An expansion joint construction device

Abstract

This utility model belongs to the technical field of expansion joint construction equipment, specifically relating to an expansion joint construction device, including a base, a movable component disposed on the surface of the base, and a cleaning component. The surface of the base has a notch for placing the cleaning component. The cleaning component includes a cleaning disc vertically placed in the notch, a bracket for driving the vertical movement of the cleaning disc, and a driving component fixed on the surface of the bracket for driving the rotation of the cleaning disc. The outer surface of the cleaning disc is smooth, and the outer surface of the cleaning disc has multiple placement grooves circumferentially spaced around its axis. Each placement groove has a movable block, and one side surface of the movable block is covered with bristles. The outer surface of each movable block away from the axis of the cleaning disc is arc-shaped, and the end of each movable block near the axis of the cleaning disc is elastically hinged to the surface of the cleaning disc. By adopting the technical solution of this utility model, the problem of the cleaning disc not being well protected during the current expansion joint cleaning can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of expansion joint construction equipment, and specifically relates to an expansion joint construction device. Background Technology

[0002] In road construction, cutting expansion joints is a crucial step in ensuring the structural integrity of concrete pavements under temperature changes, loads, and material shrinkage. The function of expansion joints is to release stress and prevent irregular cracks caused by thermal expansion and contraction, thereby extending the road's service life. Currently, after a period of use, road expansion joints accumulate stones, dirt, and other debris, clogging them and hindering their function. Therefore, regular cleaning and maintenance are necessary. For example, a Chinese patent discloses a road and bridge expansion joint cleaning device (patent publication number: CN221855383U). This device features a protective chain cylinder that allows the cleaning disc to be inserted into the bridge expansion joint for cleaning, avoiding situations where narrow gaps cannot be cleaned. It also includes a hydraulic base that allows for the raising and lowering of the motor on the motor lifting plate, enabling the protective chain cylinder to reach deeper gaps for cleaning. When cleaning a flat surface, the protective chain can be retracted.

[0003] While the above-mentioned technical solutions can effectively clean expansion joints, it is difficult to precisely control the depth of the gap cleaning disc as it descends into the gap. Sometimes, the gap cleaning disc may come into contact with the bottom of the gap, causing damage to the surface of the gap cleaning disc during the contact process. At the same time, it may further cut the expansion joint, increasing the depth of the expansion joint and affecting road safety. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an expansion joint construction device that can effectively solve the problem that the cleaning disc cannot be well protected during the current expansion joint cleaning process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An expansion joint construction device includes a base, a movable component disposed on the surface of the base, and a cleaning component. The surface of the base has a notch for placing the cleaning component. The cleaning component includes a cleaning disc vertically placed in the notch, a bracket for driving the cleaning disc to move vertically, and a drive component fixed to the surface of the bracket for driving the cleaning disc to rotate. The outer surface of the cleaning disc is smooth, and the outer surface of the cleaning disc has a plurality of placement grooves spaced circumferentially around its axis. Each placement groove has a movable block, and one side surface of the movable block is covered with bristles. The outer surface of each movable block away from the axis of the cleaning disc is arc-shaped and protrudes from the outer surface of the cleaning disc. The end of each movable block near the axis of the cleaning disc is elastically hinged to the surface of the cleaning disc, and the other end gradually moves away from the axis of the cleaning disc. When the cleaning disc rotates, the free end of each movable block deflects under the action of centrifugal force and expands the cleaning radius of the cleaning disc.

[0007] Furthermore, each of the movable blocks has multiple grooves spaced along its length on its arc-shaped surface.

[0008] Furthermore, a baffle for partially blocking the surface of the cleaning tray is fixed on one side surface of the bracket. The surface of the baffle is provided with two spraying components facing the two ends of the cleaning tray respectively. The spraying components include multiple nozzles facing the end faces of the cleaning tray and a high-pressure water pump connected to each nozzle. Each nozzle is fixed on the surface of the baffle, and each movable block is within the spraying range of the nozzle. The high-pressure water pump is fixed on the surface of the base.

[0009] Furthermore, each of the movable blocks has a through hole on its surface that extends along its width direction.

