A step loading and unloading tensile tester

Abstract

The utility model discloses a kind of hierarchical loading, hierarchical unloading drawing instrument, belong to drawing instrument technical field, its technical scheme main point includes device ontology and preloading frame, the top of the device ontology is provided with protection assembly, the side of preloading frame close to device ontology is connected with device ontology, the side of preloading frame away from device ontology is provided with movable block, the surface of movable block is connected with support mechanism, the side of support mechanism away from device ontology is connected with anti-bending assembly, when using, the drawing instrument of existing hierarchical loading, hierarchical unloading drawing instrument is easy to be bumped by outside, leading to component damage, affect measurement accuracy and equipment normal operation, simultaneously, the valve connecting pipeline of drawing instrument lacks effective support protection, easy to bend, cause medium flow to be blocked, pressure transmission is unstable, further affect the accuracy and reliability of drawing instrument hierarchical loading and unloading function.

Description

Technical Field

[0001] This utility model relates to the field of pull-out apparatus technology, and in particular to a graded loading and graded unloading pull-out apparatus. Background Technology

[0002] The graded loading and unloading pull-out tester is an instrument used for testing the mechanical properties of materials or structures. It applies increasing or decreasing pull-out forces to the test object in sequence according to preset load levels through a set program or manual control. During the loading or unloading process, it monitors and records data such as load and displacement in real time to accurately evaluate the mechanical indicators of the test object, such as bond strength, anchorage performance, or pull-out bearing capacity. It is suitable for pull-out tests of components such as steel bars, anchor rods, and anchor bolts in fields such as building engineering and geotechnical engineering. It features controllable loading process, accurate data acquisition, and standardized operation procedures.

[0003] Existing conventional anchor bolt pull-out instruments can only perform loading control, while anchor bolt pull-out instruments that can perform unloading control are generally used with servo control systems, making these devices large and heavy, and unsuitable for field testing.

[0004] An existing patent (publication number: CN208476655U) discloses a portable anchor bolt pull-out instrument with unloading control, including a three-way connector. One end of the three-way connector is connected to the inlet and outlet of a jack via a second pipeline; the other end of the three-way connector is connected to the outlet of a manual pump via a first pipeline; the last end of the three-way connector is connected to the inlet of an overflow valve via a third pipeline; and the outlet of the overflow valve is connected to the return port of the manual pump via a fourth pipeline. Through the above device, the entire process control of the anchor bolt pull-out test is realized, completely solving the problem of "unloading to the bottom" in existing anchor bolt pull-out instruments. At the same time, this utility model adds an overflow valve to the traditional pull-out instrument to solve the unloading control problem without significantly increasing the size and weight, retaining the portability advantage of existing pull-out instruments.

[0005] To address the aforementioned issues, existing patents offer solutions. However, existing graded loading and unloading pull-out instruments are susceptible to external impacts during use, leading to component damage, affecting measurement accuracy and normal equipment operation. Furthermore, the valve connection pipelines of the pull-out instruments lack effective support and protection, making them prone to bending, which obstructs media flow and causes unstable pressure transmission, thereby affecting the accuracy and reliability of the graded loading and unloading functions of the pull-out instruments.

[0006] To address this, a graded loading and unloading pull-out device is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a graded loading and unloading pull-out apparatus that can solve the problems of existing graded loading and unloading pull-out apparatuses, which are easily damaged by external impacts during use, affecting measurement accuracy and normal operation of the equipment. At the same time, the valve connection pipeline of the pull-out apparatus lacks effective support and protection, and is prone to bending, which obstructs the flow of medium and causes unstable pressure transmission, thereby affecting the accuracy and reliability of the graded loading and unloading function of the pull-out apparatus.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a graded loading and unloading pull-out device, comprising a device body and a pre-mounted frame, wherein a protective component is provided on the top of the device body, the pre-mounted frame is bolted to the device body on the side close to the device body, a movable block is provided on the side of the pre-mounted frame away from the device body, a support mechanism is bolted to the surface of the movable block, and an anti-bending component is bolted to the side of the support mechanism away from the device body.

[0009] The support mechanism includes a connecting block, a connecting plate, and a placement frame. The bottom of the placement frame is bolted to the top of the connecting plate. The side of the connecting plate near the connecting block is bolted to the connecting block. The inner wall of the connecting block is bolted to the surface of the movable block.

[0010] Preferably, an adjustment frame is movably connected to the surface of the movable block, and an insert block is bolted to the side of the adjustment frame closest to the device body.

