Opposite-pulling type polygonal hoop device

Abstract

The utility model provides an opposite-pulling type polygonal hoop device, which is fixed on a polygonal pier column and comprises a clamping arm and a tensioning device, each clamping arm is provided with a hollow part and a bulge which can be nested with each other, the multiple clamping arms are respectively arranged on each surface of the polygonal pier column, and every two adjacent clamping arms surround the polygonal pier column through mutual staggering of the hollow parts and the bulges; fixing holes are formed in the two ends of the bulge; the tensioning device penetrates through the fixing holes, corresponding to the protrusions, in the two oppositely-arranged clamping arms and applies acting force to the two clamping arms clamped by the tensioning device. The polygonal pier column is encircled through mutual staggering of the hollowed-out parts and the bulges between the two adjacent clamping arms, so that the fitting degree of the hoop and the polygonal pier column is increased, and the friction force is more uniform; acting force is applied to the two clamped clamping arms through the tensioning devices, and multi-point and layered clamping force is formed between the multiple tensioning devices and the protrusions, so that the polygonal pier column is evenly stressed, and the appearance of the polygonal pier column is not prone to being damaged.

Description

Technical Field

[0001] This utility model relates to the field of bridge installation engineering technology, and more specifically, to a pull-type polygonal clamp device. Background Technology

[0002] With the country further increasing its infrastructure investment in the central and western regions and impoverished areas, the number of bridges and other infrastructure is constantly increasing. As one of the support methods for bridge cap beam construction, clamps are widely used in bridge construction due to their advantages such as lightweight structure, simple processing and manufacturing, and low cost. However, since they are mostly circular in shape, they are mostly used for circular piers.

[0003] Patent No. 202311827833.0 discloses a square clamp device, which uses two L-shaped clamps to enclose the pier column and fix it in two diagonal directions to complete the fixation of the square pier column.

[0004] However, the technical solutions of the above patents have the following drawbacks:

[0005] 1. The L-shaped clamp is used. The resultant force between the clamp and the pier is along the diagonal direction of the pier. The force is unreasonable, resulting in insufficient fit between the clamp and the pier and uneven friction.

[0006] 2. The bolt holes are concentrated on the diagonal surface, and the cross-section at the bolt holes is subjected to greater force, which makes the clamps prone to deformation after being stressed. Due to local stress concentration, the appearance quality of the pier may be damaged. Summary of the Invention

[0007] This utility model provides a pull-type polygonal clamp device to solve the technical problems in the prior art, such as insufficient fit between the clamp and the pier, uneven friction, and local stress concentration that cause easy damage to the appearance of the pier.

[0008] This utility model provides a pull-type polygonal clamping device, fixed to a polygonal pier, comprising: clamping arms and tensioning devices; the clamping arms are provided with hollows and protrusions for nesting with each other, and multiple clamping arms are arranged on each face of the polygonal pier, with adjacent clamping arms enclosing the polygonal pier through the interlacing hollows and protrusions; fixing holes are provided at both ends of the protrusions; the tensioning devices pass through the fixing holes of the corresponding protrusions in two oppositely arranged clamping arms and apply force to the two clamping arms they clamp, and multiple tensioning devices and multiple protrusions form a multi-point, layered clamping force.

[0009] Furthermore, the protrusions of the clamping arm are, from top to bottom, a first protrusion, a second protrusion, and a third protrusion extending horizontally. The gaps between two adjacent protrusions form a first hollow and a second hollow that can accommodate the protrusions, respectively, from top to bottom. The protrusions are fixed together by an inner plate. The two clamping arms arranged opposite each other are kept coplanar. In the two adjacent clamping arms, the first protrusion and the second protrusion of one clamping arm are respectively accommodated in the first hollow and the second hollow of the other clamping arm.

[0010] Furthermore, the clamping arm is divided into clamping arm A and clamping arm B. The first protrusion of the clamping arm B is accommodated in the first hollow of the clamping arm A, and the second protrusion of the clamping arm B is accommodated in the second hollow of the clamping arm A. An extension plate is provided on the side of the clamping arm A away from the polygonal pier, and the extension plate connects the first protrusion and the second protrusion.

[0011] Furthermore, the clamping arm has a plurality of support plates arranged along the length of the protrusion in the first and second hollows. The support plates have through holes, and the through holes of the plurality of support plates are connected to form a connecting channel to facilitate the passage of the tensioning device.

