CN207832196U - Forestry compass - Google Patents

Forestry compass Download PDF

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Publication number
CN207832196U
CN207832196U CN201820285768.1U CN201820285768U CN207832196U CN 207832196 U CN207832196 U CN 207832196U CN 201820285768 U CN201820285768 U CN 201820285768U CN 207832196 U CN207832196 U CN 207832196U
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China
Prior art keywords
compass
frame
sliding block
ball
support base
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CN201820285768.1U
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Chinese (zh)
Inventor
薛沛沛
齐代华
孟祥江
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CHONGQING ACADEMY OF FORESTRY
Southwest University
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CHONGQING ACADEMY OF FORESTRY
Southwest University
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Abstract

The utility model discloses a kind of forestry compass, including A-frame, horizontal mechanism, compass and telescope, A-frame is connect by horizontal mechanism with compass, telescope is mounted on the top of compass, horizontal mechanism includes pedestal, A-frame is hinged on pedestal, side of the pedestal far from A-frame is provided with hemispheric first groove, the bottom of pedestal offers through-hole, first groove internal clearance is combined with ball, the stepped hole of the centre of sphere across ball is offered in ball, stepped hole internal clearance is combined with the sliding block for stretching out stepped hole, the lower end of sliding block is fixedly connected with drawstring, drawstring is connected with clump weight across stepped hole, support base is connected on compass, the second groove with ball clearance fit is provided on support base, the blind hole coordinated with sliding block is equipped in second groove.The utility model is fast to the leveling speed of compass, leveling difficulty is low when carrying out Forestry Investigation.