[0010] Furthermore, the surface of the base is detachably connected to a collection housing disposed within a notch. The collection housing is located below the stop block, and a filter screen is provided at the bottom of the collection housing.

[0011] Furthermore, the surface of the base is provided with a support block, and two vertical connecting rods are provided between the support block and the surface of the base. The two connecting rods are symmetrically arranged about the axis of the notch length direction. The bracket is provided between the support block and the base, and the two sides of the bracket are slidably connected to the connecting rods respectively. The upper surface of the support block is provided with a telescopic rod, and the working end of the telescopic rod is vertically downward and fixedly connected to the bracket.

[0012] Furthermore, the driving component includes a drive motor fixed on the surface of the bracket and a pulley disposed at the output end of the drive motor, and a belt is used to drive the cleaning disc and the pulley.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention employs a movable block hinged to a cleaning disc. When the cleaning disc rotates, it drives the movable block to expand the cleaning radius under centrifugal force. Combined with the brush bristles and groove design, it can effectively remove various debris from the expansion joint. The elastic hinge design of the movable block allows it to automatically deflect when it contacts the bottom of the joint, protecting the cleaning disc and ensuring construction accuracy. The device is equipped with a high-pressure nozzle and a collection housing with a filter screen, achieving self-cleaning and impurity recovery functions. Stable drive and precise control are achieved through belt drive and a guiding mechanism, significantly improving the construction efficiency and quality of expansion joints.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning disc and movable block structure of this utility model;

[0020] Figure 4 This is a schematic diagram illustrating the method for removing the housing of this utility model.

[0021] The following labels are shown in the attached diagram:

[0022] 1. Base, 2. Notch, 3. Cleaning tray, 4. Bracket, 5. Placement slot, 6. Movable block, 7. Groove, 8. Baffle, 9. Nozzle, 10. High-pressure water pump, 11. Collection housing, 12. Filter screen, 13. Support block, 14. Connecting rod, 15. Telescopic rod, 16. Pulley, 17. Belt, 18. Drive motor. Detailed Implementation

[0023] like Figures 1-4 As shown,

[0024] An expansion joint construction device includes a base 1, a moving component disposed on the surface of the base 1, and a cleaning component. The moving component includes four wheels mounted on the base 1. The surface of the base 1 has a notch 2 for placing the cleaning component. The notch 2 is elongated, and its length axis coincides with the length axis of the base 1. The cleaning component includes a cleaning disc 3 vertically placed within the notch 2, a support 4 for driving the cleaning disc 3 vertically, and a driving component fixed to the surface of the support 4 for driving the cleaning disc 3 to rotate. The outer surface of the cleaning disc 3 is smooth, and the outer surface of the cleaning disc 3 has multiple placement grooves 5 spaced circumferentially around its axis. Each of the placement slots 5 is equipped with a movable block 6. The outer surface of each movable block 6 away from the axis of the cleaning tray 3 is arc-shaped and protrudes from the outer ring surface of the cleaning tray 3. The arc-shaped outer surface is covered with bristles (the bristles are not shown in the figure). One end of each movable block 6 near the axis of the cleaning tray 3 is elastically hinged to the surface of the cleaning tray 3 (a torsion spring is provided at the hinge between the movable block 6 and the cleaning tray 3, which is not shown in the figure). The other end gradually moves away from the axis of the cleaning tray 3 and is movably set. When the cleaning tray 3 rotates, the free end of each movable block 6 away from the axis of the cleaning tray 3 deflects under the action of centrifugal force and expands the cleaning radius of the cleaning tray 3 until the movable block 6 abuts against the surface of the cleaning tray 3.

