Straddle type drilling device for slag blocking wall
By designing a chassis frame with traveling pulleys at the top of the retaining wall and a drilling device with movable joints connecting the inner and outer support legs, the problems of high efficiency and low labor intensity in opening holes at the top of the retaining wall were solved, improving construction efficiency and reducing operational difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGSHUI YUTIEXIN ENVIRONMENTAL PROTECTION ENG CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, drilling holes at the top of retaining walls requires manual operation, which is labor-intensive, has low construction efficiency, and the drilling equipment is inconvenient to operate.
Design a chassis frame that includes a walking pulley, connects the inner and outer support legs through movable joints, clamps the inner and outer walls of the retaining wall, and installs a drilling machine on the chassis frame, with the drill rod passing through the gaps in the chassis frame to perform continuous drilling.
It achieves low labor intensity in mobile construction, high drilling efficiency, compact structure, convenient use, and economic durability.
Smart Images

Figure CN224170144U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drilling construction technology, specifically relating to a straddle-type drilling device for retaining walls. Background Technology
[0002] Noise barriers are important facilities for preventing noise pollution along railway lines. The installation structure of a noise barrier generally includes unit panels and steel columns. Among them, H-beams are often used for the steel columns, and the unit panels are inserted into the web of the H-beam columns. H-beams are low in cost, have strong bending resistance, and are lightweight, and have been widely used in rail transit.
[0003] When installing H-beam steel columns, it is necessary to coordinate with a retaining wall. This involves drilling holes in the top of the retaining wall and placing the H-beam steel columns into the positioning holes. Currently, drilling holes in the top of the retaining wall is mostly done manually, which involves a large number of holes and high labor intensity. Furthermore, due to the limited width of the retaining wall, operating the drilling machine is very inconvenient. Drilling holes along the retaining wall requires the constant operation of drilling auxiliary equipment (drilling lubricant container, battery pack, motor, etc.), resulting in very low construction efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a straddle-type drilling device that continuously drills holes on the top of a retaining wall using a traveling pulley, which features low labor intensity and high drilling efficiency during mobile construction.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A straddle-type drilling device for a retaining wall is characterized by: a chassis frame equipped with traveling pulleys; inner and outer support legs connected by movable joints on both sides of the chassis frame, allowing them to fold with the chassis frame; a limiting mechanism on the movable joints, allowing the inner and outer support legs to clamp the inner and outer wall surfaces of the retaining wall after being vertically extended; the lower ends of the inner and outer support legs sliding along the inner and outer wall surfaces via support rollers; a drilling machine mounted on the chassis frame, with the drill rod of the drilling machine passing through the gaps in the chassis frame to drill holes in the top surface of the retaining wall.
[0007] Additional technical features of the straddle-type drilling device constituting the above-mentioned retaining wall also include:
[0008] —The movable joint includes a U-shaped support, the bottom of which is connected to the chassis frame. The end of the inner or outer support leg is placed inside the U-shaped support and is rotatably connected by a positioning pin in a first through hole. The limiting mechanism includes at least two sets of second through holes on both sides of the U-shaped support and corresponding to the ends of the inner or outer support legs. The inner or outer support leg is positioned at different rotational positions by inserting or removing the limiting pin in the second through hole.
[0009] —The inner and outer support legs are both made of retractable square tube assemblies. The square tube assembly is formed by fitting an outer tube and an inner tube together. The inner tube is connected to a drive motor. Several pin holes are provided on the outer and inner tubes. Positioning pins are inserted into the pin holes to realize the adjustment of the retractable length of the square tube assembly.
[0010] —The number of inner support legs is two, and their ends are connected to the side of the shelf via a first hinge;
[0011] The movable joint of the outer outrigger is located below the chassis frame, and the movable joint of the inner outrigger is located above the chassis frame. The upper end of the inner outrigger is connected to a folding short tube via a second hinge, and the other end of the folding short tube is connected to the movable joint of the inner outrigger.
