A support structure for engineering measurement

Abstract

The present invention provides a support structure for engineering measurement, which relates to the field of engineering measurement technology, including: a measuring tool mounting platform; a retracting and extending driving member, which is arranged on the front end surface of the measuring tool mounting platform; a swinging driving screw, which is rotatably connected to the inner side of the bottom of the measuring tool mounting platform; a swinging transmission mechanism, which is arranged at the bottom of the measuring tool mounting platform; a telescopic transmission mechanism, which is arranged inside the measuring tool mounting platform and the first-level swinging leg; a third-level leg fixing member, which is rotatably connected to the outer side of the lower part of the second-level telescopic leg. The synchronous swinging and retracting of three groups of legs is realized, and the synchronous automatic retraction of the three groups of legs is realized while retracting and extending, which greatly reduces the operation, improves the convenience of operation, and improves the work efficiency. It solves the problem that the legs need to be pulled out one by one, and the extension length is adjusted section by section, and then the legs are swung and unfolded, which is cumbersome to use and affects the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of engineering measurement, and in particular to a support structure for engineering measurement. Background Art

[0002] In order to ensure the construction quality during the construction process, construction measurement needs to be carried out during the construction process. In order to ensure measurement accuracy and ease of operation, the engineering measurement is generally supported by a folding bracket structure. The existing brackets used for engineering measurement are generally tripod structures with retractable and foldable legs.

[0003] For example, the application number is: CN202010192285.9. The present invention discloses a bracket for civil engineering measuring instruments, which mainly relates to the field of civil engineering. It includes a support table, a spherical base of a detector is fixed on the support table, an upper bracket is provided on the peripheral annular array of the support table, a rotating arm is hinged on the upper bracket, a working plate is fixed on the outer end surface of the rotating arm, a spring data clip is provided on the working plate, a support rod is hinged on the outer end of the rotating arm, and the end of the support rod away from the rotating arm can be locked on the upper bracket with an adjustable height, a data box is detachably provided on the upper bracket, the data box is a flat box body, the top surface of the data box is a flat end surface and a box mouth is provided, the inner side surface of the data box is detachably fixed to the upper bracket, and the outer side surface of the data box is provided with a slot that is plugged and matched with the working plate. The beneficial effects of the present invention are: it has the advantages of stable support, convenient recording, and compact and portable when folded.

[0004] However, the existing engineering measurement bracket needs to be pulled out one by one during use, and the extension length needs to be adjusted section by section, and then the legs need to be swung and unfolded before use. The operation is cumbersome and affects work efficiency. Summary of the invention

[0005] In view of this, the present invention provides a support structure for engineering surveying, which realizes the synchronous swinging, retraction and extension of three sets of legs, and realizes the synchronous automatic extension and retraction of the three sets of legs while retracting and extending, which can greatly reduce operations, improve operational convenience and improve work efficiency.

[0006] The present invention provides a support structure for engineering measurement, which specifically comprises: a measuring tool mounting platform;

[0007] The first-level swing legs are provided with three pieces in total, and the three first-level swing legs are arranged in a circular array and hingedly connected to the outer side of the measuring tool mounting platform;

[0008] Secondary telescopic legs, there are three secondary telescopic legs in total, and the three secondary telescopic legs are slidably connected to the bottom inner sides of the three primary swing legs respectively;

[0009] Three-stage telescopic legs, the three-stage telescopic legs are provided with three pieces in total, and the three three-stage telescopic legs are respectively slidably connected to the inner sides of the bottoms of the three second-stage telescopic legs;

[0010] A retractable and extendable driving member, which is arranged on the front end surface of the measuring tool mounting platform;

[0011] A swing drive screw, the swing drive screw is rotatably connected to the inner side of the bottom of the measuring tool mounting table;

[0012] A swing transmission mechanism, which is arranged at the bottom of the measuring tool mounting platform;

[0013] The telescopic transmission mechanism is arranged inside the measuring tool mounting platform and the first-level swinging leg;

[0014] The third-level outrigger fixing piece is rotatably connected to the outer side of the lower part of the second-level telescopic outrigger.

[0015] Optionally, the rotation connection axis of the primary swing leg faces the central axis of the measuring tool mounting platform.

