Telescopic measuring marker post for real estate surveying and mapping
By designing a sliding connection and limiting mechanism within the rod body, the problem of low efficiency in adjusting the length of existing measuring rods is solved, enabling rapid extension and retraction and stable suspension, thereby improving work efficiency and measurement accuracy.
Patent Information
- Application Number
- CN202520097793.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing measuring rods require tools to tighten bolts when adjusting their length, which increases the operation time and reduces work efficiency.
The pole features a sliding connection design within its body. Through a limiting mechanism and protective components, the pole can be quickly extended or retracted by using a button to operate the transmission rod and release the locking slot of the limiting plate. Combined with the sliding rod and pull rod design of the auxiliary components, the pole can be easily suspended and stored.
It improves operational efficiency, ensures the accuracy of measurement data and the stability of the benchmark, reduces maintenance costs, and expands adaptability in complex environments.
Smart Images

Figure CN223796037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measurement benchmarks, and in particular to a telescopic measurement benchmark for real estate surveying. Background Technology
[0002] In the field of real estate surveying, accurate measurement work is the foundation for ensuring the smooth progress of key tasks such as rational planning of land resources and clear definition of property rights. With the continuous development of the social economy, the working environment of real estate surveying is becoming increasingly complex and diverse, and the requirements for surveying tools are also increasing.
[0003] As an indispensable tool in real estate surveying, measuring benchmarks provide surveyors with accurate vertical references and distance comparison standards, helping them obtain height and spacing information of key parts such as building exterior walls, doors and windows, and providing crucial basic data for urban planning, real estate construction and renovation.
[0004] Existing measuring rods typically use bolts and nuts for fastening. For example, Chinese Patent Publication No. CN220418470U discloses a portable measuring rod for real estate surveying. Each time the rod length is adjusted, the operator must use the corresponding tools to tighten the bolts. In measurement operations where the rod length is frequently adjusted, the operation time is increased, thereby reducing work efficiency. To address this issue, a telescopic measuring rod for real estate surveying is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a telescopic measuring rod for real estate surveying, which aims to improve the problem in the prior art that "when adjusting the length of the rod, operators must use corresponding tools to tighten the bolts, which increases the operation time and reduces work efficiency".
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a telescopic measuring pole for real estate surveying, comprising a pole body one, a pole body two slidably connected to the inner wall of the pole body one, a sleeve one provided on the right side of the pole body one, the pole body two slidably on the outside of the sleeve one, a sleeve two provided on the right side of the pole body two, a pole body three slidably connected to the inner side of the pole body two and the sleeve two, a top plate fixedly connected to the right side of the pole body three, a limiting mechanism provided on the inner wall of the sleeve one, the limiting mechanism including a limiting component and a protective component, the limiting component including a transmission rod, the transmission rod slidably connected to the inner wall of the sleeve one, a baffle fixedly connected to the outside of the transmission rod, a button fixedly connected to the upper part of the transmission rod, the lower part of the baffle elastically connected to the inner wall of the sleeve one by a compression spring, a limiting plate fixedly connected to the lower part of the transmission rod, a slot provided at the lower part of the pole body two, and the limiting plate inserted into the inner wall of the slot.
[0007] As a further description of the above technical solution:
[0008] The protective component includes a protective plate, which is fixedly connected to the outer side of the pole. There are two sets of protective plates, which are respectively located on the front and rear sides of the pole. The protective plates are made of rubber.
[0009] As a further description of the above technical solution:
[0010] The transmission rod is configured in an L-shape.
[0011] As a further description of the above technical solution:
[0012] The upper part of the limiting plate is designed with a square protrusion.
[0013] As a further description of the above technical solution:
[0014] Marking rulers are installed on the upper sides of rod one, rod two and rod three.
[0015] As a further description of the above technical solution:
[0016] The upper parts of the first and second sockets are provided with notches, and the upper parts of the second and third rods are recessed.
