A top punch support

Abstract

The utility model discloses a top punch support, include: base, the bottom of lower support post is installed in base, has first lifting groove, the bottom of upper support post can be slidably installed in first lifting groove, first pulley is installed in first lifting groove, second pulley is installed in first lifting groove, and is with first pulley interval preset distance, the first end of hoisting rope is fixedly connected with the bottom of upper support post, and the second end of hoisting rope extends upwards in first lifting groove, and after the second end of hoisting rope extends to the outside of lower support post after crossing first pulley, crosses lower support post, the second end of hoisting rope can control upper support post between the rising state and the falling state each other switching relative to lower support post, the second end of hoisting rope moves just can control upper support post and rise and fall in the first lifting groove of lower support post through pulling, make lower support post can keep higher structural strength.

Description

Technical Field

[0001] This utility model relates to the field of construction, and more specifically to a top-drilled bracket. Background Technology

[0002] In the construction industry, top-mounted drilling brackets are widely used. The top of these brackets is suitable for installing drilling equipment, utilizing their height and lifting capabilities to perform drilling operations on the ceiling under mechanical drive. Traditional drilling brackets typically achieve drilling by using mechanical pressure to propel them upwards. The performance of top-mounted drilling brackets is primarily evaluated based on their stability, safety, and ease of operation. Different top-mounting and power supply methods have varying impacts on these aspects, making appropriate bracket design crucial for improving their performance.

[0003] Chinese utility model patent CN220864391U discloses a movable adjustable top plate perforated bracket. A connecting rod extending to the outside of a fixed square tube is provided on one side of a square sliding rod. A steel wire rope attached to the outside of the fixed square tube pulls the connecting rod, causing the square sliding rod to slide within a long groove relative to the fixed square tube. This patent requires creating a long groove in the fixed square tube, which significantly reduces the structural strength of the tube. Furthermore, in this patent, the pull handle cannot be fixed when the square sliding rod is raised to the top, making operation very inconvenient.

[0004] Chinese utility model patent CN220179791U discloses a high-altitude drilling support device. The upper support has a rotating shaft at its bottom, and the lower support has a lifting cavity on its side, with the rotating shaft slidably mounted in the lifting cavity. This patent requires a relatively long lifting cavity along the length of the lower support, which significantly compromises the structural strength of the lower support. Furthermore, the patent uses a combination of buckles and springs to lock the gear shaft, requiring the operator to constantly pull the opening to disengage from the teeth on the gear shaft before it can be rotated, making operation extremely inconvenient. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide a top-drilled bracket, in which the first pulley and the second pulley are both located in the first lifting groove of the lower support rod. By pulling the second end of the lifting rope relative to the lower support rod, the upper support rod can be controlled to rise and fall within the first lifting groove of the lower support rod, thereby enabling the lower support rod to maintain high structural strength.

[0006] To achieve the above objectives, the present invention aims to provide a top-drilled bracket, comprising:

[0007] Base;

[0008] The lower support rod has its bottom mounted on the base and its top having a first lifting groove.

[0009] An upper support rod, the bottom of which is slidably installed in the first lifting groove;

[0010] The first pulley is installed in the first lifting groove;

[0011] The second pulley is installed in the first lifting groove and is spaced at a preset distance from the first pulley;

[0012] The lifting rope has its first end fixedly connected to the bottom of the upper support rod, and its second end extends upward in the first lifting groove, passes over the second pulley, then turns back towards the first pulley, passes over the first pulley, passes through the lower support rod, and extends to the outside of the lower support rod.

[0013] The upper support rod can be switched between a raised state and a lowered state by pulling the second end of the lifting rope relative to the lower support rod. In the raised state, the bottom of the upper support rod is close to the second pulley, and in the lowered state, the bottom of the upper support rod is close to the first pulley.

[0014] In some embodiments, the top perforated bracket further includes a pull rod and a third pulley, the bottom end of the pull rod being rotatably mounted on the outside of the lower support rod, and the third pulley being mounted on the outside of the lower support rod;

[0015] The second end of the lifting rope passes over the third pulley and is then fixedly connected to the top of the pull rod;

[0016] Rotating the lever can cause the lifting rope to move relative to the lower support rod, thereby controlling the upper support rod to switch between the raised state and the lowered state.

[0017] In some embodiments, the top perforated bracket further includes a take-up reel rotatably mounted on the top of the pull rod, the second end of the lifting rope being mounted on the take-up reel, and rotating the take-up reel winding the lifting rope.

