Municipal bridge expansion joint width real-time distance measuring device

Abstract

The utility model relates to the technical field of expansion joint distance measurement, in particular to a municipal bridge expansion joint width real-time distance measurement device, which comprises two grab handles, a measuring mechanism is fixed at the rear end of each grab handle, a supporting mechanism is fixed at the rear end of each measuring mechanism, and an inner supporting rod mechanism is mounted between the two supporting mechanisms. An outer supporting rod mechanism is installed between the two measuring mechanisms. The measuring mechanism comprises a mounting seat and a connecting plate, the connecting plate is fixed at the rear end of the mounting seat, positioning seats are fixed on two sides of the front end of the connecting plate, a laser range finder is mounted on the inner side of the mounting seat, a detection bolt is in threaded connection with the middle of the outer side of each positioning seat, and a lead rod is fixed at the front end of each detection bolt. And the device can change along with the width change of the expansion joint, so that the actual width of the expansion joint can be truly reflected by the measurement data, and a reliable basis is provided for municipal bridge maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to expansion joint ranging technical field, concretely is a municipal bridge expansion joint width real -time ranging device. BACKGROUND

[0002] The municipal bridge is the key hub of city traffic, and the stability and safety of its structure are very important, the expansion joint is widely arranged in the bridge span connection of bridge structure, that is the connecting place between the adjacent two span bridge structures "beam and beam", this is the most important and common setting position of expansion joint,

[0003] The municipal bridge is generally located at a higher position, and there is a large space between the beam and the side surface of the beam, which provides sufficient space conditions for relevant operations, however, the surface of the beam and the side surface of the beam is relatively smooth, which brings great difficulty to the fixation of the measuring device.

[0004] In view of the smoothness of the beam and the side surface of the beam of the municipal bridge, the existing technology adopts a non-contact measuring method, among which, the common method is to embed an infrared distance sensor inside the expansion joint, aiming at accurately measuring the width of the expansion joint in real time, so as to achieve the purpose of monitoring the width of the expansion joint of the municipal bridge, however, in actual application, the traffic on the municipal bridge is continuous, and the trucks frequently pass through, which produces strong and continuous vibration, this vibration often causes the position of the non-contact measuring device embedded inside the expansion joint of the side surface of the bridge to deviate, and further changes the measurement reference, which seriously affects the ranging accuracy. In this way, the measurement data cannot truly present the actual width change of the expansion joint;

[0005] Therefore, the municipal bridge expansion joint width real -time ranging device is proposed for the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a municipal bridge expansion joint width real -time ranging device to solve the problems in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A real-time distance measuring device for the width of expansion joints in municipal bridges includes two handles. A measuring mechanism is fixed to the rear end of each handle, and a support mechanism is fixed to the rear end of each measuring mechanism. An inner strut mechanism is installed between the two support mechanisms, and an outer strut mechanism is installed between the two measuring mechanisms. Each measuring mechanism includes a mounting base and a connecting plate. The connecting plate is fixed to the rear end of the mounting base, and positioning seats are fixed to both sides of the front end of the connecting plate. A laser rangefinder is mounted on the inner side of the mounting base, and a detection bolt is threaded to the center of the outer side of the positioning seat. A lead rod is fixed to the front end of the detection bolt. The support mechanism includes a support plate with a receiving cavity on its inner side. A groove, a toothed groove, and a buffer cavity are formed at the front end of the support plate. A scraper is fixed to the inner wall of the buffer cavity near the receiving cavity. An installation cavity is formed on the back of the support plate, and a rubber plate is fixed to the inner side of the installation cavity.

[0009] As a further optimization of this utility model, the inner support rod mechanism includes an inner support seat located between two support plates. Both ends of the inner support seat are hinged with spring telescopic rods, and the telescopic ends of the spring telescopic rods are hinged with connecting seats. The connecting seats are fixedly connected to the storage cavity.

[0010] As a further optimization of this utility model, the external support rod mechanism includes a positioning rod, the end of which extends to the inner side of the positioning seat. The positioning rod and the positioning seat are slidably connected. A detection cavity is formed on the outer wall of the positioning rod near the detection bolt. A detection paper is fixed inside the detection cavity. An adjusting sleeve is fixed in the middle of the outer side of the positioning rod. Both ends of the inner side of the adjusting sleeve are threaded with adjusting cylinders. A support spring is fixed at one end of the adjusting cylinder. The support spring is sleeved on the outside of the positioning rod, and one end of the support spring is in contact with one end of the positioning seat.

