Auxiliary ruler sleeve for inverted ruler leveling observation and use method thereof

Abstract

The present invention belongs to the technical field of leveling measurement, and in particular, relates to an auxiliary ruler sleeve for inverted ruler leveling observation and a method of use. The auxiliary ruler sleeve includes a fixed plate, a connecting frame, a ring, a strong magnet, a baffle, a screw, a handle, a clamping plate, a cushion and a spring. A connecting frame is installed on the upper side of the fixed plate, a ring is arranged at the middle position of the lower side of the connecting frame, a strong magnet is embedded in the middle position of the lower side of the fixed plate, baffles are symmetrically arranged on the left and right sides of the fixed plate, a screw is sleeved on any baffle, a handle is arranged at the outer end of the screw, a clamping plate is arranged at the inner end of the screw, a cushion is arranged at the end of the clamping plate that contacts the leveling ruler, and a spring is arranged on the outer surface of the screw. The present invention provides an auxiliary ruler sleeve for inverted ruler leveling observation with low labor intensity for workers and high observation accuracy and a method of use.

Description

Technical Field

[0001] The invention belongs to the technical field of leveling, and in particular relates to an auxiliary ruler sleeve for inverted ruler leveling observation and a use method thereof. Background Art

[0002] In the construction field, when observing the settlement of buildings or structures, the construction site is usually complex and restricted by various terrains and construction conditions. Sometimes, the observation point is set too high relative to the instrument station location, making it difficult to implement observations using conventional leveling methods.

[0003] The existing technical solution is as follows:

[0004] The level ruler is turned upside down for observation. The operating principle is the same as that of general leveling measurement. The level ruler is turned upside down with the bottom of the ruler close to the lower part of the observation point mark so that it is in a free hanging state to ensure that the level ruler is vertical.

[0005] However, using an inverted level rod only solves the problem of observation. The operator can only rely on his arms and body to stabilize the level rod, which can easily lead to fatigue. Stability and verticality are difficult to ensure, and the probability of measurement errors is increased to a certain extent, making it difficult to ensure the accuracy of the measurement results.

[0006] It can be seen that providing an auxiliary ruler sleeve for inverted ruler leveling observation with low labor intensity and high observation accuracy is an issue that urgently needs to be solved in this field. Summary of the invention

[0007] The main purpose of the present invention is to solve the problems existing in the prior art and to provide an auxiliary ruler sleeve for inverted ruler leveling observation with low labor intensity for workers and high observation accuracy and a use method thereof.

[0008] The technical problem solved by the present invention is achieved by adopting the following technical scheme: an auxiliary ruler sleeve for inverted ruler leveling observation, comprising a fixing plate, a connecting frame, a circular ring, a strong magnet, a baffle, a screw, a handle, a clamping plate, a cushion and a spring, wherein a connecting frame is installed on the upper side of the fixing plate, a circular ring is arranged at the middle position of the lower side of the connecting frame, a strong magnet is embedded in the middle position of the lower side of the fixing plate, baffles are symmetrically arranged on the left and right sides of the fixing plate, a screw is sleeved on any baffle, a handle is arranged at the outer end of the screw, a clamping plate is arranged at the inner end of the screw, a cushion is arranged at the end of the clamping plate that contacts the leveling ruler, and a spring is arranged on the outer surface of the screw;

[0009] The height of the ring is greater than or equal to one half of the diameter of the ring and less than or equal to three quarters of the diameter of the ring;

[0010] The shape of the clamp plate is circular, the shape of the strong magnet is circular, and the diameter of the strong magnet is greater than or equal to one third of the width of the fixed plate and less than or equal to two thirds of the width of the fixed plate;

[0011] The connecting frame is a door-shaped connecting frame;

[0012] The connecting frame, the fixing plate and the baffle are all made of hard alloy material.

[0013] A method for using the auxiliary ruler sleeve for inverted ruler leveling observation as described above comprises the following steps:

[0014] S1. Check whether the parts of the auxiliary ruler sleeve are firmly connected, whether the lower end face of the strong magnet is on the same plane as the lower end face of the fixed plate, and whether the handle rotates flexibly and reliably;

[0015] S2. Fit the level ruler between the baffles on both sides of the fixing plate, so that the top end face of the level ruler fits tightly with the lower end face of the strong magnet and the lower end face of the fixing plate. Rotate the handle to extend the spring so that the clamping plate at the inner end of the screw is fastened to the side of the level ruler. The soft pad on the clamping plate is close to the side of the level ruler, and the level ruler is fixed;

[0016] S3. Fit the circular ring on the lower side of the connecting frame onto the top of the settlement observation point so that the top of the settlement observation point and the lower end face of the top of the connecting frame are on the same plane. Add the correction constant K to the measured observation data. The correction constant K is the height between the lower end face of the top of the connecting frame and the lower end face of the fixed plate.

