Surveying and mapping ruler

Abstract

The utility model belongs to the technical field of surveying and mapping rulers, and particularly relates to a surveying and mapping ruler which comprises a surveying and mapping ruler body, a sliding groove is formed in the bottom end of the surveying and mapping ruler body, a sliding strip is installed on the inner wall of one side of the sliding groove, the sliding strip is embedded into one side of an extension ruler and is in sliding connection with the extension ruler, and the extension ruler is installed in the sliding groove in a sliding mode. A movable window is formed in the top end of one side of the sliding groove and penetrates through the surveying and mapping ruler body, a movable assembly is slidably connected into the movable window, the movable assembly is connected with second limiting clamping grooves, a plurality of second limiting clamping grooves are formed in the bottom ends of first sliding grooves at equal intervals, and the first sliding grooves are formed in the center of the upper portion of one end of an extension ruler; the movable assembly is connected with the movable window in a sliding mode, and the problem that a small circle cannot be drawn due to the fact that the minimum circle drawing radius is half of that of the surveying and mapping ruler body is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of surveying and mapping rulers, and in particular relates to a surveying and mapping ruler. Background Art

[0002] In the field of geological surveying and mapping, a surveying ruler is a tool used for surveying and mapping. Surveying rulers usually include two types: surveying rulers for drawing and surveying rulers for measuring. Among them, the surveying ruler for geological surveying and mapping is mainly used in the drawing process to complete size measurement, shape positioning and other operations to assist in mapping.

[0003] Announcement No. CN219674950U A surveying ruler for geological surveying, including a surveying component and a dual-purpose component, the surveying component including a surveying ruler body, a side ruler installed on one side of the surveying ruler body and a sealing cover installed at one end of the surveying ruler body, the dual-purpose component including a limit base installed on the top of the surveying ruler body, an externally embedded shaft installed on the inner side of the limit base, a driving gear installed at the bottom of the externally embedded shaft, a supporting threaded rod movably installed on the inner side of the externally embedded shaft, a driving top plate installed on the top of the supporting threaded rod and an extension ruler movably installed on the outer side of the driving gear. The utility model is equipped with an externally embedded shaft, a driving gear, a supporting threaded rod, an extension ruler and a surveying pen. The device has a simple structure and is easy to use. The embedded extension ruler further reduces the use space of the device, making it more convenient to carry and expanding the use function. There is no need to use other tools to draw a circle, which reduces the burden on the staff and improves the drawing efficiency.

[0004] The minimum circle radius of the new type is half of the main body of the surveying ruler, and it is not possible to draw a smaller circle. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a surveying ruler to solve the problem that the minimum circle drawing radius is half of the surveying ruler body and a smaller circle cannot be drawn.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a surveying ruler, comprising a surveying ruler body, a sliding groove is provided at the bottom end of the surveying ruler body, and a sliding bar is installed on the inner wall of one side of the sliding groove, the sliding bar is embedded in one side of the extension ruler and is slidably connected thereto, the extension ruler is slidably installed in the sliding groove, a movable window is provided at the top end of one side of the sliding groove penetrating the surveying ruler body, and a movable component is slidably connected in the movable window, the movable component is connected to a second limiting card slot, a plurality of the second limiting card slots are equidistantly provided at the bottom end of a first sliding slot, the first sliding slot is provided at the center above one end of the extension ruler, a second sliding slot is provided at the center of the other end of the extension ruler, and the movable component is slidably connected to the movable window.

[0007] The beneficial effects of the utility model are:

[0008] When the device is in use, its initial state is that the extension ruler is completely stored in the sliding groove. At this time, the movable component will be in the movable window. When it is necessary to draw a circle with a smaller diameter, the user can insert the index finger into the fingerboard to make the fingerboard pull the movable rod upward. At this time, the spring is in an elastic contraction state, and the card block slides into the telescopic cavity, and then the connecting seat 2 slides in the sliding groove 1, and the sliding seat slides in the movable window. When the movable component slides to a position with a suitable value, the fingerboard is released. At this time, the elastic potential energy of the spring makes the card block slide downward and fit into the limiting card groove 2 at a suitable position, completing the rear limit adjustment of the movable component position. After the adjustment is completed, the screw is rotated. At this time, the screw makes the slide plate slide downward in the active cavity. At this time, the slide plate drives the surveying and mapping pen to slide out of the through hole, and the circle can be drawn. The surveying and mapping pen is conveniently replaced by setting a threaded connection under the slide plate.

