Fixed point marking device for engineering surveying

Abstract

The utility model discloses a fixed point marking device for engineering surveying, which comprises a mounting frame, a telescopic rod, a sliding column, a fixed pipe and a fixed point block, the mounting frame is fixedly mounted at the top of the surface of the fixed pipe, and the sliding column is connected inside the fixed pipe in a sliding manner. Through the arrangement of the mounting block, the mounting frame and the positioning plate, the positioning plate can move up and down, so that the device can adapt to uneven ground, the device can be stably placed on different terrains, the marking deflection is avoided, meanwhile, the special treading force application assembly is arranged, and compared with the prior art which mainly depends on manual pressing for point fixing, the labor intensity of workers is reduced, and the working efficiency is improved. When a point is fixed on a hard ground, auxiliary force application can be provided for an operator, the fatigue degree of the operator is greatly relieved, and the problem that the operator is extremely tired when the point is fixed on the uneven ground due to the fact that the positioning disc is not provided with an adjusting structure and the mark is extremely prone to skew and lacks an auxiliary force application structure when the point is marked on the uneven ground is solved.

Description

Technical Field

[0001] This utility model relates to the field of measurement and positioning technology, specifically a positioning marking device for engineering measurement. Background Technology

[0002] Engineering surveying is a general term for all surveying work in engineering construction, including various surveying work carried out in the surveying, design, construction and management stages of engineering construction. These works can be divided into engineering control surveying and topographic surveying in the surveying and design stage, construction surveying and equipment installation surveying in the construction stage, and as-built surveying in the completion and management stages, etc. Engineering surveying requires the measurement of various parameters of the construction site, including the work of marking the site at fixed points.

[0003] According to the authorization announcement number CN221781567U, an engineering surveying point marking device is disclosed. A positioning plate is sleeved on the lower outer end of the measuring rod, and a mounting plate is sleeved on the upper outer end of the measuring rod. Connecting rods are symmetrically arranged on the upper surface of the mounting plate, and the upper ends of the connecting rods are connected to the connecting plate. A first electric telescopic rod is installed at the middle of the lower surface of the connecting plate, and a connecting sleeve is connected to the telescopic end of the first electric telescopic rod. The upper end of the point marking rod is embedded inside the connecting sleeve, and fixing rods are symmetrically arranged on the outside of the connecting sleeve. The handle on the upper surface of the connecting plate facilitates carrying the measuring rod and the point marking rod for engineering surveying point marking work. Simultaneously, the operation of the first electric telescopic rod causes the point marking rod to move inside the measuring rod, thereby achieving automatic point marking.

[0004] Research on the aforementioned patents and existing technology equipment revealed certain defects in practical applications. The positioning disc at the bottom lacks an adjustment structure, making it prone to marking skewed points on uneven ground. Furthermore, when marking points on harder surfaces, it relies primarily on manual pressing without any auxiliary force application structure, causing extreme fatigue for the operator and significantly limiting its application. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a point marking device for engineering surveying, which has the advantages of stable apex and convenient force application. It solves the problem that when the positioning disc is not equipped with an adjustment structure, the marking is prone to be skewed when marking points on uneven ground, and the lack of an auxiliary force application structure makes it extremely tiring for the operator when marking points on such ground.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a point marking device for engineering surveying, comprising a mounting frame, a telescopic rod, a sliding column, a fixed tube, and a point block. The mounting frame is fixedly installed on the top of the surface of the fixed tube. The sliding column is slidably connected inside the fixed tube. The telescopic rod is fixedly installed on the top inside the mounting frame. The output end of the telescopic rod is fixedly connected to the top of the sliding column. The point block is fixedly connected to the bottom of the sliding column. The bottom of the surface of the fixed tube is fixedly connected to the mounting block. The left and right sides of the mounting block are both fixedly connected to the mounting frame. The inside of the mounting frame is slidably connected to a positioning plate. The front and rear sides of the bottom outer side of the positioning plate are both fixedly connected to a stepping force application component. A locking component is provided on the front of the mounting frame.

[0007] In a preferred embodiment of this invention, the stepping force application component includes a fixed block, which is fixedly connected to the front and rear sides of the bottom outer side of the positioning plate. A movable block is movably connected inside the fixed block via a pivot pin. A foot pedal is fixedly connected to the top of the movable block, and a retraction fixing component is fixedly connected to the top of the foot pedal.

