Anchoring type anti-pulling static load test counter-force device

Abstract

The invention provides an anchoring type anti-pulling static load test counter-force device, and relates to the technical field of pile foundation detection. The auxiliary unit is mounted on the counter-force unit; the number of the positioning units is four, and the four positioning units are installed on the left side and the right side of the counter-force unit. The number of the limiting units is two, and the two limiting units are installed on the counter-force unit and used for limiting the opened auxiliary unit. The number of the elastic supporting units is two, and the two elastic supporting units are installed on the counter-force unit. The number of the anti-loosening units is four, and the four anti-loosening units are installed on the left sides and the right sides of the two elastic supporting units. By arranging the four auxiliary supporting plates, the contact area with the ground is increased, and the using stability of the device is improved; the problems that due to the fact that an auxiliary supporting structure is generally lacked, the contact area with the ground is small, and the using stability of the device is reduced are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of pile foundation detection, and more specifically, particularly relates to an anchored anti-pulling static load test reaction force device. Background Art

[0002] Project quality inspection is a necessary means to ensure the quality of construction projects. During the construction process, a single pile vertical pullout static load test is usually carried out. The vertical pullout force is applied step by step to the top of the pile through jacks, steel beams and connecting mechanisms. The pull-out displacement of the pile top is observed over time to determine the corresponding single pile vertical pull-out ultimate bearing capacity and to determine whether the vertical pull-out bearing capacity meets the design requirements.

[0003] The anchored pull-out static load test reaction devices currently in use still have the following problems: 1. They usually lack auxiliary support structures, resulting in a smaller contact area with the ground, reducing the stability of the device during use; 2. The steel bar clamps are generally fixedly installed on the output shaft of the jack, and the steel bar clamps cannot be properly replaced according to test requirements, resulting in poor universal effects when used under different models. Summary of the invention

[0004] The disclosed embodiment relates to an anchored pull-out static load test reaction force device, which comprises a reaction force unit, an auxiliary unit, a positioning unit, a limit unit, an elastic support unit and an anti-loosening unit; the provision of four auxiliary support plates increases the contact area with the ground and improves the stability of the device during use; it is convenient for staff to replace appropriate steel bar clamps according to test requirements, and it has higher versatility when used under different models; it solves the problems of insufficient reaction force and inability to appropriately replace the steel bar clamps according to test pile type requirements.

[0005] In a first aspect of the present disclosure, an anchored anti-pulling static load test reaction device is provided, comprising: a reaction unit, an auxiliary unit, a positioning unit, a limit unit, an elastic support unit and an anti-loosening unit; the auxiliary unit is installed on the reaction unit, and the auxiliary unit is used to increase the contact area of ​​the bottom of the reaction unit;

[0006] There are four groups of positioning units, and the four groups of positioning units are installed on the left and right sides of the reaction force unit. The four groups of positioning units are used to position the auxiliary unit after storage; there are two groups of limiting units, and the two groups of limiting units are installed on the reaction force unit. The two groups of limiting units are used to limit the auxiliary unit after opening; there are two groups of elastic support units, and the two groups of elastic support units are installed on the reaction force unit; there are four groups of anti-loosening units, and the four groups of anti-loosening units are installed on the left and right sides of the two groups of elastic support units;

[0007] The reaction force unit includes: a steel beam, a jack, a rectangular guide rod and a steel bar clamp; the steel beam is a rectangular structure, and the rigidity meets the deformation requirements; the jack is installed on the top of the steel beam; there are two rectangular guide rods, and the two rectangular guide rods are fixedly installed on the top of the steel beam, and two rows of limiting inclined grooves are respectively opened on the two rectangular guide rods; the steel bar clamp is slidably installed on the outside of the two rectangular guide rods, and a circle of steel bar clamping grooves is opened on the steel bar clamp, and the bottom of the steel bar clamp is in contact with the output shaft of the jack.

[0008] In at least some embodiments, the auxiliary unit includes: a circular connecting shaft and an auxiliary support plate; there are four circular connecting shafts in total, and the four circular connecting shafts are rotatably installed on the steel beam; there are four auxiliary support plates in total, and the four auxiliary support plates are fixedly installed on the outside of the four circular connecting shafts, and circular positioning holes are respectively opened on the four auxiliary support plates.

