Foundation pit support changing device

Abstract

The utility model relates to the technical field of support changing devices, and provides a support changing device for a foundation pit, which can form alternative movement of a supporting area while increasing the supporting area in the foundation pit, so that the whole area supported in the foundation pit is changed, the use flexibility is better, a new supporting device is convenient to introduce, and the foundation pit support changing device is convenient to use. The device comprises two threaded cylinders and further comprises two first supporting plates and two second supporting plates, first threaded rods and second threaded rods are in threaded connection with the interiors of the two threaded cylinders, the two first threaded rods are matched with the two first supporting plates correspondingly, and the two second threaded rods are matched with the two second supporting plates correspondingly; a first outer hanging sleeve and a second outer hanging sleeve are rotationally connected to the two threaded cylinders respectively, a displacement driving part is detachably installed between the first outer hanging sleeve and the second outer hanging sleeve and comprises a middle support, a first supporting shaft and a second supporting shaft are slidably connected into the middle support, and the second supporting shaft is inserted into the second outer hanging sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of support replacement devices, in particular to a foundation pit support replacement device. Background Art

[0002] As we all know, the foundation pit replacement device is an auxiliary device used to increase the existing support area along with the foundation pit support when the foundation pit support surface is increased. The function of the replacement support beam is to replace the internal support beam structure in the original support structure to control the horizontal deformation of the cast-in-place piles and the external ground.

[0003] After searching, the patent with publication number CN219195973U published on June 16, 2023 discloses a new type of foundation pit support replacement device, which is roughly described as including a threaded cylinder, the inner wall of the threaded cylinder is threadedly connected to two threaded rods, and the ends of the two threaded rods away from each other are fixedly connected to support plates, and control plates are provided above and below each support plate. The side surfaces of the two groups of control plates close to each other and the side surfaces of the two support plates close to each other are fixedly connected to connecting plates, and the side surfaces of the two groups of connecting plates close to each other are hinged by two groups of pins. Two sliding grooves are provided on the side surfaces of the two support plates close to each other, and the inner wall of each sliding groove is slidably connected to a slider, and the side surfaces of the two groups of sliders close to each other are fixedly connected to a plug plate, and the upper surface of each connecting plate is A socket is provided, and the ends of the two groups of plug plates that are away from each other respectively penetrate the two groups of sockets and extend to the outside of the sockets. The sides of the two groups of sliders that are close to each other are fixedly connected with springs, and the ends of the two groups of springs that are close to each other are fixedly connected to the inner walls of the two groups of slide grooves. When in use, the device moves to the inside of the foundation pit, and by rotating the threaded cylinder, the threaded cylinder is connected to the threaded rod through the thread, so that the threaded rod slowly moves out of the threaded cylinder, and as the threaded rod moves, the support plate can be moved to support the foundation pit, and when the support area is increased, the control plate is rotated to keep the control plate vertical to the support plate, and the elastic force of the spring is used to make the spring push the slider to move, and the slider pushes the plug plate to be inserted into the inside of the socket to position the connecting plate to prevent the control plate from loosening.

[0004] The above-mentioned existing technical solutions cannot achieve the specifications of changing the support area according to the specific construction conditions, and it is not easy to match and adjust according to the actual change of the foundation pit, and the practicality needs to be further improved. It is necessary to provide a foundation pit support replacement device that can form independent support structures and facilitate support during the replacement process. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a foundation pit support replacement device, which can increase the support area in the foundation pit and also form alternating movements of the support areas, thereby achieving a change in the overall area supported in the foundation pit. It has better flexibility in use and is convenient for the introduction of new support devices, thus having better practicality.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit support replacement device, including two threaded cylinders arranged in parallel up and down, and also including two first support plates and two second support plates, the left and right ends of the two threaded cylinders are respectively threadedly connected with a first threaded rod and a second threaded rod, the two first threaded rods are respectively in contact and support cooperation with the two first support plates, the two second threaded rods are respectively in contact and support cooperation with the two second support plates, the two threaded cylinders are respectively rotatably connected with a first external hanging sleeve and a second external hanging sleeve, a shift driving component is detachably installed between the first external hanging sleeve and the second hanging sleeve, and the shift driving component includes a middle bracket, a first support shaft and a second support shaft are slidably connected in the middle bracket, the second support shaft is inserted into the second external hanging sleeve, the first support shaft is detachably connected to the first external hanging sleeve, and a driving rod is fixedly connected to the middle bracket.

