Sleeve fixing device

Abstract

The utility model discloses a sleeve fixing device which comprises a fixing ring. A clamping mechanism is arranged on the outer side of the fixing ring. The clamping mechanism is provided with two clamping jaws which are oppositely arranged in pairs, and the distance between the two clamping jaws is adjustable. The inner side of the fixing ring is provided with more than three sleeve connecting pieces which are distributed in the circumferential direction. The sleeve connecting piece is provided with a sleeve connecting part which is arranged inwards in the radial direction. And the sleeve connecting part of at least one sleeve connecting piece is arranged in an adjustable manner along the radial direction relative to the fixing ring. According to the casing pipe fixing device, the fixing ring is fixed in the pouring space through the clamping mechanism, the embedded pipeline is limited among the multiple casing pipe connecting parts through the multiple casing pipe connecting pieces, deviation of the embedded pipeline in the pouring process is avoided, and the efficiency of embedding operation in the pouring process is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a casing fixing device. Background Art

[0002] In order to facilitate the laying of various pipes such as water supply and drainage in buildings, it is often necessary to pre-embed pipes in the concrete floor during the concrete construction of the building floor. Before pouring the floor, the casing needs to be fixed to ensure the position accuracy and pre-embedded quality of the casing.

[0003] The traditional method is to directly fix the pipe on the casting formwork. When the sleeve is fixed on the formwork, it will cause damage to the formwork to a certain extent. And it is very difficult to remove the connection between the sleeve and the formwork after pouring, which is not convenient for the disassembly of the formwork, and then affects the construction efficiency and quality. Utility Model Content

[0004] The utility model aims to provide a casing fixing device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The technical solutions adopted to solve the above technical problems are:

[0006] A casing fixing device comprises: a fixing ring;

[0007] The fixing ring is in the shape of a circular ring, and a clamping mechanism is provided on the outer side of the fixing ring, wherein the clamping mechanism has two clamping jaws arranged opposite to each other in pairs and with adjustable spacing;

[0008] The inner side of the fixing ring is provided with more than three sleeve connectors distributed around the circumference, and the sleeve connectors have sleeve connector portions arranged radially inward, wherein the sleeve connector portion of at least one of the sleeve connectors is radially adjustable relative to the fixing ring.

[0009] The sleeve fixing device provided by the utility model has at least the following beneficial effects: the two clamping claws of the clamping mechanism clamp the steel bars in the casting space, so that the fixing ring can be fixed in the casting area by the clamping mechanism. The embedded pipe can be restricted in the middle of the fixing ring by the sleeve connector. The sleeve connecting part of at least one of the sleeve connectors can be adjusted radially, and when the sleeve connecting part is adjusted radially outward, the embedded pipe can be easily inserted between the multiple sleeve connecting parts, and then the sleeve connecting part is adjusted inward to restrict the embedded pipe within the range surrounded by the multiple sleeve connecting parts, thereby avoiding the displacement of the embedded pipe during the casting process. The sleeve fixing device of the utility model can adapt to embedded pipes of different diameters, has a simple structure, is easy to use, and can greatly improve the efficiency of the embedded operation during the casting process.

[0010] As a further improvement of the above technical solution, the clamping mechanisms are arranged in pairs on the left and right sides of the fixing ring.

[0011] As a further improvement of the above technical solution, the two clamping jaws arranged in a pair are provided with a clamping groove in the shape of a semicircular arc on the opposite sides thereof.

[0012] As a further improvement of the above technical solution, the two sleeve connectors are arranged symmetrically on the left and right, and another sleeve connector with an adjustable sleeve connecting portion is arranged on the perpendicular bisector of the connecting line.

[0013] As a further improvement of the above technical solution, the three sleeve connectors are evenly distributed around the circumference of the fixing ring, and the three sleeve connectors all have an adjustable sleeve connecting portion.

[0014] As a further improvement of the above technical solution, one end of the sleeve connector is connected to the fixing ring in a radial sliding manner, and the other end has the sleeve connecting portion.

[0015] As a further improvement of the above technical solution, the three sleeve connectors are synchronously transmission connected to each other.

[0016] As a further improvement of the above technical solution, the fixed ring is coaxially rotatably provided with a drive slip ring, a drive connecting rod is provided between the drive slip ring and the sleeve connecting piece, and both ends of the drive connecting rod are rotatably hinged with the drive slip ring and the sleeve connecting piece respectively.