[0009] In at least some embodiments, the positioning unit includes: a positioning frame and a positioning rod; the positioning frame is fixedly mounted on a steel beam; the positioning rod is slidably mounted on the positioning frame and the steel beam, and the inner end of the positioning rod is provided with a chamfer, and the positioning rod is inserted into a circular positioning hole.

[0010] In at least some embodiments, the positioning unit also includes: a support retaining ring and a coil spring A; the support retaining ring is fixedly mounted on the outside of the positioning rod, and the inner side of the support retaining ring is in contact with the steel beam; the coil spring A is mounted on the outside of the positioning rod, and the coil spring A is located between the positioning frame and the support retaining ring.

[0011] In at least some embodiments, the limit unit includes: a movable limit block and a reset handle A; there are two movable limit blocks in total, and the two movable limit blocks are slidably installed inside the steel beam; the outer ends of the two movable limit blocks are provided with chamfers, and the distance from the movable limit block to the bottom of the steel beam is the same as the thickness of the auxiliary support plate; there are two reset handles A in total, and the two reset handles A are fixedly installed on the top of the two movable limit blocks, and the two reset handles A are also slidably connected to the steel beam.

[0012] In at least some embodiments, the limiting unit further includes: a coil spring B; three coil springs B are provided in total, and the three coil springs B are installed inside the two movable limiting blocks.

[0013] In at least some embodiments, the elastic support unit includes: a movable connecting sleeve and a mounting handle B; the movable connecting sleeve is slidably mounted on the outside of the rectangular guide rod; there are two mounting handles B, and the two mounting handles B are fixedly mounted on the front and rear sides of the movable connecting sleeve.

[0014] In at least some embodiments, the elastic support unit also includes: a coil spring C and a circular movable plate; the coil spring C is fixedly installed at the bottom of the movable connecting sleeve, and the coil spring C is located outside the rectangular guide rod; the circular movable plate is fixedly installed at the bottom of the coil spring C, and the circular movable plate is slidably connected to the rectangular guide rod, and the bottom of the circular movable plate contacts the top of the steel bar clamp.

[0015] In at least some embodiments, the anti-loosening unit includes: an anti-loosening bracket and a circular movable rod; the anti-loosening bracket is fixedly mounted on the movable connecting sleeve; and the circular movable rod is slidably mounted on the anti-loosening bracket.

[0016] In at least some embodiments, the anti-loosening unit also includes: an anti-loosening limit block and a coil spring D; the anti-loosening limit block is slidably installed on the movable connecting sleeve, and the inner side of the anti-loosening limit block is in contact with a row of limiting inclined grooves; the coil spring D is installed on the outside of the circular movable rod, and the coil spring D is located between the anti-loosening bracket and the anti-loosening limit block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, when the staff pulls the four positioning rods outward, the four positioning rods can be separated from the four circular positioning holes; at this time, the four movable limit blocks can push the four auxiliary support plates to flip outward, and when the four auxiliary support plates flip outward by 90 degrees, the bottoms of the four movable limit blocks can limit the four auxiliary support plates; the arrangement of the four auxiliary support plates increases the contact area with the ground and improves the stability of the device when in use;

[0019] In addition, when the auxiliary support plate needs to be folded and stored, the staff first pulls the positioning rod outward, then pushes the reset handle A, then flips the auxiliary support plate inward ninety degrees, and then releases the positioning rod so that the positioning rod is inserted into the circular positioning hole, reducing the occupied space and facilitating turnover.

[0020] 2. The present invention provides two circular movable plates to achieve an elastic limiting effect on the steel bar clamp, ensuring that the steel bar clamp will not move arbitrarily during turnover. When the jack drives the steel bar clamp to move upward, the steel bar clamp can squeeze the two spiral springs C, which does not affect the test use while achieving an elastic limiting effect.

[0021] In addition, when the two movable connecting sleeves need to be removed, the staff pulls the four circular movable rods outwards with pliers to separate the four anti-loosening limit blocks from the four rows of limit inclined grooves. At this time, the two movable connecting sleeves automatically move upward under the action of the two coil springs C, realizing the automatic separation of the four anti-loosening limit blocks from the four rows of limit inclined grooves.

