Angle ruler for boom of telescopic boom forklift

Abstract

The utility model relates to a bevel protractor for a boom of a telescopic boom forklift, which belongs to the technical field of measuring devices characterized by mechanical technology and comprises a screw seat fixedly mounted on the boom, a bolt mounted on the screw seat, a bevel protractor plate and a pointer sleeved on the bolt, the bevel protractor plate is positioned between the pointer and the screw seat, and the bevel protractor plate is triangular. The bottom edge of the triangular bevel protractor plate is arc-shaped, an arc-shaped angle identification plate is arranged on the bottom edge of the bevel protractor plate, and a zero-degree mark of the angle identification plate is located at the lowest position. The screw seat is fixedly installed on the arm support, the situation that strength is affected by thin arm support plates and direct drilling is avoided, meanwhile, the situation that telescopic movement between the arm supports is affected after bolts are assembled is avoided, the effect of movement indication is achieved through the gravity of the pointer, the drooping tail end of the pointer points to angle values on the angle identification plate, the result display effect is good, the structure is simple, applicability is high, and practicability is high. And a good warning effect can be achieved.

Description

Technical Field

[0001] The utility model relates to an angle ruler for a telescopic arm forklift arm frame, belonging to the technical field of measuring devices characterized by mechanical technology. Background Art

[0002] For telescopic boom aerial work platforms, the stability and safety of their movements are issues that cannot be ignored. Stability is related to the load carried by the forklift, the length of the boom, and the angle of the boom. How to use more effective methods to timely identify the angle and length of the boom is particularly important for human-machine safety.

[0003] The existing boom angle is observed through various forms of boom angle scale structures, such as the ball type, which uses the ball's own gravity to move in an angle channel to achieve the function of angle identification. However, due to the small ball and high boom, it is difficult for people outside to observe the movement of the ball, so the effect is poor and the purpose of warning the operator cannot be achieved. Utility Model Content

[0004] The utility model aims to provide an angle ruler for a telescopic forklift loader arm frame in order to solve the technical problem that the angle measurement result display effect is poor and cannot play a warning role.

[0005] The utility model is realized by the following technical solutions:

[0006] That is, an angle ruler for the arm of a telescopic forklift, including a wire seat fixedly installed on the arm, the wire seat is installed with bolts, an angle ruler plate and a pointer are sleeved on the bolts, the angle ruler plate is located between the pointer and the wire seat, the angle ruler plate is in the shape of a triangle, a hollow hole is opened on the angle ruler plate, the bottom edge of the triangular angle ruler plate is arc-shaped, an arc-shaped angle identification plate is provided on the bottom edge of the angle ruler plate, and the zero degree mark of the angle identification plate is located at the lowest point.

[0007] The wire seat is fixedly installed on the arm to avoid the influence of direct drilling on the strength due to the thin thickness of the arm plate, and to avoid the influence of the telescopic movement between the arms after the bolts are assembled. The movement indication effect is achieved by relying on the self-gravity of the pointer. The pointer hangs down and points to the angle value on the angle identification plate. The result display effect is good, the structure is simple, the applicability is strong, and it can play a good warning role.

[0008] A further improvement of the utility model is that an arc-shaped groove is provided on the bottom edge of the angle ruler plate, and the arc-shaped angle identification plate is arranged in the arc-shaped groove, which can effectively avoid scouring and corrosion of the angle identification plate and improve the service life.

[0009] A further improvement of the utility model is that a round tube is sleeved on the bolt, and the round tube is located in a round hole 2 provided on the upper end of the pointer. The pointer is sleeved on the round tube, which plays a role in reducing friction resistance during rotation.

[0010] A further improvement of the utility model is that a flange protrusion is provided on the bolt, and the inner end surface of the flange protrusion is pressed against the end surface of the circular tube.

[0011] A further improvement of the utility model is that the thickness of the pointer is smaller than the length of the round tube, so that the two sides of the pointer are prevented from contacting the angle ruler plate and the bolt, thereby reducing resistance.

[0012] A further improvement of the utility model is that there is a clearance fit between the round tube and the second round hole on the pointer, so that the rotation resistance is reduced and the angle display is more accurate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The wire seat is fixedly installed on the arm to avoid the influence of direct drilling on the strength due to the thin thickness of the arm plate, and to avoid the influence of the telescopic movement between the arms after the bolts are assembled. The movement indication effect is achieved by relying on the self-gravity of the pointer. The pointer hangs down and points to the angle value on the angle identification plate. The result display effect is good, the structure is simple, the applicability is strong, and it can play a good warning role. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic cross-sectional structure diagram of a specific implementation method of the utility model.

[0017] Figure 2 It is a schematic diagram of the explosion structure of a specific implementation method of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the use state of a specific implementation mode of the utility model.

