CN212008094U - Clamp for drawing instrument - Google Patents
Clamp for drawing instrument Download PDFInfo
- Publication number
- CN212008094U CN212008094U CN202020474098.5U CN202020474098U CN212008094U CN 212008094 U CN212008094 U CN 212008094U CN 202020474098 U CN202020474098 U CN 202020474098U CN 212008094 U CN212008094 U CN 212008094U
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- Prior art keywords
- force arm
- inclined force
- piece
- clamping piece
- rotating
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- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a clamp for a drawing instrument, which comprises an occlusion device, a connecting piece, a rotating device and a stretching device, wherein the occlusion device comprises an upper clamping piece, a lower clamping piece, an upper inclined force arm and a lower inclined force arm; the engaging device is used for clamping the civil grille pieces, the engaging device, the quadrilateral frame 2 and the rotating device are matched for use to fix the force for clamping the civil grille pieces, and the stretching device is used for directly measuring the displacement of pulling out the civil grille, thereby obtaining the deformation of the civil grille pieces; the utility model discloses utilize lever principle, simplified the use step of anchor clamps, through rotating the handle, realize the size of upper and lower clamping piece centre gripping geogrid power, can directly measure geogrid's deflection simultaneously, improved the availability factor of instrument greatly.
Description
Technical Field
The utility model relates to a geotechnical engineering technical field, especially an anchor clamps for drawing appearance.
Background
The drawing instrument is used as an important instrument for geotechnical tests and plays an important role in researching the mechanical property, the deformation performance and the like of the geogrid. The clamp on the common drawing instrument applies pressure to the clamping piece through the bolt and the nut so as to achieve the effect of clamping, but as a common experimental measuring instrument, the clamp must be frequently used in the process of using the drawing instrument, and the clamp on the common drawing instrument applies pressure to the clamping piece through the bolt and the nut, so that the clamping piece is cumbersome to take and place, and the clamping force is not easy to grasp. Therefore, the clamp which is simple in use steps and has proper clamping force for clamping the clamping piece is designed, and the clamping piece is prevented from falling off from the clamp.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, and provides an anchor clamps for drawing appearance, and this anchor clamps operating procedure is simple, easily continuous experiment operation.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a clamp for a drawing instrument comprises an occlusion device, a connecting piece, a rotating device and a stretching device; the occluding device and the connecting piece are arranged at one end of the drawing instrument, and the rotating device and the stretching device are arranged at the other end of the drawing instrument; the occlusion device comprises an upper clamping piece, a lower clamping piece, an upper inclined force arm and a lower inclined force arm; the upper inclined force arm and the lower inclined force arm are arranged on the same side of the upper clamping piece and the lower clamping piece; the upper inclined force arm is fixed at one end of the upper clamping piece and a fixed connection position forms an obtuse angle, the lower inclined force arm is fixed at one end of the lower clamping piece and another obtuse angle is formed at the fixed connection position, and the two obtuse angles are the same; a threaded rotating shaft is arranged at the joint of the upper inclined force arm and the lower inclined force arm, the upper inclined force arm and the lower inclined force arm are connected through the threaded rotating shaft, and sliding grooves are respectively arranged on the upper inclined force arm and the lower inclined force arm; the connecting piece is a quadrilateral frame, one side of the connecting piece is a rotating shaft, the rotating shaft is hinged with the upper inclined force arm and the lower inclined force arm, and the rotating shaft penetrates through the sliding grooves of the upper inclined force arm and the lower inclined force arm and slides transversely in the sliding grooves; one side of the connecting piece, which is not adjacent to the rotating shaft, is provided with a fixing bolt; the rotating device comprises a rotating handle; the stretching device comprises a stretching piece and a hollow sleeve, the hollow sleeve is fixedly embedded in the stretching piece, two ends of the hollow sleeve are respectively exposed at two sides of the stretching piece, a sliding shaft is arranged in one end of the hollow sleeve, one end of the sliding shaft slides in the hollow sleeve, and the other end of the sliding shaft is fixedly connected with a fixing bolt; the other end of the hollow sleeve is in threaded connection with the rotating handle.
