Post-poured concrete cleaning device based on high-pressure water jet

Abstract

The utility model discloses a post-poured concrete cleaning device based on high-pressure water jet. The post-poured concrete cleaning device comprises a water storage tank, a high-pressure pump and a high-pressure hose, the input end of the high-pressure pump is connected with the water storage tank through a pipeline, and the output end of the high-pressure pump is connected with one end of the high-pressure hose; the walking mechanism is mounted on the lower surface of the supporting plate; the water storage tank and the high-pressure pump are fixedly mounted on the upper surface of the supporting plate; the walking mechanism comprises two pairs of walking wheels matched with the rails and an adjusting mechanism for adjusting the walking wheels to be close to or away from each other. Limiting parts are arranged on the faces, close to each other, of each pair of walking wheels. By arranging the walking wheels, it can be ensured that the device stably walks and is positioned on the rail, an operator does not need to carry the device, and meanwhile the walking wheels can be adjusted through the adjusting mechanism, so that the cleaning device is in a stable state on the rail. The problem that the operation effect is affected due to the fact that equipment is placed unstably is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete cleaning devices, in particular to a post-cast concrete cleaning device based on high-pressure water jets. Background Art

[0002] The railway bridge deck waterproofing system consists of a waterproof layer and a protective layer, of which the waterproof layer is the key part, and its purpose is to protect the bridge structure from water erosion, enhance the crack resistance of the bridge deck, improve the durability of the structure and extend its service life. However, some high-speed railway bridges have experienced serious problems such as bulging, cracking, and breakage and falling off soon after they were put into operation. Most of the problems can be attributed to improper handling of key control points during the construction of post-cast concrete.

[0003] When high-speed railway bridges have serious problems such as bulging, cracking, and damage and falling off, it is necessary to repair the bulging, cracking, and damaged locations. During the construction process, the treatment of the concrete bridge deck and the waterproof bonding layer are two key control points. First, the defective parts of the waterproof layer need to be thoroughly cleaned. For serious damage to ballastless track structures such as post-cast concrete and base plate concrete, traditional demolition methods such as pneumatic chiseling and mechanical milling are often used for repair, but the concealment of these structures limits the application of these methods.

[0004] To solve this problem, high-pressure water jet technology has been used to break concrete structures. This technology can effectively break the powdered concrete structure of the post-cast strip. However, there are many challenges when using high-pressure water jet equipment, including that the handling and transfer of the equipment mostly rely on manual labor, which not only consumes a lot of physical energy, but also during the construction process, due to the unevenness of the railway road surface or the interference of the rails, the equipment may not be placed stably, thus affecting the operation effect. Therefore, optimizing equipment design and construction processes to adapt to the specific needs of the railway environment is the key to improving the construction quality of railway bridge waterproofing systems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a post-cast concrete cleaning device based on high-pressure water jets, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a post-cast concrete cleaning device based on high-pressure water jets, comprising a water tank, a high-pressure pump and a high-pressure hose; the input end of the high-pressure pump is connected to the water tank through a pipeline, and the output end of the high-pressure pump is connected to one end of the high-pressure hose; it also includes a support plate and a walking mechanism installed on the lower surface of the support plate; the water tank and the high-pressure pump are both fixedly installed on the upper surface of the support plate; the walking mechanism includes two pairs of running wheels matching the rails and an adjusting mechanism for adjusting the running wheels to move closer or further away; a limiting portion is provided on a side of each pair of the running wheels that are close to each other, and the adjusting mechanism adjusts the running wheels to move away from each other and makes the limiting portion in close contact with the inner side of the rail.

