A convenient adjustable heating and ventilation pipeline laying welding fixture

Abstract

The utility model relates to pipeline welding fixture technical field, and disclose a convenient to adjust's heating ventilation pipeline lays the clamp for welding, including base, one end of two first clamping plates is located inside the recess, and first clamping plate moves along the recess axial direction. The utility model discloses through rotating first rotary handle, drives two -way screw rod to rotate, because the thread direction of two -way screw rod's both ends is opposite, and two first clamping plates will move to the middle or both sides simultaneously, when first clamping plate moves to the middle, and first clamping plate will gradually clamp heating ventilation pipeline and position heating ventilation pipeline in the just below of second clamping plate, then rotates second rotary handle, drives second one -way screw rod to rotate, makes second one -way screw rod with threaded hole as center downward axial movement, makes second clamping plate move down, further clamps heating ventilation pipeline, plays good clamping effect.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding fixture technology, specifically a fixture for laying and welding HVAC pipes that is easy to adjust. Background Technology

[0002] Pipe welding clamps are devices used for precise positioning, reliable clamping, and easy assembly and welding of pipes. Pipe welding clamps are required during the laying of HVAC pipes.

[0003] The utility model patent application with publication number "CN211840829U" discloses a conveniently adjustable clamp for laying and welding HVAC ductwork. It mainly consists of a duct body, a base plate, a clamping device, a connecting plate, a connecting shaft and a rotating rod, a lead screw, a return spring, a rotating shaft, and a connecting rope. In this technical solution, the rotating rod, in conjunction with the rotating sleeve at the bottom, moves on the lead screw, which can effectively adjust the height of the entire duct body through the connecting plate. Moreover, the height adjustment between the two sets of rotating rods on the base plate does not interfere with each other, achieving the effect of conveniently adjusting the height between the two duct bodies to be welded.

[0004] The aforementioned document discloses a convenient adjustable clamp for laying and welding HVAC ductwork, which has the following defects: This technical solution uses the fastening bolts at the top of both sides of the clamping device to fix the ductwork body by rotating the ends of the fastening bolts. When used in a vibrating environment, the fastening bolts may gradually loosen due to vibration, causing a decrease in the clamping force on the ductwork body, and thus causing the fastening bolts to lose their clamping effect on the ductwork body.

[0005] Therefore, it can be seen that the existing clamps for laying and welding HVAC pipes do not have a good clamping structure. Utility Model Content

[0006] The purpose of this utility model is to provide a conveniently adjustable clamp for laying and welding HVAC ducts, thereby solving the problem that existing clamps for laying and welding HVAC ducts do not have a good clamping effect.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a conveniently adjustable clamp for laying and welding HVAC ductwork, comprising a base. Two sets of height adjustment components are provided on the upper surface of the base. Each set of height adjustment components has a clamping component at one end. Each height adjustment component includes a rectangular block mounted on the upper surface of the base. One end of the rectangular block has a groove. A first one-way screw is rotatably connected to the bottom of the groove, with one end of the first one-way screw penetrating the rectangular block. The clamping component includes a first slider. The outer surface of the first one-way screw is threadedly connected to the first slider. One end of the first slider is located inside the groove and moves along the axis of the groove. The other end of the first slider has a base plate. A groove is formed on the upper surface of the base plate. A bidirectional screw is rotatably connected to the inner surface of the groove. One end of the bidirectional screw penetrates the base plate and is equipped with a first rotating handle. Two first clamping plates are threadedly connected to the outer surface of the bidirectional screw. One end of each of the two first clamping plates is located inside the groove and moves along the axis of the groove.

[0008] Furthermore, a connecting frame is hinged to the upper surface of the base plate, and a threaded hole is opened on the upper surface of the connecting frame. A second one-way screw is threaded into the inside of the threaded hole. A second clamping plate is installed at one end of the second one-way screw through a bearing, and a second rotating handle is installed at the other end of the second one-way screw.

