Guardrail perpendicularity detection device

Abstract

The invention relates to the technical field of detection, in particular to a guardrail perpendicularity detection device which comprises a handle frame, the handle frame is in a U shape with a downward opening, a fixing shaft is fixed to the end of the handle frame, clamping pieces are rotationally installed at the two ends of the fixing shaft, and a laser transmitter is rotationally installed at the end of an extension arm. A first sliding shaft and a second sliding shaft are slidably mounted on the inner side of the handle frame. The detection device is installed on a top cross beam of the guardrail body and clamps and fixes the top cross beam. The device has the beneficial effects that a worker controls laser emitted by the two laser emitters to irradiate the same point and then pulls the handle frame until the laser emitted by the laser emitters coincides with the bottom of the guardrail body, so that the inclination angle of the handle frame is consistent with the overall inclination angle of the guardrail body, and at the moment, the pointer is kept vertical under the action of gravity; the inclination angle of the whole guardrail body, namely the perpendicularity of the guardrail body, can be detected by detecting the inclination angle between the pointer and the handle frame.

Description

Technical Field

[0001] The present invention relates to the technical field of detection, and particularly to a vertical detection device for guardrails. Background Art

[0002] After the installation of the guardrail, quality inspection is required, and verticality inspection is also an important index. Most of the conventional verticality inspection indexes are detected by a plumb bob equipped with a thin string.

[0003] In the prior art, a Chinese utility model with the publication number CN219829915U discloses a verticality detector for highway guardrail installation, which can eliminate the interference of light and wind direction and facilitate the intuitive observation of the verticality of the railing.

[0004] However, at present, the operation process of the traditional verticality detector is relatively complex and difficult to meet the requirements of rapid detection. Therefore, the present invention proposes a vertical detection device for guardrails to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical detection device for guardrails to solve the problem that the operation process of the traditional verticality detector is relatively complex as mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A vertical detection device for guardrails, comprising: A handle frame, the handle frame is in a "C" shape with an opening downward, a fixed shaft is fixed at the end of the handle frame, clamping members are rotatably installed at both ends of the fixed shaft, and the clamping members are symmetric about the plane where the handle frame is located. Extension arms are fixed on both sides of the clamping members, and a laser emitter is rotatably installed at the end of the extension arm. A first sliding shaft and a second sliding shaft are slidably installed inside the handle frame. The first sliding shaft drives the clamping members to expand, and the second sliding shaft pulls the laser emitter to rotate around the end of the extension arm through an adjusting rope; The detection device is installed on the top cross beam of the guardrail body and clamps and fixes it. The handle frame and the guardrail body are coplanar as a whole. A pointer is rotatably installed on the side of the handle frame, and the pointer naturally drops under the action of gravity.

[0007] Preferably, an indicating disk with a hollow structure is fixedly inlaid on the side of the handle frame. The pointer is located inside the indicating disk cavity, and the upper end of the pointer is rotatably connected to the inner wall of the indicating disk. A scale table corresponding to the lower end of the pointer is opened on the lower side of the inner wall of the indicating disk, and a transparent cover plate is fixedly covered at the front opening of the indicating disk.

[0008] Preferably, a grip rod parallel to the middle part of the handle frame is provided on the inner side of the handle frame, guide plates are fixed at both ends of the grip rod, the upper end of the guide plate is fixedly connected to the middle part of the handle frame, and the sliding shaft 1 and the sliding shaft 2 are respectively located on the side of the two guide plates away from each other.

[0009] Preferably, guide grooves are provided on the inner walls on both sides of the handle frame and the surfaces of the two guide plates, anti-deflection plates are fixed to the ends of the sliding shaft one and the sliding shaft two, and the anti-deflection plates are slidably installed in the inner cavity of the guide grooves, and the sliding shaft one and the sliding shaft two are parallel to the grip rod.

[0010] Preferably, the clamping member includes two symmetrically distributed clamping arms, the clamping arms are in the shape of a letter "<" and the lower ends are in the shape of an arc, a ring is fixed in the middle of the clamping arm, the ring is rotatably sleeved on the outer side of the fixed shaft, and the inner wall of the arc-shaped portion at the lower end of the clamping arm is provided with friction grooves.

