Portable land survey point fixing device

Abstract

The utility model relates to the technical field of land survey point fixing devices, in particular to a portable land survey point fixing device. Comprising a sleeve, a pushing and pressing cylinder is sleeved with the sleeve in a matched mode, a handle is arranged at the top of a pushing and pressing cylinder body, a locking mechanism is arranged at the bottom of the pushing and pressing cylinder body, and a locking plate and a movable top plate in the locking mechanism jointly move to lock or loosen a positioning marker post; the point fixing device is light in weight and low in cost, operation can be completed by one person, and convenience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of land surveying pinpoint devices, and in particular to a portable land surveying pinpoint device. Background Technology

[0002] Faced with increasingly complex spatial information demands such as detailed land surveys, engineering layout, and real estate registration, the need for measurement accuracy and efficiency has reached new heights. Pointers, as core equipment directly responsible for accurately calibrating coordinates on the ground, have become the cornerstone for surveying and mapping projects to achieve precise mapping between physical and digital coordinate spaces.

[0003] For example, Chinese utility model patent CN222579302U discloses a portable land surveying marker. The marker includes a base for movement, and a stake-raising mechanism is provided at the upper end of the base. The stake-raising mechanism includes a first upright plate and a second upright plate fixedly installed on the upper end of the base. A first servo motor is provided at the upper end of the first upright plate. The output shaft of the first servo motor is fixedly connected to a first pulley. The first pulley is connected to a second pulley via a belt drive. One end of a first lead screw is fixedly connected to the second pulley. The other end of the first lead screw passes through the first upright plate and is rotatably connected to the second upright plate. This utility model, through the design of the stake-raising mechanism, facilitates the fixed installation of several sets of markers onto the collection cylinder, making it convenient to store and raise the markers. Furthermore, the first servo motor and the stepper motor drive the collection cylinder to move and rotate respectively, facilitating the continuous raising of markers. The marker in the above-mentioned patent has a complex structure, cumbersome operation, and is bulky, greatly reducing the convenience for operators.

[0004] Therefore, this application provides a portable land surveying pinpoint device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a portable land surveying point-finding device to solve the problems of existing point-finding devices being bulky, complex in structure, and greatly reducing the convenience and flexibility of operators.

[0006] To solve the above-mentioned technical problems, this utility model provides a portable land surveying and positioning device, including a sleeve, a fitted push cylinder inside the sleeve, a handle on the top of the push cylinder body, and a locking mechanism at the bottom of the push cylinder body. The locking plate and the movable top plate in the locking mechanism work together to lock and release the positioning pole.

[0007] A further improvement of this utility model is that the locking mechanism also includes a shaft head, an arc-shaped clamp, a lower rod, a connecting rod, an elongated through hole, a movable shaft, and a nut; the shaft head body passes through the push cylinder and is fixed by the nut.

[0008] A further improvement of the present invention is that: the shaft head body is connected to the arc-shaped clamp via a shaft rod, a locking plate is provided on the upper part of the arc-shaped clamp body, a lower rod is provided on the lower part of the arc-shaped clamp body, an elongated through hole is provided on the lower rod body, a movable shaft rod is adapted to be provided in the elongated through hole, a connecting rod is provided at one end of the movable shaft rod body, and the bottom of the connecting rod body is fixed to the movable top plate.

[0009] A further improvement of this utility model is that the outward arc angle of the upper and lower parts of the arc-shaped clamp body is at least 15 degrees.

[0010] A further improvement of this utility model is that the gap between the inner peripheral wall of the push cylinder body and the movable top plate body is at least 0.5cm.

[0011] A further improvement of this utility model is that the locking mechanism body consists of two sets, which are symmetrically arranged to clamp the upper part of the positioning rod body.

[0012] A further improvement of this utility model is that the locking plate body is an arc-shaped body, and its shape is adapted to clamp and position the positioning rod.