[0009] The set scale value 1 can facilitate the adjustment of the radius value of the circle drawn by the movable component with the fixed seat as the axis.

[0010] To increase the balance of the device when drawing a circle:

[0011] As a further improvement of the above technical solution: a weight block is installed inside one side of the bottom end of the surveying ruler body.

[0012] The beneficial effect of this improvement is that the setting of the weight block can increase the balance of the device when drawing a circle.

[0013] To limit and fix the extended ruler when it slides out:

[0014] As a further improvement of the above technical solution: a plurality of limit slots 1 are equidistantly provided on one side of the top of the extension ruler, and the limit slot 1 is engaged with one end of a connecting bolt, and the bolt passes through the surveying ruler body and is threadedly connected thereto.

[0015] The beneficial effect of this improvement is that after the extension ruler is pulled out from the sliding slot, the extension ruler can be limited and fixed by rotating the bolt so that one end of the bolt is engaged in a limit slot at a suitable position.

[0016] To draw a circle with a smaller diameter:

[0017] As a further improvement of the above technical solution: the movable component is composed of a connecting seat 1, a screw, a slide plate, a surveying pen, a card block, a sliding seat, a connecting seat 2, and a transparent plate. The connecting seat 2 is slidably installed in the sliding groove 1, and the connecting seat 2 is fixedly installed at the bottom end of the sliding seat. A transparent plate is fixedly installed on one side of the sliding seat, and one end of the transparent plate is fixedly connected to the top side of the connecting seat 1. A telescopic cavity is opened inside the connection between the sliding seat and the connecting seat 2, and a card block is slidably installed in the telescopic cavity. A movable rod is fixedly installed on the top of the card block, and the movable rod passes through the top of the sliding seat and is slidably connected thereto, and the bottom end of the card block passes through the connecting seat The bottom end of the connecting seat 2 is slidably connected with it, the bottom end of the blocking block is engaged with the limiting blocking slot 2, the top end of the movable rod is fixedly connected to the finger plate, the outer side of the movable rod is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the top inner wall of the telescopic cavity and the blocking block, the bottom end of the connecting seat 1 is provided with an active cavity, and the bottom end of the active cavity penetrates through the bottom end of the connecting seat 1 to provide a through hole, a surveying pen is slidably installed in the active cavity, the top end of the surveying pen is threadedly connected to the bottom of the slide, and the slide is slidably installed in the active cavity, the top end of the slide is rotatably connected to one end of the screw, and the other end of the screw penetrates through the top end of the connecting seat 1 and is threadedly connected to it.

[0018] The beneficial effect of the present improvement is as follows: when the present device is in use, its initial state is that the extension ruler is completely stored in the sliding groove. At this time, the movable component will be in the movable window. When it is necessary to draw a circle with a smaller diameter, the user can insert his index finger into the fingerboard to make the fingerboard pull the movable rod upward. At this time, the spring is in an elastic contraction state, and at the same time, the card block slides into the telescopic cavity, and then the connecting seat 2 slides in the sliding groove 1, and the sliding seat slides in the movable window. When the movable component slides to a position with a suitable value, the fingerboard is released. At this time, the elastic potential energy of the spring causes the card block to slide downward and fit into the limiting card groove 2 at a suitable position, completing the rear limit adjustment of the movable component position. After the adjustment is completed, the screw is rotated. At this time, the screw causes the slide plate to slide downward in the active cavity. At this time, the slide plate drives the surveying pen to slide out of the through hole, and the circle can be drawn. The surveying pen is conveniently replaced by setting a threaded connection to the bottom of the slide plate.

[0019] To start drawing the circle:

[0020] As a further improvement of the above technical solution: a fixing seat is fixedly installed at the center of the top of the surveying ruler body, a support rod is installed through the fixing seat, and a thread is provided on the outer side of the support rod, and the support rod is threadedly connected to the fixing seat, the bottom end of the support rod passes through the bottom end of the surveying ruler body and is slidably connected thereto, and the bottom end of the support rod is arranged in a pointed cone shape.

