CN216813551U

CN216813551U - Levelling staff support

Info

Publication number: CN216813551U
Application number: CN202220318949.6U
Authority: CN
Inventors: 李小艳
Original assignee: Shanghai Pudong Housing Quality Inspection Co ltd
Current assignee: Shanghai Pudong Housing Quality Inspection Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-06-24
Anticipated expiration: 2032-02-17

Abstract

The utility model relates to a measure technical field, specifically be a levelling rod support, it includes support body and levelling rod, is provided with the fixture who is used for fixed levelling rod on the support body, fixture include with this body coupling's of support connecting portion, fixture still including being used for carrying out the clamping part of centre gripping to the levelling rod. This application has the effect that can improve levelling rod measurement accuracy.

Description

Levelling staff support

Technical Field

The application relates to the technical field of measurement, especially, relate to a levelling rod support.

Background

Levelling rods are instruments used for levelling, seismic deformation measurements, general engineering measurements or topographic measurements. During measurement, the level is placed at the middle position, and the leveling staff respectively position A, B points in front of and behind the level to serve as a front view ruler and a rear view ruler. The leveling instrument reads a on the rear view ruler and b on the front view ruler, and the height difference between the two points a and b is h_ab=a-b。

In the prior art, in precision leveling under various conditions, especially in line leveling, a staff usually holds a leveling staff from beginning to end, an observer operates a level gauge to read a scale marking numerical value of the leveling staff in a horizontal state, and the leveling staff is required to be always in a vertical stable state in an observation process so as to read out the precise numerical value.

Aiming at the related technologies, the inventor thinks that a ruler supporter is easy to fatigue in long-time supporting operation, the natural vibration of the body of the ruler supporter can cause poor stability of the leveling staff, and the accuracy of a measuring result is difficult to ensure by the operation mode of the manual ruler supporter.

SUMMERY OF THE UTILITY MODEL

In order to improve the accuracy that the levelling rod measured, this application provides a levelling rod support.

The application provides a levelling rod support adopts following technical scheme:

the utility model provides a levelling rod support, includes support body and levelling rod, be provided with the fixture who is used for fixed levelling rod on the support body, fixture includes the connecting portion of being connected with this body of support, fixture still carries out the clamping part of centre gripping including being used for the levelling rod.

Through adopting above-mentioned technical scheme, the user places the support body in ground, carries out automatic centre gripping to the levelling rod through fixture, has replaced the manual work to hold up the chi, has improved the measuring accuracy of levelling rod.

Optionally, the clamping part includes the centre gripping frame, the gliding has first tight board in top in the centre gripping frame, be provided with first spring between first tight board in top and the centre gripping frame, first spring one end and centre gripping frame rigid coupling, the first spring other end and the tight board rigid coupling in top, the clamping part still includes carries out the tight board in top second and the tight board in third top tight to the levelling rod lateral wall, the tight board in second top and the tight board in third top all slide with the centre gripping frame and be connected.

Through adopting above-mentioned technical scheme, the setting of first spring can be so that the tight board in first top more closely carry out the top tightly to the levelling rod, and the setting of the tight board in second top and the tight board in third top can be so that the levelling rod by more stable of centre gripping.

Optionally, a threaded hole is formed in the clamping frame, a second threaded hole is formed in the second tightening plate, the threaded hole is in threaded connection with a screw rod used for adjusting the position of the second tightening plate, and the end of the screw rod is rotatably connected with the second tightening plate.

Through adopting above-mentioned technical scheme, when the levelling rod width that uses is different, user's accessible adjusting screw for the tight board in second top pushes up the levelling rod tightly, can adapt to carry out the centre gripping to the levelling rod of different widths.

Optionally, a protruding block is arranged on the side wall of the second jacking plate, a sliding groove corresponding to the protruding block is formed in the clamping frame, and the second jacking plate is connected with the clamping frame in a sliding manner.

Through adopting above-mentioned technical scheme, the setting in lug and the groove that slides can make the second top tight board slide more stably.

