A righting device for heating and ventilation installation engineering

Abstract

The utility model discloses a kind of righting devices for heating and ventilation equipment installation engineering, specifically related to heating and ventilation equipment installation technical field, including underframe, vertical frame, crossbeam, clamping mechanism, fixed base, lifting cylinder, lifting seat, the lifting seat top is equipped with avoidance slot;Horizontal sliding hole is opened in the lifting seat, sliding hole is slidably inserted with sliding rod, and one end of the sliding rod is vertically fixed with fixed sleeve, lifting rod is arranged in the fixed sleeve, and the upper end of the lifting rod is fixed with foolproof pin for inserting pipeline end flange bolt hole.The utility model in the present application, by setting movable foolproof pin, when pipeline is supported on roller shaft and rotates, it is inserted into the bolt hole of flange, so as to fix the angle of pipeline in advance before adjusting the height of pipeline.When pipeline is lifted and aligned with external pipeline, the bolt hole on flange is naturally aligned, without the need for construction personnel to repeatedly fine-tune rotating pipeline in high altitude or assembly process, significantly improve assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of HVAC equipment installation technology, specifically relating to a straightening device for HVAC equipment installation projects. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) is an integral part of building construction, encompassing heating, ventilation, and air conditioning. Building HVAC is a comprehensive system engineering project involving multiple aspects such as temperature, humidity, air cleanliness, airflow velocity, and pressure both inside and outside the building. HVAC systems play a crucial role in the design, construction, and use of buildings. HVAC equipment primarily refers to the HVAC system, responsible for controlling indoor temperature, humidity, and air quality, covering the three core functions of heating, ventilation, and air conditioning.

[0003] When installing HVAC equipment, multiple pipes need to be assembled together to form an air passage. During assembly, not only must the pipes be aligned, but the bolt holes on the flanges at the pipe ends must also be aligned. This allows installers to quickly connect the flanges on two pipes together with bolts after adjusting the pipes, thus enabling the two pipes to be assembled. However, currently, when aligning pipes, only one pipe can be raised to a suitable height, meaning only two pipes can be aligned at a time. The bolt holes on the flanges at the pipe ends cannot be quickly aligned, which to some extent affects the assembly efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a straightening device for HVAC equipment installation projects.

[0005] The technical solution adopted to solve the above-mentioned technical problems is: a straightening device for HVAC equipment installation projects, comprising:

[0006] Two base frames are provided, with uprights vertically mounted on the top of each base frame. The two uprights on the same side of the two base frames share a common crossbeam, which is horizontally slidably connected to the two uprights. A clamping mechanism is provided on the uprights, and a fixing seat is mounted on the crossbeam.

[0007] A lifting cylinder is vertically mounted on the fixed base, and the cylinder rod of the lifting cylinder is connected to the lifting seat. The top of the lifting seat is provided with a clearance groove.

[0008] The lifting seat has a horizontal sliding hole, and a sliding rod is slidably inserted into the sliding hole. One end of the sliding rod is vertically fixed to a fixing sleeve, and a lifting rod passes through the fixing sleeve. The upper end of the lifting rod is fixed to an anti-misalignment pin for inserting into the flange bolt hole at the end of the pipe.

[0009] Furthermore, the inner walls on both sides of the clearance groove are horizontally rotatably connected to support rollers.

[0010] Furthermore, a stop nut is sleeved at the lower end of the lifting rod, and an elastic element is provided between the stop nut and the fixed sleeve. The elastic element has a downward elastic resisting force on the stop nut.

[0011] Furthermore, the elastic element is a spring wrapped around the periphery of the lifting rod, with both ends of the spring elastically abutting against the stop nut and the fixing sleeve, respectively.

[0012] Furthermore, the periphery of the lifting rod is vertically fixed with a protruding ridge, and the inner wall of the central hole of the fixing sleeve is provided with a slot for the protruding ridge to pass freely.

[0013] Furthermore, the lifting seat is vertically provided with a fastening pin, and the periphery of the sliding rod is provided with an oblong hole for the lower end of the fastening pin to be inserted.

[0014] Furthermore, the clamping mechanism includes two mounting seats mounted on the upright from top to bottom, an adjusting seat connected to the mounting seat, and a clamping block rotatably connected to the adjusting seat. The four clamping blocks on the same side of the two uprights form a clamping space for clamping the pipe.

