A telescopic support for a building level

Abstract

The utility model relates to the technical field of building engineering, disclose a telescopic building horizontal measuring instrument support, include: stand, the bottom fixed limit block of stand, and the top of stand is equipped with the connecting cover, the connecting cover is located the upper surface of stand, and the bottom of connecting cover is fixed with the top of stand, U -shaped frame is four -corner U -shaped, upside -down place is above connecting cover, and four corners with connecting cover top fixed. Through the up-and-down sliding of sliding block along the stand, can drive three groups of connecting frame transmission simultaneously, realize the quick unfolding and shrinkage of support frame. Telescopic link helps button and spring cooperation, simplifies operation and promotes the efficiency of assembly and storage. Threaded rod can realize the fine adjustment of the vertical height of measuring instrument through knob, adapts to different measuring height. Three telescopic links can independently adjust the length of extension, combined with the multi -angle rotation of support frame, can quickly adapt to uneven terrain.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a retractable support for a building level measuring instrument. Background Technology

[0002] In the field of construction engineering technology, a level is a core piece of equipment for ensuring construction accuracy, and the support bracket, as a supporting device for the level, directly affects measurement efficiency and data accuracy. Currently, most mainstream construction level brackets on the market are based on traditional structural designs. A search reveals that existing technology (such as application number: CN202320123456.7) discloses a construction level bracket, which mainly includes a fixed column, two symmetrically arranged support frames, and a top plate for placing the level. The support frames are connected to the positioning holes on the side wall of the column with bolts to achieve angle fixation, and the telescopic structure adopts a nested design of outer and inner tubes, with the telescopic length locked by through bolts. While this type of bracket can meet the basic support requirements and solve the problem of "no fixed support" for the level, improving the convenience of measurement operations to some extent, it still has several key shortcomings in actual construction scenarios, as follows: The existing support frame angle adjustment requires first disassembling the connecting bolts, manually adjusting the support frame to the target angle, then realigning it with the positioning holes on the column sidewall and tightening the bolts. This process is cumbersome, and the fixed spacing of the positioning holes prevents continuous fine-tuning of the angle. When facing uneven terrain such as slopes or potholes, it is difficult to quickly find a stable support angle. Furthermore, the telescopic structure relies on a single set of through bolts for locking. Adjustment requires completely unscrewing the bolts, adjusting the inner tube extension length, and then retightening them. This not only limits the adjustment range and makes it difficult to accurately adapt to different measurement heights, but repeated bolt disassembly and removal also easily leads to thread wear, shortening the support frame's lifespan. In addition, most existing support frames are designed with two sets of support frames, requiring separate folding for storage. They cannot be retracted simultaneously, occupying a large space and hindering on-site handling and storage. Based on the aforementioned shortcomings of existing technologies, this utility model proposes a retractable support for a construction level measuring instrument. Through optimized structural design, it specifically addresses core issues such as operational efficiency, terrain adaptability, support stability, and measurement accuracy, thereby meeting the needs for efficient and precise measurement in construction scenarios. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a retractable support for a building level measuring instrument.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a retractable building level measuring instrument bracket, comprising: a column, a limit block fixed at the bottom of the column, and a connecting cover installed at the top of the column; a connecting cover located on the column, with the bottom of the connecting cover fixed to the top of the column; and a U-shaped frame, which is U-shaped at four corners, placed upside down on the connecting cover, with the four corners fixed to the top of the connecting cover.

[0005] As a further description of the above technical solution: The U-shaped frame is also equipped with a threaded rod, which passes through the top of the U-shaped frame and is threadedly connected. A knob is installed at the bottom of the threaded rod, and the measuring instrument can be connected to the threaded rod through the bottom bolt.

[0006] As a further description of the above technical solution: The connecting cover is provided with: three sets of fixing pins, which are evenly fixed to the bottom of the connecting cover, and a support frame is connected inside the fixing pin; the support frame has one end rotatably connected to the fixing pin through a pin shaft, and the other end has a cylindrical hole at the bottom.