[0009] Furthermore, the upper surface of the connecting frame is provided with a through hole, and a sliding rod is slidably connected inside the through hole. A pull block is installed at one end of the sliding rod, and an abutment plate is installed at the other end of the sliding rod. A limit rod is installed on the lower surface of the abutment plate, and a limit hole is provided on the upper surface of the base plate. The limit rod is fitted inside the limit hole, and a spring is sleeved on the outer surface of the sliding rod. One end of the spring is installed on the lower surface of the connecting frame, and the other end of the spring is installed on the upper surface of the abutment plate.

[0010] Furthermore, both the second clamping plate and the first clamping plate have anti-slip stripes on their outer surfaces.

[0011] Furthermore, a support frame is installed on the upper surface of each of the two rectangular blocks, and a drive motor is installed on the upper surface of the support frame. The output end of the drive motor is fitted with a first one-way screw through a coupling.

[0012] Furthermore, a second slider is slidably connected to the outer surface of the first unidirectional screw. One end of the second slider is located inside the slide groove. The second slider moves along the axis of the slide groove. One end of the second slider is provided with a support plate and an auxiliary plate. The lower surface of the support plate is provided with an auxiliary plate. The support plate is installed on the lower surface of the base plate by bolts.

[0013] This utility model has the following beneficial effects: (1) By rotating the first rotating handle, the bidirectional screw is driven to rotate. Since the threads at both ends of the bidirectional screw are opposite, the two first clamping plates will move to the middle or to the sides at the same time. When the first clamping plate moves to the middle, the first clamping plate will gradually clamp the HVAC pipe and position the HVAC pipe directly below the second clamping plate. Then, by rotating the second rotating handle, the second one-way screw is driven to rotate, so that the second one-way screw moves downward around the threaded hole as the center, so that the second clamping plate moves downward and further clamps the HVAC pipe, achieving a better clamping effect.

