House building project positioning measurement device

Abstract

The utility model relates to the technical field of housing construction engineering, and discloses a housing construction engineering positioning and measuring device which comprises a supporting table, a supporting rod is movably connected in the supporting table in a penetrating mode, a measuring instrument is fixedly connected to the upper end of the supporting rod, and a supporting mechanism is arranged on the lower surface of the supporting table. A rack is fixedly connected to the left side surface of the supporting rod, and an adjusting mechanism is arranged on the upper surface of the supporting table and located on the left side of the supporting rod. According to the utility model, in the aspect of height adjustment, through the linkage design of the supporting rod and the rack and the combination of a mechanical locking mechanism of the gear, the ratchet wheel and the pawl, stepless precise adjustment of the measuring instrument is realized, and the motor fault risk and power consumption are avoided; in addition, the rotating rod can be locked through the positioning bolt after adjustment is completed, accidental displacement of the measuring instrument is prevented, and the reliability of the device is further improved. According to the design, through a pure mechanical structure, the height adjusting process is simplified, the maintenance cost is reduced, and the device is particularly suitable for engineering scenes in a power-free environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to house building engineering technical field, concretely is a house building engineering positioning measurement device. BACKGROUND

[0002] House building engineering refers to various types of housing construction and its auxiliary facilities and the installation engineering and indoor and outdoor decoration engineering of line, pipeline and equipment matched therewith, and positioning measurement is needed when building houses, which needs to use positioning measurement device.

[0003] The existing positioning measurement device is generally supported by a tripod during use, and the measuring instrument needs to be aligned before measurement, but the height of the tripod needs to be adjusted to change the measurement height of the measuring instrument during measurement, which causes the measuring instrument to be misaligned and needs to be aligned again.

[0004] A house building engineering positioning measurement device (authorized publication number CN212158609U) is disclosed in Chinese patent, which adjusts the height of the measuring instrument by pressing the controller to start the drive motor, rotates the transmission shaft by the drive motor, rotates the lead screw by the transmission shaft, and moves the support rod upward along the lead screw to adjust the height of the measuring instrument conveniently without moving the tripod to avoid re-alignment.

[0005] However, the height adjustment is realized by the electric telescopic rod, which has the following problems:

[0006] The electric telescopic rod relies on the accurate control of the stepping motor or servo motor, but in actual use, it is difficult to realize stepless adjustment and micron-level positioning accuracy due to transmission clearance, motor resolution and environmental vibration, resulting in systematic deviation of measurement data.

[0007] The electric telescopic rod contains complex components such as drive motor, transmission shaft, lead screw, battery and controller, which needs to be maintained regularly, such as battery endurance, transmission belt tension, motor performance calibration, which is complicated and costly.

[0008] In the case of power failure or motor failure, the electric telescopic rod cannot be adjusted manually, which causes the measurement task to be interrupted and delays the project progress. UTILITY MODEL CONTENT

[0009] The utility model aims to provide a house building engineering positioning measurement device to solve the problems in the above background technology.

[0010] To achieve the above purpose, the utility model provides the following technical scheme:

[0011] The utility model provides a house building engineering positioning measurement device, including support platform, the inside activity of support platform is connected with support rod, the upper end of support rod is fixed with measuring instrument, the lower surface of support platform is provided with support mechanism,

[0012] The left side surface of support rod is fixed with rack, the upper surface of support platform is located support rod's left side and is provided with adjusting mechanism, adjusting mechanism includes C type board, the front and rear two side surfaces of C type board are jointly connected with rotating rod through, the outer surface of rotating rod is fixed with gear at the inside of C type board, and the outer surface of rotating rod is fixed with ratchet wheel at the front of C type board, the front surface of C type board is located the above of rotating rod and is provided with positioning mechanism, the front end of rotating rod is fixed with positioning board, the front surface one end of positioning board is connected with positioning peg through screw thread,

[0013] As a further scheme of the utility model: the support mechanism includes a support base, a plurality of support blocks are evenly hinged to the ends of the support base, and support legs are fixed to the lower ends of the support blocks.

[0014] As a further scheme of the utility model: the positioning mechanism includes a spring, a positioning block is fixed to the upper end of the spring, a pawl is fixed to the lower end of the spring, and a positioning rod is rotatably connected to the right end of the pawl.

[0015] As a further scheme of the utility model: the rack is movably penetrated through the support platform, the lower end of the C-shaped plate is fixed to the upper surface of the support platform, and the gear is meshingly connected to the rack.

[0016] As a further scheme of the utility model: the upper end of the support base is fixed to the lower surface of the support platform, and the support rod and the rack are movably penetrated through the support base.

