A type of steel tape measure for surveying engineering that is shock-resistant, wear-resistant, and has a long service life.

Abstract

This utility model discloses a shock-resistant, wear-resistant, and long-lasting steel tape measure for surveying engineering, belonging to the technical field of steel tape measures. It includes a steel tape measure body, a tape strip on one side of the body, a hook on one side of the tape strip, and a separating device on the side of the body near the tape strip. The separating device includes a frame, which is fixedly connected to the side of the steel tape measure body near the tape strip. A first roller is rotatably connected to the inner side of the frame via a bearing, and a shaft is slidably connected to the inner wall of the frame. By setting the separating device, the tape strip can be separated from the surface of the steel tape measure body, preventing the tape strip from contacting the surface of the steel tape measure body during movement. This reduces excessive friction between the tape strip and the edge of the steel tape measure body during retraction, preventing severe wear on the tape strip surface, blurred scale, and reduced measurement accuracy. This improves the service life and wear resistance of the tape strip.

Description

Technical Field

[0001] This utility model belongs to the field of steel tape measure technology, specifically a steel tape measure for surveying engineering that is shock-resistant, wear-resistant, and has a long service life. Background Technology

[0002] A steel tape measure is a flexible measuring tool made of metal, mainly used for length measurement in fields such as construction, decoration, and surveying.

[0003] In existing surveying engineering steel tape measures, the tape is manually pulled out from inside the steel tape measure and then placed in close contact with the object for measurement. After the measurement is completed, the tape is retracted into the steel tape measure by the elastic extension and contraction of the coil spring inside the steel tape measure to reset it.

[0004] However, as the tape retracts into the steel tape measure, it generates significant friction with the edge of the steel tape measure, resulting in severe wear on the tape surface. This causes the scale markings on the tape surface to become blurred, affecting measurement accuracy and service life. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a steel tape measure for surveying engineering that is shock-resistant, wear-resistant and has a long service life. It solves the problem that the tape measure will have great friction with the edge of the steel tape measure during the process of retracting the tape measure, which will cause severe wear on the tape surface, resulting in blurred scale on the tape surface and affecting the measurement accuracy and service life.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a steel tape measure for surveying engineering that is impact-resistant, wear-resistant, and has a long service life, comprising a steel tape measure body, a tape strip on one side of the steel tape measure body, a hook on one side of the tape strip, a separating device on the side of the steel tape measure body near the tape strip, the separating device comprising a frame, the frame being fixedly connected to the side of the steel tape measure body near the tape strip, a first roller being rotatably connected to the inner side of the frame via a bearing, a shaft being slidably connected to the inner wall of the frame, a second roller being rotatably connected to the surface of the shaft, and a threaded ring being threaded to the surface of the shaft, the surface of the threaded ring being larger than the inner wall of the groove on the frame.

[0009] As a further embodiment of this utility model: the surface of the screw hole ring is fixedly connected with multiple anti-slip protrusions, wherein the multiple anti-slip protrusions are arranged at equal intervals.

[0010] As a further embodiment of this utility model: rubber sleeves are fixedly fitted on the surfaces of both the first roller and the second roller.

[0011] As a further embodiment of this utility model: a first telescopic rod is fixedly connected to the side of the frame away from the steel tape measure body, and a stop bar is fixedly connected to the movable end of the first telescopic rod away from the steel tape measure body, wherein the surface of the stop bar is lower than the surface of the first roller.

[0012] As a further embodiment of this utility model: a rubber column is fixedly connected inside the first telescopic rod, and the surface of the rubber column is in contact with the moving end surface of the first telescopic rod.

[0013] As a further embodiment of this utility model: a protective device is provided on one side of the steel tape measure body. The protective device includes a second telescopic rod, which is fixedly connected to the steel tape measure body. A protective cover is fixedly connected to the moving end of the second telescopic rod, wherein the surface of the protective cover is higher than the surface of the steel tape measure body and covers it. A spring is fixedly connected between the second telescopic rod and the protective cover.