[0013] A further improvement of this utility model is that two sliding grooves are symmetrically arranged on the inner wall of the sleeve body, and the nut slides in the sliding grooves to prevent the locking mechanism from rotating.

[0014] A further improvement of this utility model is that: a positioning seat is fixed on the bottom end face of the sleeve body, and positioning nails are set at the four corners of the bottom surface of the positioning seat body; at least one set of reinforcing ribs are symmetrically fixed on the upper surface of the positioning seat body and the surface of the sleeve.

[0015] A further improvement of this utility model is that the inner diameter of the inner cavity of the sleeve body is the same as the inner diameter of the through hole in the positioning seat.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] 1. This utility model provides a portable land surveying point locator, which is lightweight and low in cost, allowing a single person to complete the surveying work that would normally require 2-3 people; the point locator is suitable for various complex terrains, greatly improving convenience.

[0018] 2. The portable land surveying positioning device provided by this utility model uses a locking mechanism to adaptively lock the positioning pole, preventing the positioning pole from rotating or moving when pressed down, thus affecting the measurement accuracy. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of a portable land surveying pinpoint device;

[0021] Figure 2 A schematic diagram of a portable land surveying pinpoint device;

[0022] Figure 3 A cross-sectional view of a portable land surveying point-finding device;

[0023] Figure 4 This is a partially enlarged structural diagram of the push cylinder and the movable top plate;

[0024] Figure 5 This is a partially enlarged structural diagram of the movable top plate and locking plate;

[0025] Figure 6 This is a partially enlarged structural diagram of the locking plate, shaft head, and connecting rod;

[0026] Figure 7 This is a partially enlarged structural diagram of the locking plate, shaft head, connecting rod, and movable shaft.

[0027] Figure 8 This is a partially enlarged structural diagram of the sleeve and groove;

[0028] Figure 9 This is a structural diagram of a positioning benchmark.

[0029] Reference numerals: 1. Sleeve; 2. Push cylinder; 3. Handle; 4. Positioning seat; 5. Reinforcing rib; 6. Positioning pin; 7. Through hole; 8. Locking mechanism; 81. Movable top plate; 82. Locking plate; 83. Nut; 84. Shaft head; 85. Arc clamp; 86. Lower rod; 87. Connecting rod; 88. Long through hole; 89. Movable shaft; 9. Positioning marker; 11. Slide groove. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] 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.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The present invention will be further explained below with reference to specific embodiments.

