Quickly-built theodolite target measuring device

Abstract

The utility model discloses a theodolite measuring target device capable of being quickly built, which comprises a support frame, a light-transmitting plate and an outer cup which are sequentially arranged from top to bottom, the light-transmitting plate is clamped between the support frame and the outer cup, and the support frame and the outer cup are fixedly connected close to the edge through a fastener; the supporting frame is provided with a first center hole, the light-transmitting plate is provided with a second center hole, the outer cup is provided with a third center hole, the center line of the first center hole, the center line of the second center hole and the center line of the third center hole are coaxial, the third center hole is provided with a needle clamping device, and the bottom of the needle clamping device is fixedly connected with a pointer. A threaded hole in the top of the needle clamping device penetrates through the second center hole and is fixedly connected to the light-transmitting plate through a fastener, and a light source is arranged in the first center hole of the supporting frame. The utility model discloses a theodolite target measuring device which is small in size, light in weight and convenient for surveying and mapping personnel to carry during outdoor operation.

Description

Technical Field

[0001] The utility model belongs to the field of engineering measurement and detection equipment, and in particular relates to a quickly constructed theodolite target measurement device. Background Art

[0002] In surveying and mapping operations, workers generally use the target as the aiming target, and the target is usually fixed on a tripod. The method of using the target is: by adjusting the height of the tripod, three legs, three-claw base and three foot screws to keep the three-claw base level; then use the plumb bob or the optical alignment on the target base to align the center of the three-claw base (i.e., the target axis) with the ground survey station. The above two steps affect each other and need to be repeated alternately until both the three-claw base is level and the center of the ground survey station is aligned. Finally, it is used as the aiming target to aim instruments such as theodolites or total stations. This method of using a traditional tripod and a target as a sighting target is complicated and time-consuming, and is prone to leveling errors and ground survey station alignment errors, which in turn affects the accuracy of the measurement results. In addition, in field operations, operators usually need to carry a lot of items. The tripod and the target are relatively large and heavy, which adds a burden to the operator. In addition, the target plate itself also needs to be calibrated regularly. The accumulation of multiple errors increases the measurement error. Therefore, it is necessary to develop a theodolite measurement target device that can be quickly built to ensure the rapid construction of the theodolite measurement target, effectively control errors and improve measurement accuracy. Utility Model Content

[0003] The purpose of the utility model is to solve the problems of the prior art and provide a fast-built theodolite target measurement device. This target device eliminates the need for a tripod and a target plate through innovative structural design, eliminates the need for complicated leveling and centering steps, and greatly reduces weight and volume. During use, the target device is directly placed on a ground survey station, the middle indicator needle tip is aligned with the center of the ground survey station, and the outer cup opening is facing the aiming instrument, and the entire process of rear-view erection is completed, and the theodolite or total station and other instruments can be aimed.

[0004] In order to solve the technical problem, the technical solution of the utility model is: a quickly constructed theodolite target measurement device, comprising a support frame, a light-transmitting plate and an outer cup arranged in sequence from top to bottom, the light-transmitting plate is clamped between the support frame and the outer cup, and the bottom edge of the support frame and the top edge of the outer cup are fixedly connected by a first fastener; the support frame is provided with a first center hole, the light-transmitting plate is provided with a second center hole, and the outer cup is provided with a third center hole, the center lines of the first center hole, the second center hole and the third center hole are coaxial, a needle clamp is provided in the third center hole, the bottom of the needle clamp is fixedly connected to the pointer, the threaded hole at the top of the needle clamp passes through the second center hole and is fixedly connected to the light-transmitting plate by a second fastener, a light source is provided in the first center hole of the support frame, the bottom of the light source is provided with a threaded hole adapted to the top of the needle clamp, and the threaded hole of the light source is fixedly connected to the thread at the top of the needle clamp.

[0005] Preferably, the light source can be replaced by a prism assembly, which includes a prism connector, a prism fixture and a prism. A prism connector is provided in the first center hole of the support frame, and a prism fixture is connected to the top of the prism connector. A prism is provided in the prism fixture, and the prism fixture is used to fix the prism. A threaded hole that matches the top of the needle clamp is provided at the bottom of the prism connector, and the threaded hole at the bottom of the prism connector is fixedly connected to the thread at the top of the needle clamp. The prism connector is used to make the center line of the prism coincide with the center line of the needle clamp.

[0006] Preferably, the first fastener and the second fastener are both screws.

[0007] Preferably, a U-shaped opening is further provided on the top of the outer cup, and the outer cup is in the shape of a round cup opening downward.

[0008] Preferably, the light-transmitting plate is a transparent acrylic plate.

[0009] Preferably, the light source is a lamp.

[0010] Preferably, the pointer is connected to the needle clamp via a nut at the bottom of the needle clamp.

[0011] Preferably, the overall shape of the support frame connected to the outer cup is a frustum, and the bottom size of the support frame is matched with the top size of the outer cup.

[0012] Preferably, the support frame is shaped like a truncated cone, and a fourth center hole is provided in the support frame. The circular hole diameter of the fourth center hole is larger than the circular hole diameter of the first center hole. The fourth center hole is arranged at the upper end of the first center hole and is integrally formed with the first center hole.

