Measuring device for highway construction

Abstract

The utility model belongs to the technical field of highway construction, and particularly relates to a measuring device for highway construction, which comprises a base, the top of the base is connected with a stand column, the surface of the base is threadedly connected with four screw rods in a penetrating manner, and the bottom end of each screw rod is rotatably connected with an insertion rod through a bearing; a telescopic column is inserted into one end of the stand column in a penetrating mode, an instrument connecting base is arranged at one end of the telescopic column, a measuring instrument is installed at the top of the instrument connecting base, a fixing plate is fixedly connected to the outer wall of the stand column, and a threaded rod penetrates through the surface of the fixing plate. The threaded connection block in threaded connection with the outer wall can drive the telescopic column to extend upwards along the guide rod, and the height of the measuring instrument at the top end of the telescopic column can be adjusted along with the upward extension of the telescopic column, so that compared with a mode of manually lifting or lowering the measuring instrument, the adjusting of the measuring instrument can be realized more conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway construction, and in particular relates to a measuring device for highway construction. Background Art

[0002] With the vigorous development of transportation, the number of high-grade highways, mainly expressways and first-class highways, has increased year by year. my country's highway industry has begun to enter a new stage with the construction of high-grade highways as the focus. High-grade highways should pay special attention to the design of the line shape, maintain the continuity of the line shape, and make passengers feel safe and comfortable physically and psychologically. When roads and bridges are under construction, workers are required to use levels to measure the height of the parts under construction.

[0003] Existing measuring devices for highway construction, such as patent number: CN211547227U, a measuring device for highway construction, including a base, the four corners of the bottom of the base are movably connected to rollers through connecting pieces, the surface of the base is fixedly connected to a threaded rod, the top of the base is fixedly connected to a fixed sleeve, the bottom of the threaded rod is provided with a movable groove, the bottom of the threaded rod is threadedly connected to a threaded sleeve, the movable rod is movably connected to the inside of the movable groove, the bottom of the threaded sleeve is fixedly connected to a connecting plate, and the bottom of the movable rod is fixedly connected to a support rod;

[0004] Although this patent can adjust the height of the instrument by screwing the screws into the limit slots at different positions, during use, tools are usually required to screw the screws. After the screws are unscrewed, the staff needs to manually lift or lower the instrument to the appropriate position, and then screw the screws into the corresponding limit slots to complete the adjustment, so the operation is very inconvenient. Utility Model Content

[0005] The utility model aims to provide a measuring device for highway construction, aiming to solve the problem that the existing measuring devices for highway construction usually need to use tools to tighten the screws during use, and after the screws are unscrewed, the staff need to manually raise or lower the instrument to a suitable position, and then screw the screws into the corresponding limit grooves to complete the adjustment, so the operation is very inconvenient.

[0006] To achieve the above object, the utility model provides the following technical solution: a measuring device for highway construction, comprising a base, a column connected to the top of the base, four screw rods connected to the surface of the base through threads, and the bottom end of each screw rod is rotatably connected to a plug rod through a bearing, a telescopic column is inserted through one end of the column, and an instrument connection seat is provided at one end of the telescopic column;

[0007] A measuring instrument is installed on the top of the instrument connecting seat, a fixing plate is fixedly connected to the outer wall of the column, a threaded rod passes through the surface of the fixing plate, a threaded connecting block is threadedly connected to the outer wall of the threaded rod, and a guide rod is connected between the base and the fixing plate.

[0008] As a preferred embodiment of the measuring device for highway construction of the utility model, one end of the threaded rod forms a rotation connection structure with the base through a bearing.

[0009] As a preferred embodiment of the measuring device for highway construction of the utility model, one end of the threaded connection block is sleeved on the outer wall of the guide rod.

[0010] As a preferred measurement device for highway construction of the utility model, an opening is provided on the outer wall of the column, and one end of the telescopic column is connected to the threaded connection block through the opening on the outer wall of the column.

[0011] As a preferred measuring device for highway construction of the utility model, the bottom of the instrument connecting seat is fixedly connected with an insertion block, the outer wall of the insertion block is provided with a slot, one end of the telescopic column is provided with a slot, the outer wall of the telescopic column is connected with a mounting seat, one end of the mounting seat is penetrated by a pull rod, one end of the pull rod is connected with a movable block, one end of the movable block is connected with a bayonet pin, and the outer wall of the pull rod is sleeved with a spring.

