CN111637339B

CN111637339B - Multifunctional construction engineering budget rehearsal equipment

Info

Publication number: CN111637339B
Application number: CN202010418132.1A
Authority: CN
Inventors: 吴玉麟
Original assignee: Sichuan Kexing Construction Engineering Cost Consulting Co ltd
Current assignee: Sichuan Kexing Construction Engineering Cost Consulting Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-08-10
Anticipated expiration: 2040-05-18
Also published as: CN111637339A

Abstract

The invention relates to multifunctional construction engineering budget drilling equipment which comprises an equilateral triangle mounting plate, three folding rods vertically arranged at the edges of three sides of the mounting plate and folded into a plate shape, a cover plate for opening and closing the edges of the three folding rods far away from the mounting plate to form an opening, and an instrument body arranged on the mounting plate and close to the surface of the cover plate, wherein each folding rod comprises a first rod, a third rod and a plurality of second rods, the first rods, the second rods and the third rods are sequentially hinged in a tail-closing manner, and a handle is arranged on the cover plate. By combining the support and the storage box, an operator can directly fold the folding rod into the box for storing the instrument body after the measurement is finished, so that the instrument body is positioned in the box and lifted away.

Description

Multifunctional construction engineering budget rehearsal equipment

Technical Field

The invention relates to the technical field of engineering cost, in particular to multifunctional construction engineering budget practicing equipment.

Background

At present, engineering budget drilling equipment is mainly a surveying instrument, building conditions such as the area of a building are determined simply through surveying and mapping, the overall budget of the engineering is obtained based on the building conditions, one field surveying and mapping device is a theodolite, and the theodolite is an instrument for measuring a horizontal angle and a vertical angle.

The patent with the publication number of CN210135403U discloses a leveling instrument support for railway engineering measurement, which comprises a tripod, a sliding seat and a mounting plate for placing a leveling instrument, wherein the tripod comprises a chassis and three support legs hinged on the chassis, four first sliding grooves staggered in a shape like a Chinese character 'jing' are arranged on the chassis, four ends of the bottom of the sliding seat are respectively provided with a support rod embedded in the first sliding grooves, and the sliding seat can be horizontally moved on the chassis in a front-back and left-right manner through the clamping and embedding action of the support rods and the first sliding grooves; the mounting disc is installed on the seat that slides, and is equipped with the centre gripping subassembly that is used for the centre gripping spirit level on the mounting disc.

The above prior art solutions have the following drawbacks: most levelness measuring apparatu of current all separately sets up instrument and A-frame to reach and conveniently carry the effect, because the instrument is comparatively accurate, when putting up the whole instrument, can put into the case with the instrument and deposit usually, keep the instrument clean and complete, nevertheless carry the instrument in operating personnel, need separately carry the A-frame with the case that has deposited the instrument, and the A-frame is longer, causes and carries inconvenient circumstances, exists and improves the necessity.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the multifunctional construction engineering budget practicing equipment which has the effect of convenient carrying.

The above object of the present invention is achieved by the following technical solutions:

a multifunctional construction engineering budget drilling device comprises an equilateral triangle mounting plate, three folded plate-shaped folding rods vertically arranged at the edges of three sides of the mounting plate, a cover plate for opening and closing the edges of the three folded folding rods far away from the mounting plate and enclosing an opening, and an instrument body arranged on the mounting plate and close to the surface of the cover plate, wherein each folding rod comprises a first rod, a third rod and a plurality of second rods, the first rod, the second rod and the third rod are sequentially hinged in a tail-closing manner, one end of the first rod, far away from the hinged point of the first rod and the second rod, is hinged at one corner of the mounting plate, the axis of the hinged shaft of the first rod on the mounting plate is parallel to the upper edge and the lower edge of a plane opposite to the corner of the first rod on the mounting plate, a first limiting component for limiting the rotation of the first rod is arranged on the mounting plate, and second limiting components for limiting the rotation of two adjacent rods to form a straight line are arranged at the hinged positions among the first rod, the third rod and the plurality of the second rods, be provided with on the mounting panel and be used for restricting three folding rod and fold into platelike spacing subassembly of third, be provided with on the apron and be used for folding into platelike coupling assembling of folding rod connection with three, be provided with the handle on the apron.