[0017] As a further scheme of the utility model: the pawl is attached to the ratchet wheel, and the rear ends of the positioning block and the positioning rod are fixed to the front surface of the C-shaped plate.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] In the height adjustment aspect, the utility model realizes stepless accurate adjustment of the measuring instrument through the linkage design of the support rod and the rack in combination with the mechanical locking mechanism of the gear, the ratchet wheel, and the pawl. When being pulled upward, the rack drives the gear to rotate counterclockwise, the ratchet wheel and the pawl pressed by the spring form one-way self-locking, and the height stability is ensured. When descending, the pawl locking only needs to be manually released, which is simple to operate and does not need to rely on the electric drive system, thereby avoiding the motor failure risk and power consumption. In addition, after the adjustment is completed, the rotating rod can be locked by the positioning peg to prevent accidental displacement of the measuring instrument, and the device reliability is further improved. The design simplifies the height adjustment process through a pure mechanical structure, reduces the maintenance cost, and is especially suitable for engineering scenes in a power-free environment.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a kind of house building engineering positioning measurement device structure schematic view;

[0021] Fig. 2 It is a kind of house building engineering positioning measurement device structure schematic view of support mechanism;

[0022] Fig. 3 It is a kind of house building engineering positioning measurement device structure schematic view of adjusting mechanism;

[0023] Fig. 4 It is a kind of house building engineering positioning measurement device structure schematic view of positioning mechanism.

[0024] In the figure: 1, support table;2, support rod;3, measuring instrument;4, support mechanism;5, support seat;6, support block;7, support leg;8, rack;9, adjusting mechanism;10, C type board;11, rotating rod;12, gear;13, ratchet;14, positioning mechanism;15, spring;16, positioning block;17, pawl;18, positioning rod;19, positioning plate;20, positioning bolt. DETAILED DESCRIPTION

[0025] Please refer to Fig. 1 And Fig. 2 In the utility model embodiment, a house building engineering positioning measurement device, including support table 1, the inside movable penetration connection of support table 1 is provided with support rod 2, the upper end of support rod 2 is fixedly connected with measuring instrument 3, the lower surface of support table 1 is provided with support mechanism 4, support mechanism 4 includes support seat 5, the upper end of support seat 5 is fixedly connected to the lower surface of support table 1, the end of support seat 5 is uniformly damped hinged with multiple support blocks 6, the lower end of support block 6 is fixedly connected with support leg 7;

[0026] Measuring instrument 3 is used for building engineering positioning measurement, which can be total station specifically;

[0027] Three support blocks 6 are evenly distributed in annular, and the included angle of adjacent two support blocks 6 is 120 °;

[0028] Support block 6 rotates (need to be manually rotated) in the inside of support seat 5 and can keep still, and its principle is same as the screen of notebook computer;

[0029] The material of support seat 5 and support block 6 is preferably phosphor bronze, which has high wear resistance, and the surface of the same is coated with PTFE (teflon) coating, which can reduce the friction coefficient, and is suitable for high-precision stepless adjustment.

[0030] In Figs. 1-4The left side surface of the support rod 2 is fixedly connected with a rack 8, the support rod 2 and the rack 8 are movably penetrated through the support base 5, the rack 8 is movably penetrated through the support table 1, the upper surface of the support table 1 is provided with an adjusting mechanism 9 at the left side of the support rod 2, the adjusting mechanism 9 comprises a C-shaped plate 10, the lower end of the C-shaped plate 10 is fixedly connected to the upper surface of the support table 1, the front and rear side surfaces of the C-shaped plate 10 are movably connected with a rotating rod 11, the outer surface of the rotating rod 11 is fixedly connected with a gear 12 at the inner side of the C-shaped plate 10, the gear 12 is meshingly connected to the rack 8, the outer surface of the rotating rod 11 is fixedly connected with a ratchet wheel 13 at the front of the C-shaped plate 10, the front surface of the C-shaped plate 10 is provided with a positioning mechanism 14 above the rotating rod 11, the positioning mechanism 14 comprises a spring 15, the upper end of the spring 15 is fixedly connected with a positioning block 16, and the lower end of the spring 15 is fixedly connected with a pawl 17, the pawl 17 is attached to the ratchet wheel 13, the right end of the pawl 17 is movably connected with a positioning rod 18, the rear ends of the positioning block 16 and the positioning rod 18 are fixedly connected to the front surface of the C-shaped plate 10, the front end of the rotating rod 11 is fixedly connected with a positioning plate 19, and one end of the front surface of the positioning plate 19 is movably connected with a positioning bolt 20;