[0022] In addition, when the two movable connecting sleeves need to be installed, the staff first connects the two circular movable plates with the two rectangular guide rods, and then presses the two movable connecting sleeves downward through the four installation handles B to make the four anti-loosening limit blocks stuck in the appropriate positions of the four rows of limit bevel grooves; it is convenient for the staff to replace the appropriate steel bar clamp according to the test requirements, and it is more versatile when used under different models.

[0023] By using the device, the problem of test interruption due to insufficient reaction force is solved, and the success rate of the test is improved.

[0024] The present invention uses two steel bar clamps and connecting round steel, which plays an important role in ensuring that the reinforcement of the foundation pile is evenly stressed during the reaction device test; the steel bar clamps below the steel beam can be completely anchored into the reinforcement of the foundation pile to ensure that all the stressed reinforcement of the pull-out pile is stressed together; the steel bar clamp on the jack above the steel beam is connected to the steel bar clamp below through the connecting round steel, ensuring that the pull-out force is evenly and stably transmitted to the reaction device, and the test result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0026] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0027] In the attached picture:

[0028] Figure 1 The schematic diagram of the state structure of the present invention when in use is shown.

[0029] Figure 2 The schematic diagram of the structure of the reaction force unit of the present invention is shown.

[0030] Figure 3 The present invention is shown Figure 1 Schematic diagram of the local enlarged structure of area A in the middle.

[0031] Figure 4 The schematic diagram of the structure of the limiting unit of the present invention is shown.

[0032] Figure 5 The present invention is shown Figure 1 Schematic diagram of the central cut structure.

[0033] Figure 6 The present invention is shown Figure 5 Schematic diagram of the cross-section structure in the BB direction.

[0034] Figure 7 The schematic diagram shows the structure of the elastic support unit and two groups of anti-loosening units of the present invention.

[0035] Figure 8The present invention is shown Figure 5 Schematic diagram of the local enlarged structure of the C area in the middle.

[0036] Fig. 9 A three-dimensional structural schematic diagram of the present invention is shown.

[0037] List of reference numerals:

[0038] 1. reaction force unit; 101. steel beam; 102. jack; 103. rectangular guide rod; 1031. limiting inclined slot; 104. steel bar clamp; 1041. steel bar clamp slot;

[0039] 2. Auxiliary unit; 201. Circular connecting shaft; 202. Auxiliary support plate; 2021. Circular positioning hole;

[0040] 3. Positioning unit; 301. Positioning frame; 302. Positioning rod; 303. Support retaining ring; 304. Coil spring A;

[0041] 4. Limiting unit; 401. Movable limiting block; 402. Reset handle A; 403. Coil spring B;

[0042] 5. Elastic support unit; 501. Active connection sleeve; 502. Mounting handle B; 503. Coil spring C; 504. Circular movable plate;

[0043] 6. Anti-loosening unit; 601. Anti-loosening bracket; 602. Round movable rod; 603. Anti-loosening limit block; 604. Coil spring D. DETAILED DESCRIPTION

[0044] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0045] Example: Please refer to Figures 1 to 9 As shown: The present invention provides an anchored anti-pulling static load test reaction device, comprising: a reaction unit 1, an auxiliary unit 2, a positioning unit 3, a limit unit 4, an elastic support unit 5 and an anti-loosening unit 6; the auxiliary unit 2 is installed on the reaction unit 1, and the auxiliary unit 2 is used to increase the contact area of ​​the bottom of the reaction unit 1;

[0046] There are four groups of positioning units 3, and the four groups of positioning units 3 are installed on the left and right sides of the reaction force unit 1, and the four groups of positioning units 3 are used to position the auxiliary unit 2 after storage; there are two groups of limiting units 4, and the two groups of limiting units 4 are installed on the reaction force unit 1, and the two groups of limiting units 4 are used to limit the auxiliary unit 2 after opening; there are two groups of elastic support units 5, and the two groups of elastic support units 5 are installed on the reaction force unit 1; there are four groups of anti-loosening units 6, and the four groups of anti-loosening units 6 are installed on the left and right sides of the two groups of elastic support units 5.