[0018] In some embodiments, the top perforated bracket further includes a rotating handle, which includes a rotating shaft and a gripping rod. The rotating shaft is connected to the side of the take-up reel, and the gripping rod is connected to the end of the rotating shaft away from the take-up reel. Rotating the rotating handle can drive the take-up reel to rotate.

[0019] In some embodiments, the top-drilled bracket further includes a locking mechanism, which includes a locking wheel, a first locking plate, a second locking plate, and a toggle plate. The locking wheel is mounted on the rotating shaft, the bottom of the first locking plate is rotatably mounted on the side of the pull rod, and the top of the first locking plate abuts against the locking wheel.

[0020] The bottom of the second locking piece is rotatably mounted on the side of the pull rod, and the top of the second locking piece abuts against the locking wheel;

[0021] The actuating piece is rotatably mounted on the side of the pull rod and is disposed between the first locking piece and the second locking piece;

[0022] In the first state, the actuating piece is located in the middle between the first locking piece and the second locking piece, with the top of both the first locking piece and the top of the second locking piece abutting against the locking wheel;

[0023] In the second state, rotating the actuating piece pushes the first locking piece to rotate away from the locking wheel, so that the top of the first locking piece separates from the locking wheel, and the locking wheel can rotate in the first direction;

[0024] In the third state, rotating the actuating piece pushes the second locking piece to rotate away from the locking wheel, causing the top of the second locking piece to separate from the locking wheel, and the locking wheel to rotate in the second direction.

[0025] In some embodiments, the actuating piece has a narrow end and a wide end, the narrow end being rotatably mounted to the side of the lever, and the surface of the wide end away from the narrow end being an arcuate surface.

[0026] In some embodiments, the outer surface of the locking wheel has a circumferentially arranged locking groove, and the tops of the first locking piece and the second locking piece are adapted to abut against the locking groove.

[0027] In some embodiments, the pull rod has a pull rod cavity, and the top perforated bracket further includes an external wire installed in the pull rod cavity; the external wire is installed in the pull rod cavity; the top perforated bracket further includes a socket installed at the bottom of the pull rod, and the socket is electrically connected to the external wire.

[0028] In some embodiments, the top of the upper support rod has an outwardly extending mounting rod that forms a mounting position suitable for mounting a drilling device.

[0029] In some embodiments, the top of the lower support rod has an outwardly extending grip handle. Attached Figure Description

[0030] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0031] Figure 1 This is a three-dimensional structural diagram of the top-drilled bracket according to a preferred embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the connection between the upper support rod and the lower support rod of the top-drilled bracket in a preferred embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of the rope winding wheel and rotating handle of the top perforated bracket of the present invention in a preferred embodiment;

[0034] Figure 4 This is a schematic diagram of the locking mechanism of the top-drilled bracket in the first state according to a preferred embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the locking mechanism of the top-drilled bracket in the second state according to a preferred embodiment of the present invention.

[0036] Figure 6 This is a schematic diagram of the locking mechanism of the top-drilled bracket in the third state, which is a preferred embodiment of the present invention. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0038] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0039] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

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

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] refer to Figures 1 to 6 This application provides a top-drilled bracket 100, which includes a base 10, a lower support rod 20, an upper support rod 30, a first pulley 40, a second pulley 50, and a lifting rope 60. The bottom of the lower support rod 20 is mounted on the base 10, and the top of the lower support rod 20 has a first lifting groove 21. The bottom of the upper support rod 30 is slidably mounted in the first lifting groove 21. The first pulley 40 and the second pulley 50 are both mounted in the first lifting groove 21, and the first pulley 40 and the second pulley 50 are set at a preset distance from each other. Preferably, the first pulley 40 is located below the second pulley 50. The first end 61 of the lifting rope 60 is fixedly connected to the bottom of the upper support rod 30, and the second end 62 of the lifting rope 60 extends upward in the first lifting groove 21, passes over the second pulley 50, then turns back towards the first pulley 40, passes over the first pulley 40, and extends through the lower support rod 20 to the outside of the lower support rod 20. It should be noted that in this application, "crossing over" can also be described as "winding around," that is, the second end 62 of the lifting rope 60 extends upward within the first lifting groove 21, winds around the second pulley 50, then folds back towards the first pulley 40, crosses the first pulley 40, passes through the lower support rod 20, and extends to the outside of the lower support rod 20. Pulling the second end 62 of the lifting rope relative to the lower support rod 20 can control the upper support rod 30 to switch between a raised state and a lowered state. In the raised state, the bottom of the upper support rod 30 is close to the second pulley 50; in the lowered state, the bottom of the upper support rod 30 is close to the first pulley 40.