[0007] Preferably, the walking mechanism further comprises a mounting cavity for accommodating the adjusting mechanism;

[0008] The adjusting mechanism comprises an adjusting screw, an adjusting piece, four connecting rods and four springs; the four connecting rods are slidably connected to the inner wall of the mounting cavity, and one end of the four connecting rods extending out of the mounting cavity is rotatably connected to the walking wheel, the mounting cavity comprises two driving cavities, the adjusting piece is provided with two conical protrusions, the connecting rod is provided with a first mounting seat, and a second mounting seat is provided inside the mounting cavity, the spring is installed between the first mounting seat and the second mounting seat, the spring provides the connecting rod with elastic force to extend out of the mounting cavity, and one end of the connecting rod away from the walking wheel extends into the driving cavity; the adjusting screw is rotatably connected to the mounting cavity and extends out of the mounting cavity, the adjusting piece is provided with a threaded groove, the adjusting screw extends into the threaded groove and is threadedly connected to the threaded groove.

[0009] Preferably, a handle is provided at one end of the adjusting screw away from the adjusting member, and the handle is provided with anti-slip corrugations.

[0010] Preferably, a first slide groove is provided on the connecting rod, a first strip protrusion extending into the first slide groove is provided on the inner wall of the installation cavity, a second strip protrusion is provided on the adjusting member, and a second slide groove matching the second strip protrusion is provided on the inner wall of the installation cavity.

[0011] Preferably, a reinforcing rib is provided on a side of the traveling wheel close to the connecting rod.

[0012] Preferably, the shape of the end of the connecting rod extending into the driving cavity is hemispherical.

[0013] Preferably, a notch is provided on the support plate.

[0014] Preferably, a hanging ring is provided on the support plate.

[0015] Preferably, a post-cast concrete cleaning device based on high-pressure water jet also includes a water spray assembly, which includes a connecting pipe, a first handle, a second handle, a sleeve and a locking nut; one end of the connecting pipe is connected to the high-pressure hose, and the connecting pipe is provided with a socket and an external thread, the first handle is fixedly connected to the connecting pipe, the second handle is fixedly connected to the sleeve, the sleeve is rotatably connected to the connecting pipe, the locking nut is threadedly connected to the external thread, and the sleeve is located between the socket and the locking nut.

[0016] Beneficial Effects

[0017] The utility model provides a post-cast concrete cleaning device based on high-pressure water jet. By using a high-pressure pump and a high-pressure hose, the utility model can quickly and effectively clean the post-cast concrete, reducing the labor intensity and time required by traditional physical removal methods (such as pneumatic picks or mechanical milling and digging). In addition, the high-pressure water jet can accurately cut and reduce potential damage to surrounding structures. The setting of the running wheel can ensure that the device can walk stably on the rails. There is no need for the operator to carry the equipment. The operator only needs to push or pull the cleaning device to walk on the rails. Since the surface of the rails is smooth, the pushing or pulling process is also effortless. In addition, when moving to the construction position (the area where the post-cast concrete is bulging, cracked or damaged), the running wheel can be adjusted by the adjustment mechanism to make the cleaning device stable on the rails. It effectively solves the problem that the equipment is not placed stably, thereby affecting the operation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the post-cast concrete cleaning device based on high-pressure water jets described in the utility model from a first perspective.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the post-cast concrete cleaning device based on high-pressure water jets described in the utility model.

[0020] Figure 3 This is an exploded view of the post-cast concrete cleaning device based on high-pressure water jet described in the utility model.

[0021] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the walking mechanism of the post-cast concrete cleaning device based on high-pressure water jets described in the utility model.

[0022] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the installation cavity of the post-cast concrete cleaning device based on high-pressure water jet according to the utility model.

[0023] Figure 6It is a three-dimensional structural schematic diagram of the water spraying assembly of the post-cast concrete cleaning device based on high-pressure water jet according to the utility model.

