A semi-automatic welding device for ultrafiltration membrane shell

Abstract

The utility model discloses a kind of ultrafiltration membrane shell semi-automatic welding device, belong to welding device technical field, including base, auxiliary device and fixing device, the left and right ends of base are all provided with support frame, the periphery of support frame bottom is all provided with universal wheel;Auxiliary device includes fixed shaft and rolling bearing, the number of fixed shaft is two and symmetrically distributed on the front and back of support frame top, the number of rolling bearing is two groups, the number of each group rolling bearing is two and symmetrically distributed on the left and right sides of the outer surface of two fixed shafts.The ultrafiltration membrane shell semi-automatic welding device, when using, membrane shell lower part is contacted with four rolling bearings respectively, can drive membrane shell 360 degrees autorotation by external light force, so that the sealing condition of membrane shell body and membrane shell end cover can be intuitively checked to determine the location of membrane shell water leakage defect, and the defect can be treated, so as to reduce the labor intensity of workers and improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a semi-automatic welding device for ultrafiltration membrane housings. Background Technology

[0002] Ultrafiltration is a pressure-driven membrane separation technology. Ultrafiltration membranes can be used to separate bacteria, colloids, and impurities from wastewater, enabling industrial wastewater to meet discharge standards. Ultrafiltration membranes can also separate drinking water from industrial water, and the technology plays an increasingly important role in reverse osmosis pretreatment and drinking water treatment. However, ultrafiltration membrane housings can be damaged by unstable water pressure (too high or too low), leading to leakage. Furthermore, aging of the membrane housing and leakage at the sealing surface can also cause problems. These leakage defects are generally difficult to resolve.

[0003] Because the membrane housing is cylindrical, existing welding devices are generally not suitable for its use. Other suitable welding devices are generally expensive and complex to operate, and cannot meet the usage requirements well. Therefore, when the ultrafiltration membrane housing has a leakage defect, the membrane housing is usually replaced. Replacing the membrane housing is expensive and wastes resources seriously, which is not conducive to the path of sustainable development. Utility Model Content

[0004] To address the issues of high cost and complex operation that fail to meet user needs, this utility model provides a semi-automatic welding device for ultrafiltration membrane housings, the technical solution of which is as follows:

[0005] A semi-automatic welding device for ultrafiltration membrane housings includes a base, an auxiliary device, and a fixing device. Support frames are provided at both ends of the base, and casters are provided around the bottom of the support frames.

[0006] The auxiliary device includes fixed shafts and rolling bearings. There are two fixed shafts, which are symmetrically distributed on the front and back of the top of the support frame. There are two sets of rolling bearings, with two rolling bearings in each set, which are symmetrically distributed on the left and right sides of the outer surface of the two fixed shafts.

[0007] The fixing device includes a fixed frame, a movable frame, and a clamping plate. The fixed frame is located on the front of the outer surface of the base, the movable frame is located on the side of the outer surface of the fixed frame away from the base, and the clamping plate is located on the right side of the outer surface of the movable frame.

[0008] The lower part of the membrane housing is in contact with four rolling bearings. With a slight external force, the membrane housing can be rotated 360 degrees, which allows for a direct inspection of the sealing condition between the membrane housing body and the membrane housing end cap, thus identifying the location of any leakage defects and addressing them accordingly.

[0009] Preferably, the top of the support frame is arc-shaped, the number of casters is four and they are symmetrically distributed, and the rolling bearing is fixedly installed on the outer surface of the fixed shaft.

[0010] Preferably, the fixing frame is L-shaped, and the inner side of the clamping plate is provided with a groove.

[0011] Preferably, the front and back surfaces of the clamping plate are each provided with a bolt that passes through the clamping plate and extends into the inner side of the groove, and the inner side of the clamping plate is provided with a threaded groove for threaded connection with the bolt.

[0012] Preferably, the back of the fixed frame is provided with a threaded rod that passes through the fixed frame and the movable frame in sequence and extends to the outside of the movable frame. The interior of both the fixed frame and the movable frame is provided with a rotating hole that matches the size of the threaded rod.

[0013] Preferably, the front and back surfaces of the threaded rod are threaded with nuts, and there are two nuts, which are respectively attached to the movable frame and the fixed frame.