[0011] Preferably, the surface of the insert block engages with the inner wall of the pre-assembly frame, and the inner wall of the pre-assembly frame has a slot for use with the insert block.

[0012] Preferably, a knob is movably connected to the inner wall of the adjusting frame, and the surface of the knob is threadedly connected to the inner wall of the movable block.

[0013] Preferably, a torsion bar is welded to the top of the knob, and a threaded hole is provided on the inner wall of the movable block to cooperate with the knob.

[0014] Preferably, the inner wall of the adjustment frame is provided with an adjustment groove for use with the knob, and the inner wall of the adjustment frame is provided with a movable groove for use with the movable block.

[0015] Preferably, the anti-bending component includes a fixing block and an anti-bending frame, wherein the side of the anti-bending frame near the fixing block is bolted to the fixing block, and the side of the fixing block near the connecting plate is bolted to the connecting plate.

[0016] Preferably, the inner wall of the placement rack is rotatably connected to a rotating assembly, and a limiting assembly is bolted to the top of the rotating assembly.

[0017] Preferably, the inner wall of the limiting component is movably connected with a bolt, and the surface of the bolt is threadedly connected to the inner wall of the placement frame.

[0018] Preferably, a fixing plate is bolted to the top of the device body, a protective rod is bolted to the top of the fixing plate, and the inner wall of the protective component is bolted to the surface of the protective rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This application sets up a support mechanism, which fixes the pipeline in place by connecting the connecting block and connecting plate, and then fixes the connecting plate to the placement frame. This facilitates the initial placement of the pipeline by the placement frame. Then, the anti-bending component is fixed to the connecting plate to prevent the pipeline from bending during use. This prevents problems such as poor flow of hydraulic oil or other media and abnormal pressure transmission caused by pipeline bending, and ensures the stability and accuracy of pressure transmission during staged loading and unloading.

[0021] 2. By setting up a protective component, this application can effectively prevent external objects from bumping and damaging the valve part of the equipment body during use, reduce the risk of damage to the equipment body parts due to mechanical collision, and improve the stability of the equipment body. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the graded loading and unloading pull-out device of this utility model;

[0023] Figure 2 This is a structural diagram of the pre-assembly frame of this utility model;

[0024] Figure 3 This is a structural diagram of the adjustment frame of this utility model;

[0025] Figure 4 This is a structural diagram of the support mechanism of this utility model;

[0026] Figure 5 This is a structural diagram of the anti-bending component of this utility model;

[0027] Figure 6 This is a structural diagram of the protective component of this utility model.

[0028] In the diagram, 1. Equipment body; 2. Support mechanism; 201. Connecting block; 202. Connecting plate; 203. Placement rack; 3. Anti-bending component; 301. Fixing block; 302. Anti-bending frame; 4. Pre-assembly rack; 5. Protective component; 6. Movable block; 7. Adjusting frame; 8. Insert block; 9. Slot; 10. Knob; 11. Torsion bar; 12. Threaded hole; 13. Adjusting groove; 14. Movable groove; 15. Rotating component; 16. Limiting component; 17. Bolt; 18. Fixing plate; 19. Protective rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 The present invention provides the following technical solution:

[0031] A graded loading and unloading pull-out device includes a device body 1 and a pre-mounted frame 4. A protective component 5 is provided on the top of the device body 1. The pre-mounted frame 4 is bolted to the device body 1 on the side close to the device body 1. A movable block 6 is provided on the side of the pre-mounted frame 4 away from the device body 1. A support mechanism 2 is bolted to the surface of the movable block 6. An anti-bending component 3 is bolted to the side of the support mechanism 2 away from the device body 1.

[0032] The support mechanism 2 includes a connecting block 201, a connecting plate 202, and a placement rack 203. The bottom of the placement rack 203 is bolted to the top of the connecting plate 202. The side of the connecting plate 202 near the connecting block 201 is bolted to the connecting block 201. The inner wall of the connecting block 201 is bolted to the surface of the movable block 6.

[0033] In this embodiment: By setting up a support mechanism 2, the connection block 201 is fixed to the position of the connection plate 202 during use, and the connection plate 202 is fixed to the position of the placement rack 203, which facilitates the subsequent initial placement of the pipeline by the placement rack 203. Then, the anti-bending component 3 is fixed to the position of the connection plate 202 to prevent the pipeline from bending during use, and to prevent problems such as poor flow of hydraulic oil or other media and abnormal pressure transmission caused by pipeline bending, thus ensuring the stability and accuracy of pressure transmission during the staged loading and unloading process. By setting up a protective component 5, which is set on the top of the equipment body 1 during use, it can effectively prevent external objects from causing collision damage to the valve part of the equipment body 1, reduce the risk of damage to the parts of the equipment body 1 due to mechanical collision, and improve the stability of the equipment body 1.

