Telescopic structure and total station
By designing a scalable structure and limiting and fine-tuning components, the problem of insufficient adjustment length of the total station bracket is solved, and the user needs and operation convenience is achieved to meet the needs of different heights.
Patent Information
- Application Number
- CN202420070765.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-11
AI Technical Summary
The existing total station bracket has limited adjustment length, which is inconvenient for users with higher heights.
A retractable structure is designed, including a fixing seat, a first bracket rod, a second bracket rod, a gear shaft and a gear, and the adjustable length of the bracket is achieved by meshing the gear with the limiting teeth, and ensured by the limiting assembly and the fine-tuning assembly. Fixing and fine adjustment of the bracket when in place.
Improves the versatility and operational convenience of the bracket, can adapt to users of different heights, and ensures stability and accuracy of the bracket in the right position through limiting and fine-tuning components.
Smart Images
Figure CN222255954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to total stations, in particular to a telescopic structure and a total station. Background Art
[0002] A total station is an instrument used to measure the plane and three-dimensional position coordinates and azimuth of various points on the ground. It combines the functions of theodolite, level and compass, and can achieve high-precision measurement and positioning. The total station has the functions of automatic target tracking, automatic data recording, remote control and data transmission, which greatly improves the efficiency and accuracy of measurement.
[0003] When in use, the total station usually needs to be installed on a stable bracket for observation. However, due to the different heights of users and the heights of the objects being measured, the height of the total station bracket needs to be adjusted. Most of the existing bracket adjustments have limited adjustment lengths, which is inconvenient for some taller people to operate. Therefore, the utility model proposes a retractable structure and a total station to solve the above problem. Utility Model Content
[0004] The purpose of the utility model is to provide a telescopic structure and a total station to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a retractable structure, the retractable structure comprising:
[0006] A fixing seat, wherein the fixing seat is provided with a mounting groove;
[0007] A first support rod, the first support rod is hinged in the mounting groove and has a mounting cavity disposed therein;
[0008] A second support rod, the second support rod is installed in the installation cavity of the first support rod, and one side of the second support rod is fixedly connected with a limiting tooth;
[0009] A gear shaft, the gear shaft being fixedly connected to a side wall of the mounting cavity of the first bracket rod;
[0010] The gear is rotatably connected to the outer surface of the gear shaft, and the gear is meshed with the limiting tooth.
[0011] Preferably, a slide groove is provided on the inner surface of the installation cavity of the first bracket rod, and a guide block is fixedly connected to a smooth side of the second bracket rod, and the guide block is embedded in the slide groove.
[0012] Preferably, a first through hole is formed on the side wall of the first bracket rod installation cavity, and a limit position component is movably arranged in the first through hole.
[0013] Preferably, the limit assembly consists of a limit tooth block, a pull rod, a return spring, a first baffle plate, and a second baffle plate. A second through hole that is coaxial with the first through hole and has the same size as the first through hole is provided on the first baffle plate. The right side of the first baffle plate is fixedly connected to the inner wall of the first bracket rod. The pull rod is movably connected in the first through hole and the second through hole, and one end extending into the first bracket rod is fixedly connected to the limit tooth block. The return spring is sleeved on the outer surface of the pull rod, and one end is fixedly connected to the right outer surface of the limit tooth block, and the other end is fixedly connected to the left outer surface of the first baffle plate. The second baffle plate is fixedly connected to the pull rod.
[0014] Preferably, a limiting groove is provided on the outer surface of the first bracket rod, the limiting groove is perpendicular to the first through hole, and the second baffle is embedded in the limiting groove.
[0015] Preferably, a handle is fixedly connected to the outer surface of the second bracket.
[0016] Preferably, a threaded hole is formed on the top of the fixing seat, and third through holes are formed on both sides of the threaded hole, and a fine-tuning component is disposed on the top of the fixing seat.
[0017] Preferably, the fine-tuning assembly consists of a guide rod, a placing table, a threaded rod, and a turning handle. The placing table is placed on the top of the fixed seat, the threaded rod is fixedly connected to the bottom center of the placing table and is threadedly connected to the threaded hole, the guide rod is fixedly connected to the bottom of the placing table and is symmetrically installed on both sides of the threaded rod, the guide rod passes through a third through hole, and the turning handle is fixedly connected to the bottom of the threaded rod.
[0018] A total station has the above-mentioned telescopic structure.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] 1. A retractable structure composed of a fixed seat, a first support rod, a second support rod, a gear shaft and a gear combination is provided, and a limiting tooth is fixedly connected to one side of the second support rod, and the gear shaft is fixed to the inner wall of the first support rod, and the gear is rotatably connected to the gear shaft, and the gear is meshed with the limiting tooth, so that the second support rod can be pulled out of the first support rod, and the pulling length can be adjusted at will, thereby improving the versatility of the support;
[0021] 2. By setting the limit assembly to consist of a limit tooth block, a pull rod, a return spring, a first baffle plate, and a second baffle plate, it is achieved that when the second bracket rod is stretched to an appropriate length, under the action of the return spring, the limit tooth block can engage with the gear to limit the rotation of the gear, thereby fixing the position of the second bracket rod and playing a locking role. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the structure of the utility model;
[0023] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;
[0024] Figure 3 is a cross-sectional view of a first bracket rod;
[0025] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;
[0026] Figure 5 It is a schematic diagram of the overall shape;
[0027] Figure 6 Schematic diagram of the fine-tuning component structure;
[0028] Figure 7 It is a schematic diagram of the limit component structure.
[0029] In the figure: a fixed seat 1, a first bracket rod 2, a second bracket rod 3, a limit tooth 4, a gear 5, a gear shaft 6, a limit assembly 7, a slide groove 8, a guide block 9, a limit groove 10, a guide rod 11, a placement table 12, a threaded rod 13, a turning handle 14, a handle 15, a limit tooth block 71, a pull rod 72, a return spring 73, a first baffle 74, and a second baffle 75. DETAILED DESCRIPTION
[0030] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] See also Figure 1-7 , the utility model provides the following four preferred embodiments: Embodiment 1
[0032] A telescopic structure, the telescopic structure includes a fixed seat 1, a first support rod 2, a second support rod 3, a gear 5 and a gear shaft 6. The fixed seat 1 is provided with a mounting groove, the first support rod 2 is hinged in the mounting groove, and a mounting cavity is arranged inside, a slide groove 8 is provided on the inner surface of the mounting cavity of the first support rod 2, a smooth side of the second support rod 3 is fixedly connected with a guide block 9, the guide block 9 is embedded in the slide groove 8, the second support rod 3 is installed in the mounting cavity of the first support rod 2, and one side is fixedly connected with a limiting tooth 4, the gear shaft 6 is fixedly connected to the side wall of the mounting cavity of the first support rod 2, the gear 5 is rotatably connected to the outer surface of the gear shaft 6, and the gear 5 is meshed with the limiting tooth 4, and a handle 15 is fixedly connected to the outer surface of the second support 3. By setting the slide groove 8 and the guide block 9, the second support rod 3 can move along the direction of the slide groove 8 when sliding, and the handle 15 is convenient for the user to pull the second support rod 3. Embodiment 2
[0033] On the basis of embodiment 1, a first through hole is provided on the side wall of the mounting cavity of the first bracket rod 2, and a limit assembly 7 is movably arranged in the first through hole. The limit assembly 7 consists of a limit tooth block 71, a pull rod 72, a return spring 73, a first baffle 74, and a second baffle 75. A second through hole coaxial with the first through hole and having the same size as the first through hole is provided on the first baffle 74. The right side of the first baffle 74 is fixedly connected to the inner wall of the first bracket rod 2. The pull rod 72 is movably connected in the first through hole and the second through hole, and one end extending into the first bracket rod 2 is fixedly connected to the limit tooth block 71. The return spring 73 is sleeved on the outer surface of the pull rod 72, and one end is fixedly connected to the right outer surface of the limit tooth block 71, and the other end is fixedly connected to the left outer surface of the first baffle 74. The second baffle 75 is fixedly connected to the pull rod 72.
[0034] A limiting groove 10 is provided on the outer surface of the first bracket rod 2, and the limiting groove 10 is perpendicular to the first through hole, and the second baffle 75 is embedded in the limiting groove 10. By setting a limiting tooth block 71, a pull rod 72, a reset spring 73, a first baffle 74, and a second baffle 75, after the second bracket rod 3 is pulled to a suitable position, the limiting tooth block 71 engages with the gear 5, and the second baffle 75 is embedded in the limiting groove 10. At this time, the gear 5 can be limited to prevent it from continuing to rotate. Embodiment 3
[0035] On the basis of the second embodiment, a threaded hole is opened at the top of the fixing seat 1, and third through holes are opened on both sides of the threaded hole. A fine-tuning component is arranged on the top of the fixing seat 1, and the fine-tuning component consists of a guide rod 11, a placement table 12, a threaded rod 13, and a turning handle 14. The placement table 12 is placed on the top of the fixing seat 1, and the threaded rod 13 is fixedly connected to the bottom center of the placement table 12 and is threadedly connected to the threaded hole. The guide rod 11 is fixedly connected to the bottom of the placement table 12 and is symmetrically installed on both sides of the threaded rod 13. The guide rod 11 passes through the third through hole, and the turning handle 14 is fixedly connected to the bottom of the threaded rod 13. By setting the fine-tuning component, after the second bracket rod 3 is stretched to an appropriate length, when the height of the bracket needs to be adjusted, the height of the placement table 12 can be adjusted by the fine-tuning component for easy use. Embodiment 4
[0036] On the basis of the third embodiment, a total station is provided, wherein the total station has the above-mentioned telescopic structure.
