Device for embedding nut into positioning hole in mold for mounting hole guiding device

Abstract

The invention relates to a device for embedding a nut into a positioning hole in a die for installing a hole guiding device, which comprises a shaping nut, a filler filling space is reserved at the upper part of the shaping nut and is provided with a protruding part, a filler filling space is reserved at the bottom of the shaping nut, and a groove metal ring sheet is positioned and installed in the middle of the top of the shaping nut through the protruding part. The groove metal ring sheet is used for sealing and seepage prevention by embedding a water stop elastic rubber ring sealing sheet into the upper surface layer groove, reserving a filler filling space at the bottom of the shaping nut and filling grease between the upper part of the shaping nut and a gap of the groove metal ring sheet. The device is easy to manufacture, small in size, convenient to operate and low in cost, positioning holes of an original concrete pipe piece mold can be effectively replaced, and the situation that concrete grout leaks into the positioning holes can be effectively improved in the manufacturing process of the concrete pipe piece prefabricated part.

Description

Technical Field

[0001] The invention relates to an embedding nut device, in particular to an embedding nut device for a positioning hole on a concrete segment mold used for installing a hole guide device for a concrete segment prefabricated part. Background Art

[0002] With the continuous development of tunnel construction technology, a tunnel concrete segment prefabricated installation mode has been developed for the construction of tunnel lining. In the process of shield tunnel construction, a large number of concrete segment prefabricated parts are used for assembly, which not only ensures the construction quality, but also reduces the construction safety risk, simplifies the construction process, and greatly improves the construction efficiency. However, in the process of making tunnel concrete segment prefabricated parts, it is necessary to make a hole on the concrete segment, which requires the use of a mushroom-shaped positioning hole-making device. The traditional method is to set a positioning screw hole on the concrete segment prefabricated casting mold and screw the hole-making device into it. This method is prone to leakage in the connection part. To solve this problem, the connection part between the hole-making device and the mold needs to be improved. In the above situation, it is difficult to play an effective role by welding the connection part. And as the use time increases, the leakage problem of the mold will become more and more serious, so it is necessary to use replaceable accessories to prevent serious wear.

[0003] The wear of the positioning screw holes on the mold cannot be corrected, and it is very expensive to directly replace the mold. Replacing the easily worn parts with detachable devices can effectively reduce the economic losses caused by wear. There are currently no related products available, so it is necessary to design an embedded nut device that is simple to manufacture, small in size, easy to operate, low in cost, and can be embedded in the mold positioning hole and connected to the mushroom-shaped positioning guide hole device. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a nut embedding device for a positioning hole on a mold for installing a hole guide device.

[0005] The present invention is achieved through the following technical solutions:

[0006] A positioning hole embedded nut device on a mold for installing a hole-guiding device comprises a molding nut, the molding nut has a reserved filling space for filler on the top and a protrusion, and a reserved filling space for filler on the bottom. A grooved metal ring sheet is positioned and installed in the middle of the top of the molding nut through the protrusion, and the grooved metal ring sheet is embedded with a water-stop elastic rubber ring sealing sheet in the upper layer groove. The reserved filling space for filler at the bottom of the molding nut and the gap between the upper part and the grooved metal ring sheet are filled with grease to achieve sealing and anti-seepage.

[0007] Furthermore, the model of the molding nut is M12×1.75, and the size and volume of the molding nut can be adjusted according to actual needs.

[0008] Furthermore, the inner side wall of the shaping nut has threads and the outer side is smooth.

[0009] Furthermore, the inner diameter of the bottom layer of the grooved metal ring sheet is equal to the diameter of the shaping nut, and the inner diameter of the top layer of the grooved metal sheet is equal to the diameter of the shaping nut.

[0010] Furthermore, the outer diameter of the water-stop elastic rubber sealing ring sheet is the same as the inner diameter of the upper layer of the groove metal ring sheet, and the inner diameter of the water-stop elastic rubber sealing ring sheet is the same as the inner diameter of the lower layer of the groove metal ring sheet.

[0011] Furthermore, the lower part of the shaping nut is a conical structure. The gap between the conical structure and the reserved positioning hole of the concrete segment precast casting mold is filled with grease to seal the gap between the shaping nut and the concrete segment precast casting mold to achieve the purpose of stopping seepage.

[0012] Furthermore, the upper part of the shaping nut is a conical structure, and the space constructed by the conical structure and the grooved metal ring sheet is filled with grease to achieve the purpose of sealing the gap between the grooved metal ring sheet and the concrete pipe segment prefabricated casting mold, thereby ensuring that the gap is prevented from leaking.