[0011] Preferably, the upper end of the clamping arm is rotatably connected to a linkage rod via a pin, and one end of the two linkage rods are movably sleeved on the outer side of the sliding shaft.

[0012] Preferably, a thrust spring is fixedly arranged between the upper ends of the two clamping arms, the two groups of clamping members are fixedly connected by a connecting rod, and the connecting rod is fixed to the lower ends of the clamping arms, and the upper half of the clamping arms on one group of clamping members is truncated.

[0013] Preferably, the extension arm is in a flat "匚" shape, and the end is set as a shaft rod, the extension arm is fixedly connected to the connecting rod, the laser transmitter is fixedly mounted on one end of the mounting seat, the mounting seat is in an "L" shape, and the corners are set to be rounded, a sleeve is fixed on the inner side of the rounded corner of the mounting seat, and the sleeve is rotatably mounted on the shaft rod at the end of the extension arm.

[0014] Preferably, a torsion spring is arranged between the sleeve and the extension arm, a rope pull shaft is fixed to the other end of the mounting seat, and the rope pull shaft is fixedly connected to the lower end of the adjustment rope, and limit plates are fixed at both ends of the rope pull shaft, and the limit plates are placed on the extension arm from top to bottom.

[0015] Preferably, a rope threading hole is penetrated through one end of the fixed shaft, and the inner walls on both sides of the rope threading hole form an "eight" shape, the middle part of the adjusting rope passes through the inner cavity of the rope threading hole and fits with its inner wall, and the lower half of the adjusting rope forms a forty-five degree angle with the extension arm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention clamps the clamping piece on the top crossbeam of the guardrail body. The staff holds the handle frame with one hand and uses the index finger to move the sliding shaft one to control the clamping force of the clamping piece, so as to adjust the inclination angle of the handle frame at any time. The staff uses the little finger to move the sliding shaft two to simultaneously adjust the emission angles of the two laser emitters. By controlling the lasers emitted by the two laser emitters to irradiate the same point, and then turning the handle frame until the lasers emitted by the laser emitters coincide with the bottom of the guardrail body, the inclination angle of the handle frame can be ensured to be consistent with the overall inclination angle of the guardrail body. At this time, the pointer remains vertical under the action of gravity. By detecting the inclination angle between the pointer and the handle frame, the overall inclination angle of the guardrail body, that is, the verticality of the guardrail body, can be detected. The device can be operated with only one hand and is simpler and faster than traditional detectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the clamping of the overall structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the handle frame structure of the present invention; Figure 4 It is a three-dimensional schematic diagram of the clamping member structure of the present invention; Figure 5 This is a schematic diagram of the laser transmitter structure installation of the present invention; Figure 6 This is a schematic diagram of the structural connection between the extension arm and the laser emitter of the present invention; Figure 7 It is a three-dimensional schematic diagram of the mounting seat structure of the present invention; Figure 8 It is a schematic diagram of the overall structure detection of the present invention.

[0018] In the figure: 1. guardrail body; 2. handle frame; 21. grip rod; 22. guide plate; 23. guide slide groove; 24. indicator plate; 25. scale; 3. fixed axis; 31. rope threading hole; 4. clamping part; 41. clamping arm; 42. ring; 43. friction pattern; 44. connecting rod; 45. thrust spring; 46. linkage rod; 47. slide shaft one; 471. anti-bias plate; 5. extension arm; 6. laser transmitter; 61. mounting seat; 62. sleeve; 63. torsion spring; 64. limit plate; 65. rope shaft; 7. adjustment rope; 71. slide shaft two; 8. pointer. DETAILED DESCRIPTION

[0019] In order to clearly and completely describe the objectives, technical solutions of the present invention, and make the advantages more clearly understood, the following further details the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1 to 8 , the present invention provides a technical solution: Embodiment 1, a vertical detection device for guardrails, comprising: a handle frame 2.