[0012] Furthermore, the inner plate is disposed on the side of the protrusion near the polygonal pier, and the inner plate contacts the polygonal pier through a friction element.

[0013] Furthermore, the vertical height of the cutout is greater than the vertical height of the protrusion.

[0014] Furthermore, the pier is quadrilateral, and the number of clamping arms is four.

[0015] Furthermore, each of the protrusions has eight fixing holes, which are arranged at both ends of the protrusion.

[0016] Furthermore, the tensioning device includes a screw and bolts, the screw passing through the fixing hole or the communicating channel, and the two ends of the screw fixing the clamping arm by the bolts.

[0017] Furthermore, a reinforcing plate is provided near the fixing hole.

[0018] The beneficial effects of this utility model are:

[0019] This utility model discloses a pull-type polygonal clamping device. Clamping arms are installed on each face of a polygonal pier. The interlocking perforations and protrusions between adjacent clamping arms enclose the polygonal pier, increasing the fit between the clamp and the pier and making the friction more uniform. A tensioning device passes through the fixing holes of corresponding protrusions in the two opposing clamping arms, applying force to the clamping arms. The combined force of multiple tensioning devices and multiple protrusions forms a multi-point, layered clamping force, ensuring uniform stress distribution on the polygonal pier, reducing stress concentration, and preventing damage to the pier's appearance due to localized stress.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a top view of an embodiment of the present invention in conjunction with a polygonal pier column;

[0024] Figure 3 This is another structural schematic diagram of an embodiment of the present utility model;

[0025] Figure 4 This is a perspective view of the clamping arm A in an embodiment of this utility model;

[0026] Figure 5 This is a front view of the clamping arm A in an embodiment of this utility model;

[0027] Figure 6 This is a top view of the clamping arm A in an embodiment of this utility model;

[0028] Figure 7 This is a perspective view of the clamping arm B in an embodiment of this utility model.

[0029] Figure label:

[0030] 1. Polygonal pier; 2. Clamping arm; 3. Tensioning device;

[0031] Clamping arm A 2A; Clamping arm B 2B;

[0032] Hollow 21; Protrusion 22; Fixing hole 220; First protrusion 221; Second protrusion 222; Third protrusion 223; First hollow 211; Second hollow 212; Inner plate 23; Extension support plate 24; Support plate 25; Friction component 26; Reinforcing plate 27; Screw 31; Bolt 32. Detailed Implementation

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0035] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0036] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0038] In the specification and claims of this utility model, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The pull-type polygonal clamp device according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0042] According to an embodiment of the present invention, a pull-type polygonal clamp device is fixed to a polygonal pier column 1, such as... Figure 1 , Figure 2 , Figure 3 As shown, the pull-type polygonal clamp device includes a clamping arm 2 and a tensioning device 3.

[0043] The clamping arms 2 are provided with hollows 21 and protrusions 22 that can be nested together. Multiple protrusions 22 and multiple hollows 21 are spaced apart along the height direction of the polygonal pier to form clamping arms 2. Multiple clamping arms 2 are arranged on each face of the polygonal pier 1. Adjacent clamping arms 2 are staggered vertically, so that the protrusions 22 and hollows 21 between them intersect each other. Adjacent clamping arms 2 enclose the polygonal pier 1 through the interlacing hollows 21 and protrusions 22, and each clamping arm 2 is completely attached to the surface of the polygonal pier.

[0044] The protrusion 22 has fixing holes 220 at both ends; the length of the protrusion 22 is greater than the width of the polygonal pier. The tensioning device 3 passes through the fixing holes 220 of the corresponding protrusion 22 in the two oppositely arranged clamping arms 2 and applies force to the two clamping arms 2, so that the two clamping arms 2 are attached to the surface of the polygonal pier. Since the clamping arms 2 are arranged in the height direction by horizontally arranged protrusions 22 and hollows 21 at intervals, a layered clamping force composed of multiple tensioning devices 3 is formed on each set of oppositely arranged clamping arms; multiple faces of the polygonal pier form multiple sets of oppositely arranged clamping arms; thus, a multi-point, layered clamping force is formed between the multiple tensioning devices 3 and the multiple protrusions 22.