[0017] The beneficial effects of the present invention are:

[0018] 1. When the settlement observation point is higher than the level observation sight line, the level ruler is inverted and the auxiliary ruler sleeve is installed. The middle ring of the lower end face of the top of the connecting frame is sleeved on the settlement observation point. The level ruler is inverted to meet the height reached by the level observation sight line, which solves the problem that the observation point is too high and difficult to operate.

[0019] 2. The use of the auxiliary ruler set for the inverted ruler leveling observation has no effect on the station setting. The staff only needs to gently assist in stabilizing the leveling rod, making the measurement setting of the leveling rod more stable and reliable, thereby greatly reducing the labor intensity of the staff and improving the accuracy and work efficiency of the leveling observation.

[0020] 3. A strong magnet is set in the middle of the lower side of the fixing plate and a spring is set on the outer surface of the screw, which can ensure the close contact between the lower side of the fixing plate and the top surface of the leveling ruler, and also ensure the stability and reliability between the fixing plate and the leveling ruler. A clamping plate is set on the inner side of the screw, and a soft cushion is set on the end of the clamping plate that contacts the leveling ruler. The handle is rotated to extend the spring so that the clamping plate on the inner side of the screw is fastened to the side of the leveling ruler, ensuring the firm stability between the leveling ruler and the baffle and clamping plate, thereby improving the accuracy of leveling observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an auxiliary ruler sleeve for inverted ruler leveling observation according to the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of an auxiliary ruler sleeve for inverted ruler leveling observation from another angle of the present invention.

[0023] Figure 3 It is a schematic diagram of the assembly structure of the auxiliary ruler sleeve and the leveling rod for inverted leveling observation of the present invention.

[0024] Figure 4 It is a schematic diagram of the auxiliary ruler sleeve of the inverted ruler leveling observation of the present invention fitting the settlement observation point.

[0025] Figure 5 It is a schematic diagram of the auxiliary ruler sleeve observation using the inverted ruler leveling observation of the present invention.

[0026] In the figure:

[0027] 1. Fixed plate 2. Connecting frame 3. Ring

[0028] 4. Strong magnet 5. Baffle 6. Screw

[0029] 7. Handle 8. Clamp plate 9. Cushion

[0030] 10. Spring 11. Level rod 12. Settlement observation point

[0031] 13. Building wall 14. Level 15. Ground

[0032] 16. Level sight DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Figure 1 It is a structural schematic diagram of an auxiliary ruler sleeve for inverted ruler leveling observation according to the present invention.

[0037] Figure 2 This is a schematic diagram of the structure of an auxiliary ruler sleeve for inverted ruler leveling observation from another angle of the present invention.

[0038] Figure 3 It is a schematic diagram of the assembly structure of the auxiliary ruler sleeve and the leveling rod for inverted leveling observation of the present invention.

[0039] Figure 4 It is a schematic diagram of the auxiliary ruler sleeve of the inverted ruler leveling observation of the present invention fitting the settlement observation point.

[0040] Figure 5 It is a schematic diagram of the auxiliary ruler sleeve observation using the inverted ruler leveling observation of the present invention.

[0041] like Figures 1 to 5 As shown, the present invention provides an auxiliary ruler sleeve for inverted ruler leveling observation, comprising a fixed plate 1, a connecting frame 2, a ring 3, a strong magnet 4, a baffle plate 5, a screw 6, a handle 7, a clamping plate 8, a cushion 9 and a spring 10. The connecting frame 2 is installed on the upper side of the fixed plate 1, the ring 3 is arranged at the middle position of the lower side of the connecting frame 2, the strong magnet 4 is embedded in the middle position of the lower side of the fixed plate 1, the baffle plates 5 are symmetrically arranged on the left and right sides of the fixed plate 1, a screw 6 is sleeved on any baffle plate 5, a handle 7 is arranged at the outer end of the screw 6, a clamping plate 8 is arranged at the inner end of the screw 6, a cushion 9 is arranged at the end of the clamping plate 8 that contacts the leveling ruler 11, and a spring 10 is arranged on the outer surface of the screw 6.