[0012] Compared with the prior art, the straddle-type drilling device for retaining walls provided by this utility model has the following advantages: The chassis frame of the device is equipped with traveling pulleys, and the inner and outer support legs are connected to both sides of the chassis frame through movable joints, allowing them to fold with the chassis frame. The movable joints are equipped with limiting mechanisms, so that the inner and outer support legs can be vertically extended and clamp the inner and outer wall surfaces of the retaining wall, i.e., the whole device straddles the top of the retaining wall. A drilling machine is installed on the chassis frame, and the drill rod of the drilling machine passes through the gap of the chassis frame to drill holes in the top surface of the retaining wall. Since the lower ends of the inner and outer support legs slide along the inner and outer wall surfaces through the support rollers, continuous drilling operations along the retaining wall are realized, which improves construction efficiency, reduces labor intensity, and the foldable structure facilitates transportation. It has the advantages of compact structure, convenient use, economy and durability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the straddle-type drilling device for a slag retaining wall according to the present invention.
[0014] Figure 2 This is a top view of the device.
[0015] Figure 3 A schematic diagram of the drilling construction for the device straddling the slag retaining wall. Detailed Implementation
[0016] The structure and working principle of the novel straddle-type drilling device provided by this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] In the description of this utility model, unless otherwise stated, the terms "inner / outer", "upper / lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.
[0018] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "set / equipped" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] like Figure 1-3 As shown, the straddle-type drilling device structure of the slag retaining wall includes a chassis frame 2 with a traveling pulley 1. The two sides of the chassis frame 2 are respectively provided with an inner support leg 41 and an outer support leg 42 connected by a movable joint 301, so that the two can be folded with the chassis frame 2. The movable joint 301 is provided with a limiting mechanism 302, so that the inner support leg 41 and the outer support leg 42 are vertically opened and clamp the inner and outer wall surfaces of the slag retaining wall a. The lower ends of the inner support leg 41 and the outer support leg 42 slide along the inner and outer wall surfaces through the support roller 40. A drilling machine 5 is installed on the chassis frame 2. The drill rod 51 of the drilling machine 5 passes through the gap of the chassis frame 2 and drills a hole in the top surface of the slag retaining wall a.
[0020] Its working principle is as follows: The chassis frame 2 of the device is placed on the top of the slag retaining wall a. The inner support legs 41 and outer support legs 42 on both sides of the chassis frame 2 are connected by a movable joint 301. The movable joint 301 is equipped with a limiting mechanism 302, so that the inner support legs 41 and outer support legs 42 can be folded or vertically opened to clamp the inner and outer wall surfaces of the slag retaining wall a, thus straddling the slag retaining wall a. A drilling machine 5 is installed on the chassis frame 2. The drill rod 51 of the drilling machine 5 passes through the gap of the chassis frame 2 and drills holes in the top surface of the slag retaining wall a. Since the lower ends of the inner support legs 41 and outer support legs 42 slide along the inner and outer wall surfaces through the support rollers 40, continuous drilling operations can be carried out along the slag retaining wall a.
[0021] It should be noted that the walking pulley 1 at the bottom of the chassis frame 2 can be driven by a motor, or a push-pull handle 20 can be installed at one end of the chassis frame 2 so that the walking pulley 1 can be moved manually.
[0022] In the straddle-type drilling device structure that constitutes the aforementioned slag retaining wall
[0023] --like Figure 2As shown, the above-mentioned movable joint 301 includes a U-shaped support 31. The bottom of the U-shaped support 31 is connected to the chassis frame 2. The ends of the inner support leg 41 or the outer support leg 42 are placed inside the U-shaped support 31 and are rotatably connected by a positioning pin 33 in the first through hole 32. That is, the ends of the inner support leg 41 and the outer support leg 42 are provided with a through hole 32 on the side wall of the U-shaped support 31. After the positioning pin 33 is inserted into the first through hole 32, it becomes a pivot point for rotation, realizing relative rotation, so that the inner support leg 41 and the outer support leg 42 can be folded with the chassis frame 2.
[0024] The limiting mechanism 302 includes at least two sets of second through holes 34 disposed on both sides of the U-shaped support 31 and corresponding to the ends of the inner support leg 41 or the outer support leg 42. The inner support leg 41 or the outer support leg 42 can be positioned at different rotation positions by inserting and removing the limiting pin 35 in the second through holes 34. After the limiting pin 35 is inserted into the second through holes 34 at different positions, the inner support leg 41 or the outer support leg 42 rotated to that position can be positioned, such as in a horizontally folded or vertically open state.