[0013] Furthermore, the shaping nut is embedded in the reserved hole on the inner arc surface of the concrete segment precast casting template, and the outer diameter of the shaping nut is the same as the diameter of the reserved hole on the inner arc surface of the concrete segment precast casting mold. After the shaping nut is embedded in the concrete segment precast casting template, its height is flush with the inner arc surface of the concrete segment precast casting mold, and the grooved metal ring sheet clamps the upper protrusion of the shaping nut, and the water-stopping elastic rubber sealing ring sheet is embedded in the grooved metal ring sheet; when installing the mushroom head-shaped positioning hole device, the water-stopping elastic rubber sealing ring sheet is screwed into the positioning hole on the mold and embedded in the nut device, and the two threads are tightly locked and squeeze the water-stopping elastic rubber sealing ring sheet. After being squeezed, the water-stopping elastic rubber sealing ring sheet is deformed and achieves the anti-seepage effect.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention realizes the improvement and upgrading of the connection part of the mushroom-shaped positioning pre-embedded guide hole device. Compared with the original threaded positioning holes of the concrete segment precast casting mold, the embedded positioning modified nut device can achieve better anti-seepage effect, and there is no need to worry about the wear of the mold positioning hole threads. The wear of the mold positioning hole threads will lead to increased leakage and there is no better corrective measure. The embedded positioning modified nut device can realize the wear and replacement of the device without worrying about the wear of the threads and other problems.

[0016] The present invention realizes the modularization of the connector of the positioning hole guide device. Compared with the positioning hole on the mold, the device can be replaced after being worn. At the same time, the embedded positioning modified nut device has a better sealing effect, ensuring that the guide hole will not leak during the casting of the concrete segment prefabricated part. Compared with the concrete segment prefabricated part casting mold with its own positioning screw hole, the present invention does not need to worry about the wear of the screw hole. Instead, it uses embedded replaceable accessories and does not need to replace the entire mold due to wear, which greatly saves related expenses. The entire modified nut device is small and exquisite, simple to make, easy to operate, and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of a fixed nut in the embedded positioning modified nut device of the present invention;

[0018] Figure 2 It is a cross-sectional view of a groove metal ring sheet in the embedded positioning modified nut device of the present invention;

[0019] Figure 3 It is a cross-sectional view of a water-stop elastic rubber sealing ring sheet in the embedded positioning modified nut device of the present invention;

[0020] Figure 4 It is an overall cross-sectional view of the embedded positioning modified nut device of the present invention;

[0021] In the figure: 1. Molded nut; 2. Grooved metal ring sheet; 3. Water-stop elastic rubber sealing ring sheet; 4. Concrete pipe segment precast casting mold; 5. Upper gap of embedded positioning modified nut device; 6. Lower gap of embedded positioning modified nut device; 7. Upper protrusion of the molded nut. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0023] like Figures 1 to 4 As shown, an embedded positioning modified nut device of the present invention includes a shaping nut 1, a grooved metal ring sheet 2, a water-stopping elastic rubber sealing ring 3 for preventing seepage, a concrete pipe segment prefabricated part casting mold 4, a shaping nut top sealing grease 5, and a shaping nut bottom sealing grease 6.

[0024] The grooved metal ring sheet 2 is positioned and connected to the middle of the top of the shaping nut 1 through a protrusion, and the grooved metal ring sheet 2 is positioned and connected to the water-stopping elastic rubber sealing ring sheet 3 through the upper groove to stop water, and grease is filled between the lower gap of the shaping nut 1 and the upper gap between the grooved metal ring sheet 2 to achieve sealing and anti-seepage.

[0025] like Figure 1As shown, the bottom end of the shaping nut 1 is a conical structure, and the top is cut flat, and the top end is a conical structure with a protrusion. A gap 1 is formed between the bottom of the shaping nut 1 and the embedding hole, and grease is filled in it. This process has a sealing effect, further ensuring the anti-seepage ability of the connection part. By utilizing the gap between the conical structure at the bottom of the shaping nut 1 and the reserved positioning hole of the concrete pipe segment prefabricated casting mold 4, grease is filled in the gap to seal the gap between the shaping nut 1 and the concrete pipe segment prefabricated casting mold 4 to achieve the purpose of preventing seepage. By utilizing the space constructed by the conical structure at the top of the shaping nut 1 and the grooved metal ring sheet 2, grease is filled in it to achieve the purpose of sealing the gap between the grooved metal ring sheet 2 and the concrete pipe segment prefabricated casting mold 4, ensuring that the gap is prevented from leaking.

[0026] Preferably, the model of the fixed nut 1 is M12×1.75, and the size and volume of the fixed nut 1 can be adjusted according to actual needs. The inner side wall of the fixed nut 1 has threads and the outer side is smooth.

[0027] like Figure 2 As shown, the grooved metal ring sheet 2 uses a design specification in which the inner diameter of the lower layer is equal to the inner diameter of the fixed nut, and the inner diameter of the upper layer is equal to the outer diameter of the fixed nut, so as to achieve a tight combination with the positioning hole-guiding device and the fixed nut 1.

[0028] Preferably, the inner diameter of the bottom layer of the grooved metal ring sheet 2 is equal to that of the shaped nut 1 , and the inner diameter of the top layer of the grooved metal ring sheet 2 is equal to that of the shaped nut 1 .