[0007] As a further description of the above technical solution: There are several sets of cylindrical holes that run horizontally through the support frame.

[0008] As a further description of the above technical solution: The support frame is provided with a fixing sleeve, which is fixed to the lower part of the middle of the support frame, and a connecting frame is provided at one end of the fixing sleeve.

[0009] As a further description of the above technical solution: One end of the connecting frame is rotatably connected to the fixed sleeve via a pin, and the other end is rotatably connected to the sliding block via a pin; the sliding block is sleeved on the outside of the column and can slide on the column.

[0010] As a further description of the above technical solution: The support frame is also equipped with: a telescopic rod, which is slidably connected to the bottom of the support frame, and a button is provided at the top of the telescopic rod, and an anti-slip pad is installed at the bottom of the telescopic rod; a button, which is slidably connected to a slot opened at the top of the telescopic rod, and the button can slide in a cylindrical hole; and a spring, which is set inside the button, with one end of the spring fixed to the inner wall of the button and the other end fixed to the slot at the top of the telescopic rod.

[0011] This utility model has the following beneficial effects: 1. High ease of operation and wide applicability. The sliding block moves up and down along the column, simultaneously driving the three connecting frames to quickly extend and retract the support frame without individual adjustments. The telescopic rod, with the help of a button and spring, can be unlocked by pressing and locked into the cylindrical hole by releasing. Adjustment of a single set takes only a few seconds, significantly simplifying operation and improving assembly and storage efficiency. The threaded rod allows for precise adjustment of the measuring instrument's vertical height via a knob, adapting to different measuring heights. The three telescopic rods can be independently adjusted in extension length, and combined with the multi-angle rotation of the support frame, they can quickly adapt to uneven terrain (such as slopes and potholes), ensuring stable use in various scenarios such as residential buildings, municipal engineering, and bridge construction. 2. Strong support stability and guaranteed measurement accuracy. The column, combined with a U-shaped frame and support frame, is fixed by welding, resulting in a strong load-bearing capacity for the core frame. The fixing pin and the three sets of support frames form a triangular support structure, significantly improving the overall anti-tipping ability of the support and preventing the impact of structural swaying on accuracy during measurement. The square rubber anti-slip pads at the bottom of the telescopic rods increase friction with the ground, preventing the support from sliding during measurement. By independently adjusting the extension length of the three sets of telescopic rods, the level of the measuring instrument can be quickly calibrated. Combined with the height fine adjustment of the threaded rod, the accuracy of the measurement data is further ensured, reducing measurement errors caused by support tilt. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall appearance of a retractable building level measuring instrument support proposed in this utility model. Figure 2 An exploded view of the overall structure of a retractable building leveling instrument support proposed in this utility model; Figure 3 This is a cross-sectional view of the button proposed in this utility model.

[0013] Legend: 1. Column; 100. Limiting block; 2. Connecting cover; 3. U-shaped frame; 4. Threaded rod; 5. Fixing pin; 6. Support frame; 61. Cylindrical hole; 62. Fixing sleeve; 63. Connecting frame; 64. Sliding block; 7. Telescopic rod; 71. Button; 72. Spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0017] like Figures 1 to 3 As shown in the figure, the retractable building level measuring instrument bracket provided in this embodiment includes: a column 1, a limit block 100 fixed at the bottom of the column 1, and a connecting cover 2 installed at the top of the column 1; the connecting cover 2 is located on the column 1, and the bottom of the connecting cover 2 is fixed to the top of the column 1; and a U-shaped frame 3, which is U-shaped at four corners, is placed upside down on the connecting cover 2, and the four corners are fixed to the top of the connecting cover 2.

[0018] In this embodiment, the telescopic rod 7 constitutes a telescopic support for a building level measuring instrument according to this application.