[0008] As a preferred embodiment of this invention, the locking component includes a threaded hole, which is located on the front side of the mounting frame. A screw is threaded into the inside of the threaded hole, and the rear end of the screw abuts against the front side of the positioning plate.

[0009] As a preferred embodiment of this utility model, the retraction fixing component includes a locking plate, which is fixedly connected to the top of the pedal. A sliding rod is fixedly connected to both the front and rear sides of the top of the positioning plate. A locking plate is slidably connected to the surface of the sliding rod. A slot for cooperating with the locking plate is provided on the top of the locking plate.

[0010] As a preferred embodiment of this invention, a rotating block is fixedly connected to the front end of the screw, and the rotating block is arranged in a butterfly shape.

[0011] As a preferred embodiment of this utility model, a limiting plate is fixedly connected to the top of the slide rod, and a clamping spring is sleeved on the surface of the slide rod, with the clamping spring located between the limiting plate and the locking plate.

[0012] As a preferred embodiment of this invention, an unlocking lever is fixedly connected to the top of the card plate, and a pull ring is fixedly connected to the top of the unlocking lever.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up an installation block, an installation frame, and a positioning plate, enables the positioning plate to move up and down, thereby adapting to uneven ground and ensuring that the device can be stably placed on different terrains, avoiding skewed markings. At the same time, a special step-and-apply force component is set up, which, compared with the prior art that mainly relies on manual pressing for marking, provides auxiliary force for the operator when marking on harder ground, greatly reducing the operator's fatigue. It solves the problem that the positioning plate does not have an adjustment structure, which makes it easy for the markings to be skewed when marking on uneven ground, and the lack of an auxiliary force structure makes it extremely tiring for the operator when marking on such ground. It achieves the effect of stable positioning and convenient force application.

[0015] 2. By setting up a stepping force application component, this utility model can effectively convert the force of the operator's stepping into downward pressure on the positioning plate and the entire device through the cooperation of the stepping pedal, the movable block and the fixed block, and the lever principle. This greatly reduces the fatigue of manual pressing and improves the convenience of fixed-point operation on hard ground.

[0016] 3. By setting a locking component, after the positioning plate has been slidably adjusted in the mounting frame, the screw is tightened through the threaded hole on the mounting frame, thereby fixing the positioning plate in place and preventing it from sliding freely after adjustment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the pedal of this utility model.

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Mounting bracket; 2. Telescopic rod; 3. Sliding column; 4. Fixing tube; 5. Fixed block; 6. Mounting block; 7. Mounting frame; 8. Positioning plate; 9. Step-on force application component; 91. Fixing block; 92. Movable block; 93. Step pedal; 94. Retraction fixing component; 941. Locking plate; 942. Slide rod; 943. Locking plate; 944. Locking groove; 10. Locking component; 101. Threaded hole; 102. Screw; 11. Rotating block; 12. Limiting plate; 13. Anti-locking spring; 14. Unlocking lever; 15. Pull ring. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 5 As shown, the present invention provides a point marking device for engineering surveying, comprising a mounting frame 1, a telescopic rod 2, a sliding column 3, a fixed tube 4, and a point marking block 5. The mounting frame 1 is fixedly mounted on the top of the surface of the fixed tube 4. The sliding column 3 is slidably connected inside the fixed tube 4. The telescopic rod 2 is fixedly mounted on the top of the interior of the mounting frame 1. The output end of the telescopic rod 2 is fixedly connected to the top of the sliding column 3. The point marking block 5 is fixedly connected to the bottom of the sliding column 3. A mounting block 6 is fixedly connected to the bottom of the surface of the fixed tube 4. Mounting frames 7 are fixedly connected to the left and right sides of the mounting block 6. A positioning plate 8 is slidably connected inside the mounting frame 7. Stepping force application components 9 are fixedly connected to the front and rear sides of the bottom of the outer side of the positioning plate 8. A locking component 10 is provided on the front of the mounting frame 7.

[0025] refer to Figure 3 , Figure 4 and Figure 5 The pedal force application component 9 includes a fixed block 91, which is fixedly connected to the front and rear sides of the bottom outer side of the positioning plate 8. The fixed block 91 is movably connected to a movable block 92 through a shaft pin. The top of the movable block 92 is fixedly connected to a pedal 93, and the top of the pedal 93 is fixedly connected to a retraction fixing component 94.

[0026] As a technical optimization of this utility model, by setting up a stepping force application component 9, and through the cooperation of the stepping pedal 93 with the movable block 92 and the fixed block 91, the lever principle can be used to effectively convert the force of the operator stepping into downward pressure on the positioning plate 8 and the entire device, which greatly reduces the fatigue of manual pressing and improves the convenience of fixed-point operation on hard ground.