[0024] In the figure: 1-water tank, 2-high-pressure pump, 21-pipeline, 3-high-pressure hose, 4-support plate, 41-notch, 42-hanging ring, 5-walking mechanism, 51-walking wheel, 511-limiting part, 512-reinforcement rib, 52-adjusting mechanism, 521-adjusting screw, 5211-handle, 522-adjusting member, 5221-conical protrusion, 5222-thread groove, 5223-second strip protrusion, 523-connecting rod, 5231-first mounting seat, 5232-first slide groove, 524-spring, 53-mounting cavity, 531-driving cavity, 532-second mounting seat, 533-first strip protrusion, 6-water spraying assembly, 61-connecting pipe, 611-card holder, 612-external thread, 62-first handle, 63-second handle, 64-sleeve, 65-locking nut. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figures 1 to 6 The utility model provides a post-cast concrete cleaning device based on high-pressure water jet, which mainly includes a water tank 1, a high-pressure pump 2, a high-pressure hose 3, a support plate 4 and a walking mechanism 5 installed on the lower surface of the support plate 4. Water is stored in the water tank 1 for supplying to the high-pressure pump 2. The input end of the high-pressure pump 2 is connected to the water tank 1 through a pipeline 21, and the output end of the high-pressure pump 2 is connected to one end of the high-pressure hose 3; the water tank 1 and the high-pressure pump 2 are both fixedly installed on the upper surface of the support plate 4. The walking mechanism 5 includes two pairs of walking wheels 51 matched with the rails and an adjusting mechanism 52, and the adjusting mechanism 52 is used to adjust the walking wheels 51 to be close to or away from the rails.

[0028] The tread of the running wheel 51 is designed to be conical, so that when it deviates slightly from the center of the track during travel, one side will contact the rail more than the other side, thereby generating a natural guiding force toward the center of the track. This force helps the cleaning device to automatically return to the center of the track to ensure that it maintains the correct position on the rail. A limiting portion 511 is provided on the side of each pair of running wheels 51 that are close to each other, and the adjustment mechanism 52 can adjust the running wheels 51 to move away from each other and make the limiting portion 511 in close contact with the inner side of the rail. The setting of the running wheel 51 allows the cleaning device to travel along the rail, which is convenient for transportation, and the conical design of the limiting portion 511 and the tread of the running wheel 51 can prevent the running wheel 51 from derailing.

[0029] During use, the operator places the cleaning device on the rail and ensures that the running wheel 51 is in contact with the rail. The operator can choose to push or pull the cleaning device to walk along the rail. When walking to the bulging, cracking or damaged area that needs to be treated, the operator uses the adjustment mechanism 52 to move the running wheels 51 on both sides away from each other until the limiter 511 is in close contact with the inner side of the rail. The running wheel 51 is fixed by the friction between the limiter 511 and the inner side of the rail to ensure the stability of the cleaning device. Subsequently, the operator starts the high-pressure pump 2, which transports the water in the water tank 1 through the high-pressure hose 3. The operator holds the high-pressure hose 3 and aligns its water outlet with the concrete position to be cleaned. After the water is sprayed out of the high-pressure hose 3, a high-pressure water jet is formed. After the high-pressure water jet is sprayed out, the post-cast concrete is effectively cut and crushed, thereby achieving the cleaning of the post-cast concrete.

[0030] By using a high-pressure pump 2 and a high-pressure hose 3, the device can quickly and effectively clean the post-cast concrete, reducing the labor intensity and time required by traditional physical removal methods (such as pneumatic picks or mechanical milling). In addition, high-pressure water jets can cut accurately, reducing potential damage to surrounding structures. The setting of the running wheel 51 can ensure that the device can walk stably on the rails. There is no need for the operator to carry the equipment. The operator only needs to push or pull the cleaning device to walk on the rails. Since the surface of the rails is smooth, the pushing or pulling process is also effortless. In addition, when moving to the construction position (the area where the post-cast concrete is bulging, cracked or damaged), the running wheel 51 can be adjusted by the adjustment mechanism 52 to keep the cleaning device in a stable state on the rails. This effectively solves the problem of unstable equipment placement, which affects the operating effect.

