Road bridge construction device for bridge crack reinforcement

Abstract

The utility model belongs to the technical field of bridge crack repair, and relates to a road bridge construction device for bridge crack reinforcement, which comprises a base and a grouting device. The base is composed of an annular plate, a connecting cylinder and a square groove body, the top surface of the square groove body is provided with a connecting hole which is internally and externally communicated, and the top end and the bottom end of the connecting cylinder are fixedly connected with the annular plate and the square groove body respectively; and a spring valve capable of being opened and closed is arranged in the square groove body. The construction device can be used for grouting and repairing cracks on the bottom surface of the bridge, and after the spring valve is opened to expose the connecting hole, the grouting device can be arranged on the base, so that the interior of the grouting device is communicated with the connecting hole, grouting resin in the grouting device is poured into the cracks through the base, and the spring valve can be automatically closed to block the connecting hole while the grouting device is dismounted after grouting is completed. The connecting hole can be quickly plugged to prevent slurry leakage of the base, a plug does not need to be installed to block the base, and the crack pouring repairing and filling quality can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge crack repair, and particularly relates to a road and bridge construction device for bridge crack reinforcement. Background Technique

[0002] Cracks are the main diseases of bridge structures. After cracks appear in a bridge, it is necessary to repair and reinforce it in time to avoid further damage to the cracked bridge structure. The automatic low-pressure grouting device is a commonly used construction device for crack grouting repair. When using it for crack repair, there is no need to use supporting equipment such as air compressors and hand-operated pumps, no electricity is required, the operation is simple, the construction is fast, and it can be installed and used in any direction such as horizontal and vertical.

[0003] When using the automatic low-pressure grouting device to grout and repair cracks, the construction steps are as follows:

[0004] Base treatment: Remove the dust and oil stains on the crack surface;

[0005] Determine the injection port: Set an injection port at a certain interval along the extension direction of the crack. The injection port should be set at a position where the crack is wider and the opening is smoother as much as possible, stick on the tape and reserve it;

[0006] Seal the crack: Use a quick-drying sealing adhesive to scrape along the crack surface, leaving the injection port;

[0007] Install the plastic base: Remove the tape on the injection port, and use the sealing adhesive to stick the base on the injection port;

[0008] Install the grouting device: After the sealing adhesive solidifies, suck the prepared grouting resin into the grouting device, and screw the grouting device filled with grouting resin tightly on the base;

[0009] Grouting: Loosen the spring of the grouting device, and under the action of the spring's resilience, pour the grouting resin in the grouting device into the crack through the base, confirm the injection state, and if the resin is insufficient, it can be supplemented and then continue to inject;

[0010] Injection completion: After the injection speed decreases and it is confirmed that no more glue enters, the grouting device can be removed, and the base can be blocked with a plug;

[0011] Remove the base: After the grouting resin cures, knock off the base and the plug, and clean the surface sealing adhesive.

[0012] As can be seen from the above grouting construction steps, after the grouting is completed, the grouting device needs to be removed, and a plug is installed to block the base. However, for bridge cracks, they mostly occur on the bottom surface of the bridge. When grouting and repairing the cracks on the bottom surface of the bridge, an automatic low-pressure grouting device is used to grout from bottom to top. When the grouting device is removed after the grouting is completed, due to the gravity and the fluid form of the grouting resin, it is possible that the grouting resin in the crack flows back into the base and drips from the bottom outlet of the base, which will cause the crack that was originally filled with grouting resin to become unfilled, thus affecting the crack repair effect. Summary of the Invention

[0013] The purpose of the present invention is to provide a road and bridge construction device for strengthening bridge cracks. A spring valve is provided on the base of the construction device. When the grouting device is removed, the spring valve automatically closes to prevent slurry leakage, so as to solve the problems raised in the above background technology.