[0011] As a further optimization of this utility model, the inner side of the support plate has an arc-shaped structure, the support plate is fixedly connected to the connecting plate, the tooth groove is located in the middle of the inclined groove, and the buffer cavity is located behind the inclined groove.

[0012] As a further optimization of this utility model, the following features are provided: multiple rubber plates are arranged linearly on the inner side of the mounting cavity, the rubber plates extend to the outside of the support plate, and the rubber plates are parallel to each other with respect to the mounting cavity.

[0013] As the further optimization of the utility model, wherein: two mounting seats are symmetrically distributed left and right, the inner side of the mounting seat is a cavity structure, the laser range finder is fixedly arranged at the inner side of the left mounting seat, the detection end of the laser range finder corresponds to the center of the inner side of the right mounting seat, the axis of the lead rod and the axis of the detection bolt are located on the same central axis, the detection bolt and the detection cavity are in sliding fit, the lead rod is located in the inside of the positioning seat, and the front end of the lead rod is attached to the surface of the detection paper.

[0014] As the further optimization of the utility model, wherein: the inner side of the adjusting cylinder and the outer side of the positioning rod are in rotary fit, and the axis of the adjusting cylinder and the axis of the positioning rod are located on the same central axis.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] In the utility model, through cooperation of the supporting mechanism and the measuring mechanism, foreign matters can be removed and impact can be buffered by the front end structure of the supporting plate, the rubber plate increases friction force, and the device is prevented from sliding downward, the problem that the measuring device is difficult to fix on the smooth bridge side is solved, the inner supporting rod mechanism and the outer supporting rod mechanism are arranged, and through the elasticity and supporting force, vibration is buffered, the influence on the measuring precision is reduced, the measuring device can also change with the width of the expansion joint, the measuring data can truly reflect the actual width of the expansion joint, and reliable basis is provided for municipal bridge maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the whole demonstration structure schematic diagram of the utility model;

[0019] Figure 3 It is the structure schematic diagram of the supporting mechanism of the utility model;

[0020] Figure 4 It is the back structure schematic diagram of the supporting mechanism of the utility model;

[0021] Figure 5 It is the combined structure schematic diagram of the measuring mechanism and the outer supporting rod mechanism of the utility model;

[0022] Figure 6 It is the schematic diagram of the structure mounting seat of the utility model;

[0023] Figure 7 It is the structure schematic diagram of the detection bolt of the utility model;

[0024] Figure 8 It is the structure schematic diagram of the outer supporting rod mechanism of the utility model;

[0025] Figure 9 It is a structural schematic view of the inner supporting rod mechanism.

[0026] In the figure: 1, handle;

[0027] 2, measuring mechanism; 21, mounting seat; 22, connecting plate; 23, positioning seat; 24, laser range finder; 25, detection bolt; 26, lead rod;

[0028] 3, supporting mechanism; 31, supporting plate; 32, storage cavity; 33, inclined groove; 34, tooth groove; 35, buffer cavity; 36, scraper; 37, mounting cavity; 38, rubber plate;

[0029] 4, inner supporting rod mechanism; 41, inner supporting seat; 42, spring telescopic rod; 43, connecting seat;

[0030] 5, outer supporting rod mechanism; 51, positioning rod; 52, detection cavity; 53, detection paper; 54, adjusting sleeve; 55, adjusting cylinder; 56, supporting spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0033] Please refer to Figures 1-9 The utility model provides a technical scheme:

[0034] The utility model provides a kind of municipal bridge expansion joint width real-time ranging device, including handle 1, the quantity of handle 1 is provided with two, the rear end of each handle 1 is fixed with measuring mechanism 2, the rear end of measuring mechanism 2 is fixed with support mechanism 3, inner bracing rod mechanism 4 is installed between two support mechanisms 3, outer bracing rod mechanism 5 is installed between two measuring mechanisms 2;Measuring mechanism 2 includes mounting seat 21 and connecting plate 22, the rear end of mounting seat 21 is fixed with connecting plate 22, the both sides of the front end of connecting plate 22 are fixed with positioning seat 23, laser range finder 24 is installed on the inner side of mounting seat 21, detection bolt 25 is screw-connected in the middle part of the outer side of positioning seat 23, the front end of detection bolt 25 is fixed with lead rod 26;Support mechanism 3 includes bracing plate 31, the inner side of bracing plate 31 is provided with receiving cavity 32, the front end of bracing plate 31 is provided with inclined slot 33, tooth slot 34 and buffer cavity 35, scraper 36 is fixed on the inner wall of buffer cavity 35 close to receiving cavity 32, installation cavity 37 is set up on the back of bracing plate 31, and rubber plate 38 is fixed on the inner side of installation cavity 37.

