Mortar injection device for blocking screw hole of retaining wall

Abstract

According to the mortar injection device for blocking the retaining wall screw hole, in the device, mortar used for blocking the retaining wall screw hole is contained in a mortar bin, and the mortar bin is provided with a gradually-shrinking structure from top to bottom; the discharging opening is formed in the bottom of the gradually-shrinking structure, and the section, in the vertical direction, of the discharging opening is of an upwards-concave arc-shaped structure. The injection bin is fixedly connected with the mortar bin and comprises a first end facing a retaining wall screw hole and a second end opposite to the first end, and the arc-shaped structure is fixed to the top wall of the hollow injection bin; the upper opening is formed in the preset position between the first end and the second end of the top wall of the injection bin and is aligned with the discharging opening. The push-and-pull cylinder is connected into the injection bin in a sliding mode so as to convey mortar to the retaining wall screw hole from the first end, and the upper opening is switched between closing and opening through the sliding push-and-pull cylinder; the push rod grip is arranged on the side, away from the second end, of the push-pull cylinder. The device is continuous and convenient to fill.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining wall blocking, in particular to a mortar injection device for blocking screw holes in retaining walls. Background Art

[0002] During the construction of the retaining wall, in order to ensure the reuse of the tension screws, PVC sleeves are used to penetrate the retaining wall to protect the screws and prevent concrete adhesion. After the concrete pouring is completed and the wall is demolded, the PVC pipe at the hole is removed and the bolt holes are promptly sealed with cement mortar of the same grade. The current sealing method used on the construction site is to use a spatula to fill part of the mortar and then use a steel bar to ram and compact it. This is inefficient, takes a long time to seal, and the sealing effect is difficult to guarantee. Optimizing the sealing tools and changing the sealing method can effectively improve the sealing efficiency.

[0003] The above information disclosed in the background technology section is only used to enhance the understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a mortar injection device for sealing the screw hole of a retaining wall. The cement mortar is pressed into the screw hole through a single-rod push-pull cylinder. After the cement mortar is added to the grouting bin, the port of the syringe steel pipe is aligned with the orifice of the screw hole, and the push-pull cylinder is pulled open. The cement mortar in the mortar bin is filled into the lower injection bin by gravity. After the filling is completed, the push-pull cylinder is pressed down to close the grouting bin discharge port and push the mortar in the injection bin into the screw hole. After use, the grouting bin discharge port can be reset by pushing the push-pull cylinder to be in a closed state.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses a mortar injection device for sealing screw holes in a retaining wall, comprising:

[0007] A mortar bin containing mortar for plugging screw holes in the retaining wall, wherein the mortar bin has a tapered structure from top to bottom;

[0008] A feed opening, which is arranged at the bottom of the tapered structure, and the cross section of the feed opening in the vertical direction is an arc-shaped structure that is concave upwards;

[0009] An injection bin, which is fixedly connected to the mortar bin, the injection bin comprises a first end facing the screw hole of the retaining wall and a second end opposite to the first end, and the arc structure is fixed to the top wall of the hollow injection bin;

[0010] An upper opening, which is disposed at a predetermined position between the first end and the second end of the top wall of the injection bin and is aligned with the lower opening;

[0011] A push-pull cylinder, which is slidably connected to the injection chamber to transport the mortar from the first end to the retaining wall screw hole, and the upper opening is switched between closed and open via the sliding push-pull cylinder;

[0012] The push rod handle is arranged on a side of the push-pull cylinder away from the second end.

[0013] In the mortar injection device for sealing the screw hole of the retaining wall, the distance between the predetermined position and the first end is positively correlated with the volume of the screw hole of the retaining wall.

[0014] In the mortar injection device for sealing screw holes in retaining walls, the injection bin is provided with scale lines.

[0015] In the mortar injection device for sealing screw holes in retaining walls, the injection chamber is a cylindrical structure with openings at both ends.

[0016] In the mortar injection device for sealing screw holes in retaining walls, the mortar bin comprises a rectangular structure and a triangular structure arranged at the bottom of the rectangular structure.

[0017] In the mortar injection device for sealing the screw hole of a retaining wall, the upper opening is a long through hole extending along the central axis of the injection bin.

[0018] In the mortar injection device for sealing screw holes in retaining walls, a limiting baffle is provided on the side of the injection chamber away from the second end.

[0019] In the mortar injection device for sealing screw holes in retaining walls, the push-pull cylinder is a single-rod push-pull cylinder.

[0020] In the mortar injection device for sealing screw holes in retaining walls, the push-pull cylinder is a hollow push-pull cylinder.

[0021] In the mortar injection device for sealing the screw hole of the retaining wall, the first end is provided with an injection head which is plugged into the screw hole of the retaining wall.