[0021] Specifically, the handle frame 2 is in a "C" shape with an opening downward. A fixed shaft 3 is fixed at the end of the handle frame 2. As Figure 3 shown, both ends of the fixed shaft 3 are fixedly connected to both ends of the handle frame 2 respectively. The fixed shaft 3 and the handle frame 2 form a "square" - shaped structure as a whole. At both ends of the fixed shaft 3, clamping members 4 are rotatably installed, and the clamping members 4 are symmetric with respect to the plane where the handle frame 2 is located. The clamping members 4 can be folded or unfolded by themselves, and during the folding or unfolding process of the clamping members 4, they always remain symmetric with respect to the plane where the handle frame 2 is located. On both sides of the clamping members 4, extension arms 5 are fixedly installed. At the end of the extension arms 5, laser emitters 6 are rotatably installed. The two laser emitters 6 are symmetric with respect to the plane where the handle frame 2 is located. Inside the handle frame 2, a first sliding shaft 47 and a second sliding shaft 71 are slidably installed. The first sliding shaft 47 drives the clamping members 4 to unfold, and the second sliding shaft 71 drives the laser emitter 6 to rotate around the end of the extension arm 5 through an adjusting pull - rope 7. As Figure 2 shown, a staff member can hold the handle frame 2 with the middle finger and ring finger of one hand in cooperation with the palm surface. The index finger toggles the first sliding shaft 47 to move, so as to control the unfolding and clamping of the clamping members 4. The little finger toggles the second sliding shaft 71 to adjust the angle of the laser emitted by the laser emitter 6. As Figure 1 shown, the dotted lines and the arrows on the dotted lines represent the path and direction of laser emission. The staff member can adjust the two laser emitters 6 to rotate in opposite directions simultaneously through the second sliding shaft 71; Secondly, the detection device is installed on the top cross - beam of the guardrail body 1 and clamped and fixed thereto. The handle frame 2 and the guardrail body 1 are coplanar as a whole. By adjusting the angle of the laser emitter 6, the lasers emitted by the two laser emitters 6 are made to coincide at a point. Then, the handle frame 2 is toggled to adjust the inclination angle of the handle frame 2 until the laser emitted by the laser emitter 6 coincides with the bottom of the guardrail body 1. As Figure 8As shown in the figure, two lasers form an included angle α, and the entire guardrail body 1 exactly coincides with the angular bisector of the included angle α. Also, since the two laser emitters 6 are symmetric with respect to the plane where the handle holder 2 is located, the handle holder 2 must be coplanar with the guardrail body 1. That is to say, the staff only needs to detect the inclination angle of the handle holder 2 at this time to know the inclination angle of the entire guardrail body 1, that is, the perpendicularity. Therefore, a pointer 8 is rotatably installed on the side surface of the handle holder 2, and the pointer 8 naturally hangs down under the action of gravity. No matter how large the inclination angle of the handle holder 2 is, the pointer 8 always remains vertical. Therefore, the included angle between the pointer 8 and the handle holder 2 is the inclination angle of the handle holder 2, that is, the perpendicularity of the entire guardrail body 1.

[0022] In order to measure the included angle between the pointer 8 and the handle holder 2, the present application also has an indicating disk 24 with a hollow structure fixedly inlaid on the side surface of the handle holder 2. The pointer 8 is located inside the indicating disk 24, and the upper end of the pointer 8 is rotatably connected to the inner wall of the indicating disk 24. A scale table 25 corresponding to the lower end of the pointer 8 is provided on the lower side of the inner wall of the indicating disk 24. A transparent cover plate is fixedly covered at the front opening of the indicating disk 24. As Figure 3 shown in the figure, when the pointer 8 coincides with the plane where the handle holder 2 is located, the scale indicated by the pointer 8 on the scale table 25 is zero. When the handle holder 2 is tilted, the included angle between the pointer 8 and the handle holder 2 can be displayed by the scale table 25. That is to say, the value indicated by the pointer 8 on the scale table 25 is the inclination angle (perpendicularity) of the entire guardrail body 1.

