A kind of portable tripod of engineering surveying instrument
The utility model relates to measurement servicing unit technical field, portable the three of specially a kind of engineering surveying instrument
Engineering surveying instrument is a kind of measuring instrument, be engineering construction planning and designing, construction and management stage into
Various orientations required by row measurement work, angle measurement, survey high, mapping and photogrammetric etc. instrument, engineering survey at ranging
Measuring appratus needs tripod to support, and tripod is for stablizing camera, to reach certain photographic effects, tripod
Positioning it is extremely important, tripod can be divided into wooden, high strength plastics material according to material classification, alloy material, steel material,
Pelelith, carbon fiber etc. are a variety of.
And existing tripod generallys use the branch that the fixedly adjustable section of screw is shunk when in use due to consideration that portable
Support leg, and the problem of prolonged use will cause screw stripped thread, while in measurement, tripod cannot be to the angle of measuring instrument
Degree is adjusted, and causes hand-held measuring device to measure the generation of inaccurate phenomenon, thus it is proposed that a kind of engineering surveying instrument
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of portable tripod of engineering surveying instrument,
Have the advantages that avoiding stripped thread and improving measurement accuracy, solves existing tripod when in use due to consideration that portable
The problem of formula generallys use the supporting leg that the fixedly adjustable section of screw is shunk, and prolonged use will cause screw stripped thread, simultaneously
In measurement, the angle of measuring instrument cannot be adjusted in tripod, and hand-held measuring device is caused to measure inaccurate phenomenon
The problem of generation.
The utility model provides the following technical solutions: a kind of portable tripod of engineering surveying instrument, including pedestal,
Connecting rod is connected with by transmission shaft driven on the pedestal, the bottom end of the connecting rod is fixedly connected with casing, described sleeve pipe
Inside be fixedly attached limited block, the middle part movable sleeve of the limited block is connected to support rod, opens up on the support rod limited
Position slot, the outer surface of the support rod are fixedly installed with protective shell, and the inside of the protective shell is equipped with movable block, the movable block
Side and casing-contact, the middle part movable sleeve of the movable block be connected to pumping rod, one end of the pumping rod extends to protection
The other end of the outside of shell, the pumping rod runs through the tube wall of casing and extends to the inside of limiting slot, outside the pumping rod
Surface is respectively with protective shell, casing and limiting slot pivot bush unit, and movable sleeve is connected to stable block respectively for the outer surface of the pumping rod
And limit spring, the top and bottom of the stable block are fixedly connected to brace, in the other end and protective shell of the brace
Portion is fixedly connected, and the middle part movable sleeve of the pedestal is connected to spill spin block, and swingle, institute are fixedly connected at the top of the spill spin block
The top for stating swingle is fixedly installed with swivel plate, and the top of the swivel plate is sequentially connected with rotor plate by drive block, institute
It states and is contacted at the top of the bottom and swivel plate of rotor plate, the bottom of the rotor plate is equipped with fixed block, the top of the fixed block
It is contacted with rotor plate, the middle part movable sleeve of the fixed block is connected to curved rod, the top of the curved rod and the fixed company of rotor plate
It connects, the bottom of the fixed block is fixedly installed with curved pipe, and the curved pipe is located at the outside of curved rod, the bottom of the curved rod
End is fixedly installed with sole piece, the outer surface of the sole piece and the inner wall pivot bush unit of curved pipe, the top of the sole piece and arc
The bottom end of bar contacts, and the outer surface of the curved pipe is fixedly connected with firm block, the left side of the firm block and the fixed company of pedestal
It connects, the outer surface movable sleeve of the curved rod is connected to returning spring, and one end of the returning spring is fixedly connected with sole piece, described
The other end of returning spring is fixedly connected with the bottom of fixed block.
Preferably, the quantity of the connecting rod is three, and the angle between two adjacent connecting rods is 120 degree.
Preferably, the top of the swingle extends to the outside of pedestal, in the outer surface and pedestal of the swingle
Portion's pivot bush unit.
Preferably, one end of the limit spring is fixedly connected with block is stablized, the other end of the limit spring and movement
Block is fixedly connected.
Preferably, threaded rod is threaded on the right side of the fixed block, the left end of the threaded rod is contacted with curved rod.
Preferably, the outer surface movable sleeve of the support rod is connected to receiving block, the outer surface of the receiving block and casing
Middle part is fixedly attached.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, the portable tripod of the engineering surveying instrument, by the cooperation of pumping rod and limiting slot, to being propped up after movement
The position of strut is adjusted, in addition the cooperation of limit spring, while using the recovery of limit spring, on the one hand make pull
Bar is bonded even closer with limiting slot, has on the other hand reached the fixation convenient for releasing pumping rod to support rod, while limiting
Instead of the fixation of screw under the action of the spring of position, to achieve the effect that avoid stripped thread.