[0034] Specifically, such as Figure 3 As shown, an adjustment frame 7 is movably connected to the surface of the movable block 6, and an insert block 8 is bolted to the side of the adjustment frame 7 closest to the equipment body 1.

[0035] Specifically, such as Figure 3 As shown, the surface of the insert 8 engages with the inner wall of the pre-assembly frame 4, and the inner wall of the pre-assembly frame 4 has a slot 9 for use with the insert 8.

[0036] Specifically, such as Figure 3 As shown, a knob 10 is movably connected to the inner wall of the adjusting frame 7, and the surface of the knob 10 is threadedly connected to the inner wall of the movable block 6.

[0037] In this embodiment: by setting an adjustment frame 7 and a plug 8, the position of the adjustment frame 7 and the plug 8 is fixed during use, so that the adjustment frame 7 can drive the plug 8 to insert into the inner wall of the pre-installation frame 4, which facilitates the installation of the adjustment frame 7. Then, the movable block 6 slides on the inner wall of the adjustment frame 7, which facilitates the flexible adjustment of the placement position of the placement frame 203. The plug 8 is inserted into the inner wall of the pre-installation frame 4 through the slot 9 opened in the inner wall of the pre-installation frame 4. By setting a knob 10, the movable block 6 is restricted to the inner wall of the adjustment frame 7 during use, which facilitates the subsequent management and stable placement of the placement frame 203.

[0038] Specifically, such as Figure 3 As shown, a torsion bar 11 is welded to the top of the knob 10, and a threaded hole 12 for use with the knob 10 is opened on the inner wall of the movable block 6.

[0039] Specifically, such as Figure 3 As shown, the inner wall of the adjustment frame 7 is provided with an adjustment groove 13 that works in conjunction with the knob 10, and the inner wall of the adjustment frame 7 is provided with a movable groove 14 that works in conjunction with the movable block 6.

[0040] In this embodiment: by setting a torsion bar 11, the position of the torsion bar 11 and the knob 10 is fixed during use, which facilitates the subsequent rotation of the knob 10 on the inner wall of the adjusting frame 7 and the movable block 6 by the torsion bar 11, and facilitates the limiting work of the movable block 6. The adjusting groove 13 opened on the inner wall of the adjusting frame 7 facilitates the movement of the knob 10 on the inner wall of the adjusting frame 7 through the adjusting groove 13. The movable block 6 is facilitated to move on the inner wall of the adjusting frame 7 through the movable groove 14 opened on the inner wall of the adjusting frame 7.

[0041] Specifically, such as Figure 5 As shown, the anti-bending assembly 3 includes a fixing block 301 and an anti-bending frame 302. The side of the anti-bending frame 302 near the fixing block 301 is bolted to the fixing block 301, and the side of the fixing block 301 near the connecting plate 202 is bolted to the connecting plate 202.

[0042] Specifically, such as Figure 4 As shown, a rotating assembly 15 is rotatably connected to the inner wall of the placement rack 203, and a limiting assembly 16 is bolted to the top of the rotating assembly 15.

[0043] Specifically, such as Figure 4 As shown, the inner wall of the limiting component 16 is movably connected with a bolt 17, and the surface of the bolt 17 is threadedly connected to the inner wall of the placement bracket 203.

[0044] Specifically, such as Figure 6 As shown, a fixing plate 18 is bolted to the top of the equipment body 1, and a protective rod 19 is bolted to the top of the fixing plate 18. The inner wall of the protective component 5 is bolted to the surface of the protective rod 19.

[0045] In this embodiment: By setting a fixing block 301 and an anti-bending frame 302, the fixing block 301 and the anti-bending frame 302 are fixed in use, which facilitates the anti-bending frame 302 to further enhance the protection of the pipeline against bending. By setting a rotating component 15 and a limiting component 16, the limiting component 16 and the rotating component 15 are fixed in use, which facilitates the subsequent rotation of the rotating component 15 on the inner wall of the placement frame 203 by the limiting component 16, which facilitates the opening and closing of the limiting component 16. When the pipeline is placed on the inner wall of the placement frame 203, the bolts 17 are used to rotate the limiting component 16 and the inner wall of the placement frame 203, which facilitates the stable installation of the pipeline and facilitates the installation and disassembly of the pipeline. By setting a fixing plate 18 and a protective rod 19, the fixing plate 18 and the protective rod 19 are fixed in use, and the protective component 5 and the protective rod 19 are fixed in use, which facilitates the protection of key parts such as the valve on the top of the equipment body 1 from external impacts and improves the overall protection performance of the equipment body 1.