[0031] The pawl 17 is attached to the ratchet wheel 13, so that the ratchet wheel 13 can be normally counterclockwise rotated and cannot be clockwise rotated; after pulling the pawl 17 away from the ratchet wheel 13, the ratchet wheel 13 can be clockwise rotated;

[0032] When it is needed to adjust the height of the measuring instrument 3 to be higher, the measuring instrument 3 can be directly pulled upward, and the adjusted measuring instrument 3 can be kept at the position, in the process, the rack 8 moves upward with the support rod 2, so that the gear 12 is counterclockwise rotated; when it is needed to adjust the height of the measuring instrument 3 to be lower, the measuring instrument 3 is held by one hand, and the pawl 17 is pulled away from the ratchet wheel 13 by the other hand, so that the measuring instrument 3 can be slowly lowered.

[0033] When the whole measuring device is not used, the height of the measuring instrument 3 can be adjusted to be the lowest, at this time, the positioning bolt 20 is right against the front surface of the C-shaped plate 10, and the rotating rod 11 cannot be rotated by rotating the positioning bolt 20 against the C-shaped plate 10, so that the displacement of the measuring instrument 3 is avoided.

[0034] The working principle of the utility model is: during measurement, the supporting legs 7 are pulled and unfolded by manpower, and the 60° uniform distribution structure forms a triangular stable support; during height adjustment, the measuring instrument 3 on the supporting table 1 is pulled upward, the supporting rod 2 drives the rack 8 to move upward synchronously, the driving gear 12 rotates counterclockwise, at this time, the ratchet wheel 13 rotates with the rotating rod 11, the pawl 17 realizes one-way locking by elastically pressing the ratchet wheel 13 through the spring 15; during height reduction, the pawl 17 needs to be manually pulled upward to disengage from the ratchet wheel 13, and the measuring instrument 3 is slowly lowered after being unlocked; during storage, the measuring instrument 3 is lowered to the lowest position, the rotating positioning bolt 20 is tightly pressed against the front surface of the C-shaped plate 10, the rotating rod 11 is locked to prevent the gear 12 from rotating, and at the same time, the supporting legs 7 are folded to make the supporting block 6 adhere to the supporting base 5, and the compact storage of the device is completed.

[0035] The above is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0036] In the description of the utility model, it should be explained that, unless explicitly defined and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A house building engineering positioning measuring device, comprising a support table (1), a support rod (2) movably penetratingly connected inside the support table (1), a measuring instrument (3) fixedly connected to the upper end of the support rod (2), and a support mechanism (4) arranged on the lower surface of the support table (1). characterized in that A rack (8) is fixedly connected to the left surface of the support rod (2), an adjusting mechanism (9) is arranged on the upper surface of the support table (1) at the left side of the support rod (2), the adjusting mechanism (9) comprises a C-shaped plate (10), a rotating rod (11) movably penetratingly connected to the front and rear surfaces of the C-shaped plate (10), a gear (12) fixedly connected to the outer surface of the rotating rod (11) at the inner side of the C-shaped plate (10), a ratchet wheel (13) fixedly connected to the outer surface of the rotating rod (11) at the front of the C-shaped plate (10), a positioning mechanism (14) arranged on the front surface of the C-shaped plate (10) at the upper side of the rotating rod (11), a positioning plate (19) fixedly connected to the front end of the rotating rod (11), and a positioning bolt (20) threadedly connected to the front surface of the positioning plate (19) at one end.

2. The positioning measurement device for housing construction work according to claim 1, wherein The support mechanism (4) comprises a support seat (5), a plurality of support blocks (6) are evenly hingedly connected to the end of the support seat (5), and a support leg (7) is fixedly connected to the lower end of the support block (6).

3. The positioning measurement device for housing construction work according to claim 1, wherein The positioning mechanism (14) comprises a spring (15), a positioning block (16) fixedly connected to the upper end of the spring (15), and a pawl (17) fixedly connected to the lower end of the spring (15), and a positioning rod (18) rotatably connected to the inner right end of the pawl (17).

4. The positioning measurement device for housing construction work according to claim 1, wherein The rack (8) movably penetrates the support table (1), the lower end of the C-shaped plate (10) is fixedly connected to the upper surface of the support table (1), and the gear (12) is meshingly connected to the rack (8).

5. The positioning measurement device for housing construction work according to claim 2, wherein The upper end of the support seat (5) is fixedly connected to the lower surface of the support table (1), and the support rod (2) and the rack (8) movably penetrate the support seat (5).

6. The positioning measurement device for housing construction work according to claim 3, wherein The pawl (17) is attached to the ratchet wheel (13), and the rear ends of the positioning block (16) and the positioning rod (18) are fixedly connected to the front surface of the C-shaped plate (10).

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