Furthermore, the inner sides of the upper clamping piece and the lower clamping piece are respectively and fixedly provided with a rubber layer.
Furthermore, the sliding shaft is provided with scales, and the precision of the scales is 1 mm.
Furthermore, a fixing piece is arranged on the stretching piece and used for fixing the clamp on the drawing instrument.
The utility model discloses following beneficial effect has:
the utility model discloses utilize lever principle, simplified the use step of anchor clamps, through rotating the handle, realize the size of upper and lower clamping piece centre gripping geogrid power, can directly measure geogrid's deflection simultaneously, improved the availability factor of instrument greatly.
Drawings
Fig. 1 is a schematic view of a clamp structure for a drawing instrument of the present invention.
Fig. 2 is a schematic view of a partial engaging device of a clamp for a drawing instrument according to the present invention.
Fig. 3 is a schematic view of a connector of a clamp for a drawing instrument of the present invention.
Fig. 4 is a schematic view of a rotating device of a clamp for a drawing instrument of the present invention.
Fig. 5 is a view of the sliding shaft of the clamp for the drawing instrument of the present invention.
Among them are: 111. an upper clamping piece; 112. a lower clamping piece; 121. an arm of force is inclined upwards; 122. a lower inclined moment arm; 123. a chute; 124. a first rotating shaft; 2. a quadrilateral frame; 21. a second rotating shaft; 22. fixing the bolt; 31. rotating the handle; 32. a hollow sleeve; 321. a sliding shaft; 4. a tension member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, "first", "second" and the like do not indicate the degree of importance of the component parts, and thus, are not to be construed as limiting the present invention. The specific dimensions used in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.
As shown in fig. 1 to 5, a clamp for a drawing instrument comprises an engaging device, a quadrangular frame 2, a rotating handle 31 and a stretching device; the engaging device is used for clamping the civil grille pieces, the engaging device, the quadrilateral frame 2 and the rotating device are matched for use to fix the force for clamping the civil grille pieces, and the stretching device is used for directly measuring the displacement of pulling out the civil grille, thereby obtaining the deformation of the civil grille pieces; the occluding device and the quadrilateral frame 2 are arranged at one end of the drawing instrument, and the rotating device and the stretching device are arranged at the other end of the drawing instrument; the occluding device comprises an upper clip 111, a lower clip 112, an upper inclined force arm 121 and a lower inclined force arm 122; the upper inclined force arm 121 and the lower inclined force arm 122 are both arranged at the same side of the upper clamping piece 111 and the lower clamping piece 112; the upper inclined force arm 121 is fixed at one end of the upper clamping piece 111 and the fixed connection position forms an obtuse angle, the lower inclined force arm 122 is fixed at one end of the lower clamping piece 112 and the fixed connection position forms another obtuse angle, and the two obtuse angles are the same; a first rotating shaft 124 is arranged at the joint of the upper inclined force arm 121 and the lower inclined force arm 122, the upper inclined force arm 121 and the lower inclined force arm 122 are connected through the first rotating shaft 124, and sliding grooves 123 are respectively arranged on the upper inclined force arm 121 and the lower inclined force arm 122; a second rotating shaft 21 is arranged on one side of the quadrilateral frame 2, the second rotating shaft 21 is hinged with an upper inclined force arm 121 and a lower inclined force arm 122, and the rotating shaft passes through a sliding groove 123 of the upper inclined force arm 121 and the lower inclined force arm 122 and slides transversely in the sliding groove 123; one side of the quadrilateral frame 2, which is not adjacent to the rotating shaft, is provided with a fixing bolt 22; the rotating means comprise a rotating handle 31; the stretching device comprises a stretching piece 4 and a hollow sleeve 32, the hollow sleeve 32 is fixedly embedded in the stretching piece 4, two ends of the hollow sleeve 32 are respectively exposed at two sides of the stretching piece 4, a sliding shaft 321 is arranged in one end of the hollow sleeve 32, one end of the sliding shaft 321 slides in the hollow sleeve 32, and the other end of the sliding shaft 321 is fixedly connected with the fixing bolt 22; the other end of the hollow sleeve 32 is screwed with the turning handle 31.