[0014] The present invention is realized through the following technical solutions:

[0015] A road and bridge construction device for strengthening bridge cracks includes a base and a grouting device. The base is composed of an annular plate, a connecting cylinder and a square groove body. The opening of the square groove body faces downward, and a connecting hole communicating inside and outside is opened on its top surface. The top end and the bottom end of the connecting cylinder are respectively welded or integrally formed with the annular plate and the square groove body, and the inside of the annular plate, the connecting cylinder and the square groove body is communicated. The annular plate of the base can be fixed at the crack on the bottom surface of the bridge by using sealant; a closable spring valve is arranged inside the square groove body. When the spring valve is opened, the grouting device can be inserted into the connecting hole to grout the crack through the base. After the grouting device is removed, the spring valve can automatically close to block the connecting hole.

[0016] Further limitation, a plurality of through grooves distributed in a ring centered on the central axis of the connecting cylinder are opened on the annular plate, and a plurality of annular grooves distributed in an inner and outer layer are opened on the top surface of the annular plate. When the base is adhered to the crack injection port by using sealant, the sealant can fill the through grooves and the annular grooves, thereby increasing the bonding area and bonding strength and improving the stability of the base.

[0017] Further limitation: The grouting device includes a cylinder body. An insertion pipe is provided on the top surface of the cylinder body, and the inside of the insertion pipe communicates with the inside of the cylinder body. The insertion pipe can be inserted into the connection hole; a piston is slidably arranged inside the cylinder body, and a bottom cover is threadedly connected to the bottom of the cylinder body. A push-pull rod is inserted through the bottom cover, and the top end of the push-pull rod is fixedly connected to the piston. The piston can be pushed and pulled to move inside the cylinder body through the push-pull rod. A first spring is sleeved on the push-pull rod inside the cylinder body. The first spring is in a compressed state and its two ends respectively abut against the piston and the bottom cover. When pulling out the push-pull rod outward by hand, the grouting resin can be sucked into the cylinder body through the insertion pipe. The piston moves closer to the bottom cover and further compresses the first spring. After releasing the force on the push-pull rod, under the resilience of the first spring, the first spring pushes the piston away from the bottom cover, thereby pushing the grouting resin in the cylinder body out through the insertion pipe.

[0018] Further limitation: The outer side wall of the top end of the insertion pipe is provided with an external thread, and the connection hole is a stepped hole, and the inner side wall of its lower section is provided with an internal thread. After opening the spring valve, the insertion pipe can be threadedly connected to the lower section of the connection hole, and the grouting device can be fixed on the base in this way.

[0019] Further limitation: Two hooks are fixed to the bottom surface of the annular plate, and the two hooks are symmetric about the central axis of the annular plate. Two elastic ropes are connected to the bottom cover. The end of each elastic rope far away from the bottom cover is fixed with a hanging ring for hook connection with the hook. After threadedly connecting the insertion pipe to the lower section of the connection hole, the elastic ropes can be stretched, and the hanging rings can be hooked on the hooks. The two elastic ropes further connect the grouting device to the base, and the stability of the grouting device can be improved.

[0020] Further limitation: A sleeve is fixed to the bottom surface of the bottom cover, and the push-pull rod is inserted through the sleeve. Through holes penetrating radially are provided on the upper section of the push-pull rod and the sleeve. A pin can be inserted into the through holes between the push-pull rod and the sleeve to lock the push-pull rod. After pulling out the push-pull rod outward to suck the grouting resin into the cylinder body, the first spring is compressed. At this time, the through hole on the push-pull rod is opposite to the through hole on the sleeve, and a pin is inserted, and the push-pull rod can be locked to prevent the first spring from stretching. When the insertion pipe is threadedly connected to the lower section of the connection hole and grouting starts, the pin is pulled out again, so that the first spring can stretch and grout into the crack.

[0021] Further limitation: The spring valve includes two sliders symmetrically arranged in a square groove body. A guide rod is fixed to the outer side wall of each slider. The outer end of the guide rod penetrates through the square groove body and is threadedly connected with a limit nut. A second spring is sleeved on each guide rod. In the initial state, the second spring is in a compressed state. The two sliders abut against each other and block the connection hole. Pushing the two sliders outward can open the connection hole to facilitate the insertion pipe to be inserted into the connection hole.