[0019] It should also be noted that the retractable building level support in this application can be a general-purpose support, a heavy-duty load-bearing support, a portable folding support, etc. Figure 1 In this embodiment, a retractable building level measuring instrument bracket is used as an example of a general-purpose bracket. Of course, other types of retractable building level measuring instrument brackets can also adopt similar structures, which will not be described in detail below.

[0020] Understandable Figure 1 This illustration only shows some components of a retractable architectural level support; the actual shape, size, location, and construction of these components are not affected by the actual shape, size, location, or construction. Figure 1 Due to limitations, a retractable support frame for a building level can also include, compared to... Figure 1 More or fewer parts.

[0021] In addition, column 1 is a cylindrical metal tube; the diameter of the limiting block 100 is slightly larger than the outer diameter of column 1, and it is fixed to the bottom of column 1 by welding; the connecting cover 2 is a metal cover, made of the same material as column 1, and is fixed to the top of column 1 by welding; the U-shaped frame 3 is a four-corner U-shaped steel structure, and in the inverted state, the four corners are evenly fixed to the top edge of the connecting cover 2 by welding. Column 1, as the main body of the support, bears the vertical force, the connecting cover 2 realizes the fixed connection between column 1 and U-shaped frame 3, and U-shaped frame 3 provides the top mounting foundation for the measuring instrument. This constitutes the core support frame of the support, ensuring the stability of the connection of each component and providing a structural foundation for the subsequent installation of the measuring instrument and the extension and retraction adjustment of the support.

[0022] Specifically, the U-shaped frame 3 is also provided with a threaded rod 4, which passes through the top of the U-shaped frame 3 and is threadedly connected to it. A knob is installed at the bottom of the threaded rod 4, and the measuring instrument can be connected to the threaded rod 4 through the bottom bolt.

[0023] In this embodiment, the threaded rod 4 is made of metal, and the bottom knob is made of plastic, which is fixed to the bottom of the threaded rod 4 by welding. The bottom of the measuring instrument has a pre-drilled threaded hole matching the threaded rod 4, with the hole diameter matching the diameter of the threaded rod 4. The threaded rod 4 passes through the top of the U-shaped frame 3 and is connected by threads. Rotating the bottom knob can drive the threaded rod 4 to rise and fall vertically. The measuring instrument is fixed to the bracket by a bottom bolt threaded to the top of the threaded rod 4. This allows for detachable fixing of the measuring instrument to the bracket, and the vertical height of the measuring instrument can be adjusted by raising and lowering the threaded rod 4 to adapt to different measurement height requirements.

[0024] Specifically, the connecting cover 2 is provided with: three sets of fixing pins 5, which are evenly fixed to the bottom of the connecting cover 2, and a support frame 6 is connected inside the fixing pin 5; the support frame 6 has one end rotatably connected to the fixing pin 5 through a pin shaft, and the other end has a cylindrical hole 61 at the bottom.

[0025] In a preferred embodiment, the fixing pins 5 are metal pins, and three sets of fixing pins 5 are evenly distributed at the bottom of the connecting cover 2 with the center of the connecting cover 2 as the center, and are fixed by welding; the support frame 6 is a cylindrical metal rod, the same material as the column 1, one end of which is rotatably connected to the fixing pins 5 by a pin shaft, and the other end has a cylindrical hole 61 along its length. The support frame 6 rotates around the fixing pins 5 as the axis of rotation, adjusting the angle between it and the column 1; the cylindrical hole 61 provides a positioning base for subsequent adjustment of the telescopic rod. Through the multi-angle rotation of the three sets of support frames 6, it can adapt to the support needs of different terrains, and the three evenly distributed structures improve the overall stability of the support. Example

[0026] Based on Embodiment 1, a connecting frame 63 is provided on the support frame 6 to facilitate the retraction of the support frame 6; Specifically, there are several sets of cylindrical holes 61 that horizontally penetrate the support frame 6.