[0013] Preferably, the prism connector and the prism holder are both provided with light holes, and the center lines of the light holes are on the same axis.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] The utility model discloses a fast-built theodolite target measurement device, which is small and light, and convenient for surveying and mapping personnel to carry when working outdoors. The device can significantly shorten the rear-view erection time, improve work efficiency, reduce the items that workers carry outdoors, reduce costs, and make the wire measurement task faster and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , a schematic structural diagram of a quickly constructed theodolite target measurement device with a light source according to the utility model;

[0017] Figure 2 , a schematic structural diagram of a fast-built theodolite target measurement device with a prism according to the utility model;

[0018] Figure 3 , a schematic diagram of a support frame structure of a quickly constructed theodolite target measurement device of the utility model;

[0019] Figure 4 , a top view of a support frame structure of a quickly constructed theodolite target measurement device of the utility model.

[0020] Description of reference numerals:

[0021] 1. Support frame, 2. Translucent plate, 3. Outer cup, 4. Pointer, 5. Needle clamp, 6. Light source, 7. Prism connector, 8. Prism, 9. First fastener, 10. Second fastener, 11. U-shaped opening, 12. Prism holder, 12-1. Concave circular groove, 12-2. Round button;

[0022] 101. First center hole, 102. Fourth center hole, 201. Second center hole, 301. Third center hole. DETAILED DESCRIPTION

[0023] The following describes the specific implementation of the utility model in conjunction with embodiments:

[0024] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] Example 1

[0026] like Figure 1-4 As shown, the utility model discloses a quickly constructed theodolite target measurement device, comprising a support frame 1, a light-transmitting plate 2 and an outer cup 3 arranged in sequence from top to bottom, the light-transmitting plate 2 is clamped between the support frame 1 and the outer cup 3, and the bottom edge of the support frame 1 and the top edge of the outer cup 3 are fixedly connected by a first fastener 9; the support frame 1 is provided with a first center hole 101, the light-transmitting plate 2 is provided with a second center hole 201, and the outer cup 3 is provided with a third center hole 301, the first center hole 101, the second center hole 201, and the third center hole 301. The center lines of the center hole 201 and the third center hole 301 are coaxial, and a needle clamp 5 is provided in the third center hole 301. The bottom of the needle clamp 5 is fixedly connected to the pointer 4, and the threaded hole at the top of the needle clamp 5 passes through the second center hole 201 and is fixedly connected to the light-transmitting plate 2 through the second fastener 10. A light source 6 is provided in the first center hole 101 of the support frame 1, and a threaded hole matching the top of the needle clamp 5 is provided at the bottom of the light source 6, and the threaded hole of the light source 6 is fixedly connected to the thread at the top of the needle clamp 5.

[0027] Preferably, the light source 6 can be replaced by a prism assembly, which includes a prism connector 7, a prism fixture 12 and a prism 8. A prism connector 7 is provided in the first center hole 101 of the support frame 1. The top of the prism connector 7 is connected to the prism fixture 12. The prism fixture 12 is provided with a prism 8. The prism fixture 12 is used to fix the prism 8. A threaded hole that matches the top of the needle clamp 5 is provided at the bottom of the prism connector 7. The threaded hole at the bottom of the prism connector 7 is fixedly connected to the thread at the top of the needle clamp 5. The prism connector 7 is used to make the center line of the prism 8 coincide with the center line of the needle clamp 5.

[0028] The supporting frame and the outer cup are clamped to fix the acrylic plate, and the light source is placed on the round table on the upper part of the supporting frame.

[0029] The needle clamp clamps the pointer and can adjust the length of the pointer leakage.

[0030] Prisms can be used to measure elevation and distance during surveying.

[0031] The prism holder 12 is processed with a concave circular groove 12-1 and a circular button 12-2. The circular button 12-2 is arranged on the concave circular groove 12-1. Pressing the circular button 12-2 can mount the 8-prism on the prism connector.

[0032] Example 2

[0033] Preferably, the first fastener 9 and the second fastener 10 are both screws.

[0034] Preferably, a U-shaped opening 11 is further provided at the top of the outer cup 3, and the outer cup 3 is in the shape of a round cup opening downward.

[0035] The outer cup is a thin-walled metal cone, with a bright paint sprayed on the outer surface for easy identification. One side of the outer cup has a U-shaped opening for the theodolite to aim at the pointer inside it; a light source is placed on the upper part of the outer cup or a prism is connected.

[0036] Preferably, the light-transmitting plate 2 is a transparent acrylic plate.

[0037] Acrylic plate Acrylic plate fixes the needle clamp, and a transparent acrylic plate is used to allow the light from the upper light source to pass through and illuminate the pointer at the lower part.

[0038] Preferably, the light source 6 is a lamp.

[0039] Preferably, the pointer 4 is connected to the needle clamp 5 via a nut at the bottom of the needle clamp 5 .

[0040] The lower end of the pointer should be aligned with the center of the measuring station.

[0041] Preferably, the overall shape of the support frame 1 connected to the outer cup 3 is a frustum, and the bottom size of the support frame 1 is matched with the top size of the outer cup 3 .

