Prestress load box combination device for self-balancing method test

Abstract

The utility model discloses a prestress load box combination device for a self-balancing method test, which comprises a mounting shell, the middle part of the mounting shell is rotatably connected with a plurality of threaded rods, and the exteriors of the plurality of threaded rods are rotatably connected with threaded sleeves; one end of each threaded sleeve penetrates through the side wall of the mounting shell, extends to the outside and is fixedly connected with a connecting plate, a first flow guide body and a second flow guide body are arranged on the two sides of the connecting plate correspondingly, telescopic rods are fixedly connected to the side walls of the first flow guide body and the second flow guide body correspondingly, and a sleeve is arranged outside every two connected telescopic rods; a plurality of positioning holes are formed in the side wall of the sleeve, and a positioning rod is arranged on the side wall of the telescopic rod. By means of the structure, the threaded rod is matched with the threaded sleeve, the telescopic rod is matched with the sleeve, the size of the load box can be adjusted, use is convenient, and the utilization rate of the load box can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of load boxes, in particular to a prestressed load box assembly device used for self-balancing method tests. Background Art

[0002] With the development of the construction industry, pile foundation has become the most important foundation form for important construction projects. When conducting static load tests on pile bearing capacity, the most commonly used method is the stacking method. However, this method has poor safety, high requirements for the test site, a large workload for stacking, and a long detection time, which makes the static load test on pile bearing capacity using the stacking method encounter many difficulties, which is not conducive to the efficient advancement of construction projects. The self-balancing static load test has the advantages of high safety, simple installation and fast testing. It can also be applied to static load tests on water, slopes and narrow sections, as well as large-tonnage piles. Load boxes are used when conducting self-balancing static load tests. The existing load boxes need to produce load boxes of different sizes according to different situations during installation, which is more troublesome in actual operation and it is not convenient to adjust the size of the guide body. Utility Model Content

[0003] The utility model aims to provide a prestressed load box assembly device for self-balancing method test, so as to solve the problem that the existing load boxes need to produce load boxes of different sizes according to different situations during installation, which is troublesome in actual operation and inconvenient to adjust the size of the guide body.

[0004] To achieve the above-mentioned purpose, a prestressed load box combination device for self-balancing method test is provided, comprising: a mounting shell, a plurality of threaded rods are rotatably connected to the middle part of the mounting shell, a plurality of threaded rods are rotatably connected to the outside of each of the threaded rods, one end of each of the threaded sleeves passes through the side wall of the mounting shell and extends to the outside and is fixedly connected to a connecting plate, a first flow guide and a second flow guide are respectively arranged on both sides of the connecting plate, a telescopic rod is fixedly connected to the side walls of the first flow guide and the second flow guide, a sleeve is arranged on the outside of the two connected telescopic rods, a plurality of positioning holes are opened on the side wall of the sleeve, and a positioning rod is arranged on the side wall of the telescopic rod.

[0005] According to the prestressed load box assembly device for self-balancing method test, a first bevel gear is arranged at one end of the plurality of threaded rods, a knob is arranged at the upper end of the mounting shell, and a second bevel gear is arranged at one end of the knob.

[0006] According to the prestressed load box assembly device for self-balancing method test, a second limit plate is slidably connected inside the sleeve, and a side wall of the second limit plate is fixedly connected to one end of the telescopic rod.

[0007] According to the prestressed load box assembly device for self-balancing method test, the side wall of the telescopic rod is provided with an installation groove, a spring is arranged inside the installation groove, one end of the spring is fixedly connected to a first limit plate, and the side wall of the first limit plate is fixedly connected to one end of the positioning rod.

[0008] According to the prestressed load box assembly device for self-balancing method test, the side wall of the sleeve is fixedly connected with a mounting plate, and a hydraulic component is installed between two connected mounting plates.

[0009] According to the prestressed load box assembly device for self-balancing method test, the first flow guide side wall is in contact with the connecting plate side wall, the first flow guide side wall is provided with an oil pipe, and the second flow guide side wall is fixedly connected to the connecting plate side wall.

