A detection device for fixed point shear test and a method of using the same

Abstract

The present invention relates to the technical field of detection devices, and specifically discloses a detection device for fixed point shear resistance test and a method for using the same, the detection device comprises a structure, on which a plurality of test points are evenly spaced; a fixed point is fixed at any test point on the structure, a detection component comprises a hydraulic clamp connected to the fixed point, a connecting ring is sleeved on the hydraulic clamp, the connecting ring is connected to a pull rod, the pull rod is slidably connected to an auxiliary support frame and a reaction tube, the reaction tube is connected to a hollow jack and a reaction plate, the detection component clamps or releases the fixed point through the hydraulic clamp connected to the pull rod; compared with traditional structures of the same area, the present invention has more fixed point test points on the surface of the structure, so that the structure is effectively utilized, and there is no need for operators to install or disassemble diagonal braces on the structure, thus saving time for continuous disassembly and assembly of the detection device for multiple fixed point tests, and bringing convenience to the operators.

Description

Technical Field

[0001] The present invention relates to the field of detection devices, and in particular to a detection device for fixed point shear resistance testing and a use method thereof. Background Art

[0002] Concrete building structures have post-anchors or welding points on metal structures. In this article, such load-bearing components are collectively referred to as fixed points, such as anchor bolts. The mechanical property test of this fixed point is currently basically only a tensile test, that is, the force direction of the load-bearing component in the test is perpendicular to the structural surface where it is located. However, the force that the embedded or post-anchored components in the structure are subjected to during work is generally not only a tensile force, but also a shear force (the force direction is parallel to the structural surface).

[0003] A Chinese patent document CN208968943U discloses a detection device for fixed point shear test, including a main support frame, characterized in that: it also includes a pull rod, a connector, a fixing nut and a jack, the main support frame includes a main support plate and a diagonal support plate, the main support plate is attached and fixed to the side of the structure and extends out of the top of the side of the structure, and the diagonal support plate is a right-angle plate; a fixed point is provided on the top surface of the structure; the inner end of the pull rod is inserted from the pull rod hole and fixed to the fixed point with a connector, and the moving end of the jack is fixed to the outer end of the pull rod with a fixing nut. The overall structure of the device is simple, easy to use, accurate in measurement, safe and reliable;

[0004] However, in the process of using the detection device, the following problems were also found: First, since the diagonal brace plate needs to be anchored to the structure, each time a fixed point is detected, it is necessary to drill additional holes on the surface of the structure for fixing the diagonal brace plate, which not only occupies the fixed point test points of the structure, making the structure not effectively utilized, but also increases the workload of the operator to install and disassemble the detection components, causing inconvenience to the operator; Second, the main support plate is prone to fatigue and deformation during the test of continuous fixed points, which affects the test process and results;

[0005] Therefore, the present invention proposes a detection device for fixed point shear test and a method of using the same to solve the above-mentioned problems. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] The problem to be solved by the present invention is to provide a detection device for fixed point shear test and a use method thereof, so as to overcome the defects in the prior art.

[0008] (II) Technical solution

[0009] In order to solve the technical problem, the present invention provides a detection device for fixed point shear test, comprising a structure, on which a plurality of test points are evenly spaced; a fixed point, which is fixed to any of the test points on the structure; a detection component, which comprises a hydraulic clamp connected to the fixed point, on which a connecting ring is sleeved, and the connecting ring is connected to a pull rod, and the pull rod is slidably connected to an auxiliary support frame and a reaction force tube, and the reaction force tube is connected to a hollow jack and a reaction force plate, and the detection component clamps or releases the fixed point through the hydraulic clamp connected to the pull rod;

[0010] A reaction tube, wherein the reaction tube is in a rectangular hollow structure, an X-shaped bracket is connected to the hollow inner wall of the reaction tube, matching holes are provided on the reaction tube and the X-shaped bracket, the base of the hollow jack is placed in the matching hole, the base of the hollow jack abuts against the middle of the X-shaped bracket, and the reaction tube and the X-shaped bracket limit the hollow jack through the matching hole;

[0011] The reaction tube and the X-shaped bracket are also provided with a through hole connected with the matching hole, and the end of the pull rod away from the hydraulic clamp passes through the through hole and is connected with the movable end of the hollow jack.

[0012] Furthermore, the pull rod is a screw rod, the clamp part of the hydraulic clamp is made of tungsten steel, and an adjusting nut is threadedly connected to the pull rod, and the adjusting nut is in abutment with the movable end of the hollow jack.