[0015] Furthermore, the adjusting seat is provided with a clamping bolt for pressing against the clamping block to limit the rotation of the clamping block.

[0016] Furthermore, an adjusting cylinder is installed on the upright frame, with the tail end of the cylinder body mounted on the upright frame and the cylinder rod of the adjusting cylinder connected to the crossbeam.

[0017] Furthermore, the bottom of the base frame is equipped with casters.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, by setting a movable anti-fooling pin, it is inserted into the bolt hole of the flange when the pipe is supported on the roller and rotates, thereby pre-fixing the angle of the pipe before adjusting the pipe height. When the pipe is lifted and aligned with the external pipe, the bolt holes on the flange are naturally aligned, eliminating the need for construction personnel to repeatedly fine-tune and rotate the pipe at height or during assembly, significantly improving assembly efficiency;

[0020] 2. This utility model incorporates an elastic floating structure consisting of a spring, a stop nut, and a lifting rod. When clamping and centering the pipe, the pipe's ascent causes the anti-misalignment pin to rise and compress the spring to store energy. After the flange connection bolts are in place, the operator only needs to push the sliding rod to disengage the anti-misalignment pin from the hole. Under the spring force, the lifting rod will automatically reset and move downwards, eliminating the need for manual lifting or resetting, making operation simple and quick.

[0021] 3. In this utility model, the pipe can be automatically centered under the clamping force through the clamping action of the clamping block, ensuring the alignment accuracy of the pipe axis; the support roller on the lifting seat allows the pipe to rotate circumferentially in the supported state, making it convenient for construction personnel to easily rotate the pipe to find the bolt hole position, reducing labor intensity. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a straightening device used in the installation of HVAC equipment according to this utility model;

[0023] Figure 2 yes Figure 1 A diagram illustrating the positional relationships from a first-person perspective.

[0024] Figure 3 yes Figure 1 A diagram illustrating the positional relationships from a second-person perspective;

[0025] Figure 4 This is a schematic diagram showing the positional relationship of the lifting cylinder, lifting seat, and sliding rod after assembly in this utility model.

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of the positional relationship of a local structure at point A in the middle;

[0027] Figure 6 yes Figure 4 A diagram illustrating the positional relationship from another perspective;

[0028] Figure 7 This is a schematic diagram of the lifting seat in this utility model.

[0029] Reference numerals in the attached diagram: 1. Base frame; 2. Casters; 3. Crossbeam; 4. Mounting base; 5. Clamping block; 6. Lifting seat; 7. Lifting cylinder; 8. Fixed seat; 9. Adjusting cylinder; 10. Upright frame; 11. Adjusting seat; 12. Sliding rod; 13. Waist-shaped hole; 14. Support roller shaft; 15. Fastening pin; 16. Lifting rod; 17. Anti-fool pin; 18. Fixing sleeve; 19. Spring; 20. Locking nut; 21. Raised ridge; 22. Sliding hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] like Figures 1-7 As shown, this embodiment provides: a straightening device for HVAC equipment installation engineering, including two base frames 1, each of the bottom ends of the base frame 1 along its length is equipped with a caster wheel 2, and each of the top ends of the base frame 1 along its length is vertically equipped with a support frame 10. The two support frames 10 on the same side of the two base frames 1 are provided with a crossbeam 3. The length direction of the crossbeam 3 is perpendicular to the length direction of the base frame 1. Multiple linear rails are installed at each end of the length direction of the crossbeam 3. A slider is installed on the support frame 10. The slider cooperates with the corresponding linear rail to make the crossbeam 3 slide horizontally on the two adjacent support frames 10. A fixing seat 8 is installed on the crossbeam 3.

[0032] Combination Figures 1 to 3 As shown, the upright frame 10 has two mounting seats 4 installed from top to bottom. The mounting seats 4 are connected to the adjusting seats 11 by screws. The adjusting seats 11 are rotatably connected to the clamping blocks 5 by the mounting pivot. The adjusting seats 11 are provided with a clamping bolt. The clamping blocks 5 are clamped by the clamping bolt, so that the clamping blocks 5 will not rotate on their own. The four clamping blocks 5 on the same side of the two upright frames 10 are arranged correspondingly and form a clamping space for clamping the pipe. The upright frame 10 is equipped with an adjusting cylinder 9. The tail end of the cylinder body of the adjusting cylinder 9 is installed on the upright frame 10, and the cylinder rod of the adjusting cylinder 9 is connected to the crossbeam 3. In this way, by adjusting the cylinder rod of the adjusting cylinder 9 to extend or shorten, the two upright frames 10 on the same side of the corresponding base frame 1 will move synchronously towards or away from each other. Due to the universal wheels 2 installed at the bottom of the base frame 1, the two base frames 1 can move synchronously, so that the lateral distance between the two upright frames 10 can be adjusted, that is, the clamping space can be reduced or expanded, so that pipes with different outer diameters can be clamped.