[0010] According to the prestressed load box assembly device for self-balancing method test, the outer side of the threaded sleeve is slidably connected to the inside of the mounting shell, the outer side of the threaded sleeve is fixedly connected to a limit block, a groove is provided at the connection between the threaded sleeve and the mounting shell, and the limit block and the groove cooperate with each other.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model utilizes the threaded rod and the threaded sleeve to cooperate with each other, and under the cooperation of the first bevel gear and the second bevel gear, multiple threaded sleeves are moved simultaneously, and the telescopic rod is cooperated with the sleeve, so the size of the load box can be adjusted, and it can be adjusted in time according to the on-site conditions. It is more convenient to use and can improve the installation efficiency.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 It is a three-dimensional diagram of a prestressed load box assembly device used for self-balancing method test of the utility model;

[0015] Figure 2 It is a cross-sectional view of a prestressed load box assembly device used for self-balancing method test of the utility model;

[0016] Figure 3 It is a sleeve cross-sectional view of a prestressed load box assembly device used for self-balancing method test of the utility model;

[0017] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1. mounting shell; 2. connecting plate; 3. knob; 4. oil pipe; 5. first guide body; 6. second guide body; 7. sleeve; 8. first bevel gear; 9. threaded sleeve; 10. positioning hole; 11. telescopic rod; 12. threaded rod; 13. second bevel gear; 14. mounting groove; 15. spring; 16. first limit plate; 17. mounting plate; 18. hydraulic assembly; 19. second limit plate; 20. positioning rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a prestressed load box assembly device for self-balancing method test, comprising: a mounting shell 1, a plurality of threaded rods 12 are rotatably connected to the middle of the mounting shell 1, and a plurality of threaded rods 12 are rotatably connected to the outside of the plurality of threaded rods 12, so that the threaded sleeves 9 are driven by the threaded rods 12 to move, and the size of the load box can be adjusted, and one end of the plurality of threaded sleeves 9 extends to the outside through the side wall of the mounting shell 1 and is fixedly connected to a connecting plate 2, and a first flow guide 5 and a second flow guide 6 are respectively arranged on both sides of the connecting plate 2, and the first flow guide 5 and the second flow guide 6 are poured with cement inside, and the side walls of the first flow guide 5 and the second flow guide 6 are fixedly connected with a telescopic rod 11, and a sleeve 7 is arranged outside the two connected telescopic rods 11, and a plurality of positioning holes 10 are opened on the side wall of the sleeve 7, and the positioning rod 20 cooperates with the positioning hole 10 to locate the position of the telescopic rod 11, and the positioning rod 20 is arranged on the side wall of the telescopic rod 11.

[0021] A first bevel gear 8 is provided at one end of the plurality of threaded rods 12, and the first bevel gear 8 is meshed with the second bevel gear 13i so that the plurality of threaded rods 12 rotate simultaneously, a knob 3 is provided at the upper end of the mounting shell 1, and a second bevel gear 13 is provided at one end of the knob 3, and a second limit plate 19 is slidably connected inside the sleeve 7, and the second limit plate 19 can limit the moving position of the telescopic rod 11 to prevent it from falling off, and a side wall of the second limit plate 19 is fixedly connected to one end of the telescopic rod 11, and a mounting groove 14 is provided on the side wall of the telescopic rod 11, and a spring 15 is provided inside the mounting groove 14, and the elasticity of the spring 15 is used to push the positioning rod 20 to move so that the positioning rod 20 passes through the positioning hole 10, and one end of the spring 15 is fixedly connected to the first limit plate 16, and the second limit plate 19 is fixedly connected to the second limit plate 19. A side wall of a limit plate 16 is fixedly connected to one end of the positioning rod 20, a mounting plate 17 is fixedly connected to the side wall of the sleeve 7, a hydraulic assembly 18 is installed between the two connected mounting plates 17, and the hydraulic assembly 18 is pressurized through the oil pipe 4 to break the pile foundation, thereby performing a self-balancing test, the side wall of the first guide body 5 is fitted with the side wall of the connecting plate 2, the side wall of the first guide body 5 is provided with an oil pipe 4, the side wall of the second guide body 6 is fixedly connected to the side wall of the connecting plate 2, the outer side of the threaded sleeve 9 is slidably connected to the inside of the mounting shell 1, the outer side of the threaded sleeve 9 is fixedly connected to a limit block, a groove is provided at the connection between the threaded sleeve 9 and the mounting shell 1, the limit block is matched with the groove, so that the threaded sleeve 9 can move outside the threaded rod 12, and the limit block and the groove match each other.