[0013] Furthermore, two groups of bolt holes are symmetrically opened on the reaction tube, the reaction plate is in the shape of a right-angled trapezoid, and connecting holes corresponding to the bolt holes are opened on the reaction plate. The reaction tube and the reaction plate are connected with bolts through the bolt holes and the connecting holes. One end of the bolt is located between the reaction tube and the X-shaped bracket and contacts the base of the hollow jack.

[0014] Furthermore, the reaction plate is provided with an attachment plate that cooperates with the end face of the structure, the reaction plate is provided with a chamfer, the reaction tube cooperates with the side end face of the structure, and the angle between the plate surface of the attachment plate and the plate surface of the reaction plate is 90°.

[0015] Furthermore, the auxiliary support frame is located between the hydraulic clamp and the reaction tube, and the bolt diameter of the bolt is larger than the bolt body diameter of the fixing point.

[0016] Furthermore, a spring accordion cover is connected to the lower end of the connecting ring, and the spring accordion cover is arranged outside the clamping head of the hydraulic clamp. When the clamping head of the hydraulic clamp clamps the fixed point, one end of the spring accordion cover contacts the end face of the structure.

[0017] A method for using a detection device for fixed point shear test, comprising:

[0018] S1. Use a mold to pour concrete to form a rectangular structure with a size of 1m×1m. Use a plumb bob to draw auxiliary lines at equal intervals in both horizontal and vertical directions on the structure, so that multiple auxiliary lines on the end face of the structure form multiple evenly distributed intersections. The distance between each two adjacent intersections is the same and not less than 10cm. Use any intersection as a detection point to anchor bolts to form a fixed point;

[0019] S2. Align the clamp of the hydraulic clamp with the fixed point and perform clamping operation, so that one end of the spring accordion cover contacts the structure, the pull rod corresponds to the corresponding auxiliary line, and adjust the position of the auxiliary support frame on the pull rod so that the auxiliary support frame is close to the midpoint between the fixed point and the side end of the structure, so that the detection component is fixedly supported on the structure, and the bottom end surface of the attachment plate is basically flush with the end surface of the structure;

[0020] S3, push the reaction tube and the reaction plate against the structure along the axial direction of the pull rod, so that the reaction tube contacts the side end surface of the structure, and the reaction plate contacts the upper end surface of the structure, and adjust the adjustment nut on the pull rod so that the adjustment nut contacts the movable end of the hollow jack. At this time, the detection assembly is in a state of waiting for detection for the fixed point;

[0021] S4, starting the hydraulic hollow jack through the controller, so that the movable end of the hollow jack drives the pull rod to move, and the pull rod drives the fixed point through the clamp of the hydraulic clamp, and the tension data generated by the hollow jack is transmitted to the controller in real time. When the tension data received by the controller is smaller than the tension value received before, the controller controls the hollow jack to stop running, and the controller transmits the received tension data to the computer, and the computer displays the received force value data in real time and forms a force value curve graph;

[0022] S5. Loosen the clamp of the hydraulic fixture through the controller to separate the detection component from the fixed point, and then test other fixed points again.

[0023] Compared with the prior art, the detection device for fixed point shear test and the use method thereof provided by the present invention have the following beneficial effects:

[0024] 1. The present invention clamps the fixed point by a hydraulic clamp, so that the pull rod cooperates with the auxiliary support frame to pre-support the reaction tube and the reaction plate on the structure, and after aligning the pull rod with the corresponding auxiliary line, the reaction tube is pushed to the side end face of the structure, so that the attachment plate is on the end face of the structure, and then the adjusting nut is adjusted to the movable end of the hollow jack to perform a shear test on the fixed point. By clamping the fixed point instead of the traditional inclined support plate anchor, while achieving the same reaction support effect, there are no extra drill holes on the surface of the structure for fixing the reaction plate. Compared with traditional structures of the same area, the surface of the structure contains more fixed point test points, so that the structure is effectively utilized, and there is no need for operators to install or disassemble the inclined support plate on the structure, which saves time for continuous disassembly and assembly of multiple fixed point testing and detection devices, and brings convenience to operators.

[0025] 2. The reaction tube provided in the present invention is hollow, and its hollow part is connected to the X-shaped bracket, so that the reaction tube has high strength and is not easy to bend and deform, and provides strong multi-directional support for the reaction tube. The base of the hollow jack is inserted into the matching hole through the provided matching hole, so that the X-shaped bracket and the reaction tube provide effective support for the hollow jack, thereby ensuring the stability of the pull rod driven by it, and while the bolts serve to fix the reaction plate, their bolt heads also contact the base of the hollow jack, so that the hollow jack is clamped by the two groups of bolts symmetrically arranged on the reaction tube, further ensuring the connection stability between the hollow jack and the reaction tube, the reaction tube has a long service life, and the tooling steps of the reaction tube and the hollow jack are simple, which is convenient for the subsequent inspection and maintenance of the tooling parts.