[0012] As a preferred embodiment of the measuring device for highway construction of the utility model, one end of the bayonet is inserted through the interior of the slot.

[0013] As a preferred measurement device for highway construction of the utility model, the instrument connecting seat can form an elastic engaging structure with the telescopic column through an insert block, a card slot, a slot, a mounting seat, a pull rod, a movable block, a card pin and a spring.

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

[0015] By rotating the threaded rod clockwise through the adjusting disk, the threaded connection block threadedly connected to its outer wall can drive the telescopic column to extend upward along the guide rod. As the telescopic column extends upward, the height of the measuring instrument on its top can be adjusted. Compared with the method of manually raising or lowering the measuring instrument, the measuring instrument can be adjusted more conveniently.

[0016] The movable block drives the latch pin to disengage from the slot by pulling the pull rod, and then the instrument connection base is pulled upward to disengage the plug block at the bottom from the slot, so that the instrument connection base can be disassembled for subsequent storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0021] Figure 4 It is a schematic diagram of the A enlarged structure of the utility model.

[0022] In the figure: 1. base; 2. column; 3. telescopic column; 4. instrument connecting seat; 5. measuring instrument; 6. fixing plate; 7. threaded rod; 8. threaded connecting block; 9. guide rod; 10. plug-in block; 11. slot; 12. slot; 13. mounting seat; 14. pull rod; 15. movable block; 16. latch; 17. spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] See also Figure 1-4 The utility model provides the following technical solutions: a measuring device for highway construction, comprising a base 1, a column 2 is connected to the top of the base 1, four screw rods are connected through the surface of the base by threads, and the bottom end of each screw rod is rotatably connected to a plug rod through a bearing, a telescopic column 3 is inserted through one end of the column 2, and an instrument connection seat 4 is provided at one end of the telescopic column 3;

[0025] It should be noted that four screw rods are threaded through the surface of the base 1, and one end of the screw rod is connected to a plug rod through a bearing;

[0026] It is more important to note that the rods at the bottom of the base 1 can be raised and lowered by rotating the screw rod, so that when facing different road surfaces, the four rods can be adjusted by the screw rod to keep the measuring instrument 5 in a horizontal state;

[0027] A measuring instrument 5 is installed on the top of the instrument connection seat 4, wherein the model of the measuring instrument 5 is: digital precision level XT290, a fixing plate 6 is fixedly connected to the outer wall of the column 2, a threaded rod 7 penetrates the surface of the fixing plate 6, a threaded connection block 8 is threadedly connected to the outer wall of the threaded rod 7, and a guide rod 9 is connected between the base 1 and the fixing plate 6;

[0028] It should be noted that one end of the threaded rod 7 is connected to an adjusting disk, and the threaded rod 7 can be driven to rotate by the adjusting disk.

[0029] Preferably: one end of the threaded rod 7 forms a rotating connection structure with the base 1 through a bearing, one end of the threaded connection block 8 is sleeved on the outer wall of the guide rod 9, an opening is opened on the outer wall of the column 2, and one end of the telescopic column 3 is connected to the threaded connection block 8 through the opening on the outer wall of the column 2.

[0030] When in use, the threaded rod 7 is rotated clockwise by the adjusting disk, so that the threaded connection block 8 threadedly connected to the outer wall can drive the telescopic column 3 to extend upward along the guide rod 9, and as the telescopic column 3 extends upward, the height of the measuring instrument 5 at its top can be adjusted;

[0031] On the contrary, by rotating the threaded rod 7, the threaded connection block 8 threadedly connected to its outer wall can drive the telescopic column 3 to retract into the column 2 along the guide rod 9, and as the telescopic column 3 continues to retract, the height of the measuring instrument 5 on its top can be lowered.

[0032] Preferably: an insert block 10 is fixedly connected to the bottom of the instrument connection seat 4, a card slot 11 is provided on the outer wall of the insert block 10, a slot 12 is provided on one end of the telescopic column 3, a mounting seat 13 is connected to the outer wall of the telescopic column 3, a pull rod 14 is inserted through one end of the mounting seat 13, a movable block 15 is connected to one end of the pull rod 14, a bayonet 16 is connected to one end of the movable block 15, a spring 17 is sleeved on the outer wall of the pull rod 14, one end of the bayonet 16 is inserted through the inside of the slot 12, and the instrument connection seat 4 can form an elastic snap-fit ​​structure with the telescopic column 3 through the insert block 10, the card slot 11, the slot 12, the mounting seat 13, the pull rod 14, the movable block 15, the bayonet 16, and the spring 17;

[0033] It is worth noting that the sizes of the insert block 10 and the slot 12 are matched.

