Pipe piece quick-plug connector fixing device

Abstract

The utility model discloses a pipe piece quick-plug connector fixing device which comprises a female connector assembly and a male connector assembly, the female connector assembly comprises a groove hole seat, an inserting piece and a first pre-tightening piece, the groove hole seat is used for forming a groove opening of a female connector, the inserting piece is inserted into the female connector, the first pre-tightening piece enables the inserting piece to be detachably connected to a mold, and the male connector assembly is used for fixing the inserting piece. The male connector assembly comprises an inserting plate, a clamping groove base and a second pre-tightening piece, the inserting plate is arranged on the mold, the clamping groove base is connected to the inserting plate, the middle of the male connector penetrates through the inserting plate, the quick connecting end is inserted into the clamping groove base, and the clamping groove base is detachably connected to the mold through the second pre-tightening piece. A connecting space is reserved for an inserting hole of the female connector on a duct piece through the slotted hole seat, pulling force is applied to the plug through the first pre-tightening piece, so that the female connector is pressed and positioned on a mold, pulling force is applied to the clamping groove seat through the second pre-tightening piece, so that the male connector is pressed and positioned on the mold, and therefore the male connector and the female connector are connected with the mold. And the male joint and the female joint can be conveniently pre-embedded in the tube sheet.

Description

Technical Field

[0001] This utility model relates to the field of tunnel segment manufacturing technology, and in particular to a quick-connect joint fixing device for tunnel segments. Background Technology

[0002] Shield tunnel segments are the core prefabricated components in shield tunnel construction. As the permanent lining structure of the tunnel, they bear the responsibility of resisting soil pressure, groundwater pressure, and special loads, directly affecting the overall safety, waterproofing performance, and durability of the tunnel. Their production typically uses high-strength, impermeable concrete, which is precisely molded and sealed to ensure high strength and reliable waterproofing.

[0003] Traditionally, tunnel segments are connected by bolts. Bolted connections require tightening the circumferential bolts first, then the axial bolts, and a second tightening after the segment detaches from the shield tail to ensure structural stability. However, this connection method is cumbersome. Therefore, to improve connection efficiency, a new quick-connect fitting socket connection method was designed.

[0004] Quick-connect fittings are divided into female and male fittings. Embedded parts with C-grooves are defined as female fittings, and T-shaped embedded parts are defined as male fittings. Both must be pre-embedded simultaneously on the longitudinal seam end face of the tunnel segment, and must be placed in a one-to-one correspondence. They are used in combination during tunnel segment assembly, i.e., the male and female fittings of adjacent tunnel segments are plugged into each other. Therefore, to meet the design requirements of the quick-connect structure, a device that can fix the quick-connect fitting onto the mold is currently needed. Utility Model Content

[0005] This application provides a quick-connect fitting fixing device for pipe segments, which solves the technical problem of how to fix quick-connect fittings on molds, making it easier for quick-connect fittings to be pre-embedded on the end face of pipe segments.

[0006] This application provides a quick-connect fitting fixing device for tunnel segments, including:

[0007] A female connector assembly, connected to a mold, includes: a slot seat, an insert, and a first pre-tightening member. The slot seat is used for slot forming of the female connector. The insert passes through the mold and is inserted into the female connector. The first pre-tightening member detachably connects the insert to the mold and applies a pre-tightening force to the insert in the direction of the outside of the mold.

[0008] A male connector assembly, connected to the mold, includes: an insert plate, a slot seat, and a second pre-tightening member. The insert plate is detachably disposed on the mold, and the slot seat is detachably connected to the insert plate. The middle portion of the male connector passes through the insert plate, and the quick-connect end of the male connector is inserted into the slot seat. The second pre-tightening member detachably connects the slot seat to the mold and applies a pre-tightening force to the slot seat in the direction of outward movement of the mold.

[0009] The beneficial effects of the above embodiments are as follows: by reserving connection space for the female connector's insertion hole on the tube segment through the slot seat, by applying tension to the plug through the first pre-tightening member, the female connector is pressed and positioned on the mold, and by applying tension to the slot seat through the second pre-tightening member, the male connector is pressed and positioned on the mold, thereby realizing the connection between the female connector, the male connector and the mold, which facilitates the casting and connection of the female connector and the male connector in the tube segment.

