Multifunctional anchorage device
By designing a multi-functional control ring with internal collapse, the problem of limited functionality of conventional anchorages was solved, enabling multi-functional control and stress display of anchor bolts and cables under complex working conditions, thereby improving support efficiency and the accuracy of stress monitoring.
Patent Information
- Application Number
- CN202520181908.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Conventional anchorages have functional limitations in terms of preload control and stress protection, and cannot be selectively applied according to needs, resulting in reduced anchor bolt and cable support efficiency and inaccurate stress display.
A multifunctional anchor is designed, employing an internally collapsible multifunctional control ring, including a constant resistance energy-absorbing ring, a stress display ring, and a preload control ring. It can be selectively applied according to actual needs to achieve preload control, stress display, and energy absorption functions. The design of the inner wall gap and guide sleeve ensures the accuracy of the anchor rod's force direction and stress monitoring.
It enables multi-functional control of anchor bolts under complex working conditions, allowing stress monitoring without relying on instruments, improving the support efficiency of anchor bolts and cables and the accuracy of stress display, and preventing anchor bolt breakage.
Smart Images
Figure CN223594213U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mining anchor tool technical field, concretely is a multifunctional anchor tool. BACKGROUND
[0002] In the conventional anchor tool, according to actual environmental operation demand, anchor tool generally needs to have pre-tightening force control and stress protection function, and the general mode is, through the structure of outer expansion set in the end of constant resistance energy absorption ring, ensure that the anchor rod can open the annular structure after being stressed, realize pre-tightening force control by the way of crushing, but it is easy to cause the sudden drop of anchor rod anchor cable stress, influence the supporting efficiency of anchor rod anchor cable, at the same time, lose the stress display device function of pre-tightening force accurate control of anchor rod anchor cable, and the above structure generally cannot selectively apply function according to actual design demand. SUMMARY
[0003] To solve the problem that the conventional anchor tool let pressure mode is not easy to subsequent stress detection and the overall functionality is limited, the utility model provides a multifunctional anchor tool.
[0004] The utility model technical scheme is as follows:
[0005] A multifunctional anchor tool, comprising an anchor rod, the end of the anchor rod is fixed with a locking piece, and the end of the anchor rod away from the locking piece sequentially passes through a multifunctional control ring, a pipe reducer and a tray;
[0006] The end of the multifunctional control ring away from the locking piece is inserted between the pipe reducer and the anchor rod and does not pass through the pipe reducer;
[0007] The multifunctional control ring comprises a constant resistance energy absorption ring and / or a stress display ring and / or a pre-tightening force control ring arranged integrally.
[0008] Distinguish from the existing anchor tool structure, the device can selectively apply the function of multifunctional control ring according to actual demand, and it is more suitable for complex operation conditions.
[0009] As a preferred scheme, the inner wall of the multifunctional control ring does not contact the anchor rod. Since the device distinguishes from the way of outer expansion and adopts the way of inner crushing, sufficient space needs to be reserved.
[0010] In order to ensure that it can crush inward, the end of the multifunctional control ring close to the pipe reducer is inverted flat angle, and the pipe reducer only fits with the multifunctional control ring at the flat angle, and there is a gap at other positions.
[0011] The specific structure of the above constant resistance energy absorption ring is that the contact surface of the constant resistance energy absorption ring and the locking piece is perpendicular to the anchor rod.
[0012] The stress display ring is arranged perpendicularly to the anchor rod at the plane where the end of the stress display ring is close to the locking member, and the outer wall of the stress display ring is provided with a plurality of annular color strips along the length direction of the anchor rod.
[0013] As a preferred solution, the multifunctional control ring comprises at least one of the stress display ring and the pre-tightening force control ring.
[0014] The pre-tightening force control ring comprises two arrangement states.
[0015] When the multifunctional control ring only comprises the pre-tightening force control ring, the wall thickness of the pre-tightening force control ring close to the locking member gradually increases towards the end of the pipe reducer.
[0016] When the multifunctional control ring comprises the pre-tightening force control ring, the constant-resistance energy absorption ring and / or the stress display ring, the wall thickness of the pre-tightening force control ring close to the locking member gradually decreases towards the end of the pipe reducer. According to the actual situation, the inner collapse mode can be selected.
[0017] In order to ensure irregular deformation, the wall thickness of the connection part of the constant-resistance energy absorption ring and the stress display ring is the same.
[0018] The wall thickness of the connection part of the constant-resistance energy absorption ring and the pre-tightening force control ring is the same.
[0019] The wall thickness of the connection part of the stress display ring and the pre-tightening force control ring is the same.