By adopting the technical scheme, an operator folds the first rod, the second rod and the third rod in sequence to finally fold the first rod, the second rod and the third rod into a plate shape, the first rod, the second rod and the third rod are rotatably attached to the edge of the mounting plate, the folded whole folding rods are fixedly connected with the mounting plate through the third limiting part on the mounting plate, and finally the cover plate is connected with the folding rods through the connecting assembly, so that the whole equipment which forms the box body and wraps the instrument main body can be quickly lifted away; when measuring the use, untie coupling assembling, take off the apron, untie the third locating part again to each pole rotates to being a straight line on with the folding rod, and the spacing subassembly of reuse second is connected fixedly between with each pole, rotates three folding rods to mounting panel below suitable position again, uses first spacing subassembly to carry out spacing fixed to the rotation of folding rod, thereby makes three folding rods support mounting panel and instrument body above, the staff's operation of being convenient for. Through combining support and case, make operating personnel after the measurement, directly fold the folding rod for the box of depositing the instrument body to carry away it, convenient to carry.

The present invention in a preferred example may be further configured to: first spacing subassembly includes clamp bolt and nut, the installation ear has set firmly on the lateral wall of mounting panel, the one end that self and second pole pin joint were kept away from to first pole has set firmly the engaging lug, installation ear and engaging lug sliding contact, it wears to be provided with the perforation to align to open on installation ear and the engaging lug, clamp bolt wears to establish in the perforation, nut threaded connection wears out fenestrate one end at clamp bolt.

Through adopting above-mentioned technical scheme, it is vertical to change the folding rod at operating personnel to with folding rod rotation under the vertical state to suitable angle after, through screwing up housing bolt and nut, make engaging lug on the first pole and the installation ear frictional contact on the mounting panel, through the frictional force between each contact surface, make the folding rod stall, can the stable stay subaerial, stability is better.

The present invention in a preferred example may be further configured to: the second limiting component comprises a sliding block and a first mounting hook, the first rod is far away from the side wall of the hinge point of the first rod and the second rod, and the side wall of the second rod far away from the hinge point of the second rod and the next rod is provided with a sliding chute along the length direction of the second rod, the sliding block is arranged in the sliding groove in a sliding manner, a tension spring for driving the sliding block to be close to a hinge joint of the rod where the sliding block is arranged and the previous rod is arranged in the sliding groove, one end of the tension spring is fixedly connected with the sliding block, the other end of the tension spring is fixedly connected with the rod where the sliding block is positioned, the first mounting hook is hinged on the sliding block, the second rod is far away from the side wall of the hinged point of the second rod and the upper rod, and the third pole is kept away from on the lateral wall of self and second pole pin joint, all sets up the first mounting groove with first installation hook looks adaptation, first installation hook can the joint in the first mounting groove on the next pole of self place pole.

Through adopting above-mentioned technical scheme, at operating personnel with first pole, arbitrary two rotate to being a straight line back in second pole and the third pole, through rotating the first installation hook in the last pole department spout, then, the sliding block slides, the extension spring lengthens, make the sliding block be close to next pole, and articulate first installation hook in the first mounting groove on next pole, loosen first installation hook, the sliding block moves the sliding block under the extension spring effort and keeps away from next pole, and make first installation hook can stabilize joint and first mounting groove in, high durability and convenient use, the operating personnel of being convenient for expandes the folding rod fast.

The present invention in a preferred example may be further configured to: be provided with the torsional spring that the slip end that is used for ordering about first installation hook rotated to the spout diapire and is close to on the sliding block, the one end and the sliding block fixed connection of torsional spring, the first installation hook fixed connection of the other end.