[0010] Based on the above embodiments, the embodiments of this application can be further improved as follows:

[0011] In one embodiment of this application, the female connector assembly further includes a first fixing seat connected to the mold, and the end of the insert extending outward from the outside of the female connector is detachably disposed on the first fixing seat. The beneficial effect of this step is that when the first pre-tightening member separates from the insert, the overall structure of the female connector and the insert can be separated from the mold, thereby achieving rapid demolding of the female connector.

[0012] In one embodiment of this application, the female connector assembly further includes a first sealing element disposed between the female connector and the first fixing seat. The beneficial effect of this step is that the first sealing element improves the sealing performance between the female connector and the first fixing seat, preventing grout leakage during concrete pouring and thus ensuring the quality of the tunnel segment formation.

[0013] In one embodiment of this application, the female connector assembly further includes a second sealing element disposed between the female connector and the slotted seat. The beneficial effect of this step is that the second sealing element improves the sealing performance between the female connector and the slotted seat, preventing grout leakage during concrete pouring and thus ensuring the quality of the tunnel segment formation.

[0014] In one embodiment of this application, the male connector assembly further includes a second fixing seat, which is connected to the mold. The integral structure formed by the insert plate, the male connector, and the slot seat is detachably mounted on the second fixing seat. The beneficial effect of this step is that when the second pre-tightening member separates from the insert plate, the integral structure can be separated from the mold, thereby achieving rapid demolding of the male connector.

[0015] In one embodiment of this application, the male connector assembly further includes a third sealing element disposed between the slot seat and the second fixing seat. The beneficial effect of this step is that the third sealing element improves the sealing performance between the second fixing seat and the slot seat, preventing grout leakage during concrete pouring and thus ensuring the quality of the segment molding.

[0016] In one embodiment of this application, the female connector assembly further includes a fourth sealing element disposed between the male connector and the retaining groove. The beneficial effect of this step is that the fourth sealing element improves the sealing performance between the male connector and the retaining groove, preventing grout leakage during concrete pouring and thus ensuring the quality of the tunnel segment formation.

[0017] In one embodiment of this application, the male connector assembly further includes a third preload member connected to the slot seat, the third preload member being used to apply an external force to the male connector toward the mold direction. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. 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.

[0019] Figure 1 A schematic diagram of the quick-connect fitting device for tunnel segments;

[0020] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0021] Figure 3 for Figure 1 A magnified view of part B in the diagram.

[0022] Among them, 1 is a female connector assembly, 101 is a slotted seat, 102 is a plug, 103 is a first pre-tightening member, 104 is a first fixing seat, 105 is a first slide, 106 is a first fixing bracket, 107 is a first sealing member, and 108 is a second sealing member.

[0023] 2. Male connector assembly, 201. Insert plate, 202. Slot seat, 203. Second preload, 204. Second fixing seat, 205. Second slide, 206. Positioning block, 207. Second fixing bracket, 208. Slot, 209. Third preload, 210. Third seal, 211. Fourth seal;

[0024] 3. Mold. Detailed Implementation

[0025] In this application, unless otherwise expressly specified and limited, the terminology used should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of different terms in this utility model according to the specific circumstances, and the scope of the specific meaning should be limited to achieving the function of this application.