[0031] The high-pressure pump 2 is an existing high-pressure plunger pump, which may be, but is not limited to, a Jetstream 4200 series or a CatPumps 3500 series.

[0032] Specifically, the walking mechanism 5 further includes a mounting cavity 53 for accommodating the adjustment mechanism 52. The specific structure is as follows: Figure 5As shown. The adjustment mechanism 52 mainly includes an adjusting screw 521, an adjusting member 522, four connecting rods 523 and four springs 524. The four connecting rods 523 are slidably connected to the inner wall of the installation cavity 53, and one end of each connecting rod 523 extends out of the installation cavity 53 and is rotatably connected to the running wheel 51. Two driving cavities 531 are designed inside the installation cavity 53, and two conical protrusions 5221 are provided on the adjusting member 522. The connecting rod 523 is equipped with a first mounting seat 5231, and a second mounting seat 532 is provided inside the installation cavity 53. The spring 524 is installed between the first mounting seat 5231 and the second mounting seat 532 to provide elastic force for the connecting rod 523 to extend outward. One end of the connecting rod 523, away from the running wheel 51, extends into the driving cavity 531. The adjusting screw 521 is rotatably connected to the installation cavity 53 and extends out of the installation cavity 53. The adjusting member 522 is provided with a thread groove 5222 , and the adjusting screw rod 521 extends into the thread groove 5222 and is threadedly connected thereto, thereby realizing precise adjustment of the spacing between the traveling wheels 51 .

[0033] When the cleaning device is working normally and in a walkable state, the four connecting rods 523 extend into their corresponding driving chambers 531 respectively, and the operator can move the cleaning device freely on the rail by pulling or pushing it. Once the cleaning device is moved to the designated construction position, the operator needs to rotate the adjusting screw 521. The rotation of the adjusting screw 521 drives the adjusting member 522 to move along a straight path in the installation cavity 53, wherein the conical protrusion 5221 of the adjusting member 522 begins to contact the end of the connecting rod 523 away from the running wheel 51, and pushes the connecting rod 523 to extend outside the installation cavity 53. This action causes the limiting portion 511 of the running wheel 51 to come into contact with the inner side of the rail.

[0034] By continuously tightening the adjusting screw 521, the interaction between the adjusting member 522 and the connecting rod 523 is further strengthened, so that the limiting portion 511 is in closer contact with the inner side of the rail. This contact fixes the running wheel 51 through the friction between the limiting portion 511 and the inner side of the rail, ensuring the stability of the cleaning device during construction. After the running wheel 51 is fixed, the operator can start the high-pressure pump 2, and the high-pressure water jet delivered by the high-pressure hose 3 directly cleans the target concrete area, thereby completing the effective removal and treatment of the post-cast concrete.

[0035] Specifically, the connecting rod 523 is provided with a first slide groove 5232, and the inner wall of the installation cavity 53 is provided with a first strip protrusion 533 extending into the first slide groove 5232. The setting of the first slide groove 5232 and the first strip protrusion 533 guides the setting of the connecting rod 523, prevents the connecting rod 523 from rotating inside the installation cavity 53, and ensures the stable linear motion of the connecting rod 523. When the conical protrusion 5221 of the adjusting member 522 drives the connecting rod 523 to move, the first strip protrusion 533 slides in the first slide groove 5232.

[0036] A second strip protrusion 5223 is provided on the adjusting member 522, and a second slide groove (not shown in the figure) matching the second strip protrusion 5223 is provided on the inner wall of the mounting cavity 53. The setting of the second strip protrusion 5223 and the second slide groove ensures that the adjusting member 522 rotates along with the rotation of the adjusting screw 521, thereby ensuring the linear rotation of the adjusting member 522. During the movement of the adjusting member 522, the second strip protrusion 5223 slides in the second slide groove.

