Box girder sealing anchor hammering and pushing assembly
By designing a box girder anchoring hammer-pushing assembly, and utilizing a combination of bearing shaft, fan ring, and hammer-pushing components, the concrete is gradually sealed in the anchor hole. This solves the problems of high labor intensity, low efficiency, and insufficient compaction in existing technologies, and improves the sealing effect and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 西安远景智能装备有限公司
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
The existing technology for sealing and anchoring precast box girders for railways is labor-intensive, inefficient, and poses safety hazards. Furthermore, the concrete becomes hollow and not sufficiently compacted after sealing and anchoring.
Design a box girder anchoring hammer pusher assembly, including a bearing shaft, a fan ring, and a hammer pusher. The hammer pusher is driven to move axially along the fan ring by a telescopic component, and concrete is gradually pushed into the anchor hole to achieve sealing.
It improves the compaction of concrete used to seal anchor holes, reduces labor intensity and safety hazards, and increases sealing efficiency.
Smart Images

Figure CN224227635U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of box girder anchoring technology, and in particular relates to a box girder anchoring hammer pusher assembly. Background Technology
[0002] The sealing of precast box girders for railways is traditionally done manually, which is labor-intensive, inefficient, and poses safety hazards due to working at heights. An anchoring screw conveyor has been developed to deliver concrete to the anchor holes for sealing. However, the concrete delivered by this screw conveyor can cause voids in the concrete within the anchor holes after sealing, resulting in insufficient compaction.
[0003] Therefore, there is a need for a well-designed box girder anchor sealing hammer pusher assembly. This assembly uses a hammer pusher to push the concrete entering the front end of the hammer pusher into the anchor hole to gradually achieve sealing, thereby improving the compaction of the concrete sealing the anchor hole. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a box girder anchor sealing hammer push assembly in view of the shortcomings of the prior art. The assembly is reasonably designed and uses a hammer pusher to push the concrete entering the front end of the hammer pusher into the anchor hole to gradually achieve sealing, thereby improving the compaction of the concrete sealing the anchor hole.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a box girder sealing anchor hammer push assembly, characterized in that: it includes a bearing shaft, two fan rings symmetrically arranged on the outer side wall of one end of the bearing shaft, two hammer pushers symmetrically arranged between the two fan rings, and a telescopic member arranged on the bearing shaft and capable of driving the hammer pushers to move axially along the fan rings.
[0006] The above-mentioned box girder sealing and anchoring hammer push assembly is characterized in that: a circular disc is provided on the bearing shaft, the fixed part of the telescopic member is installed on the circular disc, and the telescopic part of the telescopic member passes through the circular disc and connects to the inner side wall of the hammer push member.
[0007] The above-mentioned box girder sealing and anchoring hammer push assembly is characterized in that: a second annular disk is provided on the bearing shaft, the end of the hammer pusher near the second annular disk is set as an opening, the interior of the hammer pusher is hollow, and the telescopic part of the telescopic member passes through the first annular disk and the second annular disk and connects to the inner sidewall of the hammer pusher.
[0008] The above-mentioned box girder sealing and anchoring hammer push assembly is characterized in that: a guide cylinder is provided on the first annular disk for the telescopic part of the telescopic component to pass through, the guide cylinder passes through the second annular disk and extends into the hammer push assembly, and the telescopic part of the telescopic component passes through the guide cylinder and extends into the interior of the hammer push assembly, and is connected to the inner side wall of the hammer push assembly.
[0009] The above-mentioned box girder sealing and anchoring hammer pusher assembly is characterized in that: the thickness of the hammer pusher along the bearing axis is less than the thickness of the fan ring along the bearing axis.
[0010] The above-mentioned box girder sealing and anchoring hammer push assembly is characterized in that: the bearing shaft includes a first section shaft, a second section shaft and a third section shaft connected in sequence, the first annular disk is located at the connection between the second section shaft and the third section shaft, the second annular disk is located on the third section shaft, the fan ring is fixed on the outer side wall of the third section shaft, one end of the fan ring is fixedly connected to the second annular disk, and a gap is provided between the first annular disk and the second annular disk.
[0011] This utility model has the following advantages compared with the prior art:
[0012] 1. The present invention is designed with two fan-shaped rings forming two gap grooves so that the two hammer pushers can be placed in the two gap grooves and can move axially in the gap grooves, and can easily hold concrete.