[0016] Optionally, the retraction and extension driving member includes:

[0017] A retractable active bevel gear, which is coaxially fixedly connected to the shaft end of the retractable driving member;

[0018] The swing drive screw includes:

[0019] The driven bevel gear is coaxially fixedly connected to the top of the swing driving screw, and the active bevel gear is meshed with the driven bevel gear to form a bevel gear transmission mechanism.

[0020] Optionally, the swing transmission mechanism includes:

[0021] The telescopic block is threadedly connected to the bottom of the swing driving lead screw, and the telescopic block and the swing driving lead screw together form a lead screw nut transmission mechanism.

[0022] Optionally, the swing transmission mechanism includes:

[0023] A swing link is hinged on the side of the telescopic block, and the other end of the swing link is hinged on the middle of the primary swing leg. The swing link, the telescopic block, the primary swing leg and the measuring tool mounting table together form a crank slider mechanism.

[0024] Optionally, the telescopic transmission mechanism comprises:

[0025] A telescopic first-stage active bevel gear is coaxially fixedly connected to the upper part of the swing drive screw;

[0026] A telescopic first-stage transmission member, wherein the telescopic first-stage transmission member is coaxially fixedly connected inside the rotating shaft of the first-stage swing leg;

[0027] The telescopic first-stage driven bevel gear is coaxially fixedly connected to the inner end surface of the telescopic first-stage transmission member, and the telescopic first-stage driven bevel gear is meshed with the telescopic first-stage active bevel gear to form a bevel gear transmission mechanism;

[0028] The telescopic second-stage active bevel gear is coaxially fixedly connected to the outer end surface of the telescopic first-stage transmission member;

[0029] A telescopic secondary transmission member, the telescopic secondary transmission member is rotatably connected to the inner side of the upper portion of the primary swing leg;

[0030] The telescopic secondary driven bevel gear is coaxially fixedly connected to the end of the telescopic secondary transmission member, and the telescopic secondary driven bevel gear is meshed with the telescopic secondary active bevel gear to form a bevel gear transmission mechanism;

[0031] The telescopic three-stage active bevel gear is coaxially fixedly connected to the other end of the telescopic two-stage transmission member;

[0032] A telescopic three-stage transmission member, the telescopic three-stage transmission member is rotatably connected inside the first-stage swing leg;

[0033] The telescopic three-stage driven bevel gear is coaxially fixedly connected to the top of the telescopic three-stage transmission member, and the telescopic three-stage driven bevel gear is meshed with the telescopic three-stage active bevel gear to form a bevel gear transmission mechanism.

[0034] Optionally, the telescopic transmission mechanism comprises:

[0035] A telescopic four-stage active bevel gear, which is coaxially fixedly connected to the bottom of the telescopic three-stage transmission member;

[0036] A telescopic four-stage transmission member, the telescopic four-stage transmission member is rotatably connected to the lower inner side of the first-stage swing leg;

[0037] The telescopic four-stage driven bevel gear is coaxially fixedly connected to the end of the telescopic four-stage transmission member, and the telescopic four-stage active bevel gear is meshed with the telescopic four-stage driven bevel gear to form a bevel gear transmission mechanism;

[0038] A telescopic five-stage active bevel gear, which is coaxially fixedly connected to the other end of the telescopic four-stage transmission member;

[0039] A telescopic driving gear, the telescopic driving gear is rotatably connected to the lower part of the first-stage swing leg;

[0040] The telescopic five-stage driven bevel gear is coaxially fixedly connected to the end of the rotating shaft of the telescopic driving gear, and the telescopic five-stage active bevel gear is meshed with the telescopic five-stage driven bevel gear to form a bevel gear transmission mechanism.

[0041] Optionally, the telescopic transmission mechanism comprises:

[0042] The secondary telescopic rack is fixedly connected to the side of the secondary telescopic leg, and the telescopic driving gear is meshed with the secondary telescopic rack to form a gear rack transmission mechanism.

[0043] Optionally, the middle portion of the three-stage leg fixing piece is an eccentric block structure, and the eccentric block is in contact with the three-stage telescopic leg.

[0044] Optionally, the retraction and extension driving member is a foldable operating handle.