[0043] In this application, both the first pulley 40 and the second pulley 50 are disposed in the first lifting groove 21 of the lower support rod 20. By pulling the second end 62 of the lifting rope 60 relative to the lower support rod 20, the upper support rod 30 can be controlled to rise and fall within the first lifting groove 21 of the lower support rod 20, so that the lower support rod 20 can maintain a high structural strength.

[0044] refer to Figure 1 Specifically, the base 10 includes multiple outwardly extending support arms 11, each of which has a roller 12 at its bottom, allowing for easy movement of the top perforated bracket 100. Preferably, there are three or more support arms 11. The bottom of the lower support rod 20 is preferably installed at the middle position of the base 10.

[0045] Specifically, the lower support rod 20 has a rope hole corresponding to the position of the first pulley 40 and communicating with the first lifting groove 21, and the second end 62 of the lifting rope 60 extends outward through the rope hole.

[0046] In one modified embodiment, the bottom of the upper support rod 30 has a second lifting groove, and the second pulley 50 is installed in the second lifting groove. In another modified embodiment, a fixing rod is provided at the bottom opening of the second lifting groove of the lower support rod 20, and the first end 61 of the lifting rope 60 is connected to the fixing rod, thereby enabling the lifting rope 60 to provide force to the upper support rod 30 more evenly and improving the stability of the lifting of the upper support rod 30.

[0047] refer to Figure 1 and Figure 2 Furthermore, the top perforated bracket 100 further includes a pull rod 71 and a third pulley 72. The bottom end of the pull rod 71 is rotatably mounted on the outside of the lower support rod 20, and the third pulley 72 is mounted on the outside of the lower support rod 20. The second end 62 of the lifting rope 60 passes over the third pulley 72 and is fixedly connected to the top end of the pull rod 71. Rotating the pull rod 71 can drive the lifting rope 60 to move relative to the lower support rod 20, thereby controlling the upper support rod 30 to switch between the raised state and the lowered state.

[0048] For example, when the top perforated bracket 100 is in the falling state, and the pull rod 71 is in a vertical state near the lower support rod 20, the second end 62 of the lifting rope 60 is near the third pulley 72; the pull rod 71 is rotated to move away from the lower support rod 20, so that the second end 62 of the lifting rope 60 moves away from the third pulley 72, pulling the upper support rod 30 to rise relative to the lower support rod 20 to the raised state.

[0049] The top perforated bracket 100 further includes two first lugs 22 spaced apart from each other at preset positions on the lower support rod 20, and the top end of the pull rod 71 is rotatably mounted on the two first lugs 22.

[0050] The top perforated bracket 100 further includes two second lugs 23 spaced apart from each other at a preset position on the lower support rod 20. The two second lugs 23 are positioned above the two first lugs 22. The lifting rope 60 passes between the two first lugs 22 and also passes between the two second lugs 23 and is wound around the third pulley 72.

[0051] refer to Figure 1 and Figure 3 The top perforated bracket 100 further includes a rope take-up wheel 73, which is rotatably mounted on the top of the pull rod 71. The second end 62 of the lifting rope 60 is mounted on the rope take-up wheel 73, and rotating the rope take-up wheel 73 can wind the lifting rope 60.

[0052] Specifically, the top perforated bracket 100 further includes two third lugs 711 installed at a predetermined position on the pull rod 71, and the rope take-up wheel 73 is rotatably mounted between the two third lugs 711. The outer surface of the rope take-up wheel 73 has a circumferentially arranged rope take-up groove 730, which is adapted to accommodate the lifting rope 60.

[0053] Furthermore, the top perforated bracket 100 further includes a rotating handle 74, which includes a rotating shaft 741 and a gripping rod 742. The rotating shaft 741 is connected to the side of the take-up reel 73, and the gripping rod 742 is connected to the end of the rotating shaft 741 away from the take-up reel 73. Rotating the rotating handle 74 can drive the take-up reel 73 to rotate. In some embodiments, the rotating handle 74 further includes a connecting rod 743 connecting the rotating shaft 741 and the gripping rod 742. The rotating shaft 741 is preferably coaxial with the take-up reel 73, the connecting rod 743 is arranged along a radial direction parallel to the take-up reel 73, and the gripping rod 742 is arranged parallel to the rotating shaft 741.