[0046] Working principle: During the use of the equipment body 1 and the pre-installation frame 4, the support mechanism 2 is set up. During use, the connecting block 201 is fixed to the position of the connecting plate 202, and the connecting plate 202 is fixed to the position of the placement frame 203. This facilitates the initial placement of the pipeline by the placement frame 203. Then, the anti-bending component 3 is fixed to the position of the connecting plate 202 to prevent the pipeline from bending during use. This prevents problems such as poor flow of hydraulic oil or other media and abnormal pressure transmission caused by pipeline bending, ensuring the stability and accuracy of pressure transmission during staged loading and unloading. By setting up the protective component 5, which is set on the top of the equipment body 1 during use, it can effectively prevent external objects from causing impact damage to the valve parts of the equipment body 1, reduce the risk of damage to the components of the equipment body 1 due to mechanical collision, and improve the stability of the equipment body 1.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A graded loading and unloading pull-out device, comprising a device body (1) and a pre-mounted frame (4), characterized in that: The top of the equipment body (1) is provided with a protective component (5), the pre-installation frame (4) is bolted to the equipment body (1) on the side close to the equipment body (1), the pre-installation frame (4) is provided with a movable block (6) on the side away from the equipment body (1), the surface of the movable block (6) is bolted with a support mechanism (2), and the side of the support mechanism (2) away from the equipment body (1) is bolted with an anti-bending component (3). The support mechanism (2) includes a connecting block (201), a connecting plate (202), and a placement rack (203). The bottom of the placement rack (203) is bolted to the top of the connecting plate (202). The side of the connecting plate (202) near the connecting block (201) is bolted to the connecting block (201). The inner wall of the connecting block (201) is bolted to the surface of the movable block (6).

2. The graded loading and unloading pull-out device according to claim 1, characterized in that: The surface of the movable block (6) is movably connected to an adjustment frame (7), and an insert block (8) is bolted to the side of the adjustment frame (7) near the equipment body (1).

3. The graded loading and unloading pull-out device according to claim 2, characterized in that: The surface of the insert (8) engages with the inner wall of the pre-mount frame (4), and the inner wall of the pre-mount frame (4) is provided with a slot (9) for use with the insert (8).

4. The graded loading and unloading pull-out device according to claim 2, characterized in that: The inner wall of the adjustment frame (7) is movably connected to a knob (10), and the surface of the knob (10) is threadedly connected to the inner wall of the movable block (6).

5. A graded loading and unloading pull-out device according to claim 4, characterized in that: A torsion bar (11) is welded to the top of the knob (10), and a threaded hole (12) for use with the knob (10) is provided on the inner wall of the movable block (6).

6. The graded loading and unloading pull-out device according to claim 4, characterized in that: The inner wall of the adjustment frame (7) is provided with an adjustment groove (13) for use with the knob (10), and the inner wall of the adjustment frame (7) is provided with an movable groove (14) for use with the movable block (6).

7. The graded loading and unloading pull-out device according to claim 1, characterized in that: The anti-bending component (3) includes a fixing block (301) and an anti-bending frame (302). The anti-bending frame (302) is bolted to the fixing block (301) on the side near the fixing block (301), and the fixing block (301) is bolted to the connecting plate (202) on the side near the connecting plate (202).

8. The graded loading and unloading pull-out device according to claim 1, characterized in that: The inner wall of the placement rack (203) is rotatably connected to a rotating assembly (15), and a limiting assembly (16) is bolted to the top of the rotating assembly (15).

9. A graded loading and unloading pull-out device according to claim 8, characterized in that: The inner wall of the limiting component (16) is movably connected with a bolt (17), the surface of which is threadedly connected to the inner wall of the placement frame (203).

10. A graded loading and unloading pull-out device according to claim 1, characterized in that: A fixing plate (18) is bolted to the top of the equipment body (1), and a protective rod (19) is bolted to the top of the fixing plate (18). The inner wall of the protective component (5) is bolted to the surface of the protective rod (19).

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