[0013] 2. The present invention is designed with a hammer pusher so that when the telescopic component retracts the hammer pusher, there is a gap at the front end of the hammer pusher, which allows concrete to enter the gap. Then, the telescopic component extends the hammer pusher, which pushes the concrete in the gap into the anchor hole, thus gradually sealing it.
[0014] In summary, this utility model is reasonably designed. By using a hammer pusher to push the concrete at the front end of the hammer pusher into the anchor hole, the concrete is gradually sealed, thereby improving the compaction of the concrete sealing the anchor hole.
[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the structure of this utility model without the hammer pusher.
[0018] Explanation of reference numerals in the attached figures:
[0019] Detailed Implementation
[0020] like Figures 1 to 2 As shown, the present invention provides a box girder sealing and anchoring hammer push assembly, including a bearing shaft 1, two fan rings 4 symmetrically arranged on the outer side wall of one end of the bearing shaft 1, two hammer pushers 6 symmetrically arranged between the two fan rings 4, and a telescopic member 8 arranged on the bearing shaft 1 and capable of driving the hammer pushers 6 to move axially along the fan rings 4.
[0021] In this embodiment, a circular disc 2 is provided on the bearing shaft 1, the fixed part of the telescopic member 8 is installed on the circular disc 2, and the telescopic part of the telescopic member 8 passes through the circular disc 2 and is connected to the inner side wall of the hammer pusher 6.
[0022] In this embodiment, a second annular disk 3 is provided on the bearing shaft 1, the end of the hammer pusher 6 near the second annular disk 3 is set as an opening, the interior of the hammer pusher 6 is hollow, and the telescopic part of the telescopic member 8 passes through the first annular disk 2 and the second annular disk 3 and is connected to the inner sidewall of the hammer pusher 6.
[0023] In this embodiment, the annular disk 2 is provided with a guide cylinder 7 through which the telescopic part of the telescopic member 8 passes. The guide cylinder 7 passes through the annular disk 3 and extends into the hammer pusher 6. The telescopic part of the telescopic member 8 passes through the guide cylinder 7 and extends into the interior of the hammer pusher 6, and is connected to the inner sidewall of the hammer pusher 6.
[0024] In this embodiment, the thickness of the hammer pusher 6 along the bearing shaft 1 is less than the thickness of the fan ring 4 along the bearing shaft 1.
[0025] In this embodiment, the bearing shaft 1 includes a first shaft section 11, a second shaft section 12, and a third shaft section 13 connected in sequence. The first annular disk 2 is located at the connection between the second shaft section 12 and the third shaft section 13. The second annular disk 3 is located on the third shaft section 13. The fan ring 4 is fixed on the outer wall of the third shaft section 13. One end of the fan ring 4 is fixedly connected to the second annular disk 3. A gap is provided between the first annular disk 2 and the second annular disk 3.
[0026] In this embodiment, the first shaft 11, the second shaft 12, and the third shaft 13 are set to have different diameters in order to meet the installation requirements of the first annular disk 2, the second annular disk 3, the fan ring 4, and the hammer pusher 6, thereby improving the overall compactness after assembly.
[0027] In this embodiment, in actual use, the telescopic component 8 can be a cylinder, hydraulic cylinder, electric push rod, or other structure that can achieve telescopic movement, and is not specifically limited.
[0028] In this embodiment, during actual use, a gap is provided between the front end of the guide cylinder 7 and the inner side wall of the front end of the hammer pusher 6, so as not to affect the extension and retraction of the hammer pusher 6 with the telescopic member 8.
[0029] In this embodiment, during actual use, the hammer pusher 6 is provided with an end opening near the second annular disk 3. The hammer pusher 6 is hollow inside, so that the front end of the guide cylinder 7 passes through the second annular disk 3 and extends into the hammer pusher 6. The telescopic part of the telescopic component 8 is connected to the inner side wall of the front end of the hammer pusher 6, which also facilitates the maintenance or replacement of the telescopic component 8.
[0030] In this embodiment, the circular disc 3 is set up in actual use so that the rear ends of the two fan ring parts 4 can be integrated and fixed, and the guide cylinder 7 can be easily inserted, thus improving the overall integrity.
[0031] In this embodiment, the inside of the fan ring 4 is hollow during actual use, which facilitates weight reduction.
[0032] In this embodiment, during actual use, the inner side of the fan ring 4 and the outer side wall of the third shaft 13 are fitted and fixed together, and the inner side of the fan ring 4 is sealed by the third shaft 13. The outer side walls of the fan ring 4 and the hammer pusher 6 are flush with the outer side wall of the second annular disk 3.