[0027] In this embodiment, each support frame 6 has several cylindrical holes 61 evenly distributed along its length and horizontally penetrating it. The cylindrical holes 61 cooperate with buttons on the telescopic rod; by engaging the buttons in different positions of the cylindrical holes 61, the extension length of the telescopic rod is positioned. This provides multiple telescopic positioning options to meet the fine-tuning needs of the support height under different terrains, improving the adaptability of the support to uneven ground.

[0028] Specifically, the support frame 6 is provided with a fixing sleeve 62, which is fixed to the lower part of the middle of the support frame 6, and a connecting frame 63 is provided at one end of the fixing sleeve 62.

[0029] In this configuration, the fixed sleeve 62 is a circular metal sleeve with an inner diameter matching the width of the support frame 6, and is fixed to the lower center of the support frame 6 by welding. The connecting frame 63 is a cylindrical metal rod made of the same material as the support frame 6, with one end connected to the fixed sleeve 62 via a rotating pin. The fixed sleeve 62 is fitted onto the outside of the support frame 6 and fixed, providing a connection fulcrum for the connecting frame 63, which can rotate around the fixed sleeve 62. This achieves a stable connection between the connecting frame 63 and the support frame 6, and also provides a transmission basis for the subsequent sliding block to drive the support frame to unfold or retract through the rotating structure. Example

[0030] Based on embodiment 2, in order to enable the support to better adapt to different terrains, a telescopic rod 7 is provided at the bottom of the support frame 6; Specifically, one end of the connecting frame 63 is rotatably connected to the fixed sleeve 62 via a pin, and the other end is rotatably connected to the sliding block 64 via a pin; the sliding block 64 is sleeved on the outside of the column 1 and can slide on the column 1.

[0031] The other end of the connecting frame 63 is rotatably connected to the sliding block 64 via a pin. The sliding block 64 is a circular metal sleeve that fits around the outside of the column 1 and can slide up and down along the axis of the column 1. Sliding the sliding block 64 up and down along the column 1 causes both ends of the connecting frame 63 to rotate around the fixed sleeve 62 and the sliding block 64 respectively, thereby pushing the support frame 6 to unfold or retract around the fixed pin 5. By sliding the sliding block 64, the synchronous unfolding and retraction of the three sets of support frames 6 can be quickly achieved, simplifying the operation steps and improving the efficiency of bracket assembly and storage.

[0032] Specifically, the support frame 6 is also provided with: a telescopic rod 7, which is slidably connected to the bottom of the support frame 6, and a button 71 is provided on the top of the telescopic rod 7, and an anti-slip pad is also installed on the bottom of the telescopic rod 7; the button 71 is slidably connected to the slot opened on the top of the telescopic rod 7, and the button 71 can slide in the cylindrical hole 61; and a spring 72 is provided inside the button 71, with one end of the spring 72 fixed to the inner wall of the button 71 and the other end fixed to the slot on the top of the telescopic rod 7.

[0033] In this embodiment, the telescopic rod 7 is a cylindrical metal rod that can be fully inserted into the support frame 6 and slide. The button 71 is a cylindrical plastic part with a diameter consistent with the diameter of the cylindrical hole 61, and is slidably connected in the slot at the top of the telescopic rod 7. The spring 72 is a cylindrical compression spring made of spring steel, with one end welded to the inner wall of the button 71 and the other end welded to the bottom of the slot at the top of the telescopic rod 7. The anti-slip pad at the bottom of the telescopic rod 7 is a rubber pad. When the button 71 is pressed, the spring 72 is compressed, and the button 71 retracts into the slot of the telescopic rod 7. At this time, the telescopic rod 7 can be pushed to slide along the inside of the support frame 6. After adjusting to the target length, the button 71 is released, the spring 72 returns to its original state, and the button 71 is pushed out and locked into the corresponding cylindrical hole 61, thereby locking the length of the telescopic rod 7. The anti-slip pad increases the friction between the bottom of the telescopic rod 7 and the ground. The telescopic rod 7 can be quickly extended, retracted, and locked. In conjunction with the anti-slip pad, it enhances the grip of the support on the ground and prevents slippage. At the same time, the independent adjustment of the three sets of telescopic rods 7 can keep the measuring instrument in a horizontal position.