[0045] Beneficial Effects

[0046] The engineering surveying support according to each embodiment of the present invention realizes the synchronous swinging, retraction and extension of the three groups of legs, and realizes the synchronous automatic extension and retraction of the three groups of legs at the same time, which can greatly reduce the operation, improve the operational convenience and improve the work efficiency.

[0047] In addition, the retraction and extension drive member is operated, and the retraction and extension drive member drives the swing drive screw to rotate through the bevel gear transmission mechanism composed of the meshing of the retraction and extension active bevel gear and the retraction and extension driven bevel gear. The swing drive screw drives the telescopic block to slide up and down through the screw nut transmission mechanism composed of the telescopic block and the swing drive screw. The telescopic block drives the primary swing leg to swing through the crank slider mechanism composed of the swing connecting rod, the telescopic block, the primary swing leg, and the measuring tool mounting table, thereby realizing the retraction and extension of the primary swing leg.

[0048] In addition, the swing driving screw drives the first telescopic transmission member to rotate through the bevel gear transmission mechanism composed of the meshing of the first telescopic driven bevel gear and the first telescopic active bevel gear, the first telescopic transmission member drives the second telescopic transmission member to rotate through the bevel gear transmission mechanism composed of the meshing of the second telescopic driven bevel gear and the second telescopic active bevel gear, the second telescopic transmission member drives the third telescopic transmission member to rotate through the bevel gear transmission mechanism composed of the meshing of the third telescopic driven bevel gear and the third telescopic active bevel gear, the third telescopic transmission member drives the fourth telescopic transmission member to rotate through the bevel gear transmission mechanism composed of the meshing of the fourth telescopic active bevel gear and the fourth telescopic driven bevel gear, the fourth telescopic transmission member drives the telescopic driving gear to rotate through the bevel gear transmission mechanism composed of the meshing of the fifth telescopic active bevel gear and the fifth telescopic driven bevel gear, the telescopic driving gear drives the second telescopic leg to slide through the gear and rack transmission mechanism composed of the meshing of the telescopic driving gear and the second telescopic rack, thereby realizing the telescopic and extension of the second telescopic leg.

[0049] In addition, the three-stage support leg fixing piece is rotated and pressed on the three-stage telescopic support leg through the eccentric block to achieve the compression of the three-stage telescopic support leg, and the length of the three-stage telescopic support leg is adjusted to achieve the adjustment of the support angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0051] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0052] In the attached picture:

[0053] Figure 1 A schematic diagram showing the overall structure of an engineering measurement support according to an embodiment of the present invention is shown;

[0054] Figure 2 A schematic diagram showing the interior of an engineering measurement support according to an embodiment of the present invention;

[0055] Figure 3 The engineering measurement support according to the embodiment of the present invention is shown. Figure 2 A local enlarged schematic diagram of the middle A;

[0056] Figure 4 A schematic diagram showing a secondary telescopic support leg and a tertiary telescopic support leg of an engineering measurement support according to an embodiment of the present invention is shown;

[0057] Figure 5 The engineering measurement support according to the embodiment of the present invention is shown. Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0058] Figure 6 A transmission schematic diagram of a swing driving screw of an engineering measurement support according to an embodiment of the present invention is shown;

[0059] Figure 7 A schematic diagram showing a telescopic transmission mechanism of an engineering measurement support according to an embodiment of the present invention is shown;

[0060] Figure 8 The engineering measurement support according to the embodiment of the present invention is shown. Figure 8 A partial enlarged schematic diagram of point C in the middle;

[0061] Fig. 9 A schematic diagram of a three-stage leg fixing member of an engineering measurement support according to an embodiment of the present invention is shown.

[0062] Reference numerals list

[0063] 1. Measuring tool mounting table; 2. First-stage swinging outrigger; 3. Second-stage telescopic outrigger; 301. Second-stage telescopic rack; 4. Third-stage telescopic outrigger; 5. Retracting and extending driving member; 501. Retracting and extending active bevel gear; 6. Telescopic block; 7. Swinging connecting rod; 8. Swinging driving screw; 801. Retracting and extending driven bevel gear; 802. Telescopic first-stage active bevel gear; 9. Telescopic first-stage transmission member; 901. Telescopic first-stage driven bevel gear; 902. Telescopic second-stage active bevel gear; 10 , telescopic two-stage transmission member; 1001, telescopic two-stage driven bevel gear; 1002, telescopic three-stage active bevel gear; 11, telescopic three-stage transmission member; 1101, telescopic three-stage driven bevel gear; 1102, telescopic four-stage active bevel gear; 12, telescopic four-stage transmission member; 1201, telescopic four-stage driven bevel gear; 1202, telescopic five-stage active bevel gear; 13, telescopic driving gear; 1301, telescopic five-stage driven bevel gear; 14, three-stage outrigger fixing member. DETAILED DESCRIPTION