[0037] Embodiment 2

[0038] Compared with the first embodiment, the present embodiment is different in that a handle 5211 is provided at one end of the adjusting screw 521 away from the adjusting member 522, and the handle 5211 is provided with anti-skid corrugations. The setting of the anti-skid corrugations can make it easier for the operator to turn the adjusting screw 521. The anti-skid corrugation design on the handle 5211 provides additional grip and stability, so that the operator can control the adjusting screw 521 more easily and accurately when making adjustments, especially in situations where fast or fine adjustments are required. This design reduces the risk of slipping during operation and improves the safety and efficiency of the entire adjustment process, especially in bad weather or slippery conditions.

[0039] Specifically, a reinforcing rib 512 is provided on one side of the running wheel 51 close to the connecting rod 523. The reinforcing rib 512 is provided to improve the structural stability of the limiting portion 511 of the running wheel 51 and reduce the deformation of the limiting portion 511 after long-term use.

[0040] Specifically, the end of the connecting rod 523 extending into the driving cavity 531 is in a hemispherical shape. The hemispherical design is used to adapt to the conical protrusion 5221, so as to avoid the design of the angular mechanism from aggravating the wear between the connecting rod 523 and the conical protrusion 5221.

[0041] Specifically, a notch 41 is provided on the support plate 4. During the actual operation, the operator's hand can pass through the notch 41 to rotate the handle 5211, thereby improving practicality. Figures 1 to 3 As shown, other notches are provided on the support plate 4 to ensure the bearing function of the support plate 4 while achieving a lightweight design.

[0042] Specifically, a hanging ring 42 is provided on the support plate 4, and the hanging ring 42 is used to bind a pull rope. The pull rope can be bound to both ends of the support plate 4, so that the device can be pulled in two directions to move on the rail. The two directions refer to a first direction and a second direction along the rail, and the first direction and the second direction are opposite.

[0043] Embodiment 3

[0044] like Figures 1 to 6 For details, please refer to Figure 6 The post-cast concrete cleaning device based on high-pressure water jet shown in this embodiment also includes a water spray assembly 6, which includes a connecting pipe 61, a first handle 62, a second handle 63, a sleeve 64 and a locking nut 65; one end of the connecting pipe 61 is connected to the high-pressure hose 3, and a clamping seat 611 and an external thread 612 are provided on the connecting pipe 61, the first handle 62 is fixedly connected to the connecting pipe 61, the second handle 63 is fixedly connected to the sleeve 64, the sleeve 64 is rotatably connected to the connecting pipe 61, the locking nut 65 is threadedly connected to the external thread 12, and the sleeve 64 is located between the clamping seat 611 and the locking nut 65.

[0045] In order to ensure the comfort of the operator during operation, the water spray assembly 6 is provided with a first grip 62 and a second grip 63. The operator holds the first grip 62 and the second grip 63 and holds the water spray assembly 6 with both hands to improve the stability and convenience of holding. In actual use, loosen the locking nut 65, and then turn the second grip 63 to rotate. The rotation of the second grip 63 directly drives the sleeve 64 to rotate along the axis of the connecting pipe 61. When the second grip 63 rotates to a comfortable angle, tighten the locking nut 65. The locking nut 65 clamps the sleeve 64 between the clamping seat 611 and the locking nut 65 to fix the sleeve 64, thereby fixing the second grip 63. It also realizes the angle adjustment of the second grip 63 relative to the first grip 62, so as to adjust it to a comfortable grip for the operator.

[0046] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A post-cast concrete cleaning device based on high-pressure water jet, comprising a water tank (1), a high-pressure pump (2) and a high-pressure hose (3); the input end of the high-pressure pump (2) is connected to the water tank (1) through a pipeline (21), and the output end of the high-pressure pump (2) is connected to one end of the high-pressure hose (3); characterized in that: It also comprises a support plate (4) and a running mechanism (5) mounted on the lower surface of the support plate (4); the water storage tank (1) and the high-pressure pump (2) are both fixedly mounted on the upper surface of the support plate (4); the running mechanism (5) comprises two pairs of running wheels (51) matching the rails and an adjusting mechanism (52) for adjusting the running wheels (51) to move closer or further away; a limiting portion (511) is provided on a side of each pair of the running wheels (51) that is closer to each other, and the adjusting mechanism (52) adjusts the running wheels (51) to move away from each other and allows the limiting portion (511) to be in close contact with the inner side of the rail.