[0027] refer to Figure 3 , Figure 4 and Figure 5 The locking component 10 includes a threaded hole 101, which is located on the front of the mounting frame 7. A screw 102 is threaded into the inside of the threaded hole 101, and the rear end of the screw 102 abuts against the front of the positioning plate 8.

[0028] As a technical optimization of this utility model, by setting a locking component 10, after the positioning plate 8 has slid and adjusted in the mounting frame 7, the screw 102 is tightened through the threaded hole 101 on the mounting frame 7, thereby fixing the positioning plate 8 with the screw 102 and preventing the positioning plate 8 from sliding randomly after adjustment.

[0029] refer to Figure 3 , Figure 4 and Figure 5 The retraction fixing component 94 includes a locking plate 941, which is fixedly connected to the top of the pedal 93. The front and rear sides of the top of the positioning plate 8 are fixedly connected to a slide rod 942. A locking plate 943 is slidably connected to the surface of the slide rod 942. The top of the locking plate 941 is provided with a slot 944 for use with the locking plate 943.

[0030] As a technical optimization of this utility model, by setting a retraction fixing component 94, the retraction fixing component 94 can fix the pedal 93 on the positioning plate 8 when no force is needed to apply the pedal 93, so as to prevent the pedal 93 from shaking or accidentally extending, which would affect the carrying and normal use of the device, and improve the overall stability and operation convenience of the device.

[0031] refer to Figure 3 , Figure 4 and Figure 5 The front end of the screw 102 is fixedly connected to a rotating block 11, which is butterfly-shaped.

[0032] As a technical optimization of this utility model, by setting a rotating block 11, which is butterfly-shaped, the contact area between the operator and the screw 102 is increased, making it easier for the operator to apply force when rotating the screw 102, making the operation more convenient and labor-saving, and improving the efficiency of the adjustment and locking component 10.

[0033] refer to Figure 3 , Figure 4 and Figure 5 The top of the slide bar 942 is fixedly connected to the limiting plate 12, and the surface of the slide bar 942 is fitted with a clamping spring 13, which is located between the limiting plate 12 and the clamping plate 943.

[0034] As a technical optimization of this utility model, by setting a limiting plate 12 and a retaining spring 13, the limiting plate 12 at the top of the slide rod 942 prevents the locking plate 943 from falling off the slide rod 942, and the retaining spring 13 makes the locking plate 943 always have a tendency to slide towards the locking plate 941 slot 944, thus ensuring that the retractable fixing component 94 can work stably and reliably.

[0035] refer to Figure 3 , Figure 4 and Figure 5The top of the card plate 943 is fixedly connected to an unlocking lever 14, and the top of the unlocking lever 14 is fixedly connected to a pull ring 15.

[0036] As a technical optimization of this utility model, by setting an unlocking lever 14 and a pull ring 15, when it is necessary to use the pedal 93 to apply force, the operator pulls the pull ring 15, the pull ring 15 drives the unlocking lever 14, the unlocking lever 14 pulls the locking plate 943, so that the locking plate 943 disengages from the locking plate 941's slot 944, thereby allowing the pedal 93 to be lowered for force application, improving the operating efficiency of the device.

[0037] The working principle and usage process of this utility model are as follows: When using the engineering measurement and positioning device, arrive at the designated measurement location and observe the ground conditions. If the ground is uneven, adjust the position of the positioning plate 8 inside the mounting frame 7 according to the terrain. Slide the positioning plate 8 to adapt to the undulations of the ground, ensuring the device can be placed stably. After the positioning plate 8 is adjusted to the appropriate position, rotate the screw 102 inside the threaded hole 101 on the front of the mounting frame 7, so that the rear end of the screw 102 abuts against the front of the positioning plate 8. Utilize the friction between the screw 102 and the positioning plate 8 to firmly fix the positioning plate 8 in its current position within the mounting frame 7, preventing movement of the positioning plate 8 during subsequent operations and ensuring the stability of the device. If the ground is hard, to facilitate subsequent positioning operations, pull the pull ring 15 at the top of the unlocking lever 14, causing the unlocking lever 14 to move upwards. This causes the locking plate 943 to slide upwards along the sliding rod 942, disengaging from the locking plate 941's slot 944, releasing the fixation on the foot pedal 93, allowing the foot pedal to move freely. The pedal 93 is flipped down via the fixed block 91 and the movable block 92. Then, the telescopic rod 2 at the top of the mounting frame 1 is activated. The output end of the telescopic rod 2 pushes the sliding column 3 to slide downward in the fixed tube 4. The sliding column 3 drives the bottom fixed block 5 to gradually approach the ground until the fixed block 5 contacts the ground and completes the fixed point marking action. During the fixed point marking process, the operator steps on the pedal 93, causing the pedal 93 to drive the movable block 92 to move downward through the fixed block 91, thereby transmitting force to the positioning plate 8. The positioning plate 8 applies force to the entire device, assisting in pressing the fixed block 5 into the harder ground. After the fixed point marking is completed, the pedal 93 is lifted upward, so that the slot 944 at the top of the locking plate 941 aligns with the locking plate 943 on the slide rod 942. Under the upward elastic force of the clamping spring 13 sleeved on the surface of the slide rod 942, the locking plate 943 automatically slides down and embeds into the slot 944 of the locking plate 941, fixing the pedal 93 in the retracted position and preventing the pedal 93 from being inconvenient to carry when unfolded.