Through adopting above-mentioned technical scheme, when operating personnel folded folding rod, take off first installation hook from first mounting groove, first installation hook is under the torsional spring effort, by the drive rotatory to the spout in, make each pole of folding rod keep neat, make things convenient for operating personnel to fold folding rod.

The present invention in a preferred example may be further configured to: the spacing subassembly of third includes bottom plate and second installation hook, the bottom plate slides along vertical direction and sets up under the mounting panel, the second installation hook articulates in the lateral wall of bottom plate the second installation hook is provided with three along the even interval of bottom plate circumference, on the outer wall after first pole, third pole and a plurality of second pole fold into the platelike, run through the second mounting groove of seting up with second installation hook looks adaptation along the horizontal direction, second installation hook can with second mounting groove joint, be provided with the driving piece that is used for ordering about the bottom plate unit from the mounting panel on the mounting panel.

Through adopting above-mentioned technical scheme, fold into platelike with the folding rod at operating personnel, and will receive and fold the back folding rod and rotate to the edge laminating back with the mounting panel, operating personnel upwards overturns with the second installation hook on the bottom plate, make the second installation hook insert in the second mounting groove on the folding rod, and make the second installation hook all have the contact with the partial second mounting groove on each pole on the folding rod, after three second installation hooks all cooperate the installation on the bottom plate, through the driving piece, order about second installation hook downstream, because the articulated shaft of the folding rod whole on the mounting panel is crisscross with the articulated shaft of second installation hook, consequently the second installation hook can be fixed the folding rod, effectively avoid the folding rod to expand, and convenient for operation, good stability.

The present invention in a preferred example may be further configured to: the driving piece is a spring, one end of the spring is fixedly connected with the mounting plate, and the other end of the spring is fixedly connected with the bottom plate.

Through adopting above-mentioned technical scheme, behind three second installation hooks on the operating personnel with three second mounting groove butt that correspond on the bottom plate, loosen the bottom plate, the spring orders about the bottom plate under the spring action and keeps away from the mounting panel, can make the stable card of second installation hook insert in the second mounting groove, convenient to use.

The present invention in a preferred example may be further configured to: coupling assembling includes roof and third installation hook, the roof slides along vertical direction and sets up directly over the apron, the third installation hook articulates on the lateral wall of roof, the third installation hook is provided with threely along the even interval of roof circumference, on the outer wall after first pole, third pole and a plurality of second pole fold into platelike, run through the third mounting groove of seting up with third installation hook looks adaptation along the horizontal direction, third installation hook can with third mounting groove joint, the articulated setting of handle is on the roof of roof.

Through adopting above-mentioned technical scheme, when operating personnel installs the apron, align earlier the apron and place the top at the folding rod, then, rotate the third installation hook on the roof, make it rotate in the third mounting groove of joint income folding rod, can mention the handle, mention the handle in-process, drive the roof and rise, make the stable card of third installation hook insert the third mounting groove simultaneously, mention equipment whole, convenient to use.

The present invention in a preferred example may be further configured to: rotate on the roof and be provided with the turning block, the handle is articulated to be set up on the roof of turning block, the diapire of roof is worn out to the bottom of turning block, the lug has set firmly on the lateral wall of turning block, the lug is located the below of roof, set up the jack with turning block and lug looks adaptation on the apron, when third installation hook and third mounting groove joint, the diapire of lug flushes with the roof of apron.

Through adopting above-mentioned technical scheme, after operating personnel inserts the third mounting groove that corresponds with third installation hook, the handle is mentioned the roof to the handle, makes rotor and the lug of handle below deviate from the jack on the apron, then, rotates the handle, and it is rotatory to drive the rotor, makes lug and apron upper jack dislocation to make third installation hook can stably keep with third mounting groove chucking state, improve the equipment box body stability of accepting the state.

The present invention in a preferred example may be further configured to: one end of the third rod, far away from the hinge point of the third rod and the second rod, is detachably provided with a needle point.

By adopting the technical scheme, the needle point is erected on the third rod, the folding rod is unfolded, the needle point can be inserted into the ground, and the stability of the equipment erected on the ground is improved.

