A limiting assembly

Abstract

The utility model discloses a limiting assembly belongs to pipeline construction technical field, including truss, both sides of truss are connected with side plate, and the side plate is connected with truss between welding and is provided with the reinforcing rib, truss top is connected with push handle, the support assembly that can be connected with foundation pit is established to the side plate side wall and bottom, and the support assembly includes: the expansion plate, support plate, through -hole, extension plate, universal wheel, first screw rod, support leg, the side wall of side plate all is installed with expansion plate, and the inner board end of expansion plate is connected with support plate, and the support plate surface is provided with the through -hole of through -going, the utility model discloses the support leg is contacted with the bottom of foundation pit by moving down, and the support plate is pulled out to the outside simultaneously, and the anchor nail is inserted into the through -hole and is connected between foundation pit side along, can complete the fixing of whole device, indirectly, provides a stable support for the clamping plate, is convenient for the fixed pipe mouth, avoids the displacement of pipe mouth vibration and produces, improves production safety.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline construction technology, specifically a limiting component. Background Technology

[0002] Pipeline construction covers a wide range of areas, including municipal pipelines, energy pipelines, and power pipelines. Pipelines are like blood vessels, providing fluid transport and discharge for residents and production, and are an indispensable part of modern society.

[0003] Pipeline construction generally consists of the following steps: surveying and setting out, trench excavation, pipe foundation treatment, pipeline foundation construction, pipeline installation, pipe joint construction, secondary sand and gravel foundation, manhole construction, concealed acceptance, and layered compaction and backfilling.

[0004] After the pipeline connection is completed, a pressure test and leak detection are required. The purpose of the pressure test and leak detection is to check whether the pipeline is airtight and whether it can withstand a high-pressure transmission environment. Before the pressure test and leak detection, the pipeline needs to be purged. The purging operation uses high-pressure gas or fluid to fill the pipeline and blow out sand, gravel, impurities, and welding slag left inside the pipeline due to movement and welding, ensuring the cleanliness of the pipeline interior and facilitating subsequent high-pressure leak detection.

[0005] Because purging requires the use of high-pressure gas or fluid, and the pipeline is not completely fixed at this time (if the test fails, it needs to be reworked), when the high-pressure gas is ejected from the pipe opening, the pressure change will cause the pipe opening to vibrate or shift, and in severe cases, it will swing. Therefore, the pipe opening needs to be fixed before purging. The existing common solution is to use sandbags to press down on the pipe opening for fixation. However, in production, it has been found that although sandbags are easy to obtain at the construction site, they are heavy and inconvenient to transport. At the same time, uneven pressure can cause the pipeline to become out of round and be damaged, affecting subsequent connections.

[0006] Therefore, based on the above problems, a component that is easy to install and can fix the pipes was designed. Utility Model Content

[0007] The purpose of this utility model is to provide a limiting component in order to solve the above-mentioned problems.

[0008] The technical solution adopted by this utility model is as follows: a limiting component, including a truss, with side plates connected to both sides of the truss, and reinforcing ribs welded between the side plates and the truss, and a push handle connected to the top of the truss;

[0009] The sidewalls and bottom of the side plate are provided with support components that can be connected to the foundation pit; the support components include: telescopic plate, support plate, through hole, extension plate, caster wheel, first lead screw, and support leg;

[0010] The side panels are all equipped with telescopic plates, and the inner end of the telescopic plate is connected to a support plate. The surface of the support plate is provided with through holes.

[0011] Each side plate is connected to an extension plate at its bottom. A caster wheel is installed on one side of the bottom of the extension plate, and a first lead screw is threaded to the other side of the extension plate. The lower end of the first lead screw is movably connected to a support foot via a ball joint.

[0012] The inner side of the side plate is provided with a limiting structure that can clamp the pipe; the limiting structure includes: a sliding groove, a second lead screw, a slider, a clamping plate, a guide post, a third lead screw, and a connecting lug;

[0013] A sliding groove is provided on the inner side of the side plate, and a second lead screw is rotatably installed through the sliding groove. A slider is slidably connected inside the sliding groove. A clamping plate is installed on the other side of the slider. The clamping plate is arc-shaped, and a rubber layer is attached to the inner wall of the clamping plate. Connecting ears are integrally provided on the upper and lower edges of the clamping plate and the slider.

[0014] The back of the slide is integrally provided with two guide posts. A third lead screw is rotatably connected between the two guide posts on the back of the slide. The third lead screw and the guide posts both extend through the side plate, and the guide posts and the side plate are slidably connected. The third lead screw and the side plate are threadedly connected.

[0015] The second lead screw passes through the slider and is threadedly connected to the slider.

[0016] The first lead screw, the second lead screw, and the third lead screw are all equipped with handles at their ends.