Optionally, the clamping frame is internally clamped with an adjusting plate, a second spring is arranged between the adjusting plate and a third tightening plate, one end of the second spring is fixedly connected with the adjusting plate, the other end of the second spring is fixedly connected with the third tightening plate, and a plurality of adjusting grooves for the inserting connection of the adjusting plate are formed in the clamping frame.

Through adopting above-mentioned technical scheme, when the levelling rod thickness that uses is different, the user can insert the adjusting plate in the different adjustment tank for the tight board in third top is better pushes up the levelling rod tightly, can adapt to carry out the centre gripping to the levelling rod of different thickness.

Optionally, the side walls of the first jacking plate, the second jacking plate and the third jacking plate are provided with protective layers for reducing abrasion to the leveling staff.

Through adopting above-mentioned technical scheme, the setting up of protective layer can reduce the tight board in first top, the tight board in second top and the tight board in third top and directly contact with the levelling rod, leads to the surface of levelling rod to cause wearing and tearing, influences reading of numerical value.

Optionally, the connecting portion includes a clamping block, the clamping block is fixedly connected to the clamping frame, a clamping groove corresponding to the clamping block is formed in the bracket body, and the clamping block is clamped to the bracket body.

Through adopting above-mentioned technical scheme, when using the support, the user passes through the fixture block with the centre gripping frame and can dismantle with the support body and be connected, has made things convenient for user's assembly and dismantlement.

Optionally, the bracket body comprises a fixed block and a frame rod, one end of the frame rod is hinged to the fixed block, a clamp is arranged on the fixed block, and the frame rod is clamped with the clamp.

Through adopting above-mentioned technical scheme, the setting of clamp can prevent that the support from rotating at the in-process that uses, and the pin joint of hack lever and fixed block from taking place, causing the deviation of measured value.

Optionally, the rack rod comprises at least two adjusting rods and a fixing rod, the adjusting rods and the fixing rod are connected in sequence, adjacent adjusting rods and the adjusting rods are connected with the fixing rod through connecting sleeves, and the lower ends of the fixing rods are in a sharp-pointed shape.

Through adopting above-mentioned technical scheme, the user can be according to the length of the actual demand adjustment hack lever of use, and the setting of screw thread has made things convenient for the user to carry out the dismouting to the hack lever.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a user places the support body on the ground, and the leveling staff is automatically clamped through the clamping mechanism, so that the manual ruler holding is replaced, and the accuracy of leveling staff measurement is improved;

2. the arrangement of the protective layer can prevent the first tightening plate, the second tightening plate and the third tightening plate from directly contacting with the leveling staff, so that the outer surface of the leveling staff is abraded, and the reading of numerical values is influenced;

3. when the levelling staff width that uses is different, user's accessible adjusting screw for the tight board in second top carries out the top tightly to the levelling staff, can adapt to carry out the centre gripping to the levelling staff of different width.

Drawings

Fig. 1 is a schematic view of the overall construction of a levelling rod support.

Fig. 2 is an exploded view for embodying a configuration of the hack lever.

Fig. 3 is an exploded view of a clamp mechanism suitable for embodying the structure of the clamp mechanism.

FIG. 4 is a schematic view for showing the connection relationship between the second tightening plate and the clamping frame.

Description of the reference numerals: 1. a stent body; 11. a frame bar; 111. adjusting a rod; 112. fixing the rod; 113. connecting sleeves; 114. clamping a hoop; 12. a fixed block; 121. a card slot; 2. a leveling staff; 3. a clamping mechanism; 31. a clamping block; 32. a clamping frame; 33. a first tightening plate; 34. a first spring; 35. a second tightening plate; 36. a bump; 37. a chute; 38. a screw; 39. a third tightening plate; 310. a second spring; 4. a protective layer; 5. an adjustment plate; 6. and adjusting the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a levelling rod support.

Referring to fig. 1, a levelling rod support includes support body 1 and levelling rod 2, and support body 1 includes fixed block 12, all articulates on the three lateral wall of fixed block 12 perpendicular to lower terminal surface has hack lever 11, is provided with fixture 3 on the fixed block 12, and levelling rod 2 carries out the centre gripping through fixture 3.