[0017] As a further improvement of the above technical solution, the fixed ring has a coaxially arranged annular sliding groove, and the driving slip ring is slidably embedded in the annular sliding groove.

[0018] As a further improvement of the above technical solution, a pin hole and a latch pin arranged in the radial direction are further provided between the annular slide groove and the drive slip ring, a plurality of the pin holes are distributed around the circumference, and the latch pin is elastically arranged in the radial direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0020] Figure 1 This is an axial view of an embodiment of the sleeve fixing device provided by the utility model;

[0021] Figure 2 This is an axial cross-sectional view of an embodiment of the sleeve fixing device provided by the utility model;

[0022] Figure 3 The utility model provides a sleeve fixing device, and a cross-sectional view of an embodiment thereof at the clamping mechanism position.

[0023] In the figure: 100, fixing ring; 110, annular groove; 120, pin hole; 200, sleeve connecting piece; 210, sleeve connecting part; 300, driving slip ring; 310, latch; 320, compression spring; 400, driving connecting rod; 500, clamping mechanism; 510, clamping claw; 520, clamping arm; 521, adjusting pin; 530, adjusting rod; 531, adjusting hole. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, 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 cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figures 1 to 3 The sleeve fixing device of the utility model is implemented as follows:

[0029] A casing fixing device includes a fixing ring 100.

[0030] The fixing ring 100 has a ring body in the shape of a circular ring. A clamping mechanism 500 is arranged on the outer side of the fixing ring 100. The clamping mechanism 500 has two clamping jaws 510 arranged in pairs. The two clamping jaws 510 are arranged opposite to each other and the distance between them is adjustable.

[0031] The inner side of the fixing ring 100 has at least three sleeve connectors 200. The sleeve connectors 200 are distributed around the circumference of the fixing ring 100. The sleeve connectors 200 have sleeve connectors 210 arranged radially inwardly along the fixing ring 100. The sleeve connector 210 of at least one of the sleeve connectors 200 is adjustable in the radial direction.

[0032] In actual use, the clamping mechanism 500 can clamp the cast steel bars through the two clamping claws 510, so that the fixing ring 100 can be fixed in the casting area through the clamping mechanism 500. The pre-buried pipe can be limited to the middle part of the fixing ring 100 through the sleeve connector 200. The sleeve connecting part 210 of at least one sleeve connector 200 can be adjusted radially. When the sleeve connecting part 210 is adjusted radially outward, the pre-buried pipe can be easily inserted between multiple sleeve connecting parts 210. Then, when the sleeve connecting part 210 is adjusted inward, the pre-buried pipe can be limited to the range surrounded by multiple sleeve connecting parts 210, so as to avoid the pre-buried pipe from being offset during the casting process.

[0033] In this embodiment, the two clamping jaws 510 are arranged opposite to each other. A circular arc-shaped clamping groove is provided on the opposite side of the two clamping jaws 510. In actual use, the steel bar can be clamped between the two circular arc-shaped clamping grooves to fix the fixing ring 100 in the casting space.

[0034] In order to prevent the fixing ring 100 fixed by a single clamping mechanism 500 from swinging during the pouring process, the fixing ring 100 is provided with the clamping mechanism 500 on both sides. The fixing ring 100 is fixed by two clamping mechanisms 500 arranged in pairs on the left and right sides.

[0035] In this embodiment, the clamping mechanism 500 is hinged to the fixing ring 100 so as to adapt to the use requirements of different positions.

[0036] The clamping mechanism 500 further includes a clamping arm 520. One end of the clamping arm 520 is rotatably hinged to the fixing ring 100. The clamping arm 520 is provided with an adjustment rod 530. The adjustment rod 530 is adjustably connected to the clamping arm 520 along the connecting line direction of the two clamping jaws 510. The two clamping jaws 510 are fixedly connected to the adjustment rod 530 and the clamping arm 520, respectively.

[0037] The adjusting rod 530 is in the shape of an elongated strip, and the clamping arm 520 has an adjusting cavity corresponding to the adjusting rod 530, and the adjusting rod 530 is slidably inserted in the adjusting cavity. An adjusting groove is provided on the side wall of the adjusting cavity, and one of the clamping jaws 510 is movably disposed in the adjusting groove and fixedly connected to the adjusting rod 530.