Description

Forestry compass
Technical field
The utility model is related to forest survey equipment technical field more particularly to a kind of forestry compass.
Background technology
Forestry compass has the function of a variety of measurements such as magnetic orientation and distance, level, height difference, slope angle, is mainly used in gloomy Woods generaI investigation, the measurement in farmland, water conservancy and common engineering, current forestry compass is mainly by A-frame, horizontal mechanism, compass And telescope composition.
User is generally had to carry out leveling to compass, that is, passed through before being measured using forestry compass Compass is adjusted to horizontality by horizontal mechanism, and current leveling mode is usually to first pass through the supporting leg of A-frame to compass Levelness carry out coarse adjustment, then by rotating leveling nut, fine tuning is carried out by watching the air-bubble level on horizontal mechanism, But the difficulty of such general leveling of leveling mode is larger, leveling when be also required to multiple leveling nuts of rotation slowly, cause The speed of leveling is also slow, and many inconvenience are brought to Forestry Investigation work.
Utility model content
In view of this, the purpose of this utility model is to provide one kind when carrying out Forestry Investigation, to the leveling speed of compass The forestry compass that degree is fast, leveling difficulty is low.
The utility model solves above-mentioned technical problem by following technological means:
Forestry compass, including A-frame, horizontal mechanism, compass and telescope, the A-frame pass through Horizontal machine Structure is connect with compass, and the telescope is mounted on the top of compass, and the horizontal mechanism includes pedestal, and the A-frame is hinged On pedestal, side of the pedestal far from A-frame is provided with hemispheric first groove, and the bottom of the pedestal opens up There are through-hole, the first groove internal clearance to be combined with ball, the stepped hole of the centre of sphere across ball, institute are offered in the ball It states stepped hole internal clearance and is combined with the sliding block for stretching out stepped hole, the lower end of the sliding block is fixedly connected with drawstring, and the drawstring is worn It crosses stepped hole and is connected with clump weight, support base is connected on the compass, is provided on the support base and matches with ball gap The second groove closed, second groove is interior to be equipped with the blind hole coordinated with sliding block.
What is reached has the technical effect that, in use, first having propped up A-frame, pedestal is mounted on A-frame, is first passed through A-frame carries out coarse adjustment to the levelness of pedestal, and then ball is placed in pedestal, sliding block is inserted into stepped hole, draws Clump weight is connect by rope across stepped hole with lanyard, and by pulling drawstring, ball rolls in pedestal, until drawstring is straightened, At this point, sliding block in stepped hole straight up, then the blind hole of support base is directed at sliding block so that sliding block is inserted into blind hole and completes The leveling of compass, entire leveling process is very simple, easy to operate, and leveling speed is fast.
Further, elastic string is connected on the support base, the one end of the elastic string far from support base is connected with first It links up with, the first hanging ring is connected on the A-frame.After compass is deleveled, tensile elasticity rope is hung over first On first hanging ring, ball is tightly pressed in pedestal using the tensile stress of elastic string, is avoided when measuring, ball rolls Precision that is dynamic and influencing measurement.
Further, the clump weight is the ceiling hammer of triangular pyramidal shape.When in use, the ceiling hammer of triangular pyramidal shape can It is quickly static, the time required to reducing leveling.
Further, the one end of the drawstring far from sliding block is connected with the second hook, and the ceiling hammer end face center, which is fixed, to be connected It is connected to the second hanging ring.In use, drawstring passes through stepped hole, the second hanging ring on ceiling hammer is directly hung over to the second hook of drawstring On, use is very convenient.
Further, the bottom end of the A-frame is hinged with bottom plate.When in use, the setting of bottom plate make A-frame with The contact area bigger on ground, the stability of support is more preferable, avoids falling down there is a situation where this compass and occurs.
Further, the fastening bolt of locking support seat and sliding block is provided on the support base.It is recessed that sliding block is inserted into second After in slot, fastening bolt can be utilized to fasten support base and sliding block, support base is avoided to move, and influence the essence measured Degree.
The beneficial effects of the utility model:
1. the utility model pulls drawstring straight down using ceiling hammer, so that sliding block is vertical by the rolling of ball, most Support base is placed on ball and sliding block afterwards, leveling speed is fast, and leveling is also very accurate;
2. it is easy to operate when the utility model leveling, it is easy to operate;
3. the stability of the utility model support is good, can occur to avoid being fallen down there is a situation where this compass.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model forestry compass;
Fig. 2 is the enlarged drawing at A in Fig. 1;
Fig. 3 is the enlarged drawing at B in Fig. 1.
Wherein, A-frame 1, compass 2, telescope 3, pedestal 4, through-hole 5, ball 6, stepped hole 7, sliding block 8, drawstring 9, hang Plumb bob 10, support base 11, elastic string 12, first link up with the 13, first hanging ring 14, second link up with the 15, second hanging ring 16, bottom plate 17, Fastening bolt 18.
Specific implementation mode
The utility model is described in detail below with reference to attached drawing:
As shown in FIG. 1 to 3
Forestry compass, including A-frame 1, horizontal mechanism, compass 2 and telescope 3, A-frame 1 pass through Horizontal machine Structure is connect with compass 2, and telescope 3 is mounted on the top of compass 2, and horizontal mechanism includes pedestal 4, and A-frame 1 is hinged on pedestal 4 On, upside of the pedestal 4 far from A-frame 1 is equipped with hemispheric first groove, and the bottom of pedestal 4 offers through-hole 5, and first is recessed Slot internal clearance is combined with ball 6, and the stepped hole 7 across the centre of sphere of ball 6 is offered in ball 6, and 7 internal clearance of stepped hole is combined with The sliding block 8 of stepped hole 7 is stretched out, the lower end of sliding block 8 is fixedly connected with drawstring 9, and drawstring 9 is connected with clump weight, sieve across stepped hole 7 It is connected with support base 11 on 2 instrument of disk, the second groove with 6 clearance fit of ball is provided on the downside of support base 11, second is recessed The blind hole coordinated with sliding block 8 is equipped in slot.
Elastic string 12 is connected on the support base 11, the one end of the elastic string 12 far from support base 11 is connected with first 13 are linked up with, the first hanging ring 14 is connected on the A-frame.When A-frame inherently places more smooth, work as sieve After disk 2 is deleveled, tensile elasticity rope 12 hangs over the first hook 13 on first hanging ring 14, utilizes the stretching of elastic string 12 Ball 6 is tightly pressed in pedestal 4 by power, is avoided when measuring, and ball 6 occurs to roll and influence the precision measured.
The clump weight is the ceiling hammer 10 of triangular pyramidal shape.When in use, the ceiling hammer 10 of triangular pyramidal shape can be fast Speed is static, the time required to reducing leveling;In utilization, the quality of ceiling hammer is larger, when ceiling hammer vertically downward when, can be by circle Ball is firmly secured on pedestal, is avoided in use, ball rolls.
The one end of the drawstring 9 far from sliding block 8 is connected with the second hook 15, and 10 end face center of the ceiling hammer is fixedly connected There is the second hanging ring 16.In use, drawstring 9 passes through stepped hole 7, the second hanging ring 16 on ceiling hammer 10 is directly hung over into drawstring 9 On second hook 15, use is very convenient.
The bottom end of the A-frame 1 is hinged with bottom plate 17.When in use, the setting of bottom plate 17 make A-frame 1 with The contact area bigger on ground, the stability of support is more preferable, avoids falling down there is a situation where this forestry compass and occurs.
The fastening bolt 18 of locking support seat 11 and sliding block 8 is provided on the support base 11.It is recessed that sliding block 8 is inserted into second After in slot, support base 11 and sliding block 8 can be fastened using fastening bolt 18, support base 11 is avoided to move, and influenced The precision of measurement.
The application method of the utility model is as follows:
In use, first having propped up A-frame 1, pedestal 4 is mounted on A-frame 1, ball 6 is then placed on pedestal In 4, sliding block 8 is inserted into stepped hole 7, drawstring 9 passes through stepped hole 7, and the second hanging ring 16 on ceiling hammer 10 is hung over second On hook 15, by pulling drawstring 9, ball 6 to roll in the pedestal 4, until drawstring 9 is straightened, at this point, sliding block 8 is in stepped hole 7 Straight up inside, tensile elasticity rope 12 hangs over the first hook 13 on first hanging ring 14, will using the tensile stress of elastic string 12 Ball 6 is tightly pressed in pedestal 4, then the blind hole of support base 11 is directed at sliding block 8 so that sliding block 8 is inserted into blind hole, support base 11 are supported on ball 6, and rotational fastener bolt 18 fastens support base 11 in sliding block 8, avoids support base 11 from moving, then Forest surveying can be carried out by rotating telescope 3.
In addition, three supporting legs of the A-frame of the utility model are all made of telescopic rod, wait when in use, tune can be facilitated The height of whole A-frame, and when in use, can be fixed using fixed link between two neighboring telescopic rod, to increase The stability of A-frame.
Above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although with reference to preferred embodiment pair The utility model is described in detail, it will be understood by those of ordinary skill in the art that, it can be to the technology of the utility model Scheme is modified or replaced equivalently, and without departing from the objective and range of technical solutions of the utility model, should all be covered In the right of the utility model.Technology that the utility model is not described in detail, shape, construction part are known Technology.