[0014] As a further embodiment of this utility model: multiple airbags are fixedly connected to the side of the protective cover away from the steel measuring tape body, wherein the airbags are in an inflated state.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The surveying project uses a shock-resistant, wear-resistant, and long-lasting steel tape measure. By setting a separation device, the tape can be separated from the surface of the steel tape measure body, preventing the tape from contacting the surface of the steel tape measure body during movement. This reduces the friction between the tape and the edge of the steel tape measure body during the tape measure retrieval process, which can lead to severe wear on the tape surface, blurred scale, and reduced measurement accuracy. This improves the service life and wear resistance of the tape.

[0018] 2. The surveying project uses a shock-resistant, wear-resistant steel tape measure with a long service life. By setting up a separation device, the wear between the tape and the steel tape measure body during use can be reduced. At the same time, the hooks on the tape can be intercepted to prevent the hooks from causing collision and wear on the surface of the steel tape measure body during the retrieval process, thereby improving the service life of the steel tape measure body.

[0019] 3. The surveying project uses a shock-resistant, wear-resistant, and long-lasting steel tape measure. By installing a protective device, the steel tape measure body can be prevented from directly colliding with the ground or objects when accidentally dropped. This reduces the possibility of the steel tape measure body being accidentally dropped during use, causing collision damage to the ground or objects, and affecting the normal use of the steel tape measure body. This improves the safety and shock resistance of the steel tape measure body. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the shaft of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the frame of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the protective cover of this utility model.

[0024] In the diagram: 1. Steel measuring tape body; 2. Measuring tape; 3. Hook; 4. Dividing device; 41. Frame; 42. First roller; 43. First telescopic rod; 44. Stop bar; 45. Rubber column; 46. Shaft; 47. Screw hole ring; 48. Anti-slip protrusion; 49. Second roller; 410. Rubber sleeve; 5. Protective device; 51. Second telescopic rod; 52. Protective cover; 53. Spring; 54. Airbag. Detailed Implementation

[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0026] like Figure 1-4As shown, this utility model provides a technical solution: a steel tape measure for surveying engineering that is impact-resistant, wear-resistant, and has a long service life, including a steel tape measure body 1, a tape 2 on one side of the steel tape measure body 1, a hook 3 on one side of the tape 2, and a separating device 4 on the side of the steel tape measure body 1 near the tape 2. The separating device 4 includes a frame 41, which is fixedly connected to the side of the steel tape measure body 1 near the tape 2. A first roller 42 is rotatably connected to the inner side of the frame 41 via a bearing. A shaft 46 is slidably connected to the inner wall of the frame 41, and a second roller 49 is rotatably connected to the surface of the shaft 46. A threaded ring 47 is threaded onto the surface of the shaft 46, and the surface of the threaded ring 47 is larger than the inner wall of the groove on the frame 41. By setting the separating device 4, the frame 41 is first fixed to the steel tape measure body 1 by welding or other means, so that the tape 2 is placed on the surface of the first roller 42. At this time, manually moving the shaft 46 moves the second roller 49. When the shaft 46 moves into the slot opened on the frame 41, the screw ring 47 is manually rotated, causing the screw ring 47 to move left and right along the surface of the shaft 46. This moves the screw ring 47 to the position of pressing the surface of the frame 41 to fix the shaft 46, thus achieving the assembly and fixation of the second roller 49 with the frame 41. This allows the second roller 49 to be in contact with or close to the surface of the measuring tape 2. When the measuring tape 2 moves and shakes up and down, the first roller 42 cooperates with the second roller 49 to intercept the measuring tape 2, separating it from the surface of the steel measuring tape body 1. At the same time, the rotation of the first roller 42 and the second roller 49 reduces the friction with the measuring tape 2, thereby achieving wear protection for the measuring tape 2. This reduces the large friction between the measuring tape 2 and the edge of the steel measuring tape body 1 during the recycling process, which would cause severe wear on the surface of the measuring tape 2, resulting in blurred scale on the surface of the measuring tape 2 and affecting the measurement accuracy. This improves the service life and wear resistance of the measuring tape 2.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, multiple anti-slip protrusions 48 are fixedly connected to the surface of the screw hole ring 47. The multiple anti-slip protrusions 48 are arranged at equal intervals. By setting the anti-slip protrusions 48, the contact friction between the surface of the screw hole ring 47 and the hand can be increased, reducing the possibility of slippage when manually rotating the screw hole ring 47. The surfaces of the first roller 42 and the second roller 49 are both fixedly fitted with rubber sleeves 410. By setting the rubber sleeves 410, the rubber sleeves 410 can separate the surface of the ruler 2 from the surfaces of the first roller 42 and the second roller 49, reducing the friction generated between the ruler 2 and the surfaces of the first roller 42 and the second roller 49, and further reducing the wear generated by the ruler 2 during movement.