[0035] As further implementation of the scheme, inner bracing rod mechanism 4 includes inner bracing seat 41, inner bracing seat 41 is located between two bracing plates 31, spring telescopic rod 42 is hinged on the both ends of inner bracing seat 41, and connecting seat 43 is hinged on the telescopic end of spring telescopic rod 42, and connecting seat 43 is fixedly connected with receiving cavity 32;

[0036] Specifically, the telescopic property of spring telescopic rod 42 is utilized to provide uniform and stable support force to bracing plate 31, which not only makes bracing plate 31 fit the inner wall of expansion joint more closely, ensures that the device is stable in expansion joint, but also effectively buffers the vibration caused by truck passing, reduces the influence of vibration on measurement accuracy;

[0037] As further implementation of the scheme, outer bracing rod mechanism 5 includes positioning rod 51, the end of positioning rod 51 extends to the inner side of positioning seat 23, positioning rod 51 is slidably connected with positioning seat 23, detection cavity 52 is formed on the outer wall of positioning rod 51 close to detection bolt 25, detection paper 53 is fixed in the inner side of detection cavity 52, adjusting sleeve 54 is fixed on the middle part of the outer side of positioning rod 51, adjusting sleeve 54 is fixedly connected with adjusting cylinder 55 at the both ends of the inner side, the inner side of adjusting cylinder 55 is rotatably connected with the outer side of positioning rod 51, the axis of adjusting cylinder 55 and the axis of positioning rod 51 are located on the same central axis, support spring 56 is fixed on one end of adjusting cylinder 55, support spring 56 is sleeved on the outer part of positioning rod 51, and one end of support spring 56 is fitted with one end of positioning seat 23;

[0038] Specifically, the positioning rod 51 of the outer support rod mechanism 5 is in sliding fit with the positioning seat 23, can sensitively perceive the width change of the expansion joint, the detection cavity 52 and the detection paper 53 record displacement auxiliary measurement, the adjusting sleeve 54 and the adjusting cylinder 55 can flexibly adjust the compression degree of the supporting spring 56, and reliable external supporting force is provided for the support plate 31, which not only enhances the stability of the device in the expansion joint, but also compensates the elastic loss of the supporting spring 56 according to the use condition;

[0039] As a further implementation of the present scheme, the inner side of the support plate 31 is arc-shaped structure, the support plate 31 is fixedly connected with the connecting plate 22, the tooth groove 34 is located in the middle of the inclined groove 33, and the buffer cavity 35 is located behind the inclined groove 33.

[0040] Specifically, the tooth groove 34 is in the middle of the inclined groove 33, and when the support plate 31 is inserted into the expansion joint, the foreign matter in the inner wall can be effectively removed, the inclined groove 33 guides the foreign matter to fall, and the buffer cavity 35 is behind the inclined groove 33, which can buffer the impact force when inserting, protect the support plate 31, and ensure the normal installation and use of the device in the expansion joint.

[0041] As a further implementation of the present scheme, a plurality of rubber plates 38 are arranged in the inner side of the installation cavity 37, the plurality of rubber plates 38 are linearly arranged, the rubber plates 38 extend to the outside of the support plate 31, and the rubber plates 38 and the installation cavity 37 are parallel to each other.

[0042] Specifically, the rubber plates 38 arranged in this way significantly increase the friction between the support plate 31 and the inner wall of the expansion joint, which effectively prevents the device from sliding down in the expansion joint, ensures the position stability of the device in complex environment, and provides reliable guarantee for accurate measurement.

[0043] As a further implementation of the present scheme, the two installation seats 21 are symmetrically distributed left and right, the inner side of the installation seat 21 is a cavity structure, the laser range finder 24 is fixedly arranged in the inner side of the left installation seat 21, the detection end of the laser range finder 24 corresponds to the center of the inner side of the right installation seat 21, the axis of the lead rod 26 and the axis of the detection bolt 25 are located on the same central axis, the detection bolt 25 is in sliding fit with the detection cavity 52, the lead rod 26 is located in the inner side of the positioning seat 23, and the front end of the lead rod 26 is attached to the surface of the detection paper 53.