[0026] 3. The hollow jack of the present invention abuts against the middle part of the X-shaped bracket. The X-shaped bracket is located at the matching hole and cooperates with the tube wall on one side of the reaction tube to embrace and limit the cylinder body of the hollow jack. The X-shaped bracket is located at the through hole and cooperates with the tube wall on the other side of the reaction tube to provide triangular reaction support for the base of the hollow jack, so that the X-shaped bracket can provide stability support for the hollow jack.

[0027] 4. The present invention arranges a spring accordion cover on the connecting ring so that when the hydraulic clamp clamps the fixed point through the chuck, one end of the spring accordion cover contacts the surface of the structure to surround the fixed point and the chuck. When the fixed point shear test is performed, the collapsed structure debris is blocked by the spring accordion cover and will not splash to the outside, thereby protecting the staff and surrounding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A three-dimensional diagram of a detection device for fixed point shear test of the present invention;

[0030] Figure 2 A top view of a detection device for fixed point shear test according to the present invention;

[0031] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 It is a front view of a detection device for fixed point shear test of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of a detection component of a detection device for fixed point shear resistance test of the present invention;

[0034] Figure 6 It is an exploded schematic diagram of a detection component of a detection device for fixed point shear resistance test of the present invention;

[0035] Figure 7 This is a schematic diagram of the connection between a reaction tube and an X-shaped bracket of a detection device for fixed point shear test of the present invention;

[0036] Figure 8 This is a schematic diagram of the matching holes and through holes on a reaction tube of a detection device for fixed point shear test of the present invention;

[0037] Fig. 9 This is a schematic diagram of the overall structure of a reaction tube and an X-shaped bracket of a detection device for fixed point shear resistance test of the present invention;

[0038] Fig.10 A cross-sectional view of a detection device for fixed point shear test of the present invention;

[0039] Fig.11 It is a schematic diagram of the position state of the reaction force tube of the detection device for fixed point shear test of the present invention;

[0040] The names of the components corresponding to the various figure marks in the figure are: 1. Structure; 2. Reaction tube; 201. X-shaped bracket; 202. Matching hole; 203. Through hole; 204. Bolt hole; 3. Hydraulic clamp; 4. Pull rod; 401. Connecting ring; 402. Spring accordion cover; 5. Hollow jack; 501. Base; 6. Reaction plate; 601. Connecting hole; 602. Attachment plate; 603. Bolt; 7. Adjusting nut; 8. Auxiliary support frame; 9. Fixing point. DETAILED DESCRIPTION

[0041] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0043] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0044] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0045] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0046] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0047] See also Figures 1 to 11The present invention provides a detection device for fixed point shear test and a method for using the same, comprising a structure 1, on which a plurality of test points are evenly spaced; a fixed point 9, which is fixed to any test point on the structure 1; a detection component, which comprises a hydraulic clamp 3 connected to the fixed point 9, on which a connecting ring 401 is sleeved, and the connecting ring 401 is connected to a pull rod 4, and the pull rod 4 is slidably connected to an auxiliary support frame 8 and a reaction tube 2, and the reaction tube 2 is connected to a hollow jack 5 and a reaction plate 6, and the detection component clamps or releases the fixed point 9 through the hydraulic clamp 3 connected to the pull rod 4;

[0048] The reaction tube 2 is in a rectangular hollow structure, and an X-shaped bracket 201 is connected to the hollow inner wall of the reaction tube 2. Matching holes 202 are provided on the reaction tube 2 and the X-shaped bracket 201. The base 501 of the hollow jack 5 is placed in the matching hole 202. The base 501 of the hollow jack 5 contacts the middle part of the X-shaped bracket 201. The reaction tube 2 and the X-shaped bracket 201 limit the hollow jack 5 through the matching hole 202.

[0049] A through hole 203 connected to the matching hole 202 is also provided on the reaction tube 2 and the X-shaped bracket 201. The end of the pull rod 4 away from the hydraulic clamp 3 passes through the through hole 203 and is connected to the movable end of the hollow jack 5. The pull rod 4 is a screw rod, and the clamping part of the hydraulic clamp 3 is made of tungsten steel. The pull rod 4 is threadedly connected with an adjusting nut 7, which is in contact with the movable end of the hollow jack 5.