The present invention in a preferred example may be further configured to: the number of the second rods is even.

Through adopting above-mentioned technical scheme, when second pole quantity is the even number, receive folding rod and fold for the platelike to rotate to vertical laminating mounting panel state after, the needle point on the third pole is down, when making the equipment of accomodating the state place subaerial, the needle point also can insert subaerial, can stably place on various topography, improves stability.

In summary, the invention includes at least one of the following beneficial technical effects:

1. by combining the support and the storage box, an operator can directly fold the folding rod into the box for storing the instrument body after the measurement is finished, so that the instrument body is positioned in the box and lifted away, and the instrument is convenient to carry;

2. after an operator rotates the plate-shaped folding rod to be attached to the edge of the mounting plate, the operator turns the second mounting hook on the bottom plate upwards and is connected into the second mounting groove on the folding rod, and the second mounting hook is driven to move downwards, so that the second mounting hook is stably connected with the second mounting groove in a clamping mode, the folding rod is effectively prevented from unfolding, the operation is convenient, and the stability is good;

3. when operating personnel installs the apron, align earlier the apron and place the top at the folding rod, then, rotate the third installation hook on the roof, make it rotate in the third mounting groove of joint income folding rod, can mention the handle, mention the handle in-process, drive the roof and rise, make the stable card of third installation hook insert the third mounting groove simultaneously, mention convenient to use with equipment is whole.

Drawings

FIG. 1 is a schematic view of the overall structure of the instrument body of the present invention in a state of being accommodated therein.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partial sectional structural view of the first and second bars in the working state of the folding bar support of the present invention.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 3.

Fig. 5 is a partially enlarged schematic view of a portion C in fig. 3.

In the figure, 1, mounting plate; 11. an instrument body; 2. a folding bar; 21. a first lever; 22. a second lever; 23. a third lever; 3. a cover plate; 4. a first limit component; 41. a hold-down bolt; 42. a nut; 43. mounting lugs; 44. connecting lugs; 5. a second limiting component; 51. a slider; 52. a first mounting hook; 53. a chute; 54. a tension spring; 55. a first mounting groove; 56. a torsion spring; 6. a third limiting component; 61. a base plate; 62. a second mounting hook; 63. a second mounting groove; 64. a spring; 7. a connecting assembly; 71. a top plate; 72. a third mounting hook; 73. a third mounting groove; 74. rotating the block; 75. a bump; 76. a jack; 8. a handle; 9. a needle tip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 3, the multifunctional building engineering budget practicing device disclosed by the invention comprises a mounting plate 1, a folding rod 2, a cover plate 3 and an instrument main body. The mounting plate 1 is in an equilateral triangle shape and is horizontally placed. The instrument main body can be a surveying instrument commonly used in projects such as a horizontal surveying instrument, a total station warp and a weft instrument, and is fixedly installed on the top wall of the installation plate 1 through bolts. The folding rods 2 are hinged to three corners of the mounting plate 1 respectively, and the folding rods 2 can be folded into a plate shape and vertically attached to the upper side edge of the mounting plate 1 to surround the instrument main body.

Referring to fig. 1 and 3, the folding rod 2 is composed of a first rod 21, a third rod 23 and a plurality of second rods 22, the number of the second rods 22 is even, and in this embodiment, the number of the second rods 22 is four. The first rod 21 and the third rod 23 are positioned at two ends of the folding rod 2, the four second rods 22 are positioned between the first rod 21 and the third rod 23, and the first rod 21, the second rod 22 and the third rod 23 are sequentially hinged end to end. The third rod 23 is positioned at one end of the end part of the folding rod 2 and is provided with a needle point 9, and the needle point 9 and the third rod 23 can be connected in a threaded connection mode, a clamping connection mode and the like. After the folding rod 2 is folded into a plate shape and attached to the mounting plate 1, the needle point 9 faces downwards and can be supported on the ground.

