Distance measuring scale for engineering surveying and mapping

Abstract

The utility model discloses and provides an engineering surveying and mapping distance measuring scale, which comprises a shell, a measuring scale is wound on the inner wall of the shell, two groups of grooves are formed in the outer surface of one side of the shell, a plurality of groups of first circular plates are fixedly arranged in the two groups of grooves, one sides of the plurality of groups of first circular plates are connected with dampers, and the dampers are connected with the first circular plates. The first circular plate is connected with a damper, one end of the damper is connected with a second circular plate, one end of the second circular plate is connected with a buffer block, a spring is connected between the second circular plate and the first circular plate, the outer end of the buffer block is in an arc shape, and the outer surface of the buffer block is wrapped with rubber. When the measuring scale is recycled and is in contact with the buffer block, the damper can slow down the movement speed of the measuring scale, and meanwhile, the spring can absorb energy generated by collision, so that the collision force between the measuring scale and the shell is effectively reduced, and the risk that the measuring scale is damaged due to collision is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering measuring rulers, in particular to an engineering surveying and mapping distance measuring ruler. Background Art

[0002] In the field of engineering surveying, distance measuring rulers are indispensable tools for accurately measuring and marking various distances. However, existing engineering surveying and mapping distance measuring rulers have some problems in design and use, especially in the process of ruler recovery. Specifically, existing measuring rulers usually include a housing and a retractable ruler, which can be extended or retracted from the housing by sliding or winding.

[0003] During the ruler recycling process, due to improper operation or design defects, one end of the ruler is often prone to collide with a part of the casing. This collision will cause damage to the end of the ruler or the scale on the ruler, and in serious cases, even cause the ruler to break, thus affecting the measurement accuracy and the service life of the measuring ruler. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of the utility model is to provide an engineering surveying and mapping distance measuring ruler to solve the problems raised in the above background.

[0006] (II) Technical solution

[0007] An engineering surveying and mapping distance measuring ruler comprises a shell, the inner wall of which is rolled up with a measuring ruler, two groups of grooves are opened on the outer surface of one side of the shell, and multiple groups of first circular plates are fixedly installed in both groups of grooves, one side of the multiple groups of first circular plates is connected to a damper, and one end of the damper is connected to a second circular plate, one end of the second circular plate is connected to a buffer block, and a spring is connected between the second circular plate and the first circular plate, the outer end of the buffer block is arc-shaped, and the outer surface of the buffer block is wrapped with rubber.

[0008] Preferably, one end of the measuring ruler is connected to a limit hanging plate, and a limit groove is provided on one side of the limit hanging plate, sliding grooves are provided on both sides of the limit hanging plate, and two sets of adjustment plates are movably installed in the limit groove on one side of the limit hanging plate.

[0009] Preferably, sliders are fixedly mounted on both sides of the two groups of adjustment plates, and the sliders are movably mounted in the inner wall of the slide groove.

[0010] Preferably, magnetic blocks are fixedly mounted on the upper and lower outer surfaces of the slider.

[0011] Preferably, mounting grooves are provided on the outer surfaces of both sides of the sliding block, and a plurality of sets of rotating rollers are movably installed in the mounting grooves.

[0012] Preferably, an abutment block is fixedly mounted on the outer surface of one side of the two groups of adjustment plates, and the outer surface of the abutment block is serrated.

[0013] Preferably, the outer surface of the abutment block is wrapped with rubber.

[0014] It can be seen from the above technical solutions that the present application has the following beneficial effects:

[0015] 1. The utility model introduces a buffer mechanism consisting of a damper and a spring. When the measuring ruler is retracted and contacts the buffer block, the damper can slow down the movement speed of the measuring ruler, and the spring can absorb the energy generated by the collision, effectively reducing the collision force between the measuring ruler and the housing, thereby significantly reducing the risk of damage to the measuring ruler due to collision.

