Convenient-to-use box staff

Abstract

The utility model discloses a telemeter rod convenient to use, which belongs to the technical field of leveling instrument measurement and comprises a telemeter rod main body, a base with a cavity is fixedly arranged at the bottom of the telemeter rod main body, side plates are rotatably arranged on two sides of the base, a pressing component penetrating out of the upper end face of the base is fixedly arranged in the base, and driven gears are coaxially arranged on the side plates in the cavity. A transmission assembly which enables the side plate gear to rotate by operating the pressing assembly is connected between the two driven gears and the pressing assembly, and a plurality of ground nails are arranged on the side, away from the box staff body, of the side plate. Compared with the prior art, the telemeter rod convenient to use has wide applicability due to the design, a user can conveniently increase the contact area between the bottom of the telemeter rod and the ground, and the telemeter rod is fixed through the pegs, so that the telemeter rod is prevented from being manually supported during measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of level ruler measurement, in particular to a tower ruler that is convenient to use. Background Art

[0002] A tower ruler is a type of level ruler. In the early days, the level ruler was made of wood, which was heavy and limited in length. Later, it was made of lightweight and high-strength materials such as aluminum alloy. It uses a tower-shaped contraction form to increase the measuring range. It can be contracted when carried. Because its shape is similar to a tower, it is called a tower ruler.

[0003] When the observer is measuring, the bottom of the scale is easily damaged by water or mud. In the prior art, the scale is placed on a tower base that is firmly connected to the ground through ground nails. However, since the scale is prone to shaking after being extended, someone other than the observer is required to hold the scale to prevent it from shaking violently due to wind and then falling down.

[0004] In view of the above problems, a technical solution of a convenient-to-use tower ruler is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art and provides a convenient-to-use tower ruler.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a convenient-to-use tower ruler, including a tower ruler main body, a base with a cavity is fixedly arranged at the bottom of the tower ruler main body, side panels are rotatably arranged on both sides of the base, a pressing assembly is fixedly arranged in the base and passes through the upper end surface of the base, the side plate is coaxially arranged with a driven gear in the cavity, a transmission assembly is connected between the two driven gears and the pressing assembly, and a plurality of ground nails are arranged on the side of the side plate away from the tower ruler main body.

[0007] The utility model is further configured as follows: two groups of support members are arranged between the side panel and the base, and the support members include two support strips whose one ends are rotatably abutted against each other, and the other ends of the two support strips are also rotatably connected to the base and the side panel respectively, and the two support strips are unfolded as the side panel rotates close to the ground, until the side panel is in contact with the ground, the two support strips are unfolded to a position where the two are abutted against each other.

[0008] The utility model is further configured as follows: an empty slot is provided on the side plate, the ground nail rotates in the empty slot, and a protective piece is provided on the side plate for restricting the ground nail from rotating out of the empty slot.

[0009] The utility model is further configured as follows: the pressing assembly includes a positioning member, a shell fixedly connected to the base, and a pressing member slidably connected to the base, the shell is fixedly provided with a through groove, and a rack passing through the shell is fixedly provided on one side of the pressing member, when the pressing member moves, the rack can move along the through groove and thereby drive the transmission assembly, the pressing member slides out of the cavity distribution, the positioning member supports the end face of the pressing member extending into the cavity, and the positioning member can support the end of the pressing member extending into the cavity to maintain two different positions in the cavity.

[0010] The utility model is further configured as follows: the positioning member includes a rotating member and a spring, the two ends of the spring are respectively in contact with the inner bottom surface of the shell and the rotating member, the side wall of the shell is formed with a plurality of slide grooves, the bottom of the shell is provided with a rotation-blocking channel and an inclined slide channel connected in sequence, the pressing member is formed with a plurality of active protrusions slidably connected with the slide grooves, the rotating member is provided with a plurality of driven protrusions abutting against the active protrusions at annular intervals, and the active protrusions and the driven protrusions are both formed with inclined surfaces.

[0011] The utility model is further configured as follows: the transmission assembly comprises a plurality of transmission gears and a plurality of synchronous belts for transmission connection between the rack and two driven gears, and the two driven gears rotate synchronously and the directions of the angular velocities of the two are opposite.

