Push rod for stress meter and stress meter assembly
By designing a push rod for the stress gauge and adopting a multi-stage telescopic rod and guide wheel assembly, the difficulty of manually maintaining balance during the lowering of the stress gauge was solved, thus improving the accuracy and reliability of the test data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA PINGZHUANG COAL IND GRP CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, the push rod needs to be manually balanced during the lowering of the stress gauge, which makes the operation time-consuming and labor-intensive, and the accuracy and reliability of the detection data are poor.
A push rod for a stress gauge was designed, including a multi-stage telescopic rod, an extension limit buckle, and a guide wheel assembly. The guide wheel assembly supports the rod to the borehole wall, provides push guidance, and maintains the balance between the push rod and the stress gauge.
This has enabled the deployment of stress gauges in a time-saving and labor-saving manner, improving the accuracy and reliability of the test data.
Smart Images
Figure CN224174049U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining, and in particular to a push rod and stress gauge assembly for a stress gauge. Background Technology
[0002] Borehole stress gauges, as important in-situ monitoring devices in geotechnical engineering, play an irreplaceable role in scenarios such as early warning of rockbursts in coal mines, stability assessment of surrounding rock in tunnels, safety monitoring of water conservancy and hydropower projects, and slope stability analysis. In existing technologies, when lowering the stress gauge using a push rod, workers typically need to manually maintain the rod's balance to ensure the stress gauge's equilibrium and thus the accuracy and reliability of the data. This manual operation is time-consuming and labor-intensive; furthermore, maintaining balance manually throughout the lowering process is difficult, resulting in relatively poor accuracy and reliability of the data. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a push rod for a stress gauge and a stress gauge assembly.
[0004] In a first aspect, this utility model provides a push rod for a stress gauge, comprising: a push rod body; and a guide wheel assembly connected to the push rod body for supporting it against the borehole wall to provide pushing guidance for the push rod body.
[0005] According to the present invention, a push rod for a stress gauge is provided, the push rod body includes: a multi-stage telescopic rod, the multi-stage telescopic rod being slidably connected in sequence.
[0006] According to the present invention, a push rod for a stress gauge is provided, wherein the push rod body further includes an extension limiting buckle, and an extension limiting buckle is installed between each pair of adjacent telescopic rods, the extension limiting buckle being used to limit and fix the two adjacent telescopic rods to the extended state.
[0007] According to the present invention, a push rod for a stress gauge is provided, and each of the telescopic rods has a limiting hole.
[0008] The extension limiting buckle includes: a limiting post, which is adapted to the corresponding limiting hole; and a spring, one end of which is connected to the corresponding telescopic rod, and the other end of which is connected to the limiting post, for driving the limiting post to be inserted into the corresponding limiting hole.
[0009] According to the present invention, a push rod for a stress gauge is provided, the push rod for a stress gauge further includes a stress gauge mounting groove, the stress gauge mounting groove being disposed on the end telescopic rod of the multi-stage telescopic rod.
[0010] According to the present invention, a push rod for a stress gauge is provided, wherein the guide wheel assembly is disposed on the end telescopic rod.
[0011] According to the present invention, a push rod for a stress gauge includes a guide wheel assembly comprising: a support rod extending from one side of the end telescopic rod through the end telescopic rod to the other side of the end telescopic rod; a first guide wheel mounted on one end of the support rod; and a second guide wheel mounted on the other end of the support rod.
[0012] According to the present invention, a push rod for a stress gauge is provided, wherein the support rod passes through the axis of the end telescopic rod and is arranged perpendicular to the axial direction of the end telescopic rod.
[0013] According to the present invention, a push rod for a stress gauge is provided, wherein the support rod is a telescopic support rod.
[0014] A second aspect of this invention provides a stress gauge assembly, comprising a stress gauge push rod as described above, and a stress gauge mounted on the push rod.
[0015] The stress gauge push rod provided in this utility model includes a push rod body and a guide wheel assembly. The guide wheel assembly is disposed on the push rod body. For example, one end of the push rod body is for manual hand-holding, and the other end is for mounting the stress gauge. The guide wheel assembly is connected near the stress gauge mounting end. During the lowering of the stress gauge, the guide wheel assembly can support it against the borehole wall and provide pushing guidance for the push rod body to maintain its balance, thereby maintaining the balance of the stress gauge on the push rod body. This structural design allows workers to maintain the balance of the stress gauge in a time-saving and labor-saving manner, thereby improving the accuracy and reliability of the test data.
[0016] Furthermore, the stress gauge assembly provided by this utility model, since it includes the stress gauge push rod as described above, also possesses the advantages described above. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a simplified structural diagram of the push rod for the stress gauge provided by this utility model.