[0029] like Figure 3 As shown, the outer diameter of the water-stop elastic rubber sealing ring sheet 3 is equal to the inner diameter of the upper layer of the grooved metal ring sheet 2, and the inner diameter of the water-stop elastic rubber sealing ring sheet 3 is equal to the inner diameter of the lower layer of the grooved metal ring sheet 2. The sealing and water-stopping effect is achieved by embedding the water-stop elastic rubber sealing ring sheet 3 into the grooved metal ring sheet 2.

[0030] like Figure 4 As shown, when in use, the shaping nut 1 is embedded in the reserved hole on the inner arc surface of the concrete segment precast casting template 4, and the outer diameter of the shaping nut 1 is the same as the diameter of the reserved hole on the inner arc surface of the concrete segment precast casting mold 4. After the shaping nut 1 is embedded in the concrete segment precast casting template 4, its height is flush with the inner arc surface of the concrete segment precast casting mold 4, the grooved metal ring sheet 2 clamps the upper protrusion 7 of the shaping nut, and the water-stop elastic rubber sealing ring sheet 3 is embedded in the grooved metal ring sheet 2; when installing the mushroom head-shaped positioning hole-guiding device, it is screwed into the embedded positioning modified nut device, and the threads of the two are tightly locked and squeeze the water-stop elastic rubber sealing ring sheet 3. After being squeezed, the water-stop elastic rubber sealing ring sheet 3 is deformed and achieves the anti-seepage effect.

[0031] When in use, the operator first fills grease in the positioning hole, then inserts the modified nut 1 into the positioning hole, waits until the top of the nut is flush with the inner arc surface of the template, then welds and fills grease, then embeds the grooved metal ring sheet 2, and finally embeds the water-stop elastic rubber sealing ring sheet 3, and finally the entire embedded positioning modified nut device is installed.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Construction personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nut embedding device for a positioning hole on a mold for installing a hole guide device, characterized in that: It includes a shaping nut, which has a reserved filling space for fillers on the top and a protrusion, and a reserved filling space for fillers on the bottom. The grooved metal ring sheet is positioned and installed in the middle of the top of the shaping nut through the protrusion, and the grooved metal ring sheet is sealed by a water-stop elastic rubber ring embedded in the upper groove. The filling space reserved at the bottom of the shaping nut and the gap between the upper part and the grooved metal ring sheet are filled with grease to achieve sealing and anti-seepage.

2. The nut embedding device for inserting a positioning hole on a mold for installing a hole guide device according to claim 1, characterized in that: The model of the fixed nut is M12×1.75, and the size and volume of the fixed nut can be adjusted according to actual needs.

3. The nut embedding device for inserting a positioning hole on a mold for installing a hole guide device according to claim 1, characterized in that: The inner side wall of the shaping nut has threaded teeth and the outer side is smooth.

4. The nut embedding device for inserting a positioning hole on a mold for installing a hole guide device according to claim 3, characterized in that: The inner diameter of the bottom layer of the grooved metal ring sheet is equal to the diameter of the fixed nut, and the inner diameter of the top layer of the grooved metal sheet is equal to the diameter of the fixed nut.

5. The positioning hole embedding nut device for installing the hole guide device on the mold according to claim 1, characterized in that: The outer diameter of the water-stop elastic rubber sealing ring sheet is the same as the inner diameter of the upper layer of the groove metal ring sheet, and the inner diameter of the water-stop elastic rubber sealing ring sheet is the same as the inner diameter of the lower layer of the groove metal ring sheet.

6. The nut embedding device for inserting a positioning hole on a mold for installing a hole guide device according to claim 1, characterized in that: The lower part of the shaping nut is a conical structure. The gap between the conical structure and the reserved positioning hole of the concrete pipe prefabricated component casting mold is filled with grease to seal the gap between the shaping nut and the concrete pipe prefabricated component casting mold to achieve the purpose of stopping seepage.

7. The positioning hole embedding nut device for installing the hole guide device on the mold according to claim 1, characterized in that: The upper part of the shaping nut is a conical structure. The space constructed by the conical structure and the grooved metal ring sheet is filled with grease to seal the gap between the grooved metal ring sheet and the concrete pipe segment prefabricated casting mold, thereby preventing the gap from leaking.

8. The nut embedding device for inserting a positioning hole on a mold for installing a hole guide device according to claim 1, characterized in that: The shaping nut is embedded in the reserved hole on the inner arc surface of the concrete segment precast casting template. The outer diameter of the shaping nut is the same as the diameter of the reserved hole on the inner arc surface of the concrete segment precast casting mold. After the shaping nut is embedded in the concrete segment precast casting template, its height is flush with the inner arc surface of the concrete segment precast casting mold. The grooved metal ring sheet clamps the upper protrusion of the shaping nut, and the water-stopping elastic rubber sealing ring sheet is embedded in the grooved metal ring sheet. When installing the mushroom head-shaped positioning hole device, the water-stopping elastic rubber sealing ring sheet is screwed into the positioning hole on the mold and embedded in the nut device. The two threads are tightly locked and squeeze the water-stopping elastic rubber sealing ring sheet. After being squeezed, the water-stopping elastic rubber sealing ring sheet is deformed and achieves the anti-seepage effect.

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