Measuring device for construction engineering technology

Abstract

The utility model discloses a constructional engineering technology measuring device, which relates to the technical field of engineering measurement, and comprises a shell, a measuring scale for measuring an object and a buffer mechanism arranged on the shell are arranged in the shell, and the buffer mechanism is used for limiting the contraction speed of the measuring scale; the buffer mechanism comprises a buffer unit and a transmission unit; the transmission unit rotates synchronously with the movement of the measuring scale in the moving process of the measuring scale; and the buffer unit is used for reducing the speed of the measuring scale in the winding process. According to the utility model, through the arrangement of the buffer mechanism, when the measuring scale shrinks along with the spring after measurement is completed, the buffer pad can enter the rubber groove by applying extrusion force to the pressing rod, so that the measuring scale is subjected to frictional resistance from the buffer pad and the rubber groove in the shrinking process, and the shrinking speed of the measuring scale is slowed down; and the danger during the contraction of the measuring scale is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering measurement, in particular to a construction engineering technical measurement device. Background Art

[0002] The measurement of buildings in a construction project can be said to be an important part that affects the quality of the entire project. It refers to the survey and design of the building's physical structure, construction and layout, installation of various equipment, and so on. The tape measure is a commonly used construction measurement tool in daily life. The tape measure can be rolled up because there is a spring inside the tape measure. When it is pulled out to measure the length, the length of the ruler and the spring is actually lengthened. Once the measurement is completed, the spring inside the tape measure will automatically shrink, and the ruler will also shrink under the action of the spring force, so the tape measure will roll up.

[0003] When the existing measuring tape is in use, a limit block is generally provided to limit the winding of the measuring tape, so that the measuring tape is kept at a certain length and cannot be wound up. However, after the limit is cancelled, the measuring tape will still automatically shrink under the action of the spring, and the shrinkage speed is relatively fast. In addition, the edge of the measuring tape is relatively sharp, and the fast winding speed will cause harm to the human body after contacting with human skin, which is dangerous. Therefore, the utility model proposes a construction engineering technology measuring device. Utility Model Content

[0004] The purpose of the utility model is to provide a construction engineering technical measurement device in order to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a construction engineering technical measuring device, comprising a housing, a measuring ruler for measuring an object is installed inside the housing, and a buffer mechanism is arranged on the housing, the buffer mechanism is used to limit the retraction speed of the measuring ruler;

[0006] The buffer mechanism includes a buffer unit and a transmission unit;

[0007] The transmission unit rotates synchronously with the movement of the measuring ruler during the movement of the measuring ruler;

[0008] The buffer unit is used to reduce the speed of the measuring ruler during the winding process.

[0009] As a further solution of the utility model: the transmission unit includes a pressing rod, a first spur gear, a second spur gear, and a rubber pad;

[0010] The pressing rod is axially slidably mounted on the outer wall of the housing and extends to the interior of the housing, and the pressing rod is used to drive the first spur gear to move synchronously;

[0011] The first spur gear is fixed to the outer wall of the pressing rod, and the first spur gear is used to drive the rotating part of the pressing rod to rotate;

[0012] The second spur gear is axially rotatably mounted inside the housing, and the second spur gear is used to drive the first spur gear to rotate;

[0013] The rubber pad is fixed to one end of the second spur gear, and the outer wall of the rubber pad is in contact with the upper surface of the measuring ruler.

[0014] As a further solution of the utility model: the buffer unit includes a buffer pad, a rubber groove, and a spring;

[0015] The buffer pad is fixed to the outer wall of the pressing rod and does not contact the first spur gear, and the buffer pad is used to cooperate with the rubber groove to reduce the moving speed of the measuring ruler;

[0016] The rubber groove is opened inside the shell, and the rubber groove is used for the buffer pad to enter;

[0017] The two ends of the spring are respectively clamped inside the shell and one end of the pressing rod, and the spring is used to provide a restoring force for the axial movement of the pressing rod.

[0018] As a further solution of the utility model: the pressing rod is divided into two parts, and the two parts of the pressing rod are rotatably connected to each other for receiving the rotational power from the second spur gear.

[0019] As a further solution of the utility model: one end of the spring connected to the pressing rod is rotatably connected via a rotating block to prevent the rotating pressing rod from affecting the spring.