[0014] (2) By starting the drive motor, the output end of the drive motor drives the first one-way screw to rotate through the coupling, so that the first slider moves along the slide groove, driving the base plate and the clamping assembly on it to rise or fall as a whole, thereby achieving the effect of height adjustment.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the base and height adjustment component of this utility model; Figure 3 This is a schematic diagram of the clamping assembly and the second slider structure of this utility model; Figure 4 This is a schematic diagram of the clamping assembly structure of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base; 2. Height adjustment assembly; 201. Rectangular block; 202. First one-way screw; 203. Support frame; 204. Drive motor; 3. Clamping assembly; 301. First slider; 302. Base plate; 303. Two-way screw; 304. First rotary handle; 305. First clamping plate; 306. Connecting frame; 307. Second one-way screw; 308. Second clamping plate; 309. Second rotary handle; 3010. Slide rod; 3011. Pull block; 3012. Abutment plate; 3013. Limiting rod; 3014. Spring; 4. Second slider; 401. Support plate; 402. Auxiliary plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] Please see Figures 1-4 As shown, this utility model is a conveniently adjustable clamp for laying and welding HVAC ducts, including a base 1. Two sets of height adjustment components 2 are provided on the upper surface of the base 1. Each set of height adjustment components 2 has a clamping component 3 at one end. Each height adjustment component 2 includes a rectangular block 201, which is mounted on the upper surface of the base 1. A groove is formed at one end of the rectangular block 201, and a first one-way screw 202 is rotatably connected to the bottom of the groove. One end of the first one-way screw 202 passes through the rectangular block 201. The clamping component 3 includes a first slider 301, and the outer surface of the first one-way screw 202 is threaded. A first slider 301 is connected, one end of which is located inside the groove. The first slider 301 moves along the axis of the groove. The other end of the first slider 301 is provided with a base plate 302. A groove is formed on the upper surface of the base plate 302. A bidirectional screw 303 is rotatably connected to the inner surface of the groove. One end of the bidirectional screw 303 passes through the base plate 302 and is equipped with a first rotating handle 304. Two first clamping plates 305 are threadedly connected to the outer surface of the bidirectional screw 303. One end of each of the two first clamping plates 305 is located inside the groove. The first clamping plates 305 move along the axis of the groove. A connecting frame 306 is hinged to the upper surface of the base plate 302. A threaded hole is opened on the upper surface of the connecting frame 306. A second one-way screw 307 is threadedly connected inside the threaded hole. A second clamping plate 308 is installed at one end of the second one-way screw 307 through a bearing. A second rotating handle 309 is installed at the other end of the second one-way screw 307. The upper surface of the connecting frame 306 is also provided with a through hole, and a slide rod 3010 is slidably connected inside the through hole. A pull block 3011 is installed at one end of the slide rod 3010, and an abutment plate 3012 is installed at the other end of the slide rod 3010. A limit rod 3013 is installed on the lower surface of the abutment plate 3012. A limit hole is also provided on the upper surface of the base plate 302. The limit rod 3013 is fitted inside the limit hole. A spring 3014 is sleeved on the outer surface of the slide rod 3010. One end of the spring 3014 is installed on the lower surface of the connecting frame 306, and the other end of the spring 3014 is installed on the upper surface of the abutment plate 3012. When in use, first pull the pull block 3011 upward, so that the pull block 3011 drives the slide bar 3010 to move upward. The spring 3014 gradually contracts and causes the limiting rod 3013 to disengage from the inside of the limiting hole. After the limiting rod 3013 is completely disengaged from the limiting hole, pull the connecting frame 306 outward, so that the connecting frame 306 rotates axially outward about the hinge point with the base plate 302. After the connecting bracket 306 rotates 90°, the force on the pull block 3011 is released. Then, hold the HVAC pipe and place it between the two first clamping plates 305. By rotating the first rotating handle 304, the bidirectional screw 303 is driven to rotate. Since the threads at both ends of the bidirectional screw 303 are opposite, the two first clamping plates 305 will move to the middle or both sides at the same time. When the first clamping plate 305 moves towards the center, it gradually clamps the HVAC pipe. After the first clamping plate 305 has finished clamping the HVAC pipe, it pulls the pull block 3011 outward, causing the pull block 3011 to drive the slide rod 3010 to move outward. The spring 3014 gradually contracts. When the spring 3014 is fully compressed, it pushes the connecting frame 306 inward, causing the connecting frame 306 to rotate axially inward around the hinge point with the base plate 302. After the connecting bracket 306 rotates 90°, the second clamping plate 308 is positioned directly above the HVAC pipe, and the limiting rod 3013 is positioned directly above the limiting hole. Then, the force of the pull block 3011 is released, allowing the spring 3014 to regain its elasticity and push the abutment plate 3012 downward. At the same time, the limiting rod 3013 gradually moves into the limiting hole. After the spring 3014 has fully regained its elasticity, the abutment plate 3012 abuts against the base plate 302, and the limiting rod 3013 is fully fitted inside the limiting hole. At this point, the position of the connecting bracket 306 is fixed. Then, the second rotating handle 309 is rotated, causing the second one-way screw 307 to rotate. The second one-way screw 307 moves downward around the threaded hole, causing the second clamping plate 308 to move downward, further clamping the HVAC pipe and achieving a better clamping effect. Both the outer surfaces of the second clamping plate 308 and the first clamping plate 305 are provided with anti-slip stripes. The anti-slip stripes on the outer surfaces of the second clamping plate 308 and the first clamping plate 305 can increase the friction between the second clamping plate 308, the first clamping plate 305 and the outer wall of the HVAC pipe, thus preventing the pipe from sliding. Support frames 203 are installed on the upper surfaces of the two rectangular blocks 201. A drive motor 204 is installed on the upper surface of the support frame 203. The output end of the drive motor 204 is fitted with a first one-way screw 202 through a coupling. When it is necessary to adjust the height of the clamping assembly 3, the drive motor 204 is started, so that the output end of the drive motor 204 drives the first one-way screw 202 to rotate through the coupling, so that the first slider 301 moves along the slide groove, driving the base plate 302 and the clamping assembly 3 on it to rise or fall as a whole, thereby achieving the effect of height adjustment. The outer surface of the first one-way screw 202 is also slidably connected to the second slider 4. One end of the second slider 4 is located inside the slide groove. The second slider 4 moves along the axis of the slide groove. One end of the second slider 4 is provided with a support plate 401 and an auxiliary plate 402. The lower surface of the support plate 401 is provided with the auxiliary plate 402. The support plate 401 is installed on the lower surface of the base plate 302 by bolts. When the first slider 301 moves along the slide groove, the second slider 4 drives the support plate 401 and the auxiliary plate 402 to move synchronously in the slide groove. The support plate 401 can support the bottom plate 302, and the auxiliary plate 402 can increase the load-bearing strength of the support plate 401.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A conveniently adjustable clamp for laying and welding HVAC ductwork, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with two sets of height adjustment components (2), and one end of each set of height adjustment components (2) is provided with a clamping component (3). The height adjustment component (2) includes a rectangular block (201), which is installed on the upper surface of the base (1). A groove is provided at one end of the rectangular block (201), and a first one-way screw (202) is rotatably connected to the bottom of the groove. One end of the first one-way screw (202) passes through the rectangular block (201). The clamping assembly (3) includes a first slider (301), the outer surface of the first one-way screw (202) is threadedly connected to the first slider (301), one end of the first slider (301) is located inside the slide groove, the first slider (301) moves along the axis of the slide groove, the other end of the first slider (301) is provided with a base plate (302), the upper surface of the base plate (302) is provided with a groove, the inner surface of the groove is rotatably connected to a bidirectional screw (303), one end of the bidirectional screw (303) passes through the base plate (302) and is equipped with a first rotating handle (304); The outer surface of the bidirectional screw (303) is threaded with two first clamping plates (305). One end of each of the two first clamping plates (305) is located inside the groove, and the first clamping plates (305) move along the axis of the groove.

