Surveying and mapping ruler for surveying and mapping

Abstract

The utility model discloses a surveying and mapping ruler for surveying and mapping, which relates to the field of telemeter rods for surveying and mapping and comprises a telemeter rod formed by a plurality of sleeved rulers, pushing mechanisms are distributed on the two sleeved rulers, and clamping mechanisms are distributed on the two sleeved rulers. The clamping mechanism and the pushing mechanism are distributed at the two ends of the two sleeve rulers which are connected in a sleeved mode, the pushing mechanism comprises a containing groove formed in the top end of the inner wall of the sleeve ruler located on the outer side, and a protruding shaft protruding downwards is integrally formed at the top end of the inner wall of the containing groove; the bottom end of the protruding shaft extends to the position below the containing groove, and an anti-disengaging shaft is integrally formed at the bottom end of the protruding shaft. According to the utility model, through the arrangement of the pushing mechanism, the inner sleeve ruler can be effectively pushed to slide downwards under the condition that the inner sleeve ruler is not completely unfolded, so that a worker can quickly notice that the inner sleeve ruler is not completely unfolded, and the problem of measurement errors caused by the fact that the inner sleeve ruler is not completely unfolded can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of surveying rods, specifically a surveying rod for surveying. Background Technology

[0002] There are many types of measuring rods used in surveying, one of which is the leveling rod. The leveling rod has a multi-layered interlocking structure, consisting of multiple interlocking measuring rods 1.

[0003] When using a leveling rod, it needs to be unfolded. When unfolding, it is necessary to pay attention to whether the inner sleeve is fully unfolded to avoid measurement errors. However, this requires surveyors to observe independently, and there are still measurement errors that can be caused by the operation process. Utility Model Content

[0004] The purpose of this utility model is to provide a surveying ruler for surveying in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a surveying ruler for surveying, comprising a tower ruler composed of multiple interlocking rulers, with a pushing mechanism distributed on two interlocking rulers and a locking mechanism distributed on two interlocking rulers. The locking mechanism and the pushing mechanism are located at both ends of the two interlocking rulers. The pushing mechanism includes a receiving groove formed at the top of the inner wall of the outer ruler. The top of the inner wall of the receiving groove has a downwardly protruding shaft integrally formed. The bottom end of the protruding shaft extends to the bottom of the receiving groove, and the bottom end of the protruding shaft has an anti-detachment shaft integrally formed. The diameter of the anti-detachment shaft is larger than the diameter of the protruding shaft.

[0006] As a further embodiment of this utility model: the pushing mechanism further includes a pressure plate that is slidably connected to the outer wall of the protruding shaft. The outer diameter of the pressure plate is equal to the inner diameter of the receiving groove. A pushing spring is abutted between the top end of the pressure plate and the bottom end of the inner wall of the receiving groove. The pushing spring is sleeved on the outer periphery of the protruding shaft.

[0007] As a further embodiment of this utility model: a circular hole is provided on one side of the bottom plate of the inner sleeve that is fitted with the outer sleeve. The circular hole is aligned with the anti-slip shaft in the vertical direction. The inner diameter of the circular hole is equal to the outer diameter of the anti-slip shaft. The circular hole is opened vertically.

[0008] As a further embodiment of this utility model: the snap-fit ​​mechanism includes a second sliding groove opened inside the outer end plate of the scale, a button is slidably connected to the inner wall of the second sliding groove, and a compression spring is fixedly connected between the protrusion of the button and one end of the inner wall of the second sliding groove.

[0009] As a further embodiment of this utility model: the snap-fit ​​mechanism further includes a first sliding groove opened on the other side of the bottom plate of the inner sleeve ruler. The first sliding groove is opened laterally, and a buckle is slidably connected to the inner wall of the first sliding groove. A return spring is fixedly installed between one end of the buckle and the closed end of the first sliding groove.

[0010] As a further embodiment of this utility model: the bottom end of the buckle is integrally formed with two connecting ears, and a roller is rotatably installed between the two connecting ears. The end of the buckle located outside the first sliding groove is formed with an inclined surface that slopes downward and outward, and the roller is located at the lowest point of the inclined surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a pushing mechanism, the inner measuring tape can be effectively pushed downwards when it is not fully extended, so that the staff can quickly notice that the inner measuring tape is not fully extended, which can effectively avoid measurement errors caused by the inner measuring tape not being fully extended. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0016] Figure 4 For the present utility model Figure 2 Enlarged view of a section at point B in the middle;

[0017] Figure 5 This is a schematic diagram of the installation of the roller of this utility model.