[0022] In the above technical scheme, the utility model provides a mortar injection device for sealing the screw holes of retaining walls, which has the following beneficial effects: the mortar injection device for sealing the screw holes of retaining walls is easy to operate, easy to process, and has low material cost. Continuous grouting is possible, and the upper mortar bin is not closed. Cement mortar can be filled in time according to the remaining mortar in the bin. The device has a light weight of 2.2kg. After filling with mortar (1L), the total weight is 4.7kg, and it is easy for personnel to operate. After the device is used, the upper opening of the injection bin can be clamped by pushing the push-pull cylinder to the limit baffle to restore the initial state and prevent mortar leakage and waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 The utility model is a structural schematic diagram of a mortar injection device for sealing screw holes in a retaining wall.

[0025] Figure 2 The utility model is a schematic diagram of the mortar bin structure of the mortar injection device for sealing the screw holes of the retaining wall.

[0026] Figure 3 The utility model is a cross-sectional schematic diagram of a mortar bin of a mortar injection device for plugging screw holes in a retaining wall.

[0027] Figure 4 The utility model is a schematic diagram of the top view of the mortar bin of the mortar injection device for sealing the screw holes of the retaining wall.

[0028] Figure 5 The utility model is a schematic diagram of the grouting chamber structure of the mortar injection device for sealing the screw holes of the retaining wall.

[0029] Figure 6 The utility model is a schematic cross-sectional structure diagram of a mortar injection device for plugging screw holes in a retaining wall. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships 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 referred device or element 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.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] like Figure 1-6 As shown, in one embodiment, a mortar injection device for sealing a screw hole in a retaining wall of the utility model comprises:

[0039] A mortar bin 4, which contains mortar for plugging the screw holes of the retaining wall, and the mortar bin 4 has a tapered structure from top to bottom;

[0040] A feed opening 5, which is arranged at the bottom of the tapered structure, and the cross section of the feed opening 5 in the vertical direction is an arc-shaped structure that is concave upwards;

[0041] An injection bin 6, which is fixedly connected to the mortar bin 4, the injection bin 6 comprises a first end facing the screw hole of the retaining wall and a second end opposite to the first end, and the arc structure is fixed to the top wall of the hollow injection bin 6;

[0042] An upper opening, which is disposed at a predetermined position between the first end and the second end of the top wall of the injection chamber 6 and is aligned with the discharge opening 5;

[0043] A push-pull cylinder 3, which is slidably connected to the injection chamber 6 to transport the mortar from the first end to the retaining wall screw hole, and the upper opening is switched between closed and open via the sliding push-pull cylinder 3;

[0044] The push rod handle 1 is arranged on a side of the push-pull cylinder 3 away from the second end.

[0045] In a preferred embodiment of the mortar injection device for sealing a screw hole in a retaining wall, the distance between the predetermined position and the first end is positively correlated to the volume of the screw hole in the retaining wall.

[0046] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, the injection chamber 6 is provided with scale lines.

[0047] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, the injection chamber 6 is a cylindrical structure with openings at both ends.

[0048] In a preferred embodiment of the mortar injection device for sealing screw holes in a retaining wall, the mortar bin 4 includes a rectangular structure and a triangular structure arranged at the bottom of the rectangular structure.

[0049] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, the upper opening is a long through hole extending along the central axis of the injection bin 6 .

[0050] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, a limiting baffle 2 is provided on a side of the injection chamber 6 away from the second end.

[0051] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, the push-pull cylinder 3 is a single-rod push-pull cylinder 3 .

[0052] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, the push-pull cylinder 3 is a hollow push-pull cylinder 3 .

[0053] In a preferred embodiment of the mortar injection device for sealing screw holes in retaining walls, the first end is provided with an injection head for plugging into the screw holes in the retaining wall.

[0054] In one embodiment, a mortar injection device for sealing the screw hole of a retaining wall includes a mortar bin 4 and an injection bin 6. The mortar bin 4 has a capacity of 1L. The discharge port 5 of the mortar bin 4 is welded and connected to the injection bin 6. The single-rod push-pull cylinder 3 is a movable part and can be taken out freely. The injection bin 6 has a total length of 30cm, an available stroke of 20cm, and a mortar capacity of 250ml. This device uses a mortar bin 4 to connect the injection bin 6, which can realize timely and continuous filling of mortar. The single-rod push-pull cylinder 3 pushes the injection bin 6 to press the cement mortar into the screw hole, and at the same time closes the discharge port 5 to ensure the grouting filling pressure. A limit baffle 2 is set on the single-rod push-pull cylinder 3 to prevent the push-pull cylinder 3 from exceeding the stroke and colliding with the screw hole of the wall body, affecting the quality.