[0020] The wall thickness of the connection part of the constant-resistance energy absorption ring, the stress display ring and the pre-tightening force control ring is the same.
[0021] In order to guide, the anchor rod is provided with a guide sleeve between the multifunctional control ring and the pipe reducer.
[0022] The specific arrangement mode of the above structure is that when the multifunctional control ring comprises the constant-resistance energy absorption ring arranged integrally, and the stress display ring and / or the pre-tightening force control ring, the constant-resistance energy absorption ring is arranged close to the locking member.
[0023] When the multifunctional control ring comprises the pre-tightening force control ring arranged integrally, and the constant-resistance energy absorption ring and / or the stress display ring, the pre-tightening force control ring is arranged close to the pipe reducer.
[0024] In order to facilitate the adjustment of the stress direction of the anchor rod, the contact surface between the pipe reducer and the tray is a spherical surface.
[0025] The utility model discloses a beneficial effect lies in: the utility model discloses a kind of multifunctional anchor, unlike the anchor structure of existing, the multifunctional control ring in the device can be freely selected according to actual operation installation demand, and can be freely selected and applied in pre-tightening force control function, stress display function and let pressure energy absorption function, and then be applicable to various working conditions, wherein stress display function can be monitored and displayed in the case without relying on instrument. BRIEF DESCRIPTION OF DRAWINGS
[0026] The scheme and advantages of the present application will become clear to those skilled in the art from the following detailed description of the preferred embodiments. The drawings are only for the purpose of showing the preferred embodiments and are not considered as limiting the utility model.
[0027] In the drawings:
[0028] Figure 1 is the utility model structural schematic diagram;
[0029] Figure 2 is the utility model multifunctional control ring sectional structure schematic diagram;
[0030] Figure 3 is the utility model multifunctional control ring structure schematic diagram;
[0031] Figure 4 is the utility model multifunctional control ring sectional structure schematic diagram (after constant resistance energy absorption ring and stress display ring combination);
[0032] Figure 5 is the utility model multifunctional control ring sectional structure schematic diagram (pre-tightening force control ring);
[0033] Figure 6 is Figure 1 partial structure schematic diagram;
[0034] Figure 7 is the structure schematic diagram after pre-pressing;
[0035] Components represented by each reference numeral in the drawings are:
[0036] 1, anchor rod;2, locking piece;3, tray;4, pipe reducer;5, multifunctional control ring;51, constant resistance energy absorption ring;52, stress display ring;53, pre-tightening force control ring;6, guide sleeve. DETAILED DESCRIPTION
[0037] As Figure 1The multifunctional anchor shown comprises an anchor rod 1, which can be a rod or a cable, and the specific selection is made according to the situation. It should be noted that the end of the anchor rod 1 is fixed with a locking piece 2, which can move synchronously with the anchor rod 1 after being fixed with the anchor rod 1. The end of the anchor rod 1 away from the locking piece 2 successively penetrates a multifunctional control ring 5, a pipe reducer 4 and a tray 3. The pipe reducer 4 is used to limit and collapse the multifunctional control ring 5 when the anchor rod 1 bears stress. The tray 3 is a conventional structure and will not be described here. In order to facilitate the adjustment of the stress direction of the anchor rod 1, the contact surface of the pipe reducer 4 and the tray 3 is spherical, which ensures that the stress direction of the anchor rod 1 is perpendicular to avoid the problem of fracture and ensure the accuracy of stress detection.
[0038] Then, it should be noted that the end of the multifunctional control ring 5 away from the locking piece 2 is inserted between the pipe reducer 4 and the anchor rod 1 and cannot pass through the pipe reducer 4 and the anchor rod 1. In the above manner, it can be ensured that the pre-tightening force control ring 53 can be pressed and collapsed when the pre-tightening force control ring 53 exists, but it will not directly pass through the gap and thus cannot bear stress.
[0039] In the above structure, according to the different installation conditions of the mine, the multifunctional control ring 5 has multiple setting modes, that is, the multifunctional control ring 5 comprises an integral constant resistance energy absorption ring 51 and / or a stress display ring 52 and / or a pre-tightening force control ring 53. The integral setting is preferably integrally formed, and other fixing connections can also be used.
[0040] The function of the constant resistance energy absorption ring 51 is to control the ring to be completely pressed into the ball pad when the pre-tightening force is reached during the installation of the anchor rod (cable), otherwise, the pre-tightening force does not meet the requirements, and the control ring ensures that the anchor rod installation pre-tightening force meets the design requirements.