[0026] In the description of this application, it should be understood that the directional terms or positional relationships described are based on the orientation or positional relationships shown in the accompanying drawings, or based on the orientation or positional relationships in actual use, and are only for the purpose of facilitating the description of the contents of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] like Figure 1-3 As shown, a quick-connect fitting fixing device for tunnel segments includes: a female connector assembly 1 and a male connector assembly 2. Both the female connector assembly 1 and the male connector assembly 2 are mounted on a mold 3. The female connector assembly 1 includes: a slot seat 101, an insert 102, and a first pre-tightening member 103. The slot seat 101 is used for slot forming of the female connector. The insert 102 passes through the mold 3 and is inserted into the female connector. The first pre-tightening member 103 detachably connects the insert 102 to the mold 3 and applies pressure to the insert 102 towards the outside of the mold 3. The male connector assembly 2 includes: a insertion plate 201, a slot seat 202, and a second pre-tightening member 203. The insertion plate 201 is detachably disposed on the mold 3, and the slot seat 202 is detachably connected to the insertion plate 201. The middle part of the male connector passes through the insertion plate 201, and the quick-connect end of the male connector is inserted into the slot seat 202. The second pre-tightening member 203 detachably connects the slot seat 202 to the mold 3 and applies a pre-tightening force to the slot seat 202 in the direction of the outside of the mold 3.

[0028] In some embodiments of this application, such as Figure 1 As shown, the female connector assembly 1 further includes: a first fixing seat 104, the first fixing seat 104 being connected to the mold 3, and the end of the plug 102 extending to the outside of the female connector being pluggably disposed on the first fixing seat 104.

[0029] In some embodiments of this application, such as Figure 1 , 2 As shown, the first fixing seat 104 and the slot seat 101 are both welded to the end face of the mold 3. The mold 3 has a through hole corresponding to the first fixing seat 104. The first fixing seat 104 is inserted into the through hole. A first slide rail 105 is opened through the first fixing seat 104. One end of the plug-in 102 is slidably inserted into the first slide rail 105. The other end of the plug-in 102 has a T-shaped positioning end and extends into the casting space (one side of the end face of the mold 3 is the casting space, and the other side is the external space). The positioning end is slidably inserted into the C-shaped slot of the female connector. Pressure is applied to the slot towards the mold 3 through the positioning end.

[0030] In some embodiments of this application, such as Figure 2As shown, the female connector assembly 1 also includes: a first fixing frame 106, which is welded to the end face of the mold 3 facing the external space; a first pre-tightening member 103, which is a bolt and a nut, with the nut threadedly connected to the bolt; the end of the bolt extends into the first slide rail 105 and is threadedly connected to the insert 102; the nut presses the first fixing frame 106 so that the bolt generates a pre-tightening force on the insert 102; when the first pre-tightening member 103 separates from the insert 102, the overall structure of the female connector and the insert 102 can be separated from the mold 3, thereby realizing the rapid demolding operation of the female connector.

[0031] In some embodiments of this application, such as Figure 2 As shown, the female connector assembly 1 further includes a first sealing element 107, which is disposed between the female connector and the first fixing seat 104.

[0032] In some embodiments of this application, such as Figure 2 As shown, a sealing groove is provided on the surface of the first fixed seat 104 facing the female joint. The sealing groove is arranged around the first slide 105. A first sealing element 107 is inserted in the sealing groove. The first sealing element 107 is a sealing rubber body. The female joint is pressed on the first sealing element 107 to improve the sealing between the female joint and the first fixed seat 104, avoid grout leakage during concrete pouring, and thus ensure the quality of segment molding.

[0033] In some embodiments of this application, such as Figure 2 As shown, the female connector assembly 1 further includes a second sealing element 108, which is disposed between the female connector and the slot seat 101.

[0034] In some embodiments of this application, such as Figure 2 As shown, the second sealing element 108 is a sealing rubber body. The end face of the second sealing element 108 facing the female joint is provided with a protruding structure that matches the shape of the groove of the female joint. The protruding structure is inserted into the female joint. The first sealing element 107 also extends to the lower end of the second sealing element 108. The second sealing element 108 is in close contact with the first sealing element 107. The second sealing element 108 also contacts the end face of the groove of the female joint. Through the second sealing element 108, the sealing performance between the female joint and the groove seat 101 is improved, and leakage of grout during concrete pouring is avoided, thereby ensuring the quality of the segment molding.

[0035] In some embodiments of this application, such as Figure 3 As shown, the male connector assembly 2 further includes a second fixing seat 204, which is connected to the mold 3. The integral structure formed by the insert plate 201, the male connector, and the slot seat 202 is pluggably disposed on the second fixing seat 204.

