Crack repairing device for road pavement
By designing the adjustment unit and the contact unit, the problems of equipment damage and complex operation when repairing the curbstone position of the existing device are solved, and the flexible adjustment and simple operation of the equipment at the bend are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI YUNYANG CONSTR ENG CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-21
AI Technical Summary
Existing road crack repair devices are prone to damage when the injection head scrapes against the curbstone due to operational errors when repairing near the curbstone. Furthermore, the adjustment of the protective contact parts is complicated and unsuitable for curves.
The design incorporates an adjustment unit and abutment unit, including a strip box, lead screw, protrusion block, L-shaped support arm, connecting crossbar, telescopic rod, vertical hinge seat, abutment roller, and support spring. Through the cooperation of these components, the injection head can be flexibly adjusted and protected against impact, adapting to curb stones at bends.
The operation of the protective contact parts has been simplified, the applicability of the equipment at bends has been improved, collision damage between the injection head and the curbstone has been avoided, and the operation is simple and labor-saving.
Smart Images

Figure CN224148508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road repair equipment technology, and in particular to a device for repairing cracks in road surfaces. Background Technology
[0002] The presence of cracks on the road not only affects the aesthetics of the road but also shortens the service life of the road surface. In order to prevent the cracks from deteriorating further, it is necessary to repair the road cracks in a timely manner. Road crack repair devices are one of the commonly used tools for crack repair. However, there are still some problems with current road crack repair devices. When repairing cracks near the curb at the edge of the road, because the road crack repair device is too close to the curb, if the operation is wrong and the crack repair device moves and shifts, the injection head may scrape against the curb and cause damage.
[0003] Publication number CN221740871U discloses a high-efficiency road repair device, relating to the field of road repair equipment. The device includes a base, rollers mounted on the bottom of the base, and a storage box fixedly connected to the top of the base. A material pump is installed on one side of the storage box, and a delivery pipe is connected to one side of the pump. An injection head is connected to the end of the delivery pipe away from the pump. Auxiliary mechanisms are symmetrically arranged on both sides of the storage box to facilitate repairing cracks near the curb stones at the road edge. In use, the high-efficiency road repair device first loads road crack repair material into the storage box. Then, the device is moved to the area requiring repair. When repairing cracks on a normal road surface, the injection head is aligned with the crack, and the material pump is activated. The pump delivers the repair material from the delivery pipe to the injection head and injects it into the crack, thus achieving crack repair.
[0004] While the above solution avoids damage to the injection components, the adjustment of the protective contact components is complicated and it is not suitable for curb stones at bends. Therefore, we propose a crack repair device for road surfaces. Utility Model Content
[0005] The main purpose of this utility model is to provide a device for repairing cracks in road surfaces. By setting up an adjustment unit and an abutment unit, it solves the problems that the adjustment operation of the protective abutment component is complicated and it is not suitable for curb stones at bends.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a crack repair device for road surface, including a support base, a storage bucket fixedly installed on the top surface of the support base, a conveying pump connected to the storage bucket through a pipe, and an injection head installed at the output end of the conveying pump and located outside the support base, and further including: an adjustment unit and an abutment unit installed on the support base.
[0007] The adjustment unit includes a strip box, a lead screw, a protruding block, an L-shaped support arm, and a connecting crossbar. The top surface of the bearing seat has two symmetrically opened strip-shaped notches. There are two strip boxes, which are symmetrically fixed on the top surface of the bearing seat. The lead screw is installed on one of the strip boxes through a bearing. There are two protruding blocks, which are located on the two strip boxes respectively. One of the protruding blocks is threadedly connected to the lead screw. The two L-shaped support arms are distributed and fixedly installed on the top of the two protruding blocks and are located in the two strip notches respectively. The connecting crossbar is fixedly installed at the bottom of the two L-shaped support arms and located below the bearing seat.