[0034] When in use, the movable block 15 drives the latch 16 to disengage from the latch slot 11 by pulling the pull rod 14, and then the plug block 10 at the bottom of the instrument connection base 4 is disengaged from the slot 12 by pulling the instrument connection base 4 upward, so that the instrument connection base 4 can be disassembled;

[0035] It should be noted that when the instrument connecting seat 4 needs to be assembled, the movable block 15 is pulled to drive the pin 16 to retract, and then the pull rod 14 is released after the plug block 10 at the bottom of the instrument connecting seat 4 is inserted into the slot 12. At this time, the pin 16 will be inserted into the slot 11 under the action of the movable block 15 and the spring 17, and the installation and fixation of the instrument connecting seat 4 can be completed.

[0036] Working principle: First, move the measuring device to the measuring point, and then use the measuring instrument 5 to measure the highway. When it is necessary to raise the height of the measuring instrument 5, turn the threaded rod 7 clockwise through the adjusting dial so that the threaded connection block 8 threadedly connected to its outer wall can drive the telescopic column 3 to extend upward along the guide rod 9, and as the telescopic column 3 extends upward, the height of the measuring instrument 5 at its top can be adjusted. On the contrary, by rotating the threaded rod 7, the threaded connection block 8 threadedly connected to its outer wall can drive the telescopic column 3 to retract into the column 2 along the guide rod 9, and as the telescopic column 3 continues to retract, the height of the measuring instrument 5 at its top can be lowered. Finally, by pulling the pull rod 14, the movable block 15 drives the pin 16 to disengage from the slot 11, and then by pulling the instrument connecting seat 4 upward, the plug block 10 at the bottom is disengaged from the slot 12, so that the instrument connecting seat 4 can be disassembled for subsequent storage.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A measuring device for highway construction, comprising a base (1), characterized in that: The top of the base (1) is connected to a column (2), the surface of the base (1) is threaded with four screw rods, and the bottom end of each screw rod is rotatably connected to an insertion rod through a bearing, one end of the column (2) is inserted through a telescopic column (3), and one end of the telescopic column (3) is provided with an instrument connection seat (4); A measuring instrument (5) is installed on the top of the instrument connection seat (4); a fixing plate (6) is fixedly connected to the outer wall of the column (2); a threaded rod (7) passes through the surface of the fixing plate (6); a threaded connection block (8) is threadedly connected to the outer wall of the threaded rod (7); and a guide rod (9) is connected between the base (1) and the fixing plate (6).

2. A measuring device for highway construction according to claim 1, characterized in that: One end of the threaded rod (7) forms a rotationally connected structure with the base (1) via a bearing.

3. A measuring device for highway construction according to claim 1, characterized in that: One end of the threaded connection block (8) is sleeved on the outer wall of the guide rod (9).

4. A measuring device for highway construction according to claim 1, characterized in that: The outer wall of the column (2) is provided with an opening, and one end of the telescopic column (3) is connected to a threaded connection block (8) through the opening on the outer wall of the column (2).

5. A measuring device for highway construction according to claim 1, characterized in that: The bottom of the instrument connection seat (4) is fixedly connected with an insert block (10), the outer wall of the insert block (10) is provided with a slot (11), one end of the telescopic column (3) is provided with a slot (12), the outer wall of the telescopic column (3) is connected with a mounting seat (13), one end of the mounting seat (13) is penetrated by a pull rod (14), one end of the pull rod (14) is connected with a movable block (15), one end of the movable block (15) is connected with a latch (16), and the outer wall of the pull rod (14) is sleeved with a spring (17).

6. A measuring device for highway construction according to claim 5, characterized in that: One end of the latch (16) is inserted into the slot (12).

7. A measuring device for highway construction according to claim 5, characterized in that: The instrument connection seat (4) can form an elastic locking structure with the telescopic column (3) through the insert block (10), the card slot (11), the slot (12), the mounting seat (13), the pull rod (14), the movable block (15), the card pin (16) and the spring (17).

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