[0017] The outer and inner panels of the telescopic plate are connected by a through hole.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by moving the support foot down to contact the bottom of the pit and pulling out the support plate, and by inserting anchor nails into the through hole to connect with the side edge of the pit, the entire device can be fixed. Indirectly, it provides a stable support for the clamping plate, which facilitates the fixing of the pipe opening, avoids displacement caused by pipe opening vibration, and improves production safety.

[0020] 2. In this utility model, the clamping plate can move longitudinally and laterally, which facilitates clamping the pipe opening. At the same time, the clamping plate is arc-shaped and the inner wall of the clamping plate is fitted with a rubber layer, which can protect the pipe. The whole device is easy to operate and can be used repeatedly.

[0021] 3. In this utility model, by using connecting ears, different clamping plates can be replaced according to the usage conditions, thereby enabling the use of pipes of various specifications. Attached Figure Description

[0022] Figure 1 This is a simplified schematic diagram of the three-dimensional structure of this utility model;

[0023] Figure 2 This is a simplified schematic diagram of the planar structure in this utility model;

[0024] Figure 3 This is a simplified schematic diagram of a partial three-dimensional structure of the present invention.

[0025] The markings in the diagram are: 1. Truss; 101. Reinforcing rib; 102. Push handle; 2. Side plate; 201. Telescopic plate; 202. Support plate; 2021. Through hole; 3. Extension plate; 301. Caster wheel; 302. First lead screw; 303. Support leg; 4. Slide groove; 401. Second lead screw; 402. Sliding block; 5. Clamping plate; 6. Guide post; 601. Third lead screw; 7. Connecting lug. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model:

[0028] Reference Figure 1-3 A limiting component includes a truss 1, with side plates 2 connected to both sides of the truss 1, and reinforcing ribs 101 welded between the side plates 2 and the truss 1. A push handle 102 is connected to the top of the truss 1, and the push handle 102 is used to pull the device, which, together with the caster wheel 301, moves the component to the pipe opening.

[0029] The side wall and bottom of side plate 2 are provided with support components that can be connected to the foundation pit;

[0030] The support assembly includes: a telescopic plate 201, a support plate 202, a through hole 2021, an extension plate 3, a caster wheel 301, a first lead screw 302, and a support leg 303; telescopic plates 201 are installed on the side walls of the side plate 2, and the inner plate end of the telescopic plate 201 is connected to the support plate 202. The support plate 202 has a through hole 2021 through it. The outer plate and the inner plate of the telescopic plate 201 are connected through the through hole. The length of the telescopic plate 201 can be determined by inserting a pin into the through hole, thereby ensuring the fixation of the telescopic plate 201. Then, the anchor is inserted into the through hole 2021 and connected to the side edge of the pit to complete the fixation of the entire device, indirectly providing support for the clamping plate 5 and preventing displacement caused by pressure changes at the pipe opening.

[0031] The bottom of each side plate 2 is connected to an extension plate 3. One side of the bottom of the extension plate 3 is equipped with a caster wheel 301, and the other side of the extension plate 3 is threadedly connected to a first lead screw 302. The lower end of the first lead screw 302 is movably connected to a support leg 303 through a ball joint.

[0032] The inner side of the side plate 2 is provided with a limiting structure that can clamp the pipe;

[0033] The limiting structure includes: a slide groove 4, a second lead screw 401, a slider 402, a clamping plate 5, a guide post 6, a third lead screw 601, and a connecting lug 7; a slide groove 4 is provided on the inner side of the side plate 2, and a second lead screw 401 is rotatably installed inside the slide groove 4. A slider 402 is slidably connected inside the slide groove 4. A clamping plate 5 is installed on the other side of the slider 402, and connecting lugs 7 are integrally provided on the upper and lower edges of the clamping plate 5 and the slider 402. The second lead screw 401 passes through the slider 402 and is threadedly connected to the slider 402. Under the rotation of the second lead screw 401, the slider 402 can be made to move longitudinally in a straight line under the guidance of the slide groove 4 by using the engagement of the threads, thereby adjusting the height of the clamping plate 5. At the same time, a scale line is provided on the side edge of the slide groove 4. By observing the scale line in conjunction with the slider 402, the position of the slider 402 can be known.

[0034] The back of the slide 4 is integrally provided with two guide posts 6. A third screw 601 is rotatably connected between the two guide posts 6 on the back of the slide 4. Both the third screw 601 and the guide posts 6 extend through the side plate 2, and the guide posts 6 and the side plate 2 are slidably connected. The third screw 601 and the side plate 2 are threadedly connected. By rotating the third screw 601, the slide 4 moves by the engagement of the threads. At the same time, under the guidance of the guide posts 6, it moves laterally in a straight line, thereby driving the clamping plate 5 to clamp the pipe. It is convenient and flexible to use.