[0047] In the present disclosure, Figure 2 As shown, the reaction unit 1 includes: a steel beam 101, a jack 102, a rectangular guide rod 103 and a steel bar clamp 104; the steel beam 101 is a rectangular parallelepiped structure; the jack 102 is installed on the top of the steel beam 101; there are two rectangular guide rods 103, and the two rectangular guide rods 103 are fixedly installed on the top of the steel beam 101, and two rows of limiting inclined grooves 1031 are respectively opened on the two rectangular guide rods 103; the steel bar clamp 104 is slidably installed on the outside of the two rectangular guide rods 103, and a circle of steel bar clamp grooves 1041 is opened on the steel bar clamp 104, and the bottom of the steel bar clamp 104 is in contact with the output shaft of the jack 102;

[0048] Its specific function is: because the steel bar clamp 104 is slidably installed on the outside of the two rectangular guide rods 103, and a circle of steel bar clamping grooves 1041 are provided on the steel bar clamp 104, and the bottom of the steel bar clamp 104 is in contact with the output shaft of the jack 102, it is convenient for the staff to insert the connecting round steel in the pile to be tested into the circle of steel bar clamping grooves 1041, and at the same time, it is convenient for the staff to replace the steel bar clamp 104 of appropriate size according to the test requirements; among them, when fixing the connecting round steel in the pile to be tested, the staff connects the clamp to the connecting round steel, and it is also necessary to ensure that the clamp after fixing is in contact with the top surface of the steel bar clamp 104, and the length of the steel beam 101 is appropriately adjusted according to the test needs to meet different test requirements.

[0049] In the present disclosure, Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, the auxiliary unit 2 includes: a circular connecting shaft 201 and an auxiliary support plate 202; there are four circular connecting shafts 201, and the four circular connecting shafts 201 are rotatably mounted on the steel beam 101; there are four auxiliary support plates 202, and the four auxiliary support plates 202 are fixedly mounted on the outside of the four circular connecting shafts 201, and the four auxiliary support plates 202 are respectively provided with circular positioning holes 2021;

[0050] The positioning unit 3 includes: a positioning frame 301 and a positioning rod 302; the positioning frame 301 is fixedly mounted on the steel beam 101; the positioning rod 302 is slidably mounted on the positioning frame 301 and the steel beam 101, and the inner end of the positioning rod 302 is provided with a chamfer, and the positioning rod 302 is inserted into the circular positioning hole 2021; the positioning unit 3 also includes: a support retaining ring 303 and a coil spring A304; the support retaining ring 303 is fixedly mounted on the outside of the positioning rod 302, and the inner side of the support retaining ring 303 is in contact with the steel beam 101; the coil spring A304 is mounted on the outside of the positioning rod 302, and the coil spring A304 is located between the positioning frame 301 and the support retaining ring 303;

[0051] The limiting unit 4 includes: a movable limiting block 401 and a reset handle A402; there are two movable limiting blocks 401, and the two movable limiting blocks 401 are slidably installed inside the steel beam 101; the outer ends of the two movable limiting blocks 401 are provided with chamfers, and the distance from the movable limiting blocks 401 to the bottom of the steel beam 101 is the same as the thickness of the auxiliary support plate 202; there are two reset handles A402, and the two reset handles A402 are fixedly installed on the tops of the two movable limiting blocks 401, and the two reset handles A402 are also slidably connected to the steel beam 101; the limiting unit 4 also includes: a coil spring B403; there are three coil springs B403, and the three coil springs B403 are installed inside the two movable limiting blocks 401;

[0052] Its specific function is: because the four positioning rods 302 are inserted into the four circular positioning holes 2021, when the staff pulls the four positioning rods 302 outward, the four positioning rods 302 can be separated from the four circular positioning holes 2021; at this time, the four movable limit blocks 401 can push the four auxiliary support plates 202 to flip outward, and when the four auxiliary support plates 202 flip outward by ninety degrees, the bottom of the four movable limit blocks 401 can limit the four auxiliary support plates 202; the setting of the four auxiliary support plates 202 increases the contact area with the ground and improves the stability of the device when it is used;

[0053] When the auxiliary support plate 202 needs to be folded and stored, the staff first pulls the positioning rod 302 outward, then pushes the reset handle A402, and then flips the auxiliary support plate 202 inward ninety degrees, and then releases the positioning rod 302, so that the positioning rod 302 is inserted into the circular positioning hole 2021, which reduces the occupied space and facilitates turnover; among them, the size of the four auxiliary support plates 202 is appropriately adjusted according to the length of the steel beam 101. When the length of the steel beam 101 becomes longer, the contact area of ​​the four auxiliary support plates 202 after unfolding also increases.