Referring to fig. 1, the user firstly adjusts three hack levers 11 to be consistent, places the support body 1 on the ground, and clamps the leveling staff 2 through the clamping mechanism 3, automatically clamps the leveling staff 2, replaces the staff from beginning to end to support the leveling staff 2, and improves the accuracy of the leveling staff 2 in measurement.

Referring to fig. 2, the frame rod 11 includes an adjusting rod 111, a fixing rod 112 and a connecting sleeve 113, both ends of the adjusting rod 111 are provided with external threads, one end of the fixing rod 112 is provided with external threads, the other end of the fixing rod 112 is in a spine shape, an internal thread corresponding to the external threads is provided in the connecting sleeve 113, the adjusting rod 111 is provided with at least two, a user can adjust the number of the adjusting rods 111 according to the use requirement, the adjusting rods 111 and the fixing rod 112 are connected in sequence, and the adjacent adjusting rods 111 and the fixing rod 112 are all connected through the connecting sleeve 113 in a threaded manner. The side wall of the fixing block 12 is provided with a clamp 114, one end of the clamp 114 is provided with an external thread, the fixing block 12 is correspondingly provided with a threaded hole, the clamp 114 is in threaded connection with the fixing block 12, and the other end of the clamp 114 is clamped with the adjusting rod 111.

Referring to fig. 2, in the process of measuring using the leveling staff 2, the leveling staff 2 with a long length may be used, at this time, the length of the hack lever 11 needs to be lengthened, the user adjusts the overall length of the hack lever 11 by increasing the number of the adjusting levers 111, and the threaded connection mode also facilitates the disassembly and assembly of the user. Meanwhile, the clamp 114 can prevent the rack bar 11 from rotating during the use of the bracket body 1, which causes measurement errors.

Referring to fig. 3 and 4, fixture 3 includes clamping frame 32, clamping frame 32's cross-section is the U-shaped, one side of clamping frame 32 is the opening, clamping frame 32 keeps away from fixedly connected with fixture block 31 on the open-ended lateral wall, set up the draw-in groove 121 that corresponds fixture block 31 on the fixed block 12, clamping frame 32 and fixed block 12 looks joint, clamping frame 32 two inside walls of mutually perpendicular all slide and be connected with first puller plate 33, be provided with first spring 34 between first puller plate 33 and the clamping frame 32, the one end and the clamping frame 32 rigid coupling of first spring 34, the other end and the first puller plate 33 rigid coupling of first spring 34. Another inside wall of centre gripping frame 32 slides and is connected with the tight board 35 in second top, and the rigid coupling has lug 36 on the lateral wall of the tight board 35 in second top, sets up the spout 37 that corresponds lug 36 on the centre gripping frame 32, sets up threaded hole on the centre gripping frame 32, and threaded hole female connection has the screw rod 38 that is used for driving the tight board 35 in second top and slides, and the end and the tight board 35 rotation in second top of screw rod 38 are connected. The open end joint of centre gripping frame 32 has third top tight board 39, has seted up adjustment groove 6 on the centre gripping frame 32 inner wall, and cooperation adjustment groove 6 is provided with adjusting plate 5, and adjusting plate 5 and centre gripping frame 32 joint mutually is provided with second spring 310 between third top tight board 39 and the adjusting plate 5, and the one end and the third top tight board 39 rigid coupling of second spring 310, the other end and the adjusting plate 5 rigid coupling of second spring 310.

Refer to fig. 3, the user is when using fixture 3 to carry out the centre gripping to levelling rod 2, the realization is with the vertical placement of levelling rod 2 in centre gripping frame 32, two first tight boards 33 in top tightly to the both sides wall of levelling rod 2, adjusting screw 38 simultaneously, make the tight board 35 in second top tightly to another lateral wall top of levelling rod 2, finally, peg graft adjusting plate 5 in suitable adjustment tank 6 according to the thickness of levelling rod 2, this moment, third top tightly 39 carries out the butt to another lateral wall of levelling rod 2, four sides of levelling rod 2 all are supported tightly, stably the centre gripping is in fixture 3.

Referring to fig. 3, the protective layer 4 is fixedly connected to the side walls of the first tightening plate 33, the second tightening plate 35 and the third tightening plate 39 close to the leveling staff 2.