[0028] Specifically, such as Figure 2 and Figure 3As shown, a first telescopic rod 43 is fixedly connected to the side of the frame 41 away from the steel tape measure body 1. A stop bar 44 is fixedly connected to the moving end of the first telescopic rod 43 away from the steel tape measure body 1. The surface of the stop bar 44 is lower than the surface of the first roller 42. By setting the stop bar 44, the stop bar 44, together with the first telescopic rod 43, can intercept the moving hook 3, preventing the hook 3 from colliding and wearing with the surface of the steel tape measure body 1 during the recycling process, thereby improving the protection effect of the steel tape measure body 1 and the service life of the steel tape measure body 1. A rubber column 45 is fixedly connected inside the first telescopic rod 43. The surface of the rubber column 45 is in contact with the surface of the moving end of the first telescopic rod 43. By setting the rubber column 45, when the moving end of the first telescopic rod 43 moves, it squeezes the rubber column 45. Under the elastic deformation of the rubber material, it absorbs the impact force generated when the first telescopic rod 43 moves, reducing the impact force generated by the collision of the hook 3.

[0029] Specifically, such as Figure 4 As shown, a protective device 5 is provided on one side of the steel tape measure body 1. The protective device 5 includes a second telescopic rod 51, which is fixedly connected to the steel tape measure body 1. A protective cover 52 is fixedly connected to the moving end of the second telescopic rod 51. The surface of the protective cover 52 is higher than and covers the surface of the steel tape measure body 1. A spring 53 is fixedly connected between the second telescopic rod 51 and the protective cover 52. By setting the protective device 5, the second telescopic rod 51 is first fixed to the steel tape measure body 1 by welding or fusion, so that the protective cover 52 covers the surface of the steel tape measure body 1. When the steel tape measure body 1... In the event of an accidental drop, the protective cover 52 collides with the ground or an object, preventing the steel tape measure body 1 from colliding with the ground or an object. This causes the protective cover 52 to compress the spring 53, which in turn converts mechanical kinetic energy into elastic potential energy through elastic deformation and stores it. This reduces the transmission of vibration to the steel tape measure body 1, thereby achieving drop protection for the steel tape measure body 1. This reduces the likelihood of the steel tape measure body 1 accidentally slipping out of your hand and falling, causing it to collide with the ground or an object and be damaged, thus affecting its normal use. This improves the safety and drop resistance of the steel tape measure body 1.

[0030] Specifically, such as Figure 4 As shown, multiple airbags 54 are fixedly connected to the side of the protective cover 52 away from the steel tape measure body 1. The airbags 54 are in an inflated state. By setting the airbags 54, the airbags 54 can separate the protective cover 52 from the ground or objects. At the same time, the airbags 54 compress air to form a buffer layer after being subjected to force, which further improves the protection effect on the steel tape measure body 1.

[0031] The working principle of this utility model is as follows:

[0032] S1. When using the steel tape measure body 1, the tape 2 is pulled out from inside the steel tape measure by manually pulling the hook 3, and then it is placed in close contact with the object for measurement. After the measurement is completed, the tape 2 is retracted into the steel tape measure by the elastic extension and contraction of the coil spring inside the steel tape measure to reset it.