[0020] As a further solution of the utility model: a movable groove for axial movement of the pressing rod is formed inside the shell, and the outer wall of the buffer pad is formed of a plurality of obliquely protruding protrusions, and the inclination direction of the plurality of protrusions is the contraction direction of the measuring ruler.

[0021] As a further solution of the utility model: the inner side of the rubber groove matches the outer wall of the buffer pad, and the inner side of the rubber groove is in a bell-mouth state.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] By providing a buffer mechanism, when the measurement is completed, the measuring ruler contracts along with the spring, and the pressing rod can be given an extruding force to make the buffer pad enter the rubber groove. During the contraction process, the measuring ruler is subjected to the friction resistance between the buffer pad and the rubber groove, thereby slowing down the contraction speed of the measuring ruler and reducing the danger of the measuring ruler when it contracts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the buffer mechanism of the utility model.

[0027] In the figure: 1. housing; 2. measuring ruler; 3. buffer mechanism; 301. pressing rod; 302. first spur gear; 303. second spur gear; 304. rubber pad; 305. buffer pad; 306. rubber groove; 307. spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 3 In an embodiment of the utility model, a construction engineering technology measuring device includes a housing 1, a measuring ruler 2 for measuring an object is installed inside the housing 1, and a buffer mechanism 3 is arranged on the housing 1, and the buffer mechanism 3 is used to limit the retraction speed of the measuring ruler 2;

[0030] The buffer mechanism 3 includes a buffer unit and a transmission unit;

[0031] The transmission unit rotates synchronously with the movement of the measuring ruler 2 during the movement of the measuring ruler 2;

[0032] The buffer unit is used to reduce the speed of the measuring ruler 2 during the winding process;

[0033] The transmission unit includes a pressing rod 301, a first spur gear 302, a second spur gear 303, and a rubber pad 304;

[0034] The pressing rod 301 is axially slidably mounted on the outer wall of the housing 1 and extends to the inside of the housing 1. The pressing rod 301 is used to drive the first spur gear 302 to move synchronously.

[0035] The first spur gear 302 is fixed to the outer wall of the pressing rod 301, and the first spur gear 302 is used to drive the rotating part of the pressing rod 301 to rotate;

[0036] The second spur gear 303 is axially rotatably mounted inside the housing 1, and the second spur gear 303 is used to drive the first spur gear 302 to rotate;

[0037] The rubber pad 304 is fixed to one end of the second spur gear 303, and the outer wall of the rubber pad 304 is in contact with the upper surface of the measuring ruler 2;

[0038] The buffer unit includes a buffer pad 305, a rubber groove 306, and a spring 307;

[0039] The buffer pad 305 is fixed to the outer wall of the pressing rod 301 and does not contact the first spur gear 302. The buffer pad 305 is used to cooperate with the rubber groove 306 to reduce the moving speed of the measuring ruler 2.

[0040] The rubber groove 306 is opened inside the housing 1, and the rubber groove 306 is used for the buffer pad 305 to enter;

[0041] Two ends of the spring 307 are respectively clamped inside the housing 1 and one end of the pressing rod 301 . The spring 307 is used to provide a restoring force for the axial movement of the pressing rod 301 .

[0042] In this embodiment, when the measurement is completed and the measuring ruler 2 is rolled up, the limit of the measuring ruler 2 is released, and at the same time, the pressing rod 301 is pressed by the hand, and the pressing rod 301 is subjected to the extrusion force to drive the first spur gear 302 and the buffer pad 305 to move axially. The first spur gear 302 is still meshed with the second spur gear 303 during the movement, and the retracted measuring ruler 2 will also synchronously drive the rubber pad 304 to rotate. The rotation of the rubber pad 304 transmits the rotational force to the second spur gear 303, and the second spur gear 303 drives the first spur gear 302 to rotate. 02 rotates, the rotating part of the pressing rod 301 rotates under the rotation of the first spur gear 302, thereby driving the buffer pad 305 to rotate. At this time, the buffer pad 305 has entered the inside of the rubber groove 306 under the pressure of the pressing rod 301, and the rubber groove 306 with a flared mouth is in contact with the buffer pad 305. The rotating buffer pad 305 is subjected to the friction force from the rubber groove 306. By controlling the pressing force of the pressing rod 301, the contraction speed of the measuring ruler 2 can be controlled to avoid the rapid contraction of the measuring ruler 2 causing harm to the human body.