Referring to fig. 3 and 4, the first rod 21 is vertically welded with a connecting lug 44 at one end of the folding rod 2, the mounting plate 1 is welded with mounting lugs 43 at each corner thereof, and the connecting lug 44 is attached to the mounting lugs 43 and is hinged with the mounting lugs. The mounting plate 1 is provided with a first limiting component 4 for limiting the rotation of the first rod 21, which comprises a compression bolt 41 and a nut 42. The connecting lug 44 and the mounting lug 43 are coaxially provided with through holes. The axis of the perforation is horizontal and parallel to the angularly opposite vertical side wall of the mounting plate 1 on which the mounting ears 43 are located, while the axis of the perforation is also perpendicular to the axis of the first rod 21. The pressing bolt 41 is inserted through the through hole, the head portion of the pressing bolt abuts against any one of the ear plates, and the nut 42 is screwed with the other end of the pressing bolt 41 inserted through the through hole. By tightening the nut 42, the nut 42 cooperates with the head of the pressing bolt 41 to press the mounting lug 43 and the engaging lug 44, and the first lever 21 is stopped by friction therebetween. Rubber friction plates can be added between the connecting lugs 44 and the mounting lugs 43, so that friction force is increased, and the fixing effect on the rotation of the first rod 21 is improved.

Referring to fig. 3 and 5, the hinge axes of the second rod 22 with respect to the front and rear rods are located on two parallel and diagonal edges of the second rod 22, respectively. Referring to fig. 1, the second limiting component 5 for limiting the rotation of two adjacent rods to be straight is arranged at the hinged position between the first rod 21, the third rod 23 and the plurality of second rods 22, and includes a sliding block 51 and a first mounting hook 52. First pole 21 is on a parallel with self length direction, and keeps away from on the lateral wall of self and second pole 22 pin joint, has seted up spout 53 along self length direction, and spout 53 is T type groove, and sliding block 51 slidable mounting matches with spout 53 in spout 53. The first mounting hook 52 is formed by two right-angle turns, the first mounting hook 52 is hinged on the sliding block 51, and the hook of the first mounting hook 52 faces the inner side of the groove. First slider and first installation hook 52 can be completely received and put into spout 53 in, cup jointed torsional spring 56 on the articulated shaft of first installation hook 52 for order to order about first installation hook 52 to the spout 53 internal rotation, torsional spring 56's one end and first installation hook 52 welding, the other end and sliding block 51 welding. Still install extension spring 54 in the spout 53, extension spring 54 is located the slider and keeps away from the one side of this pole and the pin joint of next pole, and extension spring 54's one end and slider welding, the other end and the inner wall welding of spout 53 for the pulling slider is kept away from this pole and the pin joint of next pole in spout 53. On the side wall of the next rod on the same side as the sliding groove 53 of the previous rod, a first mounting groove 55 is formed. The first mounting groove 55 is adapted to the first mounting hook 52, and an allowance for the vertical sliding of the first mounting hook 52 in the first mounting groove 55 is left. The first rod 21, the second rod 22 and the third rod 23 of the folding rod 2 are all equal in length and are greater than the linear distance from the top of the instrument body 11 to the top wall of the mounting plate 1.

Referring to fig. 1 and 3, the folding rods 2 are folded into a plate shape and then rotatably abutted against the edge of the side wall of the mounting plate 1, and the three folding rods 2 are sequentially folded and then respectively arranged around the three sides of the mounting plate 1 in a plate shape to enclose the instrument body 11. The mounting plate 1 is provided with a third limiting component 6 for limiting the three folding rods 2 to keep the plate shape, and the third limiting component comprises a bottom plate 61 and a second mounting hook 62. The guide rod is perpendicularly welded on the bottom wall of the mounting plate 1, the guide hole matched with the guide rod is formed in the bottom plate 61, the guide rod is matched with the guide hole to slide and penetrate, and the bottom wall slides along the vertical direction and is arranged under the mounting plate 1. The second mounting hooks 62 are three, corresponding to three sides of the mounting plate 1, and are evenly spaced around the bottom plate 61. The second mounting hook 62 is hinged to the mounting plate 1 and has two vertical bends, the hook portion of which faces the folding bar 2.

