Mining anchor rod and anchor cable multifunctional detector
By designing a multi-functional testing instrument for mine anchor bolts and cables that combines telescopic rods and clamps with a spring negative pressure device, the problem of the inability to simulate the stress changes of anchor bolts and cables in existing technologies has been solved. This instrument enables accurate dynamic detection of anchor bolt and cable stress, improving the accuracy and comprehensiveness of the testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-27
- Publication Date
- 2026-04-03
AI Technical Summary
Existing multi-functional testing instruments for mining anchor bolts and cables cannot simulate the stress changes of anchor bolts, cables, and anchors during actual use, resulting in limited testing effectiveness.
A multi-functional testing instrument for mine anchor bolts and cables was designed. It uses telescopic rods and clamps to hold the anchor bolts and cables, and maintains a constant tension or thrust through springs and negative pressure devices. It combines X-ray sensors to perform non-contact stress detection.
It enables precise and dynamic detection of anchor stress in anchor bolts and cables, reduces the impact of external force fluctuations on the detection, and improves the accuracy and comprehensiveness of the detection.
Smart Images

Figure CN224081098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stress detection devices, specifically a multi-functional testing instrument for mine anchor bolts and cables. Background Technology
[0002] The anchoring quality and stress stability of anchor bolts and cables in mine support are directly related to mine safety. Therefore, they must meet the mandatory requirements of national mine safety monitoring and support quality control. As mining extends to deeper, high-stress areas, higher standards are being set for the accuracy and comprehensiveness of support testing. To achieve efficient monitoring of anchoring performance, it is urgent to develop a multi-functional testing instrument for mine anchor bolts and cables that is suitable for complex working conditions.
[0003] Existing multi-functional testing instruments for mining anchor bolts and cables can only detect stress under a single condition, and cannot simulate the stress changes of anchor bolts, cables, and anchors during actual use, thus limiting the effectiveness of the device in detecting stress in anchor bolts, cables, and anchors.
[0004] In view of this, we propose a multi-functional testing instrument for mine anchor bolts and cables to solve the existing problems. Utility Model Content
[0005] The purpose of this utility model is to provide a multi-functional testing instrument for mine anchor bolts and cables to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional detector for mine anchor bolts and cables, comprising a housing, a base, and a telescopic rod, wherein the housing is mounted on the top left side of the base via a hinge, and an X-ray sensor is fixedly mounted on the top of the housing;
[0007] A mounting bracket is fixedly installed on the top right side of the base;
[0008] A telescopic rod is fixedly installed on the left side of the mounting bracket. The telescopic rod is installed horizontally, and the outer side of the telescopic rod is connected to the outer wall of the housing by a rubber ring.
[0009] Preferably, an air pump is fixedly installed on the left side of the housing, and the input end of the air pump is connected to the interior of the housing.
[0010] Preferably, a handle is fixedly installed on the front of the housing, and a fixing clip is fixedly installed on the left inner wall inside the housing.
[0011] Preferably, the top of the base is provided with a testing platform located directly below the housing, and the testing platform has a frosted surface.
[0012] Preferably, the telescopic rod is an electric telescopic rod, and the left end of the telescopic rod penetrates through the housing and extends into the interior of the housing. A sleeve is fixedly installed at the left end of the telescopic rod, and a connecting seat is installed inside the sleeve by a sealing ring. A spring is fixedly installed on the right side of the connecting seat, and the right end of the spring is fixedly connected to the inner wall of the sleeve.
[0013] Preferably, the connector has a horizontally arranged connecting hole inside, and a sealing plug is snapped into the left end of the connecting hole, and a clamp is fixedly installed on the left side of the connector.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model has a telescopic rod installed above the base. The clamp and fixing clamp at the left end of the telescopic rod can clamp the two sides of the anchor cable respectively. Under the action of the telescopic rod's telescopic movement, a certain amount of tension and thrust are applied to the anchor cable, thereby enabling precise detection of the stress change state of the anchor cable dynamically.