[0044] Specifically, the installation seat 21 in the measuring mechanism 2 is symmetrically distributed left and right and has a cavity structure in the inner side, and the laser range finder 24 fixedly arranged in the left installation seat 21 can accurately measure the width of the expansion joint, the lead rod 26 and the detection bolt 25 have the same axis, and the front end of the lead rod 26 is attached to the detection paper 53. When the laser range finder 24 cannot work normally due to unexpected circumstances (such as power consumption), the lead rod 26 can draw the moving track of the positioning rod 51 on the detection paper 53 by contacting the detection paper 53, and the displacement condition caused by the width change of the expansion joint is recorded, thereby providing double protection for the measurement work.

[0045] Workflow: The laser range finder 24 is fixedly installed on the inner side of the left mounting seat 21, and the detection end thereof is accurately aligned with the center of the inner side of the right mounting seat 21, thereby providing a main data source for subsequent measurement of the expansion joint width;

[0046] The operator holds the two handles 1 and moves the two support mechanisms 3 closer to each other, in the process, the spring telescopic rod 42 of the inner support rod mechanism 4 is compressed due to the approach of the support plate 31, and the support spring 56 of the outer support rod mechanism 5 is also compressed synchronously, thereby reducing the distance between the two support mechanisms 3, facilitating the insertion of the support plate 31 into the side expansion joint between the municipal bridge beams, and slowly inserting the support plate 31 into the expansion joint, in the process of insertion, the tooth groove 34 at the front end of the support plate 31 first contacts the inner wall of the expansion joint, and removes the foreign matter such as gravel particles attached to the inner wall, the inclined structure of the inclined groove 33 enables the removed foreign matter to fall smoothly, without hindering the forward movement of the support plate 31, and the buffer cavity 35 provides a buffer for the front end of the support plate 31, avoiding damage to the support plate 31 due to excessive impact force during insertion, at the same time, the scraper 36 on the inner wall of the buffer cavity 35 close to the storage cavity 32 side will scrape off the dust attached to the inner wall of the expansion joint, further cleaning the measurement environment;

[0047] When the support plate 31 is inserted to the appropriate depth, the operator releases the handle 1, at this time, the spring telescopic rod 42 of the inner support rod mechanism 4 and the support spring 56 of the outer support rod mechanism 5 begin to reset and stretch, in the inner support rod mechanism 4, the spring telescopic rod 42 is hinged at one end to the inner support seat 41, and the telescopic end at the other end is hinged to the connecting seat 43, the connecting seat 43 is fixedly connected to the storage cavity 32 on the inner side of the support plate 31, as the spring telescopic rod 42 stretches, the generated thrust is transmitted to the support plate 31 through the connecting seat 43, providing internal support to the support plate 31, making the support plate 31 more closely fit the inner wall of the expansion joint, in the outer support rod mechanism 5, the positioning rod 51 extends to the inner side of the positioning seat 23 and is slidably connected thereto, the support spring 56 is sleeved outside the positioning rod 51, one end of which is fixed to the adjusting cylinder 55, and the other end is in close contact with one end of the positioning seat 23, when the support spring 56 stretches, it provides outward support to the positioning rod 51, and further provides external support to the support plate 31, enhancing the stability of the device in the expansion joint, at the same time, the elasticity and stretchability of the inner support rod mechanism 4 and the outer support rod mechanism 5 can effectively reduce the influence of external factors such as truck driving, and can change accordingly with the change of the width of the expansion joint;

[0048] The laser range finder 24 starts to work, the detection end thereof is directly irradiated at the center of the inner side of the right mounting seat 21, the distance change between the two mounting seats 21 is measured in real time, thereby the main data of the expansion joint width is acquired, since the expansion joint width of the municipal bridge changes, the positioning rod 51 moves relative to the positioning seat 23, at this time, the lead rod 26 fixedly connected with the detection bolt 25 and coaxial with the axis, the front end thereof is closely attached to the surface of the detection paper 53, and the moving track of the positioning rod 51 is drawn on the detection paper 53, through the analysis of the track on the detection paper 53, the change condition of the expansion joint width can be assisted to measure.