[0054] refer to Figure 1 , Figures 4 to 6 Furthermore, the top-drilled bracket 100 further includes a locking mechanism 75, which includes a locking wheel 751, a first locking piece 752, a second locking piece 753, and a toggle piece 754. The locking wheel 751 is mounted on the rotating shaft 741. The bottom of the first locking piece 752 is rotatably mounted on the side of the pull rod 71, and the top of the first locking piece 752 abuts against the locking wheel 751. The bottom of the second locking piece 753 is rotatably mounted on the side of the pull rod 71, and the top of the second locking piece 753 abuts against the locking wheel 751. The toggle piece 754 is rotatably mounted on the side of the pull rod 71 and is disposed between the first locking piece 752 and the second locking piece 753. (Reference) Figure 4 In the first state, the actuating piece 754 is positioned at the center between the first locking piece 752 and the second locking piece 753, with the tops of both the first locking piece 752 and the second locking piece 753 abutting against the locking wheel 751. (Reference) Figure 5 In the second state, rotating the actuating piece 754 pushes the first locking piece 752 to rotate away from the locking wheel 751, causing the top of the first locking piece 752 to separate from the locking wheel 751, allowing the locking wheel 751 to rotate in the first direction; Reference Figure 6 In the third state, rotating the actuating piece 754 pushes the second locking piece 753 to rotate away from the locking wheel 751, causing the top of the second locking piece 753 to separate from the locking wheel 751, allowing the locking wheel 751 to rotate in a second direction. The first direction and the second direction are opposite. For example, the first direction is counterclockwise, and the second direction is clockwise.

[0055] Furthermore, the actuating piece 754 has a narrow end 7541 and a wide end 7542. The narrow end 7541 is rotatably mounted on the side of the pull rod 71, and the surface of the wide end 7542 away from the narrow end 7541 is an arc-shaped surface, particularly an arc-shaped surface that is higher in the middle and lower at both ends. That is, the projection of the actuating piece 754 onto the side surface of the winding pulley 73 is approximately fan-shaped. Rotating the actuating piece 754 relative to the pull rod 71 can push the first locking piece 752 or the second locking piece 753 to move. For example, the distance between the wide end 7542 and the position where the narrow end 7541 is rotatably connected to the pull rod 71 is defined as a first distance, and the distance between the middle position of the wide end 7542 and the position where the narrow end 7541 is rotatably connected to the pull rod 71 is defined as a second distance, where the second distance is greater than the first distance.

[0056] For example, after rotating the pull rod 71 away from the lower support rod 20 to raise the upper support rod 30, rotating the rotary handle 74 drives the take-up wheel 73 to rotate, so that the lifting rope 60 can be wound around the take-up wheel 73. At the same time, the pull rod 71 gradually rotates towards the lower support rod 20, and the rotary handle 74 continues to rotate until the pull rod 71 moves to a vertical position close to the lower support rod 20. Rotating the toggle plate 754 switches the locking mechanism 75 to the first state to fix the lifting rope 60. When it is necessary to switch the top perforated bracket 100 to the falling state, rotating the toggle plate 754 switches the locking mechanism 75 to the second or third state, rotating the rotary handle 74 drives the take-up wheel 73 to rotate and release the lifting rope 60, so that the upper support rod 30 falls in the first lifting groove 21.

[0057] Further, the outer surface of the locking wheel 751 has a circumferentially arranged locking groove (not shown in the figure), and the tops of the first locking piece 752 and the second locking piece 753 are adapted to abut against the locking groove. For example, in the first state, the tops of the first locking piece 752 and the second locking piece 753 are each embedded in one of the locking grooves, and the locking wheel 751 cannot rotate in either the first or second direction. In the second state, the top of the first locking piece 752 leaves the locking groove, and the top of the second locking piece 753 abuts against the locking groove, allowing the locking wheel 751 to rotate in the first direction but not in the second direction. In the third state, the top of the second locking piece 753 leaves the locking groove, and the top of the first locking piece 752 abuts against the locking groove, allowing the locking wheel 751 to rotate in the second direction but not in the first direction.

[0058] refer to Figure 1 Furthermore, the pull rod 71 has a pull rod cavity 710, and the top perforated bracket 100 also includes an external wire 755 installed in the pull rod cavity 710; the top perforated bracket 100 also includes a socket 756 installed at the bottom of the pull rod 71, and the socket 756 is electrically connected to the external wire 755.

[0059] The top of the upper support rod 30 has an outwardly extending mounting rod 31, which forms a mounting position suitable for mounting a drilling device. The drilling device is adapted to be electrically connected to the socket 756 for electrical connection to the external power cable 755.