[0009] Preferably, an annular groove is formed on the two threaded barrels, and connecting blocks are connected to the two annular grooves. The two connecting blocks are respectively fixedly connected to the first external hanging sleeve and the second external hanging sleeve, and auxiliary holes are provided in the annular grooves.

[0010] Furthermore, the first external sleeve and the second external sleeve are each provided with two connecting holes, the first supporting shaft is provided with an insertion hole, a limit pin is arranged in the insertion hole, and the limit pin passes through the connecting hole that coincides with the insertion hole.

[0011] Preferably, a pulling block is fixedly connected to the limiting pin, and two side grooves are provided on the pulling block, and the two side grooves are symmetrically arranged.

[0012] Furthermore, a magnetic positioning ring is fixedly connected to the rear end of the pulling block, and the first supporting shaft is made of a material that can be attracted by magnetism.

[0013] Preferably, the middle bracket is provided with a plurality of first side holes and a plurality of second side holes, wherein the plurality of first side holes are used for exposing the first support shaft, and the plurality of second side holes are used for exposing the second support shaft, so as to facilitate adjustment operations of the first support shaft and the second support shaft.

[0014] Furthermore, a central cavity hole is opened in the central bracket, and an auxiliary supporting rod is fixedly connected in the central cavity hole.

[0015] Preferably, the auxiliary support rod is provided with a plurality of cylindrical holes, and the plurality of cylindrical holes are sequentially arranged at a certain angle from top to bottom.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a foundation pit support replacement device, which has the following beneficial effects:

[0018] 1. In the present invention, by respectively cooperating with the two first support plates and the two second support plates, a mutually independent support structure can be formed relative to the interior of the foundation pit, providing the necessary prerequisite for the replacement of supports inside the foundation pit.

[0019] 2. In the utility model, the design of the shift drive member facilitates the relative position adjustment of one of the two first support plates relative to the other first support plate, and also facilitates the relative position adjustment of one of the two second support plates relative to the other second support plate.

[0020] 3. In the present invention, the first external hanging sleeve and the second external hanging sleeve are provided to facilitate the relative assembly and connection of the displacement driving member between the two threaded barrels, and the operation is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the support, the first support shaft, the second support shaft, etc. in the utility model;

[0024] Figure 4 It is a schematic diagram of an exploded three-dimensional structure of the first external hanging sleeve and the connecting block of the utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the threaded barrel, the first threaded rod and the second external sleeve of the utility model;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the utility model as a whole when viewed from the rear side.

[0027] In the figure: 1. threaded cylinder; 2. first support plate; 3. second support plate; 4. first threaded rod; 5. second threaded rod; 6. first external sleeve; 7. second external sleeve; 8. middle bracket; 9. first support shaft; 10. second support shaft; 11. driving rod; 12. annular groove; 13. connecting block; 14. auxiliary hole; 15. connecting hole; 16. insertion hole; 17. limit pin; 18. pulling block; 19. side groove; 20. magnetic positioning ring; 21. first side hole; 22. second side hole; 23. auxiliary supporting rod; 24. cylinder hole. DETAILED DESCRIPTION

[0028] 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.

[0029] Example

[0030] Please see attached Figure 1 -Attached Figure 6 A foundation pit replacement support device includes two threaded barrels 1, and also includes two first support plates 2 and two second support plates 3. Through the cooperation of the two first support plates 2 and the two second support plates 3, a mutually independent support structure can be formed relative to the inside of the foundation pit, providing the necessary prerequisite for the replacement of the support inside the foundation pit. The two threaded barrels 1 are both threadedly connected with a first threaded rod 4 and a second threaded rod 5. The two first threaded rods 4 are respectively matched with the two first support plates 2, and the two second threaded rods 5 are respectively matched with the two second support plates 3. The two threaded barrels 1 are respectively rotatably connected with a first external hanging sleeve 6 and a second external hanging sleeve 7. Through the first external hanging sleeve 6 and the second external hanging sleeve 7, Equipped with, it is convenient for the relative assembly connection of the shift driving part between the two threaded barrels 1, and the operation is relatively simple. An annular groove 12 is opened on the two threaded barrels 1, and the two annular grooves 12 are connected with connecting blocks 13. The two connecting blocks 13 are respectively fixedly connected to the first external hanging sleeve 6 and the second external hanging sleeve 7, so that the first external hanging sleeve 6 and the second external hanging sleeve 7 can be rotated and adjusted relative to the two threaded barrels 1, so as to facilitate the alternating use of the two first support plates 2, and also facilitate the alternating use of the two second support plates 3. An auxiliary hole 14 is arranged in the annular groove 12, and the rotation force arm of the threaded barrel 1 can be increased by inserting an external crowbar into the corresponding auxiliary hole 14.