[0045] According to this utility model, a pull-type polygonal clamping device is provided on each face of the polygonal pier 1. The polygonal pier 1 is surrounded by the interlacing of the hollow 21 and protrusion 22 between two adjacent clamping arms 2, which increases the fit between the clamp (clamping arm 2) and the polygonal pier 1 and also makes the friction more uniform. The tensioning device 3 passes through the fixing hole 220 of the corresponding protrusion 22 in the two oppositely arranged clamping arms 2 and applies a force to the two clamping arms 2. The force between multiple tensioning devices 3 and multiple protrusions 22 forms a multi-point, layered clamping force, which makes the polygonal pier 1 uniformly stressed, reduces stress concentration, and avoids damage to the appearance of the polygonal pier 1 due to local stress.

[0046] According to one embodiment of the present invention, the protrusions 22 of the clamping arm 2 are, from top to bottom, a first protrusion 221, a second protrusion 222, and a third protrusion 223 extending horizontally. The gaps between two adjacent protrusions form a first hollow 211 and a second hollow 212 that can accommodate the protrusions from top to bottom. The protrusions are fixed together by an inner plate 23. The positions of the two clamping arms 2 arranged opposite to each other are kept coplanar. Among the two adjacent clamping arms 2, the first protrusion 221 and the second protrusion 222 of one clamping arm are respectively accommodated in the first hollow 211 and the second hollow 212 of the other clamping arm.

[0047] In other words, such as Figures 1 to 4 As shown, the protrusions 22 of the clamping arm 2 extend horizontally. From top to bottom, the protrusions 22 are a first protrusion 221, a second protrusion 222, and a third protrusion 223. The gaps between adjacent protrusions form a first hollow 211 and a second hollow 212 from top to bottom, respectively, which can accommodate the protrusions. That is, there is a first hollow 211 between the first protrusion 221 and the second protrusion 222; and a second hollow 212 between the second protrusion 222 and the second protrusion 223. The three protrusions are fixed together by an inner plate 23, the width of which is smaller than the width of the protrusions 22.

[0048] When enclosing the polygonal pier, the two opposing clamping arms 2 remain coplanar, facilitating the tensioning device 3 to pass through the fixing holes 220 of the corresponding protrusions 22 in the two opposing clamping arms 2 and apply force to the clamped arms 2. In the two adjacent clamping arms 2, the first protrusion 221 and the second protrusion 222 of one clamping arm are respectively accommodated in the first hollow 211 and the second hollow 212 of the other clamping arm.

[0049] Therefore, according to the present invention, a pull-type polygonal clamping device is provided on each face of the polygonal pier 1. By using the first protrusion 221 and the second protrusion 222 of one of the two adjacent clamping arms to be accommodated in the first hollow 211 and the second hollow 212 of the other clamping arm, the two adjacent clamping arms 2 are interleaved to enclose the polygonal pier 1, which increases the fit between the clamp (clamping arm 2) and the polygonal pier 1, and also makes the friction more uniform. By keeping the two oppositely arranged clamping arms 2 in a coplanar position, the tensioning device 3 can pass through the fixing hole 220 of the corresponding protrusion 22 in the two oppositely arranged clamping arms 2 to apply force to the two clamping arms 2. The clamping arms apply a vertical force to the polygonal pier surface to eliminate lateral stress, increase the friction between the clamping arms 2 and the pier, and also prevent the appearance of the polygonal pier 1 from being damaged by local stress.

[0050] According to one embodiment of the present invention, the clamping arm 2 is divided into clamping arm A 2A and clamping arm B 2B. The first protrusion 221 of the clamping arm B 2B is accommodated in the first hollow 211 of the clamping arm A 2A, and the second protrusion 222 of the clamping arm B 2B is accommodated in the second hollow 212 of the clamping arm A 2A. An extension plate 24 is provided on the side of the clamping arm A 2A away from the polygonal pier, and the extension plate 24 connects the first protrusion 221 and the second protrusion 222.

[0051] In other words, such as Figure 1In the overall structural diagram of the embodiment shown, the first protrusion 221 of the clamping arm B 2B is accommodated in the first hollow 211 of the adjacent clamping arm A 2A, and the second protrusion 222 of the clamping arm B 2B is accommodated in the second hollow 212 of the adjacent clamping arm A 2A. The clamping arm A 2A also includes an extension plate 24, which is disposed on the side away from the polygonal pier column and connects the first protrusion 221 and the second protrusion 222. Since the clamping arm A 2A is higher than the clamping arm B 2B, the load force of the cap beam and support frame above the polygonal pier column 1 is mainly borne by the clamping arm A 2A. By setting the extension plate 24 between the first protrusion 221 and the second protrusion 222 of the clamping arm A 2A, the load force borne by the first protrusion 221 can be quickly transferred to the main body of the clamping arm A 2A, thereby improving the structural strength of the first protrusion 221. Of course, depending on the strength requirements, it is also possible to choose whether to install an extension plate 24 on the clamping arm B 2B.