[0064] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0065] Embodiment 1

[0066] Example: Please refer to Figures 1 to 9 :

[0067] The present invention proposes a support structure for engineering measurement, comprising: a measuring tool mounting platform 1;

[0068] The primary swing legs 2 are provided with three primary swing legs 2 in total, and the three primary swing legs 2 are arranged in a circular array and hingedly connected to the outer side of the measuring tool mounting platform 1;

[0069] The secondary telescopic legs 3 are provided with three pieces in total, and the three secondary telescopic legs 3 are respectively slidably connected to the bottom inner sides of the three primary swing legs 2;

[0070] The three-stage telescopic legs 4 are provided with three pieces in total, and the three-stage telescopic legs 4 are respectively slidably connected to the inner sides of the bottoms of the three-stage telescopic legs 3;

[0071] A retractable and extendable driving member 5, which is arranged on the front end surface of the measuring tool mounting platform 1;

[0072] A swing driving screw 8, the swing driving screw 8 is rotatably connected to the inner side of the bottom of the measuring tool mounting platform 1;

[0073] A swing transmission mechanism, which is arranged at the bottom of the measuring tool mounting platform 1;

[0074] The telescopic transmission mechanism is arranged inside the measuring tool mounting platform 1 and the primary swing leg 2;

[0075] The third-level leg fixing member 14 is rotatably connected to the outer side of the lower part of the second-level telescopic leg 3.

[0076] In addition, according to an embodiment of the present invention, Figure 2 As shown, the rotation connection axis of the primary swing leg 2 faces the central axis of the measuring tool mounting platform 1.

[0077] In addition, according to an embodiment of the present invention, Figure 3 As shown, the retracting and extending driving member 5 includes:

[0078] The retractable active bevel gear 501 is coaxially fixedly connected to the shaft end of the retractable driving member 5;

[0079] The swing drive screw 8 includes:

[0080] The retracting and expanding driven bevel gear 801 is coaxially fixedly connected to the top of the swing driving screw 8, and the retracting and expanding active bevel gear 501 is meshed with the retracting and expanding driven bevel gear 801 to form a bevel gear transmission mechanism. In use, the retracting and expanding driving member 5 drives the swing driving screw 8 to rotate through the bevel gear transmission mechanism formed by the meshing of the retracting and expanding active bevel gear 501 and the retracting and expanding driven bevel gear 801.

[0081] In addition, according to an embodiment of the present invention, Figure 2 As shown, the swing transmission mechanism includes:

[0082] The telescopic block 6 is threadedly connected to the bottom of the swing driving screw 8. The telescopic block 6 and the swing driving screw 8 together constitute a screw nut transmission mechanism. In use, when the swing driving screw 8 rotates, the swing driving screw 8 drives the telescopic block 6 to slide up and down through the screw nut transmission mechanism composed of the telescopic block 6 and the swing driving screw 8.

[0083] In addition, according to an embodiment of the present invention, Figure 2 As shown, the swing transmission mechanism includes:

[0084] The swing link 7 is hinged on the side of the telescopic block 6, and the other end of the swing link 7 is hinged on the middle hinge of the primary swing leg 2. The swing link 7, the telescopic block 6, the primary swing leg 2, and the measuring tool mounting table 1 together constitute a crank slider mechanism. During use, when the telescopic block 6 slides up and down, the telescopic block 6 drives the primary swing leg 2 to swing through the crank slider mechanism jointly constituted by the swing link 7, the telescopic block 6, the primary swing leg 2, and the measuring tool mounting table 1, thereby realizing the retraction and extension of the primary swing leg 2.