[0042] The height of the ring 3 is greater than or equal to one-half of the diameter of the ring 3 and less than or equal to three-quarters of the diameter of the ring 3. The ring 3 is welded on the connecting frame 2, and the inner diameter of the ring 3 should be 5 mm larger than the diameter of the settlement observation point 12. The limitation of the inner diameter and height of the ring 3 not only ensures the stability of the settlement observation point 12 on the ring 3, prevents the auxiliary ruler sleeve from tilting, but also saves material costs as much as possible.

[0043] The shape of the clamp plate 8 is circular, the shape of the powerful magnet 4 is circular, and the diameter of the powerful magnet 4 is greater than or equal to one third of the width of the fixed plate 1 and less than or equal to two thirds of the width of the fixed plate 1. The circular clamp plate 8 makes the contact area large to ensure the fastening stability, the circular powerful magnet 4 makes the contact area large to ensure the adsorption stability, and the limitation of the diameter of the powerful magnet 4 can both ensure the adsorption strength of the powerful magnet 4 and save material costs as much as possible.

[0044] The connecting frame 2 is a gate-shaped connecting frame. The gate-shaped connecting frame 2 makes the verticality of the auxiliary ruler sleeve better and similar to the verticality of the leveling rod 11, thereby improving the accuracy of leveling observation.

[0045] The materials of the connecting frame 2, the fixing plate 1 and the baffle 5 are all made of hard alloy. Among them, the connecting frame 2, the fixing plate 1 and the baffle 5 are all made of the same hard alloy material with a small expansion coefficient, so there is no need to consider the influence of material expansion on the measurement accuracy. The hard alloy material has high hardness, wear resistance, strength and toughness, which ensures that the fixing plate 1 and the baffle 5 have high flatness.

[0046] When the handle 7 is rotated to clamp the leveling ruler 11, the spring 10 arranged on the outer surface of the screw 6 can enhance the fixing force between the clamp plate 8 and the baffle 5. A cushion 9 is arranged on the end of the clamp plate 8 that contacts the leveling ruler 11 to enhance the firmness of the leveling ruler 11.

[0047] like Figure 3 As shown, the leveling ruler 11 is fitted between the baffles 5 on both sides of the fixed plate 1, so that the top end face of the leveling ruler 11 is closely fitted to the lower end faces of the strong magnet 4 and the lower end faces of the fixed plate 1, and the strong magnet 4 is used to make the top of the leveling ruler 11 have good adsorption stability, and the handle 7 is rotated to extend the spring 10 to tighten the screw 6 for fine adjustment, so that the clamping plate 8 at the inner end of the screw 6 is fastened to the side of the leveling ruler 11, and the handle 7 is rotated to make the soft pad 9 on the clamping plate 8 close to the side of the leveling ruler 11, so as to fix the position of the leveling ruler 11, and the other side of the leveling ruler 11 is closely fitted to the corresponding baffle 5, and the leveling ruler 11 is fixed.

[0048] like Figure 4As shown, the ring 3 of the auxiliary ruler sleeve is hung on the settlement observation point 12, and the top surface of the settlement observation point 12 is fitted into the ring 3 and tightly combined with the lower end surface of the top of the connecting frame 2 to prevent the auxiliary ruler sleeve from sliding off the settlement observation point 12, which not only ensures the safety of the operation but also ensures stable and reliable observation accuracy.

[0049] like Figure 5 As shown, the leveling rod 11 equipped with the auxiliary ruler sleeve is hung on the settlement observation point 12 of the building wall 13 through the ring 3, and the level 14 is placed on the ground 15. The staff reads the observation data on the leveling rod 11 along the level line of sight 16 through the level 14. The read observation data needs to be added with a correction constant K. This correction constant K is the height between the lower end face of the top of the connecting frame 2 and the lower end face of the fixed plate 1, because the top of the settlement observation point 12 and the lower end face of the top of the connecting frame 2 are on the same plane, and the top end face of the leveling rod 11 and the lower end face of the fixed plate 1 are on the same plane, that is, the top of the settlement observation point 12 and the top end face of the leveling rod 11 are not on the same plane.