[0022] Further limitation: a relief groove is formed in the inner side wall of each of the sliders, and when the two sliders are abutted against each other, the two relief grooves enclose a conical hole. The top end of the intubation can be inserted into the conical hole, and the two sliders can be pushed to move outward by the intubation, so that the intubation can be inserted into the connection hole.

[0023] Further limitation: a guide plate is fixed to the outer side wall of each of the sliders, and the outer end of the guide plate penetrates through the square groove body. When the slider moves in the square groove body, the guide plate can improve its stability.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The construction device can be used for grouting and repairing the cracks on the bottom surface of the bridge. The base can be fixed on the injection port of the crack on the bottom surface of the bridge by using the sealant. After the sealant solidifies, the prepared grouting resin can be sucked into the grouting device. After opening the spring valve to expose the connection hole, the grouting device can be installed on the base, so that the inside of the grouting device is communicated with the connection hole. The grouting resin in the grouting device is poured into the crack through the base. After the injection is completed, after the injection speed decreases and it is confirmed that no more glue enters, the grouting device can be removed. At the same time of removing the grouting device, the spring valve can automatically close to block the connection hole, which can quickly block the connection hole to prevent the base from leaking slurry, and there is no need to install a plug to block the base, which can ensure the filling quality of the crack grouting repair. Description of the Drawings

[0026] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0027] Figure 1 It is a schematic structural diagram of the utility model;

[0028] Figure 2 It is a schematic structural diagram of the base in the utility model;

[0029] Figure 3 It is a three-dimensional diagram of the base in the utility model;

[0030] Figure 4 It is a schematic structural diagram of the first use state of the utility model;

[0031] Figure 5 It is a schematic structural diagram of the second use state of the utility model.

[0032] The names of the components in the figure are: 1. Base; 1.1. Ring plate; 1.2. Connecting cylinder; 1.3. Square trough; 2. Spring valve; 2.1. Slider; 2.2. Guide rod; 2.3. Second spring; 2.4. Guide plate; 3. Grouting device; 3.1. Cylinder; 3.2. Insert tube; 3.3. Piston; 3.4. First spring; 3.5. Push-pull rod; 3.6. Bottom cover; 4. Elastic pull rope; 5. Hook; 6. Make way groove; 7. Through groove; 8. Ring groove; 9. Connecting hole; 10. Sleeve; 11. Latch. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0034] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] A road bridge construction device for strengthening bridge cracks, such as Figures 1 to 5 As shown, it is composed of a base 1, a spring valve 2 and a grouting device 3; the base 1 is composed of an annular plate 1.1, a connecting tube 1.2 and a square trough body 1.3, the spring valve 2 is composed of a slider 2.1, a guide rod 2.2, a second spring 2.3 and a guide plate 2.4, and the grouting device 3 is composed of a cylinder 3.1, a plug 3.2, a piston 3.3, a first spring 3.4, a push-pull rod 3.5 and a bottom cover 3.6.

[0036] In the structure of the base 1, Figures 1 to 3 As shown, the opening of the square trough body 1.3 faces downward, and a connecting hole 9 communicating with the inside and outside is opened on its top surface. The top and bottom ends of the connecting tube 1.2 are respectively welded or integrally formed with the annular plate 1.1 and the square trough body 1.3, and the insides of the annular plate 1.1, the connecting tube 1.2 and the square trough body 1.3 are communicated. The annular plate 1.1 of the base 1 can be glued to the cracks on the bottom surface of the bridge by using a sealing adhesive;

[0037] The annular plate 1.1 is provided with a plurality of through grooves 7 distributed in an annular pattern with the central axis of the connecting tube 1.2 as the center, and the top surface of the annular plate 1.1 is provided with a plurality of annular grooves 8 distributed in inner and outer layers. When the base 1 is glued to the crack injection port by using sealing glue, the sealing glue can fill the through grooves 7 and the annular grooves 8, thereby increasing the bonding area and bonding strength, and improving the stability of the base 1.