[0085] In addition, according to an embodiment of the present invention, Figure 3 As shown, the telescopic transmission mechanism includes:

[0086] The telescopic first-stage active bevel gear 802 is coaxially fixedly connected to the upper part of the swing driving screw 8;

[0087] A telescopic primary transmission member 9, the telescopic primary transmission member 9 is coaxially fixedly connected to the inside of the rotating shaft of the primary swing leg 2;

[0088] The telescopic first-stage driven bevel gear 901 is coaxially fixedly connected to the inner end surface of the telescopic first-stage transmission member 9, and the telescopic first-stage driven bevel gear 901 is meshed with the telescopic first-stage active bevel gear 802 to form a bevel gear transmission mechanism;

[0089] The telescopic secondary active bevel gear 902 is coaxially fixedly connected to the outer end surface of the telescopic primary transmission member 9;

[0090] A telescopic secondary transmission member 10, the telescopic secondary transmission member 10 is rotatably connected to the inner side of the upper portion of the primary swing leg 2;

[0091] The telescopic secondary driven bevel gear 1001 is coaxially fixedly connected to the end of the telescopic secondary transmission member 10, and the telescopic secondary driven bevel gear 1001 is meshed with the telescopic secondary active bevel gear 902 to form a bevel gear transmission mechanism;

[0092] The telescopic three-stage active bevel gear 1002 is coaxially fixedly connected to the other end of the telescopic two-stage transmission member 10;

[0093] A telescopic three-stage transmission member 11, the telescopic three-stage transmission member 11 is rotatably connected inside the first-stage swing leg 2;

[0094] The telescopic three-stage driven bevel gear 1101 is coaxially fixedly connected to the top of the telescopic three-stage transmission member 11. The telescopic three-stage driven bevel gear 1101 is meshed with the telescopic three-stage active bevel gear 1002 to form a bevel gear transmission mechanism. In use, when the swing driving screw 8 rotates, the swing driving screw 8 drives the telescopic first-stage transmission member 9 to rotate through the bevel gear transmission mechanism composed of the meshing of the telescopic first-stage driven bevel gear 901 and the telescopic first-stage active bevel gear 802. The telescopic first-stage transmission member 9 drives the telescopic second-stage transmission member 10 to rotate through the bevel gear transmission mechanism composed of the meshing of the telescopic second-stage driven bevel gear 1001 and the telescopic second-stage active bevel gear 902. The telescopic second-stage transmission member 10 drives the telescopic three-stage transmission member 11 to rotate through the bevel gear transmission mechanism composed of the meshing of the telescopic three-stage driven bevel gear 1101 and the telescopic three-stage active bevel gear 1002.

[0095] In addition, according to an embodiment of the present invention, Figure 8 As shown, the telescopic transmission mechanism includes:

[0096] The telescopic four-stage active bevel gear 1102 is coaxially fixedly connected to the bottom of the telescopic three-stage transmission member 11;

[0097] A telescopic four-stage transmission member 12, the telescopic four-stage transmission member 12 is rotatably connected to the lower inner side of the first-stage swing leg 2;

[0098] The telescopic four-stage driven bevel gear 1201 is coaxially fixedly connected to the end of the telescopic four-stage transmission member 12, and the telescopic four-stage active bevel gear 1102 is meshed with the telescopic four-stage driven bevel gear 1201 to form a bevel gear transmission mechanism;

[0099] A telescopic five-stage active bevel gear 1202, which is coaxially fixedly connected to the other end of the telescopic four-stage transmission member 12;

[0100] The telescopic driving gear 13 is rotatably connected to the lower part of the primary swing leg 2;

[0101] The telescopic five-stage driven bevel gear 1301 is coaxially fixedly connected to the end of the rotating shaft of the telescopic driving gear 13, and the telescopic five-stage active bevel gear 1202 is meshed with the telescopic five-stage driven bevel gear 1301 to jointly form a bevel gear transmission mechanism. In use, when the telescopic three-stage transmission member 11 rotates, the telescopic three-stage transmission member 11 drives the telescopic four-stage transmission member 12 to rotate through the telescopic four-stage active bevel gear 1102 meshing with the telescopic four-stage driven bevel gear 1201 to jointly form a bevel gear transmission mechanism, and the telescopic four-stage transmission member 12 drives the telescopic driving gear 13 to rotate through the telescopic five-stage active bevel gear 1202 meshing with the telescopic five-stage driven bevel gear 1301 to jointly form a bevel gear transmission mechanism.

