Supporting device with adjustable groove

Abstract

The groove-adjustable supporting device comprises seat bodies, a connecting mother rod and two adjusting supporting rods, the seat bodies are arranged at intervals, spherical mounting holes are formed in the seat bodies, one ends of the adjusting supporting rods are provided with spherical hinge seats which are arranged in the spherical mounting holes, and the spherical hinge seats are connected with the connecting mother rod. And the other end of the adjusting support rod is connected with the other adjusting support rod through a connecting mother rod. According to the groove-adjustable supporting device, the design that the spherical hinge seat is arranged in the groove-adjustable supporting device, the connecting nut and the adjusting supporting rod are combined is adopted, the groove with the uneven surface can be used for supporting, and the groove-adjustable supporting device can rotate freely to adapt to the perpendicularity of the surface of a crown beam or an enclosing purlin; the connecting mother rod and the adjusting supporting rod are stressed in a balanced and axial mode, and the supporting device is prevented from sliding or deforming and losing efficacy.

Description

Technical Field

[0001] This utility model relates to the field of trench support technology, and more specifically, to an adjustable trench support device. Background Technology

[0002] Trench excavation is a common task in construction, used to build various trenches, culverts, or lay infrastructure such as pipes and cables. Once a trench reaches a certain depth, horizontal supports are necessary to prevent collapse and ensure the safety of construction workers and the stability of the trench. Common support methods include concrete beam supports, steel supports, and hybrid supports. Concrete beam supports offer high stability but have long construction periods, high costs, and are difficult to dismantle; steel supports have short construction periods and can be reused, but require high construction precision and are prone to deformation under stress; hybrid supports have short construction periods, can be reused, and can compensate for deformation, but are more expensive and unsuitable for smaller trenches.

[0003] Moreover, the surface of the groove is uneven, making it inconvenient to install using a traditional base, and the angle is difficult to adjust after installation.

[0004] Therefore, a new type of adjustable trench support device is needed, which can achieve short construction cycle, reusability, adjustable deformation compensation, and minimize cost while ensuring safety and stability. Utility Model Content

[0005] This invention provides a grooved adjustable support device to solve the problems of poor stability and inconvenience in adjustment of existing grooved adjustable supports.

[0006] According to one aspect of the present invention, a grooved adjustable support device is provided, comprising a base, a connecting rod, and two adjustable support rods. The base is spaced apart and has a spherical mounting hole. One end of each adjustable support rod is provided with a spherical hinge seat installed in the spherical mounting hole, and the other end of each adjustable support rod is connected to the other adjustable support rod through the connecting rod.

[0007] Based on the above scheme, preferably, the adjusting support rod includes an externally threaded rod body and a smooth round rod body, and the externally threaded rod body is connected to the spherical hinge seat through the smooth round rod body.

[0008] Preferably, based on the above scheme, the connecting rod is provided with an internal thread, the external thread rod is fitted inside the connecting rod and engages with the internal thread, and a locking nut is fitted on the external thread rod.

[0009] Based on the above scheme, the internal thread preferably includes a left-hand thread and a right-hand thread.

[0010] Based on the above scheme, preferably, there are multiple locking nuts, which are respectively fitted onto the external threaded rod and abut against the end of the connecting rod.

[0011] This utility model discloses a grooved adjustable support device, which adopts a built-in spherical hinge seat and a design combining a connecting nut and an adjusting support rod. It can not only support uneven groove surfaces, but also rotate freely to adapt to the verticality of the cap beam or waler surface, so as to ensure that the connecting rod and the adjusting support rod are subjected to balanced force and axial force, and prevent the support device from sliding or deforming and failing. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0013] Figure 1 This is a schematic diagram showing the usage state of the adjustable groove support device of this utility model.

[0014] Figure 2 This is a schematic diagram of the adjustable groove support device of this utility model;

[0015] Figure 3 This is a top view of the base of this utility model;

[0016] Figure 4 This is a cross-sectional view of the base of this utility model;

[0017] Explanation of icon numbers:

[0018] 1. Connecting main rod; 2. Adjusting support rod;

[0019] 21. Threaded rod body; 22. Fastening nut; 23. Plain round rod body;

[0020] 3. Tighten the nut;

[0021] 4. Gasket assembly;

[0022] 5. Base body;

[0023] 51. Support plate; 52. Positioning groove; 53. Spherical mounting hole. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0026] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0027] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0031] Please see Figure 1 and combined Figure 2 and Figure 3 As shown, the present invention discloses a grooved adjustable support device, characterized in that it includes a base 5, a connecting rod 1, and two adjusting support rods 2. The two bases 5 are arranged opposite each other at intervals, and the base 5 abuts against the inner edge surface of the groove. A spherical mounting hole 53 is provided on the base 5. One end of the adjusting support rod 2 is provided with a spherical hinge seat and installed in the spherical mounting hole 53. The other end of the adjusting support rod 2 is connected to the other adjusting support rod 2 through the connecting rod 1 to form a whole.

[0032] The connecting rod 1 of this invention is made of thick-walled seamless steel pipe with an internal threaded structure, allowing it to be threadedly connected to the adjusting support rod 2 as a whole. The adjusting support rod 2 is made of hot-rolled plain round steel bar, with one end designed as a spherical hinge seat that fits into the spherical mounting hole 53 of the seat body 5. The other end of the adjusting support rod 2 has an external threaded structure, allowing it to be connected to the connecting rod 1. The seat body 5 of this invention is made of steel plate with a symmetrical semi-circular top structure, and is welded together after the spherical hinge seat structure of the adjusting support rod 2 is installed into the positioning groove 52.