[0043] Please refer to Figure 1-Figure 3 The pressing rod 301 is divided into two parts, and the two parts of the pressing rod 301 are rotatably connected to each other for receiving the rotational power from the second spur gear 303. The end of the spring 307 connected to the pressing rod 301 is rotatably connected through a rotating block to prevent the rotating pressing rod 301 from affecting the spring 307. The interior of the housing 1 is formed with a movable groove for axial movement of the pressing rod 301. The outer wall of the buffer pad 305 is formed with a plurality of obliquely protruding protrusions, and the inclination direction of the plurality of protrusions is the contraction direction of the measuring ruler 2. The inner side of the rubber groove 306 matches the outer wall of the buffer pad 305, and the inner side of the rubber groove 306 is in a bell-mouth state.

[0044] In this embodiment: when the pressing rod 301 is pressed by an external force, the pressing rod 301 will synchronously drive the first spur gear 302 and the buffer pad 305 to move, so that the buffer pad 305 enters the rubber groove 306 and gives an extrusion force to the spring 307. Since the connection between the spring 307 and the pressing rod 301 is rotatably connected through the rotating block, the pressing rod 301 will not affect the spring 307 during the rotation process, so that the pressing rod 301 is no longer squeezed by the external force. The pressing rod 301 can be reset under the elastic force of the spring 307, and will not affect the use of the measuring ruler 2.

[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction engineering technical measuring device, comprising a housing (1), wherein a measuring ruler (2) for measuring an object is installed inside the housing (1), characterized in that: A buffer mechanism (3) is arranged on the housing (1), and the buffer mechanism (3) is used to limit the retraction speed of the measuring ruler (2); The buffer mechanism (3) comprises a buffer unit and a transmission unit; The transmission unit rotates synchronously with the movement of the measuring ruler (2) during the movement of the measuring ruler (2); The buffer unit is used to reduce the speed of the measuring ruler (2) during the winding process; The transmission unit comprises a pressing rod (301), a first spur gear (302), a second spur gear (303), and a rubber pad (304); The pressing rod (301) is axially slidably mounted on the outer wall of the housing (1) and extends into the interior of the housing (1), and the pressing rod (301) is used to drive the first spur gear (302) to move synchronously; The first spur gear (302) is fixed to the outer wall of the pressing rod (301), and the first spur gear (302) is used to drive the rotating part of the pressing rod (301) to rotate; The second spur gear (303) is axially rotatably mounted inside the housing (1), and the second spur gear (303) is used to drive the first spur gear (302) to rotate; The rubber pad (304) is fixed to one end of the second spur gear (303), and the outer wall of the rubber pad (304) is in contact with the upper surface of the measuring ruler (2); The buffer unit comprises a buffer pad (305), a rubber groove (306), and a spring (307); The buffer pad (305) is fixed to the outer wall of the pressing rod (301) and does not contact the first spur gear (302), and the buffer pad (305) is used to cooperate with the rubber groove (306) to reduce the moving speed of the measuring ruler (2); The rubber groove (306) is opened inside the housing (1), and the rubber groove (306) is used for the buffer pad (305) to enter; The two ends of the spring (307) are respectively clamped inside the housing (1) and at one end of the pressing rod (301), and the spring (307) is used to provide a restoring force for the axial movement of the pressing rod (301).

2. A construction engineering technical measurement device according to claim 1, characterized in that: The pressing rod (301) is divided into two parts, and the two parts of the pressing rod (301) are rotatably connected to each other and are used to receive the rotational power from the second spur gear (303).

3. A construction engineering technical measurement device according to claim 1, characterized in that: One end of the spring (307) connected to the pressing rod (301) is rotatably connected via a rotating block, thereby preventing the rotating pressing rod (301) from affecting the spring (307).

4. A construction engineering technical measurement device according to claim 1, characterized in that: The housing (1) is internally formed with a movable groove for the axial movement of the pressing rod (301), and the outer wall of the buffer pad (305) is formed of a plurality of obliquely protruding bumps, the inclination direction of the plurality of bumps being the contraction direction of the measuring ruler (2).

5. A construction engineering technical measurement device according to claim 1, characterized in that: The inner side of the rubber groove (306) matches the outer wall of the buffer pad (305), and the inner side of the rubber groove (306) is in a bell-mouth state.

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