[0025] — Preferably, the inner support leg 41 and the outer support leg 42 are both made of telescopic square tube assembly. The square tube assembly is formed by fitting an outer tube and an inner tube together to achieve mutual telescopic extension and length adjustment. The inner tube is connected to a drive motor (requiring a transmission guide rail) or directly connected to a cylinder, which can automatically extend and retract. Several pin holes 43 are provided on the outer tube and the inner tube. Positioning pins 44 are inserted into the pin holes 43 to realize the telescopic length positioning of the square tube assembly. The length of the support leg is adjustable to adapt to the construction requirements of retaining walls of different heights.
[0026] —Furthermore, there are two inner support legs 41, the ends of which are connected to the side of the shelf 62 via the first hinge 61. That is, the two support legs located inside the slag retaining wall a are connected to the shelf 62 to form a platform for placing drilling auxiliary equipment 63, such as lubricating fluid container, motor, battery pack, etc., which facilitates overall movement and enables continuous drilling.
[0027] — Preferably, the movable joint 301 of the outer support leg 42 is located below the chassis frame 2, that is, the outer support leg 42 is folded to the bottom of the chassis frame 2, and the movable joint 301 of the inner support leg 41 is located above the chassis frame 2, that is, the inner support leg 41 is folded to the top surface of the chassis frame 2. In order to lay the shelf 62 connected to the inner support leg 41 flat, the upper end of the inner support leg 41 is connected to the folding short tube 72 through the second hinge 71, and the other end of the folding short tube 72 is connected to the movable joint 301 of the inner support leg 41. That is, the folding short tube 72 rotates in the movable joint 301 to realize the folding of the inner support leg 41, and then the shelf 62 is flipped through the second hinge 71 to realize the shelf 62 is placed facing upward.
[0028] The above-described embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the implementation of this utility model. Therefore, any other modifications or equivalent substitutions to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A riding wall drilling apparatus for a slag wall, characterized by: The system includes a chassis frame with walking pulleys. On both sides of the chassis frame are inner and outer support legs connected by movable joints, allowing them to fold with the chassis frame. The movable joints are equipped with limiting mechanisms, which allow the inner and outer support legs to clamp the inner and outer walls of the retaining wall after being vertically extended. The lower ends of the inner and outer support legs slide along the inner and outer walls via support rollers. A drilling machine is installed on the chassis frame, and the drill rod of the drilling machine passes through the gaps in the chassis frame to drill holes in the top surface of the retaining wall.
2. The straddle-type drilling device for a retaining wall according to claim 1, characterized in that: The movable joint includes a U-shaped support, the bottom of which is connected to the chassis frame. The end of the inner or outer support leg is placed inside the U-shaped support and is rotatably connected by a positioning pin in a first through hole. The limiting mechanism includes at least two sets of second through holes located on both sides of the U-shaped support and corresponding to the ends of the inner or outer support leg. The inner or outer support leg is positioned at different rotational positions by inserting or removing the limiting pin in the second through hole.
3. The straddle-type drilling device for a retaining wall according to claim 1, characterized in that: Both the inner and outer support legs are made of retractable square tube assemblies. The square tube assembly is formed by fitting an outer tube and an inner tube together. The inner tube is connected to a drive motor. Several pin holes are provided on the outer and inner tubes. Positioning pins are inserted into the pin holes to adjust the retractable length of the square tube assembly.
4. The straddle-type drilling device for a retaining wall according to claim 1, characterized in that: The number of inner support legs is two, and their ends are connected to the side of the shelf via a first hinge.
5. The straddle-type drilling device for a retaining wall according to claim 4, characterized in that: The movable joint of the outer outrigger is located below the chassis frame, and the movable joint of the inner outrigger is located above the chassis frame. The upper end of the inner outrigger is connected to a folding short tube via a second hinge, and the other end of the folding short tube is connected to the movable joint of the inner outrigger.