Portable road surveying and mapping instrument for road construction

Abstract

The utility model relates to the related technical field of road construction instruments, in particular to a portable road surveying instrument for road construction, which comprises a total station and a support frame for mounting the total station, the support frame comprises a base and at least three groups of support arms arranged along the circumference of the base, and the support arms are rotatably connected with the base; the supporting arms comprise a first supporting rod and a second supporting rod, one end of the second supporting rod is connected with the first supporting rod in a sliding mode, and the supporting device further comprises a thread adjusting piece which is arranged at the bottom of the base and connected with the supporting arms. The supporting length of the supporting arm is changed while the supporting arm is driven to deflect relative to the base without mutual influence, so that the height of the base is adjusted, the supporting stability of the whole supporting frame is ensured, the supporting arm can be closed, the supporting length is reduced, the occupied space is small, and the supporting frame is convenient to store and carry under the condition that the supporting frame is not used.

Description

TECHNICAL FIELD

[0001] The utility model relates to road construction instrument related technical field, concretely is a portable highway surveying instrument for road construction. BACKGROUND

[0002] In the modernization process of our country, measurement has a crucial role, and total station instrument trigonometric leveling is a typical representative. It is widely used in road construction in our country with comprehensive functionality, intuitive operability and high efficiency. Its use involves many aspects of highway construction: from surveying to construction process to completion acceptance, which greatly promotes the road construction industry in our country.

[0003] The triangular support is crucial in the use of the total station instrument. It can provide better support and balance to prevent the measuring instrument from being disturbed and shaken during the measurement process, thereby improving the stability and accuracy of the measurement. The existing triangular support is generally expanded by manual control of the three legs during use. Manual adjustment cannot guarantee the consistent expansion angle of the three legs, resulting in the need for multiple adjustments when balancing the triangular support, which causes the overall stability of the triangular support to be not high. SUMMARY

[0004] The utility model aims at providing a portable highway surveying instrument for road construction to solve the problems in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A portable highway surveying instrument for road construction, comprising a total station instrument and a support frame for mounting the total station instrument, the support frame comprising a base and at least three groups of support arms arranged along the circumference of the base, the support arms being rotationally connected to the base;

[0007] The support arm comprises a first support rod and a second support rod, and one end of the second support rod is slidably connected to the first support rod

[0008] It also comprises a threaded adjusting member arranged at the bottom of the base and connected to the support arms respectively. When the threaded adjusting member adjusts the support angle of the support arm, the second support rod is controlled to slide relative to the first support rod through the transmission assembly.

[0009] The portable highway surveying instrument for road construction as described above: the first support rod has an embedded groove formed at one end away from the base, at least one limiting sliding groove is formed in the embedded groove, and a limiting sliding block is arranged on the second support rod and slidably matched with the limiting sliding groove.

[0010] The portable road surveying instrument for road construction has the advantages that the threaded adjusting member comprises a first screw rod rotatably arranged at the bottom of the base, a threaded sleeve is threadedly connected to the first screw rod, at least three groups of connecting rods are hingedly connected to the threaded sleeve, the ends of the connecting rods away from the threaded sleeve are hingedly connected to the first supporting rod, and the first screw rod is connected to the transmission assembly through a first bevel gear.

[0011] The portable road surveying instrument for road construction has the advantages that the transmission assembly is arranged along the circumference of the first screw rod and is connected to the pushing structure arranged on the first supporting rod.

[0012] The portable road surveying instrument for road construction has the advantages that the transmission assembly comprises a transmission shaft rotatably arranged at the bottom of the base, second and third bevel gears are formed at the two ends of the transmission shaft, the second bevel gear is engaged with the first bevel gear.

[0013] The portable road surveying instrument for road construction has the advantages that a rotating shaft is rotatably arranged at the bottom of the base, and a fourth bevel gear engaged with the third bevel gear is arranged on the rotating shaft.

[0014] The portable road surveying instrument for road construction has the advantages that the pushing structure comprises a second screw rod rotatably arranged on the first supporting rod, a fifth bevel gear engaged with the fourth bevel gear is formed on the second screw rod, and the second screw rod is threadedly connected to the second supporting rod and extends into the embedded groove.

[0015] The portable road surveying instrument for road construction has the advantages that at least three groups of connecting tubes are rotatably arranged at the bottom of the base, the connecting tubes are fixed to the ends of the first supporting rods away from the second supporting rod, and the connecting tubes are coaxially arranged with the rotating shaft.

[0016] Compared with the prior art, the portable road surveying instrument for road construction has the advantages that

[0017] The threaded adjusting member is manually controlled to work, the multiple supporting arms are simultaneously extruded, the folding state of the supporting arms is released, the multiple supporting arms are synchronously deflected relative to the base, the deflection angle is kept consistent, and the second supporting rod is controlled to slide relative to the first supporting rod under the action of the transmission assembly in the deflection process, so that the supporting angle and the supporting length of the supporting arms are synchronously adjusted and do not affect each other, the height of the base is adjusted, and the supporting stability of the entire supporting frame is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the portable road surveying instrument for road construction.