[0014] Preferably, a support rod is provided on the right side of the back of the base, and a placement platform is provided on the top of the support rod.

[0015] Preferably, a push-pull handle is provided in the middle of the back of the base, and the push-pull handle is inclined.

[0016] The angle of the movable frame and the welding gun can be easily adjusted so that the nozzle of the welding gun corresponds to the defect in the film shell, thereby reducing the labor intensity of employees and improving work efficiency. Beneficial effects

[0017] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0018] 1. In use, the lower part of the ultrafiltration membrane housing is in contact with four rolling bearings. With a slight external force, the membrane housing can be rotated 360 degrees. This allows for a direct inspection of the sealing condition between the membrane housing body and the membrane housing end cap, thus identifying the source of leakage defects and addressing them accordingly.

[0019] 2. This semi-automatic welding device for ultrafiltration membrane housings can easily fix the welding gun by using clamps and bolts, and adjust the angle of the movable frame and the welding gun by tightening or loosening the nuts, so that the nozzle of the welding gun corresponds to the defect of the membrane housing. Then, by contacting the membrane housing with the PVC welding rod and heating the welding gun at the same time, a firm and sealed effect is achieved by welding the membrane housing. This can reduce the labor intensity of employees and thus improve work efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a semi-automatic welding device for ultrafiltration membrane housing according to this utility model;

[0022] Figure 2 This is a front view structural schematic diagram of a semi-automatic welding device for ultrafiltration membrane housing according to this utility model;

[0023] Figure 3 This is a left-side structural schematic diagram of a semi-automatic welding device for ultrafiltration membrane housings according to this utility model.

[0024] In the diagram, 1 is the base; 2 is the support frame; 3 is the caster wheel; 4 is the fixed shaft; 5 is the rolling bearing; 6 is the fixed frame; 7 is the movable frame; 8 is the clamping plate; 9 is the threaded rod; 10 is the support rod; and 11 is the push-pull handle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] like Figure 1 As shown, a semi-automatic welding device for ultrafiltration membrane housings includes a base 1, an auxiliary device, and a fixing device. Support frames 2 are provided at both ends of the base 1, and casters 3 are provided around the bottom of the support frames 2.

[0027] Specifically, a support rod 10 is provided on the right side of the back of the base 1, and a platform is provided on the top of the support rod 10 for temporarily placing auxiliary tools and PVC welding rods for convenient operation.

[0028] In this embodiment, a push-pull handle 11 is provided in the middle of the back of the base 1. The push-pull handle 11 is inclined, and the whole body can be moved easily by holding the inclined push-pull handle 11.

[0029] like Figure 1-3 As shown, the auxiliary device includes a fixed shaft 4 and rolling bearings 5. There are two fixed shafts 4, which are symmetrically distributed on the front and back of the top of the support frame 2. There are two sets of rolling bearings 5, with two rolling bearings 5 ​​in each set, which are symmetrically distributed on the left and right sides of the outer surface of the two fixed shafts 4.

[0030] In this embodiment, the top of the support frame 2 is arc-shaped, and there are four casters 3 symmetrically distributed. The rolling bearing 5 is fixedly installed on the outer surface of the fixed shaft 4. With a slight external force, the membrane shell can be rotated 360 degrees, so that the sealing condition between the membrane shell body and the membrane shell end cap can be directly checked, thereby determining the location of the membrane shell leakage defect and addressing the defect.

[0031] like Figure 1-3 As shown, the fixing device includes a fixed frame 6, a movable frame 7 and a clamping plate 8. The fixed frame 6 is located on the front of the outer surface of the base 1, the movable frame 7 is located on the side of the outer surface of the fixed frame 6 away from the base 1, and the clamping plate 8 is located on the right side of the outer surface of the movable frame 7.

[0032] In this embodiment, the fixing frame 6 is L-shaped, and the inner side of the clamping plate 8 is provided with a groove. Both the front and back sides of the outer surface of the clamping plate 8 are provided with a bolt that passes through the clamping plate 8 and extends to the inner side of the groove. The inner side of the clamping plate 8 is provided with a threaded groove that is threaded to the bolt. The welding gun is placed in the inner side of the groove, and the welding gun can be easily fixed by turning the bolt to move it closer to the welding gun.