[0050] A method for using the auxiliary ruler sleeve for inverted ruler leveling observation as above comprises the following steps:

[0051] S1. Check whether the parts of the auxiliary ruler sleeve are firmly connected, whether the lower end surface of the strong magnet 4 is on the same plane as the lower end surface of the fixed plate 1, and whether the handle 7 rotates flexibly and reliably;

[0052] S2. Fit the leveling ruler 11 between the baffles 5 on both sides of the fixing plate 1, so that the top end surface of the leveling ruler 11 is closely fitted with the lower end surface of the strong magnet 4 and the lower end surface of the fixing plate 1, rotate the handle 7 to extend the spring 10 so that the inner end of the screw 6 and the clamping plate 8 are fastened to the side of the leveling ruler 11, and the soft pad 9 on the clamping plate 8 is close to the side of the leveling ruler 11, and the leveling ruler 11 is fixed;

[0053] S3. Fit the circular ring 3 on the lower side of the connecting frame 2 onto the top of the settlement observation point 12, so that the top of the settlement observation point 12 and the lower end face of the top of the connecting frame 2 are on the same plane, and add the correction constant K to the measured observation data. The correction constant K is the height between the lower end face of the top of the connecting frame 2 and the lower end face of the fixed plate 1.

[0054] Among them, the top of the settlement observation point 12 and the lower end face of the top of the connecting frame 2 are on the same plane, while the top end face of the level rod 11 and the lower end face of the fixed plate 1 are on the same plane, that is, the top of the settlement observation point 12 and the top end face of the level rod 11 are not on the same plane, so the measured observation data needs to be added with a correction constant K, and this correction constant K is the height between the lower end face of the top of the connecting frame 2 and the lower end face of the fixed plate 1. Therefore, when the auxiliary ruler sleeve of the inverted ruler leveling observation is completed, it is necessary to test it repeatedly, determine its correction constant K, correct the observation results, and obtain correct observation data.

[0055] The steps for determining the modified constant K are as follows:

[0056] Step 1: Take a fixed backsight direction (square ruler), select an observation point with a suitable height, use a square ruler to look forward, and read the Kiev scale four times respectively. The average value is the measurement reading of the observation point.

[0057] Step 2: Look forward again and use the auxiliary ruler set of this reversal level observation. Read the Kiev scale 4 times respectively and take the average value as the measurement reading of the observation point.

[0058] Step 3: Calculate the difference in the height difference observation values ​​of the same observation point based on the two readings of the vertical ruler. This difference is the corrected constant K.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary ruler set for inverted leveling observation, Features: It includes a fixing plate, a connecting frame, a ring, a strong magnet, a baffle, a screw, a handle, a clamping plate, a cushion and a spring. The fixing plate is provided with a connecting frame on the upper side, a ring is provided at the middle position of the lower side of the connecting frame, a strong magnet is embedded in the middle position of the lower side of the fixing plate, baffles are symmetrically provided on the left and right sides of the fixing plate, a screw is provided on any baffle plate, a handle is provided at the outer end of the screw, a clamping plate is provided at the inner end of the screw, a cushion is provided at the end of the clamping plate that contacts the leveling ruler, and a spring is provided on the outer surface of the screw; The height of the ring is greater than or equal to one half of the diameter of the ring and less than or equal to three quarters of the diameter of the ring; The shape of the clamp plate is circular, the shape of the strong magnet is circular, and the diameter of the strong magnet is greater than or equal to one third of the width of the fixed plate and less than or equal to two thirds of the width of the fixed plate; The connecting frame is a door-shaped connecting frame; The connecting frame, the fixing plate and the baffle are all made of hard alloy material.

2. A method for using the auxiliary ruler sleeve for inverted ruler leveling observation according to claim 1, Features: The following steps are involved: S1. Check whether the parts of the auxiliary ruler sleeve are firmly connected, whether the lower end face of the strong magnet is on the same plane as the lower end face of the fixed plate, and whether the handle rotates flexibly and reliably; S2. Fit the level ruler between the baffles on both sides of the fixing plate, so that the top end face of the level ruler fits tightly with the lower end face of the strong magnet and the lower end face of the fixing plate. Rotate the handle to extend the spring so that the clamping plate at the inner end of the screw is fastened to the side of the level ruler. The soft pad on the clamping plate is close to the side of the level ruler, and the level ruler is fixed; S3. Fit the circular ring on the lower side of the connecting frame onto the top of the settlement observation point so that the top of the settlement observation point and the lower end face of the top of the connecting frame are on the same plane. Add the correction constant K to the measured observation data. The correction constant K is the height between the lower end face of the top of the connecting frame and the lower end face of the fixed plate.

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