[0052] According to one embodiment of the present invention, the clamping arm 2 has a plurality of support plates 25 arranged along the length direction of the protrusion in the first hollow 211 and the second hollow 212. The support plates 25 have through holes, and the through holes of the plurality of support plates 25 are connected to form a connecting channel to facilitate the passage of the tensioning device 3.

[0053] in other words, Figure 4 As shown, multiple support plates 25 are arranged along the length of the protrusion, and the through holes of the multiple support plates 25 are connected to form a connecting channel for the tensioning device 3 to pass through. Figure 1 As shown, both the first cutout 211 and the second cutout 212 of clamping arm A 2A have connecting channels. A tensioning device 3, connecting a pair of opposing clamping arms B 2B, passes through these connecting channels to provide clamping force to the opposing clamping arms B 2B. Similarly, both the first cutout 211 and the second cutout 212 of clamping arm B 2B have connecting channels. A tensioning device 3, connecting a pair of opposing clamping arms A 2A, passes through these connecting channels to provide clamping force to the opposing clamping arms A 2A. By providing connecting channels that allow the tensioning device 3 to pass through, clamping arms A 2A, clamping arms B 2B, and the tensioning device 3 are assembled together and interconnected, preventing individual components from falling from heights and causing safety accidents during assembly and use.

[0054] According to one embodiment of the present invention, the inner plate 23 is disposed on the side of the protrusion close to the polygonal pier, and the inner plate 23 contacts the polygonal pier 1 through the friction member 26.

[0055] In other words, such as Figure 4 , Figure 5 , Figure 6As shown, the inner plate 23 is fixed to the polygonal pier by friction member 26. The friction member 26, which is close to the polygonal pier, has an improved friction coefficient through material and shape design, which can increase the friction between the clamp and the pier.

[0056] According to one embodiment of the present invention, the longitudinal height of the hollow 21 is greater than the longitudinal height of the protrusion 22.

[0057] To facilitate the quick placement of the protrusion 22 within the cutout 21, the vertical height of the cutout 21 is set to be greater than the vertical height of the protrusion 22.

[0058] According to one embodiment of the present invention, the polygonal pier 1 is quadrilateral, and the number of clamping arms 2 is 4.

[0059] Furthermore, each protrusion has eight fixing holes 220, which are arranged at both ends of the protrusion.

[0060] In other words, such as Figure 1 , Figure 2 As shown, taking a quadrilateral pier as an example, the corresponding clamping arms 2 of a tension-type polygonal clamping device are four in number. Clamping arms A2A form one group, respectively set on one opposite face of the quadrilateral pier, and clamping arms B2B form another group, respectively set on the other opposite face of the quadrilateral pier. Both groups of clamping arms are fixed by a tensioning device 3. The number of fixing holes 220 for each protrusion can be selected according to the design strength requirements. In this embodiment, eight holes are preferred, with four holes arranged in a group at both ends of the protrusion.

[0061] In some specific embodiments of this utility model, the tensioning device 3 includes a screw 31 and a bolt 32. The screw 31 passes through the fixing hole 220 or the connecting channel, and the two ends of the screw 31 are fixed to the clamping arm 2 by the bolt 32.

[0062] In other words, the tensioning device 3 preferably consists of a screw 31 and bolts 32. The screw 31 passes through the fixing hole 220 or the connecting channel, and the clamping arm 2 is fixed at both ends by bolts 32. It is inexpensive and convenient to use.

[0063] Furthermore, a reinforcing plate 27 is provided near the fixing hole 220.

[0064] In other words, such as Figure 4 As shown, a reinforcing plate 27 is provided at the position where the fixing hole 220 of the clamping arm 2 is connected to the bolt 32. This can prevent local deformation at the protruding stress point, improve the stress strength of the clamping arm, and increase its service life.