[0054] In the present disclosure, Figure 7 and Figure 8As shown, the elastic support unit 5 includes: a movable connection sleeve 501 and a mounting handle B502; the movable connection sleeve 501 is slidably mounted on the outside of the rectangular guide rod 103; there are two mounting handles B502, and the two mounting handles B502 are fixedly mounted on the front and rear sides of the movable connection sleeve 501; the elastic support unit 5 also includes: a coil spring C503 and a circular movable plate 504; the coil spring C503 is fixedly mounted on the bottom of the movable connection sleeve 501, and the coil spring C503 is located outside the rectangular guide rod 103; the circular movable plate 504 is fixedly mounted on the bottom of the coil spring C503, and the circular movable plate 504 is slidably connected to the rectangular guide rod 103, and the bottom of the circular movable plate 504 is in contact with the top of the steel bar clamp 104;

[0055] The anti-loosening unit 6 includes: an anti-loosening bracket 601 and a circular movable rod 602; the anti-loosening bracket 601 is fixedly mounted on the movable connection sleeve 501; the circular movable rod 602 is slidably mounted on the anti-loosening bracket 601; the anti-loosening unit 6 also includes: an anti-loosening limit block 603 and a coil spring D604; the anti-loosening limit block 603 is slidably mounted on the movable connection sleeve 501, and the inner side of the anti-loosening limit block 603 is in contact with a row of limit inclined grooves 1031; the coil spring D604 is mounted on the outside of the circular movable rod 602, and the coil spring D604 is located between the anti-loosening bracket 601 and the anti-loosening limit block 603;

[0056] Its specific function is as follows: because the two circular movable plates 504 are fixedly mounted on the bottom of the two spiral springs C503, and the two circular movable plates 504 are slidably connected with the two rectangular guide rods 103, and the bottoms of the two circular movable plates 504 are in contact with the top of the steel bar clamping disc 104, the steel bar clamping disc 104 has an elastic limiting effect, ensuring that the steel bar clamping disc 104 will not move arbitrarily during turnover. When the jack 102 drives the steel bar clamping disc 104 to move upward, the steel bar clamping disc 104 can squeeze the two spiral springs C503, and under the premise of having an elastic limiting effect, it does not affect the test use;

[0057] Because the four anti-loosening limit blocks 603 are slidably installed on the two movable connecting sleeves 501, and the inner sides of the four anti-loosening limit blocks 603 are in contact with the four rows of limit inclined grooves 1031, when the two movable connecting sleeves 501 need to be removed, the staff pulls the four circular movable rods 602 outwards with pliers to separate the four anti-loosening limit blocks 603 from the four rows of limit inclined grooves 1031. At this time, the two movable connecting sleeves 501 automatically move upward under the action of the two coil springs C503, realizing the four anti-loosening limit blocks. The limit block 603 is automatically separated from the four rows of limit bevel grooves 1031; when the two movable connecting sleeves 501 need to be installed, the staff first connects the two circular movable plates 504 with the two rectangular guide rods 103, and then presses the two movable connecting sleeves 501 downward through the four installation handles B502 to make the four anti-loosening limit blocks 603 stuck in the appropriate positions of the four rows of limit bevel grooves 1031; it is convenient for the staff to replace the appropriate steel bar clamp 104 according to the test requirements, and it is more versatile when used under different models.

[0058] There are two steel bar clamps: one is located on the jack and the other is located under the steel beam, which are parallel to each other up and down; there are gear-shaped grooves around them, and the connecting round steel is configured according to the force requirements. The two ends of the connecting round steel are toothed and anchored with high-strength bolts when in use.

[0059] The specific usage and function of this embodiment are as follows:

[0060] like Fig. 9 As shown, when the present invention is used, the test personnel install the device at the test pull-out pile. During installation, the tension of the two steel bar clamps connecting the round steel should not be less than the maximum test load. At the same time, ensure that the centroid of the jack coincides with the centroid of the pull-out pile when placing. Then pass the upper end of the foundation pile steel bar through the steel bar clamp groove of the lower steel bar clamp. During the process, pay attention to adjust the verticality of the foundation pile steel bar. The end of the connected round steel bar is fixed with a self-locking anchor and then on the lower steel bar clamp. After installation, preloading can be performed. The role of preloading is to adjust the coordination and synchronization of the entire device. After preloading, check and adjust the anchor at the end of the foundation pile steel bar.