[0019] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.
[0020] Reference numerals: 100, push rod body; 110, telescopic rod; 200, guide wheel assembly; 210, support rod; 220, first guide wheel; 230, second guide wheel; 300, limiting post; 400, limiting hole; 500, stress gauge mounting slot. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 the embodiments of this utility model based on the specific circumstances.
[0024] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples to make the objectives, technical solutions, and advantages of the present invention clearer. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] The following is combined with Figure 1 and Figure 2 This invention describes a push rod and stress gauge assembly for a stress gauge according to an embodiment of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.
[0027] An embodiment of the first aspect of this utility model provides a push rod for a stress gauge, such as... Figure 1 As shown, the push rod for the stress gauge includes: a push rod body 100; and a guide wheel assembly 200, which is connected to the push rod body 100 and is used to support the borehole wall to provide push guidance for the push rod body 100.
[0028] The stress gauge push rod provided in this utility model includes a push rod body 100 and a guide wheel assembly 200. The guide wheel assembly 200 is disposed on the push rod body 100. For example, one end of the push rod body 100 is for manual hand-holding, and the other end is for mounting the stress gauge. The guide wheel assembly 200 is connected near the stress gauge mounting end. During the lowering of the stress gauge, the guide wheel assembly 200 can support it against the borehole wall and provide pushing guidance for the push rod body 100 to maintain the balance of the push rod body 100, thereby maintaining the balance of the stress gauge on the push rod body 100. This structural design allows workers to maintain the balance of the stress gauge in a time-saving and labor-saving manner, thereby improving the accuracy and reliability of the test data.
[0029] In one embodiment of this utility model, the push rod body 100 includes: a multi-stage telescopic rod 110, which are sequentially slidably connected.
[0030] Furthermore, in one embodiment of this utility model, the push rod body 100 further includes: an extension limiting buckle, wherein an extension limiting buckle is installed between each pair of adjacent telescopic rods 110, and the extension limiting buckle is used to limit and fix the two adjacent telescopic rods 110 to the extended state.
[0031] For example, such as Figure 1 As shown, in this embodiment, the push rod body includes three telescopic rods 110. The three telescopic rods 110 are a first telescopic rod, a second telescopic rod, and a third telescopic rod. The outer diameter of the first telescopic rod is slightly smaller than the inner diameter of the second telescopic rod, and the outer diameter of the second telescopic rod is slightly smaller than the inner diameter of the third telescopic rod. The first, second, and third telescopic rods are slidably connected in sequence. Telescopic limit buckles are provided between the first and second telescopic rods, and between the second and third telescopic rods. After the first telescopic rod is fully extended relative to the second telescopic rod, the telescopic limit buckles between them extend and keep the first telescopic rod in the fully extended state. After the second telescopic rod is fully extended relative to the third telescopic rod, the telescopic limit buckles between them extend and keep the second telescopic rod in the fully extended state.
[0032] In another embodiment of this utility model, such as Figure 1 As shown, each telescopic rod 110 has a limiting hole 400.
[0033] The extension limit buckle includes: a limit post 300, which is adapted to a corresponding limit hole 400; and a spring, one end of which is connected to a corresponding telescopic rod 110, and the other end of which is connected to the limit post 300, for driving the limit post 300 to be inserted into the corresponding limit hole 400.
[0034] For example, the end of the first telescopic rod is fitted inside the beginning of the second telescopic rod. A spring is connected to the inner wall of the end of the first telescopic rod, and the other end of the spring is connected to a limiting post 300. A through hole is provided on the first telescopic rod corresponding to the position of the limiting post 300, through which the limiting post 300 can pass. A limiting hole 400 is provided at the beginning of the second telescopic rod. When the first telescopic rod is fully extended relative to the second telescopic rod, the limiting post 300 can pass into the limiting hole 400 to keep the first telescopic rod in a fully extended state relative to the second telescopic rod. Similarly, the end of the second telescopic rod is fitted inside the beginning of the third telescopic rod. A spring is connected to the inner wall of the end of the second telescopic rod, and the other end of the spring is connected to a limiting post 300. A through hole is provided on the second telescopic rod corresponding to the position of the limiting post 300, through which the limiting post 300 can pass. A limiting hole 400 is provided at the beginning of the third telescopic rod. When the second telescopic rod extends to its full position relative to the third telescopic rod, the limiting post 300 can pass through the limiting hole 400 to keep the second telescopic rod in the fully extended state relative to the third telescopic rod. To retract, press the corresponding limiting post 300 and push the corresponding telescopic rod 110 to retract.