[0035] Furthermore, the first lead screw 302, the second lead screw 401, and the third lead screw 601 are all equipped with handles at their ends, which makes it easier to drive the first lead screw 302, the second lead screw 401, and the third lead screw 601. At the same time, all three lead screws are made of high-strength steel, which can provide strong and stable support.

[0036] Furthermore, the clamping plate 5 is arc-shaped, and the inner wall of the clamping plate 5 is fitted with a rubber layer to protect the pipe. In addition, by using the connecting lug 7, different clamping plates 5 can be replaced according to the usage, thereby allowing the use of pipes of various specifications.

[0037] Furthermore, the guide post 6 and the side plate 2, and the slide groove 4 and the slider 402 have high matching precision, which can provide stable support. The lead screw is made of high-strength steel and has high tensile strength, which can improve stable displacement.

[0038] Working principle: First, the device is moved to the pipe opening using the push handle 102 and the universal wheels 301. Then, the first screw 302 is rotated to lower the support leg 303 to contact the bottom of the pit. The worker uses a spirit level to level the area. Next, the support plate 202 is pulled outwards, and a pin is inserted into the through hole to determine the length of the telescopic plate 201, ensuring its stability. Then, anchor bolts are inserted into the through hole 2021 to connect with the side edge of the pit, completing the fixation of the entire device. Next, using the connecting lug 7, different clamping plates 5 can be replaced according to usage, allowing for the use of various pipe specifications. This is done in conjunction with the second screw 401... When rotated, the engagement of the threads allows the slider 402 to move longitudinally in a straight line under the guidance of the slide groove 4, thereby adjusting the height of the clamping plate 5. At the same time, the slide groove 4 has scale lines on its side. By observing the interaction between the scale lines and the slider 402, the position of the slider 402 can be determined. Finally, by rotating the third lead screw 601, the engagement of the threads causes the slide groove 4 to move. Simultaneously, under the guidance of the guide post 6, it moves laterally in a straight line, thereby driving the clamping plate 5 to clamp the pipe, achieving the purpose of fixing the pipe opening and preventing displacement caused by pressure changes at the pipe opening. The clamping plate 5 is arc-shaped, and the inner wall of the clamping plate 5 is fitted with a rubber layer to protect the pipe.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A limiting assembly, comprising a truss (1), characterized in that: The truss (1) is connected to side plates (2) on both sides, and a reinforcing rib (101) is welded between the side plates (2) and the truss (1). A push handle (102) is connected to the top of the truss (1). The side plate (2) is provided with support components on its side wall and bottom that can be connected to the foundation pit; The support components include: a telescopic plate (201), a support plate (202), a through hole (2021), an extension plate (3), a caster wheel (301), a first lead screw (302), and a support leg (303); The side panels (2) are all equipped with telescopic plates (201), and the inner end of the telescopic plate (201) is connected to a support plate (202). The surface of the support plate (202) is provided with a through hole (2021). The bottom of each side plate (2) is connected to an extension plate (3). One side of the bottom of the extension plate (3) is equipped with a caster wheel (301), and the other side of the extension plate (3) is threadedly connected to a first lead screw (302). The lower end of the first lead screw (302) is movably connected to a support leg (303) through a ball joint. The inner side of the side plate (2) is provided with a limiting structure that can clamp the pipe; The limiting structure includes: a slide groove (4), a second lead screw (401), a slider (402), a clamping plate (5), a guide post (6), a third lead screw (601), and a connecting lug (7); The inner side of the side plate (2) is provided with a sliding groove (4), and a second lead screw (401) is rotatably provided inside the sliding groove (4). A slider (402) is slidably connected inside the sliding groove (4). A clamping plate (5) is installed on the other side of the slider (402), and the clamping plate (5) and the slider (402) are integrally provided with connecting ears (7) along the upper and lower edges. The back of the slide (4) is integrally provided with guide posts (6), and there are two of them. The back of the slide (4) is rotatably connected between the two guide posts (6).

2. The limiting component as described in claim 1, characterized in that: The third lead screw (601) and the guide post (6) both extend through the side plate (2), and the guide post (6) and the side plate (2) are slidably connected, while the third lead screw (601) and the side plate (2) are threadedly connected.

3. A limiting component as described in claim 1, characterized in that: The second lead screw (401) passes through the slider (402) and is threadedly connected to the slider (402).

4. A limiting component as described in claim 1, characterized in that: The first lead screw (302), the second lead screw (401), and the third lead screw (601) are all provided with handles at their ends.

5. A limiting component as described in claim 1, characterized in that: The outer and inner plates of the telescopic plate (201) are connected by a through hole.

6. A limiting component as described in claim 1, characterized in that: The clamping plate (5) is arc-shaped, and the inner wall of the clamping plate (5) is fitted with a rubber layer.

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