[0025] As shown in the diagram, when cleaning the expansion joint is required, the base 1 is moved to the designated position using the moving component. Then, the drive unit is controlled to rotate the cleaning disc 3. Note the direction of rotation as follows: Figure 3 As shown, the control bracket 4 then drives the cleaning disc 3 to gradually descend and move towards the expansion joint. The cleaning disc 3 rotates at high speed under the action of the drive component, causing the free ends of each movable block 6 to rotate to their maximum angle under centrifugal force (in conjunction with...). Figure 3 As shown, at this point, the movable block 6 is in contact with the surface of the cleaning disc 3 and cannot rotate further. As the cleaning disc 3 rotates and extends into the expansion joint, each movable block 6 rotates synchronously, and the bristles on its outer surface can effectively remove the debris accumulated in the expansion joint. When the cleaning disc 3 is about to approach the bottom of the expansion joint, the arc-shaped side surface of each movable block 6 will contact the bottom of the expansion joint first. The movable block 6 that is in contact with the bottom of the expansion joint will deflect at a certain angle under its blocking effect, making it easier for the cleaning disc 3 to continue to move downward until any movable block 6 contacts the bottom of the expansion joint and completely resets. At this time, the cleaning disc 3 descends to the bottom. Since the arc-shaped surface of each movable block 6 protrudes from the outer ring surface of the cleaning disc 3, the outer ring surface of the cleaning disc 3 will not contact the bottom of the expansion joint, which can effectively protect the outer ring surface of the cleaning disc 3 from wear. At the same time, the bristles on the outer surface of each movable block 6 will not further cut the expansion joint, effectively ensuring the depth of the expansion joint.

[0026] In this embodiment, each of the movable blocks 6 has a plurality of grooves 7 spaced along its length on its arc-shaped surface.

[0027] As shown in the figure, the arrangement of multiple grooves 7 and the arc-shaped outer surface of the movable block 6 form an uneven surface, which can effectively improve the friction of the arc-shaped outer surface of each movable block 6, thereby indirectly improving the efficiency of cleaning the expansion joint when it rotates, and effectively removing some gravel or other impurities stuck in the expansion joint.

[0028] In this embodiment, a baffle 8 for partially blocking the surface of the cleaning tray 3 is fixed to one side surface of the bracket 4 by bolts. The surface of the baffle 8 is provided with two spraying components facing the two ends of the cleaning tray 3 respectively. The spraying components are symmetrically arranged about the cleaning tray 3. The spraying components include multiple nozzles 9 facing the end faces of the cleaning tray 3 and a high-pressure water pump 10 communicating with each nozzle 9. Each nozzle 9 is fixed to the surface of the baffle 8, and each movable block 6 is within the spraying range of the nozzle 9. The high-pressure water pump 10 is fixed to the surface of the base 1 by bolts.

[0029] As shown in the figure, when the cleaning disc 3 drives each movable block 6 to rotate and extend into the expansion joint, the bristles on each movable block 6 can clean up some loosely structured impurities (such as dirt, small gravel, etc.). With the help of multiple grooves 7, some gravel stuck in the expansion joint can be effectively cleaned up. Some impurities will inevitably adhere to the surface of the movable block 6 (for example, dirt will stick to the bristles). When the movable block 6 with impurities is rotated between the two spraying components, multiple nozzles 9 on both sides can spray high-pressure water to clean the movable block 6, effectively washing away the impurities attached to the surface of the movable block 6, and effectively ensuring the efficiency of each movable block 6 in cleaning the expansion joint.

[0030] In this embodiment, each of the movable blocks 6 has a through hole on its surface along its width direction, which can carry some impurities away from the expansion joint during the rotation process, thereby improving the efficiency of cleaning the expansion joint to a certain extent.

[0031] In this embodiment, the surface of the base 1 is detachably connected to a collection housing 11 disposed in the notch 2 by a snap fastener. The collection housing 11 is located below the block, and a filter screen 12 is provided at the bottom of the collection housing 11.

[0032] As shown in the figure, when the cleaning components on both sides of the cleaning disc 3 rinse the movable block 6, the impurities attached to the surface of the movable block 6 will fall freely under the rinsing of the high-pressure water on both sides. The collection housing 11 is located below the baffle, so the water carrying impurities will fall into the collection housing 11. The impurities will accumulate in the collection housing 11 under the action of the filter screen 12, preventing them from falling further and entering the expansion joint, thus effectively ensuring the cleaning efficiency. When the impurities in the collection housing 11 accumulate to a certain extent, the collection housing 11 can be removed by means of the buckle to clean the impurities. The operation process is simple and quick.