[0022] Working principle: When in use, according to actual conditions, the knob 3 is used to drive the first bevel gear 8 and the second bevel gear 13 to rotate, so that the threaded rod 12 rotates. During the rotation process, the limit block and the groove cooperate to make the threaded sleeve 9 move, and during the movement, the connecting plate 2 is pushed to move, and the connecting plate 2 is moved with the cooperation of the telescopic rod 11 and the sleeve 7, so that the size of the load box is adjusted, and the spring 15 is used to cooperate with the positioning rod 20, and the positioning rod 20 cooperates with the positioning hole 10, so that the position of the telescopic rod 11 can be positioned, the upper pile and the lower pile are welded to the first guide body 5 and the second guide body 6 respectively, and during operation, the hydraulic assembly 18 is pressurized through the oil pipe 4, so that the pile body is disconnected, and the test pile continues to be used as an engineering pile, and the open space is filled with cement slurry by grouting to ensure that the open part of the load box can still withstand the downward pressure, and when filling the cement slurry, the cement slurry filled in the load box can be made more substantial to avoid affecting the use of the cement pile.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A prestressed load box assembly for self-balancing method test, comprising: The mounting shell (1) is characterized in that a plurality of threaded rods (12) are rotatably connected to the middle of the mounting shell (1), and a threaded sleeve (9) is rotatably connected to the outside of the plurality of threaded rods (12), and one end of the plurality of threaded sleeves (9) passes through the side wall of the mounting shell (1) and extends to the outside and is fixedly connected to a connecting plate (2), and a first flow guide (5) and a second flow guide (6) are respectively arranged on both sides of the connecting plate (2), and the side walls of the first flow guide (5) and the second flow guide (6) are fixedly connected to a telescopic rod (11), and a sleeve (7) is arranged on the outside of the two connected telescopic rods (11), and a plurality of positioning holes (10) are opened on the side wall of the sleeve (7), and a positioning rod (20) is arranged on the side wall of the telescopic rod (11).

2. A prestressed load box assembly for self-balancing method test as claimed in claim 1, characterized in that: A first bevel gear (8) is provided at one end of the plurality of threaded rods (12), a knob (3) is provided at the upper end of the mounting shell (1), and a second bevel gear (13) is provided at one end of the knob (3).

3. A prestressed load box assembly for self-balancing method test as claimed in claim 1, characterized in that: A second limiting plate (19) is slidably connected inside the sleeve (7), and a side wall of the second limiting plate (19) is fixedly connected to one end of the telescopic rod (11).

4. A prestressed load box assembly for self-balancing method test as claimed in claim 1, characterized in that: The side wall of the telescopic rod (11) is provided with a mounting groove (14), a spring (15) is arranged inside the mounting groove (14), one end of the spring (15) is fixedly connected to a first limiting plate (16), and the side wall of the first limiting plate (16) is fixedly connected to one end of the positioning rod (20).

5. A prestressed load box assembly for self-balancing method test as claimed in claim 1, characterized in that: The side wall of the sleeve (7) is fixedly connected with a mounting plate (17), and a hydraulic assembly (18) is installed between two connected mounting plates (17).

6. A prestressed load box assembly for self-balancing method test as claimed in claim 1, characterized in that: The side wall of the first flow guide (5) is in contact with the side wall of the connecting plate (2), the side wall of the first flow guide (5) is provided with an oil pipe (4), and the side wall of the second flow guide (6) is fixedly connected to the side wall of the connecting plate (2).

7. A prestressed load box assembly for self-balancing method test as claimed in claim 1, characterized in that: The outer side of the threaded sleeve (9) is slidably connected to the inside of the mounting shell (1), the outer side of the threaded sleeve (9) is fixedly connected to a limit block, a groove is provided at the connection between the threaded sleeve (9) and the mounting shell (1), and the limit block and the groove cooperate with each other.

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