[0008] The abutment unit includes a telescopic rod, a vertical hinge seat, an abutment roller, and a support spring. The telescopic rod is fixedly installed on the side of the L-shaped support arm, the vertical hinge seat is fixedly installed on the end face of the telescopic rod, the abutment roller is installed on the vertical hinge seat through a hinge rod, and the support spring is fixedly installed between the L-shaped support arm and the vertical hinge seat. The abutment unit is arranged in a one-to-one correspondence with the L-shaped support arm.
[0009] Preferably, the adjustment unit further includes a guide rod, which is fixedly disposed in another strip box and movably passes through another protrusion.
[0010] Preferably, a turntable is fixedly installed at one end of the lead screw located outside the strip box.
[0011] Preferably, each pair of telescopic rods forms a group and is symmetrically distributed on one of the L-shaped support arms.
[0012] Preferably, the telescopic rod and the lead screw are arranged parallel to each other.
[0013] Preferably, a stirring assembly is installed on the support base.
[0014] Preferably, casters are installed on the bottom surface of the support base.
[0015] Compared with the prior art, the present invention provides a crack repair device for road surfaces, which has the following advantages:
[0016] 1. In this utility model, by setting an adjustment unit, by holding the lead screw on the outside of the strip box and rotating it forward and backward, one of the protrusions connected to the lead screw can be moved and adjusted on the strip box by hand. The L-shaped support arm can be moved and adjusted within the strip notch by being driven by the protrusion. The connecting crossbar fixedly set at the bottom of the two L-shaped support arms and located below the bearing seat can be adjusted synchronously with the two protrusions and the two L-shaped support arms. The guide rod can guide the other protrusion to slide and move in coordination with the adjustment of the L-shaped support arm and provide auxiliary support for it. The two abutment units can be adjusted and stored with the L-shaped support arms. The equipment makes the adjustment operation of the protective abutment parts simple and labor-saving.
[0017] 2. In this utility model, by setting an abutment unit, the telescopic rod and the vertical hinge seat can be adjusted with the L-shaped support arm so that the injection head contacts the curbstone beforehand. The abutment roller installed on the vertical hinge seat by the hinge rod can roll on the curbstone to cooperate with the movement of the equipment. The support spring fixed between the L-shaped support arm and the vertical hinge seat can deform and extend. The vertical hinge seat and the abutment roller can freely adjust the distance between themselves and the bearing seat within a certain range. The telescopic rod extends and retracts synchronously with the support spring. The protective abutment component in the equipment can be freely adjusted and is flexible enough to be suitable for curbstones at bends. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of a road surface crack repair device according to the present invention.
[0020] Figure 2 This is a top view schematic diagram of a road surface crack repair device according to the present invention;
[0021] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0022] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure at point BB;
[0023] Figure 5 This is a front view schematic diagram of a road surface crack repair device according to the present invention.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Support base;
[0026] 2. Storage bins;
[0027] 3. Transfer pump;
[0028] 4. Injection head;
[0029] 5. Adjustment unit; 501. Strip box; 502. Lead screw; 503. Protrusion block; 504. L-shaped support arm; 505. Connecting crossbar; 506. Guide rod;
[0030] 6. Abutment unit; 601. Telescopic rod; 602. Vertical hinge seat; 603. Abutment roller; 604. Support spring;
[0031] 7. Turntable;
[0032] 8. Stirring assembly;
[0033] 9. Casters. Detailed Implementation
[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0037] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, a crack repair device for road surface includes a support 1, a storage tank 2 fixedly installed on the top surface of the support 1, a delivery pump 3 connected to the storage tank 2 via a pipe, and an injection head 4 installed at the output end of the delivery pump 3 and located outside the support 1. It also includes an adjustment unit 5 and an abutment unit 6 installed on the support 1.