[0019] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] In the figure: 1, wire seat; 2, angle ruler plate; 3, angle identification plate; 4, round tube; 5, pointer; 6, bolt; 7, arm bracket; 201, round hole one; 202, hollow hole; 203, arc groove; 502, round hole two; 601, flange protrusion. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 4 The angle ruler for the arm of a telescopic forklift shown in the figure comprises a wire seat 1 fixedly mounted on the arm 7, the wire seat 1 is installed with a bolt 6, an angle ruler plate 2 and a pointer 5 are sleeved on the bolt 6, the angle ruler plate 2 is located between the pointer 5 and the wire seat 1, the angle ruler plate 2 is in the shape of a triangle, a hollow hole 202 is opened on the angle ruler plate 2, the bottom edge of the triangular angle ruler plate 2 is arc-shaped, an arc-shaped angle identification plate 3 is provided on the bottom edge of the angle ruler plate 2, and the zero degree mark of the angle identification plate 3 is located at the lowest point.

[0023] The wire seat 1 is fixedly installed on the arm 7 to avoid the influence of direct drilling on the strength due to the thin thickness of the arm 7, and to avoid the influence of the telescopic movement of the arm 7 after the bolt 6 is assembled. The movement indication effect is achieved by relying on the self-gravity of the pointer 5. The lower end of the pointer 5 points to the angle value on the angle identification plate 3. The result display effect is good, the structure is simple, the applicability is strong, and it can play a good warning role.

[0024] Among them, an arc-shaped groove 203 is provided on the bottom edge of the angle ruler plate 2, and the arc-shaped angle identification plate 3 is arranged in the arc-shaped groove 203. The scouring and corrosion of the angle identification plate 3 can be effectively avoided, and the service life is improved.

[0025] Among them, a round tube 4 is sleeved on the bolt 6, and the round tube 4 is located in a round hole 2 502 opened at the upper end of the pointer 5. The thickness of the pointer 5 is smaller than the length of the round tube 4 to prevent the two sides of the pointer 5 from contacting the angle plate 2 and the bolt 6. The pointer 5 is sleeved on the round tube 4 to reduce the friction resistance during rotation.

[0026] A flange protrusion 601 is provided on the bolt 6 , and the inner end surface of the flange protrusion 601 is pressed against the end surface of the circular tube 4 .

[0027] There is a clearance fit between the round tube 4 and the second round hole 502 on the pointer 5, which reduces the rotation resistance and makes the angle display more accurate.

[0028] Working principle:

[0029] The wire seat 1 is fixedly installed on the arm 7 to avoid the influence of direct drilling on the strength due to the thin thickness of the arm 7, and to avoid the influence of the telescopic movement of the arm 7 after the bolt 6 is assembled. The movement indication effect is achieved by relying on the self-gravity of the pointer 5. The lower end of the pointer 5 points to the angle value on the angle identification plate 3. The result display effect is good, the structure is simple, the applicability is strong, and it can play a good warning role.

[0030] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0031] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An angle ruler for a telescopic forklift arm, characterized in that: The invention comprises a wire seat (1) fixedly mounted on an arm frame (7), the wire seat (1) being mounted with a bolt (6), an angle scale plate (2) and a pointer (5) being sleeved on the bolt (6), the angle scale plate (2) being located between the pointer (5) and the wire seat (1), the angle scale plate (2) being in the shape of a triangle, a hollow hole (202) being provided on the angle scale plate (2), the bottom edge of the triangular angle scale plate (2) being in an arc shape, an arc-shaped angle identification plate (3) being provided on the bottom edge of the angle scale plate (2), and the zero degree mark of the angle identification plate (3) being located at the lowest position.

2. The angle ruler for the telescopic forklift arm according to claim 1, characterized in that: An arc-shaped groove (203) is provided on the bottom edge of the angle ruler plate (2), and the arc-shaped angle identification plate (3) is arranged in the arc-shaped groove (203).

3. The angle ruler for the telescopic forklift arm according to claim 1, characterized in that: A round tube (4) is sleeved on the bolt (6), and the round tube (4) is located in a second round hole (502) provided at the upper end of the pointer (5).

4. The angle ruler for the telescopic forklift arm according to claim 3, characterized in that: A flange protrusion (601) is provided on the bolt (6), and the inner end surface of the flange protrusion (601) is pressed against the end surface of the circular tube (4).

5. The angle ruler for the telescopic forklift arm according to claim 3, characterized in that: The thickness of the pointer (5) is smaller than the length of the round tube (4).

6. An angle ruler for a telescopic forklift arm according to claim 3 or 5, characterized in that: There is a clearance fit between the round tube (4) and the second round hole (502) on the pointer (5).

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