[0033] In this embodiment, in actual use, two fan ring parts 4 are set to form two gap grooves 14 so that two hammer pushers 6 can be set in the two gap grooves 14 and can move axially in the gap grooves 14.
[0034] In this embodiment, during actual use, the thickness of the hammer pusher 6 along the axial direction of the bearing shaft 1 is less than the thickness of the fan ring 4 along the axial direction of the bearing shaft 1. This is so that when the telescopic member 8 drives the hammer pusher 6 to retract, there is a gap at the front end of the hammer pusher 6, which allows concrete to enter the gap. Then, the telescopic member 8 drives the hammer pusher 6 to extend, which pushes the concrete in the gap into the anchor hole, gradually achieving sealing.
[0035] In this embodiment, in actual use, two hammer pushers 6 and a gap groove 14 are provided, which can make the two hammer pushers 6 and the gap groove 14 work alternately, thereby improving the sealing efficiency.
[0036] In this embodiment, when a hammer pusher 6 is working, the gap groove 14 where the hammer pusher 6 is located is at the top, which facilitates the holding of concrete.
[0037] In this embodiment, during actual use, a power component can also be provided at the other end of the bearing shaft 1 to drive the hammer push assembly to rotate, so that the two hammer push components 6 work alternately while the hammer push assembly rotates. The power component is not specifically limited and can be an electric motor, hydraulic motor, etc.
[0038] In specific use, the telescopic member 8 drives the hammer pusher 6 to retract, and there is a gap at the front end of the hammer pusher 6. Concrete enters the gap. Then, the telescopic member 8 drives the hammer pusher 6 to extend, and the concrete in the gap is hammered and pushed into the anchor hole. The concrete is gradually sealed by the hammer pusher 6, so as to improve the compaction of the concrete sealing the anchor hole.
[0039] In summary, this utility model is reasonably designed. By using a hammer pusher to push the concrete at the front end of the hammer pusher into the anchor hole, the concrete is gradually sealed, thereby improving the compaction of the concrete sealing the anchor hole.
[0040] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A box girder anchoring hammer pusher assembly, characterized in that, It includes a bearing shaft (1), two fan rings (4) symmetrically arranged on the outer side wall of one end of the bearing shaft (1), two hammer pushers (6) symmetrically arranged between the two fan rings (4), and a telescopic member (8) arranged on the bearing shaft (1) and capable of driving the hammer pushers (6) to move axially along the fan rings (4).
2. A box girder anchoring hammer pusher assembly according to claim 1, characterized in that: A circular disc (2) is provided on the bearing shaft (1). The fixed part of the telescopic member (8) is installed on the circular disc (2). The telescopic part of the telescopic member (8) passes through the circular disc (2) and is connected to the inner wall of the hammer pusher (6).
3. A box girder anchoring hammer pusher assembly according to claim 2, characterized in that: The bearing shaft (1) is provided with a second annular disk (3). The end of the hammer pusher (6) near the second annular disk (3) is set as an opening. The hammer pusher (6) is hollow inside. The telescopic part of the telescopic member (8) passes through the first annular disk (2) and the second annular disk (3) and is connected to the inner wall of the hammer pusher (6).
4. A box girder anchoring hammer pusher assembly according to claim 3, characterized in that: The first annular disk (2) is provided with a guide cylinder (7) through which the telescopic part of the telescopic member (8) passes. The guide cylinder (7) passes through the second annular disk (3) and extends into the hammer pusher (6). The telescopic part of the telescopic member (8) passes through the guide cylinder (7) and extends into the interior of the hammer pusher (6), and is connected to the inner wall of the hammer pusher (6).
5. A box girder anchoring hammer pusher assembly according to claim 3, characterized in that: The thickness of the hammer pusher (6) along the bearing shaft (1) is less than the thickness of the fan ring (4) along the bearing shaft (1).
6. A box girder anchoring hammer pusher assembly according to claim 5, characterized in that: The bearing shaft (1) includes a first shaft section (11), a second shaft section (12) and a third shaft section (13) connected in sequence. The first annular disk (2) is located at the connection between the second shaft section (12) and the third shaft section (13). The second annular disk (3) is located on the third shaft section (13). The fan ring (4) is fixed on the outer wall of the third shaft section (13). One end of the fan ring (4) is fixedly connected to the second annular disk (3). A gap is provided between the first annular disk (2) and the second annular disk (3).