2, the portable tripod of the engineering surveying instrument, by the transmission connection of rotor plate and drive block, convenient for pair
The angle of measuring instrument is adjusted, avoid typical tripod cannot rotate angle cause hand-held measuring device measurement inaccuracy
The generation of phenomenon, thus achieved the effect that improve measurement accuracy, in addition the cooperation of curved rod, fixed block and threaded rod, just
The position of rotor plate is fixed after to rotation, to achieve the effect that stable rotation Board position.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the partial structural diagram of Fig. 1；
Fig. 3 is enlarged structure schematic diagram at the A in Fig. 1.
In figure: 1, pedestal；2, transmission shaft；3, connecting rod；4, casing；5, limited block；6, support rod；7, limiting slot；8, it protects
Protective case；9, movable block；10, pumping rod；11, stablize block；12, limit spring；13, brace；14, spill spin block；15, swingle；16,
Swivel plate；17, drive block；18, rotor plate；19, fixed block；20, curved rod；21, curved pipe；22, sole piece；23, block is consolidated；
24, returning spring；25, threaded rod；26, receiving block.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3, a kind of portable tripod of engineering surveying instrument, including pedestal 1 are please referred to, passes through biography on pedestal 1
Moving axis 2 is sequentially connected with connecting rod 3, and the quantity of connecting rod 3 is three, and the angle between two adjacent connecting rods 3 is 120
Degree, the bottom end of connecting rod 3 are fixedly connected with casing 4, and the inside of casing 4 has been fixedly attached limited block 5, and the middle part of limited block 5 is living
Dynamic to be socketed with support rod 6, the outer surface movable sleeve of support rod 6 is connected to receiving block 26, in the outer surface of receiving block 26 and casing 4
Portion is fixedly attached, and limiting slot 7 is offered on support rod 6, and the outer surface of support rod 6 is fixedly installed with protective shell 8, protective shell 8
Inside is equipped with movable block 9, and the side of movable block 9 is contacted with casing 4, and the middle part movable sleeve of movable block 9 is connected to pumping rod 10, takes out
One end of pull rod 10 extends to the outside of protective shell 8, and the other end of pumping rod 10 runs through the tube wall of casing 4 and extends to limit
The inside of slot 7, the outer surface of pumping rod 10 with 7 pivot bush unit of protective shell 8, casing 4 and limiting slot, pass through pumping rod 10 respectively
With the cooperation of limiting slot 7, the position of mobile back support rod 6 is adjusted, movable sleeve is connected to respectively for the outer surface of pumping rod 10
Stablize block 11 and limit spring 12, one end of limit spring 12 to be fixedly connected with block 11 is stablized, the other end of limit spring 12 and
Movable block 9 is fixedly connected, in addition the cooperation of limit spring 12, while using the recovery of limit spring 12, on the one hand to take out
Pull rod 10 is bonded even closer with limiting slot 7, has on the other hand reached convenient for releasing fixation of the pumping rod 10 to support rod 6,
The top and bottom for stablizing block 11 is fixedly connected to brace 13, is fixedly connected inside the other end and protective shell 8 of brace 13, base
The middle part movable sleeve of seat 1 is connected to spill spin block 14, and the top of spill spin block 14 is fixedly connected with swingle 15, the top of swingle 15
Extend to the outside of pedestal 1, the outer surface of swingle 15 and the middle part pivot bush unit of pedestal 1, the fixed peace in the top of swingle 15
Equipped with swivel plate 16, the top of swivel plate 16 is sequentially connected with rotor plate 18, the bottom of rotor plate 18 and rotation by drive block 17
The top of rotating plate 16 contacts, and the bottom of rotor plate 18 is equipped with fixed block 19, and the top of fixed block 19 is contacted with rotor plate 18, fixed
The middle part movable sleeve of block 19 is connected to curved rod 20, and the top of curved rod 20 is fixedly connected with rotor plate 18, the right side of fixed block 19
It is threaded with threaded rod 25, the left end of threaded rod 25 is contacted with curved rod 20, and the bottom of fixed block 19 is fixedly installed with arc
Pipe 21, curved pipe 21 are located at the outside of curved rod 20, and the bottom end of curved rod 20 is fixedly installed with sole piece 22, the appearance of sole piece 22
The top of the inner wall pivot bush unit in face and curved pipe 21, sole piece 22 is contacted with the bottom end of curved rod 20, the outer surface of curved pipe 21
It is fixedly connected with firm block 23, the left side of firm block 23 is fixedly connected with pedestal 1, and the outer surface movable sleeve of curved rod 20 is connected to back
Multiple spring 24, one end of returning spring 24 are fixedly connected with sole piece 22, the other end of returning spring 24 and the bottom of fixed block 19
It is fixedly connected.
Working principle: measuring instrument is placed on rotor plate 18, if carrying out rotation angle, rotating threaded rod 25 first,
Then rotary motion plate 18, curved rod 20 is fixed in rotation to position appropriate convolution threaded rod 25, if length is adjusted
Degree then pulls pumping rod 10 first, and the mobile drive movable block 9 of pumping rod 10 compresses limit spring 12, until pull
Bar 10 is separated with limiting slot 7, then moves support rod 6, is moved to suitable position, unclamps pumping rod 10, and limit spring 12 is returned
Pumping rod 10 is driven to enter in limiting slot 7 again.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.