[0019] Figure 2 It is the structure schematic view of the base and the supporting arm in the portable highway surveying instrument for road construction.

[0020] Figure 3 It is the structure schematic view of the first supporting rod, the second supporting rod and the pushing structure in the portable highway surveying instrument for road construction.

[0021] Figure 4 It is the structure schematic view of the threaded adjusting piece and the transmission assembly in the portable highway surveying instrument for road construction.

[0022] Figure 5 It is the structure schematic view of the transmission assembly and the first supporting rod in the portable highway surveying instrument for road construction.

[0023] Figure 6 It is the structure schematic view of the rotating shaft and the connecting cylinder in the portable highway surveying instrument for road construction.

[0024] In the figure: 1, base; 2, first supporting rod; 201, limiting sliding groove; 3, second supporting rod; 301, limiting sliding block; 4, first screw rod; 5, threaded sleeve; 6, connecting rod; 7, first bevel gear; 8, transmission shaft; 9, second bevel gear; 10, third bevel gear; 11, rotating shaft; 12, connecting cylinder; 13, fourth bevel gear; 14, second screw rod; 15, fifth bevel gear. DETAILED DESCRIPTION

[0025] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent the same elements or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0026] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0027] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, methods, means, elements well known to those skilled in the art are not described in detail, in order to highlight the main idea of the present application.

[0028] Please refer to Figures 1-6 In the embodiment of the present application, a portable highway surveying instrument for road construction comprises a surveying instrument, a base 1, a first supporting rod 2, a second supporting rod 3, a threaded adjusting piece and a transmission assembly.

[0029] Specifically, please refer toFigure 1 、 Figure 2 and Figure 5 , including;

[0030] Total station and support frame for installing the total station, the support frame comprises a base 1 and at least three groups of support arms arranged along the circumference of the base 1, the support arms are rotationally connected with the base 1;

[0031] The support arm comprises a first support rod 2 and a second support rod 3, and one end of the second support rod 3 is slidingly connected with the first support rod 2

[0032] Further comprising a threaded adjusting piece arranged at the bottom of the base 1 and connected with the support arms respectively, when the threaded adjusting piece adjusts the support angle of the support arm, the second support rod 3 is controlled to slide relative to the first support rod 2 through a transmission assembly.

[0033] In detail, when the road construction needs to take instruments to survey, the stable installation of the support frame can ensure the normal measurement work of the total station, the threaded adjusting piece is manually controlled to work, the multiple support arms are simultaneously extruded, the folding state of the support arm is released, the multiple support arms are synchronously deflected relative to the base 1, and in the process of deflection, the second support rod 3 is controlled to slide relative to the first support rod 2 under the action of the transmission assembly, the support angle and the support length of the support arm are synchronously adjusted and do not affect each other, so as to realize the adjustment of the height of the base 1 and ensure the support stability of the entire support frame, the support arm can be closed and the support length is reduced in the non-use state, the occupied space is smaller, and the support arm is convenient to store and carry.

[0034] Preferably, an embedded groove is formed at the end of the first support rod 2 away from the base 1, at least one set of limiting sliding grooves 201 is formed in the embedded groove, and a limiting sliding block 301 slidingly matched with the limiting sliding grooves 201 is arranged on the second support rod 3.

[0035] It should be noted that when the second support rod 3 moves, the limiting sliding block 301 moves synchronously, and under the action of the limiting sliding grooves 201, the limiting sliding block 301 always slides in the limiting sliding grooves 201, so as to realize the sliding connection of the second support rod 3 and the first support rod 2 and play a guiding role in the movement of the second support rod 3.

[0036] As a further scheme of the utility model, referring to Figure 4 The threaded adjusting piece comprises a first screw rod 4 rotationally arranged at the bottom of the base 1, a threaded sleeve 5 is threadedly connected on the first screw rod 4, at least three groups of connecting rods 6 are hinged on the threaded sleeve 5, one end of the connecting rod 6 away from the threaded sleeve 5 is hinged with the first support rod 2, and the first screw rod 4 is connected with the transmission assembly through a first bevel gear 7.

[0037] In detail, the first screw rod 4 is manually controlled to rotate, and the first screw rod 4 drives the threaded sleeve 5 to move linearly along the axial direction of the first screw rod 4 when the first screw rod 4 rotates, wherein when the support arm is unfolded, the threaded sleeve 5 moves upward, and when the threaded sleeve 5 moves upward, the connecting rod 6 exerts a pressing force on the first support rod 2, so that the support arm rotates relative to the base 1, so as to unfold the support arm while ensuring that the support frame can always maintain stability.

[0038] As a further scheme of the utility model, referring to Figure 5 , the transmission assembly is provided with at least three groups along the circumference of the first screw rod 4, and is connected with the pushing structure arranged on the first support rod 2.