2. The post-cast concrete cleaning device based on high-pressure water jet according to claim 1 is characterized in that: The walking mechanism (5) further comprises a mounting cavity (53) for accommodating the adjusting mechanism (52); The adjustment mechanism (52) comprises an adjustment screw (521), an adjustment member (522), four connecting rods (523) and four springs (524); the four connecting rods (523) are slidably connected to the inner wall of the installation cavity (53), and one end of the four connecting rods (523) extending out of the installation cavity (53) is rotationally connected to the walking wheel (51); the installation cavity (53) comprises two driving cavities (531); the adjustment member (522) is provided with two conical protrusions (5221); the connecting rod (523) is provided with a first mounting seat (5231); and the interior of the installation cavity (53) is provided with a second mounting seat (5321). ), the spring (524) is installed between the first mounting seat (5231) and the second mounting seat (532), the spring (524) provides elastic force for the connecting rod (523) to extend out of the mounting cavity (53), and one end of the connecting rod (523) away from the walking wheel (51) extends into the driving cavity (531); the adjusting screw (521) is rotatably connected to the mounting cavity (53) and extends out of the mounting cavity (53), the adjusting member (522) is provided with a thread groove (5222), the adjusting screw (521) extends into the thread groove (5222) and is threadedly connected to the thread groove (5222).

3. The post-cast concrete cleaning device based on high-pressure water jet according to claim 2 is characterized in that: A handle (5211) is provided at one end of the adjusting screw rod (521) away from the adjusting member (522), and the handle (5211) is provided with anti-slip corrugations.

4. The post-cast concrete cleaning device based on high-pressure water jet according to claim 2 is characterized in that: The connecting rod (523) is provided with a first sliding groove (5232), the inner wall of the installation cavity (53) is provided with a first strip-shaped protrusion (533) extending into the first sliding groove (5232), the adjusting member (522) is provided with a second strip-shaped protrusion (5223), and the inner wall of the installation cavity (53) is provided with a second sliding groove matching the second strip-shaped protrusion (5223).

5. The post-cast concrete cleaning device based on high-pressure water jet according to claim 2 is characterized in that: A reinforcing rib (512) is provided on one side of the traveling wheel (51) close to the connecting rod (523).

6. The post-cast concrete cleaning device based on high-pressure water jet according to claim 2 is characterized in that: The shape of one end of the connecting rod (523) extending into the driving cavity (531) is hemispherical.

7. The post-cast concrete cleaning device based on high-pressure water jet according to claim 1 is characterized in that: The support plate (4) is provided with a notch (41).

8. The post-cast concrete cleaning device based on high-pressure water jet according to claim 1 is characterized in that: The support plate (4) is provided with a hanging ring (42).

9. The post-cast concrete cleaning device based on high-pressure water jet according to claim 1 is characterized in that: The water spray assembly (6) further comprises a water spray assembly (6), the water spray assembly (6) comprising a connecting pipe (61), a first handle (62), a second handle (63), a sleeve (64) and a locking nut (65); one end of the connecting pipe (61) is connected to the high-pressure hose (3); a clamping seat (611) and an external thread (612) are provided on the connecting pipe (61); the first handle (62) is fixedly connected to the connecting pipe (61); the second handle (63) is fixedly connected to the sleeve (64); the sleeve (64) is rotatably connected to the connecting pipe (61); the locking nut (65) is threadedly connected to the external thread (612); and the sleeve (64) is located between the clamping seat (611) and the locking nut (65).

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