[0065] The beneficial effects of this utility model are as follows: By setting clamping arms 2 on each face of the polygonal pier 1, and utilizing the interlacing of the hollows 21 and protrusions 22 between adjacent clamping arms 2 to enclose the polygonal pier 1, the fit between the clamping arm 2 and the polygonal pier 1 is increased, and the friction force is made more uniform. By passing the tensioning device 3 through the fixing holes 220 of the corresponding protrusions 22 in the two oppositely arranged clamping arms 2, a force is applied to the two clamping arms 2. The force between multiple tensioning devices 3 and multiple protrusions 22 forms a multi-point, layered clamping force, which makes the polygonal pier 1 uniformly stressed, reduces stress concentration, and avoids damage to the appearance of the polygonal pier 1 due to local stress.

[0066] Of course, those skilled in the art can understand and implement other structures and working principles of the pull-type polygonal clamp device, and will not be described in detail in this utility model.

[0067] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tension-type polygonal clamp device, fixed to a polygonal pier (1), characterized in that, include: Clamping arm (2), tensioning device (3); the clamping arm (2) is provided with a hollow (21) and a protrusion (22) for nesting with each other, and multiple clamping arms (2) are arranged on each face of the polygonal pier (1). The polygonal pier (1) is surrounded by the hollow (21) and the protrusion (22) of two adjacent clamping arms (2) through the interlacing of the hollow (21) and the protrusion (22); the two ends of the protrusion (22) are provided with fixing holes (220); The tensioning device (3) passes through the fixing hole (220) of the corresponding protrusion (22) in the two oppositely arranged clamping arms (2) and applies force to the two clamping arms (2) it clamps. A multi-point, layered clamping force is formed between the multiple tensioning devices (3) and the multiple protrusions (22).

2. The tension-type polygonal clamp device according to claim 1, characterized in that, The protrusions (22) of the clamping arm (2) are, from top to bottom, a first protrusion (221), a second protrusion (222) and a third protrusion (223) extending in the horizontal direction. The gaps between two adjacent protrusions form a first hollow (211) and a second hollow (212) that can accommodate the protrusions from top to bottom. The protrusions are fixed together by an inner plate (23). The two clamping arms (2) arranged opposite to each other are kept in the same plane. Among the two clamping arms (2) arranged adjacent to each other, the first protrusion (221) and the second protrusion (222) of one clamping arm are respectively accommodated in the first hollow (211) and the second hollow (212) of the other clamping arm.

3. The tension-type polygonal clamp device according to claim 2, characterized in that, The clamping arm (2) is divided into clamping arm A (2A) and clamping arm B (2B). The first protrusion (221) of the clamping arm B (2B) is accommodated in the first hollow (211) of the clamping arm A (2A), and the second protrusion (222) of the clamping arm B (2B) is accommodated in the second hollow (212) of the clamping arm A (2A). An extension plate (24) is provided on the side of the clamping arm A (2A) away from the polygonal pier, and the extension plate (24) connects the first protrusion (221) and the second protrusion (222).

4. The tension-type polygonal clamp device according to claim 3, characterized in that, The clamping arm (2) has a plurality of support plates (25) arranged along the length direction of the protrusion in the first hollow (211) and the second hollow (212). The support plates (25) have through holes, and the through holes of the plurality of support plates (25) are connected to form a connecting channel to facilitate the passage of the tensioning device (3).

5. A pull-type polygonal clamp device according to claim 4, characterized in that, The inner plate (23) is disposed on the side of the protrusion close to the polygonal pier, and the inner plate (23) contacts the polygonal pier (1) through a friction element (26).

6. A pull-type polygonal clamp device according to claim 5, characterized in that, The vertical height of the cutout (21) is greater than the vertical height of the protrusion (22).

7. A pull-type polygonal clamp device according to claim 6, characterized in that, The polygonal pier (1) is quadrilateral, and the number of clamping arms (2) is 4.

8. A pull-type polygonal clamp device according to claim 7, characterized in that, Each of the protrusions has eight fixing holes (220), which are arranged at both ends of the protrusion.

9. A pull-type polygonal clamp device according to claim 4, characterized in that, The tensioning device (3) includes a screw (31) and a bolt (32). The screw (31) passes through the fixing hole (220) or the communicating channel, and the two ends of the screw (31) are fixed to the clamping arm (2) by the bolt (32).

10. A pull-type polygonal clamp device according to claim 1, characterized in that, A reinforcing plate (27) is provided near the fixing hole (220).

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