[0061] Then the staff pulls the four positioning rods 302 outwards. When the staff pulls the four positioning rods 302 outwards, the four positioning rods 302 can be separated from the four circular positioning holes 2021. At this time, the four movable limit blocks 401 can push the four auxiliary support plates 202 to flip outwards. When the four auxiliary support plates 202 flip outwards by ninety degrees, the bottoms of the four movable limit blocks 401 can limit the four auxiliary support plates 202. The setting of the four auxiliary support plates 202 increases the contact area with the ground. , which improves the stability of the device when in use; when the auxiliary support plate 202 needs to be folded and stored, the staff first pulls the positioning rod 302 outward, then pushes the reset handle A402, and then turns the auxiliary support plate 202 inward by 90 degrees, and then loosens the positioning rod 302, so that the positioning rod 302 is inserted into the circular positioning hole 2021, which reduces the occupied space and facilitates turnover; the setting of the two circular movable plates 504 has an elastic limiting effect on the steel bar clamping disc 104, ensuring that the steel bar clamping disc 104 will not be arbitrarily moved during turnover When the jack 102 drives the steel bar clamp 104 to move upward, the steel bar clamp 104 can squeeze the two coil springs C503, and under the premise of playing the elastic limiting effect, it does not affect the test use; when the two movable connection sleeves 501 need to be removed, the staff pulls the four circular movable rods 602 outwards with pliers to separate the four anti-loosening limit blocks 603 from the four rows of limit inclined grooves 1031. At this time, the two movable connection sleeves 501 automatically move upward under the action of the two coil springs C503, realizing The four anti-loosening limit blocks 603 are automatically separated from the four rows of limiting bevel grooves 1031; when the two movable connecting sleeves 501 need to be installed, the staff first connects the two circular movable plates 504 with the two rectangular guide rods 103, and then presses the two movable connecting sleeves 501 downward through the four installation handles B502, so that the four anti-loosening limit blocks 603 are stuck in the appropriate positions of the four rows of limiting bevel grooves 1031; it is convenient for the staff to replace the appropriate steel bar clamp 104 according to the test requirements, and it has higher versatility when used under different models.

[0062] In this article, there are a few points to note:

[0063] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0064] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0065] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An anchored pull-out static load test reaction device, comprising: A reaction force unit (1), an auxiliary unit (2), a positioning unit (3), a limit unit (4), an elastic support unit (5) and an anti-loosening unit (6); characterized in that the auxiliary unit (2) is installed on the reaction force unit (1), and the auxiliary unit (2) is used to increase the contact area of ​​the bottom of the reaction force unit (1); The positioning units (3) are provided with four groups in total, and the four groups of positioning units (3) are installed on the left and right sides of the reaction force unit (1), and the four groups of positioning units (3) are used to position the auxiliary unit (2) after being stored; the limiting units (4) are provided with two groups in total, and the two groups of limiting units (4) are installed on the reaction force unit (1), and the two groups of limiting units (4) are used to limit the auxiliary unit (2) after opening; the elastic support units (5) are provided with two groups in total, and the two groups of elastic support units (5) are installed on the reaction force unit (1); the anti-loosening units (6) are provided with four groups in total, and the four groups of anti-loosening units (6) are installed on the left and right sides of the two groups of elastic support units (5); The reaction force unit (1) comprises: a steel beam (101), a jack (102), a rectangular guide rod (103) and a steel bar clamp (104); the steel beam (101) is a rectangular parallelepiped structure; the jack (102) is installed on the top of the steel beam (101); there are two rectangular guide rods (103) in total, and the two rectangular guide rods (103) are fixedly installed on the top of the steel beam (101), and two rows of limiting inclined grooves (1031) are respectively provided on the two rectangular guide rods (103); the steel bar clamp (104) is slidably installed on the outside of the two rectangular guide rods (103), and a circle of steel bar clamp grooves (1041) is provided on the steel bar clamp (104), and the bottom of the steel bar clamp (104) is in contact with the output shaft of the jack (102).