[0041] The constant resistance energy absorption ring 51 functions to ensure that the anchor rod / cable has the function of constant resistance adjustment to resist deformation, and can also produce displacement when the constant resistance force is exceeded, thereby avoiding the fracture of the anchor rod / cable and having a protection function.
[0042] The function of the stress display ring 52 is to identify by color to ensure that the staff can understand whether the structure reaches the preset constant resistance force, or the constant resistance force interval position and the actual stress position without using tools, which is convenient for observation.
[0043] The function of the pre-tightening force control ring 53 is to control the ring to be completely pressed into the ball pad when the pre-tightening force is reached during the installation of the anchor rod / cable, otherwise, the pre-tightening force does not meet the requirements, and the control ring ensures that the anchor rod installation pre-tightening force meets the design requirements.
[0044] Furthermore, in the above structure, the constant resistance energy-absorbing ring 51 is positioned close to the locking member 2, and the pre-tightening force control ring 53 is positioned close to the tube shrinker 4. That is, the arrangement is such that when the multi-functional control ring 5 includes an integrally formed constant resistance energy-absorbing ring 51, as well as a stress display ring and / or a pre-tightening force control ring, the constant resistance energy-absorbing ring 51 is positioned close to the locking member 2; when the multi-functional control ring 5 includes an integrally formed pre-tightening force control ring 53, as well as a constant resistance energy-absorbing ring and / or a stress display ring, the pre-tightening force control ring 53 is positioned close to the tube shrinker 4.
[0045] The aforementioned constant resistance energy absorption ring 51, stress display ring 52, and preload control ring 53 can be set individually or in combination to achieve different functions, such as... Figure 2 , 3 As shown, the above structure can achieve all functions. While being able to deform and collapse, it can display the current stress through the stress display ring 52, thus making it easy to know whether the preset constant resistance position has been reached. Furthermore, it can be protected by the constant resistance energy absorption ring 51 to ensure that deformation continues even if the stress exceeds the range, thereby preventing the anchor bolt from breaking.
[0046] Generally, the multifunctional control ring 5 includes at least one of a stress display ring 52 and a preload control ring 53. While simply setting a constant resistance energy-absorbing ring 51 can achieve constant resistance through deformation and collapse, its functional effect is the same as the previously applied-for expansion structure, but the principle and implementation method are completely different. Furthermore, the previously applied expansion structure cannot be combined with the stress display ring 52 and preload control ring 53 of this application. Therefore, when combined with the stress display ring 52 and preload control ring 53, the aforementioned constant resistance energy-absorbing ring 51 also has special design significance.
[0047] like Figure 4 As shown, this is a combination of a constant resistance energy-absorbing ring 51 and a stress display ring 52. It can protect the anchor rod from displacement caused by deformation, and after deformation, it can also obtain the current range of maximum stress through the stress display ring, which is convenient to obtain this information directly without the need for additional equipment for detection.
[0048] The above structure can achieve this. Unlike existing anchor structures, this device can selectively apply the functions of the multi-functional control loop 5 according to actual needs, making it more suitable for complex operating conditions.
[0049] It should be noted that, as a preferred embodiment, the inner wall of the multi-functional control ring 5 does not contact the anchor rod 1. Since this device differs from external expansion by employing internal collapse, sufficient space needs to be reserved. The collapse mechanism must be ensured to be inward.
[0050] And, in order to ensure that can be collapsed inward, the multifunctional control ring 5 near the end of the end of the pipe reducer 4, and the pipe reducer 4 only in the flat angle of the multifunctional control ring 5 with it, there is a gap in other locations. The gap here can be filled by the pre-tightening force control ring 53 after the collapse, and as shown in the state. Figure 7
[0051] As a preferred embodiment, the specific structure of the constant resistance energy absorbing ring 51 is that the plane where the contact surface of the constant resistance energy absorbing ring 51 is located is perpendicular to the anchor rod 1. That is, it is ensured that the force direction is perpendicular to the anchor rod.
[0052] And the specific structure of the stress display ring 52 is that the plane where the end of the stress display ring 52 is located is perpendicular to the anchor rod 1, and the outer wall of the stress display ring 52 is provided with a plurality of annular color strips along the length direction of the anchor rod 1. The annular color strips are distinguished by different colors to facilitate the judgment of the staff through the area.
[0053] Finally, the specific structure of the pre-tightening force control ring 53 is that the pre-tightening force control ring 53 includes two setting states.