[0017] As a further description of the above technical solution:
[0018] An auxiliary component is provided on the inner wall of the top plate. The auxiliary component includes a sliding rod, which is slidably connected to the inner wall of the top plate. There are two sets of sliding rods. A limiting plate is slidably connected to the inner wall of the top plate. A limiting groove is opened on the left side of the limiting plate, and an interlocking groove is opened on the right side of the sliding rod. The limiting groove is inserted into the inner wall of the interlocking groove.
[0019] As a further description of the above technical solution:
[0020] A pull rod is fixedly connected to the right side of the limiting plate. The pull rod slides through the inner wall of the top plate. The inner wall of the right side of the limiting plate and the inner wall of the sliding rod are elastically connected by a return spring.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by using the rod body, the sleeve and the limiting mechanism together, when the rod body needs to be extended or retracted, the user presses two sets of buttons to drive the transmission rod to move downward, so that the limiting plate slides out of the inner wall of the slot, quickly releasing the limitation on the rod body, thereby extending and fixing the rod body. Compared with bolt fixing, it saves operation time and improves work efficiency.
[0023] 2. In this utility model, by using the auxiliary components and the top plate together, when using the measuring rod, the limit on the sliding rod is released by pulling the pull rod, so that the sliding rod slides out of the inner wall of the top plate. The measuring rod can be hung on the position to be measured, which improves the practicality of the device. At the same time, it can be stored, making it convenient to carry and transport. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0025] Figure 2 This is a three-dimensional structural diagram of the disassembled rod body one and rod body two in this utility model, viewed from below.
[0026] Figure 3 This is a right-side three-dimensional cross-sectional view of the socket component one in this utility model;
[0027] Figure 4 This is a top view of the three-dimensional structure of the top plate of this utility model.
[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the limiting plate in this utility model.
[0029] Legend:
[0030] 1. Rod body one; 2. Sleeve one; 3. Rod body two; 4. Sleeve two; 5. Rod body three; 61. Transmission rod; 62. Baffle plate; 63. Compression spring; 64. Limiting plate; 65. Slot; 66. Button; 7. Top plate; 71. Sliding rod; 72. Limiting plate; 73. Pull rod; 74. Return spring; 75. Limiting groove; 76. Fitting groove; 8. Protective plate. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of a telescopic surveying pole for real estate mapping, comprising a pole body 1, a pole body 3 slidably connected to the inner wall of the pole body 1, and a plastic sleeve 2 on the right side of the pole body 1, which mainly serves to connect the pole body 1 and the pole body 3, providing stable guidance and support for the sliding of the pole body 3. The pole body 3 slides outside the sleeve 2. A second sleeve 4 is provided on the right side of the pole body 3, and another set of limiting components is provided on its inner wall, which has the same effect as the sleeve 2, and controls the sliding of the pole body 3. The device provides stable guidance and support. Rod body 2 (3) and sleeve 2 (4) are slidably connected to rod body 3 (5). Rod body 1 (1), rod body 2 (3), and rod body 3 (5) together constitute the telescopic main structure of the measuring rod. A top plate 7 is fixedly connected to the right side of rod body 3 (5) to enclose the right side of rod body 2 (3). A limit mechanism is provided on the inner wall of sleeve 2 (2). The limit mechanism includes a limit component and a protective component. The limit component includes a transmission rod 61, which transmits the external force applied by the operator at button 66 to the limit plate 64. The transmission rod 61 is L-shaped.
[0033] Furthermore, the transmission rod 61 is slidably connected to the inner wall of the first sleeve 2, and a baffle 62 is fixedly connected to the outer side of the transmission rod 61, which can cooperate with the compression spring 63 to provide an upward force for the transmission rod 61 and the limiting plate 64. A button 66 is fixedly connected to the upper part of the transmission rod 61, which makes it convenient for the operator to press the transmission rod 61, saving operation time and improving work efficiency. The lower part of the baffle 62 is elastically connected to the inner wall of the first sleeve 2 through the compression spring 63. One end of the compression spring 63 is fixedly connected to the lower part of the baffle 62, and the other end is fixedly connected to the inner wall of the first sleeve 2. The initial state of the compression spring 63 is the compressed state, which ensures that the limiting plate 64 is stably inserted into the slot 65 of the second rod 3, so as to achieve reliable limiting of the second rod 3.