[0036] In some embodiments of this application, such as Figure 3 As shown, the second fixing seat 204 is welded to the through hole opened in the mold 3. A second slide 205 is opened through the second fixing seat 204. The insert plate 201 is slidably inserted in the second slide 205. A positioning block 206 is also arranged in the second slide 205. The positioning block 206 is used to position the insert plate 201 in the second slide 205 to prevent the insert plate 201 from falling from the second slide 205 into the external environment.

[0037] In some embodiments of this application, such as Figure 3 As shown, the male connector assembly 2 also includes: a second fixing frame 207, which is welded to the end face of the mold 3 facing the external space; a second pre-tightening member 203, which is made of bolt and nut, with the nut threadedly connected to the bolt and the bolt end threadedly connected to the slot seat 202; the nut presses the second fixing frame 207 so that the bolt generates a pre-tightening force on the slot seat 202; when the second pre-tightening member 203 separates from the slot seat 202, the male connector, together with the insert plate 201 and the slot seat 202, can be dislodged from the second slide 205, thereby realizing the rapid demolding operation of the female connector.

[0038] In some embodiments of this application, such as Figure 3 As shown, a slot 208 is provided on the right side of the insert plate 201 (as shown in the figure). The male connector is inserted into the slot 208 from right to left. When the male connector is embedded to the end of the tube segment, the insert plate 201 is pulled out from the second fixing seat 204. The insert plate 201 is pulled out to the left, which can realize the separation of the insert plate 201 and the male connector.

[0039] In some embodiments of this application, such as Figure 3 As shown, the lower end of the male connector is a T-shaped quick-connect end that can be quickly connected to the slot of the female connector. The slot seat 202 has a slot that matches the shape of the quick-connect end. The quick-connect end is inserted into the slot of the slot seat 202. The upper end of the slot seat 202 is connected to the lower end of the insert plate 201 by bolts to the lower end face of the insert plate 201.

[0040] In some embodiments of this application, such as Figure 3 As shown, the male connector assembly 2 further includes a third pre-tightening member 209, which is connected to the slot seat 202 and is used to apply an external force to the male connector in the direction of the mold 3.

[0041] In some embodiments of this application, such as Figure 3As shown, the third pre-tightening member 209 is a bolt, which is threadedly connected to the slot seat 202. The upper end of the bolt extends into the slot of the slot seat 202 and presses against the end face of the quick-connect end, applying an external force towards the mold 3 to the male connector, so that the male connector presses against the slot wall of the slot seat 202, thereby stably positioning the male connector and the slot seat 202. The reason for designing the third pre-tightening member 209 is that the female connector has a directly usable slot, and only a plug-in 102 matching the slot shape needs to be designed. The plug-in 102 applies pressure to the slot of the female connector to position the slot. However, the male connector lacks a positioning slot structure. When the quick-connect end of the male connector is directly placed into the slot seat 202, the positioning stability of the male connector is poor. Therefore, the third pre-tightening member 209 is designed to apply an external force to the male connector to press against the slot of the slot seat 202, so that the male connector and the slot seat 202 can be stably positioned.

[0042] In some embodiments of this application, such as Figure 3 As shown, the male connector assembly 2 further includes a third sealing element 210, which is disposed between the slot seat 202 and the second fixing seat 204. A sealing groove is formed around the outer periphery of the insert plate 201 on the inner wall of the second slide 205. The third sealing element 210 is inserted into the sealing groove. The third sealing element 210 can be a sealing ring or a sealing strip. A sealing structure is formed between the sealing ring and the insert plate 201. The third sealing element 210 improves the sealing performance between the second fixing seat 204 and the slot seat 202, preventing grout leakage during concrete pouring and thus ensuring the quality of the segment molding.

[0043] In some embodiments of this application, such as Figure 3 As shown, the female connector assembly 1 further includes a fourth sealing element 211, which is disposed between the male connector and the slot seat 202. A sealing groove is formed around the male connector in the slot 208, and a sealing strip is inserted into the sealing groove. The fourth sealing element 211 improves the sealing performance between the male connector and the slot seat 202, preventing grout leakage during concrete pouring and thus ensuring the quality of the segment molding.