[0016] 2. The utility model adopts the arc-shaped design of the outer end of the buffer block to ensure that the measuring ruler can smoothly contact the buffer block when it is recovered, avoiding collision with sharp edges and further improving the stability of the measuring ruler. At the same time, the rubber-wrapped buffer block increases the friction between the measuring ruler and the measuring ruler, so that the measuring ruler can be recovered more stably and reduce shaking and jitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the utility model;

[0019] Figure 3 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0021] Figure 5 For this utility model Figure 2 Enlarged schematic diagram at point C in the middle.

[0022] In the figure: 1, housing; 2, measuring ruler; 3, buffer block; 4, limit hanging plate; 5, adjustment plate; 7, abutment block; 8, slider; 9, magnetic block; 411, slide groove; 311, first circular plate; 312, second circular plate; 313, damper; 314, spring; 911, rotating roller. DETAILED DESCRIPTION

[0023] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0024] See also Figure 1-5 , an embodiment provided by the utility model:

[0025] A distance measuring ruler for engineering surveying and mapping comprises a shell 1, an inner wall of which is rolled up a measuring ruler 2, two groups of grooves are provided on an outer surface of one side of the shell 1, and a plurality of groups of first circular plates 311 are fixedly installed in both groups of grooves, a damper 313 is connected to one side of the plurality of first circular plates 311, and a second circular plate 312 is connected to one end of the damper 313, a buffer block 3 is connected to one end of the second circular plate 312, and a spring 314 is connected between the second circular plate 312 and the first circular plate 311, the outer end of the buffer block 3 is in an arc shape, and the outer surface of the buffer block 3 is wrapped with rubber.

[0026] Furthermore, one end of the measuring ruler 2 is connected to a limit hanging plate 4, and a limit groove is provided on one side of the limit hanging plate 4, and sliding grooves 411 are provided on both sides of the limit hanging plate 4. Two sets of adjustment plates 5 are movably installed in the limit groove on one side of the limit hanging plate 4. The two sets of adjustment plates 5 can adjust the upper and lower distances of the limit hanging plate 4, so that the measuring ruler 2 can more easily hang one end of the measured object.

[0027] Furthermore, sliders 8 are fixedly installed on both sides of the two groups of adjustment plates 5, and the sliders 8 are movably installed in the inner wall of the slide groove 411. The coordinated use of the sliders 8 and the slide groove 411 makes the adjustment plate 5 more stable when adjusting the position, and also ensures that the adjustment plate 5 will not move accidentally when it is in a fixed position, thereby ensuring the stability and reliability of the measurement.

[0028] Furthermore, magnetic blocks 9 are fixedly installed on the upper and lower outer surfaces of the slider 8. The introduction of the magnetic blocks 9 can ensure that the slider 8 slides more stably in the slide groove 411. When the slider 8 moves to the appropriate position, the magnetic blocks 9 can generate magnetic attraction with one end of the slide groove 411, helping to fix the position of the slider 8 and prevent it from accidentally sliding, thereby improving the accuracy and stability of the measurement.

[0029] Furthermore, mounting grooves are provided on the outer surfaces of both sides of the slider 8, and multiple sets of rotating rollers 911 are movably installed in the mounting grooves. By providing mounting grooves on the outer surfaces of both sides of the slider 8 and movably installing multiple sets of rotating rollers 911 therein, the friction resistance of the slider 8 when sliding in the slide groove 411 can be greatly reduced, making the sliding smoother.

[0030] Furthermore, an abutment block 7 is fixedly mounted on the outer surface of one side of the two sets of adjustment plates 5, and the outer surface of the abutment block 7 is serrated, and the abutment block 7 can increase the friction between the adjustment plate 5 and the measuring ruler or other contact surface. This design helps to fix the position of the adjustment plate 5 during the adjustment process to prevent it from accidentally sliding, thereby improving the accuracy and stability of the measurement.