[0033] Combination Figures 1 to 7 As shown, and please refer to the following: Figures 4 to 6A lifting cylinder 7 is vertically mounted on the top of the fixed base 8. The cylinder rod of the lifting cylinder 7 is connected to the lifting base 6. The top of the lifting base 6 has a clearance groove. The inner walls of the clearance groove are inclined, and a support roller shaft 14 is horizontally rotatably connected on the inclined surface. The axial direction of the support roller shaft 14 is parallel to the length direction of the base frame 1. The lifting cylinder 7 is located at the center of two adjacent uprights 10. A sliding hole 22 in the form of a through hole is horizontally opened on the lifting base 6. A sliding rod 12 is slidably inserted in the sliding hole 22. A fixed sleeve 18 is vertically fixed to the end of the sliding rod 12 away from the crossbeam 3. The axial direction of the fixed sleeve 18 is perpendicular to the axial direction of the sliding rod 12. A lifting rod 16 is coaxially passed through the fixed sleeve 18. The lifting rod 16 can slide freely up and down in the middle hole of the fixed sleeve 18. A counter-pin 17 is horizontally fixed to the upper end of the lifting rod 16. The outer diameter of the counter-pin 17 matches the diameter of the bolt hole on the flange at the end of the pipe.

[0034] Combination Figures 4 to 6 As shown, a protruding rib 21 is vertically fixed to the periphery of the lifting rod 16. A slot is provided on the inner wall of the central hole of the fixing sleeve 18 for the protruding rib 21 to pass freely. The protruding rib 21 slides up and down in the slot, so that the lifting rod 16 will not rotate on its own in the central hole of the fixing sleeve 18. A stop nut 20 is threadedly fitted to the lower end of the lifting rod 16. An elastic element is provided between the stop nut 20 and the fixing sleeve 18. The elastic element has a downward elastic abutting force on the stop nut 20. Specifically, the elastic element is a spring 19 wrapped around the periphery of the lifting rod 16. The two ends of the spring 19 elastically abut the stop nut 20 and the fixing sleeve 18 respectively. A fastening pin 15 is vertically inserted through the lifting seat 6. A waist-shaped hole 13 is provided on the periphery of the sliding rod 12 for the lower end of the fastening pin 15 to be inserted. The fastening pin 15 can slide freely along the axial direction of the sliding rod 12 in the waist-shaped hole 13, so that the sliding rod 12 will not rotate circumferentially.

[0035] The working principle of this embodiment is as follows:

[0036] Use external cranes or winches and other hoisting equipment to hoist the pipe to be assembled onto the top of the lifting seat 6, with both ends of the pipe located between the uprights 10 on both sides of the base frame 1. Then slowly lower the pipe so that both ends of the pipe rest on the two lifting seats 6, and the pipe is supported by the support rollers 14. At this time, the pipe can rotate circumferentially on the support rollers 14.

[0037] The operator pushes the sliding rod 12, causing it to move towards the end of the pipe and bringing the anti-misalignment pin 17 as close as possible to the end face of the pipe end flange. Then, the pipe is rotated, and the pipe rotates circumferentially on the support roller 14, so that the anti-misalignment pin 17 can correspond to one of the bolt holes on the pipe end flange. Then, the operator continues to push the sliding rod 12, so that the anti-misalignment pin 17 is inserted into the bolt hole, thereby preventing the pipe from rotating circumferentially.