[0102] In addition, according to an embodiment of the present invention, Figure 5 As shown, the telescopic transmission mechanism includes:

[0103] The secondary telescopic rack 301 is fixedly connected to the side of the secondary telescopic leg 3, and the telescopic driving gear 13 is meshed with the secondary telescopic rack 301 to form a gear rack transmission mechanism. In use, when the telescopic driving gear 13 rotates, the telescopic driving gear 13 drives the secondary telescopic leg 3 to slide through the gear rack transmission mechanism formed by the meshing of the telescopic driving gear 13 and the secondary telescopic rack 301, thereby realizing the telescopic movement of the secondary telescopic leg 3.

[0104] In addition, according to an embodiment of the present invention, Fig. 9 As shown, the middle part of the three-stage leg fixing member 14 is an eccentric block structure, and the eccentric block is in contact with the three-stage telescopic leg 4. During use, the three-stage leg fixing member 14 is rotated to press the three-stage telescopic leg 4 through the eccentric block, thereby pressing the three-stage telescopic leg 4 and adjusting the length of the three-stage telescopic leg 4.

[0105] In addition, according to an embodiment of the present invention, Figure 7 As shown, the stowage and extension driving member 5 is a foldable operating handle.

[0106] Specific usage and function of this embodiment: When in use, operate the retracting and extending driving member 5, the retracting and extending driving member 5 drives the swing driving screw 8 to rotate through the bevel gear transmission mechanism composed of the meshing of the retracting and extending active bevel gear 501 and the retracting and extending driven bevel gear 801, the swing driving screw 8 drives the telescopic block 6 to slide up and down through the screw nut transmission mechanism composed of the telescopic block 6 and the swing driving screw 8, the telescopic block 6 drives the primary swing leg 2 to swing through the crank slider mechanism composed of the swing connecting rod 7, the telescopic block 6, the primary swing leg 2, and the measuring tool mounting platform 1, so as to realize the retraction and extension of the primary swing leg 2; at the same time, the swing driving screw 8 drives the telescopic primary transmission member 9 to rotate through the bevel gear transmission mechanism composed of the meshing of the telescopic primary driven bevel gear 901 and the telescopic primary active bevel gear 802, the telescopic primary transmission member 9 drives the telescopic secondary transmission member 1 through the bevel gear transmission mechanism composed of the meshing of the telescopic secondary driven bevel gear 1001 and the telescopic secondary active bevel gear 902 0 rotates, the telescopic secondary transmission member 10 drives the telescopic third-stage transmission member 11 to rotate through the bevel gear transmission mechanism composed of the meshing of the telescopic third-stage driven bevel gear 1101 and the telescopic third-stage active bevel gear 1002, the telescopic third-stage transmission member 11 drives the telescopic fourth-stage transmission member 12 to rotate through the meshing of the telescopic fourth-stage active bevel gear 1102 and the telescopic fourth-stage driven bevel gear 1201 to form a bevel gear transmission mechanism, the telescopic fourth-stage transmission member 12 drives the telescopic driving gear 13 to rotate through the meshing of the telescopic fifth-stage active bevel gear 1202 and the telescopic fifth-stage driven bevel gear 1301 to form a bevel gear transmission mechanism, the telescopic driving gear 13 drives the secondary telescopic leg 3 to slide through the gear rack transmission mechanism composed of the meshing of the telescopic driving gear 13 and the secondary telescopic rack 301, thereby realizing the telescoping of the secondary telescopic leg 3; the third-stage leg fixing member 14 is rotated and pressed on the third-stage telescopic leg 4 through the eccentric block, thereby realizing the pressing of the third-stage telescopic leg 4 and adjusting the length of the third-stage telescopic leg 4.

