Horizontal range finder convenient to install

Abstract

The invention relates to the technical field of horizontal range finders, in particular to a horizontal range finder convenient to install. Comprising a fixing plate, first clamping blocks are slidably connected to the middles of the left side and the right side of the top of the fixing plate, fixing blocks are fixedly connected to the edges of the front side and the rear side of the top of the fixing plate, and elastic pieces are connected between the first clamping blocks and the fixing blocks on the same sides of the first clamping blocks; one end of the rotating rod is connected with the first clamping block through a first connecting rod, and the other end of the rotating rod is connected with the grip through a second connecting rod. According to the invention, by arranging the two clamping blocks I which are held with each other, an operator can drive the two clamping blocks I to automatically unfold under the transmission action of the connecting rod I, the connecting rod II and the rotating rod only by operating the handle with one hand, and then the distance measuring instrument can be easily placed with the other hand, so that rapid installation is realized, the difficulty of single-person operation is effectively reduced, and the working efficiency is improved. And the installation efficiency and the use convenience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of horizontal distance meters, and in particular to a horizontal distance meter that is easy to install. Background Art

[0002] In the fields of surveying, construction, engineering, etc., the horizontal rangefinder is an important measuring tool. The traditional horizontal rangefinder needs to be installed on a tripod and fastened with screws.

[0003] The patent with the patent authorization announcement number CN220436112U provides a horizontal rangefinder that is convenient and quick to fix. By pulling the adjustment plate, the adjustment plate can pull the connected adjustment spring. At the same time, when the clamping plate is pulled, it can quickly move on the surface of the displacement rod, so that the horizontal rangefinder can be quickly fixed after being placed on the surface of the fixed plate.

[0004] However, in actual use of this patent, the operator is required to use both hands to operate multiple adjustment plates and clamping plates at the same time to maintain the expanded state of the central area of the fixed plate and place the horizontal rangefinder at the same time. This is difficult and inconvenient when operated by one person. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a horizontal distance meter that is easy to install.

[0006] The technical solution of the present invention is: a horizontal rangefinder that is easy to install, comprising a fixed plate, wherein the middle parts of the left and right sides of the top of the fixed plate are slidably connected to clamping blocks 1, the left and right edges of the top of the fixed plate are fixedly connected to fixed blocks, an elastic member is connected between the clamping block 1 and the fixed block on the same side, the bottom of the fixed plate is slidably connected to two handles, the left and right sides of the top of the fixed plate are rotatably connected to rotating rods, one end of the rotating rod is connected to the clamping block 1 through the connecting rod 1, and the other end of the rotating rod is connected to the handle through the connecting rod 2, the fixed plate is circumferentially rotatably connected to three telescopic rods, the bottom of the telescopic rod is connected to a universal wheel, the lower part of the telescopic rod is rotatably connected to an L-shaped plate, a torsion spring is connected between the L-shaped plate and the telescopic rod, the lower part of the telescopic rod is slidably connected to a limit rod, and the limit rod is used to limit the rotation of the L-shaped plate.

[0007] As a preferred technical solution of the present invention, a clamping block 2 is slidably connected to the middle of the front and rear sides of the top of the fixed plate, and a fixed block is also fixedly connected to the front and rear edges of the top of the fixed plate. An elastic member is connected between the clamping block 2 and the fixed block on the same side of the clamping block 2. An inclined sliding groove is provided on the left and right sides of the clamping block 2. Both ends of the clamping block 1 are fixedly connected to a connecting rod 3, and the end of the connecting rod 3 away from the clamping block 1 is slidably connected to the inclined sliding groove.

[0008] As a preferred technical solution of the present invention, the long end of the L-shaped plate is a weighted plate, and the short end of the L-shaped plate and the lower part of the telescopic rod are both provided with limiting holes. When the limiting rod is slidably inserted into the limiting holes of the L-shaped plate and the telescopic rod, the rotation of the long end of the L-shaped plate can be limited.

[0009] As a preferred technical solution of the present invention, a plurality of barbs are provided on a side of the long end of the L-shaped plate away from the telescopic rod.

[0010] As a preferred technical solution of the present invention, the long end of the L-shaped plate is rotatably connected to a sickle-shaped ground hook, and the limiting rod can cooperate with the sickle-shaped ground hook to limit the rotation of the long end of the L-shaped plate.

[0011] As a preferred technical solution of the present invention, a weight block is slidably connected to the lower portion of the telescopic rod, and a driving assembly is provided below the fixed plate, which is used to drive the weight block to move axially along the telescopic rod.