[0034] like Figures 1-9As shown, this embodiment provides a portable land surveying and positioning device, including a sleeve 1, a fitted push cylinder 2 inside the sleeve 1, a handle 3 on the top of the push cylinder 2, and a locking mechanism 8 at the bottom of the push cylinder 2. The locking mechanism 8 includes a locking plate 82 and a movable top plate 81 that work together to lock and release the positioning marker 9. The locking mechanism 8 also includes a shaft head 84, an arc-shaped clamp 85, a lower rod 86, a connecting rod 87, an elongated through hole 88, a movable shaft 89, and a nut 83; the shaft head 84 passes through the push cylinder 2 and is fixed by the nut 83. The shaft head 84 is connected to the arc-shaped clamp 85 via a shaft rod. A locking plate 82 is installed on the upper part of the arc-shaped clamp 85, and a lower rod 86 is installed at the lower part. An elongated through-hole 88 is provided through the lower rod 86, and a movable shaft 89 is fitted inside the elongated through-hole 88. A connecting rod 87 is installed at one end of the movable shaft 89, and the bottom of the connecting rod 87 is fixed to the movable top plate 81. Specifically, a push cylinder 2 is fitted inside the sleeve 1. A handle 3 is installed on the top of the push cylinder 2 for the user to hold and press down on it. A locking mechanism 8 is provided at the bottom of the push cylinder 2. The locking plate 82 and the movable top plate 81 in the locking mechanism 8 work together to lock or release the positioning rod 9 inside the sleeve 1. The shaft head 84 in the locking mechanism 8 penetrates the wall of the push cylinder 2 and is fixed by a nut 83. The bushing 84 located on the inner wall of the push cylinder 2 is connected to the arc-shaped clamp 85 via a shaft rod (not shown in the figure). The upper and lower parts of the curved clamp 85 body have outward arc angles of at least 15 degrees. The arc angles facilitate the up-and-down swing of the curved clamp 85, thereby driving the locking plate 82 to lock and release. The curved clamp 85 is used for adjusting the up-and-down angle, while the locking plate 82 is fixed to the upper part of the curved clamp 85 body. The locking plate 82 is semi-arc and used to lock the positioning rod 9. The lower rod 86 is fixed to the lower part of the curved clamp 85 body. An elongated through hole 88 is provided laterally on the lower rod 86 body. A movable shaft 89 is adapted to be installed in the elongated through hole 88. The movable shaft 89 moves up and down within the elongated through hole 88. A connecting rod 87 is fixed to one end of the movable shaft 89, and the movable shaft 89 drives the connecting rod 87 to move up and down. A movable top plate 81 is fixed to the bottom surface of the connecting rod 87. The gap between the movable top plate 81 and the inner peripheral wall of the pushing cylinder 2 is at least 0.5 cm. This gap facilitates the displacement of the movable top plate 81 under the action of the movable shaft 89. Two sets of locking mechanisms 8 are symmetrically arranged on the body, and these two sets are used to clamp the upper part of the positioning rod 9. The clamping and releasing areas formed by the two sets of locking plates 82 are adapted to the outer diameter of the positioning rod 9, thereby ensuring the installation and ejection of the positioning rod 9, while preventing the positioning rod 9 from rotating. The positioning device has a simple structure, is easy to carry, and can be operated by a single person. The positioning rod 9 is displaced upward by pressing the movable top plate 81, causing the arc-shaped clamp 85 to swing at an angle, which in turn drives the locking plate 82 to clamp the positioning rod 9. The locking mechanism 8 adaptively locks the positioning rod 9 to prevent the positioning rod from rotating and moving when pressed down, which would affect the measurement accuracy.

[0035] In this embodiment, as Figure 8 As shown, two symmetrical sliding grooves 11 are provided on the inner wall of the sleeve 1 body. The nut 83 slides within the sliding grooves 11 to prevent the locking mechanism 8 from rotating. The sliding grooves 11 on the inner wall of the sleeve 1, with the nut 83 sliding within them, prevent the locking mechanism 8 from rotating and simultaneously limit the rotation of the push cylinder 2, further improving the accuracy of the installation orientation and reducing the installation orientation deviation of the positioning rod 9.

[0036] In this embodiment, as Figure 2 As shown, a positioning seat 4 is fixed to the bottom end face of the sleeve 1 body, and positioning pins 6 are set at the four corners of the bottom surface of the positioning seat 4 body; at least one set of reinforcing ribs 5 are symmetrically fixed to the upper surface of the positioning seat 4 body and the surface of the sleeve 1. The inner diameter of the inner cavity of the sleeve 1 body is the same as the inner diameter of the through hole 7 penetrating in the positioning seat 4; specifically, the positioning seat 4 is fixed to the bottom end face of the sleeve 1, and positioning pins 6 are set at the four corners of the bottom surface of the positioning seat 4 body. The positioning pins 6 are used for positioning and fixing the locator, and the reinforcing ribs 5 are set on the upper surface of the positioning seat 4 body and the surface of the sleeve 1 to increase the connection strength between the positioning seat 4 and the sleeve 1. The inner diameter of the inner cavity of the sleeve 1 body and the inner diameter of the through hole 7 penetrating in the positioning seat 4 are the same, which facilitates the installation and ejection of the positioning rod 9.