[0016] 2. This utility model has a spring installed between the sleeve and the connecting seat, and a connecting hole is provided inside the connecting seat. The air between the connecting seat and the sleeve can be extracted together by the elastic force of the spring and the negative pressure inside the shell. This keeps the elastic force between the connecting seat and the sleeve constant. Therefore, when the clamp holds the anchor bolt, a constant tensile or pushing force is applied to the anchor bolt, avoiding irregular changes in the tensile or pushing force on the anchor bolt that would affect the dynamic force detection effect of the device. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the left side of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the right side of this utility model;
[0019] Figure 3 This is a front structural diagram of the present invention;
[0020] Figure 4 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the present invention;
[0021] Figure 5 This is a partial front cross-sectional view of the present invention.
[0022] Figure 6 This is a partial three-dimensional cross-sectional structural diagram of the present invention.
[0023] In the diagram: 1. Housing; 101. X-ray sensor; 102. Air pump; 103. Handle; 104. Fixing clamp; 2. Base; 201. Mounting bracket; 202. Detection table; 3. Telescopic rod; 301. Clamp; 302. Sleeve; 303. Connecting seat; 304. Spring; 305. Sealing plug. Detailed Implementation
[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0025] like Figure 1 - Figure 6 As shown, the present invention proposes a multi-functional testing instrument for mine anchor bolts and cables, comprising a housing 1, a base 2, and a telescopic rod 3. The housing 1 is mounted on the top left side of the base 2 via a hinge. An X-ray sensor 101 is fixedly mounted on the top of the housing 1. The base 2 provides a mounting position for the top components, and anti-slip feet are fixedly mounted on both sides of the bottom of the base 2 to ensure the overall stability of the device during operation. The X-ray sensor 101 can uniformly emit X-rays to the anchor bolts and cables to be tested, thereby performing non-contact stress testing on the anchor bolts and cables based on X-rays.
[0026] A mounting bracket 201 is fixedly installed on the top right side of the base 2. The mounting bracket 201 can fix the right end of the telescopic rod 3, thereby ensuring the overall stability of the telescopic rod 3 during operation.
[0027] A telescopic rod 3 is fixedly installed on the left side of the mounting frame 201. The telescopic rod 3 is installed horizontally, and the outer side of the telescopic rod 3 is connected to the outer wall of the housing 1 by a rubber ring. The telescopic rod 3 can extend and retract in the horizontal direction, thereby pushing the clamp 301 to move horizontally and applying a certain amount of tension or thrust to the anchor bolt, so that the device can dynamically detect the stress of the anchor bolt.
[0028] Furthermore, an air pump 102 is fixedly installed on the left side of the housing 1, and the input end of the air pump 102 is connected to the inside of the housing 1. After the air pump 102 is powered on, it can draw air from the inside of the housing 1, thereby drawing the internal environment of the housing 1 to near vacuum, so as to avoid the air flow affecting the X-ray detection effect.
[0029] Furthermore, a handle 103 is fixedly installed on the front of the housing 1, and a fixing clip 104 is fixedly installed on the inner left side wall inside the housing 1. The handle 103 can provide a hand position for the housing 1, so as to facilitate opening and closing of the housing 1. The fixing clip 104 can limit and fix one end of the anchor bolt, and then cooperate with the telescopic rod 3 to perform dynamic stress detection on the anchor bolt.
[0030] Furthermore, a testing platform 202 is provided on the top of the base 2 directly below the housing 1, and the testing platform 202 has a frosted surface. The testing platform 202 can provide a testing background for the anchor bolts and cables, and then cooperate with X-rays to detect the stress state of the anchor bolts and cables.