[0012] As a preferred technical solution of the present invention, the driving assembly includes a motor, a mounting bracket fixedly connected to the bottom of the fixed plate, the motor is installed at the bottom of the mounting bracket, and the bottom of the mounting bracket is circumferentially connected to three winding wheels through three rotating shafts. The output shaft of the motor and the rotating shafts of the three winding wheels are connected through a gear set. The upper end of the telescopic rod is connected to a pulley, and a pull rope is connected between the weight block and the winding wheel, and the middle section of the pull rope passes around the pulley.

[0013] As a preferred technical solution of the present invention, a buffer layer is provided on one side of the clamping block 1 and the clamping block 2 close to the center of the fixing plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides two clamping blocks 1 that are mutually opposed. The operator only needs to operate the handle with one hand to drive the two clamping blocks 1 to automatically unfold under the transmission action of the connecting rod 1, the connecting rod 2 and the rotating rod. Then, the other hand can easily place the rangefinder, realizing rapid installation. This effectively reduces the difficulty of single-person operation and improves installation efficiency and ease of use. At the same time, through the provision of the clamping block 2, under the transmission of the connecting rod 3 and the guidance of the inclined slide groove, the clamping block 2 can move synchronously with the clamping block 1, thereby enhancing the circumferential clamping stability of the rangefinder.

[0015] 2. The present invention increases the contact support with the ground and improves the stability of the device by setting an L-shaped plate. The driving assembly drives the weight block to move axially along the telescopic rod, and the center of gravity position of the device can be adjusted as needed to ensure good stability under different working conditions. At the same time, the sickle-shaped ground hook is hammered into the ground by the weight block, further enhancing the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the installation structure of the clamping block 1 of the present invention.

[0018] Figure 3 It is a cross-sectional view of the fixing plate of the present invention.

[0019] Figure 4 This is a schematic diagram of the installation structure of the clamping block 2 of the present invention.

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the handles of the present invention when they are close to each other.

[0021] Figure 6 Schematic diagram of the installation structure of the L-shaped plate of the present invention.

[0022] Figure 7 Exploded view of the L-shaped plate and the limiting rod of the present invention.

[0023] Figure 8 Schematic diagram of the installation structure of the L-shaped plate and sickle-shaped ground hook of the present invention.

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of the telescopic rod of the present invention after it is unfolded.

[0025] Figure 10 It is a schematic diagram of the partial structure of the weight block, L-shaped plate and sickle-shaped ground hook of the present invention.

[0026] Figure 11 It is a partial structural diagram of the motor, winding wheel and gear set of the present invention.

[0027] Among them: 1-fixed plate, 101-mounting frame, 2-clamping block 1, 3-clamping block 2, 4-fixed block, 5-elastic part, 6-handle, 7-rotating rod, 8-connecting rod 1, 9-connecting rod 2, 10-connecting rod 3, 11-telescopic rod, 12-universal wheel, 13-L-shaped plate, 131-torsion spring, 14-limiting rod, 15-oblique slide groove, 16-limiting hole, 17-barb, 18-sickle-shaped ground hook, 19-weight block, 20-motor, 21-winding wheel, 22-gear set, 23-pulley, 24-pull rope, 25-buffer layer. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention.

[0029] Example 1: Please refer to Figure 1-Figure 5The two ends of the rotating rod 7 are provided with a groove, and a connecting rod 8 is connected between one end of the rotating rod 7 and the clamping block 2, and the other end of the rotating rod 7 is connected to the handle 6. The two ends of the torsion spring 131 are connected to the telescopic rod 11 and the L-shaped plate 13 respectively. The lower part of the telescopic rod 11 is slidably connected to the limit rod 14. The limit rod 14 is connected to the lower part of the telescopic rod 11 by a connecting rope. The limit rod 14 is used to limit the rotation of the L-shaped plate 13.

[0030] The middle part of the front and rear sides of the top of the fixed plate 1 is slidably connected with a clamping block 2 3, which is arc-shaped, and the front and rear edges of the top of the fixed plate 1 are also fixedly connected with a fixed block 4. An elastic member 5 is connected between the clamping block 2 3 and the fixed block 4 on the same side. An inclined sliding groove 15 is provided on the left and right sides of the clamping block 2 3, and both ends of the clamping block 1 2 are fixedly connected with a connecting rod 3 10. The two ends of the connecting rod 3 10 are perpendicular to each other. The end of the connecting rod 3 10 away from the clamping block 1 2 is slidably connected in the inclined sliding groove 15. When the clamping block 1 2 drives the connecting rod 3 10 to move away from the center of the fixed plate 1, one end of the connecting rod 3 10 will slide in the inclined sliding groove 15, thereby driving the clamping block 2 3 to move synchronously away from the center of the fixed plate 1, so that when the clamping block 1 2 is operated to move, the clamping block 2 3 can also move synchronously with the clamping block 1 2, effectively simplifying the operation.