The folding rod 2 is folded to form a plate-shaped outer wall, and a second mounting groove 63 matched with the second mounting hook 62 is formed in the edge length direction of the mounting plate 1. The second mounting groove 63 penetrates through each rod on the folding rod 2, the hook of the second mounting hook 62 is equal in length to the second mounting groove 63, and when the second mounting hook 62 is clamped with the second mounting groove 63, the second mounting hook 62 is clamped with the second mounting groove 63 on the upper portion of each rod on the corresponding folding rod 2. In order to fasten the second mounting hook 62 to the second mounting groove 63, a driving member, in this embodiment, a spring 64, is disposed on the mounting plate 1 for driving the bottom plate 61 away from the mounting plate 1. One end of the spring 64 is fixedly connected with the mounting plate 1, and the other end is fixedly connected with the bottom plate 61.

In other embodiments, the driver may be an abutment bolt. The abutting bolt is connected with the bottom plate 61 through a bolt, the head of the abutting bolt is positioned below the bottom plate 61, and the other end of the abutting bolt abuts against the bottom wall of the mounting plate 1.

Referring to fig. 1 and 2, the size of the cover plate 3 is slightly larger than the size of the opening at the top of the box body enclosed by the three folding rods 2 in the folded state, and the cover plate 3 can be covered on the top of the folding rods 2 and close the upper opening. The cover plate 3 is provided with a connecting assembly 7 for connecting with the three folding rods 2, and the connecting assembly comprises a top plate 71 and a third mounting hook 72. The top wall of the cover plate 3 is vertically welded with a guide rod, and the top plate 71 is vertically sleeved on the guide rod in a sliding manner. The three third mounting hooks 72 are provided around the top plate 71 at intervals corresponding to the three folding bars 2. A third mounting hook 72 is hinged to the top plate 71, the third mounting hook 72 having two vertical bends, the hooks of which are directed downwards towards the folding bar 2. The outer wall of the folding plate is provided with a third mounting groove 73 parallel to the second mounting groove 63, in the embodiment, the upper edge of the second mounting groove 63 is bordered by the lower edge of the third mounting groove 73, so that the two mounting grooves are combined into a groove, and the cross section of the groove is T-shaped. The third mounting hooks 72 are equal in length to the third mounting grooves 73 and can abut against the respective rods of the folding rod 2. To drive the top plate 71 up, the third mounting hook 72 is snapped into the third mounting slot 73 and the entire instrument is lifted. The top wall of the top plate 71 is provided with the rotating block 74, the top wall of the rotating block 74 is provided with the handle 8, the handle 8 is hinged with the rotating block 74, and when the handle 8 is rotated to be flatly attached to the rotating block 74, the whole occupied space of the cover plate 3 can be reduced.

In order to keep the third mounting hook 72 in a state of being fastened to the third mounting groove 73, the rotating block 74 is rotatably coupled to the top plate 71, a bottom portion of the rotating block 74 extends from a bottom wall of the top plate 71, and a projection 75 is integrally welded to an outer wall of the rotating block 74. The top wall of the cover plate 3 is provided with an insertion hole 76 matched with the bottom of the rotating block 74 and the projection 75, and the insertion hole 76 is provided with a first through hole for the rotating block 74 to pass through and a second through hole for the projection 75 to pass through in a unique state. When the top plate 71 is lifted and the third mounting hook 72 is tightly clamped with the third mounting groove 73, the bottom wall of the projection 75 is flush with the top wall of the cover plate 3, and at this time, the handle 8 is rotated to make the projection 75 and the second through hole on the insertion hole 76 dislocate, so that the third mounting hook 72 and the third mounting groove 73 are limited in a tight state.