[0038] In the structure of the above-mentioned spring valve 2, as Figures 1 to 3 shown, there are two sliders 2.1, and the two sliders 2.1 are symmetrically arranged in the square groove 1.3. A guide rod 2.2 is fixed on the outer side wall of each slider 2.1. The outer end of the guide rod 2.2 penetrates through the square groove 1.3 and is threadedly connected with a limit nut. A second spring 2.3 is sleeved on each guide rod 2.2. In the initial state, the second spring 2.3 is compressed. The two sliders 2.1 are abutted against each other and block the connecting hole 9. Pushing the two sliders 2.1 outward can open the connecting hole 9; A guide plate 2.4 is fixed on the outer side wall of each slider 2.1, and the outer end of the guide plate 2.4 penetrates through the square groove 1.3. When the slider 2.1 moves in the square groove 1.3, the guide plate 2.4 can improve its stability;

[0039] The structure of the above-mentioned spring valve 2 makes it openable and closable. When the spring valve 2 is opened, the grouting device 3 can be inserted into the connecting hole 9 to grout the crack through the base 1. After the grouting device 3 is removed, the spring valve 2 can automatically close to block the connecting hole 9.

[0040] In the structure of the above-mentioned grouting device 3, as Figure 1 shown, the inserting pipe 3.2 is arranged on the top surface of the cylinder body 3.1, and the inside of the inserting pipe 3.2 is communicated with the inside of the cylinder body 3.1. The inserting pipe 3.2 can be inserted into the connecting hole 9; The piston 3.3 is slidably arranged inside the cylinder body 3.1. The bottom cover 3.6 is threadedly connected to the bottom of the cylinder body 3.1. The push-pull rod 3.5 is installed through the bottom cover 3.6. The top end of the push-pull rod 3.5 is fixedly connected to the piston 3.3. The piston 3.3 can be pushed and pulled to move inside the cylinder body 3.1 through the push-pull rod 3.5. A first spring 3.4 is sleeved on the push-pull rod 3.5 inside the cylinder body 3.1. The first spring 3.4 is in a compressed state and its two ends are respectively abutted against the piston 3.3 and the bottom cover 3.6. When pulling the push-pull rod 3.5 outward by hand, the grouting resin can be sucked into the cylinder body 3.1 through the inserting pipe 3.2. The piston 3.3 moves closer to the bottom cover 3.6 and further compresses the first spring 3.4. After releasing the force on the push-pull rod 3.5, under the resilience of the first spring 3.4, the first spring 3.4 pushes the piston 3.3 away from the bottom cover 3.6, so as to push the grouting resin inside the cylinder body 3.1 out through the inserting pipe 3.2.

[0041] As Figures 1 to 3 shown, a relief groove 6 is formed on the inner side wall of each slider 2.1. When the two sliders 2.1 are abutted against each other, the two relief grooves 6 enclose a conical hole. The top end of the inserting pipe 3.2 can be extended into the conical hole, and the inserting pipe 3.2 is used to push the two sliders 2.1 outward, so that the inserting pipe 3.2 can be installed into the connecting hole 9.

[0042] The outer side wall of the top end of the insertion tube 3.2 is provided with an external thread, and the connection hole 9 is a stepped hole, and the inner side wall of its lower section is provided with an internal thread. After the spring valve 2 is opened, the insertion tube 3.2 can be threadedly connected to the lower section of the connection hole 9, and the grouting device 3 can be fixed on the base 1 in this way;

[0043] As Figures 1 to 3 shown, two hooks 5 are fixed on the bottom surface of the annular plate 1.1, and the two hooks 5 are symmetrical along the central axis of the annular plate 1.1. Two elastic pull ropes 4 are connected to the bottom cover 3.6. One end of each elastic pull rope 4 away from the bottom cover 3.6 is fixed with a hanging ring for hook connection with the hook 5. After the insertion tube 3.2 is threadedly connected to the lower section of the connection hole 9, the elastic pull ropes 4 can be stretched, and the hanging rings can be hooked on the hooks 5. The two elastic pull ropes 4 further connect the grouting device 3 and the base 1, and the stability of the grouting device 3 can be improved.