[0023] In order to install the first sliding shaft 47 and the second sliding shaft 71, the present application also has a grip rod 21 provided inside the handle holder 2 and parallel to the middle part thereof, which can ensure that the staff can stably hold the handle holder 2 with only one hand. Guide plates 22 are fixed at both ends of the grip rod 21, and the upper ends of the guide plates 22 are fixedly connected to the middle part of the handle holder 2. The first sliding shaft 47 and the second sliding shaft 71 are respectively located on the sides of the two guide plates 22 away from each other. As Figure 3 and Figure 2 shown in the figure, the two guide plates 22 can respectively guide the sliding of the first sliding shaft 47 and the second sliding shaft 71, ensuring that the first sliding shaft 47 and the second sliding shaft 71 always remain parallel to the grip rod 21.

[0024] In order to guide the sliding of the first sliding shaft 47 and the second sliding shaft 71, the present application also has guide sliding grooves 23 provided on the inner side walls of both sides of the handle holder 2 and on the surfaces of the two guide plates 22. Anti-deviation plates 471 are fixed at the ends of the first sliding shaft 47 and the second sliding shaft 71, and the anti-deviation plates 471 are slidably installed inside the guide sliding grooves 23. The first sliding shaft 47 and the second sliding shaft 71 are both parallel to the grip rod 21. As Figure 3 and Figure 4 shown in the figure, the anti-deviation plates 471 can only slide inside the guide sliding grooves 23 and will not be separated from them. The setting of the anti-deviation plates 471 can prevent the first sliding shaft 47 and the second sliding shaft 71 from tilting.

[0025] To improve the stability of the clamping of the top cross beam of the guardrail body 1 by the clamping member 4, the clamping member 4 of the present application includes two symmetrically distributed clamping arms 41. The clamping arms 41 are in the shape of "<" and the lower ends are arc-shaped. When the lower ends of the two clamping arms 41 approach each other, they can clamp and fix the cross beam at the top of the guardrail body 1. A collar 42 is fixed in the middle of the clamping arm 41, and the collar 42 is rotatably sleeved on the outside of the fixed shaft 3. As Figure 4 and Figure 2 shown, both clamping arms 41 rotate around the fixed shaft 3. Friction lines 43 are provided on the inner wall of the arc-shaped part at the lower end of the clamping arm 41. The friction lines 43 can be used to increase the friction between the lower end of the clamping arm 41 and the top cross beam of the guardrail body 1, and prevent relative displacement between the two easily.

[0026] To drive the folding or unfolding of the clamping member 4, the present application also has a linkage rod 46 rotatably connected to the upper end of the clamping arm 41 through a pin shaft. One end of each of the two linkage rods 46 is movably sleeved on the outside of the first sliding shaft 47. As Figure 4 and Figure 2 shown, when the first sliding shaft 47 moves up and down, it can drive the two linkage rods 46 to rotate and displace simultaneously, and then drive the two clamping arms 41 to rotate synchronously and reversely, so as to realize the folding or unfolding of the whole clamping member 4. And during the folding and unfolding process of the clamping member 4, the two clamping arms 41 always remain symmetric with the plane where the handle frame 2 is located as the symmetry plane. Therefore, when the clamping member 4 clamps and fixes the top cross beam of the guardrail body 1, the position of the handle frame 2 itself can be fixed and will not shift easily.

[0027] To ensure that the clamping member 4 can automatically clamp the top cross beam of the guardrail body 1, the present application also has a thrust spring 45 fixedly arranged between the upper ends of the clamping arms 41. As Figure 4 shown, the thrust spring 45 always provides a thrust, so that the upper ends of the two clamping arms 41 always have a tendency to move away from each other. Therefore, when there is no external interference, the clamping member 4 always remains in the folded state, that is, the clamping state of the top cross beam of the guardrail body 1. The two sets of clamping members 4 are fixedly connected by a connecting rod 44, and the connecting rod 44 is fixed to the lower end of the clamping arm 41. As Figure 2 and Figure 1 shown, setting two sets of clamping members 4 can clamp different points on the top cross beam of the guardrail body 1 respectively to ensure the overall stability of the device. And the upper half of the clamping arm 41 on one set of clamping members 4 is truncated. Only one first sliding shaft 47 is needed to drive the folding and unfolding of the two sets of clamping members 4. By truncating the upper half of the clamping arm 41 on one set of clamping members 4, it can avoid movement interference between the upper end of this set of clamping arms 41 and the second sliding shaft 71.