[0107] Embodiment 2

[0108] The present invention proposes a support structure for engineering measurement, comprising: a measuring tool mounting platform 1, a first-level swinging leg 2, a second-level telescopic leg 3, a second-level telescopic rack 301, a third-level telescopic leg 4, a retracting and extending driving member 5, a retracting and extending active bevel gear 501, a telescopic block 6, a swing connecting rod 7, a swing driving screw 8, a retracting and extending driven bevel gear 801, a telescopic first-level active bevel gear 802, a telescopic first-level transmission member 9, a telescopic first-level driven bevel gear 901, a telescopic second-level active bevel gear 902, a telescopic second-level transmission member 10, a telescopic second-level driven bevel gear 1001, a telescopic third-level active bevel gear 1002, a telescopic third-level transmission member 11, a telescopic third-level driven bevel gear 1101, a telescopic fourth-level active bevel gear 1102, a telescopic fourth-level transmission member 12, a telescopic fourth-level driven bevel gear 1201, a telescopic fifth-level active bevel gear 1202, a telescopic driving gear 13, a telescopic fifth-level driven bevel gear 1301, and a third-level leg fixing member 14;

[0109] The difference between the second embodiment and the first embodiment is that the retractable and deployable driving member 5 is an electric motor. During use, the motor is used to realize the extension and deployment at the same time. The operation is convenient and the working efficiency is higher.

[0110] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0111] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A support structure for engineering measurement, characterized in that: include: Measuring tool mounting table (1); A primary swing leg (2), wherein the primary swing legs (2) are provided with three pieces in total, and the three primary swing legs (2) are arranged in a circular array and hingedly connected to the outer side of the measuring tool mounting platform (1); A secondary telescopic support leg (3), wherein the secondary telescopic support leg (3) is provided with three pieces in total, and the three secondary telescopic support legs (3) are respectively slidably connected to the inner sides of the bottoms of the three primary swinging support legs (2); A three-stage telescopic support leg (4), wherein the three-stage telescopic support leg (4) is provided with three pieces in total, and the three three-stage telescopic support legs (4) are respectively slidably connected to the inner sides of the bottoms of the three second-stage telescopic support legs (3); A retractable and extendable driving member (5), wherein the retractable and extendable driving member (5) is arranged on the front end surface of the measuring tool mounting platform (1); A swing drive screw (8), the swing drive screw (8) being rotatably connected to the inner side of the bottom of the measuring tool mounting platform (1); A swing transmission mechanism, wherein the swing transmission mechanism is arranged at the bottom of the measuring tool mounting platform (1); A telescopic transmission mechanism, the telescopic transmission mechanism being arranged inside the measuring tool mounting platform (1) and the primary swing leg (2); A third-level leg fixing member (14), wherein the third-level leg fixing member (14) is rotatably connected to the outer side of the lower portion of the second-level telescopic leg (3); The retracting and extending driving member (5) drives the swing driving screw (8) to rotate, one end of the swing transmission mechanism is connected to the swing driving screw (8), the other end of the swing transmission mechanism is connected to the primary swing leg (2), the swing driving screw (8) is connected to the telescopic transmission mechanism, the other end of the telescopic transmission mechanism is connected to the secondary telescopic leg (3), the swing driving screw (8) rotates to drive the swing transmission mechanism to move, thereby driving the primary swing leg (2) to swing, while the swing driving screw (8) rotates to drive the telescopic transmission mechanism to move, thereby driving the secondary telescopic leg (3) to extend and retract.

2. A support structure for engineering surveying as claimed in claim 1, characterized in that: The rotation connection axis of the primary swing leg (2) faces the central axis of the measuring tool mounting platform (1).

3. A support structure for engineering surveying as claimed in claim 1, characterized in that: The retracting and extending driving member (5) comprises: A retractable active bevel gear (501), wherein the retractable active bevel gear (501) is coaxially fixedly connected to the shaft end of the retractable driving member (5); The swing drive screw (8) comprises: The expansion and retraction driven bevel gear (801) is coaxially fixedly connected to the top of the swing driving screw (8), and the expansion and retraction active bevel gear (501) is meshed with the expansion and retraction driven bevel gear (801) to form a bevel gear transmission mechanism.

4. A support structure for engineering surveying as claimed in claim 1, characterized in that: The swing transmission mechanism comprises: A telescopic block (6) is threadedly connected to the bottom of a swing driving screw (8); the telescopic block (6) and the swing driving screw (8) together form a screw nut transmission mechanism.

5. A support structure for engineering surveying as claimed in claim 4, characterized in that: The swing transmission mechanism comprises: A swing link (7) is hingedly connected to the side of the telescopic block (6), and the other end of the swing link (7) is hingedly connected to the middle of the primary swing leg (2). The swing link (7), the telescopic block (6), the primary swing leg (2), and the measuring tool mounting platform (1) together form a crank slider mechanism.