[0044] As Figure 1 shown, a sleeve 10 is fixed on the bottom surface of the bottom cover 3.6, the push rod 3.5 is inserted into the sleeve 10, and through holes penetrating radially are provided on the upper section of the push rod 3.5 and the sleeve 10. A pin 11 can be inserted into the through holes between the push rod 3.5 and the sleeve 10 to lock the push rod 3.5. After the push rod 3.5 is pulled outwards to suck the grouting resin into the cylinder body 3.1, the first spring 3.4 is compressed. At this time, the through holes on the push rod 3.5 and the sleeve 10 are opposite, and the pin 11 is inserted to lock the push rod 3.5 to prevent the first spring 3.4 from stretching. When the insertion tube 3.2 is threadedly connected to the lower section of the connection hole 9 and grouting starts, the pin 11 is pulled out again, so that the first spring 3.4 can stretch and grout into the crack.

[0045] Except for the above-mentioned first spring 3.4 and second spring 2.3, the other components of the base 1, the spring valve 2 and the grouting device 3 are all made of plastic, with light weight and not easy to fall off when fixed with sealant.

[0046] Based on the existing construction steps for crack repair, when the construction device grouts to repair cracks, its working principle is as follows:

[0047] Install the base 1 at the crack on the bottom surface of the bridge: Remove the tape on the injection port, and use sealant to stick the base 1 to the injection port;

[0048] Install the grouting device 3: As Figure 4As shown, after the sealant has solidified, suck the prepared grouting resin into the grouting device 3, install the pin 11 to lock the push-pull rod 3.5, hold the cylinder body 3.1 and insert the insertion tube 3.2 into the tapered hole between the two sliders 2.1, and continue to push up the insertion tube 3.2 to push the two sliders 2.1 outwards by the insertion tube 3.2 to open the connection hole 9, and rotate the cylinder body 3.1 to thread-connect the insertion tube 3.2 to the lower section of the connection hole 9; stretch the two elastic ropes 4 in sequence so that the hanging rings are hooked on the hooks 5 to further fix the grouting device 3;

[0049] Grouting: As Figure 5 shown, pull out the pin 11 to release the restriction on the push-pull rod 3.5 and the first spring 3.4, and under the resilience of the first spring 3.4, pour the grouting resin in the cylinder body 3.1 into the crack through the base 1, confirm the injection state, and if the resin is insufficient, supplement it and continue to inject;

[0050] Injection completed: After waiting for the injection speed to decrease and confirming that there is no more glue injection, the grouting device 3 can be removed. When the insertion tube 3.2 exits from the square groove body 1.3, under the resilience of the second spring 2.3, the two sliders 2.1 move closer to each other until the two sliders 2.1 abut against each other to block the connection hole 9 after the insertion tube 3.2 is completely separated, and there is no need to install a plug to block the base. When the grouting device 3 is removed, the spring valve 2 can automatically close to block the connection hole 9, can quickly block the connection hole 9 to prevent the base 1 from leaking slurry, and can ensure the filling quality of the crack repair grouting.

Claims

1. A road bridge construction device for strengthening bridge cracks, comprising a base (1) and a grouting device (3), characterized in that: The base (1) is composed of an annular plate (1.1), a connecting tube (1.2) and a square trough body (1.3); the opening of the square trough body (1.3) faces downward, and a connecting hole (9) communicating with the inside and outside is provided on its top surface; the top and bottom ends of the connecting tube (1.2) are fixedly connected to the annular plate (1.1) and the square trough body (1.3) respectively, and the insides of the annular plate (1.1), the connecting tube (1.2) and the square trough body (1.3) are communicated with each other; an openable and closable spring valve (2) is provided inside the square trough body (1.3); when the spring valve (2) is opened, the grouting device (3) can be inserted into the connecting hole (9) to grout the crack through the base (1); after the grouting device (3) is removed, the spring valve (2) can be automatically closed to block the connecting hole (9).