[0038] In summary, this point marking device for engineering surveying, by setting up mounting block 6, mounting frame 7, and positioning plate 8, allows the positioning plate 8 to move up and down, thus adapting to uneven ground and ensuring stable placement of the device on different terrains, preventing mark skew. Simultaneously, a dedicated stepping force-applying component 9 is included, which, compared to existing technologies that primarily rely on manual pressing for point marking, provides auxiliary force for the operator when marking on harder surfaces, greatly reducing operator fatigue. This solves the problem that the positioning disc lacks an adjustment structure, making it prone to mark skew on uneven ground and causing extreme operator fatigue when marking on such surfaces.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A point marking device for engineering surveying, comprising a mounting frame (1), a telescopic rod (2), a sliding column (3), a fixing tube (4), and a point marking block (5), characterized in that: The mounting bracket (1) is fixedly installed on the top of the surface of the fixed tube (4). The sliding column (3) is slidably connected inside the fixed tube (4). The telescopic rod (2) is fixedly installed on the top inside the mounting bracket (1). The output end of the telescopic rod (2) is fixedly connected to the top of the sliding column (3). The fixed block (5) is fixedly connected to the bottom of the sliding column (3). The bottom of the surface of the fixed tube (4) is fixedly connected to the mounting block (6). The left and right sides of the mounting block (6) are fixedly connected to the mounting frame (7). The inside of the mounting frame (7) is slidably connected to the positioning plate (8). The front and rear sides of the bottom of the outer side of the positioning plate (8) are fixedly connected to the stepping force application component (9). The front of the mounting frame (7) is provided with a locking component (10).

2. The point marking device for engineering surveying according to claim 1, characterized in that: The pedal force application component (9) includes a fixed block (91), which is fixedly connected to the front and rear sides of the bottom of the outer side of the positioning plate (8). The fixed block (91) is movably connected to a movable block (92) through a shaft pin. The top of the movable block (92) is fixedly connected to a pedal (93), and the top of the pedal (93) is fixedly connected to a retraction fixing component (94).

3. A point marking device for engineering surveying according to claim 1, characterized in that: The locking assembly (10) includes a threaded hole (101) on the front of the mounting frame (7), and a screw (102) is threaded inside the threaded hole (101), with the rear end of the screw (102) abutting against the front of the positioning plate (8).

4. A point marking device for engineering surveying according to claim 2, characterized in that: The retraction fixing assembly (94) includes a locking plate (941), which is fixedly connected to the top of the foot pedal (93). The front and rear sides of the top of the positioning plate (8) are fixedly connected to a slide rod (942). A card plate (943) is slidably connected to the surface of the slide rod (942). The top of the locking plate (941) is provided with a slot (944) for use with the card plate (943).

5. A point marking device for engineering surveying according to claim 3, characterized in that: The front end of the screw (102) is fixedly connected to a rotating block (11), which is butterfly-shaped.

6. A point marking device for engineering surveying according to claim 4, characterized in that: The top of the slide bar (942) is fixedly connected to a limiting plate (12), and a clamping spring (13) is sleeved on the surface of the slide bar (942). The clamping spring (13) is located between the limiting plate (12) and the locking plate (943).

7. A point marking device for engineering surveying according to claim 4, characterized in that: The top of the card plate (943) is fixedly connected to an unlocking lever (14), and the top of the unlocking lever (14) is fixedly connected to a pull ring (15).

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