6. A support structure for engineering surveying as claimed in claim 1, characterized in that: The telescopic transmission mechanism comprises: A telescopic first-stage active bevel gear (802), wherein the telescopic first-stage active bevel gear (802) is coaxially fixedly connected to the upper portion of the swing drive lead screw (8); A telescopic primary transmission member (9), wherein the telescopic primary transmission member (9) is coaxially fixedly connected to the interior of the rotating shaft of the primary swing leg (2); A telescopic first-stage driven bevel gear (901), wherein the telescopic first-stage driven bevel gear (901) is coaxially fixedly connected to the inner end surface of the telescopic first-stage transmission member (9), and the telescopic first-stage driven bevel gear (901) is meshed with the telescopic first-stage active bevel gear (802) to form a bevel gear transmission mechanism; A telescopic secondary active bevel gear (902), wherein the telescopic secondary active bevel gear (902) is coaxially fixedly connected to the outer end surface of the telescopic primary transmission member (9); A telescopic secondary transmission member (10), the telescopic secondary transmission member (10) being rotatably connected to the inner side of the upper portion of the primary swing leg (2); A telescopic secondary driven bevel gear (1001), wherein the telescopic secondary driven bevel gear (1001) is coaxially fixedly connected to the end of the telescopic secondary transmission member (10), and the telescopic secondary driven bevel gear (1001) is meshed with the telescopic secondary active bevel gear (902) to form a bevel gear transmission mechanism; A telescopic three-stage active bevel gear (1002), wherein the telescopic three-stage active bevel gear (1002) is coaxially fixedly connected to the other end of the telescopic two-stage transmission member (10); A telescopic three-stage transmission member (11), wherein the telescopic three-stage transmission member (11) is rotatably connected inside the first-stage swing leg (2); The telescopic three-stage driven bevel gear (1101) is coaxially fixedly connected to the top of the telescopic three-stage transmission member (11), and the telescopic three-stage driven bevel gear (1101) is meshed with the telescopic three-stage active bevel gear (1002) to form a bevel gear transmission mechanism.

7. A support structure for engineering surveying as claimed in claim 6, characterized in that: The telescopic transmission mechanism comprises: A telescopic four-stage active bevel gear (1102), wherein the telescopic four-stage active bevel gear (1102) is coaxially fixedly connected to the bottom of the telescopic three-stage transmission member (11); A telescopic four-stage transmission member (12), wherein the telescopic four-stage transmission member (12) is rotatably connected to the lower inner side of the first-stage swing leg (2); A telescopic four-stage driven bevel gear (1201), wherein the telescopic four-stage driven bevel gear (1201) is coaxially fixedly connected to the end of the telescopic four-stage transmission member (12), and the telescopic four-stage active bevel gear (1102) is meshed with the telescopic four-stage driven bevel gear (1201) to form a bevel gear transmission mechanism; A telescopic five-stage active bevel gear (1202), wherein the telescopic five-stage active bevel gear (1202) is coaxially fixedly connected to the other end of the telescopic four-stage transmission member (12); A telescopic driving gear (13), wherein the telescopic driving gear (13) is rotatably connected to the lower part of the primary swing leg (2); The telescopic five-stage driven bevel gear (1301) is coaxially fixedly connected to the end of the rotating shaft of the telescopic driving gear (13), and the telescopic five-stage active bevel gear (1202) is meshed with the telescopic five-stage driven bevel gear (1301) to form a bevel gear transmission mechanism.

8. A support structure for engineering surveying as claimed in claim 7, characterized in that: The telescopic transmission mechanism comprises: A secondary telescopic rack (301), wherein the secondary telescopic rack (301) is fixedly connected to the side of the secondary telescopic leg (3), and the telescopic driving gear (13) is meshed with the secondary telescopic rack (301) to form a gear rack transmission mechanism.

9. The support structure for engineering surveying as claimed in claim 1, characterized in that: The middle part of the three-stage supporting leg fixing member (14) is an eccentric block structure, and the eccentric block is in contact with the three-stage telescopic supporting leg (4).

10. The support structure for engineering surveying as claimed in claim 1, characterized in that: The retractable and extended driving member (5) is a foldable operating handle.

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