Spraying frame for water tightness test

Abstract

The utility model provides a water tightness test spraying frame, which belongs to the technical field of water tightness tests and comprises a connecting frame and a plurality of connecting pieces. The connecting frame is in an arch shape and covers the upper portion and the two sides of the air conditioning unit. Each connecting piece is provided with an inserting part used for being connected with the corresponding connecting frame and a clamping part used for being connected with the corresponding spraying pipe. Each inserting part is provided with a positioning piece, the positioning piece has an elastic degree of freedom which moves in the direction perpendicular to the inserting direction of the inserting part, and when the inserting parts are connected with the connecting frame in an inserting mode, the positioning pieces partially protrude out of the inserting parts and are connected to the connecting frame in a clamped mode so as to lock the inserting parts. According to the water tightness test spraying frame provided by the utility model, when the layout of the spraying pipes needs to be adjusted, only the inserting parts of the connecting pieces need to be pulled out from the connecting frames, and proper positions on the connecting pieces are selected again to be inserted, so that the trouble that bolts need to be tightened or loosened one by one in the traditional bolt connection is avoided; the time for adjusting the layout of the spraying pipe is greatly shortened, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of watertightness testing technology, and more specifically, it relates to a watertightness testing spray frame. Background Technology

[0002] As a crucial component of modern urban public transportation, the subway's air conditioning system plays a vital role in ensuring the normal operation of trains and the comfort of passengers. Among the many performance indicators of subway air conditioning units, the reliability of waterproofing directly affects the service life, operational stability, and safety of the subway operation. Currently, the industry primarily uses a spray method to test the water tightness of air conditioning units.

[0003] The existing spray booth uses a steel frame structure, with spray pipes mounted on the frame via clamps. During water tightness testing, a transport trolley moves the air conditioning units into the spray booth, where water is sprayed from the nozzles on the spray pipes to test the units. However, subway air conditioning units come in various models and specifications. To ensure even water coverage of the unit's surface, the layout of the spray pipes on the frame needs adjustment. The clamps and frame are bolted together, requiring workers to manually install and remove multiple bolts, making the adjustment of the spray pipe layout inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a watertightness test spray frame, which facilitates the adjustment of the layout of the spray pipes on the frame.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a watertightness test spray frame for installing spray pipes for conducting watertightness tests on air conditioning units, comprising:

[0006] The connecting frame, in an arched shape, covers the top and sides of the air conditioning unit; and

[0007] Multiple connectors each have a plug-in portion for connecting the connecting frame and a clamping portion for connecting the spray pipe;

[0008] Each of the plug-in portions is provided with a positioning member, which has an elastic degree of freedom to move perpendicular to the plug-in direction. When the plug-in portion is plugged into the connecting frame, the positioning member protrudes from the plug-in portion and is engaged with the connecting frame to lock the plug-in portion.

[0009] In one possible implementation, the positioning element includes:

[0010] The positioning post is slidably disposed on the plug-in part, and the sliding direction is perpendicular to the plug-in direction of the plug-in part;

[0011] The first spring has its two ends fixed to the positioning post and the insertion part, respectively, and is sleeved on the positioning post to push the positioning post out of the insertion part.

[0012] In one possible implementation, the positioning post has a spherical portion, and the connecting frame has a plurality of slots adapted to engage with the spherical portion;

[0013] When the spherical portion engages with the slot, the first spring is in its natural state.

[0014] In one possible implementation, the plug-in portion is square, and the connecting frame has a plurality of plug holes suitable for plugging into the plug-in portion;

[0015] Each of the aforementioned sockets contains two slots, which are located on two adjacent surfaces of the socket.

[0016] In one possible implementation, the clamping part includes:

[0017] Two clamping plates are respectively hinged to both sides of the connector and form a clamping space for clamping the spray pipe;

[0018] Two spring plates correspond one-to-one with the clamping plates; one end of each spring plate is fixed to the connecting member, and the other end abuts against the clamping plate, which is used to push the two clamping plates to rotate in opposite directions.

[0019] In one possible implementation, the clamping part further includes:

[0020] Two guide plates are fixed to the ends of the two clamps away from the connector, and are tilted in opposite directions.