[0031] Furthermore, the telescopic rod 3 is an electric telescopic rod 3, and the left end of the telescopic rod 3 penetrates the housing 1 and extends into the interior of the housing 1. A sleeve 302 is fixedly installed on the left end of the telescopic rod 3. A connecting seat 303 is installed inside the sleeve 302 by means of a sealing ring. A spring 304 is fixedly installed on the right side of the connecting seat 303, and the right end of the spring 304 is fixedly connected to the inner wall of the sleeve 302. When the telescopic rod 3 is working, the sleeve 302 at its left end and the connecting seat 303 are provided with constant elastic force support by the spring 304, which ensures that the clamp 301 can apply a uniform and stable force when clamping the anchor rod, thereby avoiding detection errors caused by external force fluctuations.
[0032] Furthermore, the connecting seat 303 has a horizontally arranged connecting hole inside, and a sealing plug 305 is snapped into the left end of the connecting hole. A clamp 301 is fixedly installed on the left side of the connecting seat 303. The clamp 301 can firmly hold one end of the anchor rod. Under the drive of the telescopic rod 3, the operation of applying tension or thrust to the anchor rod is realized. The sealing plug 305 ensures the sealing of the connecting hole and prevents the negative pressure state inside the housing 1 from being affected, thereby ensuring that the elastic force between the connecting seat 303 and the sleeve 302 remains constant.
[0033] Working principle: First, the anchor bolt to be tested is placed on the testing table 202, and one end is fixed by the fixing clamp 104. At the same time, the clamp 301 on the left end of the telescopic rod 3 is adjusted to hold the other end of the anchor bolt. Then, the air pump 102 is started to evacuate the inside of the housing 1 to a near-vacuum state to reduce the interference of air flow on X-ray detection. Next, the telescopic rod 3 is started, and its horizontal telescopic movement applies tension or thrust to the anchor bolt to simulate the stress changes in actual use. During this process, the X-ray sensor 101 continuously emits X-rays to capture the stress distribution of the anchor bolt in real time and transmits the data to external monitoring equipment for analysis.
[0034] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A multi-functional testing instrument for mine anchor bolts and cables, comprising a housing (1), a base (2), and a telescopic rod (3), characterized in that: The base (2) has a housing (1) mounted on its top left side via a hinge, and an X-ray sensor (101) is fixedly mounted on the top of the housing (1). A mounting bracket (201) is fixedly installed on the top right side of the base (2). A telescopic rod (3) is fixedly installed on the left side of the mounting bracket (201). The telescopic rod (3) is installed horizontally, and the outer side of the telescopic rod (3) is connected to the outer wall of the housing (1) by a rubber ring.
2. The multi-functional testing instrument for mine anchor bolts and cables according to claim 1, characterized in that: An air pump (102) is fixedly installed on the left side of the housing (1), and the input end of the air pump (102) is connected to the inside of the housing (1).
3. The multi-functional testing instrument for mine anchor bolts and cables according to claim 1, characterized in that: A handle (103) is fixedly installed on the front of the housing (1), and a fixing clip (104) is fixedly installed on the left inner wall inside the housing (1).
4. The multi-functional testing instrument for mine anchor bolts and cables according to claim 1, characterized in that: The top of the base (2) is provided with a testing platform (202) located directly below the housing (1), and the testing platform (202) has a frosted surface.
5. A multi-functional testing instrument for mine anchor bolts and cables according to claim 1, characterized in that: The telescopic rod (3) is an electric telescopic rod, and the left end of the telescopic rod (3) passes through the housing (1) and extends into the interior of the housing (1). A sleeve (302) is fixedly installed on the left end of the telescopic rod (3). A connecting seat (303) is installed inside the sleeve (302) by means of a sealing ring. A spring (304) is fixedly installed on the right side of the connecting seat (303), and the right end of the spring (304) is fixedly connected to the inner wall of the sleeve (302).
6. A multi-functional testing instrument for mine anchor bolts and cables according to claim 5, characterized in that: The connecting seat (303) has a horizontally arranged connecting hole inside, and a sealing plug (305) is snapped into the left end of the connecting hole. A clamp (301) is fixedly installed on the left side of the connecting seat (303).