Claims (6)

1. forestry compass, including A-frame, horizontal mechanism, compass and telescope, the A-frame pass through horizontal mechanism It is connect with compass, the telescope is mounted on the top of compass, it is characterised in that:The horizontal mechanism includes pedestal, and described three Angle support is hinged on pedestal, and side of the pedestal far from A-frame is provided with hemispheric first groove, the pedestal Bottom offer through-hole, the first groove internal clearance is combined with ball, the centre of sphere across ball is offered in the ball Stepped hole, the stepped hole internal clearance is combined with the sliding block for stretching out stepped hole, and the lower end of the sliding block is fixedly connected with drawstring, The drawstring is connected with clump weight across stepped hole, and support base is connected on the compass, be provided on the support base with Second groove of ball clearance fit, second groove is interior to be equipped with the blind hole coordinated with sliding block.
2. forestry compass according to claim 1, it is characterised in that:Elastic string is connected on the support base, it is described The one end of elastic string far from support base is connected with the first hook, and the first hanging ring is connected on the A-frame.
3. forestry compass according to claim 2, it is characterised in that:The clump weight is the messenger wire of triangular pyramidal shape Hammer.
4. forestry compass according to claim 3, it is characterised in that:The one end of the drawstring far from sliding block is connected with Two hooks, the ceiling hammer end face center are fixedly connected with the second hanging ring.
5. forestry compass according to claim 4, it is characterised in that:The bottom end of the A-frame is hinged with bottom plate.
6. according to the forestry compass described in claim 1 to 5 any claim, it is characterised in that:It is set on the support base It is equipped with the fastening bolt of locking support seat and sliding block.
CN201820285768.1U 2017-11-13 2018-03-01 Forestry compass Active CN207832196U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721529575 2017-11-13
CN2017215295758 2017-11-13

Publications (1)

Publication Number Publication Date
CN207832196U true CN207832196U (en) 2018-09-07

Family

ID=63398381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820285768.1U Active CN207832196U (en) 2017-11-13 2018-03-01 Forestry compass

Country Status (1)

Country Link
CN (1) CN207832196U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322956A (en) * 2020-04-08 2020-06-23 哈尔滨科友半导体产业装备与技术研究院有限公司 Device capable of automatically measuring height of crystal growing powder in dry pot
CN111609843A (en) * 2020-06-08 2020-09-01 邓昌杰 Geomantic omen compass extension frame

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322956A (en) * 2020-04-08 2020-06-23 哈尔滨科友半导体产业装备与技术研究院有限公司 Device capable of automatically measuring height of crystal growing powder in dry pot
CN111322956B (en) * 2020-04-08 2022-01-28 哈尔滨科友半导体产业装备与技术研究院有限公司 Device capable of automatically measuring height of crystal growing powder in crucible
CN111609843A (en) * 2020-06-08 2020-09-01 邓昌杰 Geomantic omen compass extension frame

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