[0038] The adjustment unit 5 includes a strip box 501, a lead screw 502, a protrusion 503, an L-shaped support arm 504, and a connecting crossbar 505. The top surface of the bearing seat 1 has two symmetrical strip-shaped notches. There are two strip boxes 501, which are symmetrically fixed on the top surface of the bearing seat 1. The lead screw 502 is installed on one of the strip boxes 501 by bearing. There are two protrusions 503, which are located on the two strip boxes 501 respectively. One of the protrusions 503 is threadedly connected to the lead screw 502. The two L-shaped support arms 504 are distributed and fixedly installed on the top of the two protrusions 503 and are located in the two strip notches respectively. The connecting crossbar 505 is fixedly installed at the bottom of the two L-shaped support arms 504 and is located below the bearing seat 1.
[0039] The abutment unit 6 includes a telescopic rod 601, a vertical hinge seat 602, an abutment roller 603, and a support spring 604. The telescopic rod 601 is fixedly installed on the side of the L-shaped support arm 504, the vertical hinge seat 602 is fixedly installed on the end face of the telescopic rod 601, the abutment roller 603 is installed on the vertical hinge seat 602 through a hinge rod, and the support spring 604 is fixedly installed between the L-shaped support arm 504 and the vertical hinge seat 602. The abutment unit 6 is arranged in a one-to-one correspondence with the L-shaped support arm 504.
[0040] Furthermore, the adjustment unit 5 also includes a guide rod 506, which is fixedly disposed in another strip box 501 and moves through another protrusion 503.
[0041] Furthermore, a turntable 7 is fixedly installed at one end of the lead screw 502 located outside the strip box 501.
[0042] Furthermore, a stirring assembly 8 is installed on the support 1.
[0043] Furthermore, casters 9 are installed on the bottom surface of the support seat 1.
[0044] Adjusting the protective contact parts of the equipment by adjusting unit 5 makes the operation simple and effortless. Example
[0045] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, a crack repair device for road surface includes a support 1, a storage tank 2 fixedly installed on the top surface of the support 1, a delivery pump 3 connected to the storage tank 2 via a pipe, and an injection head 4 installed at the output end of the delivery pump 3 and located outside the support 1. It also includes an adjustment unit 5 and an abutment unit 6 installed on the support 1.
[0046] The adjustment unit 5 includes a strip box 501, a lead screw 502, a protrusion 503, an L-shaped support arm 504, and a connecting crossbar 505. The top surface of the bearing seat 1 has two symmetrical strip-shaped notches. There are two strip boxes 501, which are symmetrically fixed on the top surface of the bearing seat 1. The lead screw 502 is installed on one of the strip boxes 501 by bearing. There are two protrusions 503, which are located on the two strip boxes 501 respectively. One of the protrusions 503 is threadedly connected to the lead screw 502. The two L-shaped support arms 504 are distributed and fixedly installed on the top of the two protrusions 503 and are located in the two strip notches respectively. The connecting crossbar 505 is fixedly installed at the bottom of the two L-shaped support arms 504 and is located below the bearing seat 1.
[0047] The abutment unit 6 includes a telescopic rod 601, a vertical hinge seat 602, an abutment roller 603, and a support spring 604. The telescopic rod 601 is fixedly installed on the side of the L-shaped support arm 504, the vertical hinge seat 602 is fixedly installed on the end face of the telescopic rod 601, the abutment roller 603 is installed on the vertical hinge seat 602 through a hinge rod, and the support spring 604 is fixedly installed between the L-shaped support arm 504 and the vertical hinge seat 602. The abutment unit 6 is arranged in a one-to-one correspondence with the L-shaped support arm 504.
[0048] Furthermore, each pair of telescopic rods 601 forms a group and is symmetrically distributed on one of the L-shaped support arms 504.
[0049] Furthermore, the telescopic rod 601 and the lead screw 502 are arranged parallel to each other.
[0050] Furthermore, a stirring assembly 8 is installed on the support 1.
[0051] Furthermore, casters 9 are installed on the bottom surface of the support seat 1.
[0052] The abutment unit 6 allows the protective abutment components in the equipment to be freely adjusted and flexibly adapted to curb stones at bends.