[0039] The transmission assembly comprises a transmission shaft 8 rotatably arranged at the bottom of the base 1, two ends of the transmission shaft 8 are formed with a second bevel gear 9 and a third bevel gear 10, respectively, and the second bevel gear 9 is engaged with the first bevel gear 7.

[0040] Further comprising a rotating shaft 11 rotatably arranged at the bottom of the base 1, and the rotating shaft 11 is provided with a fourth bevel gear 13 engaged with the third bevel gear 10.

[0041] When the first screw rod 4 rotates, the rotation of the transmission shaft 8 is realized through the transmission of the first bevel gear 7 and the second bevel gear 9, and when the transmission shaft 8 rotates, the rotating shaft 11 is driven to rotate under the transmission action of the third bevel gear 10 and the fourth bevel gear 13, and the rotating shaft 11 does not affect the deflection angle of the support arm when it rotates, and only acts on the pushing structure, so that the second support rod 3 moves relative to the first support rod 2, realizing the synchronous deflection of the second support rod 3 and the first support rod 2, and the second support rod 3 moves relative to the first support rod 2, the support length changes, so as to achieve the purpose of adjusting the height of the base 1.

[0042] As a further scheme of the utility model, referring to Figure 3 , the pushing structure comprises a second screw rod 14 rotatably arranged on the first support rod 2, the second screw rod 14 is formed with a fifth bevel gear 15 engaged with the fourth bevel gear 13, and the second screw rod 14 extends into the embedded groove and is threadedly connected with the second support rod 3.

[0043] The bottom of the base 1 is rotatably provided with at least three groups of connecting barrels 12, the connecting barrels 12 are fixed to one end of the first support rod 2 away from the second support rod 3, and the connecting barrels 12 are coaxially arranged with the rotating shaft 11.

[0044] Specifically, when the rotating shaft 11 rotates, the second screw rod 14 rotates under the action of the fourth bevel gear 13 and the fifth bevel gear 15, and the second supporting rod 3 moves linearly along the axial direction of the second screw rod 14 under the action of the limiting sliding groove 201 and the limiting sliding block 301, so as to realize the requirement that the second supporting rod 3 moves relative to the first supporting rod 2.

[0045] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that, although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A portable highway surveying instrument for road construction, comprising a total station and a support frame for mounting the total station, wherein the support frame comprises a base (1) and at least three groups of support arms arranged along the circumference of the base (1), wherein the support arms are rotatably connected to the base (1), and is characterized in that ； The support arm comprises a first support rod (2) and a second support rod (3), and one end of the second support rod (3) is slidably connected to the first support rod (2). It also includes a threaded adjustment member, which is arranged at the bottom of the base (1) and is respectively connected to the support arms. When the threaded adjustment member adjusts the support angle of the support arm, the transmission assembly controls the second support rod (3) to slide relative to the first support rod (2).

2. A portable highway surveying instrument for road construction according to claim 1, characterized in that: An embedded groove is formed at one end of the first support rod (2) away from the base (1), and at least one set of limiting sliding grooves (201) is formed in the embedded groove. A limiting sliding block that slides in cooperation with the limiting sliding grooves (201) is provided on the second support rod (3).

3. A portable highway surveying instrument for road construction according to claim 2, characterized in that: The threaded adjustment member comprises a first screw (4) rotatably arranged at the bottom of the base (1); a threaded sleeve (5) is threadedly connected to the first screw (4); at least three groups of connecting rods (6) are hinged to the threaded sleeve (5); one end of the connecting rod (6) away from the threaded sleeve (5) is hinged to the first support rod (2); and the first screw (4) is connected to the transmission assembly via a first bevel gear (7).

4. A portable highway surveying instrument for road construction according to claim 3, characterized in that: At least three groups of transmission components are arranged along the circumference of the first screw rod (4), and are respectively connected to the pushing structures arranged on the first support rod (2).

5. A portable highway surveying instrument for road construction according to claim 4, characterized in that: The transmission assembly comprises a transmission shaft (8) rotatably mounted on the bottom of the base (1), with a second bevel gear (9) and a third bevel gear (10) formed at both ends of the transmission shaft (8), and the second bevel gear (9) meshing with the first bevel gear (7); It also includes a rotating shaft (11), which is rotatably arranged at the bottom of the base (1), and a fourth bevel gear (13) meshing with the third bevel gear (10) is arranged on the rotating shaft (11).

6. A portable highway surveying instrument for road construction according to claim 5, characterized in that: The pushing structure comprises a second screw rod (14) rotatably arranged on the first support rod (2), a fifth bevel gear (15) meshing with the fourth bevel gear (13) being formed on the second screw rod (14), and the second screw rod (14) extends into the embedded groove and is threadedly connected to the second support rod (3).

7. The portable highway surveying instrument for road construction according to claim 5, characterized in that: At least three groups of connecting tubes (12) are rotatably provided at the bottom of the base (1); the connecting tubes (12) are fixed to one end of the first support rod (2) away from the second support rod (3), and the connecting tubes (12) are coaxially arranged with the rotating shaft (11).

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