[0031] Furthermore, the outer surface of the abutment block 7 is wrapped with rubber, which has good elasticity and wear resistance. This can not only protect the abutment block 7 from being easily damaged, but also prevent scratches with the measuring ruler or other contact surfaces during the adjustment process, thereby protecting the surface of the measuring ruler and other equipment.

[0032] Working principle: The measuring ruler 2 is usually rolled up inside the housing 1. When measurement is required, the measuring ruler 2 can be pulled out of the housing 1. When the measuring ruler 2 is completely used and needs to be returned to the housing 1, the buffer block 3 and its connecting mechanism play a key protective role. The buffer block 3 is connected to the damper 313 through the second circular plate 312, and the other end of the damper 313 is connected to the first circular plate 311 fixed in the groove. The damper 313 is a device that can slow down the movement speed. When the measuring ruler 2 is recovered, it can consume the kinetic energy generated when the ruler is recovered through the flow of the damping medium inside it, thereby reducing the collision force between the ruler and the housing 1. The spring 314 is connected between the first circular plate 311 and the second circular plate 312. When the measuring ruler 2 contacts the buffer block 3, the spring 314 will be compressed to further absorb the energy generated by the collision, and further reduce the damage to the measuring ruler 2 caused by the collision. The outer end of the buffer block 3 is in an arc shape. Such a design can ensure that the measuring ruler 2 can smoothly contact the buffer block 3 when it is recovered, rather than colliding with the sharp edge of the buffer block 3. At the same time, the outer surface of the buffer block 3 is wrapped with rubber, which has good elasticity and buffering performance, can further reduce the noise generated during the collision, and also increase the friction between the buffer block 3 and the measuring ruler 2, so that the measuring ruler 2 can be recovered more stably.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An engineering surveying and mapping distance measuring ruler, comprising a housing (1), wherein a measuring ruler (2) is rolled up on the inner wall of the housing (1), characterized in that: Two groups of grooves are provided on the outer surface of one side of the housing (1), and a plurality of groups of first circular plates (311) are fixedly installed in both groups of grooves; a damper (313) is connected to one side of the plurality of first circular plates (311), and one end of the damper (313) is connected to a second circular plate (312); one end of the second circular plate (312) is connected to a buffer block (3), and a spring (314) is connected between the second circular plate (312) and the first circular plate (311); the outer end of the buffer block (3) is in an arc shape, and the outer surface of the buffer block (3) is wrapped with rubber.

2. The engineering surveying and mapping distance measuring ruler according to claim 1, characterized in that: One end of the measuring ruler (2) is connected to a limit hanging plate (4), and a limit groove is provided on one side of the limit hanging plate (4), and sliding grooves (411) are provided on both sides of the limit hanging plate (4), and two groups of adjustment plates (5) are movably installed in the limit groove on one side of the limit hanging plate (4).

3. The engineering surveying and mapping distance measuring ruler according to claim 2, characterized in that: Slide blocks (8) are fixedly mounted on both sides of the two groups of adjustment plates (5), and the slide blocks (8) are movably mounted in the inner wall of the slide groove (411).

4. The engineering surveying and mapping distance measuring ruler according to claim 3, characterized in that: Magnetic blocks (9) are fixedly mounted on the upper and lower outer surfaces of the sliding block (8).

5. The engineering surveying and mapping distance measuring ruler according to claim 3, characterized in that: The outer surfaces of both sides of the sliding block (8) are provided with mounting grooves, and a plurality of sets of rotating rollers (911) are movably mounted in the mounting grooves.

6. The engineering surveying and mapping distance measuring ruler according to claim 2, characterized in that: An abutment block (7) is fixedly mounted on the outer surface of one side of the two groups of adjustment plates (5), and the outer surface of the abutment block (7) is serrated.

7. The engineering surveying and mapping distance measuring ruler according to claim 6, characterized in that: The outer surface of the abutment block (7) is wrapped with rubber.

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