the frictional force on ground, to prevent table leg from sliding；
The first described table leg 200 is provided with chute 202, and latch segment 510, described locking are provided with described chute 202
Block 510 is connected with the one end of top-fastening rod 520, the described other end of top-fastening rod 520 through arc-shaped spring piece 710, after containment vessel 600 with
Locking head 530 rotatably assembles；
Described top-fastening rod on the right side of the contact position of arc-shaped spring piece 710 with being provided with arc block plate 720, described arc block plate and arc
Spring leaf 720 holds out against contact；
Described arc-shaped spring piece is made of elastomeric material, such as elastic sheet metal, flexible plastic sheet；
Described containment vessel 600, including, installation cavity 601, arc-shaped spring piece 710 is installed in described installation cavity 601, it is described
The surrounding of arc-shaped spring piece 710 and installation cavity in four sides have at least 3 millimeters of distance, this is primarily to give arc
The deformation of spring leaf, which provides, allows bit space；
Relative it can be slided between described top-fastening rod 520 and containment vessel 600（Moved in its axial direction in top-fastening rod）, it is described
Locking cylinder 610 is additionally provided with containment vessel 600, top-fastening rod 520 passes through locking cylinder 610；
The inner cylinder 532 of the described outer wall of locking cylinder 610 and locking head 530 is assembled by threaded engagement；
Described latch segment and the second table leg holds out against fixation；
When needing to adjust table leg height, first, by locking head rotation so that locking head moves right, now, described top-fastening rod
It can be moved right in the presence of arc-shaped spring piece and departs from the second table leg to drive latch segment to move right, now can be by the
Two table legs are extracted out from telescopic cavity to adjust its height.
Further, four table legs are provided with below described desktop, can be by the in order to which aspect adjusts table leg highly one by one
One table leg is hinged with desktop, so that table leg can relatively rotate with desktop, can be first by table leg so before table leg length is adjusted
Rotation, so that table leg adjusts again after not contacted with bottom surface so that table leg adjustment is more convenient.
Further, described latch segment 410 is provided with the second hangnail 420, and the second described table leg contacts with latch segment
Face is provided with the first hangnail 410, and the first described hangnail and the second hangnail are mutually twisted fixation, so as to improve latch segment and second
Frictional force between table leg is preferably to fix the second table leg.
Further, described locking head 530 is provided with rounded channels 531, and described rounded channels 531 are with being arranged on top-fastening rod
Sphere 521 on 520 is rotatably assembled, and lubricating oil is provided between described rounded channels and sphere.In use, this structure can
To reduce the frictional force between top-fastening rod and locking head so that user it is more laborsaving.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (6)
1. a kind of leg structure of collapsible of pantograph testboard, including, the first table leg being arranged at below desktop, it is characterized in that：It is described
The first table leg inside be telescopic cavity, the second table leg is installed, the second described table leg bottom is provided with table in described telescopic cavity
Pin；
The first described table leg is provided with chute, and latch segment, described latch segment and top-fastening rod one are provided with described chute
End connection, the described top-fastening rod other end rotatably assemble after passing through arc-shaped spring piece, containment vessel with locking head；
Described top-fastening rod on the right side of arc-shaped spring piece contact position with being provided with arc block plate, described arc block plate and arc-shaped spring piece
Hold out against contact；Described arc-shaped spring piece is made of elastomeric material；
Described containment vessel, including, installation cavity, arc-shaped spring piece is installed in described installation cavity；
It relative can be slided between described top-fastening rod and containment vessel, be additionally provided with locking cylinder on described containment vessel, top-fastening rod is worn
Cross locking cylinder；Described locking drum outer wall and the inner cylinder of locking head are assembled by threaded engagement；Described latch segment and the second table
Leg holds out against fixation.
2. a kind of leg structure of collapsible of pantograph testboard as claimed in claim 1, it is characterized in that：Described feet external stability
There is one layer of rubber layer.
3. a kind of leg structure of collapsible of pantograph testboard as claimed in claim 1, it is characterized in that：Described arc-shaped spring piece four
Week has at least 3 millimeters of distance with four sides in installation cavity.
4. a kind of leg structure of collapsible of pantograph testboard as claimed in claim 1, it is characterized in that：First table leg is cut with scissors with desktop
Connect, table leg can relatively rotate with desktop.
5. a kind of leg structure of collapsible of pantograph testboard as claimed in claim 1, it is characterized in that：Described latch segment is provided with
Second hangnail, the second described table leg are provided with the first hangnail, described the first hangnail and the second hangnail with latch segment contact surface
It is mutually twisted fixation.
6. a kind of leg structure of collapsible of pantograph testboard as claimed in claim 1, it is characterized in that：Described locking head is provided with
Rounded channels, described rounded channels are rotatably assembled with the sphere being arranged on top-fastening rod, and between described rounded channels and sphere
Provided with lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035153.XA CN107715941B (en) | 2017-10-30 | 2017-10-30 | Table leg structure of pantograph testboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035153.XA CN107715941B (en) | 2017-10-30 | 2017-10-30 | Table leg structure of pantograph testboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107715941A true CN107715941A (en) | 2018-02-23 |
| CN107715941B CN107715941B (en) | 2023-03-14 |
Family
ID=61203325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711035153.XA Active CN107715941B (en) | 2017-10-30 | 2017-10-30 | Table leg structure of pantograph testboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107715941B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089287A1 (en) * | 2001-11-09 | 2003-05-15 | Chuen-Jong Tseng | Table with telescopic leg unit |
| JP3163497U (en) * | 2010-04-27 | 2010-10-21 | 呉 耀全 | Chair control device lead control rod |
| CN201743276U (en) * | 2010-08-02 | 2011-02-16 | 北京励耕家具有限公司 | Table leg |
| CN204561472U (en) * | 2015-04-19 | 2015-08-19 | 宿州学院 | A kind of desk or chair legs height adjuster |
| CN205795252U (en) * | 2016-05-25 | 2016-12-14 | 长安大学 | A kind of adjustable-height and the desk turned to |
| CN207493732U (en) * | 2017-10-30 | 2018-06-15 | 大同新成新材料股份有限公司 | A kind of leg structure of collapsible of pantograph testboard |
-
2017
- 2017-10-30 CN CN201711035153.XA patent/CN107715941B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030089287A1 (en) * | 2001-11-09 | 2003-05-15 | Chuen-Jong Tseng | Table with telescopic leg unit |
| JP3163497U (en) * | 2010-04-27 | 2010-10-21 | 呉 耀全 | Chair control device lead control rod |
| CN201743276U (en) * | 2010-08-02 | 2011-02-16 | 北京励耕家具有限公司 | Table leg |
| CN204561472U (en) * | 2015-04-19 | 2015-08-19 | 宿州学院 | A kind of desk or chair legs height adjuster |
| CN205795252U (en) * | 2016-05-25 | 2016-12-14 | 长安大学 | A kind of adjustable-height and the desk turned to |
| CN207493732U (en) * | 2017-10-30 | 2018-06-15 | 大同新成新材料股份有限公司 | A kind of leg structure of collapsible of pantograph testboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107715941B (en) | 2023-03-14 |
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