[0012] In summary, the utility model has the following beneficial effects: compared with the prior art, the design makes it widely applicable, and the user can conveniently increase the contact area between the bottom of the tower ruler and the ground, and fix it with ground nails, avoiding the need for manual support of the tower ruler during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 It is a schematic diagram of the structure in the base cavity of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the pressing assembly of the utility model;

[0017] Figure 5 It is a cross-sectional view of the shell of the utility model.

[0018] In the figure: 1. tower ruler body; 2. base; 21. cavity; 22. transmission gear; 23. support bar; 24. synchronous belt; 3. side plate; 31. empty slot; 32. driven gear; 4. protective member; 5. pressing member; 51. rack; 52. active protrusion; 6. rotating member; 61. driven protrusion; 7. spring; 8. housing; 81. slide groove; 811. inclined slideway; 812. anti-rotation channel; 82. through groove; 9. ground nail; 10. transmission assembly; 11. pressing assembly; 12. positioning member. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments.

[0020] A convenient tower ruler, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, it includes a tower ruler body 1, a base 2 with a cavity 21 is fixedly provided at the bottom of the tower ruler body 1, side panels 3 are rotatably provided on both sides of the base 2, a pressing component 11 is fixedly provided in the base 2 and passes through the upper end surface of the base 2, and a driven gear 32 is coaxially provided in the cavity 21 of the side plate 3, a transmission component 10 is connected between the two driven gears 32 and the pressing component 11, and the gears of the side plate 3 are rotated by operating the pressing component 11, and a plurality of ground nails 9 are provided on the side of the side plate 3 away from the tower ruler body 1.

[0021] Practical effect: The user controls the position of the side panel 3 and the ground nail 9 by stepping on the pressing component 11 and the cooperation between the pressing component 11 and the transmission component 10. Compared with the prior art, this design makes it have wide applicability. The user can conveniently increase the contact area between the bottom of the tower ruler and the ground, and fix it with the ground nail 9, avoiding the need for manual support of the tower ruler during measurement.

[0022] Furthermore, in order to improve the supporting effect of the base 2 on the tower ruler body 1, the base 2 is provided with more contact area at a position which does not affect the tower ruler reading, and two groups of support members are provided between the side panel 3 and the base 2. The support members include two support bars 23 whose one ends are rotatably abutted against each other, and the other ends of the two support bars 23 are also rotatably connected to the base 2 and the side panel 3 respectively. The two support bars 23 are unfolded as the side panel 3 rotates close to the ground. When the side panel 3 is in contact with the ground, the two support bars 23 are unfolded to a position where the two are abutted. At this time, the support members, the side panel 3 and the base 2 can form a stable triangular structure, so that the tower ruler can be stably placed on the ground during measurement.

[0023] Furthermore, considering that the ground nail 9 on the side panel 3 is easy to cause harm to the user, an empty slot 31 is provided on the side panel 3, and the ground nail 9 rotates in the empty slot 31. A protective member 4 for restricting the ground nail 9 from rotating away from the empty slot 31 is provided on the side panel 3. The rotation of the ground nail 9 is limited by the protective member 4. When the ground nail 9 is not needed, the sharp surface of the ground nail 9 is prevented from causing harm to the user. When the ground nail 9 is in use, the protective member 4 can be inserted into the hole reserved on the side panel 3.

[0024] like Figure 3 as well as Figure 4 As shown, the pressing assembly 11 includes a positioning member 12, a shell 8 fixedly connected to the base 2, and a pressing member 5 slidably connected to the base 2. The shell 8 is fixedly provided with a through groove 82. A rack 51 passing through the shell 8 is fixedly provided on one side of the pressing member 5. The rack 51 is meshed with the transmission assembly 10. When the pressing member 5 moves, the rack 51 can move along the through groove 82 to drive the transmission assembly 10. The pressing member 5 slides out of the cavity 21 for distribution. The positioning member 12 supports the end face of the pressing member 5 extending into the cavity 21, and the positioning member 12 can support the end of the pressing member 5 extending into the cavity 21 to maintain two different positions in the cavity 21. Among them, the positioning member 12 includes a rotating The base 2 is fixedly connected with a housing 8 for accommodating the reciprocating sliding of the rotating member 6 and the spring 7, a through slot 82 is arranged on the housing 8, the rack 51 moves in the through slot 82 as the pressing member 5 is used, the two ends of the spring 7 are respectively in contact with the inner bottom surface of the housing 8 and the rotating member 6, a plurality of slide grooves 81 are formed on the side wall of the housing 8, a rotation-blocking path 812 and an inclined slide 811 connected in sequence are arranged at the bottom of the housing 8, the pressing member 5 is formed with a plurality of active protrusions 52 slidably connected with the slide grooves 81, the rotating member 6 is provided with a plurality of driven protrusions 61 abutting against the active protrusions 52 at annular intervals, and both the active protrusions 52 and the driven protrusions 61 are formed with inclined surfaces;