[0033] S2. First, the frame 41 is fixed to the steel tape measure body 1 by means of fusion or welding, so that the tape 2 is placed on the surface of the first roller 42. At this time, the shaft 46 is manually moved to drive the second roller 49 to move. When the shaft 46 moves into the slot opened on the frame 41, the screw ring 47 is manually rotated, so that the screw ring 47 moves left and right along the surface of the shaft 46, so that the screw ring 47 moves to the position of pressing the surface of the frame 41 to fix the shaft 46, so as to achieve the assembly and fixation of the second roller 49 and the frame 41, so that the second roller 49 is in contact with or close to the surface of the tape 2. When the tape 2 moves and produces up and down shaking, the first roller 42 cooperates with the second roller 49 to intercept the tape 2, so as to separate it from the surface of the steel tape measure body 1. At the same time, the rotation of the first roller 42 and the second roller 49 reduces the friction with the tape 2, thereby achieving wear protection for the tape 2.

[0034] S3. First, the second telescopic rod 51 is fixed to the steel tape measure body 1 by welding or fusion, so that the protective cover 52 covers the surface of the steel tape measure body 1. When the steel tape measure body 1 falls accidentally, the protective cover 52 collides with the ground or an object, preventing the steel tape measure body 1 from colliding with the ground or an object. The protective cover 52 compresses the spring 53, so that the spring 53 converts mechanical kinetic energy into elastic potential energy through elastic deformation and stores it, reducing the vibration transmitted to the steel tape measure body 1, thereby achieving anti-fall protection for the steel tape measure body 1.

[0035] 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.

[0036] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A shock-resistant, wear-resistant, and long-service steel tape measure for surveying engineering, comprising a steel tape measure body (1), characterized in that: A measuring tape (2) is provided on one side of the steel measuring tape body (1), and a hook (3) is provided on one side of the measuring tape (2). A separating device (4) is provided on the side of the steel measuring tape body (1) near the measuring tape (2). The separating device (4) includes a frame (41). The frame (41) is fixedly connected to the side of the steel measuring tape body (1) near the measuring tape (2). A first roller (42) is rotatably connected to the inner side of the frame (41) through a bearing. A shaft (46) is slidably connected to the inner wall of the frame (41). A second roller (49) is rotatably connected to the surface of the shaft (46). A threaded ring (47) is threaded onto the surface of the shaft (46). The surface of the threaded ring (47) is larger than the inner wall of the groove on the frame (41).

2. The long service life, anti-drop and wear-resistant steel tape measure for surveying engineering according to claim 1, characterized in that: The surface of the screw hole ring (47) is fixedly connected with multiple anti-slip protrusions (48), which are arranged at equal intervals.

3. The long service life, anti-knock, and wear-resistant steel tape measure for surveying engineering according to claim 1, characterized in that: The surfaces of the first roller (42) and the second roller (49) are both fixedly fitted with rubber sleeves (410).

4. The long service life, anti-knock, and wear-resistant steel tape measure for surveying engineering according to claim 1, characterized in that: The frame (41) is fixedly connected to a first telescopic rod (43) on the side away from the steel tape measure body (1), and a stop bar (44) is fixedly connected to the moving end of the first telescopic rod (43) on the side away from the steel tape measure body (1), wherein the surface of the stop bar (44) is lower than the surface of the first roller (42).

5. The long service life, anti-knock, and wear-resistant steel tape measure for surveying engineering according to claim 4, characterized in that: A rubber column (45) is fixedly connected inside the first telescopic rod (43), and the surface of the rubber column (45) is in contact with the moving end surface of the first telescopic rod (43).

6. The long service life, anti-knock, and wear-resistant steel tape measure for surveying engineering according to claim 1, characterized in that: A protective device (5) is provided on one side of the steel tape measure body (1). The protective device (5) includes a second telescopic rod (51), which is fixedly connected to the steel tape measure body (1). A protective cover (52) is fixedly connected to the moving end of the second telescopic rod (51). The surface of the protective cover (52) is higher than the surface of the steel tape measure body (1) and covers it. A spring (53) is fixedly connected between the second telescopic rod (51) and the protective cover (52).

7. The long service life, anti-knock, and wear-resistant steel tape for surveying engineering according to claim 6, characterized in that: The protective cover (52) has multiple airbags (54) fixedly connected to the side away from the steel tape measure body (1), wherein the airbags (54) are in an inflated state.

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