Referring to fig. 1 and 3, the protective layer 4 is provided to reduce wear on the surface of the levelling rod 2 and affect the reading during the tightening of the levelling rod 2 by the first 33, second 35 and third 39 tightening plates.

The embodiment of the application provides a principle of implementation of levelling staff support does: the user at first adjusts hack lever 11's length according to the user demand, the adjustment finishes the back, place support body 1 subaerially, pass through fixture block 31 and fixed block 12 looks joint with centre gripping frame 32 again, place the vertical opening of following centre gripping frame 32 one end of levelling rod 2 in centre gripping frame 32 afterwards, make two first tight boards 33 carry out the top to the both sides wall of levelling rod 2, rethread adjusting screw 38, make second tight board 35 carry out the top tightly to another lateral wall of levelling rod 2, peg graft in suitable adjustment tank 6 with adjusting plate 5 at last, make third tight board 39 carry out the top tightly to the lateral wall of levelling rod 2, realized the centre gripping to levelling rod 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A levelling rod support, characterized in that: comprises a bracket body (1) and a leveling staff (2), wherein the bracket body (1) is provided with a clamping mechanism (3) used for fixing the leveling staff (2), the clamping mechanism (3) comprises a connecting part connected with the bracket body (1), the clamping mechanism (3) further comprises a clamping part used for clamping the leveling staff (2), the clamping part comprises a clamping frame (32), a first tightening plate (33) slides in the clamping frame (32), a first spring (34) is arranged between the first tightening plate (33) and the clamping frame (32), one end of the first spring (34) is fixedly connected with the clamping frame (32), the other end of the first spring (34) is fixedly connected with the first tightening plate (33), the clamping part further comprises a second tightening plate (35) and a third tightening plate (39) which tightly tighten the side wall of the leveling staff (2), the second tightening plate (35) and the third tightening plate (39) are connected with the clamping frame (32) in a sliding mode.

2. A levelling rod support according to claim 1, in which: threaded holes are formed in the clamping frame (32), second threaded holes are formed in the second jacking plate (35), threaded holes are connected with screw rods (38) used for adjusting the positions of the second jacking plate (35) in a threaded mode, and the ends of the screw rods (38) are rotatably connected with the second jacking plate (35).

3. A levelling rod support according to claim 2, in which: be provided with lug (36) on the lateral wall of second puller plate (35), set up spout (37) that correspond lug (36) on centre gripping frame (32), second puller plate (35) and centre gripping frame (32) are connected that slides.

4. A levelling rod support according to claim 1, in which: clamping joint has adjusting plate (5) in centre gripping frame (32), be provided with second spring (310) between adjusting plate (5) and third top tight board (39), second spring (310) one end and adjusting plate (5) rigid coupling, second spring (310) other end and third top tight board (39) rigid coupling, set up a plurality of adjustment grooves (6) that supply adjusting plate (5) to peg graft in centre gripping frame (32).

5. A levelling rod support according to claim 4, in which: and protective layers (4) for reducing abrasion to the leveling staff (2) are arranged on the side walls of the first tightening plate (33), the second tightening plate (35) and the third tightening plate (39).

6. A levelling rod support according to claim 1, in which: the connecting part comprises a clamping block (31), the clamping block (31) is fixedly connected with a clamping frame (32), a clamping groove (121) corresponding to the clamping block (31) is formed in the bracket body (1), and the clamping block (31) is clamped with the bracket body (1).

7. A levelling rod support according to claim 1, in which: the support body (1) comprises a fixing block (12) and a frame rod (11), one end of the frame rod (11) is hinged to the fixing block (12), a hoop (114) is arranged on the fixing block (12), and the frame rod (11) is clamped with the hoop (114) in a mutually clamped mode.

8. A levelling rod support according to claim 7, in which: the rack rod (11) comprises at least two adjusting rods (111) and a fixing rod (112), the adjusting rods (111) and the fixing rod (112) are sequentially connected, adjacent adjusting rods (111) and adjusting rods (111) are connected with the fixing rod (112) through connecting sleeves (113), and the lower end of the fixing rod (112) is in a sharp-pointed shape.