[0035] Compared with the segmented and spliced push devices in the prior art, the extension and retraction operations of the push rod body 100 are relatively simple.
[0036] In one embodiment of this utility model, the push rod for the stress gauge further includes a stress gauge mounting groove 500, which is disposed on the end telescopic rod of the multi-stage telescopic rod 110.
[0037] For example, such as Figure 1 and Figure 2 As shown, the stress gauge mounting slot 500 includes an insertion slot and a rotary mounting slot, which are connected. During installation, the stress gauge is first inserted into the insertion slot, and then the stress gauge is tightened along the rotary mounting slot.
[0038] In one embodiment of this utility model, the guide wheel assembly 200 is disposed on the end telescopic rod. The end telescopic rod is the telescopic rod 110 on which a stress gauge is mounted.
[0039] In one embodiment of the present invention, the guide wheel assembly 200 includes: a support rod 210, which extends from one side of the end telescopic rod through the end telescopic rod to the other side of the end telescopic rod; a first guide wheel 220, which is mounted on one end of the support rod 210; and a second guide wheel 230, which is mounted on the other end of the support rod 210.
[0040] In one embodiment of the present invention, the support rod 210 passes through the axis of the end telescopic rod and is arranged perpendicular to the axial direction of the end telescopic rod.
[0041] For example, such as Figure 1 and Figure 2 As shown, when the push rod body 100 is placed vertically, the support rod 210 is horizontally connected to the end telescopic rod. The support rod 210 can pass through the axis of the end telescopic rod. The two ends of the support rod 210 extend to the end telescopic rod by equal lengths. A first guide wheel 220 and a second guide wheel 230 are respectively installed at both ends of the support rod 210. During the lowering of the stress gauge, the first guide wheel 220 and the second guide wheel 230 can slide down along the borehole wall and provide support and guidance for the push rod body 100.
[0042] In another embodiment of this utility model, the support rod 210 is a telescopic support rod. Therefore, the length of the support rod 210 can be flexibly adjusted according to the size of the borehole diameter, allowing the first guide wheel 220 and the second guide wheel 230 to slide down along the borehole wall, greatly improving the versatility of the stress gauge push rod.
[0043] A second aspect of this utility model provides a stress gauge assembly, including a stress gauge push rod and a stress gauge as described above. The stress gauge is mounted on the push rod.
[0044] Furthermore, the stress gauge assembly provided by this utility model, since it includes the stress gauge push rod as described above, also possesses the advantages described above.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A push rod for a stress gauge, characterized in that, include: Push rod body (100); A guide wheel assembly (200) is connected to the push rod body (100) and is used to support the borehole wall to provide push guidance for the push rod body (100); The push rod body (100) includes: Multi-stage telescopic rods (110), the multi-stage telescopic rods (110) are sequentially slidably sleeved and connected; The guide wheel assembly (200) includes: A support rod (210) extends from one side of the end telescopic rod through the end telescopic rod to the other side of the end telescopic rod; The first guide wheel (220) is mounted on one end of the support rod (210); The second guide wheel (230) is mounted on the other end of the support rod (210).
2. The push rod for a stress gauge according to claim 1, characterized in that, The push rod body (100) also includes: An extension limit buckle is installed between each pair of adjacent telescopic rods (110). The extension limit buckle is used to limit and fix the two adjacent telescopic rods (110) to the extended state.
3. The push rod for a stress gauge according to claim 2, characterized in that, Each of the aforementioned telescopic rods (110) has a limiting hole (400). The extension limiting buckle includes: A limiting post (300) is adapted to the corresponding limiting hole (400); A spring, one end of which is connected to the corresponding telescopic rod (110), and the other end of which is connected to the limiting post (300), for driving the limiting post (300) to be inserted into the corresponding limiting hole (400).
4. The push rod for a stress gauge according to any one of claims 1 to 3, characterized in that, The push rod for the stress gauge also includes: A stress gauge mounting slot (500) is provided on the end telescopic rod of the multi-stage telescopic rod (110).
5. The push rod for a stress gauge according to claim 4, characterized in that, The guide wheel assembly (200) is mounted on the end telescopic rod.
6. The push rod for a stress gauge according to claim 1, characterized in that, The support rod (210) passes through the axis of the end telescopic rod and is arranged perpendicular to the axis of the end telescopic rod.
7. The push rod for a stress gauge according to claim 6, characterized in that, The support rod (210) is a telescopic support rod.
8. A stress gauge assembly, characterized in that, include: Push rod for stress gauge as described in any one of claims 1 to 7; A stress gauge is mounted on the push rod.