CN207702083U - A kind of measuring instrument three-legged support - Google Patents
A kind of measuring instrument three-legged support Download PDFInfo
- Publication number
- CN207702083U CN207702083U CN201721928221.0U CN201721928221U CN207702083U CN 207702083 U CN207702083 U CN 207702083U CN 201721928221 U CN201721928221 U CN 201721928221U CN 207702083 U CN207702083 U CN 207702083U
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- leg
- locking
- accommodating chamber
- lower supporting
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of measuring instrument three-legged support.The three-legged support, including mounting base, supporting leg, the supporting leg is three, three supporting legs are set to the neighboring of the mounting base, the supporting leg includes upper supporting leg, lower supporting leg, support leg, one end of the upper supporting leg is flexibly connected with the neighboring of the mounting base, the upper supporting leg is provided along its length accommodating chamber, the lower leg sleeve is loaded in the accommodating chamber, the lower supporting leg can extend or shorten in the accommodating chamber, the terminal position of the lower supporting leg is equipped with the support leg, it is additionally provided with forced locking device on the upper supporting leg, the forced locking device can descend supporting leg when the lower supporting leg retracts the accommodating chamber upper end described in automatic locking, so that the lower supporting leg is fixed in the accommodating chamber.Measuring instrument three-legged support according to the present utility model can simplify the storage process of three-legged support, improve working efficiency, prevent support leg from accidentally injuring the generation of staff's phenomenon.
Description
Technical field
The utility model belongs to road survey equipment technology field, and in particular to a kind of measuring instrument three-legged support.
Background technology
When measuring mapping to road, the measuring instruments such as spirit level, theodolite are the instruments of core the most, for passing
For the measuring instrument of system, measuring instrument is often required for being positioned in the mounting base of three-legged support, three-legged support one side energy
It is enough adjusted the height and position of the measuring instrument, on the other hand also Different Ground landform can preferably be adapted to.
Current three-legged support includes mounting base and three supporting legs, supporting leg include again upper supporting leg, lower supporting leg and with lower branch
The support leg that leg is fixedly connected needs construction personnel to carry out length adjustment to three supporting legs when in use, so that installation
The mounting plane of seat is approximate horizontal, so that the leveling work for the measuring instrument installed on simplifying, improves working efficiency, using
After, in the accommodating chamber for the upper supporting leg that needs as possible to retract the lower supporting leg, it is used in combination positioned at the upper supporting leg lower end
Fastening bolt fastens the lower supporting leg, on the one hand prevents the three-legged support from supporting leg being descended to deviate from the upper branch in the handling process
The accommodating chamber of leg is accidentally injured, and the volume convenience in transport of three-legged support is on the other hand reduced.But it actually uses in transportational process, by
Manual operation is needed in the fastening of the lower supporting leg, construction personnel, which works, to be neglected, and the lower supporting leg abjection upper supporting leg is caused to accommodate
The phenomenon that chamber damages personnel happens occasionally.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of measuring instrument three-legged support, can simplify
The storage process of three-legged support improves working efficiency, prevents support leg from accidentally injuring the generation of staff's phenomenon.
To solve the above-mentioned problems, the utility model provides a kind of measuring instrument three-legged support, including mounting base, supporting leg,
The supporting leg is three, and three supporting legs are set to the neighboring of the mounting base, and the supporting leg includes upper supporting leg, lower branch
Leg, support leg, one end of the upper supporting leg are flexibly connected with the neighboring of the mounting base, and the upper supporting leg is square along its length
To equipped with accommodating chamber, the lower leg sleeve loaded in the accommodating chamber, the lower supporting leg can be extended in the accommodating chamber or
Person shortens, and the terminal position of the lower supporting leg is equipped with the support leg, and forced locking device is additionally provided on the upper supporting leg, described
Forced locking device can descend supporting leg when the lower supporting leg retracts the accommodating chamber upper end described in automatic locking, so that under described
Supporting leg is fixed in the accommodating chamber；The upper supporting leg is equipped with band heavy platform through-hole, and the lower supporting leg periphery wall is equipped with recessed in an axial direction
Slot, the forced locking device include locking shell, spring, locking cylinder, and the locking shell is correspondingly arranged at the band heavy platform
It through hole and is connect with the upper supporting leg, the concentric movable set of the locking cylinder is in the locking shell, and the locking
The spring is set between cylinder and the locking shell, and the spring one end is abutted with the locking shell, and the spring is another
One end is abutted with the locking cylinder, and the locking cylinder is the revolution axis body with the shaft shoulder, and the shaft shoulder can be with the band
It is abutted at the heavy platform of heavy platform through-hole, the locking cylinder is equipped with the first inclined-plane far from the spring one end and is answered in advance in the spring
It can be embedded in the groove under the action of power.