[0038] The adjusting rod 530 has a plurality of adjusting holes 531 arranged along the extending direction of the adjusting cavity. The clamping arm 520 is elastically provided with an adjusting pin 521 corresponding to the adjusting hole 531. The adjusting pin 521 is exposed outside the operating portion.

[0039] For the pre-buried pipeline using a round tube, in order to confine the pre-buried pipeline between the multiple sleeve connecting parts 210, it is preferred that the angle between adjacent sleeve connecting parts 200 is less than 180 degrees.

[0040] In order to stably support and confine the pre-buried pipe in the fixing ring 100, in this embodiment, two of the sleeve connectors 200 are arranged symmetrically and are respectively arranged on the left and right sides of the lower part of the fixing ring 100. Another sleeve connector 200 is arranged at the upper end of the inner side of the fixing ring 100. The sleeve connector 200 arranged on the upper side is located on the perpendicular bisector of the connection line of the two sleeve connectors 200 arranged symmetrically. The sleeve connector 200 arranged on the upper side has the sleeve connecting portion 210 that can be adjusted up and down.

[0041] In actual use, the two sleeve connectors 200 arranged at the lower side can support the lower side of the pre-buried pipe, and the two sleeve connectors 210 can respectively support the two sides of the pre-buried pipe. The sleeve connector 210 arranged at the upper side can be moved upward to facilitate the insertion of the pre-buried pipe, and can also be adjusted downward to limit the pre-buried pipe.

[0042] In a further embodiment, the number of the sleeve connectors 200 is three, and the three sleeve connectors 200 are evenly distributed around the circumference of the fixing ring 100. The three sleeve connectors 200 all have an adjustable sleeve connecting portion 210.

[0043] The sleeve connector 200 is connected to the fixing ring 100 by radial sliding. The sleeve connector portion 210 is disposed at one end of the sleeve connector 200 facing inward in the radial direction. In this embodiment, the sleeve connector portion 210 is in the shape of a plate extending in an arc.

[0044] The three sleeve connectors 200 evenly distributed in the circumferential direction can define a circular range through the three sleeve connectors 210. When the pre-buried pipe is inserted between the three sleeve connectors 210, the three sleeve connectors 210 can evenly press against the three directions of the pre-buried pipe, so that the force is evenly applied. Furthermore, by controlling the three sleeve connectors 210 so that the distances extended in the radial direction are consistent, the coaxial arrangement of the pre-buried pipe and the fixing ring 100 can be achieved, and the pre-buried pipe can be prevented from being too close to one side edge of the casting space.

[0045] In this embodiment, the sleeve connector 200 is controlled by a driving slip ring 300. The driving slip ring 300 is in the shape of a circular ring. The fixing ring 100 has a coaxially arranged annular slide groove 110. The driving slip ring 300 is coaxially slidably embedded in the annular slide groove 110. A driving connecting rod 400 is provided between the driving slip ring 300 and the sleeve connector 200. The driving connecting rod 400 is in the shape of a long strip, and the two ends of the driving connecting rod 400 are respectively rotatably hinged with the driving slip ring 300 and the sleeve connector 200. The hinge axes of the two ends of the driving connecting rod 400 are parallel to the axis of the fixing ring 100. When the driving slip ring 300 rotates in the annular groove 110 relative to the fixing ring 100, it can drive the driving connecting rod 400 to swing, change the distance between the sleeve connector 200 and the driving slip ring 300, so that the sleeve connector 200 slides radially relative to the fixing ring 100, thereby achieving the tightening or loosening of the embedded pipe.

[0046] In this embodiment, a radially extending sliding guide cylinder is provided inside the fixing ring 100. One end of the sleeve connector 200 is provided with the sleeve connector portion 210, and the other end is slidably inserted into the sliding guide cylinder to achieve a sliding connection between the sleeve connector 200 and the fixing ring 100.

[0047] In order to prevent the pre-buried pipe from easily pushing the sleeve connection part 210 open and causing displacement, in this embodiment, a pin hole 120 and a latch 310 arranged in a radial direction are further provided between the annular slide groove 110 and the drive slip ring 300. A plurality of the pin holes 120 are arranged and distributed around the circumference. The latch 310 is elastically arranged in the radial direction and inserted into one of the pin holes 120.