[0021] The beneficial effect of this improvement is that after the position adjustment of the movable component is completed, the user can rotate the support rod so that the bottom end of the support rod passes through the bottom end of the surveying ruler body, and its tip rests on the drawing paper. When the surveying pen is extended, the user pinches the fixed seat with the index finger and thumb, and rotates the device with the bottom end of the support rod as the axis to complete drawing a circle.

[0022] Adjustment of the radius of the circle drawn for axis observation:

[0023] As a further improvement of the above technical solution: one side of the top of the surveying ruler body is provided with scale value two, and the other side of the top of the surveying ruler body is provided with scale value one, so the top of the extension ruler is provided with scale value three.

[0024] The beneficial effect of this improvement is that the set scale value one can facilitate the adjustment of the radius value of the circle drawn by the movable component with the fixed seat as the axis.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the active components of the utility model;

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the surveying ruler body of the utility model;

[0030] In the figure: 1. Surveying ruler body; 2. Fixed seat; 3. Support rod; 4. Scale value one; 5. Scale value two; 6. Scale value three; 7. Extension ruler; 8. Bolt; 9. Limiting slot one; 10. Slide slot one; 11. Limiting slot two; 12. Movable component; 13. Slide slot two; 14. Movable window; 15. Weight block; 16. Connecting seat one; 17. Screw; 18. Slide plate; 19. Surveying pen; 20. Block; 21. Sliding seat; 22. Connecting seat two; 23. Transparent plate. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] like Figure 1-4As shown, a surveying ruler comprises a surveying ruler body 1, a sliding groove is provided at the bottom end of the surveying ruler body 1, and a sliding bar is installed on the inner wall of one side of the sliding groove, the sliding bar is embedded in one side of the extension ruler 7 and is slidably connected thereto, the extension ruler 7 is slidably installed in the sliding groove, a movable window 14 is provided at the top end of one side of the sliding groove penetrating through the surveying ruler body 1, and a movable component 12 is slidably connected in the movable window 14, the movable component 12 is connected to a limiting card slot 2 11, the limiting card slot 2 11 is equidistantly provided with a plurality of bottom ends of a sliding slot 10, the sliding slot 10 is provided at the center above one end of the extension ruler 7, a sliding slot 2 13 is provided at the center of the other end of the extension ruler 7, and the movable component 12 is slidably connected to the movable window 14.

[0033] A weight block 15 is installed inside one side of the bottom end of the surveying ruler body 1; the weight block 15 can increase the balance of the device when drawing a circle.

[0034] A plurality of limit slots 9 are equidistantly provided on one side of the top of the extension ruler 7, and one end of a connecting bolt 8 is engaged in the limit slot 9, and the bolt 8 passes through the surveying ruler body 1 and is threadedly connected thereto; after the extension ruler 7 is pulled out from the sliding groove, the bolt 8 is rotated to engage one end of the limit slot 9 at a suitable position to limit and fix the extended ruler 7 that has been slid out.