[0034] Furthermore, a limiting plate 64 is fixedly connected to the lower part of the transmission rod 61. The upper part of the limiting plate 64 is set as a square protrusion, which can be inserted more securely into the slot 65 of the second rod 3, effectively preventing the second rod 3 from accidentally sliding during the measurement process, ensuring the accuracy of the measured rod length, and guaranteeing the reliability of the measurement data. The lower part of the second rod 3 has a slot 65, and the limiting plate 64 is inserted into the inner wall of the slot 65. Multiple sets of slots 65 are set on the lower part of the left and right sides of the second rod 3 and the third rod 5.
[0035] Reference Figure 1 and Figure 2The protective components include protective plates 8, which are fixedly connected to the outside of pole body 1. There are two sets of protective plates 8, which are respectively set on the front and rear sides of pole body 1. The protective plates 8 are made of rubber. When the measuring pole is handled, used or stored, they can prevent the pole from being damaged by collision with other objects, protect the structural integrity of the pole, extend the service life of the measuring pole and reduce maintenance costs. The upper sides of pole body 1, pole body 2, and pole body 3 are equipped with marking rulers for accurate quantitative marking of the height or length of real estate. The upper parts of the socket 1 and socket 2 are provided with notches to prevent the marking rulers from being obstructed. The upper parts of pole body 2 and pole body 3 are recessed to prevent the marking rulers from being damaged by friction during extension and retraction.
[0036] Reference Figure 1 , Figure 4 and Figure 5 An auxiliary component is provided on the inner wall of the top plate 7. The auxiliary component includes a sliding rod 71, which is slidably connected to the inner wall of the top plate 7. There are two sets of sliding rods 71. The front side of the sliding rod 71 is bent. When it is necessary to suspend the measuring rod, by pulling the pull rod 73, the sliding rod 71 can extend out of the inner wall of the top plate 7 to find a suitable suspension point or support point and place the measuring rod stably at the position to be measured. This expands the usage of the measuring rod and improves its adaptability in complex environments. A limiting plate 72 is slidably connected to the inner wall of the top plate 7 to limit the two sets of sliding rods 71. The limiting plate 72 has a limiting groove 75 on the left side, with multiple sets symmetrically provided. It can be inserted into the inner wall of the fitting groove 76 to limit the sliding rod 71.
[0037] A fitting groove 76 is provided on the right side of the sliding rod 71, and a limiting groove 75 is inserted into the inner wall of the fitting groove 76. A pull rod 73 is fixedly connected to the right side of the limiting plate 72, which facilitates the operator to pull the limiting plate 72. The pull rod 73 slides through the inner wall of the top plate 7. The inner wall of the right side of the limiting plate 72 is elastically connected to the inner wall of the sliding rod 71 through a return spring 74. The initial state is a compressed state, which can provide pressure to the limiting plate 72, so that the limiting plate 72 can stably fit against the outside of the sliding rod 71, thereby improving its stability.
[0038] Working principle: When it is necessary to adjust the length of the measuring rod for measurement, the operator presses the two sets of buttons 66 on the sleeve 2 by hand. After the buttons 66 are subjected to force, they drive the transmission rod 61 to move downward against the elastic force of the compression spring 63. The limiting plate 64 at the lower part of the transmission rod 61 moves down accordingly, so that it slides out from the inner wall of the slot 65 at the lower part of the rod body 3, thereby quickly releasing the limitation on the rod body 3.
[0039] At this time, the operator can stretch or retract rod 3 to make it slide outside of sleeve 2. If the extension and retraction of rod 3 5 is involved, the limiting component in sleeve 2 4 works on the same principle. After the adjustment is completed, release button 66. Under the reset action of compression spring 63, transmission rod 61 moves upward and limiting plate 64 re-inserts into the corresponding slot 65 to achieve a stable lock on the rod, ensuring that the length of the rod remains constant during the measurement process and ensuring the accuracy of the measurement data.