[0033] The connecting rod 1 of this utility model can be equipped with adjusting support rods 2 at both ends. Specifically, the connecting rod 1 is provided with an internal thread, and the two ends of the connecting rod 1 are respectively provided with a left-hand thread and a right-hand thread. The adjusting support rod 2 includes an external thread rod body 21 and a smooth round rod body 23. The external thread rod body 21 is connected to the spherical hinge seat through the smooth round rod body 23. The external thread rod body 21 is fitted inside the connecting rod 1 and engages with the internal thread. A locking nut 3 is fitted on the external thread rod body 21. In order to facilitate the application of force, a fastening nut 22 is also welded on the smooth round rod body 23.

[0034] Specifically, the connecting rod 1 is provided with an internal thread, the external thread rod body 21 is fitted inside the connecting rod 1 and engages with the internal thread, and a locking nut 3 is fitted on the external thread rod body 21, and the internal thread includes left-hand thread and right-hand thread; there are multiple locking nuts 3, which are respectively fitted on the external thread rod body 21 and abut against the end of the connecting rod 1; the seat body 5 is welded from two support plates 51 with positioning grooves 52, and after the two adjacent support plates 51 are spliced, the positioning grooves 52 form a spherical mounting hole 53.

[0035] In use, the fastening nut 22 at one end of the adjusting support rod 2 is used to rotate and adjust the thread engagement length. The smooth round support rod can be inserted into the positioning groove 52 of the support plate 51 to prevent the support rod from sliding. The nut assembly and washer assembly 4 are installed on the adjusting support rod 2 near the connecting female rod 1. After tightening, the adjusting support rod 2 can be fixed by the clamping action to prevent it from sliding.

[0036] The bottom plate of the support plate 51 of this utility model is closely attached to the crown beam or waler structure of the inner wall of the trench to increase the contact area between the support device and the crown beam or waler structure, distribute the load evenly to prevent damage to the crown beam or waler structure, and adjust the spherical structure at one end of the support rod 2 is installed in the positioning groove 52, which can rotate freely to adapt to the verticality of the crown beam or waler surface, so as to ensure that the connecting rod 1 and the adjusting support rod 2 are subjected to balanced force and axial force, and prevent the support device from sliding or deforming and failing.

[0037] In practice, firstly, the quantity, size, and installation position of the support devices are determined based on geological conditions, trench dimensions, and the structure of the capping beam or waler. Secondly, based on the determined data, nuts and washers are installed on the adjusting support rod 2, and the externally threaded rod body 21 is screwed into the predetermined position within the connecting mother rod 1. Thirdly, the entire assembly is placed in the predetermined position of the capping beam or waler. After the spherical structure of the adjusting support rod 2 is installed into the positioning groove 52, it is welded into a whole. The length and support force are adjusted by rotating the fastening nut 22 on the adjusting support rod 2. After reaching the predetermined value, the nut assembly is tightened to fix the connecting mother rod 1 and the adjusting support rod 2 assembly into a whole. Finally, according to the inspection plan in the construction scheme, the deformation and support force of the support devices are inspected periodically, and the fastening nut 22 is rotated and adjusted in a timely manner.

[0038] After construction is completed, loosen the nut assembly, rotate the fastening nut 22 to shorten the length of the support device, remove all parts, and inspect and maintain them.

[0039] This utility model discloses a grooved adjustable support device, which adopts a built-in spherical hinge seat and a design combining a connecting nut and an adjusting support rod 2. It can not only support uneven groove surfaces, but also rotate freely to adapt to the verticality of the crown beam or waler surface, so as to ensure that the connecting rod 1 and the adjusting support rod 2 are subjected to balanced force and axial force, and prevent the support device from sliding or deforming and failing.

[0040] Compared with the prior art, the grooved adjustable support device of this utility model has the following advantages:

[0041] 1) Adaptive adjustment: The spherical hinge structure allows for ±15° deflection and can adapt to trench wall inclination within 3%;

[0042] 2) Double locking: The threaded joint + lock nut structure ensures an anti-slip safety factor ≥ 2.5;

[0043] 3) Uniform load distribution: The support plate design ensures uniform contact pressure distribution, with local bearing pressure ≤2MPa;

[0044] 4) Quick assembly and disassembly: Installation time for a single unit is ≤15 minutes, and disassembly time is ≤8 minutes;

[0045] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A trench adjustable support apparatus, characterized by, The adjusting support rod comprises an outer threaded rod body and a smooth rod body, and the outer threaded rod body is connected with the spherical hinge seat through the smooth rod body.

2. A channel adjustable support apparatus as claimed in claim 1, wherein, The connecting female rod is provided with an inner thread, the outer threaded rod body is sleeved in the connecting female rod and engaged with the inner thread, and a locking nut is sleeved on the outer threaded rod body.

3. A channel adjustable support apparatus as claimed in claim 2, wherein, The inner thread comprises left-handed threads and right-handed threads.

4. A channel adjustable support device as claimed in claim 3, wherein, The locking nuts are multiple, are respectively sleeved on the outer threaded rod body, and abut against the end of the connecting female rod.

5. A channel adjustable support device as claimed in claim 3, wherein, The smooth rod body is further connected with a fastening nut.

6. A channel adjustable support apparatus as claimed in claim 2, wherein, ​

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