[0018] In the diagram: 1. Sleeve; 2. Receiving groove; 3. Protruding shaft; 4. Anti-detachment shaft; 5. Push spring; 6. Pressure plate; 7. Round hole; 8. No. 1 slide groove; 9. Buckle; 10. Return spring; 11. No. 2 slide groove; 12. Button; 13. Compression spring; 14. Connecting ear; 15. Roller. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5 In this embodiment of the present invention, a surveying ruler for surveying includes a tower ruler composed of multiple interlocking rulers 1. A pushing mechanism is distributed on two interlocking rulers 1, and a locking mechanism is distributed on two interlocking rulers 1. The locking mechanism and the pushing mechanism are distributed at both ends of the two interlocking rulers 1. The pushing mechanism includes a receiving groove 2 opened at the top of the inner wall of the outer ruler 1. A downwardly protruding shaft 3 is integrally formed at the top of the inner wall of the receiving groove 2. The bottom end of the protruding shaft 3 extends to the bottom of the receiving groove 2, and an anti-detachment shaft 4 is integrally formed at the bottom end of the protruding shaft 3. The diameter of the anti-detachment shaft 4 is larger than the diameter of the protruding shaft 3.

[0021] In this embodiment: when the scale 1 is pulled to open the scale, the inner scale 1 moves upward until the bottom plate of the inner scale 1 contacts the pushing mechanism. Part of the locking mechanism on the inner scale 1 aligns with another part of the locking mechanism on the outer scale 1. At this time, the pushing mechanism cannot push the bottom plate of the inner scale 1 downward. If the inner scale 1 is not fully unfolded, the two locking mechanisms cannot be connected. At this time, the pushing mechanism will generate a reaction force to push the bottom plate of the inner scale 1 downward. At this time, the inner scale 1 slides downward on its own, avoiding the measurement error caused by the inner scale 1 not being fully unfolded and not sliding downward.

[0022] Please refer to this carefully. Figure 2 and Figure 3 The pushing mechanism also includes a pressure plate 6 that slides up and down on the outer wall of the protruding shaft 3. The outer diameter of the pressure plate 6 is equal to the inner diameter of the receiving groove 2. A pushing spring 5 is abutted between the top of the pressure plate 6 and the bottom of the inner wall of the receiving groove 2. The pushing spring 5 is sleeved on the outer periphery of the protruding shaft 3. A round hole 7 is opened on one side of the bottom plate of the inner sleeve 1 that is sleeved with the outer sleeve 1. The round hole 7 is aligned with the anti-detachment shaft 4 in the vertical direction. The inner diameter of the round hole 7 is equal to the outer diameter of the anti-detachment shaft 4. The round hole 7 is opened vertically.

[0023] In this embodiment: as the inner sleeve 1 moves upward, the bottom plate of the inner sleeve 1 gradually approaches the pressure plate 6 until the two contact and are squeezed. The pressure plate 6, under force, moves along the outer wall of the protruding shaft 3 and squeezes the push spring 5. At this time, the push spring 5 is compressed until the two parts of the locking mechanism are engaged. If the inner sleeve 1 is not fully unfolded, that is, the two parts of the locking mechanism are not effectively engaged, the push spring 5 is reset and pushes the bottom plate of the inner sleeve 1. At this time, the inner sleeve 1 slides down to reset, and the operator can know that there will be no problem of incorrect measurement.

[0024] Please refer to this carefully. Figure 2 and Figure 4 The locking mechanism includes a second slide groove 11 located inside the end plate of the outer sleeve ruler 1. A button 12 is slidably connected to the inner wall of the second slide groove 11. A compression spring 13 is fixedly connected between the protrusion of the button 12 and one end of the inner wall of the second slide groove 11. The locking mechanism also includes a first slide groove 8 located on the other side of the bottom end plate of the inner sleeve ruler 1. The first slide groove 8 is opened laterally. A buckle 9 is slidably connected to the inner wall of the first slide groove 8. A return spring 10 is fixedly installed between one end of the buckle 9 and the closed end of the first slide groove 8.