[0025] Specifically, the transmission assembly 10 includes a plurality of transmission gears 22 and a plurality of synchronous belts 24 for transmission connection between the rack 51 and two driven gears 32 , and the two driven gears 32 rotate synchronously and their angular velocities are in opposite directions.

[0026] When in use, by operating the pressing member 5, the rotating member 6 is respectively located at the anti-rotation path 812 or the inclined slide 811. The pressing member 5 will change its position according to the different positions of the rotating member 6. The upper end surface of the pressing member 5 is always higher than the upper end surface of the base 2 and the height above the end surface can be used to operate the pressing member 5 with the foot, thereby driving the rack 51 to move. When the rack 51 moves, the transmission gear 22 meshing with the rack 51 will rotate. At this time, the pressing force is converted into a rotational force, and the other transmission gears 22 are driven to rotate through the synchronous belt 24, thereby driving the two driven gears 32 to rotate, so that the side panels 3 rotate synchronously and the angular velocity is in the opposite direction.

[0027] 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.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A convenient tower ruler, comprising a tower ruler body, characterized in that: A base with a cavity is fixedly provided at the bottom of the tower ruler body, and side panels are rotatably provided on both sides of the base. A pressing assembly is fixedly provided in the base and passes through the upper end surface of the base. A driven gear is coaxially provided on the side plate in the cavity, and a transmission assembly is connected between the two driven gears and the pressing assembly for rotating the side plate gears by operating the pressing assembly. A plurality of ground nails are provided on the side of the side plate away from the tower ruler body.

2. The convenient-to-use tower ruler according to claim 1, characterized in that: Two groups of support members are arranged between the side panel and the base, and the support members include two support strips whose one ends are rotatably abutted against each other, and the other ends of the two support strips are also rotatably connected to the base and the side panel respectively. The two support strips are unfolded as the side panel rotates close to the ground, until the side panel is in contact with the ground, and the two support strips are unfolded to a position where the two are abutted against each other.

3. The convenient-to-use tower ruler according to claim 1, characterized in that: The side plate is provided with an empty slot, the ground nail rotates in the empty slot, and the side plate is provided with a protective piece for restricting the ground nail from rotating out of the empty slot.

4. The convenient-to-use tower ruler according to claim 1, characterized in that: The pressing assembly includes a positioning member, a shell fixedly connected to the base, and a pressing member slidably connected to the base. The shell is fixedly provided with a through groove, and a rack passing through the shell is fixedly provided on one side of the pressing member. When the pressing member moves, the rack can move along the through groove and thus drive the transmission assembly. The pressing member slides out of the cavity distribution, and the positioning member supports the end face of the pressing member extending into the cavity, and the positioning member can support the end of the pressing member extending into the cavity to maintain two different positions in the cavity.

5. The convenient-to-use tower ruler according to claim 4, characterized in that: The positioning member includes a rotating member and a spring, the two ends of the spring are respectively in contact with the inner bottom surface of the shell and the rotating member, the side wall of the shell is formed with a plurality of slide grooves, the bottom of the shell is provided with a rotation-blocking channel and an inclined slide channel connected in sequence, the pressing member is formed with a plurality of active protrusions slidably connected to the slide grooves, the rotating member is provided with a plurality of driven protrusions abutting against the active protrusions at annular intervals, and the active protrusions and the driven protrusions are both formed with inclined surfaces.

6. The convenient-to-use tower ruler according to claim 1, characterized in that: The transmission assembly comprises a plurality of transmission gears and a plurality of synchronous belts for transmission connection between the rack and two driven gears, and the two driven gears rotate synchronously and the directions of the angular velocities of the two are opposite.

Images