In order to better clamp the geogrid, rubber layers are arranged on the inner sides of the upper clamping piece and the lower clamping piece, so that the friction force between the clamping pieces and the geogrid is increased.
In order to conveniently and accurately read the displacement of the drawing instrument, scales are arranged on the sliding shaft 321, and the precision of the scales is 1 mm.
In order to facilitate the installation of the clamp on the drawing instrument, a fixing member 41 is arranged on the stretching member 4, and the fixing member 41 is used for fixing the clamp on the drawing instrument.
The working principle is as follows: when the drawing instrument does not work, the drawing instrument is fixed in position, the rotating shaft of the quadrilateral frame 2 is pushed to transversely slide in the sliding groove 123 of the inclined force arm by rotating the rotating handle 31, so that the upper clamping piece 111 is driven to move downwards and the lower clamping piece 112 is driven to move upwards, finally, the aim of clamping the geogrid is achieved, at the moment, the drawing instrument starts to work, and the clamping pieces are pulled away from the geogrid through the stretching device. The moving distance of the drawing instrument is directly read through the scales on the sliding shaft 321, so that the deformation of the geogrid is rapidly calculated.
The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (4)
1. A anchor clamps for drawing appearance which characterized in that: comprises an occlusion device, a connecting piece, a rotating device and a stretching device;
the occluding device and the connecting piece are arranged at one end of the drawing instrument, and the rotating device and the stretching device are arranged at the other end of the drawing instrument;
the occlusion device comprises an upper clamping piece, a lower clamping piece, an upper inclined force arm and a lower inclined force arm; the upper inclined force arm and the lower inclined force arm are arranged on the same side of the upper clamping piece and the lower clamping piece;
the upper inclined force arm is fixed at one end of the upper clamping piece and a fixed connection position forms an obtuse angle, the lower inclined force arm is fixed at one end of the lower clamping piece and another obtuse angle is formed at the fixed connection position, and the two obtuse angles are the same;
the joint of the upper inclined force arm and the lower inclined force arm is provided with a threaded rotating shaft, the upper inclined force arm and the lower inclined force arm are connected through the threaded rotating shaft,
the upper inclined force arm and the lower inclined force arm are respectively provided with a sliding chute;
the connecting piece is a quadrangular frame,
one side of the connecting piece is provided with a rotating shaft, the rotating shaft is hinged with an upper inclined force arm and a lower inclined force arm, and the rotating shaft penetrates through sliding grooves of the upper inclined force arm and the lower inclined force arm and slides transversely in the sliding grooves;
one side of the connecting piece, which is not adjacent to the rotating shaft, is provided with a fixing bolt;
the rotating device comprises a rotating handle;
the stretching device comprises a stretching piece and a hollow sleeve, the hollow sleeve is fixedly embedded in the stretching piece, two ends of the hollow sleeve are respectively exposed at two sides of the stretching piece,
a sliding shaft is arranged in one end of the hollow sleeve, one end of the sliding shaft slides in the hollow sleeve, and the other end of the sliding shaft is fixedly connected with the fixing bolt; the other end of the hollow sleeve is in threaded connection with the rotating handle.
2. The clamp for a drawing instrument according to claim 1, characterized in that: and rubber layers are respectively fixedly arranged on the inner sides of the upper clamping piece and the lower clamping piece.
3. The clamp for a drawing instrument according to claim 1, characterized in that: the sliding shaft is provided with scales with the precision of 1 mm.
4. The clamp for a drawing instrument according to claim 1, characterized in that: the drawing device is characterized in that a fixing piece is arranged on the drawing piece, and the fixing piece is used for fixing the clamp on the drawing instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474098.5U CN212008094U (en) | 2020-04-03 | 2020-04-03 | Clamp for drawing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474098.5U CN212008094U (en) | 2020-04-03 | 2020-04-03 | Clamp for drawing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212008094U true CN212008094U (en) | 2020-11-24 |
Family
ID=73404980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020474098.5U Expired - Fee Related CN212008094U (en) | 2020-04-03 | 2020-04-03 | Clamp for drawing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212008094U (en) |
-
2020
- 2020-04-03 CN CN202020474098.5U patent/CN212008094U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |