A foldable surveying ruler

Abstract

The present invention relates to the technical field of surveying and mapping tools, specifically a foldable surveying ruler, comprising a first surveying ruler, a second surveying ruler, a connecting mechanism, a reinforcing mechanism and an adjusting mechanism; the first surveying ruler end is connected to a first connector; the second surveying ruler end is connected to a second connector with a mounting hole; the connecting mechanism is arranged on the second connector, one end of the connecting mechanism is fixedly connected to the first connector; the reinforcing mechanism is arranged on the second connector to strengthen the connection between the first connector and the second connector; the adjusting mechanism is arranged on the connecting mechanism, the other end of the adjusting mechanism is movably connected to the reinforcing mechanism. The first surveying ruler and the second surveying ruler are connected into a whole through the cooperation between the first connector, the second connector and the connecting mechanism, and it can be ensured that the first surveying ruler and the second surveying ruler are in the same straight line in the working state, providing the necessary conditions for accurate measurement of data.

Description

Technical Field

[0001] The invention relates to the technical field of surveying and mapping tools, and in particular to a foldable surveying and mapping ruler. Background Art

[0002] Surveying and mapping refers to the determination, collection and drawing of the shape, size, spatial position and attributes of natural geographical elements or artificial facilities on the surface. Surveying and mapping projects mainly study the basic knowledge and skills of surveying and mapping, spatial precision positioning and navigation, urban and engineering construction and surveying engineering, and measure various information such as space, landforms, geological structures, and draw them into topographic maps. In the process of surveying and mapping, it is often necessary to use a surveying ruler.

[0003] The Chinese patent with the announcement number CN209783442U discloses a foldable surveying ruler for architectural design, including a ruler plate, with scale lines and numbers engraved on the ruler plate, a step hole is provided on the end side of the ruler plate, a rotating shaft is inserted in the step hole, a limit ring is provided on the rotating shaft, a pressing ring is sleeved on the rotating shaft, and a soft ring is installed on the outer edge of one end of the pressing ring. The nut locks the external thread, the pressing ring presses the soft ring, and the inner end of the soft ring is in a pressing state to contact the inner bottom end of the step hole, which can effectively prevent external dust and impurities from entering the matching gap between the step hole and the rotating shaft. After a period of time, the soft ring is worn, and the nut is tightened continuously, so that the inner end of the soft ring presses against the inner end of the step hole again, maintaining the closure of the matching gap between the rotating shaft and the step hole, and the matching gap between the soft ring and the inner end of the step hole can be improved, which solves the problem that the matching gap will gradually increase over time when the rotating shaft is fixed by a riveted ring, and the matching gap cannot be improved.

[0004] However, the above technical solution has the following shortcomings: on the one hand, the folding is performed in an staggered manner, which causes the sections of the scale plate to be not on the same plane, making it inconvenient to measure and prone to errors; on the other hand, the hinges are connected by bolts and nuts. If the nuts are tightened too tight, it is easy to accelerate the wear of the parts. If the nuts are tightened too loosely, it is difficult to maintain the scale lines on the same straight line when the scale plate is unfolded, further increasing the difficulty and error of measurement. Summary of the invention

[0005] The purpose of the present invention is to provide a foldable surveying ruler in view of the problems existing in the background technology.

[0006] The technical solution of the present invention is a foldable surveying ruler, comprising:

[0007] A first surveying ruler, an end of which is connected to a first connector;

[0008] A second surveying ruler, the end of which is connected to a second connector with a mounting hole;

[0009] A connecting mechanism, which is used for connecting the first connecting head and the second connecting head, the connecting mechanism is arranged on the second connecting head, and one end of the connecting mechanism is fixedly connected to the first connecting head;

[0010] The connecting mechanism includes a first connecting component and a second connecting component; the first connecting component is arranged on the first connecting head, the second connecting component is arranged on the second connecting head, and one end of the first connecting component extends into the second connecting component and is mutually engaged with the second connecting component;

[0011] A reinforcing mechanism is disposed on the second connector and is used to strengthen the connection between the first connector and the second connector, and one end of the reinforcing mechanism is movably connected to the first connector;

[0012] The reinforcing mechanism includes an adjusting component and a clamping component; the adjusting component is arranged on the connecting mechanism, the clamping component is movably arranged in the second connecting head, one end of the clamping component is connected to the adjusting component, and the other end of the clamping component is movably connected to the first connecting head;

[0013] The adjusting mechanism is arranged on the connecting mechanism, one end of the adjusting mechanism is connected to the connecting mechanism, and the other end of the adjusting mechanism is movably connected to the reinforcing mechanism.

[0014] Preferably, the first connecting assembly includes a first connecting rod and a first clamping plate; one end of the first connecting rod is fixedly connected to the first connecting head, the other end of the first connecting rod passes through the second connecting head through the mounting hole and is rotatably connected to the second connecting head, and the first clamping plate is fixedly connected to the first connecting rod and is coaxially arranged with the first connecting rod.

[0015] Preferably, the second connecting assembly includes a mounting seat, a mounting cylinder, a second connecting rod and a second clamping plate; the mounting seat is fixedly connected to the second connecting head, a movable hole is formed through the mounting seat, the first clamping plate is located in the movable hole and is rotatably connected to the movable hole, the mounting cylinder is fixedly connected to the mounting seat and is coaxially arranged with the first connecting rod, the second connecting rod passes through the mounting cylinder and is slidably connected to the mounting cylinder, the second clamping plate is slidably arranged in the movable hole, the second clamping plate is fixedly connected to the second connecting rod, and the second clamping plate and the first clamping plate are clamped to each other.

[0016] Preferably, it also includes a return spring, and a plurality of return springs are provided, one end of the return spring is fixedly connected to the second clamping disk, and the other end of the return spring is fixedly connected to the top of the inner wall of the mounting tube.

[0017] Preferably, the clamping assembly includes a movable block and a clamping rod; a placement hole is opened through the mounting seat, the movable block is slidably set in the placement hole, one end of the clamping rod is fixedly connected to the movable block, the other end of the clamping rod passes through the second connecting head and is slidably connected to the second connecting head, and the first connecting head is provided with a clamping groove adapted to the clamping rod.

[0018] Preferably, the adjustment assembly includes an installation box and a pre-tensioning spring; the installation box is fixedly connected to the mounting seat, the movable block extends into the installation box and is slidably connected to the installation box, one end of the pre-tensioning spring is fixedly connected to the movable block, and the other end of the pre-tensioning spring is fixedly connected to the top of the inner wall of the installation box.

[0019] Preferably, it also includes an adjusting rod, one end of which is fixedly connected to the movable block, the other end of which passes through the installation box and extends to the outside of the installation box, and one end of the adjusting rod located outside the installation tube is fixedly connected to an adjusting pull ring.

[0020] Preferably, the adjustment mechanism includes an adjustment plate, a first adjustment block, a second adjustment block, a limit block and a reset assembly; the adjustment plate is slidably arranged on the mounting seat, the first adjustment block is connected to the end of the adjustment plate, the mounting box and the movable block are both penetrated with through holes, the first adjustment block penetrates the mounting box and the movable block through the through holes, the second adjustment block and the adjustment plate are arranged on the adjustment plate, the mounting tube and the second connecting rod are both penetrated with adjustment holes, the adjustment plate and the second adjustment block penetrate the mounting tube and the second connecting rod through the adjustment holes, the limit block is arranged on the adjustment plate, the limit block is arranged between the mounting tube and the mounting box, and the reset assembly is arranged between the adjustment plate and the mounting tube.

[0021] Preferably, the reset assembly includes a fixed plate and an adjusting spring; the fixed plate is fixedly connected to the adjusting plate, one end of the adjusting spring is fixedly connected to the fixed plate, and the other end of the adjusting spring is fixedly connected to the mounting tube.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects: the first surveying ruler and the second surveying ruler are connected into a whole through the cooperation between the first connector, the second connector and the connecting mechanism, and the first surveying ruler and the second surveying ruler are ensured to be on the same straight line in the working state, providing necessary conditions for accurate measurement of data. Through the setting of the first clamping plate and the second clamping plate, the angle between the first surveying ruler and the second surveying ruler can also be suspended and fixed at any angle, thereby increasing the applicable scope of the surveying ruler. Through the setting of the strengthening mechanism, when the surveying ruler is in the storage or working state, the clamping rod is inserted into the clamping groove on the surface of the first connector under the action of the preload spring, so as to further limit the position of the first connector and the second connector, improve the stability of the first connector and the second connector, and then ensure that the first surveying ruler and the second surveying ruler are on the same straight line in the surveying state, reducing the error caused by the measuring tool itself to the measurement data. Through the setting of the adjustment mechanism, the state of the strengthening mechanism and the connecting mechanism can be adjusted by changing the position of the adjustment plate, which greatly facilitates the conversion of the state of the first surveying ruler and the second surveying ruler. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A perspective view of an embodiment of the present invention when it is unfolded;

[0024] Figure 2 A three-dimensional diagram of an embodiment of the present invention when stored;

[0025] Figure 3 A cross-sectional view of a connection portion of an embodiment of the present invention;

[0026] Figure 4 A three-dimensional diagram of a second connecting component in an embodiment of the present invention;

[0027] Figure 5 A three-dimensional diagram of a reinforcing mechanism in an embodiment of the present invention;

[0028] Figure 6 A three-dimensional diagram of a first connecting component in an embodiment of the present invention;

[0029] Figure 7 A three-dimensional diagram of a second connector in an embodiment of the present invention;

[0030] Figure 8 A three-dimensional diagram of a mounting base in an embodiment of the present invention;

[0031] Fig. 9 A three-dimensional diagram of an adjusting mechanism in an embodiment of the present invention.

[0032] Reference numerals: 1, first surveying ruler; 2, second surveying ruler; 3, connecting mechanism; 31, first connecting assembly; 311, first connecting rod; 312, first clamping plate; 32, second connecting assembly; 321, mounting seat; 322, mounting cylinder; 323, second connecting rod; 324, second clamping plate; 325, movable hole; 326, reset spring; 4, strengthening mechanism; 41, adjusting assembly; 411, mounting box; 412, preload spring; 4 13. Adjustment rod; 414. Adjustment pull ring; 42. Snap-fit ​​assembly; 421. Movable block; 422. Snap-fit ​​rod; 423. Placement hole; 424. Snap-fit ​​groove; 5. Adjustment mechanism; 51. Adjustment plate; 52. First adjustment block; 53. Second adjustment block; 54. Limit block; 55. Reset assembly; 551. Fixed plate; 552. Adjustment spring; 56. Through hole; 57. Adjustment hole; 6. First connector; 7. Mounting hole; 8. Second connector. DETAILED DESCRIPTION

[0033] Embodiment 1, as Figure 1-9 As shown, a foldable surveying ruler proposed by the present invention comprises a first surveying ruler 1, a second surveying ruler 2, a connecting mechanism 3, a reinforcing mechanism 4 and an adjusting mechanism 5;

[0034] The end of the first surveying ruler 1 is connected to a first connector 6;

[0035] A second connector 8 with a mounting hole 7 is connected to the end of the second surveying ruler 2 , and scale lines and numbers are engraved on the surfaces of the first surveying ruler 1 and the second surveying ruler 2 .

[0036] The connecting mechanism 3 is used for connecting the first connecting head 6 and the second connecting head 8. The connecting mechanism 3 is arranged on the second connecting head 8, and one end of the connecting mechanism 3 is fixedly connected to the first connecting head 6;

[0037] The connecting mechanism 3 includes a first connecting component 31 and a second connecting component 32; the first connecting component 31 is arranged on the first connecting head 6, and the second connecting component 32 is arranged on the second connecting head 8. One end of the first connecting component 31 extends into the second connecting component 32 and is mutually engaged with the second connecting component 32.

[0038] The reinforcing mechanism 4 is arranged on the second connecting head 8 to strengthen the connection between the first connecting head 6 and the second connecting head 8, and one end of the reinforcing mechanism 4 is movably connected to the first connecting head 6;

[0039] The reinforcing mechanism 4 includes an adjusting component 41 and a clamping component 42; the adjusting component 41 is arranged on the connecting mechanism 3, the clamping component 42 is movably arranged in the second connecting head 8, one end of the clamping component 42 is connected to the adjusting component 41, and the other end of the clamping component 42 is movably connected to the first connecting head 6;

[0040] The adjusting mechanism 5 is arranged on the connecting mechanism 3 , one end of the adjusting mechanism 5 is connected to the connecting mechanism 3 , and the other end of the adjusting mechanism 5 is movably connected to the reinforcing mechanism 4 .

[0041] Embodiment 2, as Figure 3-8As shown, a foldable surveying ruler proposed by the present invention, compared with the first embodiment, this embodiment further specifically discloses the structure of the first connecting component 31 and the second connecting component 32; the first connecting component 31 includes a first connecting rod 311 and a first clamping disk 312; one end of the first connecting rod 311 is fixedly connected to the first connecting head 6, the other end of the first connecting rod 311 passes through the second connecting head 8 through the mounting hole 7 and is rotatably connected to the second connecting head 8, the first clamping disk 312 is fixedly connected to the first connecting rod 311 and is coaxially arranged with the first connecting rod 311; the second connecting component 32 includes a mounting seat 321, a mounting cylinder 322, a second connecting rod 323, a second clamping disk 324 and a reset spring 326; the mounting seat 321 and the second connecting head 8 is fixedly connected, the mounting seat 321 is penetrated by a movable hole 325, the first clamping plate 312 is located in the movable hole 325 and is rotatably connected to the movable hole 325, the mounting cylinder 322 is fixedly connected to the mounting seat 321 and is coaxially arranged with the first connecting rod 311, the second connecting rod 323 penetrates the mounting cylinder 322 and is slidably connected to the mounting cylinder 322, the second clamping plate 324 is slidably arranged in the movable hole 325, the second clamping plate 324 is fixedly connected to the second connecting rod 323, the second clamping plate 324 and the first clamping plate 312 are clamped with each other, a plurality of reset springs 326 are provided, one end of the reset spring 326 is fixedly connected to the second clamping plate 324, and the other end of the reset spring 326 is fixedly connected to the top of the inner wall of the mounting cylinder 322.

[0042] Embodiment three, as Figure 3-8 As shown, a foldable surveying ruler proposed by the present invention, compared with the second embodiment, this embodiment further specifically discloses the structure of the clamping assembly 42 and the adjustment assembly 41; the clamping assembly 42 includes a movable block 421 and a clamping rod 422; the mounting seat 321 is penetrated with a placement hole 423, the movable block 421 is slidably arranged in the placement hole 423, one end of the clamping rod 422 is fixedly connected to the movable block 421, and the other end of the clamping rod 422 penetrates the second connecting head 8 and is slidably connected to the second connecting head 8, the first connecting head 6 is provided with a clamping groove 424 adapted to the clamping rod 422, and the clamping groove 424 is provided with two and is located at the first surveying ruler 1 and the second surveying ruler 2 in the surveying and the corresponding position in the storage state; the adjustment component 41 includes an installation box 411, an adjustment rod 413 and a pre-tensioning spring 412; the installation box 411 is fixedly connected to the mounting seat 321, the movable block 421 extends into the installation box 411 and is slidably connected to the installation box 411, one end of the pre-tensioning spring 412 is fixedly connected to the movable block 421, the other end of the pre-tensioning spring 412 is fixedly connected to the top of the inner wall of the installation box 411, one end of the adjustment rod 413 is fixedly connected to the movable block 421, the other end of the adjustment rod 413 passes through the installation box 411 and extends to the outside of the installation box 411, and the end of the adjustment rod 413 located outside the installation cylinder 322 is fixedly connected with an adjustment pull ring 414.

[0043] Embodiment 4, as Figure 3-9 As shown, the foldable surveying ruler proposed by the present invention, compared with the third embodiment, this embodiment further specifically discloses the structure of the adjustment mechanism 5; the adjustment mechanism 5 includes an adjustment plate 51, a first adjustment block 52, a second adjustment block 53, a limit block 54 and a reset assembly 55; the adjustment plate 51 is slidably arranged on the mounting seat 321, the first adjustment block 52 is connected to the end of the adjustment plate 51, the installation box 411 and the movable block 421 are penetrated by a through hole 56, the first adjustment block 52 penetrates the installation box 411 and the movable block 421 through the through hole 56, the second adjustment block 53 and the adjustment plate 51 are arranged on the adjustment plate 51, and the installation cylinder 322 The second connecting rod 323 is penetrated by an adjustment hole 57, the adjustment plate 51 and the second adjustment block 53 pass through the mounting tube 322 and the second connecting rod 323 through the adjustment hole 57, the limit block 54 is arranged on the adjustment plate 51, the limit block 54 is arranged between the mounting tube 322 and the mounting box 411, the reset assembly 55 is arranged between the adjustment plate 51 and the mounting tube 322, the reset assembly 55 includes a fixed plate 551 and an adjustment spring 552; the fixed plate 551 is fixedly connected to the adjustment plate 51, one end of the adjustment spring 552 is fixedly connected to the fixed plate 551, and the other end of the adjustment spring 552 is fixedly connected to the mounting tube 322.

[0044] In summary, when it is necessary to unfold the first surveying ruler 1 and the second surveying ruler 2, the fixed plate 551 is pushed to compress the adjustment spring 552 and drive the adjustment plate 51 to move the adjustment block and the second adjustment block 53 together. The first adjustment block 52 is driven by the adjustment plate 51 to drive the movable block 421 to move upward through the through hole 56. The movable block 421 moves upward to drive the clamping rod 422 to move out of the clamping groove 424 of the first connecting head 6. The limit block 54 is clamped with the movable block 421 to prevent the adjustment spring 552 from rebounding and driving the adjustment plate 51 to reset. The second adjustment block 53 moves by inserting into the adjustment hole 57 of the second connecting rod 323 to drive the second connecting rod 323 to move. The second connecting rod 323 moves to drive the second clamping plate 324 to move and disengage from the first clamping plate 312, and the first surveying ruler 1 is rotated 1 80 degrees, pull the adjustment pull ring 414 to drive the movable block 421 to move through the adjustment rod 413, the movement of the movable block 421 loses its limiting effect on the limit block 54, the adjustment plate 51, the first adjustment block 52, the second adjustment block 53 and the fixed plate 551 are reset under the action of the adjustment spring 552, and after the second adjustment block 53 is reset, it loses its limiting effect on the second connecting rod 323, and the second clamping disk 324 is reset under the action of the reset spring 326 and fits with the first clamping disk 312 to fix the first connecting head 6 and the second connecting head 8, loosen the adjustment pull ring 414, the movable block 421 and the adjustment rod 413 are reset under the action of the preload spring 412, the movable block 421 is reset to drive the clamping rod 422 to be inserted into the clamping groove 424, further strengthening the fixation between the first connecting head 6 and the second connecting head 8.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A foldable surveying ruler, characterized in that: include: A first surveying ruler (1), an end of which is connected to a first connector (6); A second surveying ruler (2), the end of which is connected to a second connector (8) with a mounting hole (7); A connecting mechanism (3) used for connecting the first connecting head (6) and the second connecting head (8), the connecting mechanism (3) being arranged on the second connecting head (8), and one end of the connecting mechanism (3) being fixedly connected to the first connecting head (6); The connecting mechanism (3) comprises a first connecting component (31) and a second connecting component (32); the first connecting component (31) is arranged on the first connecting head (6), the second connecting component (32) is arranged on the second connecting head (8), and one end of the first connecting component (31) extends into the second connecting component (32) and is mutually engaged with the second connecting component (32); A reinforcing mechanism (4) disposed on the second connecting head (8) and used to strengthen the connection between the first connecting head (6) and the second connecting head (8), one end of the reinforcing mechanism (4) being movably connected to the first connecting head (6); The reinforcing mechanism (4) comprises an adjusting component (41) and a clamping component (42); the adjusting component (41) is arranged on the connecting mechanism (3), the clamping component (42) is movably arranged in the second connecting head (8), one end of the clamping component (42) is connected to the adjusting component (41), and the other end of the clamping component (42) is movably connected to the first connecting head (6); The adjusting mechanism (5) is arranged on the connecting mechanism (3), one end of the adjusting mechanism (5) is connected to the connecting mechanism (3), and the other end of the adjusting mechanism (5) is movably connected to the reinforcing mechanism (4).

2. A foldable surveying ruler according to claim 1, characterized in that: The first connection assembly (31) comprises a first connection rod (311) and a first clamping plate (312); one end of the first connection rod (311) is fixedly connected to the first connection head (6), the other end of the first connection rod (311) passes through the second connection head (8) through the mounting hole (7) and is rotatably connected to the second connection head (8), and the first clamping plate (312) is fixedly connected to the first connection rod (311) and is coaxially arranged with the first connection rod (311).

3. A foldable surveying ruler according to claim 2, characterized in that: The second connection assembly (32) comprises a mounting seat (321), a mounting cylinder (322), a second connecting rod (323) and a second clamping plate (324); the mounting seat (321) is fixedly connected to the second connector (8); a movable hole (325) is formed through the mounting seat (321); the first clamping plate (312) is located in the movable hole (325) and is rotatably connected to the movable hole (325); the mounting cylinder (322) is fixedly connected to the mounting seat (321) and is coaxially arranged with the first connecting rod (311); the second connecting rod (323) passes through the mounting cylinder (322) and is slidably connected to the mounting cylinder (322); the second clamping plate (324) is slidably arranged in the movable hole (325); the second clamping plate (324) is fixedly connected to the second connecting rod (323); and the second clamping plate (324) and the first clamping plate (312) are clamped to each other.

4. A foldable surveying ruler according to claim 3, characterized in that: It also includes a return spring (326), a plurality of return springs (326) are provided, one end of the return spring (326) is fixedly connected to the second clamping plate (324), and the other end of the return spring (326) is fixedly connected to the top of the inner wall of the installation cylinder (322).

5. The foldable surveying ruler according to claim 3, characterized in that: The clamping assembly (42) comprises a movable block (421) and a clamping rod (422); a placement hole (423) is formed through the mounting seat (321); the movable block (421) is slidably disposed in the placement hole (423); one end of the clamping rod (422) is fixedly connected to the movable block (421); the other end of the clamping rod (422) passes through the second connector (8) and is slidably connected to the second connector (8); and the first connector (6) is provided with a clamping groove (424) adapted to the clamping rod (422).

6. A foldable surveying ruler according to claim 5, characterized in that: The adjustment assembly (41) comprises a mounting box (411) and a preload spring (412); the mounting box (411) is fixedly connected to the mounting seat (321); the movable block (421) extends into the mounting box (411) and is slidably connected to the mounting box (411); one end of the preload spring (412) is fixedly connected to the movable block (421); and the other end of the preload spring (412) is fixedly connected to the top of the inner wall of the mounting box (411).

7. A foldable surveying ruler according to claim 6, characterized in that: It also includes an adjustment rod (413), one end of which is fixedly connected to the movable block (421), the other end of which passes through the installation box (411) and extends to the outside of the installation box (411), and one end of the adjustment rod (413) located outside the installation tube (322) is fixedly connected to an adjustment pull ring (414).

8. The foldable surveying ruler according to claim 6, characterized in that: The adjusting mechanism (5) comprises an adjusting plate (51), a first adjusting block (52), a second adjusting block (53), a limiting block (54) and a reset assembly (55); the adjusting plate (51) is slidably arranged on the mounting seat (321); the first adjusting block (52) is connected to an end of the adjusting plate (51); a through hole (56) is provided through the mounting box (411) and the movable block (421); the first adjusting block (52) passes through the mounting box (411) and the movable block (421) through the through hole (56); the second adjusting block (53) is connected to the adjusting plate (51); The section plate (51) is arranged on the adjustment plate (51); the mounting tube (322) and the second connecting rod (323) are both penetrated by adjustment holes (57); the adjustment plate (51) and the second adjustment block (53) penetrate the mounting tube (322) and the second connecting rod (323) through the adjustment holes (57); the limit block (54) is arranged on the adjustment plate (51); the limit block (54) is arranged between the mounting tube (322) and the mounting box (411); and the reset assembly (55) is arranged between the adjustment plate (51) and the mounting tube (322).

9. The foldable surveying ruler according to claim 8, characterized in that: The reset assembly (55) comprises a fixed plate (551) and an adjusting spring (552); the fixed plate (551) is fixedly connected to the adjusting plate (51), one end of the adjusting spring (552) is fixedly connected to the fixed plate (551), and the other end of the adjusting spring (552) is fixedly connected to the mounting tube (322).

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