[0038] The lifting cylinder 7 is activated, and its cylinder rod extends, driving the lifting seat 6 to move upward and the pipeline upward. After moving upward into position, the four adjusting cylinders 9 are activated simultaneously, and their cylinder rods retract, causing the upright 10 to move towards the center of the crossbeam 3 along its length. This allows the clamping block 5 to abut against the outer wall of the pipeline and clamp it. During clamping, the pipeline will automatically center under the clamping force of the clamping block 5. After clamping, the cylinder rod of the lifting cylinder 7 retracts, driving the lifting seat 6 to move downward. At this point, the pipeline's height above the ground matches the height of the external pipeline. The upright 10 is then pushed to align the end of the pipeline with the end of the external pipeline. Since the anti-misalignment pin 17 is inserted into the bolt hole on the pipeline end flange, the bolt hole on the pipeline end flange is also aligned with the bolt hole on the external pipeline end flange, eliminating the need to rotate the pipeline to align the bolt holes.

[0039] In addition, when the pipe is clamped, the pipe will disengage from the lifting seat 6 and move upwards, while the anti-misalignment pin 17 remains inserted in the bolt hole of the pipe end flange. Therefore, the lifting rod 16 will move upwards as the pipe moves upwards, which will cause the spring 19 to be in a compressed state and accumulate elastic potential energy. After the ends of the two pipes are aligned, several bolts are used to connect several bolt holes on the pipe end flanges. Then, the sliding rod 12 is pushed in the opposite direction, causing the anti-misalignment pin 17 to disengage from the bolt hole. Then, under the action of the release of the elastic potential energy accumulated by the spring 19, the lifting rod 16 will move downwards. Finally, the remaining bolt holes are connected by bolts, thereby assembling and connecting the two pipes together.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model.

Claims

1. A straightening device for HVAC equipment installation projects, characterized in that, include: Two base frames (1), with a vertical support frame (10) installed on the top of each base frame (1). The two support frames (10) on the same side of the two base frames (1) are provided with a crossbeam (3). The crossbeam (3) is horizontally slidably connected to the two support frames (10). The support frame (10) is provided with a clamping mechanism. The crossbeam (3) is provided with a fixed seat (8). A lifting cylinder (7) is vertically mounted on the fixed base (8). The cylinder rod of the lifting cylinder (7) is connected to a lifting seat (6). The top of the lifting seat (6) is provided with a clearance groove. The lifting seat (6) has a horizontally opened sliding hole (22), and a sliding rod (12) is slidably inserted in the sliding hole (22). One end of the sliding rod (12) is vertically fixed to a fixing sleeve (18), and a lifting rod (16) is inserted through the fixing sleeve (18). The upper end of the lifting rod (16) is fixed to an anti-fool pin (17) for inserting into the bolt hole of the flange at the end of the pipe.

2. The straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, The inner walls on both sides of the clearance groove are horizontally rotatably connected to support rollers (14).

3. A straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, The lower end of the lifting rod (16) is fitted with a stop nut (20), and an elastic element is provided between the stop nut (20) and the fixed sleeve (18). The elastic element has a downward elastic resisting force on the stop nut (20).

4. A straightening device for HVAC equipment installation engineering according to claim 3, characterized in that, The elastic element is a spring (19) wrapped around the periphery of the lifting rod (16), and the two ends of the spring (19) elastically abut against the stop nut (20) and the fixing sleeve (18) respectively.

5. A straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, The lifting rod (16) is vertically fixed with a protruding rib (21) around its periphery, and the inner wall of the central hole of the fixing sleeve (18) is provided with a slot for the protruding rib (21) to pass freely.

6. A straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, The lifting seat (6) is vertically provided with a fastening pin (15), and the periphery of the sliding rod (12) is provided with an oblong hole (13) for the lower end of the fastening pin (15) to be inserted.

7. A straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, The clamping mechanism includes two mounting seats (4) mounted on the upright (10) from top to bottom. An adjusting seat (11) is connected to the mounting seat (4). A clamping block (5) is rotatably connected to the adjusting seat (11). The four clamping blocks (5) on the same side of the two uprights (10) form a clamping space for clamping the pipe.

8. A straightening device for HVAC equipment installation engineering according to claim 7, characterized in that, The adjusting seat (11) is provided with a clamping bolt for pressing against the clamping block (5) to limit the rotation of the clamping block (5).

9. A straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, An adjusting cylinder (9) is installed on the upright (10). The tail end of the cylinder body of the adjusting cylinder (9) is installed on the upright (10), and the cylinder rod of the adjusting cylinder (9) is connected to the crossbeam (3).

10. A straightening device for HVAC equipment installation engineering according to claim 1, characterized in that, The bottom of the base frame (1) is equipped with casters (2).

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