Preferably, the locking cylinder is equipped with blind hole close to the spring one end, and the spring can be embedded in the blind hole
In.
Preferably, the upper end end face of the lower supporting leg is equipped with the second inclined-plane, first inclined-plane and second inclined-plane phase
To being arranged and be mutually matched.
Preferably, the locking shell side is equipped with notch, and the external peripheral wall of locking post is equipped with convex block, the convex block energy
Enough it is embedded in the notch.
Preferably, the length of the accommodating chamber is L1, and the length of the lower supporting leg is L2, and the length of the support leg is
L3, the relationship between described L1, L2, L3 are：L1≥(L2+L3).
Preferably, it is additionally provided with handle on the outer wall of the upper supporting leg.
Measuring instrument three-legged support provided by the utility model avoids in the prior art through the length fixed knob
The lower supporting leg deviates from the accommodating chamber accidental injury construction after locking unreliable or forgetting locking when manually locking the lower supporting leg
The phenomenon that personnel, occurs, while also improving storage speed of three-legged support after measuring construction, improves work
Efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the measuring instrument three-legged support of the utility model embodiment；
Fig. 2 is the enlarged local section schematic diagram at A in Fig. 1；
Fig. 3 is the close-up schematic view at B in Fig. 1.
Reference numeral is expressed as：
1, mounting base；2, supporting leg；21, upper supporting leg；211, accommodating chamber；212, band heavy platform through-hole；22, lower supporting leg；221, recessed
Slot；222, the second inclined-plane；23, support leg；3, forced locking device；31, shell is locked；311, notch；32, spring；33, it locks
Cylinder；331, blind hole；332, convex block；333, the first inclined-plane；4, length fixed knob.
Specific implementation mode
To simplify narration process, the side that the orientation such as up, down, left, right, before and after used in the present embodiment are presented with Fig. 1
Position is reference.
In conjunction with referring to shown in Fig. 1 to 3, embodiment according to the present utility model provides a kind of measuring instrument three-legged support, packet
Mounting base 1, supporting leg 2 are included, the supporting leg 2 is three, and three supporting legs 2 are set to the neighboring of the mounting base 1, described
Supporting leg 2 can surround its vertical axial line close or far from the mounting base 1 with the link position of mounting base 1 and move, with
It is horizontal position to facilitate the upper plane for the mounting base 1 for adjusting the three-legged support, and the supporting leg includes upper supporting leg 21, lower supporting leg
22, support leg 23, one end of the upper supporting leg 21 are flexibly connected with the neighboring of the mounting base 1,21 edge of the upper supporting leg
Its length direction is equipped with accommodating chamber 211, and the lower supporting leg 22 is set in the accommodating chamber 211, and the lower supporting leg 22 can be
Elongation or shortening in the accommodating chamber 211, the terminal position of the lower supporting leg 22 are equipped with the support leg 23, the upper supporting leg
It is additionally provided with forced locking device 3 on 21, the forced locking device 3 can retract the accommodating chamber 211 in the lower supporting leg 22
Lower supporting leg 22 described in automatic locking when upper end, so that the lower supporting leg 22 is fixed in the accommodating chamber 211；The upper supporting leg 21
Equipped with band heavy platform through-hole 212,22 periphery wall of lower supporting leg is equipped with groove 221 in an axial direction, and the forced locking device 3 includes lock
Tight shell 31, spring 32, locking cylinder 33, the locking shell 31 be correspondingly arranged at the band heavy platform through-hole 212 and with it is described
Upper supporting leg 21 connects, the 33 concentric movable set of locking cylinder in the locking shell 31, and the locking cylinder 33 and
The spring 32 is set between the locking shell 31, and 32 one end of the spring is abutted with the locking shell 31, the spring
32 other ends are abutted with the locking cylinder 33, and the locking cylinder 33 is the revolution axis body with the shaft shoulder, and the shaft shoulder can
It is abutted at the heavy platform with heavy platform through-hole 212, the locking cylinder 33 is equipped with the first inclined-plane far from 32 one end of the spring
It 333 and can be embedded in the groove 221 under the action of 32 prestressing force of spring, certainly, also be set on the upper supporting leg 21
There is a length fixed knob 4, the length fixed knob 4 is to when using the measuring instrument three-legged support, to adjusting height
The three-legged support of degree is fixed the extension elongation of the lower supporting leg 22.