[0035] The movable assembly 12 is composed of a connecting seat 16, a screw 17, a slide plate 18, a mapping pen 19, a block 20, a sliding seat 21, a connecting seat 22, and a transparent plate 23. The connecting seat 22 is slidably mounted in the sliding groove 10, and the connecting seat 22 is fixedly mounted at the bottom end of the sliding seat 21. A transparent plate 23 is fixedly mounted on one side of the sliding seat 21, and one end of the transparent plate 23 is fixedly connected to the top side of the connecting seat 16. A telescopic cavity is opened inside the connection between the sliding seat 21 and the connecting seat 22, and a block 20 is slidably mounted in the telescopic cavity. The top of the block 20 is fixedly mounted. A movable rod is provided, the movable rod passes through the top of the sliding seat 21 and is slidably connected thereto, and the bottom end of the block 20 passes through the bottom end of the connecting seat 22 and is slidably connected thereto, the bottom end of the block 20 is engaged with the limiting card slot 2 11, the top of the movable rod is fixedly connected to the finger plate, the outer sleeve of the movable rod is provided with a spring, the two ends of the spring are respectively fixedly connected to the top inner wall of the telescopic cavity and the block 20, the bottom end of the connecting seat 16 is provided with an movable cavity, and the bottom end of the movable cavity passes through the bottom end of the connecting seat 16 to provide a through hole, a mapping pen 19 is slidably installed in the movable cavity, and the top of the mapping pen 19 The bottom of the slide plate 18 is threadedly connected, and the slide plate 18 is slidably installed in the movable cavity. The top end of the slide plate 18 is rotated to connect one end of the screw rod 17, and the other end of the screw rod 17 passes through the top of the connecting seat 16 and is threadedly connected thereto. When the device is in use, its initial state is that the extension ruler 7 is completely stored in the sliding groove. At this time, the movable component 12 will be in the movable window 14. When it is necessary to draw a circle with a smaller diameter, the user can insert the index finger into the finger plate to pull the movable rod upward. At this time, the spring is in an elastic contraction state, and the block 20 slides into the telescopic cavity, and then the connecting seat 22 is in the slide groove 10. The sliding seat 21 slides in the movable window 14. When the movable component 12 slides to a position with a suitable value, the finger plate is released. At this time, the elastic potential energy of the spring causes the card block 20 to slide downward and fit into the limit card slot 11 at a suitable position, completing the limit adjustment of the position of the movable component 12. After the adjustment is completed, by rotating the screw rod 17, the screw rod 17 causes the slide plate 18 to slide downward in the movable cavity. At this time, the slide plate 18 drives the surveying pen 19 to slide out of the through hole, and the circle can be drawn. The surveying pen 19 is threadedly connected to the bottom of the slide plate 18, so that the surveying pen 19 can be easily replaced.

[0036] A fixing seat 2 is fixedly installed at the center of the top of the surveying ruler body 1, a support rod 3 is installed through the fixing seat 2, and a thread is arranged on the outer side of the support rod 3, and the support rod 3 is threadedly connected to the fixing seat 2, the bottom end of the support rod 3 passes through the bottom end of the surveying ruler body 1 and is slidably connected thereto, and the bottom end of the support rod 3 is arranged in a pointed cone shape; when the position adjustment of the movable component 12 is completed, the user can rotate the support rod 3 so that the bottom end of the support rod 3 passes through the bottom end of the surveying ruler body 1, and the tip thereof rests on the drawing paper, and when the surveying pen 19 is extended, the fixing seat 2 is pinched by the index finger and thumb, and the device is rotated with the bottom end of the support rod 3 as the axis to complete drawing a circle.

[0037] A scale value 2 5 is set on one side of the top of the surveying ruler body 1, and a scale value 1 4 is set on the other side of the top of the surveying ruler body 1, and the top of the extension ruler 7 is therefore set with a scale value 3 6; the set scale value 1 4 can facilitate the movable component 12 to observe the adjustment of the radius value of the drawn circle with the fixed seat 2 as the axis.

[0038] The working principle and use process of the utility model are as follows: when the device is in use, its initial state is that the extension ruler 7 is completely stored in the sliding groove, at which time the movable component 12 will be in the movable window 14. When it is necessary to draw a circle with a smaller diameter, the user can insert the index finger into the fingerboard to make the fingerboard pull the movable rod upward. At this time, the spring is in an elastic contraction state, and at the same time the block 20 slides into the telescopic cavity, and then the connecting seat 22 slides in the sliding groove 10, and the sliding seat 21 slides in the movable window 14. When the movable component 12 slides to a position with a suitable value, the fingerboard is released. At this time, the elastic potential energy of the spring makes the block 20 slide downward and fit into the limiting groove 2 11 at a suitable position, completing the rear limit adjustment of the movable component 12. After the adjustment is completed, the screw 17 is rotated. At this time, the screw 17 makes the slide plate 18 in the movable position. The movable cavity slides downward, at this time the slide plate 18 drives the surveying pen 19 to slide out of the through hole, and the circle can be drawn. The surveying pen 19 is threadedly connected to the bottom of the slide plate 18, so that the surveying pen 19 can be easily replaced. When the position adjustment of the movable component 12 is completed, the user can rotate the support rod 3 so that the bottom end of the support rod 3 passes through the bottom end of the surveying ruler body 1, and the tip thereof is against the drawing paper. When the surveying pen 19 is extended, the user pinches the fixing seat 2 with the index finger and thumb, and rotates the device with the bottom end of the support rod 3 as the axis to complete the circle drawing. The set scale value -4 can facilitate the movable component 12 to observe the adjustment of the radius value of the drawn circle with the fixing seat 2 as the axis. After the extension ruler 7 is pulled out of the sliding groove, the bolt 8 is rotated to make one end of it fit into the limit slot -9 at the appropriate position to complete the limit fixation of the extended ruler 7 that has been slid out.