[0031] It should be further explained that a shift driving member is detachably installed between the first external sleeve 6 and the second external sleeve 7. The shift driving member includes a middle bracket 8, in which a first support shaft 9 and a second support shaft 10 are slidably connected, and the second support shaft 10 is inserted into the second external sleeve 7. The first support shaft 9 is detachably connected to the first external sleeve 6, and a driving rod 11 is fixedly connected to the middle bracket 8. Through the design of the shift driving member, it is convenient to adjust the relative position of one of the two first support plates 2 relative to the other first support plate 2, and it is also convenient to adjust the relative position of one of the two second support plates 3 relative to the other second support plate 3. Two connecting holes 15 are provided on the first external sleeve 6 and the second external sleeve 7. An insertion hole 16 is provided on the first support shaft 9, and a limiting pin 17 is provided in the insertion hole 16. The limiting pin 17 passes through the connecting hole 15 that coincides with the insertion hole 16 to form a connection positioning of the first connecting shaft in the first external sleeve 6, and a pulling rod 11 is fixedly connected to the limiting pin 17. The pull block 18 has two side grooves 19, which are symmetrically arranged on the left and right sides. The auxiliary pulling of the limit pin 17 can be achieved by pulling the pull block 18. At the same time, when the pull block 18 is pulled, the opening of the two side grooves 19 facilitates the gripping when the force is applied. The rear end of the pull block 18 is fixedly connected with a magnetic positioning ring 20. The first support shaft 9 is made of a material that can be attracted by magnetism to achieve auxiliary positioning of the limit pin 17. A plurality of first side holes 21 and a plurality of second side holes 22 are provided on the middle bracket 8. , multiple first side holes 21 are used to expose the first support shaft 9, and multiple second side holes 22 are used to expose the second support shaft 10, so as to facilitate the adjustment operation of the first support shaft 9 and the second support shaft 10. A middle cavity hole is opened in the middle bracket 8, and an auxiliary supporting rod 23 is fixedly connected in the middle cavity hole. A plurality of cylindrical holes 24 are opened on the auxiliary supporting rod 23. The plurality of cylindrical holes 24 are arranged in sequence from top to bottom at a certain angle, which is based on the same principle as the aforementioned auxiliary hole 14, so as to facilitate the rotation of the middle bracket 8 through the auxiliary supporting rod 23.