[0050] See also Figures 2 to 10 Two groups of bolt holes 204 are symmetrically opened on the reaction tube 2, the reaction plate 6 is in a right-angle trapezoidal shape, and a connecting hole 601 corresponding to the bolt hole 204 is opened on the reaction plate 6. The reaction tube 2 and the reaction plate 6 are connected with bolts 603 through the bolt holes 204 and the connecting holes 601. One end of the bolt 603 is located between the reaction tube 2 and the X-shaped bracket 201 and contacts the base 501 of the hollow jack 5.

[0051] See also Figures 3 to 10 The reaction plate 6 is provided with an attachment plate 602 which cooperates with the end face of the structure 1, and a chamfer is provided on the reaction plate 6. The reaction tube 2 cooperates with the side end face of the structure 1, and the angle between the plate surface of the attachment plate 602 and the plate surface of the reaction plate 6 is 90°. The auxiliary support frame 8 is located between the hydraulic clamp 3 and the reaction tube 2. The bolt diameter of the bolt 603 is larger than the bolt body diameter of the fixed point 9. The lower end of the connecting ring 401 is connected with a spring accordion cover 402, and the spring accordion cover 402 is arranged on the outside of the clamping head of the hydraulic clamp 3. When the clamping head of the hydraulic clamp 3 clamps the fixed point 9, one end of the spring accordion cover 402 contacts the end face of the structure 1.

[0052] See also Figures 1 to 11, a method for using a detection device for fixed point shear testing, comprising:

[0053] S1. A rectangular structure 1 with a size of 1m×1m is formed by pouring concrete in a mold. A horizontal and vertical auxiliary line is drawn with an ink fountain at equal intervals on the structure 1, so that multiple auxiliary lines on the end surface of the structure 1 form multiple evenly distributed intersections. The interval between each two adjacent intersections is the same and not less than 10cm. Any intersection is used as a detection point for bolt anchoring to form a fixed point 9;

[0054] S2. Align the clamp of the hydraulic clamp 3 with the fixed point 9 to perform a clamping operation, so that one end of the spring accordion cover 402 contacts the structure 1, and the pull rod 4 corresponds to the corresponding auxiliary line. Adjust the position of the auxiliary support frame 8 on the pull rod 4, so that the auxiliary support frame 8 is close to the midpoint between the fixed point 9 and the side end of the structure 1, so that the detection component is fixedly supported on the structure 1, and the bottom end surface of the attachment plate 602 is basically flush with the end surface of the structure 1;

[0055] S3, push the reaction tube 2 and the reaction plate 6 onto the structure 1 along the axial direction of the tie rod 4, so that the reaction tube 2 contacts the side end surface of the structure 1, and the reaction plate 6 contacts the upper end surface of the structure 1, and adjust the adjustment nut 7 on the tie rod 4, so that the adjustment nut 7 contacts the movable end of the hollow jack 5, and the detection assembly is in a state of waiting for detection for the fixed point 9;

[0056] S4, start the hydraulic hollow jack 5 through the controller, so that the movable end of the hollow jack 5 drives the pull rod 4 to move, and the pull rod 4 drives the fixed point 9 through the clamp of the hydraulic clamp 3, and the tension data generated by the hollow jack 5 is transmitted to the controller in real time. When the tension data received by the controller is smaller than the tension value received before, the controller controls the hollow jack 5 to stop running, and the controller transmits the received tension data to the computer, and the computer displays the received force value data in real time and forms a force value curve graph;

[0057] S5. Loosen the clamp of the hydraulic clamp 3 through the controller to separate the detection component from the fixed point 9, and then test other fixed points 9 again.