[0055] In one embodiment, a feed opening 5 is opened at the connection between the mortar bin 4 and the injection bin 6, and the connection position is welded and fixed around and polished. The hollow push-pull cylinder 3 is pushed into the injection bin 6 through the push rod handle 1 until the limit baffle 2 clamps the upper port of the injection bin 6 to close the feed opening 5, and the mortar bin 4 is filled with cement mortar. The grouting device is sealed to the screw hole at the corresponding position of the retaining wall, and the lower port of the injection bin 6 is aligned with the screw hole and pressed tightly. Pull out the hollow push-pull cylinder 3 through the push rod handle 1, so that the cement mortar in the mortar bin 4 is filled into the injection bin 6 through the discharge port 5 until the slurry in the mortar bin 4 no longer sinks. After filling, push in the single-rod push-pull cylinder 3, and inject the corresponding amount of mortar according to the length of the screw hole. The mortar injection amount can be confirmed according to the scale marked on the hollow push-pull cylinder 3. The total volume of the injection bin 6 is 250 ml, and the available stroke of the hollow push-pull cylinder 3 is 20 cm. The standard scale is calculated according to the relationship between the advancement stroke and the total volume. When the mortar in a single hole of the injection bin 6 is not used up, the lower port of the injection bin 6 can be lifted to the port upward and transferred to the next hole for continued use. After the plugging grouting device is used, the hollow push-pull cylinder 3 is pushed into the injection bin 6 through the push rod handle 1 until the limit baffle 2 clamps the second end of the injection bin 6 to close the discharge port 5 to prevent the residual mortar in the mortar bin 4 from leaking and wasting. The remaining mortar can be poured back into the mortar mixing barrel through the upper opening of the mortar bin 4. After it is determined that it will not be used temporarily, the single-rod push-pull cylinder 3 can be taken out, and the mortar bin 4 and the injection bin 6 can be cleaned to prevent the residual mortar from hardening inside, so as to facilitate the next use.

[0056] In one embodiment, the push-pull cylinder 3 is pulled open, and cement mortar is automatically filled into the injection bin 6. During the process of pressing the push-pull cylinder 3, the feed opening 5 is closed, the mortar filling is stopped, and the mortar in the injection bin 6 is pressed into the screw hole. The upper opening of the mortar bin 4 is open, which is convenient for timely replenishment of mortar. When the push-pull cylinder 3 is pulled out, the feed opening 5 is opened, and the mortar in the bin sinks by gravity to fill the injection bin 6. The upper section of the injection bin 6 is mainly used to clamp the push-pull cylinder 3 to ensure that it does not deviate during the push-pull process. The middle section and the lower section provide space and pressure for mortar filling and pressing into the screw hole.

[0057] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0058] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mortar injection device for sealing screw holes in retaining walls, characterized in that: These include, A mortar bin containing mortar for plugging screw holes in the retaining wall, wherein the mortar bin has a tapered structure from top to bottom; A feed opening, which is arranged at the bottom of the tapered structure, and the cross section of the feed opening in the vertical direction is an upwardly concave arc structure; An injection bin, which is fixedly connected to the mortar bin, the injection bin comprises a first end facing the screw hole of the retaining wall and a second end opposite to the first end, and the arc structure is fixed to the top wall of the hollow injection bin; An upper opening, which is disposed at a predetermined position between the first end and the second end of the top wall of the injection bin and is aligned with the lower opening; A push-pull cylinder, which is slidably connected to the injection chamber to transport the mortar from the first end to the retaining wall screw hole, and the upper opening is switched between closed and open via the sliding push-pull cylinder; The push rod handle is arranged on a side of the push-pull cylinder away from the second end.

2. A mortar injection device for plugging screw holes in retaining walls according to claim 1, characterized in that: The distance between the predetermined position and the first end is positively correlated with the volume of the screw hole of the retaining wall.

3. A mortar injection device for sealing screw holes in a retaining wall according to claim 1, characterized in that: The injection chamber is provided with scale lines.

4. A mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: The injection chamber is a cylindrical structure with openings at both ends.

5. The mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: The mortar bin comprises a rectangular structure and a triangular structure arranged at the bottom of the rectangular structure.

6. A mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: The upper opening is a long through hole extending along the central axis of the injection bin.

7. A mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: A limiting baffle is provided on one side of the injection bin away from the second end.

8. The mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: The push-pull cylinder is a single-rod push-pull cylinder.

9. A mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: The push-pull cylinder is a hollow push-pull cylinder.

10. A mortar injection device for sealing screw holes in retaining walls according to claim 1, characterized in that: The first end is provided with a spray head which is plugged into the screw hole of the retaining wall.

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