[0060] The top drilling bracket 100 further includes a switch 757 installed at the bottom of the pull rod 71. The switch 757 is electrically connected to the external wire 755 and is used to control the connection or disconnection of the electrical connection between the external wire 755 and the socket 756, thereby controlling the power supply and disconnection of the drilling device.

[0061] The top of the lower support rod 20 has an outwardly extending grip handle 24, which is convenient for the operator to hold, so as to improve the stability of the top punch bracket 100 during operation or change the position of the top punch bracket 100.

[0062] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A top-drilled bracket, characterized in that, include: Base; The lower support rod has its bottom mounted on the base and its top having a first lifting groove. An upper support rod, the bottom of which is slidably installed in the first lifting groove; The first pulley is installed in the first lifting groove; The second pulley is installed in the first lifting groove and is spaced at a preset distance from the first pulley; The lifting rope has its first end fixedly connected to the bottom of the upper support rod, and its second end extends upward in the first lifting groove, passes over the second pulley, then turns back towards the first pulley, passes over the first pulley, passes through the lower support rod, and extends to the outside of the lower support rod. The upper support rod can be switched between a raised state and a lowered state by pulling the second end of the lifting rope relative to the lower support rod. In the raised state, the bottom of the upper support rod is close to the second pulley, and in the lowered state, the bottom of the upper support rod is close to the first pulley.

2. The top-drilled bracket according to claim 1, characterized in that, The top perforated bracket further includes a pull rod and a third pulley, the bottom end of the pull rod being rotatably mounted on the outside of the lower support rod, and the third pulley being mounted on the outside of the lower support rod; The second end of the lifting rope passes over the third pulley and is then fixedly connected to the top of the pull rod; Rotating the lever can cause the lifting rope to move relative to the lower support rod, thereby controlling the upper support rod to switch between the raised state and the lowered state.

3. The top-drilled bracket according to claim 2, characterized in that, The top perforated bracket further includes a rope take-up wheel, which is rotatably mounted on the top of the pull rod. The second end of the lifting rope is mounted on the rope take-up wheel, and rotating the rope take-up wheel can wind the lifting rope.

4. The top-drilled bracket according to claim 3, characterized in that, The top perforated bracket further includes a rotating handle, which includes a rotating shaft and a gripping rod. The rotating shaft is connected to the side of the take-up reel, and the gripping rod is connected to the end of the rotating shaft away from the take-up reel. Rotating the rotating handle can drive the take-up reel to rotate.

5. The top-drilled bracket according to claim 4, characterized in that, The top-drilled bracket further includes a locking mechanism, which includes a locking wheel, a first locking piece, a second locking piece, and a toggle piece. The locking wheel is mounted on the rotating shaft, the bottom of the first locking piece is rotatably mounted on the side of the pull rod, and the top of the first locking piece abuts against the locking wheel. The bottom of the second locking piece is rotatably mounted on the side of the pull rod, and the top of the second locking piece abuts against the locking wheel; The actuating piece is rotatably mounted on the side of the pull rod and is disposed between the first locking piece and the second locking piece; In the first state, the actuating piece is located in the middle between the first locking piece and the second locking piece, with the top of both the first locking piece and the top of the second locking piece abutting against the locking wheel; In the second state, rotating the actuating piece pushes the first locking piece to rotate away from the locking wheel, so that the top of the first locking piece separates from the locking wheel, and the locking wheel can rotate in the first direction; In the third state, rotating the actuating piece pushes the second locking piece to rotate away from the locking wheel, causing the top of the second locking piece to separate from the locking wheel, and the locking wheel to rotate in the second direction.

6. The top-drilled bracket according to claim 5, characterized in that, The actuating piece has a narrow end and a wide end, the narrow end being rotatably mounted on the side of the pull rod, and the surface of the wide end away from the narrow end being an arc-shaped surface.

7. The top-drilled bracket according to claim 5, characterized in that, The outer surface of the locking wheel has a circumferentially arranged locking groove, and the tops of the first locking piece and the second locking piece are adapted to abut against the locking groove.

8. The top-drilled bracket according to claim 2, characterized in that, The pull rod has a pull rod cavity, and the top perforated bracket also includes an external wire installed in the pull rod cavity; the external wire is installed in the pull rod cavity; the top perforated bracket also includes a socket installed at the bottom of the pull rod, and the socket is electrically connected to the external wire.

9. The top-drilled bracket according to any one of claims 1 to 8, characterized in that, The top of the upper support rod has an outwardly extending mounting rod that forms a mounting position suitable for mounting a drilling device.

10. The top-drilled bracket according to claim 9, characterized in that, The top of the lower support rod has an outwardly extending grip handle.

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