[0032] In summary, the working process of the foundation pit support replacement device is as follows: when in use, firstly, the two first support plates 2 and the two second support plates 3 in the foundation pit support replacement device are placed in the foundation pit, and at the same time, through the cooperation of the two threaded cylinders 1, the two first threaded rods 4 and the two second threaded rods 5, the relative distances of the two first support plates 2 relative to the two second support plates 3 are adjusted, thereby forming relative support of the first support plates 2 and the second support plates 3 in the foundation pit. When it is necessary to replace the support, when replacing the support with one of the two first support plates 2 closer to the upper side relative to the other first support plate 2 closer to the lower side, firstly, the shift driving member is installed between the two threaded cylinders 1, so that the first support shaft 9 and the second support shaft 10 in the middle bracket 8 are respectively inserted into the first external hanging sleeve 6 and the second external hanging sleeve 7. Since the upper and lower positions of the first external hanging sleeve 6 and the second external hanging sleeve 7 are as shown in the attached figure Figure 1As shown, the first support shaft 9 needs to be relatively connected to the first external sleeve 6 through the limit pin 17 after being inserted into the first external sleeve 6, and the second support shaft 10 can fall into the second external sleeve 7 under the action of its own gravity, and then the threaded cylinder 1 close to the upper side of the two threaded cylinders 1 is rotated to shorten the length of the overall bracket that cooperates with the first threaded rod 4 and the second threaded rod 5 that are threadedly connected to the threaded cylinder 1, thereby reducing the pressing effect of the first support plate 2 close to the upper side of the two first support plates 2 relative to the foundation pit, but the relative contact effect between the two is not completely invalid, and at the same time, the pressing effect of the second support plate 3 close to the upper side of the two second support plates 3 relative to the foundation pit can also be reduced, but the two The relative contact effect between them is not completely invalid, and then the middle bracket 8 is rotated with the first support shaft 9 as the support, so as to realize the position driven adjustment of the first external sleeve 6 relative to the second external sleeve 7. After the adjustment is completed, the threaded cylinder 1 closer to the upper side of the two threaded cylinders 1 is rotated again to adjust the relative distance between the first threaded rod 4 and the second threaded rod 5 which are threadedly connected with the threaded cylinder 1. Then, the first support plate 2 located on the upper side and the second support plate 3 located on the upper side are separated from each other, so as to form a second support relative to the inner wall of the foundation pit. For the vacant part in the foundation pit after the movement, a new first support plate 2 and a new second support plate 3 can be introduced again to form a relative position support.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit support replacement device, comprising two threaded cylinders (1), characterized in that: The invention also comprises two first support plates (2) and two second support plates (3), wherein the two threaded cylinders (1) are both threadedly connected with a first threaded rod (4) and a second threaded rod (5), wherein the two first threaded rods (4) respectively cooperate with the two first support plates (2), and the two second threaded rods (5) respectively cooperate with the two second support plates (3); the two threaded cylinders (1) are respectively rotatably connected with a first external sleeve (6) and a second external sleeve (7), wherein a displacement driving member is detachably installed between the first external sleeve (6) and the second external sleeve (7), wherein the displacement driving member comprises a middle bracket (8), wherein a first support shaft (9) and a second support shaft (10) are slidably connected inside the middle bracket (8), wherein the second support shaft (10) is inserted into the second external sleeve (7), wherein the first support shaft (9) is detachably connected to the first external sleeve (6), and a driving rod (11) is fixedly connected to the middle bracket (8).

2. A foundation pit support replacement device according to claim 1, characterized in that: An annular groove (12) is provided on the two threaded barrels (1), and a connecting block (13) is connected to the two annular grooves (12). The two connecting blocks (13) are respectively fixedly connected to the first external hanging sleeve (6) and the second external hanging sleeve (7), and an auxiliary hole (14) is provided in the annular groove (12).

3. A foundation pit support replacement device according to claim 2, characterized in that: The first external sleeve (6) and the second external sleeve (7) are each provided with two connection holes (15), the first support shaft (9) is provided with an insertion hole (16), a limit pin (17) is arranged in the insertion hole (16), and the limit pin (17) passes through the connection hole (15) which coincides with the insertion hole (16).

4. A foundation pit support replacement device according to claim 3, characterized in that: A pulling block (18) is fixedly connected to the limiting pin (17), and two side grooves (19) are provided on the pulling block (18). The two side grooves (19) are symmetrically arranged on the left and right.

5. A foundation pit support replacement device according to claim 4, characterized in that: The rear end of the pulling block (18) is fixedly connected to a magnetic positioning ring (20), and the first supporting shaft (9) is made of a material that can be attracted by magnetism.

6. A foundation pit support replacement device according to claim 5, characterized in that: The middle bracket (8) is provided with a plurality of first side holes (21) and a plurality of second side holes (22), wherein the plurality of first side holes (21) are used for exposing the first support shaft (9), and the plurality of second side holes (22) are used for exposing the second support shaft (10), so as to facilitate the adjustment operation of the first support shaft (9) and the adjustment operation of the second support shaft (10).

7. A foundation pit support replacement device according to claim 6, characterized in that: A central cavity hole is provided in the central support (8), and an auxiliary support rod (23) is fixedly connected in the central cavity hole.

8. A foundation pit support replacement device according to claim 7, characterized in that: The auxiliary support rod (23) is provided with a plurality of cylindrical holes (24), and the plurality of cylindrical holes (24) are sequentially arranged from top to bottom at a certain angle.

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