[0037] Working principle: In actual use, the operator first moves the bracket to the specified position, then one person holds the fixed seat 1 and pulls the pull rod 72 to pull out the limit tooth block 71 and separate it from the gear 5, and the other person pulls the handle 15, and under the action of the gear 5 and the limit tooth 4, the second bracket rod 3 is pulled out, and then the pull rod 72 is released. Under the elastic action of the reset spring 73, the limit tooth block 71 bounces back to the position on the left side of the gear 5 and engages with it. The second baffle 75 is now embedded in the limit groove 10. If the height needs to be finely adjusted, the handle 14 can be turned to drive the threaded rod 13 to rotate and fine-tune the placement table 12.
[0038] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.
Claims
1. A retractable structure, characterized in that: The retractable structure comprises: A fixing seat (1), wherein the fixing seat (1) is provided with a mounting groove; A first support rod (2), the first support rod (2) being hinged in the mounting groove and having a mounting cavity arranged therein; A second support rod (3), the second support rod (3) being mounted in the mounting cavity of the first support rod (2) and having one side fixedly connected to a limiting tooth (4); A gear shaft (6), the gear shaft (6) being fixedly connected to a side wall of the mounting cavity of the first bracket rod (2); A gear (5) is rotatably connected to the outer surface of the gear shaft (6), and the gear (5) is meshed with the limiting tooth (4).
2. A retractable structure according to claim 1, characterized in that: A slide groove (8) is provided on the inner surface of the mounting cavity of the first support rod (2), and a guide block (9) is fixedly connected to a smooth surface of the second support rod (3), wherein the guide block (9) is embedded in the slide groove (8).
3. A retractable structure according to claim 2, characterized in that: A first through hole is provided on the side wall of the first support rod (2) installation cavity, and a limit position component (7) is movably arranged in the first through hole.
4. A retractable structure according to claim 3, characterized in that: The limit assembly (7) comprises a limit tooth block (71), a pull rod (72), a return spring (73), a first baffle (74), and a second baffle (75). The first baffle (74) is provided with a second through hole coaxial with the first through hole and having the same size as the first through hole. The right side of the first baffle (74) is fixedly connected to the inner wall of the first bracket rod (2). The pull rod (72) is movably connected in the first through hole and the second through hole, and one end extending into the first bracket rod (2) is fixedly connected to the limit tooth block (71). The return spring (73) is sleeved on the outer surface of the pull rod (72), and one end is fixedly connected to the right outer surface of the limit tooth block (71), and the other end is fixedly connected to the left outer surface of the first baffle (74). The second baffle (75) is fixedly connected to the pull rod (72).
5. A retractable structure according to claim 4, characterized in that: A limiting groove (10) is provided on the outer surface of the first bracket rod (2), the limiting groove (10) is perpendicular to the first through hole, and the second baffle (75) is embedded in the limiting groove (10).
6. A retractable structure according to claim 5, characterized in that: A handle (15) is fixedly connected to the outer surface of the second bracket rod (3).
7. A retractable structure according to claim 6, characterized in that: A threaded hole is provided on the top of the fixing seat (1), and third through holes are provided on both sides of the threaded hole. A fine-tuning component is provided on the top of the fixing seat (1).
8. A retractable structure according to claim 7, characterized in that: The fine-tuning assembly comprises a guide rod (11), a placement platform (12), a threaded rod (13), and a rotating handle (14); the placement platform (12) is placed on the top of the fixing seat (1); the threaded rod (13) is fixedly connected to the bottom center of the placement platform (12) and is threadedly connected to the threaded hole; the guide rod (11) is fixedly connected to the bottom of the placement platform (12) and is symmetrically mounted on both sides of the threaded rod (13); the guide rod (11) passes through a third through hole; and the rotating handle (14) is fixedly connected to the bottom of the threaded rod (13).
9. A total station, characterized in that: The total station has any one of the telescopic structures described in claims 1-8.