[0058] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A detection device for fixed point shear test, characterized in that: include: A structure (1), wherein a plurality of test points are evenly spaced on the structure (1); A fixing point (9), wherein the fixing point (9) is fixed to any of the test points on the structure (1); A detection component, the detection component comprising a hydraulic clamp (3) connected to a fixed point (9), the hydraulic clamp (3) being provided with a connecting ring (401), the connecting ring (401) being connected to a pull rod (4), the pull rod (4) being slidably connected to an auxiliary support frame (8) and a reaction force tube (2), the reaction force tube (2) being connected to a hollow jack (5) and a reaction force plate (6), the detection component clamping or releasing the fixed point (9) through the hydraulic clamp (3) connected to the pull rod (4); A reaction tube (2), the reaction tube (2) being in the shape of a rectangular hollow structure, the hollow inner wall of the reaction tube (2) being connected to an X-shaped bracket (201), the reaction tube (2) and the X-shaped bracket (201) being provided with matching holes (202), the base (501) of the hollow jack (5) being placed in the matching hole (202), the base (501) of the hollow jack (5) being in contact with the middle of the X-shaped bracket (201), and the reaction tube (2) and the X-shaped bracket (201) limiting the position of the hollow jack (5) through the matching hole (202); The reaction tube (2) and the X-shaped bracket (201) are also provided with a through hole (203) connected to the matching hole (202); the end of the pull rod (4) away from the hydraulic clamp (3) passes through the through hole (203) and is connected to the movable end of the hollow jack (5); The reaction plate (6) is provided with an attachment plate (602) that matches the end surface of the structure (1), the reaction plate (6) is provided with a chamfer, the reaction tube (2) matches the side end surface of the structure (1), and the angle between the plate surface of the attachment plate (602) and the plate surface of the reaction plate (6) is 90°; The lower end of the connecting ring (401) is connected to a spring accordion cover (402), and the spring accordion cover (402) is arranged outside the clamping head of the hydraulic clamp (3). When the clamping head of the hydraulic clamp (3) clamps the fixed point (9), one end of the spring accordion cover (402) contacts the end surface of the structure (1); The pull rod (4) is a screw rod, the clamping part of the hydraulic clamp (3) is made of tungsten steel, the pull rod (4) is threadedly connected with an adjusting nut (7), and the adjusting nut (7) is in abutment with the movable end of the hollow jack (5); The reaction tube (2) is symmetrically provided with two groups of bolt holes (204); the reaction plate (6) is in the shape of a right-angled trapezoid; the reaction plate (6) is provided with connection holes (601) corresponding to the bolt holes (204); the reaction tube (2) and the reaction plate (6) are connected with bolts (603) via the bolt holes (204) and the connection holes (601); one end of the bolt (603) is located between the reaction tube (2) and the X-shaped bracket (201) and contacts the base of the hollow jack (5).

2. The detection device for fixed point shear test according to claim 1, characterized in that: The auxiliary support frame (8) is located between the hydraulic clamp (3) and the reaction force tube (2), and the bolt diameter of the bolt (603) is greater than the bolt body diameter of the fixing point (9).

3. A method for using a detection device for fixed point shear test, applied to the detection device for fixed point shear test as claimed in any one of claims 1 to 2, characterized in that: include: S1. A rectangular structure (1) with a size of 1 m×1 m is formed by pouring concrete in a mold. A horizontal and vertical auxiliary line is drawn with an ink fountain at equal intervals on the structure (1), so that multiple auxiliary lines on the end surface of the structure (1) form multiple evenly distributed intersections, and the interval between each two adjacent intersections is the same and not less than 10 cm. Any intersection is used as a detection point for bolt anchoring to form a fixed point (9); S2. Align the clamping head of the hydraulic clamp (3) with the fixed point (9) to perform a clamping operation, so that one end of the spring accordion cover (402) contacts the structure (1), so that the pull rod (4) corresponds to the corresponding auxiliary line, and adjust the position of the auxiliary support frame (8) on the pull rod (4) so ​​that the auxiliary support frame (8) is close to the midpoint between the fixed point (9) and the side end of the structure (1), so that the detection component is fixedly supported on the structure (1), and the bottom end surface of the attachment plate (602) is basically flush with the end surface of the structure (1); S3, pushing the reaction tube (2) and the reaction plate (6) onto the structure (1) along the axial direction of the pull rod (4), so that the reaction tube (2) contacts the side end surface of the structure (1), and the reaction plate (6) contacts the upper end surface of the structure (1), and adjusting the adjustment nut (7) on the pull rod (4) so ​​that the adjustment nut (7) contacts the movable end of the hollow jack (5), at which time the detection assembly is in a state to be detected relative to the fixed point (9); S4, starting the hydraulic hollow jack (5) through the controller, so that the movable end of the hollow jack (5) drives the pull rod (4) to move, and the pull rod (4) drives the fixed point (9) through the clamp of the hydraulic clamp (3), and the tension data generated by the hollow jack (5) is transmitted to the controller in real time. When the tension data received by the controller is smaller than the tension value received before, the controller controls the hollow jack (5) to stop running, and the controller transmits the received tension data to the computer, and the computer displays the received force value data in real time and forms a force value curve graph; S5. The clamp of the hydraulic clamp (3) is loosened through the controller to separate the detection component from the fixed point (9), and the test of other fixed points (9) can be carried out again.

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