[0054] Among them, as shown in the figure, as a preferred scheme, when the multifunctional control ring 5 only includes the pre-tightening force control ring 53, the wall thickness of the pre-tightening force control ring 53 near one end of the locking piece 2 gradually increases towards one end of the pipe reducer 4; Figure 5
[0055] And as shown in the figure, Figure 2 , 6 When the multifunctional control ring 5 includes the pre-tightening force control ring 53, the constant resistance energy absorbing ring 51 and / or the stress display ring 52, the wall thickness of the pre-tightening force control ring 53 near one end of the locking piece 2 gradually decreases towards one end of the pipe reducer 4. According to the actual situation, the inward collapse mode can be selected.
[0056] The above two modes can achieve the deformation effect of the pre-tightening force control ring 53, but considering that the deformation modes are different, the positions are different, so there are differences.
[0057] Correspondingly, it should be noted that in order to ensure irregular deformation, the wall thickness of the connection between the constant resistance energy absorbing ring 51 and the stress display ring 52 is the same;
[0058] The wall thickness of the connection between the constant resistance energy absorbing ring 51 and the pre-tightening force control ring 53 is the same;
[0059] The wall thickness of the connection between the stress display ring 52 and the pre-tightening force control ring 53 is the same;
[0060] The wall thickness of the connection of the constant resistance energy absorbing ring 51, the stress display ring 52 and the pre-tightening force control ring 53 is the same.
[0061] Finally, in order to guide, the anchor rod 1 is provided with a guide sleeve 6 between the multifunctional control ring 5 and the shrinker 4. The guide sleeve 6 is generally made of polymer and has a deformation function and can be used for guiding.
Claims
1. A multifunctional anchorage comprising an anchor rod (1), characterized in that, The end of the anchor rod (1) is fixed with a locking member (2), and the end of the anchor rod (1) away from the locking member (2) passes through the multi-functional control ring (5), the tube shrinker (4) and the tray (3) in sequence; The end of the multi-functional control ring (5) away from the locking member (2) is inserted between the shrink tube (4) and the anchor rod (1) without passing through the shrink tube (4); The multi-functional control ring (5) includes an integrally formed constant resistance energy absorption ring (51) and / or stress display ring (52) and / or preload control ring (53).
2. The multi-functional anchor of claim 1, wherein The inner wall of the multifunctional control ring (5) does not contact the anchor rod (1).
3. A multi-functional anchor as claimed in claim 2, wherein, The end of the multi-functional control ring (5) near the tube shrinker (4) is chamfered, and the tube shrinker (4) only fits against the multi-functional control ring (5) at the chamfered corner, with gaps at other locations.
4. The multi-functional anchor of claim 1 wherein, The plane where the contact surface between the constant resistance energy-absorbing ring (51) and the locking member (2) is located is perpendicular to the anchor rod (1).
5. The multi-functional anchor of claim 1 wherein, The stress display ring (52) is located on a plane perpendicular to the anchor rod (1) near the end of the locking member (2), and the outer wall of the stress display ring (52) is provided with multiple annular color stripes along the length of the anchor rod (1).
6. The multi-functional anchor of claim 1 wherein, The multifunctional control ring (5) includes at least one of a stress display ring (52) and a preload control ring (53).
7. A multi-functional anchor as defined in claim 6, wherein The preload control ring (53) includes two setting states: When the multifunctional control ring (5) only includes the pre-tightening control ring (53), the wall thickness of the pre-tightening control ring (53) near the locking member (2) gradually increases towards the tube shrinker (4); When the multifunctional control ring (5) includes a preload control ring (53), a constant resistance energy absorption ring (51), and / or a stress display ring (52), the wall thickness of the preload control ring (53) near the locking member (2) gradually decreases towards the tube shrinker (4).
8. The multi-functional anchor of claim 1 wherein, The wall thickness is the same at the connection between the constant resistance energy absorption ring (51) and the stress display ring (52); The wall thickness at the connection between the constant resistance energy absorption ring (51) and the preload control ring (53) is the same; The stress display ring (52) and the preload control ring (53) have the same wall thickness at their connection. The wall thickness is the same at the connection of the constant resistance energy absorption ring (51), stress display ring (52) and preload control ring (53).
9. The multi-functional anchor of claim 1 wherein, The anchor bolt (1) has a guide sleeve (6) between the multi-functional control ring (5) and the tube shrinker (4).
10. The multi-functional anchor of claim 1 wherein, When the multi-functional control ring (5) includes an integrally formed constant resistance energy absorption ring (51), a stress display ring (52), and / or a preload control ring (53), the constant resistance energy absorption ring (51) is positioned close to the locking member (2); When the multi-functional control ring (5) includes an integrally formed preload control ring (53), a constant resistance energy absorption ring (51), and / or a stress display ring (52), the preload control ring (53) is positioned close to the tube shrinker (4).