[0031] A buffer layer 25 is provided on one side of the clamping block 1 2 and the clamping block 2 3 close to the center of the fixed plate 1 . The buffer layer 25 can play a buffering role in the process of clamping the rangefinder by the clamping plate 1 and the clamping plate 2, preventing the rangefinder from being damaged due to excessive clamping force.

[0032] The working principle of this embodiment is as follows: initially, the device is moved to the use ground through the universal wheel 12, the elastic member 5 is in a natural state, the distance between the two grips 6 is the maximum value that can be achieved, the limit rod 14 is inserted into the limit hole 16, the torsion spring 131 is in a deformed state, and the rotation of the limit rod 14 is restricted; when the rangefinder needs to be installed, the operator first moves the two grips 6 toward the middle by one hand, and this action rotates the rotating rod 7 through the connecting rod 2 9, and then pushes the clamping block 1 2 to move toward its corresponding fixed block 4 through the connecting rod 1 8. At the same time, the movement of the clamping block 1 2 drives the connecting rod 3 10 to slide in the inclined slot 15, thereby driving the clamping block 2 3 to move toward its corresponding fixed block 4, and expanding the central area of the fixed plate 1. In this process, the clamping block 1 2 and the clamping block 2 3 are respectively connected. The elastic members 5 will all be compressed. Subsequently, the operator places the rangefinder on the middle of the fixing plate 1 with the other hand and then releases the grip 6. At this time, the clamping block 1 2 and the clamping block 2 3 will move synchronously toward the center of the fixing plate 1 under the elastic force of the elastic member 5 until they contact the lower part of the rangefinder. The elastic member 5 provides clamping force for the clamping block 1 2 and the clamping block 2 3 to form a firm clamp for the rangefinder. After the rangefinder is fixed, the length of the three telescopic rods 11 is adjusted to adapt to different terrain or height requirements, and then the limit rod 14 is pulled out from the limit hole 16 of the L-shaped plate 13 and the telescopic rod 11 to release the rotation restriction of the L-shaped plate 13. The L-shaped plate 13 is rotated downward by the elastic action of the torsion spring 131 until it contacts the ground, providing support for the device and effectively increasing the contact area and friction with the ground to prevent the device from sliding.

[0033] Example 2: Based on Example 1, please refer to Figure 6 and Figure 7 A horizontal rangefinder that is easy to install, the long end of the L-shaped plate 13 is a weighted plate, and the short end of the L-shaped plate 13 and the lower part of the telescopic rod 11 are both provided with a limiting hole 16. When the limiting rod 14 is slidably inserted into the limiting holes 16 of the L-shaped plate 13 and the telescopic rod 11, the long end of the L-shaped plate 13 can be limited from rotating.

[0034] A plurality of barbs 17 are provided on a side of the long end of the L-shaped plate 13 away from the telescopic rod 11 .

[0035] The working principle of this embodiment: Based on the working principle of embodiment 1, after the long end of the L-shaped plate 13 contacts the ground, its long end weighted plate and the barb 17 can increase the contact friction with the ground, effectively preventing the device from sliding and improving the stability of the device.

[0036] Example 3: Based on Example 1, please refer to Figures 8-11, a horizontal distance meter that is easy to install, the long end of the L-shaped plate 13 is rotatably connected to the sickle-shaped hook 18, and the limit rod 14 can cooperate with the sickle-shaped hook 18 to limit the rotation of the long end of the L-shaped plate 13.

[0037] The lower portion of the telescopic rod 11 is slidably connected to a weight block 19 , and a driving assembly is provided below the fixed plate 1 , which is used to drive the weight block 19 to move axially along the telescopic rod 11 .

[0038] The driving assembly includes a motor 20. A mounting frame 101 is fixedly connected to the bottom of the fixed plate 1. The motor 20 is installed at the bottom of the mounting frame 101. The bottom of the mounting frame 101 is circumferentially connected to three winding wheels 21 through three rotating shafts. The output shaft of the motor 20 is connected to the rotating shafts of the three winding wheels 21 through a gear set 22. The gear set 22 includes a driving tooth and three driven teeth. The output shaft of the motor 20 is directly connected to the driving tooth, and the three driven teeth are respectively connected to the rotating shafts of the three winding wheels 21. The three driven teeth are all engaged with the driving tooth. When the motor 20 drives the driving tooth to rotate, the three driven teeth will rotate. The upper end of the telescopic rod 11 is connected to a pulley 23, and a pull rope 24 is connected between the weight block 19 and the winding wheel 21. The middle section of the pull rope 24 passes around the pulley 23, and the pulley 23 can transmit and restrain the force at both ends of the pull rope 24.