[0049] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A municipal bridge expansion joint width real-time ranging device, characterized in that: The utility model provides a kind of measuring device, including handle (1), the quantity of the handle (1) is provided with two, the rear end of each handle (1) is fixed with measuring mechanism (2), the rear end of measuring mechanism (2) is fixed with support mechanism (3), inner support rod mechanism (4) is installed between two support mechanism (3), outer support rod mechanism (5) is installed between two measuring mechanism (2); The measuring mechanism (2) includes a mounting seat (21) and a connecting plate (22), the rear end of the mounting seat (21) is fixed with the connecting plate (22), the connecting plate (22) is fixed with a positioning seat (23) on both sides of the front end, the inner side of the mounting seat (21) is provided with a laser range finder (24), the outer side of the positioning seat (23) is provided with a detection bolt (25), and the front end of the detection bolt (25) is fixed with a lead rod (26). The support mechanism (3) includes a support plate (31), the inner side of the support plate (31) is provided with a receiving cavity (32), the front end of the support plate (31) is provided with an inclined groove (33), a tooth groove (34) and a buffer cavity (35), the inner wall of the buffer cavity (35) is fixed with a scraper (36) near the receiving cavity (32), the back of the support plate (31) is provided with a mounting cavity (37), and the inner side of the mounting cavity (37) is fixed with a rubber plate (38).

2. The real-time distance measuring device for the width of the expansion joint of the municipal bridge according to claim 1, characterized in that: The inner support rod mechanism (4) includes an inner support seat (41), the inner support seat (41) is located between two support plates (31), and the two ends of the inner support seat (41) are hingedly connected with spring telescopic rods (42). The telescopic end of the spring telescopic rod (42) is hingedly connected with a connecting seat (43), and the connecting seat (43) is fixedly connected with the receiving cavity (32).

3. The real-time distance measuring device for the width of the expansion joint of the municipal bridge according to claim 1, characterized in that: The outer support rod mechanism (5) includes a positioning rod (51), the end of the positioning rod (51) extends to the inner side of the positioning seat (23), the positioning rod (51) is slidably connected with the positioning seat (23), the outer wall of the positioning rod (51) is provided with a detection cavity (52) near the detection bolt (25), the inner side of the detection cavity (52) is fixed with a detection paper (53), the outer side of the positioning rod (51) is fixed with an adjusting sleeve (54), the inner side of the adjusting sleeve (54) is threadedly connected with adjusting barrels (55) at both ends, one end of the adjusting barrel (55) is fixed with a supporting spring (56), the supporting spring (56) is sleeved on the outer side of the positioning rod (51), and one end of the supporting spring (56) is attached to one end of the positioning seat (23).

4. The real-time distance measuring device for the width of the expansion joint of the municipal bridge according to claim 1, characterized in that: The inner side of the support plate (31) is arc-shaped, the support plate (31) is fixedly connected with the connecting plate (22), the tooth groove (34) is located in the middle of the inclined groove (33), and the buffer cavity (35) is located behind the inclined groove (33).

5. The real-time distance measuring device for the width of the expansion joint of the municipal bridge according to claim 1, characterized in that: The inner side of the mounting cavity (37) is provided with a plurality of rubber plates (38), the plurality of rubber plates (38) are linearly arranged, the rubber plates (38) extend to the outside of the support plate (31), and the rubber plates (38) are parallel to each other.

6. The real-time distance measuring device for the width of a municipal bridge expansion joint according to claim 1, characterized in that: Two said mounting seat (21) are symmetrical distribution, the inner side of said mounting seat (21) is cavity structure, the laser range finder (24) is fixedly arranged at the inner side of left mounting seat (21), the detection end of the laser range finder (24) corresponds to the center of the inner side of right mounting seat (21), the axis of the lead rod (26) and the axis of the detection bolt (25) are located on the same central axis, the detection bolt (25) and the detection cavity (52) are slidingly fitted, the lead rod (26) is located in the inside of the positioning seat (23), the front end of the lead rod (26) is attached to the surface of the detection paper (53).

7. The real-time distance measuring device for the width of the expansion joint of the municipal bridge according to claim 3, characterized in that: The inner side of the adjusting cylinder (55) is rotatably connected with the outer side of the positioning rod (51), and the axis of the adjusting cylinder (55) and the axis of the positioning rod (51) are located on the same central axis.

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