[0044] The method of using this type of quick-connect segment fixing device is as follows:

[0045] (1) Insert the upper end of the plug 102 into the groove of the female connector, seal the groove with the first seal 107, and press the first seal 107 onto the slot seat 101. Rotate the bolt in the first pre-tightening member 103 so that the bolt moves upward until the nut therein presses against the first fixing bracket 106, generating a pre-tightening force on the plug 102, and firmly positioning the female connector on the first fixing seat 104:

[0046] (2) Insert the male connector into the insert plate 201, move the slot seat 202 so that the male connector is inserted into the slot seat 202, connect the slot seat 202 and the insert plate 201 with bolts, place the insert plate 201 in the second fixed seat 204, rotate the third pre-tightening member 209 so that the male connector is positioned in the slot seat 202, rotate the bolt in the second pre-tightening member 203 so that the bolt gradually enters the slot seat 202 until the nut in the second pre-tightening member 203 presses the second fixed frame 207, thereby generating a reverse pre-tightening force on the slot seat 202, and positioning the insert plate 201 on the second fixed seat 204;

[0047] (3) After the casting is completed, the first pre-tightening member 103 is separated from the plug-in 102, the second pre-tightening member 203 is separated from the insert plate 201, and the pipe segment is taken out from the mold 3. At the same time, the female connector drives the plug-in 102 to come out from the first fixed seat 104, and the male connector drives the insert plate 201 and the slot seat 202 to come out from the second fixed seat 204. Finally, the plug-in 102 is separated from the female connector, and the insert plate 201 is separated from the male connector.

[0048] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A quick-connect fitting fixing device for tunnel segments, characterized in that, include: A female connector assembly, connected to a mold, includes: a slot seat, an insert, and a first pre-tightening member. The slot seat is used for slot forming of the female connector. The insert passes through the mold and is inserted into the female connector. The first pre-tightening member detachably connects the insert to the mold and applies a pre-tightening force to the insert in the direction of the outside of the mold. A male connector assembly, connected to the mold, includes: an insert plate, a slot seat, and a second pre-tightening member. The insert plate is detachably disposed on the mold, and the slot seat is detachably connected to the insert plate. The middle portion of the male connector passes through the insert plate, and the quick-connect end of the male connector is inserted into the slot seat. The second pre-tightening member detachably connects the slot seat to the mold and applies a pre-tightening force to the slot seat in the direction of outward movement of the mold.

2. The quick-connect fitting fixing device for tunnel segments according to claim 1, characterized in that, The female connector assembly further includes: a first fixing seat, the first fixing seat being connected to the mold, and the end of the plug extending to the outside of the female connector being detachably disposed on the first fixing seat.

3. The quick-connect fitting fixing device for tunnel segments according to claim 2, characterized in that, The female connector assembly further includes a first sealing element, which is disposed between the female connector and the first fixing seat.

4. The quick-connect fitting fixing device for tunnel segments according to claim 1, characterized in that, The female connector assembly further includes a second seal, which is disposed between the female connector and the slotted seat.

5. The quick-connect fitting fixing device for tunnel segments according to claim 1, characterized in that, The male connector assembly further includes a second fixing seat, which is connected to the mold, and the integral structure formed by the insert plate, the male connector, and the slot seat is detachably mounted on the second fixing seat.

6. The quick-connect fitting fixing device for tunnel segments according to claim 5, characterized in that, The male connector assembly further includes a third seal, which is disposed between the slot seat and the second fixing seat.

7. The quick-connect fitting fixing device for tunnel segments according to claim 1, characterized in that, The female connector assembly further includes a fourth seal, which is disposed between the male connector and the slot seat.

8. The quick-connect fitting fixing device for tunnel segments according to claim 1, characterized in that, The male connector assembly further includes a third preload member connected to the slot seat, the third preload member being used to apply an external force to the male connector toward the mold direction.

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