[0028] For the installation of the laser emitter 6, the extension arm 5 of the present application is in a flat "C" shape, and the end is provided as a shaft rod. The extension arm 5 is fixedly connected to the connecting rod 44. The laser emitter 6 is fixedly installed at one end of the mounting seat 61. The mounting seat 61 is in an "L" shape, and the corner is provided with a rounded corner. A sleeve 62 is fixedly installed inside the rounded corner of the mounting seat 61. The sleeve 62 is rotatably sleeved on the shaft rod at the end of the extension arm 5. As Figure 6 and Figure 7 shown, the laser emitter 6 and the mounting seat 61 can rotate around the axis of the sleeve 62. The staff only needs to control the rotation of the mounting seat 61 to adjust the angle of the laser emitter 6.

[0029] To reset the rotation of the mounting seat 61, the present application also has a torsion spring 63 provided between the sleeve 62 and the extension arm 5. The torsion spring 63 is used to reset the rotation of the mounting seat 61. A pull rope shaft 65 is fixedly installed at the other end of the mounting seat 61, and the pull rope shaft 65 is fixedly connected to the lower end of the adjusting pull rope 7. Limit plates 64 are fixedly installed at both ends of the pull rope shaft 65, and the limit plates 64 are placed on the extension arm 5 from top to bottom. As Figure 6 and Figure 7 shown, when the staff pulls the adjusting pull rope 7, the adjusting pull rope 7 can pull the mounting seat 61 to rotate through the pull rope shaft 65. When the staff releases the adjusting pull rope 7, the mounting seat 61 can automatically reset under the torsion of the torsion spring 63 until the limit plate 64 is placed on the extension arm 5.

[0030] To install the adjusting pull rope 7, the present application also has a rope passing hole 31 penetrating through one end of the fixed shaft 3, and the inner walls on both sides of the rope passing hole 31 form an "eight" shape. The middle part of the adjusting pull rope 7 passes through the inner cavity of the rope passing hole 31 and fits with its inner wall. An included angle of 45 degrees is formed between the lower half of the adjusting pull rope 7 and the extension arm 5. As Figure 3 and Figure 5 shown, the two adjusting pull ropes 7 can always remain symmetric, and the upper halves of the two adjusting pull ropes 7 coincide with the plane where the handle holder 2 is located. Therefore, the staff only needs to drive the sliding shaft two 71 to slide, and can simultaneously pull the two adjusting pull ropes 7, and then simultaneously adjust the two laser emitters 6 to rotate synchronously and in the opposite direction.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guardrail vertical detection device, characterized in that: Including: A handle frame (2), the handle frame (2) is in a "C" shape with an opening facing downwards. A fixed shaft (3) is fixed at the end of the handle frame (2). Clamping members (4) are rotatably installed at both ends of the fixed shaft (3), and the clamping members (4) are symmetric with respect to the plane where the handle frame (2) is located. Extension arms (5) are fixed on both sides of the clamping member (4). A laser emitter (6) is rotatably installed at the end of the extension arm (5). A first sliding shaft (47) and a second sliding shaft (71) are slidably installed inside the handle frame (2). The first sliding shaft (47) drives the clamping member (4) to expand, and the second sliding shaft (71) pulls the laser emitter (6) to rotate around the end of the extension arm (5) through an adjusting cable (7); The detection device is installed on the top cross beam of the guardrail body (1) and clamps and fixes it. The handle frame (2) and the guardrail body (1) are coplanar as a whole. A pointer (8) is rotatably installed on the side of the handle frame (2), and the pointer (8) naturally hangs down under the action of gravity.