[0040] When taking measurements and needing to attach the marker to a specific position, the operator pulls the lever 73 on the top plate 7. The lever 73 causes the limiting plate 72 to slide on the inner wall of the top plate 7, causing the limiting groove 75 on the left side of the limiting plate 72 to disengage from the fitting groove 76 on the right side of the sliding rod 71, thus releasing the limitation on the sliding rod 71. At this time, the sliding rod 71 is pulled to slide out of the inner wall of the top plate 7. Under the elastic force of the return spring 74, the limiting groove 75 on the limiting plate 72 controls the sliding rod 71.
[0041] Because the front of the sliding rod 71 is curved, the operator can hang it on a protruding part of the building or other suitable support point, so as to place the measuring rod stably at the position to be measured, which facilitates the measurement work.
[0042] 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 telescopic surveying pole for real estate surveying, comprising a pole body (1), characterized in that: The inner wall of the rod body one (1) is slidably connected with the rod body two (3), the right side of the rod body one (1) is provided with a sleeve piece one (2), the rod body two (3) slides outside the sleeve piece one (2), the right side of the rod body two (3) is provided with a sleeve piece two (4), the rod body two (3) and the inner side of the sleeve piece two (4) are slidably connected with the rod body three (5), the right side of the rod body three (5) is fixedly connected with the top plate (7), the inner wall of the sleeve piece one (2) is provided with a limiting mechanism, the limiting mechanism comprises a limiting assembly and a protection assembly, the limiting assembly comprises a transmission rod (61), the transmission rod (61) is slidably connected with the inner wall of the sleeve piece one (2), the outer side of the transmission rod (61) is fixedly connected with a baffle disc (62), the upper part of the transmission rod (61) is fixedly connected with a button (66), the lower part of the baffle disc (62) is elastically connected with the inner wall of the sleeve piece one (2) through a compression spring (63), the lower part of the transmission rod (61) is fixedly connected with a limiting plate (64), the lower part of the rod body two (3) is provided with a clamping groove (65), and the limiting plate (64) is inserted into the inner wall of the clamping groove (65).
2. A telescopic surveying pole for surveying real estate according to claim 1, characterized in that: The protection assembly comprises a protection plate (8), the protection plate (8) is fixedly connected with the outer side of the rod body one (1), the protection plate (8) is provided with two groups, and the two groups of protection plates (8) are arranged on the front and rear sides of the rod body one (1), respectively, and the protection plate (8) is made of rubber material.
3. The telescoping surveying pole of claim 1, wherein: The transmission rod (61) is provided in an L shape.
4. The telescoping surveying pole of claim 1, wherein: The upper part of the limiting plate (64) is provided in a square protruding shape.
5. The telescoping surveying pole of claim 1, wherein: The upper sides of the rod body one (1), the rod body two (3) and the rod body three (5) are provided with mark scales.
6. The telescoping surveying pole of claim 1, wherein: The upper parts of the sleeve piece one (2) and the sleeve piece two (4) are provided with notches, and the upper parts of the rod body two (3) and the rod body three (5) are provided in a recessed manner.
7. The telescoping surveying pole of claim 1, wherein: The inner wall of the top plate (7) is provided with an auxiliary assembly, the auxiliary assembly comprises a sliding rod (71), the sliding rod (71) is slidably connected with the inner wall of the top plate (7), the sliding rod (71) is provided with two groups, the inner wall of the top plate (7) is slidably connected with a limiting plate (72), the left side of the limiting plate (72) is provided with a limiting groove (75), the right side of the sliding rod (71) is provided with an embedding groove (76), and the limiting groove (75) is inserted into the inner wall of the embedding groove (76).
8. A telescopic surveying pole according to claim 7, wherein: The right side of the limiting plate (72) is fixedly connected with a pull rod (73), the pull rod (73) slides through the inner wall of the top plate (7), and the inner wall of the right side of the limiting plate (72) is elastically connected with the inner wall of the sliding rod (71) through a reset spring (74).
Citation Information
Patent Citations
Portable marker post for real estate surveying and mapping
CN220418470U