[0042] Preferably, the support frame 1 is shaped like a truncated cone, and a fourth center hole 102 is further provided in the support frame 1. The circular hole diameter of the fourth center hole 102 is larger than the circular hole diameter of the first center hole 101. The fourth center hole 102 is arranged at the upper end of the first center hole 101 and is integrally formed with the first center hole 101.

[0043] Preferably, the prism connector 7 and the prism holder 12 are both provided with light holes, and the center lines of the light holes are on the same axis.

[0044] The working principle of the utility model is as follows:

[0045] like Figure 1 , 2 As shown, the utility model discloses a quickly constructed theodolite target measurement device, which leads the center of the ground survey station out of the ground plane and onto a pointer 4 perpendicular to the ground for aiming of the theodolite. When the device is used, the outer cup 3 is placed on the ground survey station, so that the pointer tip of the pointer 4 in the outer cup 3 is aligned with the center of the survey station, and the opening of the outer cup 3 faces the direction of the theodolite installation. When the light is dim, the light on the top of the outer cup 4 can be used for supplementary lighting. The light source has its own battery and can be repeatedly charged without the need for an external power supply. When measuring elevation, remove the light source 6, tighten the prism 8 and the prism connector 7 assembly to the thread on the top of the needle clamp 5 for aiming of the theodolite.

[0046] The utility model discloses a fast-built theodolite target measurement device, which is small and light, and convenient for surveying and mapping personnel to carry when working outdoors. The device can significantly shorten the rear-view erection time, improve work efficiency, reduce the items that workers carry outdoors, reduce costs, and make the wire measurement task faster and more efficient.

[0047] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

[0048] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. A fast-built theodolite target measurement device, characterized in that: The invention comprises a support frame (1), a light-transmitting plate (2) and an outer cup (3) which are arranged in sequence from top to bottom, wherein the light-transmitting plate (2) is clamped between the support frame (1) and the outer cup (3), and the bottom edge of the support frame (1) and the top edge of the outer cup (3) are fixedly connected by a first fastener (9); the support frame (1) is provided with a first center hole (101), the light-transmitting plate (2) is provided with a second center hole (201), and the outer cup (3) is provided with a third center hole (301); the first center hole (101), the second center hole (201) and the third center hole (301) are connected to each other. 01), a needle holder (5) is arranged in the third center hole (301), the bottom of the needle holder (5) is fixedly connected to the pointer (4), the threaded hole at the top of the needle holder (5) passes through the second center hole (201) and is fixedly connected to the light-transmitting plate (2) by a second fastener (10), a light source (6) is arranged in the first center hole (101) of the support frame (1), a threaded hole matching the top of the needle holder (5) is arranged at the bottom of the light source (6), and the threaded hole of the light source (6) is fixedly connected to the thread at the top of the needle holder (5).

2. A fast-built theodolite target measurement device according to claim 1, characterized in that: The light source (6) can be replaced by a prism assembly, which comprises a prism connector (7), a prism holder (12) and a prism (8). The first center hole (101) of the support frame (1) is provided with a prism connector (7), the top of the prism connector (7) is connected to the prism holder (12), the prism holder (12) is provided with a prism (8), and the prism holder (12) is used to fix the prism (8). The bottom of the prism connector (7) is provided with a threaded hole that matches the top of the needle clamp (5). The threaded hole at the bottom of the prism connector (7) is fixedly connected to the thread at the top of the needle clamp (5), and the prism connector (7) is used to make the center line of the prism (8) coincide with the center line of the needle clamp (5).

3. The fast-built theodolite target measurement device according to claim 1, characterized in that: The first fastener (9) and the second fastener (10) are both screws.

4. The fast-built theodolite target measurement device according to claim 1, characterized in that: The top of the outer cup (3) is also provided with a U-shaped opening (11), and the outer cup (3) is in the shape of a round cup opening downward.

5. The fast-built theodolite target measurement device according to claim 1, characterized in that: The light-transmitting plate (2) is a transparent acrylic plate.

6. The fast-built theodolite target measurement device according to claim 1, characterized in that: The light source (6) is a lamp.

7. The fast-built theodolite target measurement device according to claim 1, characterized in that: The pointer (4) is connected to the needle clamp (5) via a nut at the bottom of the needle clamp (5).

8. The fast-built theodolite target measurement device according to claim 1, characterized in that: The overall shape of the support frame (1) and the outer cup (3) connected together is a frustum, and the bottom size of the support frame (1) is compatible with the top size of the outer cup (3).

9. The fast-built theodolite target measurement device according to claim 1, characterized in that: The support frame (1) is in the shape of a truncated cone, and a fourth center hole (102) is further provided in the support frame (1). The circular hole diameter of the fourth center hole (102) is larger than the circular hole diameter of the first center hole (101), and the fourth center hole (102) is arranged at the upper end of the first center hole (101) and is integrally formed with the first center hole (101).

10. The fast-built theodolite target measurement device according to claim 2, characterized in that: The prism connector (7) and the prism holder (12) are both provided with light holes, and the center lines of the light holes are on the same axis.

Images