2. The adjustable HVAC duct laying and welding clamp according to claim 1, characterized in that: The upper surface of the base plate (302) is hinged with a connecting frame (306), and the upper surface of the connecting frame (306) is provided with a threaded hole, and the inner thread of the threaded hole is connected with a second one-way screw (307). A second clamping plate (308) is mounted on one end of the second one-way screw (307) via a bearing, and a second rotating handle (309) is mounted on the other end of the second one-way screw (307).

3. The adjustable HVAC duct laying and welding clamp according to claim 2, characterized in that: The upper surface of the connecting frame (306) is also provided with a through hole, and a slide rod (3010) is slidably connected inside the through hole. A pull block (3011) is installed at one end of the slide rod (3010), and an abutment plate (3012) is installed at the other end of the slide rod (3010). A limiting rod (3013) is installed on the lower surface of the abutment plate (3012), and a limiting hole is also opened on the upper surface of the base plate (302). The limiting rod (3013) is installed inside the limiting hole. A spring (3014) is sleeved on the outer surface of the slide rod (3010). One end of the spring (3014) is installed on the lower surface of the connecting frame (306), and the other end of the spring (3014) is installed on the upper surface of the abutment plate (3012).

4. The adjustable HVAC duct laying and welding clamp according to claim 2, characterized in that: The outer surfaces of the second clamping plate (308) and the first clamping plate (305) are both provided with anti-slip stripes.

5. The adjustable HVAC duct laying and welding clamp according to claim 1, characterized in that: The upper surfaces of the two rectangular blocks (201) are each equipped with a support frame (203), and the upper surface of the support frame (203) is equipped with a drive motor (204). The output end of the drive motor (204) is equipped with a first one-way screw (202) through a coupling.

6. The adjustable HVAC duct laying and welding clamp according to claim 1, characterized in that: The outer surface of the first one-way screw (202) is also slidably connected to a second slider (4), one end of the second slider (4) is located inside the groove, and the second slider (4) moves along the axis of the groove; The second slider (4) has a support plate (401) and an auxiliary plate (402) at one end. The auxiliary plate (402) is provided on the lower surface of the support plate (401). The support plate (401) is installed on the lower surface of the base plate (302) by bolts.

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