[0025] In this embodiment: During the upward movement of the inner sleeve 1 and in the fully open state, the first slide 8 and the second slide 11 are aligned horizontally. The return spring 10, which is in a compressed state, pushes the buckle 9 to move outward. The buckle 9 is inserted into the second slide 11, and the buckle 9 pushes the button 12 to slide in the second slide 11. At this time, the compression spring 13 is compressed until the buckle 9 is fully popped out. At this time, the end of the button 12 away from the buckle 9 is flush with the outer wall of the outer sleeve 1.

[0026] When the measuring rod is finished and is being retracted, press one end of button 12 with a tool. Button 12 will be reset by force, and button 12 will push the buckle 9 out of the second slide groove 11. At this time, the pushing mechanism will be reset, and the pushing mechanism can push the inner sleeve 1 downward to reset.

[0027] It should be noted that when the button 12 is pushed to reset, the maximum position that the button 12 can move is the edge of the inner opening of the second slide groove 11, so as to avoid overlapping with the bottom plate of the inner sleeve 1, which would prevent the inner sleeve 1 from being unable to reset downwards.

[0028] Please refer to this carefully. Figure 5 The bottom end of the buckle 9 is integrally formed with two connecting ears 14. A roller 15 is rotatably installed between the two connecting ears 14. The end of the buckle 9 located outside the first slide groove 8 is formed with a slope that slopes downward and outward. The roller 15 is located at the lowest point of the slope.

[0029] In this embodiment, the roller 15 reduces the friction between the buckle 9 and the outer sleeve 1, making it easier for the pushing mechanism to push the inner sleeve 1 to slide downwards and reset.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surveying tape for surveying, comprising a tower of a plurality of mutually telescopically connected tape sections (1), characterized in that, Two mutually sleeved said sleeve (1) distributed with push mechanism, two mutually sleeved said sleeve (1) distributed with clamping mechanism, the clamping mechanism and the push mechanism are distributed in both ends of the two sleeve said sleeve (1), the push mechanism includes the accommodating groove (2) opened in the top end of the inner wall of the sleeve (1) located on the outside, the inner wall of the accommodating groove (2) is integrally formed with the downward protruding protruding shaft (3), the bottom end of the protruding shaft (3) extends below the accommodating groove (2), and the bottom end of the protruding shaft (3) is integrally formed with the anti-dropping shaft (4), the diameter of the anti-dropping shaft (4) is greater than the diameter of the protruding shaft (3).

2. The surveying scale according to claim 1, wherein The push mechanism further comprises a pressure plate (6) slidingly connected to the outer wall of the protruding shaft (3), the outer diameter of the pressure plate (6) is equal to the inner diameter of the accommodating groove (2), a push spring (5) is abutted between the top end of the pressure plate (6) and the bottom end of the inner wall of the accommodating groove (2), and the push spring (5) is sleeved on the outer periphery of the protruding shaft (3).

3. The surveying scale according to claim 2, wherein, The bottom plate of the inner side sleeve (1) sleeved with the outer side sleeve (1) is provided with a circular hole (7) on one side, the circular hole (7) is aligned with the anti-dropping shaft (4) in the vertical direction, the inner diameter of the circular hole (7) is equal to the outer diameter of the anti-dropping shaft (4), and the circular hole (7) is vertically provided.

4. The surveying scale according to claim 1, wherein, The clamping mechanism comprises a No. 2 sliding groove (11) provided in the end plate of the sleeve (1) located on the outside, a button (12) is slidingly connected to the inner wall of the No. 2 sliding groove (11), and a compression spring (13) is fixedly connected between the protruding part of the button (12) and one end of the inner wall of the No. 2 sliding groove (11).

5. The surveying scale according to claim 4, wherein, The clamping mechanism further comprises a No. 1 sliding groove (8) provided on the other side of the bottom plate of the inner side sleeve (1), the No. 1 sliding groove (8) is horizontally provided, a buckle (9) is slidingly connected to the inner wall of the No. 1 sliding groove (8), and a return spring (10) is fixedly installed between one end of the buckle (9) and the closed end of the No. 1 sliding groove (8).

6. The plotting scale of claim 5 wherein, The bottom end of the buckle (9) is integrally formed with two connecting ears (14), a roller (15) is rotatably installed between the two connecting ears (14), one end of the buckle (9) located outside the No. 1 sliding groove (8) is formed with an inclined surface inclined downward and outward, and the roller (15) is located at the lowest point of the inclined surface.

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