2. A guardrail vertical detection device according to claim 1, characterized in that: An indicating disk (24) with a hollow structure is fixedly inlaid on the side of the handle frame (2). The pointer (8) is located inside the cavity of the indicating disk (24), and the upper end of the pointer (8) is rotatably connected to the inner wall of the indicating disk (24). A scale table (25) corresponding to the lower end of the pointer (8) is provided on the lower side of the inner wall of the indicating disk (24). A transparent cover plate is fixedly covered at the opening on the front of the indicating disk (24).

3. The guardrail vertical detection device according to claim 1, characterized in that: A grip bar (21) parallel to the middle part is arranged inside the handle frame (2). Guide plates (22) are fixed at both ends of the grip bar (21). The upper ends of the guide plates (22) are fixedly connected to the middle part of the handle frame (2). The first sliding shaft (47) and the second sliding shaft (71) are respectively located on the sides of the two guide plates (22) away from each other.

4. A guardrail vertical detection device according to claim 3, characterized in that: Guide sliding grooves (23) are provided on the inner side walls of both sides of the handle frame (2) and on the surfaces of the two guide plates (22). Anti-deviation plates (471) are fixed at the ends of the first sliding shaft (47) and the second sliding shaft (71), and the anti-deviation plates (471) are slidably installed inside the guide sliding grooves (23). The first sliding shaft (47) and the second sliding shaft (71) are both parallel to the grip bar (21).

5. The guardrail vertical detection device according to claim 1, characterized in that: The clamping member (4) includes two symmetrically distributed clamping arms (41). The clamping arms (41) are in a "<" shape and the lower ends are arc-shaped. A sleeve (42) is fixed in the middle of the clamping arm (41). The sleeve (42) is rotatably sleeved outside the fixed shaft (3). Friction lines (43) are provided on the inner wall of the arc-shaped part at the lower end of the clamping arm (41).

6. A guardrail vertical detection device according to claim 5, characterized in that: The upper end of the clamping arm (41) is rotatably connected to a linkage rod (46) through a pin shaft. One ends of the two linkage rods (46) are movably sleeved outside the first sliding shaft (47).

7. A guardrail vertical detection device according to claim 6, characterized in that: A thrust spring (45) is fixedly arranged between the upper ends of the two clamping arms (41). The two groups of clamping members (4) are fixedly connected through a connecting rod (44), and the connecting rod (44) is fixed to the lower end of the clamping arm (41). The upper half of the clamping arm (41) on one group of clamping members (4) is truncated.

8. The guardrail vertical detection device according to claim 7, characterized in that: The extension arm (5) is in a flat "C" shape, and its end is provided as a shaft rod. The extension arm (5) is fixedly connected to the connecting rod (44). The laser emitter (6) is fixedly installed at one end of the mounting seat (61). The mounting seat (61) is in an "L" shape, and the corner is provided with a rounded corner. A sleeve (62) is fixedly installed inside the rounded corner of the mounting seat (61). The sleeve (62) is rotatably sleeved on the shaft rod at the end of the extension arm (5).

9. A guardrail vertical detection device according to claim 8, characterized in that: A torsion spring (63) is arranged between the sleeve (62) and the extension arm (5). A pull rope shaft (65) is fixedly installed at the other end of the mounting seat (61), and the lower end of the adjusting pull rope (7) is fixedly connected to the pull rope shaft (65). Limit plates (64) are fixedly installed at both ends of the pull rope shaft (65), and the limit plates (64) are placed on the extension arm (5) from top to bottom.

10. A guardrail vertical detection device according to claim 9, characterized in that: A rope passing hole (31) is formed through one end of the fixed shaft (3), and the inner walls on both sides of the rope passing hole (31) form an "eight" shape. The middle part of the adjusting pull rope (7) passes through the inner cavity of the rope passing hole (31) and fits with its inner wall. A 45-degree angle is formed between the lower half of the adjusting pull rope (7) and the extension arm (5).

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