The implementation principle of the embodiment is as follows: the operator folds the first bar 21, the second bar 22 and the third bar 23 in sequence, finally folds them into a plate shape, and then rotates them to fit the edges of the mounting plate 1. And then the second mounting hook 62 on the bottom plate 61 is turned upwards, so that the second mounting hook 62 is hooked into the second mounting groove 63 on the folding rod 2, and the second mounting hook is in contact with part of the second mounting grooves 63 on the folding rods 2. After the three second mounting hooks 62 are mounted on the bottom plate 61 in a matching manner, the spring 64 drives the bottom plate 61 and the second mounting hooks 62 on the bottom plate 61 to move downwards, so that the second mounting hooks 62 are clamped with the second mounting grooves 63. Finally, by placing the cover plate 3 over the folding bar 2 in alignment, the third mounting hook 72 on the top plate 71 is then rotated to snap into the third mounting groove 73 on the folding bar 2. Can mention handle 8, mention handle 8 in-process, drive roof 71 and rise, make third installation hook 72 stabilize the joint and insert third mounting groove 73 simultaneously, mention, take away equipment is whole.

When the measuring use is carried out, the cover plate 3 is taken off and the limitation of the folding rod 2 by the second mounting hook 62 is released. The folding rods 2 are rotated to be in a straight line, then the first mounting hook 52 in the upstream rod in the folding rods 2 is rotated to form a sliding groove 53, then the sliding block 51 is slid, the tension spring 54 is extended, the sliding block 51 is made to be close to the downstream rod, the first mounting hook 52 is hooked in the first mounting groove 55 in the downstream rod, the first mounting hook 52 is loosened, the sliding block 51 is pulled to be far away from the downstream rod under the action force of the tension spring 54, and the front and rear rods can be kept in a straight line state. Then, the three folding rods 2 are rotated to a proper position below the mounting plate 1, the nuts 42 and the hold-down bolts 41 are tightened, and the rotation of the folding rods 2 is limited and fixed, so that the mounting plate 1 and the instrument body 11 are supported above by the three folding rods 2, and the operation of a worker is facilitated.

Through combining support and case, make operating personnel after the measurement, directly fold folding rod 2 for the box of depositing instrument body 11 to lift away it together, convenient to carry.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a multi-functional building engineering budget rehearsal equipment which characterized in that: the foldable instrument comprises an installation plate (1) which is congruent triangle, three foldable platy folding rods (2) vertically arranged at the edges of three sides of the installation plate (1), a cover plate (3) which is used for opening and closing an opening formed by the three folding rods (2) after being folded and is enclosed along the edge of the installation plate (1), and an instrument body (11) which is arranged on the installation plate (1) and is close to the surface of the cover plate (3), wherein the folding rods (2) comprise a first rod (21), a third rod (23) and a plurality of second rods (22), the first rod (21), the second rod (22) and the third rod (23) are sequentially hinged end to end, one end of the first rod (21), which is far away from the hinged point of the first rod and the second rod (22), is hinged to one corner of the installation plate (1), and the axis of the hinged shaft of the first rod (21) on the installation plate (1) is parallel to the upper plane, right to the corner of the first rod on the installation plate (1), The lower limb, be provided with on mounting panel (1) and be used for restricting first pole (21) pivoted first spacing subassembly (4), articulated department between first pole (21), third and a plurality of second pole (22) all is provided with and is used for restricting adjacent two poles and rotates and be sharp second spacing subassembly (5), be provided with on mounting panel (1) and be used for restricting three folding rod (2) and keep into platelike third spacing subassembly (6), be provided with on apron (3) and be used for the coupling assembling (7) of being connected with three folding rod (2) that fold into platelike, coupling assembling (7) include roof (71) and third installation hook (72), roof (71) slide along vertical direction and set up directly over apron (3), third installation hook (72) articulate on the lateral wall of roof (71), third installation hook (72) are provided with threely along roof (71) even interval of circumference, first pole (21), third pole (23) and a plurality of second pole (22) fold into on the outer wall behind the platelike, run through along the horizontal direction and offer third mounting groove (73) with third installation hook (72) looks adaptation, third installation hook (72) can with third mounting groove (73) joint, it is provided with handle (8) to articulate on the roof of roof (71).