[0033] like Figure 1 As shown, a threaded rod 9 is provided on the back of the fixed frame 6, with one end passing through the fixed frame 6 and the movable frame 7 and extending to the outside of the movable frame 7. The fixed frame 6 and the movable frame 7 are both provided with rotating holes that are adapted to the size of the threaded rod 9. Nuts are threaded to both the front and back of the outer surface of the threaded rod 9. There are two nuts, which are respectively fitted to the movable frame 7 and the fixed frame 6.

[0034] In this embodiment, when it is necessary to adjust the angle of the movable frame 7, the nut is turned so that it does not contact the fixed frame 6 or the movable frame 7, that is, the fixation of the movable frame 7 is canceled. Then the movable frame 7 is rotated to the desired angle and the nut is reset.

[0035] The method of using this utility model is as follows:

[0036] During use, the lower part of the membrane housing contacts four rolling bearings 5 ​​respectively. By applying a light force from the outside, the membrane housing can be rotated 360 degrees. This allows for a direct inspection of the sealing condition between the membrane housing body and the membrane housing end cap, thus identifying the location of any leaks. The defect is positioned at the top. After fixing the welding gun, the angle of the movable frame 7 and the welding gun is adjusted so that the nozzle of the welding gun corresponds to the defect in the membrane housing. This allows the PVC welding rod to contact the defect while the welding gun heats up, achieving a firm and sealed weld on the membrane housing.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A semi-automatic welding device for ultrafiltration membrane housings, characterized in that, include: The base (1), auxiliary device and fixing device are provided. Support frames (2) are provided at both the left and right ends of the base (1). Universal wheels (3) are provided around the bottom of the support frame (2). The auxiliary device includes a fixed shaft (4) and rolling bearings (5). There are two fixed shafts (4) and they are symmetrically distributed on the front and back of the top of the support frame (2). There are two sets of rolling bearings (5), and each set has two rolling bearings (5) and they are symmetrically distributed on the left and right sides of the outer surface of the two fixed shafts (4). The fixing device includes a fixed frame (6), a movable frame (7) and a clamp (8). The fixed frame (6) is located on the front of the outer surface of the base (1), the movable frame (7) is located on the side of the outer surface of the fixed frame (6) away from the base (1), and the clamp (8) is located on the right side of the outer surface of the movable frame (7).

2. The semi-automatic welding device for ultrafiltration membrane housings according to claim 1, characterized in that, The top of the support frame (2) is arc-shaped, the number of the universal wheels (3) is four and they are symmetrically distributed, and the rolling bearing (5) is fixedly installed on the outer surface of the fixed shaft (4).

3. The semi-automatic welding device for ultrafiltration membrane housings according to claim 1, characterized in that, The fixing frame (6) is L-shaped, and the inner side of the clamp (8) is provided with a groove.

4. The semi-automatic welding device for ultrafiltration membrane housings according to claim 3, characterized in that, Both the front and back sides of the outer surface of the clamping plate (8) are provided with a bolt that passes through the clamping plate (8) and extends to the inside of the groove. The inner side of the clamping plate (8) is provided with a threaded groove that is threadedly connected to the bolt.

5. The semi-automatic welding device for ultrafiltration membrane housings according to claim 1, characterized in that, The back of the fixed frame (6) is provided with a threaded rod (9) that passes through the fixed frame (6) and the movable frame (7) in sequence and extends to the outside of the movable frame (7). The fixed frame (6) and the movable frame (7) are both provided with rotating holes that are adapted to the size of the threaded rod (9).

6. The semi-automatic welding device for ultrafiltration membrane housings according to claim 5, characterized in that, Nuts are threaded onto both the front and back sides of the outer surface of the threaded rod (9). There are two nuts, which are respectively attached to the movable frame (7) and the fixed frame (6).

7. The semi-automatic welding device for ultrafiltration membrane housings according to claim 1, characterized in that, A support rod (10) is provided on the right side of the back of the base (1), and a placement platform is provided on the top of the support rod (10).

8. The semi-automatic welding device for ultrafiltration membrane housings according to claim 1, characterized in that, A push-pull handle (11) is provided in the middle of the back of the base (1), and the push-pull handle (11) is inclined.

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