[0037] This utility model also provides the working principle of a portable land surveying point locator: The user first selects the positioning point of the positioning rod 9, then vertically presses the lower part of the positioning rod 9 against the ground. Next, the upper part of the positioning rod 9 is installed inside the sleeve 1. Inside the sleeve 1, the movable top plate 81 in the locking mechanism 8 at the bottom of the pushing cylinder 2 is subjected to the upward pressure of the positioning rod 9 itself. The movable top plate 81 moves upward, causing the movable shaft 89 to move within the elongated through hole 88. The movable shaft 89 then causes the arc-shaped clamp 85 to swing forward. The positioning rod 9 is clamped by the locking plate 82. The user holds the handle 3 and presses down the push cylinder 2. The push cylinder 2 moves down along the sliding groove 11 inside the sleeve 1. The user's downward pressure presses the positioning rod 9 down and fixes it to the ground. When the user pulls the push cylinder 2 and the sleeve 1 upward, the movable top plate 81 is not subjected to any force. At this time, the locking plate 82 swings backward to release the positioning rod 9 and quickly exits. The positioning device in this utility model is lightweight and low in cost. It can be operated by a single person, which greatly improves convenience and surveying efficiency.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable land surveying pinpoint device, characterized in that: Includes a sleeve (1), a fitted push cylinder (2) inside the sleeve (1), a handle (3) on the top of the push cylinder (2) body, and a locking mechanism (8) at the bottom of the push cylinder (2) body. The locking plate (82) and the movable top plate (81) in the locking mechanism (8) work together to lock or release the positioning rod (9).

2. The portable land surveying point locator according to claim 1, characterized in that: The locking mechanism (8) also includes a shaft head (84), an arc-shaped clamp (85), a lower rod (86), a connecting rod (87), an elongated through hole (88), a movable shaft (89), and a nut (83); the shaft head (84) penetrates the push cylinder (2) and is fixed by the nut (83).

3. The portable land surveying point locator according to claim 2, characterized in that: The shaft head (84) body is connected to the arc-shaped clamp (85) via a shaft rod. The upper part of the arc-shaped clamp (85) body is provided with a locking plate (82), and the lower part of the arc-shaped clamp (85) body is provided with a lower rod (86). The lower rod (86) body is provided with a long through hole (88). A movable shaft rod (89) is adapted to be provided in the long through hole (88). A connecting rod (87) is provided at one end of the movable shaft rod (89) body. The bottom of the connecting rod rod (87) body is fixed on the movable top plate (81).

4. The portable land surveying point locator according to claim 3, characterized in that: The arc angle of the upper and lower parts of the arc clamp (85) body is at least 15 degrees.

5. The portable land surveying point locator according to claim 1, characterized in that: The gap between the inner peripheral wall of the push cylinder (2) and the movable top plate (81) body is at least 0.5cm.

6. The portable land surveying pinpoint device according to claim 2, characterized in that: The locking mechanism (8) consists of two sets, which are symmetrically arranged to clamp the upper part of the positioning rod (9).

7. The portable land surveying point locator according to claim 1, characterized in that: The locking plate (82) body is an arc shape, and its shape is adapted to clamp the positioning rod (9).

8. The portable land surveying point locator according to claim 1, characterized in that: Two sliding grooves (11) are symmetrically arranged on the inner wall of the sleeve (1). The sliding grooves (11) are adapted to the sliding of the nut (83) to prevent the locking mechanism (8) from rotating.

9. A portable land surveying pinpoint device according to claim 1, characterized in that: The bottom end face of the sleeve (1) is fixed with a positioning seat (4), and positioning nails (6) are set at the four corners of the bottom face of the positioning seat (4); at least one set of reinforcing ribs (5) are fixed symmetrically on the upper surface of the positioning seat (4) and the surface of the sleeve (1).

10. A portable land surveying point locator according to claim 1, characterized in that: The inner diameter of the inner cavity of the sleeve (1) is the same as the inner diameter of the through hole (7) in the positioning seat (4).

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