[0039] The working principle of this embodiment: Based on the working principle of Example 1, after changing the height of the rangefinder by adjusting the length of the telescopic rod 11, the center of gravity of the entire device changes. At this time, the three winding wheels 21 are driven synchronously forward or reversely by the motor 20 under the transmission action of the gear set 22, so that all the pull ropes 24 are wound or unwound on the corresponding winding wheels 21, so that all the weight blocks 19 are moved axially upward or downward along the telescopic rod 11. In this way, the center of gravity position of the device can be adjusted as needed to enhance the stability of the device. In addition, after the long end of the L-shaped plate 13 contacts the ground, the weight block 19 is driven by the driving assembly to move reciprocating axially along the telescopic rod 11 and hammer the sickle-shaped ground hook 18, so that the sickle-shaped ground hook 18 gradually penetrates into the ground, providing stronger ground grip, so that the stability of the device can be further enhanced.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horizontal distance meter that is easy to install, comprising a fixed plate (1) and telescopic rods (11), wherein the fixed plate (1) is rotatably connected to three telescopic rods (11), and is characterized in that: The middle parts of the left and right sides of the top of the fixed plate (1) are slidably connected to clamping blocks (2), the edges of the left and right sides of the top of the fixed plate (1) are fixedly connected to fixed blocks (4), an elastic member (5) is connected between the clamping block (2) and the fixed block (4) on the same side, the bottom of the fixed plate (1) is slidably connected to two handles (6), the left and right sides of the top of the fixed plate (1) are rotatably connected to rotating rods (7), one end of the rotating rod (7) is connected to the clamping block (2) through a connecting rod (8), and the other end of the rotating rod (7) is connected to the handle (6) through a connecting rod (9), the bottom of the telescopic rod (11) is connected to a universal wheel (12), the lower part of the telescopic rod (11) is rotatably connected to an L-shaped plate (13), a torsion spring (131) is connected between the L-shaped plate (13) and the telescopic rod (11), the lower part of the telescopic rod (11) is slidably connected to a limit rod (14), and the limit rod (14) is used to limit the rotation of the L-shaped plate (13).

2. The horizontal distance meter that is easy to install as claimed in claim 1, characterized in that: The middle parts of the front and rear sides of the top of the fixed plate (1) are both slidably connected to the clamping block 2 (3), and the edges of the front and rear sides of the top of the fixed plate (1) are also fixedly connected to the fixed blocks (4). An elastic member (5) is connected between the clamping block 2 (3) and the fixed block (4) on the same side. The left and right sides of the clamping block 2 (3) are both provided with an inclined sliding groove (15). Both ends of the clamping block 1 (2) are fixedly connected to the connecting rod 3 (10), and the end of the connecting rod 3 (10) away from the clamping block 1 (2) is slidably connected to the inclined sliding groove (15).

3. The horizontal distance meter that is easy to install as claimed in claim 2, characterized in that: The long end of the L-shaped plate (13) is a weighted plate, and the short end of the L-shaped plate (13) and the lower part of the telescopic rod (11) are both provided with a limiting hole (16). When the limiting rod (14) is slidably inserted into the limiting hole (16) of the L-shaped plate (13) and the telescopic rod (11), the long end of the L-shaped plate (13) can be limited from rotating.

4. The horizontal distance meter that is easy to install as claimed in claim 3, characterized in that: A plurality of barbs (17) are provided on one side of the long end of the L-shaped plate (13) away from the telescopic rod (11).

5. The horizontal distance meter that is easy to install as claimed in claim 2, characterized in that: The long end of the L-shaped plate (13) is rotatably connected to a sickle-shaped ground hook (18), and the limiting rod (14) can cooperate with the sickle-shaped ground hook (18) to limit the rotation of the long end of the L-shaped plate (13).

6. The horizontal distance meter that is easy to install as claimed in claim 5, characterized in that: The lower portion of the telescopic rod (11) is slidably connected to a weight block (19), and a driving assembly is provided below the fixed plate (1). The driving assembly is used to drive the weight block (19) to move axially along the telescopic rod (11).

7. The horizontal distance meter that is easy to install as claimed in claim 6, characterized in that: The driving assembly includes a motor (20), a mounting frame (101) fixedly connected to the bottom of the fixing plate (1), the motor (20) being mounted on the bottom of the mounting frame (101), the bottom of the mounting frame (101) being rotatably connected to three winding wheels (21) via three rotating shafts, the output shaft of the motor (20) being connected to the rotating shafts of the three winding wheels (21) via a gear set (22), the upper end of the telescopic rod (11) being connected to a pulley (23), a pull rope (24) being connected between the weight block (19) and the winding wheel (21), and the middle section of the pull rope (24) passing around the pulley (23).

8. The horizontal distance meter that is easy to install as claimed in claim 2, characterized in that: A buffer layer (25) is provided on one side of the clamping block 1 (2) and the clamping block 2 (3) close to the center of the fixed plate (1).

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