[0034] In actual use, the user places the entire device in the desired location, then places the level measuring instrument on the top of the threaded rod 4, and then rotates the knob at the bottom of the threaded rod 4 to adjust the height of the level measuring instrument; then slide the sliding block 64 downwards, and the connecting frame 63 rotates through the pin shaft, causing the top of the support frame 6 to rotate on the fixing pin 5. At this time, the support frame 6 is opened, and the triangular design increases the stability of the entire device; then press the button 71, and the spring 72 is compressed, causing the button 71 to retract into the support frame 6 and disengage from the cylindrical hole 61. Then pull the telescopic rod 7 outwards to adjust to the appropriate position and release it. The spring 72 rebounds without force, causing the button 71 to snap into the cylindrical hole 61, which can then be fixed. By adjusting the three sets of telescopic rods 7 respectively, the level measuring instrument can always be kept in a horizontal position. After completing the measurement, retract the telescopic rod 7 into the slot at the bottom of the support frame 6, and insert the button 71 into the cylindrical hole 61 at the top of the bottom of the support frame 6 for fixation. Then slide the sliding block 64 upward, and the connecting frame 63 will drive the support frame 6 to retract, thus saving space. Finally, tie the support with a rope to complete the storage.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable support for a building level, characterized in that: include: The column (1) has a limit block (100) fixed at the bottom and a connecting cover (2) installed at the top. The connecting cover (2) is located on the column (1), and the bottom of the connecting cover (2) is fixed to the top of the column (1); The U-shaped frame (3) is a four-cornered U-shape, placed upside down on top of the connecting cover (2), and the four corners are fixed to the top of the connecting cover (2); The connecting cover (2) is provided with: fixing pins (5), three sets in total, which are evenly fixed at the bottom of the connecting cover (2), and a support frame (6) is connected inside the fixing pins (5); The support frame (6) has one end rotatably connected to the fixing pin (5) via a pin shaft, and the other end has a cylindrical hole (61) at the bottom. The support frame (6) is also provided with a telescopic rod (7), which is slidably connected to the bottom of the support frame (6), and a button (71) is provided on the top of the telescopic rod (7), and an anti-slip pad is also provided on the bottom of the telescopic rod (7). Button (71) is slidably connected in a slot opened at the top of telescopic rod (7), and button (71) can slide in cylindrical hole (61); A spring (72) is set inside the button (71), with one end of the spring (72) fixed to the inner wall of the button (71) and the other end fixed in the slot at the top of the telescopic rod (7).

2. The retractable building level measuring instrument bracket according to claim 1, characterized in that: The U-shaped frame (3) is also provided with a threaded rod (4), which passes through the top of the threaded connection U-shaped frame (3) and has a knob at the bottom. The measuring instrument can be connected to the threaded rod (4) by the bottom bolt.

3. The retractable building level measuring instrument bracket according to claim 2, characterized in that: There are several sets of cylindrical holes (61) that horizontally penetrate the support frame (6).

4. The retractable building level measuring instrument bracket according to claim 3, characterized in that: The support frame (6) is provided with a fixing sleeve (62), which is fixed in the lower middle part of the support frame (6), and a connecting frame (63) is provided at one end of the fixing sleeve (62).

5. A retractable support for a building level as described in claim 4, characterized in that: One end of the connecting frame (63) is rotatably connected to the fixed sleeve (62) by a pin, and the other end is rotatably connected to the sliding block (64) by a pin; The sliding block (64) is fitted outside the column (1) and can slide on the column (1).

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