In the technical program, the effect of the length fixed knob 4 is only that the extension elongation of lower supporting leg 22 is fixed,
After use finishes the measuring instrument three-legged support, the length fixed knob 4 need to only be unscrewed, then by the lower supporting leg
22 push back along the direction of the accommodating chamber 211, instantly the upper end of supporting leg 22 close to the accommodating chamber 211 upper end when, the lock
Tight cylinder 33 will be forced to lift under the action of lower 22 shaft end of supporting leg, then, due to the effect of the spring 32, the lock
Tight cylinder 33 will be forced to pop up in the corresponding position of the groove 221, and be embedded into the groove 221, to make it is described under
Supporting leg 22 is locked in the accommodating chamber 211 and will not skid off；It is needed to the three feet branch before measuring job execution and starting
When frame is unfolded, it is only necessary to which construction personnel lifts the locking cylinder 33, and the locking cylinder 33 is made to move one along 32 direction of spring
Segment distance makes the end of the locking cylinder 33 deviate from the groove 221.This avoids pass through the length in the prior art
Degree fixed knob 4 lock when manually locking the lower supporting leg 22 it is unreliable or forget the lower supporting leg 22 after locking deviate from it is described
The phenomenon that accommodating chamber accidental injury construction personnel, occurs, while also improving storage speed of three-legged support after measuring construction
Degree, improves work efficiency.
Preferably, the locking cylinder 33 is equipped with blind hole 331 close to 32 one end of the spring, and the spring 32 can be embedded in
In the blind hole 331.The setting of the blind hole 331 is substantially to form an accommodation space to the spring 32 or accommodate logical
Road ensure that the release direction of the normal elastic force of the spring 32, keep the movement of the locking cylinder 33 more smoothly.
Preferably, the upper end end face of the lower supporting leg 22 is equipped with the second inclined-plane 222, first inclined-plane 333 and described the
Two inclined-planes 222 are oppositely arranged and are mutually matched, and the locking cylinder 33 is enable more easily to be embedded in the groove as a result,
In 221.
When needing to extend the lower supporting leg 22, need from the groove 221 to take off the locking cylinder 33 in time
Go out, at this point, this process for convenience, it is preferable that 31 side of locking shell is equipped with notch 311, outside the locking cylinder 33
Peripheral wall is equipped with convex block 332, and the convex block 332 can be embedded in the notch 311, and 332 one side of the convex block is for moving
On the other hand the carrier of the locking cylinder 33 since the convex block 332 is embedded in the notch 311, while playing institute again
State guiding role of the locking shell 31 to the locking cylinder 33.
Preferably, the length of the accommodating chamber 211 is L1, and the length of the lower supporting leg 22 is L2, the support leg 23
Length is L3, and the relationship between described L1, L2, L3 is：L1 >=(L2+L3), certainly, the numerical value unit of described L1, L2, L3 should
It is compared under the premise of unification, that is, it is one that the accommodating chamber 211, which can accommodate the lower supporting leg 22 and assemble therewith,
The support leg 23 risen makes the accidental injury of the support leg 23 apply at this point, since the support leg 23 is hidden in the accommodating chamber 211
The possibility of worker person further decreases.
Certainly, the transhipment of the three-legged support for convenience, it is preferable that be additionally provided with handle on the outer wall of the upper supporting leg 21
Hand, or it is equipped with shoulder strap.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with modification.