[0033] In this embodiment, a vertical support block 13 is fixed to the surface of the base 1 by bolts, and two vertical connecting rods 14 are provided between the support block 13 and the surface of the base 1. The two connecting rods 14 are symmetrically arranged about the axis of the length direction of the notch 2. The bracket 4 is arranged between the support block 13 and the base 1, and the two side surfaces of the bracket 4 are slidably connected to the corresponding connecting rods 14. The upper surface of the support block 13 is provided with a telescopic rod 15 (the telescopic rod 15 adopts a hydraulic telescopic cylinder), and the working end of the telescopic rod 15 is vertically downward and fixedly connected to the upper surface of the bracket 4 by bolts.

[0034] As shown in the figure, the cooperation of the telescopic rod 15 and the connecting rod 14 can stably and efficiently drive the bracket 4 to move in the vertical direction, and indirectly drive the cleaning disc 3 to penetrate into the expansion joint, thus ensuring the efficiency of cleaning the expansion joint.

[0035] In this embodiment, the driving component includes a drive motor 18 fixed to the surface of the bracket 4 by bolts and a pulley 16 disposed at the output end of the drive motor 18. A pulley 16 is also coaxially fixed to one side surface of the cleaning disc 3, and a belt 17 is connected between the two pulleys 16 for transmission.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An expansion joint construction device, comprising a base (1), a movable component disposed on the surface of the base (1), and a cleaning component, characterized in that: The base (1) has a notch (2) for placing a cleaning assembly. The cleaning assembly includes a cleaning disc (3) placed vertically in the notch (2), a bracket (4) for driving the cleaning disc (3) to move vertically, and a drive component fixed to the surface of the bracket (4) for driving the cleaning disc (3) to rotate. The outer surface of the cleaning disc (3) is smooth, and the outer surface of the cleaning disc (3) has a plurality of placement slots (5) spaced circumferentially around its axis. Each placement slot (5) is provided with a movable... Block (6), and one side surface of the movable block (6) is covered with bristles. The outer surface of each movable block (6) away from the axis of the cleaning disc (3) is arc-shaped and protrudes from the outer ring surface of the cleaning disc (3). One end of each movable block (6) near the axis of the cleaning disc (3) is elastically hinged to the surface of the cleaning disc (3), and the other end gradually moves away from the axis of the cleaning disc (3). When the cleaning disc (3) rotates, the free end of each movable block (6) deflects under the action of centrifugal force and expands the cleaning radius of the cleaning disc (3).

2. The expansion joint construction device according to claim 1, characterized in that: Each of the movable blocks (6) has multiple grooves (7) spaced along its length on its arc-shaped surface.

3. The expansion joint construction device according to claim 2, characterized in that: A baffle (8) for partially blocking the surface of the cleaning tray (3) is fixed on one side surface of the bracket (4). The surface of the baffle (8) is provided with two spraying components facing the two ends of the cleaning tray (3). The spraying components include multiple nozzles (9) facing the end of the cleaning tray (3) and a high-pressure water pump (10) connected to each nozzle (9). Each nozzle (9) is fixed on the surface of the baffle (8), and each movable block (6) is within the spraying range of the nozzle (9). The high-pressure water pump (10) is fixed on the surface of the base (1).

4. The expansion joint construction device according to claim 3, characterized in that: Each of the movable blocks (6) has a through hole on its surface, which is arranged along its width direction.

5. The expansion joint construction device according to claim 4, characterized in that: The surface of the base (1) is detachably connected to a collection housing (11) disposed in the notch (2). The collection housing (11) is located below the stop block, and a filter screen (12) is provided at the bottom of the collection housing (11).

6. The expansion joint construction device according to claim 1, characterized in that: The base (1) has a support block (13) on its surface, and two vertical connecting rods (14) are provided between the support block (13) and the surface of the base (1). The two connecting rods (14) are symmetrically arranged about the axis of the length direction of the notch (2). The bracket (4) is provided between the support block (13) and the base (1), and the two sides of the bracket (4) are slidably connected to the connecting rods (14) respectively. The upper surface of the support block (13) has a telescopic rod (15), and the working end of the telescopic rod (15) is vertically downward and fixedly connected to the bracket (4).

7. The expansion joint construction device according to claim 6, characterized in that: The driving component includes a drive motor (18) fixed on the surface of the bracket (4) and a pulley (16) disposed at the output end of the drive motor (18). A belt (17) is connected between the cleaning disc (3) and the pulley (16).

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