[0053] The working principle of this utility model is as follows:
[0054] Holding the strip box 501 externally and rotating it forward and backward to the lead screw 502, one of the protrusions 503, threadedly connected to the lead screw 502, acts on the strip box 501 for translational adjustment. The L-shaped support arm 504 is driven by the protrusion 503 to translate within the strip notch. The connecting crossbar 505, fixedly set at the bottom of the two L-shaped support arms 504 and located below the bearing seat 1, moves synchronously with the two protrusions 503 and the two L-shaped support arms 504. The guide rod 506 guides the other protrusion 503 to slide and translate in coordination with the L-shaped support arm 504. The two abutting Unit 6 is moved and stored along with the L-shaped support arm 504. The telescopic rod 601 and the vertical hinge seat 602 move along with the L-shaped support arm 504 to bring the injection head 4 into contact with the curbstone. The abutment roller 603, which is installed on the vertical hinge seat 602 by the hinge rod, rolls on the curbstone to cooperate with the movement of the equipment. The support spring 604, which is fixed between the L-shaped support arm 504 and the vertical hinge seat 602, deforms and expands. The vertical hinge seat 602 and the abutment roller 603 can freely adjust the distance between themselves and the bearing seat 1 within a certain range. The telescopic rod 601 extends and contracts synchronously with the support spring 604.
[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for repairing cracks in road surfaces, comprising a support base (1), a storage tank (2) fixedly disposed on the top surface of the support base (1), a delivery pump (3) connected to the storage tank (2) via a pipe, and an injection head (4) disposed at the output end of the delivery pump (3) and located outside the support base (1), characterized in that, Also includes: Adjustment unit (5) and contact unit (6) are installed on the support (1); The adjustment unit (5) includes a strip box (501), a lead screw (502), a protrusion (503), an L-shaped support arm (504), and a connecting crossbar (505). The top surface of the bearing seat (1) has two strip-shaped notches symmetrically opened. There are two strip boxes (501) in total, which are symmetrically fixed on the top surface of the bearing seat (1). The lead screw (502) is installed on one of the strip boxes (501) by bearing. There are two protrusions (503) in total, which are located on the two strip boxes (501) respectively. One of the protrusions (503) is threadedly connected to the lead screw (502). The two L-shaped support arms (504) are distributed and fixedly installed on the top of the two protrusions (503) and are located in the two strip-shaped notches respectively. The connecting crossbar (505) is fixedly installed at the bottom of the two L-shaped support arms (504) and located below the bearing seat (1). The abutting unit (6) includes a telescopic rod (601), a vertical hinge seat (602), an abutting roller (603), and a support spring (604). The telescopic rod (601) is fixedly installed on the side of the L-shaped support arm (504). The vertical hinge seat (602) is fixedly installed on the end face of the telescopic rod (601). The abutting roller (603) is installed on the vertical hinge seat (602) through a hinge rod. The support spring (604) is fixedly installed between the L-shaped support arm (504) and the vertical hinge seat (602). The abutting unit (6) and the L-shaped support arm (504) are arranged in a one-to-one correspondence.
2. The crack repair device for road pavement as claimed in claim 1, wherein: The adjustment unit (5) also includes a guide rod (506), which is fixedly installed in another strip box (501) and moves through another protrusion (503).
3. The crack repair device for road pavement as claimed in claim 1, wherein: A turntable (7) is fixedly installed at one end of the lead screw (502) located outside the strip box (501).
4. The crack repair device for road pavement as claimed in claim 1, wherein: Each pair of the telescopic rods (601) forms a group and is symmetrically distributed on one of the L-shaped support arms (504).
5. The crack repair device for road pavement as claimed in claim 1, wherein: The telescopic rod (601) and the lead screw (502) are arranged parallel to each other.
6. The crack filling apparatus for road pavement as claimed in claim 3 wherein: A stirring assembly (8) is installed on the support (1).
7. The crack filling apparatus for road pavement as claimed in claim 1 wherein: Casters (9) are installed on the bottom surface of the bearing seat (1).
Citation Information
Patent Citations
Efficient road repairing device
CN221740871U