[0048] In this embodiment, a plurality of pin holes 120 are arranged at equal intervals around the circumference on the outer groove surface of the annular groove 110. The latch pin 310 is elastically connected to the driving slip ring 300 in the radial direction, so that the latch pin 310 has a tendency to extend outward in the radial direction.

[0049] Furthermore, a circumferentially extending avoidance groove is provided on the inner side of the fixing ring 100. The outward end of the latch 310 has a plug, and the other end passes through the drive slip ring 300 and the avoidance groove and is exposed on the inner side of the fixing ring 100. A compression spring 320 is sleeved on the outer side of the latch 310, and the two ends of the compression spring 320 are elastically abutted against the latch 310 and the drive slip ring 300, respectively.

[0050] In order to facilitate the control of the relative rotation between the driving slip ring 300 and the fixing ring 100, the driving slip ring 300 is provided with a driving handle. The fixing ring 100 has a driving groove extending along an arc, and the driving handle is movably arranged in the driving groove. During the pre-embedding process, the driving slip ring 300 is rotated by the driving handle to realize the expansion and contraction of the sleeve connector 200.

[0051] In order to avoid obstruction to the structure of the pin hole 120 or the plug pin 310, in this embodiment, the driving handle extends along the axial direction of the driving sliding ring 300. The driving groove is provided on one axial side of the fixing ring 100 and communicates with the annular sliding groove 110. One end of the driving handle is connected to the driving sliding ring 300, and the other end passes through the driving groove and is exposed to the fixing ring 100.

[0052] In actual use, the latch 310 is pulled inward to disengage from the pin hole 120, and the driving handle can be used to drive the driving slip ring 300 to rotate relative to the fixing ring 100, thereby driving the sleeve connector 200 to expand and contract radially through the driving connecting rod 400 to clamp or loosen the pre-buried pipe. After the pre-buried pipe is fixed, the latch 310 is loosened and inserted into the corresponding pin hole 120 by elastic force to prevent loosening.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the present invention. These changes, modifications, equivalent variations or substitutions are all included in the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A casing fixing device, characterized in that: include: Fixed ring; The fixing ring is in the shape of a circular ring, and a clamping mechanism is provided on the outer side of the fixing ring, wherein the clamping mechanism has two clamping jaws arranged opposite to each other in pairs and with adjustable spacing; The inner side of the fixing ring is provided with more than three sleeve connectors distributed around the circumference, and the sleeve connectors have sleeve connector portions arranged radially inward, wherein the sleeve connector portion of at least one of the sleeve connectors is radially adjustable relative to the fixing ring.

2. The casing fixing device according to claim 1, characterized in that: The clamping mechanisms are arranged in pairs on the left and right sides of the fixing ring.

3. The casing fixing device according to claim 1, characterized in that: The two clamping jaws arranged in pairs are both provided with clamping grooves in the shape of semicircular arcs on the opposite sides thereof.

4. The casing fixing device according to claim 1, characterized in that: The two sleeve connectors are arranged symmetrically on the left and right, and another sleeve connector with an adjustable sleeve connector is arranged on the perpendicular bisector of the connecting line.

5. The casing fixing device according to claim 1, characterized in that: The three sleeve connectors are evenly distributed around the circumference of the fixing ring, and all of the three sleeve connectors have an adjustable sleeve connecting portion.

6. The casing fixing device according to claim 5, characterized in that: One end of the sleeve connector is connected to the fixing ring in a radially sliding manner, and the other end has the sleeve connector.

7. The casing fixing device according to claim 6, characterized in that: The three sleeve connectors are synchronously transmission connected to each other.

8. The casing fixing device according to claim 7, characterized in that: The fixed ring is coaxially rotatably provided with a driving slip ring, a driving connecting rod is provided between the driving slip ring and the sleeve connecting piece, and two ends of the driving connecting rod are rotatably hinged with the driving slip ring and the sleeve connecting piece respectively.

9. The casing fixing device according to claim 8, characterized in that: The fixing ring has a coaxially arranged annular sliding groove, and the driving sliding ring is slidably embedded in the annular sliding groove.

10. The casing fixing device according to claim 9, characterized in that: Pin holes and latch pins are also provided in the radial direction between the annular sliding groove and the driving slip ring. A plurality of the pin holes are distributed around the circumference, and the latch pins are elastically provided in the radial direction.

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