2. The road bridge construction device for bridge crack reinforcement according to claim 1 is characterized in that: The annular plate (1.1) is provided with a plurality of through grooves (7) distributed in an annular pattern with the central axis of the connecting cylinder (1.2) as the center, and the top surface of the annular plate (1.1) is provided with a plurality of annular grooves (8) distributed in inner and outer layers.

3. The road bridge construction device for bridge crack reinforcement according to claim 1 is characterized in that: The grouting device (3) comprises a cylinder (3.1), the top surface of which is provided with a plug (3.2), and the interior of the plug (3.2) is communicated with the interior of the cylinder (3.1); a piston (3.3) is slidably provided inside the cylinder (3.1), the bottom of the cylinder (3.1) is threadedly connected with a bottom cover (3.6), a push-pull rod (3.5) is installed on the bottom cover (3.6), the top end of the push-pull rod (3.5) is fixedly connected with the piston (3.3), and the piston (3.3) can be pushed and pulled to move in the cylinder (3.1) by the push-pull rod (3.5), and a first spring (3.4) is sleeved on the push-pull rod (3.5) in the cylinder (3.1), the first spring (3.4) is in a compressed state, and its two ends are respectively against the piston (3.3) and the bottom cover (3.6).

4. The road bridge construction device for bridge crack reinforcement according to claim 3 is characterized in that: The top outer wall of the insert tube (3.2) is provided with an external thread, the connecting hole (9) is a stepped hole, and the lower inner wall thereof is provided with an internal thread. After the spring valve (2) is opened, the insert tube (3.2) can be connected with the lower thread of the connecting hole (9).

5. The road bridge construction device for bridge crack reinforcement according to claim 4 is characterized in that: Two hooks (5) are fixed on the bottom surface of the annular plate (1.1), and the two hooks (5) are symmetrical along the central axis of the annular plate (1.1). Two elastic drawstrings (4) are connected to the bottom cover (3.6), and a hanging ring for hooking and connecting with the hooks (5) is fixed on one end of each elastic drawstring (4) away from the bottom cover (3.6).

6. The road bridge construction device for bridge crack reinforcement according to claim 3 is characterized in that: A sleeve (10) is fixed to the bottom surface of the bottom cover (3.6), and the push-pull rod (3.5) is inserted into the sleeve (10). The upper section of the push-pull rod (3.5) and the sleeve (10) are provided with a plug hole that penetrates in the radial direction, and a latch (11) can be inserted into the plug hole between the push-pull rod (3.5) and the sleeve (10) to lock the push-pull rod (3.5).

7. The road bridge construction device for bridge crack reinforcement according to any one of claims 3 to 6, characterized in that: The spring valve (2) comprises two sliders (2.1) symmetrically arranged in a square groove body (1.3); a guide rod (2.2) is fixed to the outer wall of each slider (2.1); the outer end of the guide rod (2.2) passes through the square groove body (1.3) and is threadedly connected to a limit nut; a second spring (2.3) is mounted on each guide rod (2.2); in an initial state, the second spring (2.3) is in compression, and the two sliders (2.1) abut against each other and block the connection hole (9).

8. The road bridge construction device for bridge crack reinforcement according to claim 7 is characterized in that: The inner side wall of each slider (2.1) is provided with a clearance groove (6), and when two sliders (2.1) abut against each other, the two clearance grooves (6) surround and form a conical hole.

9. The road bridge construction device for bridge crack reinforcement according to claim 7, characterized in that: A guide plate (2.4) is fixed to the outer side wall of each sliding block (2.1), and the outer end of the guide plate (2.4) passes through the square slot body (1.3).

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