Claims (6)
1. a kind of measuring instrument three-legged support, including mounting base (1), supporting leg (2), the supporting leg (2) is three, three branch
Leg (2) is set to the neighboring of the mounting base (1), and the supporting leg includes upper supporting leg (21), lower supporting leg (22), support leg
(23), one end of the upper supporting leg (21) is flexibly connected with the neighboring of the mounting base (1), and the upper supporting leg (21) is along it
Length direction is equipped with accommodating chamber (211), and the lower supporting leg (22) is set in the accommodating chamber (211), the lower supporting leg (22)
It can extend or shorten in the accommodating chamber (211), the terminal position of the lower supporting leg (22) is equipped with the support leg
(23), which is characterized in that forced locking device (3) is additionally provided on the upper supporting leg (21), the forced locking device (3) can
The lower supporting leg (22) described in automatic locking when the lower supporting leg (22) retracts the upper end of the accommodating chamber (211), so that under described
Supporting leg (22) is fixed in the accommodating chamber (211)；The upper supporting leg (21) is equipped with band heavy platform through-hole (212), the lower supporting leg
(22) periphery wall is equipped with groove (221) in an axial direction, and the forced locking device (3) includes locking shell (31), spring (32), lock
Tight cylinder (33), the locking shell (31) are correspondingly arranged at the band heavy platform through-hole (212) and connect with the upper supporting leg (21)
Connect, movable set is interior in the locking shell (31) with one heart for the locking cylinder (33), and the locking cylinder (33) with it is described
The spring (32) is set between locking shell (31), described spring (32) one end is abutted with the locking shell (31), described
Spring (32) other end is abutted with the locking cylinder (33), and the locking cylinder (33) is the revolution axis body with the shaft shoulder, institute
State the shaft shoulder can with abutted at the heavy platform of the band heavy platform through-hole (212), the locking cylinder (33) is far from the spring (32)
One end is equipped with the first inclined-plane (333) and can be embedded in the groove (221) under the action of the spring (32) prestressing force.
2. three-legged support according to claim 1, which is characterized in that the locking cylinder (33) is close to the spring (32)
One end is equipped with blind hole (331), and the spring (32) can be embedded in the blind hole (331).
3. three-legged support according to claim 2, which is characterized in that the upper end end face of the lower supporting leg (22) is equipped with second
Inclined-plane (222), first inclined-plane (333) are oppositely arranged and are mutually matched with second inclined-plane (222).
4. three-legged support according to claim 3, which is characterized in that locking shell (31) side is equipped with notch
(311), locking cylinder (33) periphery wall is equipped with convex block (332), and the convex block (332) can be embedded in the notch (311)
In.
5. three-legged support as claimed in any of claims 1 to 4, which is characterized in that the length of the accommodating chamber (211)
Degree is L1, and the length of the lower supporting leg (22) is L2, and the length of the support leg (23) is L3, the pass between described L1, L2, L3
System is：L1≥(L2+L3).
6. three-legged support as claimed in any of claims 1 to 4, which is characterized in that outside the upper supporting leg (21)
Handle is additionally provided on wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721928221.0U CN207702083U (en) | 2017-12-21 | 2017-12-21 | A kind of measuring instrument three-legged support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721928221.0U CN207702083U (en) | 2017-12-21 | 2017-12-21 | A kind of measuring instrument three-legged support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207702083U true CN207702083U (en) | 2018-08-07 |
Family
ID=63031053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721928221.0U Expired - Fee Related CN207702083U (en) | 2017-12-21 | 2017-12-21 | A kind of measuring instrument three-legged support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207702083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187332A (en) * | 2018-09-04 | 2019-01-11 | 王本勋 | A kind of express highway pavement frictional force detection platform |
-
2017
- 2017-12-21 CN CN201721928221.0U patent/CN207702083U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187332A (en) * | 2018-09-04 | 2019-01-11 | 王本勋 | A kind of express highway pavement frictional force detection platform |
| CN109187332B (en) * | 2018-09-04 | 2021-02-05 | 湖北高路公路工程监理咨询有限公司 | Highway road surface friction force testing platform |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20191221 |