2. The multifunctional construction engineering budget exercise device according to claim 1, wherein: first spacing subassembly (4) include clamp bolt (41) and nut (42), installation ear (43) have set firmly on the lateral wall of mounting panel (1), the one end of self and second pole (22) pin joint is kept away from in first pole (21) has set firmly engaging lug (44), installation ear (43) and engaging lug (44) sliding contact, align to open on installation ear (43) and engaging lug (44) and wear to be provided with the perforation, clamp bolt (41) are worn to establish in the perforation, fenestrate one end is worn out at clamp bolt (41) to nut (42) threaded connection.

3. The multifunctional construction engineering budget exercise device according to claim 1, wherein: the second limiting component (5) comprises a sliding block (51) and a first mounting hook (52), the first rod (21) is far away from the side wall of the hinged point of the first rod and the second rod (22), the second rod (22) is far away from the side wall of the hinged point of the second rod and the next rod, sliding grooves (53) are formed in the length direction of the second rod, the sliding block (51) is arranged in the sliding grooves (53) in a sliding mode, a tension spring (54) used for driving the sliding block (51) to be close to the hinged point of the rod where the second rod is located and the previous rod is arranged in the sliding grooves (53), one end of the tension spring (54) is fixedly connected with the sliding block (51), the other end of the tension spring is fixedly connected with the rod where the sliding block (51) is located, the first mounting hook (52) is hinged to the sliding block (51), the second rod (22) is far away from the side wall of the hinged point of the first rod and the previous rod, and the third rod (23) is far away from the side wall of the hinged point of the second rod (22), all offer with first installation hook (52) looks adaptation first mounting groove (55), first installation hook (52) can joint in first mounting groove (55) on the next pole of self place pole.

4. The multifunctional construction engineering budget exercise device according to claim 3, wherein: the sliding block (51) is provided with a torsion spring (56) which is used for driving the sliding end of the first mounting hook (52) to rotate to be close to the bottom wall of the sliding groove (53), one end of the torsion spring (56) is fixedly connected with the sliding block (51), and the other end of the torsion spring is fixedly connected with the first mounting hook (52).

5. The multifunctional construction engineering budget exercise device according to claim 1, wherein: third spacing subassembly (6) include bottom plate (61) and second mounting hook (62), bottom plate (61) slide along vertical direction and set up under mounting panel (1), second mounting hook (62) articulate in the lateral wall of bottom plate (61), second mounting hook (62) are provided with three along bottom plate (61) circumference even interval, on the outer wall after first pole (21), third pole (23) and a plurality of second pole (22) fold into platelike, run through second mounting groove (63) of offering with second mounting hook (62) looks adaptation along the horizontal direction, second mounting hook (62) can with second mounting groove (63) joint, be provided with on mounting panel (1) and be used for ordering about bottom plate (61) yuan from the driving piece of mounting panel (1).

6. The multifunctional construction engineering budget exercise device according to claim 5, wherein: the driving piece is a spring (64), one end of the spring (64) is fixedly connected with the mounting plate (1), and the other end of the spring (64) is fixedly connected with the bottom plate (61).

7. The multifunctional construction engineering budget exercise device according to claim 1, wherein: rotate on roof (71) and be provided with turning block (74), the articulated roof that sets up on turning block (74) of handle (8), the diapire of roof (71) is worn out to the bottom of turning block (74), lug (75) have set firmly on the lateral wall of turning block (74), lug (75) are located the below of roof (71), offer jack (76) with turning block (74) and lug (75) looks adaptation on apron (3), when third installation hook (72) and third mounting groove (73) joint, the diapire of lug (75) flushes with the roof of apron (3).

8. The multifunctional construction engineering budget exercise device according to claim 1, wherein: one end of the third rod (23), which is far away from the hinge point of the third rod and the second rod (22), is detachably provided with a needle point (9).

9. The multifunctional construction engineering budget exercise device according to claim 8, wherein: the number of the second rods (22) is even.