Claims

1. A surveying ruler, characterized in that: The invention comprises a surveying ruler body (1), a sliding groove is provided at the bottom end of the surveying ruler body (1), and a sliding bar is installed on the inner wall of one side of the sliding groove, the sliding bar is embedded in one side of an extension ruler (7) and is slidably connected thereto, the extension ruler (7) is slidably installed in the sliding groove, a movable window (14) is provided at the top end of one side of the sliding groove penetrating the surveying ruler body (1), and a movable component (12) is slidably connected in the movable window (14), the movable component (12) is connected to a second limiting card groove (11), the second limiting card groove (11) is provided with a plurality of equidistant bottom ends of a first sliding groove (10), the first sliding groove (10) is provided at the center above one end of the extension ruler (7), a second sliding groove (13) is provided at the center of the other end of the extension ruler (7), and the movable component (12) is slidably connected to the movable window (14).

2. A surveying ruler according to claim 1, characterized in that: A weight block (15) is installed inside one side of the bottom end of the surveying ruler body (1).

3. A surveying ruler according to claim 1, characterized in that: A plurality of limit slots (9) are equidistantly provided on one side of the top end of the extension ruler (7), and the limit slot (9) is engaged with one end of a connecting bolt (8), and the bolt (8) passes through the surveying ruler body (1) and is threadedly connected thereto.

4. A surveying ruler according to claim 1, characterized in that: The movable assembly (12) is composed of a connecting seat (16), a screw (17), a slide plate (18), a mapping pen (19), a clamping block (20), a sliding seat (21), a connecting seat (22), and a transparent plate (23). The connecting seat (22) is slidably mounted in the sliding groove (10). The connecting seat (22) is fixedly mounted at the bottom end of the sliding seat (21). A transparent plate (23) is fixedly mounted on one side of the sliding seat (21), and one end of the transparent plate (23) is fixedly connected to the top side of the connecting seat (16). A telescopic cavity is provided inside the connection between the sliding seat (21) and the connecting seat (22), and a clamping block (20) is slidably mounted in the telescopic cavity. A movable rod is fixedly mounted on the top end of the clamping block (20). The movable rod passes through the top end of the sliding seat (21) and is slidably connected thereto. The bottom end of the block (20) passes through the bottom end of the second connecting seat (22) and is slidably connected thereto; the bottom end of the block (20) is engaged with the second limiting slot (11); the top end of the movable rod is fixedly connected to the finger plate; a spring is sleeved on the outer side of the movable rod; the two ends of the spring are respectively fixedly connected to the top inner wall of the telescopic cavity and the block (20); the bottom end of the connecting seat (16) is provided with an active cavity, and the bottom end of the active cavity passes through the bottom end of the connecting seat (16) and is provided with a through hole; a surveying pen (19) is slidably installed in the active cavity; the top end of the surveying pen (19) is threadedly connected to the bottom of the slide plate (18), and the slide plate (18) is slidably installed in the active cavity; the top end of the slide plate (18) is rotatably connected to one end of the screw rod (17), and the other end of the screw rod (17) passes through the top end of the connecting seat (16) and is threadedly connected thereto.

5. A surveying ruler according to claim 1, characterized in that: A fixing seat (2) is fixedly installed at the center of the top of the surveying ruler body (1), a support rod (3) is installed through the fixing seat (2), and a thread is arranged on the outer side of the support rod (3), and the support rod (3) is threadedly connected to the fixing seat (2), the bottom end of the support rod (3) passes through the bottom end of the surveying ruler body (1) and is slidably connected thereto, and the bottom end of the support rod (3) is arranged in a pointed cone shape.

6. A surveying ruler according to claim 1, characterized in that: One side of the top of the surveying ruler body (1) is provided with a scale value two (5), and the other side of the top of the surveying ruler body (1) is provided with a scale value one (4), and the top of the extension ruler (7) is therefore provided with a scale value three (6).

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