2. The anchored static pull-out test reaction device according to claim 1, characterized in that: The auxiliary unit (2) comprises: a circular connecting shaft (201) and an auxiliary support plate (202); there are four circular connecting shafts (201) in total, and the four circular connecting shafts (201) are rotatably mounted on the steel beam (101); there are four auxiliary support plates (202) in total, and the four auxiliary support plates (202) are fixedly mounted on the outside of the four circular connecting shafts (201), and circular positioning holes (2021) are respectively opened on the four auxiliary support plates (202).

3. The anchored static pull-out test reaction device according to claim 2 is characterized in that: The positioning unit (3) comprises: a positioning frame (301) and a positioning rod (302); the positioning frame (301) is fixedly mounted on the steel beam (101); the positioning rod (302) is slidably mounted on the positioning frame (301) and the steel beam (101), and the inner end of the positioning rod (302) is provided with a chamfer, and the positioning rod (302) is inserted into the circular positioning hole (2021).

4. The anchored static pull-out test reaction device according to claim 3 is characterized in that: The positioning unit (3) further comprises: a support retaining ring (303) and a coil spring A (304); the support retaining ring (303) is fixedly mounted on the outside of the positioning rod (302), and the inner side of the support retaining ring (303) is in contact with the steel beam (101); the coil spring A (304) is mounted on the outside of the positioning rod (302), and the coil spring A (304) is located between the positioning frame (301) and the support retaining ring (303).

5. The anchored static pull-out test reaction device according to claim 2, characterized in that: The limit unit (4) comprises: a movable limit block (401) and a reset handle A (402); two movable limit blocks (401) are provided, and the two movable limit blocks (401) are slidably installed inside the steel beam (101); the outer ends of the two movable limit blocks (401) are provided with chamfers, and the distance from the movable limit blocks (401) to the bottom of the steel beam (101) is the same as the thickness of the auxiliary support plate (202); two reset handles A (402) are provided, and the two reset handles A (402) are fixedly installed on the tops of the two movable limit blocks (401), and the two reset handles A (402) are also slidably connected to the steel beam (101).

6. The anchored static pull-out test reaction device according to claim 5, characterized in that: The limiting unit (4) further comprises: a coil spring B (403); a total of three coil springs B (403) are provided, and the three coil springs B (403) are installed inside the two movable limiting blocks (401).

7. The anchored static pull-out test reaction device according to claim 1, characterized in that: The elastic support unit (5) comprises: a movable connection sleeve (501) and a mounting handle B (502); the movable connection sleeve (501) is slidably mounted on the outside of the rectangular guide rod (103); two mounting handles B (502) are provided, and the two mounting handles B (502) are fixedly mounted on the front and rear sides of the movable connection sleeve (501).

8. The anchored static pull-out test reaction device according to claim 7, characterized in that: The elastic support unit (5) further comprises: a coil spring C (503) and a circular movable plate (504); the coil spring C (503) is fixedly mounted on the bottom of the movable connection sleeve (501), and the coil spring C (503) is located outside the rectangular guide rod (103); the circular movable plate (504) is fixedly mounted on the bottom of the coil spring C (503), and the circular movable plate (504) is slidably connected to the rectangular guide rod (103), and the bottom of the circular movable plate (504) is in contact with the top of the steel bar clamp (104).

9. The anchored static pull-out test reaction device according to claim 7, characterized in that: The anti-loosening unit (6) comprises: an anti-loosening bracket (601) and a circular movable rod (602); the anti-loosening bracket (601) is fixedly mounted on the movable connection sleeve (501); and the circular movable rod (602) is slidably mounted on the anti-loosening bracket (601).

10. An anchored anti-pulling static load test reaction device according to claim 9, characterized in that: The anti-loosening unit (6) further comprises: an anti-loosening limit block (603) and a coil spring D (604); the anti-loosening limit block (603) is slidably mounted on the movable connection sleeve (501), and the inner side of the anti-loosening limit block (603) contacts a row of limit inclined grooves (1031); the coil spring D (604) is mounted on the outside of the circular movable rod (602), and the coil spring D (604) is located between the anti-loosening bracket (601) and the anti-loosening limit block (603).

Images