[0021] In one possible implementation, the connector is provided with a limiting member, the limiting member having an elastic degree of freedom to move parallel to the insertion direction of the insertion part, one end of the limiting member extending into the clamping space, and the other end facing the positioning member;

[0022] When the clamping part clamps the spray pipe, the spray pipe pushes the limiting member to move until it abuts against the positioning member, thereby restricting the positioning member from moving into the insertion part.

[0023] In one possible implementation, the limiting member includes:

[0024] The limiting post is slidably disposed on the connector, and the sliding direction is the same as the insertion direction of the plug-in part;

[0025] The second spring is fixed at both ends to the connecting piece and the limiting post respectively, and is sleeved on the limiting post;

[0026] When the second spring is in its natural state, the limiting post avoids the positioning member, and the positioning member can move into the insertion part.

[0027] In one possible implementation, the connecting frame includes:

[0028] Top frame;

[0029] Two side frames are respectively hinged to both sides of the top frame;

[0030] Two sets of adjusting components are respectively installed on the two side frames for adjusting the angle between the side frames and the top frame;

[0031] The number of adjustment components in each group is at least two.

[0032] In one possible implementation, the adjusting element includes:

[0033] The first connecting tube is hinged to the side frame;

[0034] The second connecting pipe is hinged to the top frame;

[0035] The double-ended screw has a first thread and a second thread with opposite directions of rotation. The first thread is threaded to the first connecting pipe, and the second thread is threaded to the second connecting pipe.

[0036] This utility model provides a watertightness test spray frame, which, compared with the prior art, offers the following advantages: When adjusting the spray pipe layout for different models and specifications of subway air conditioning units, workers only need to pull the connector's insertion part out of the connecting frame and re-insert it into the appropriate position on the connector. When the connector's insertion part is inserted into the connecting frame, the positioning part protrudes from the surface of the insertion part and engages with the connecting frame, thus automatically locking the insertion part and ensuring its stability on the connecting frame. This insertion method also avoids the hassle of tightening or loosening bolts individually, as required by traditional bolt connections, significantly reducing the time required for spray pipe layout adjustments and improving work efficiency. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0038] Figure 1 A schematic diagram of the overall structure of the water tightness test spray frame provided in this embodiment of the utility model.

[0039] Figure 2 This is a schematic diagram of the connector provided in an embodiment of the present utility model.

[0040] Figure 3 A partial cross-sectional view of the water tightness test spray frame provided in an embodiment of this utility model.

[0041] Figure 4 for Figure 1 A magnified structural diagram of part A in the middle.

[0042] In the diagram: 1. Connecting frame; 11. Slot; 12. Insertion hole; 13. Top frame; 14. Side frame; 15. Adjusting component; 151. First connecting pipe; 152. Second connecting pipe; 153. Double-ended screw; 1531. First thread; 1532. Second thread; 2. Connecting component; 21. Insertion part; 22. Clamping part; 221. Clamping plate; 222. Spring plate; 223. Guide plate; 4. Positioning component; 41. Positioning post; 411. Spherical part; 42. First spring; 5. Limiting component; 51. Limiting post; 52. Second spring; 6. Air conditioning unit; 7. Spray pipe. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects 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.

[0044] Please see Figure 1 and Figure 2 This invention provides a watertightness test spray frame. A watertightness test spray frame is used to install spray pipes 7 for watertightness testing of an air conditioning unit 6, and includes a connecting frame 1 and multiple connecting parts 2. The connecting frame 1 is arched and covers the top and sides of the air conditioning unit 6. Each connecting part 2 has a plug-in portion 21 for connecting to the connecting frame 1 and a clamping portion 22 for connecting to the spray pipe 7. Each plug-in portion 21 is provided with a positioning element 4, which has an elastic degree of freedom to move perpendicular to the plug-in direction of the plug-in portion 21. When the plug-in portion 21 is plugged into the connecting frame 1, the positioning element 4 partially protrudes from the plug-in portion 21 and engages with the connecting frame 1 to lock the plug-in portion 21.

[0045] Specifically, when adjusting the layout of the spray pipes 7 for different models and specifications of subway air conditioning units 6, workers only need to pull the plug-in part 21 of the connector 2 out of the connecting frame 1 and re-insert it into the appropriate position on the connecting frame 1. When the plug-in part 21 of the connector 2 is inserted into the connecting frame 1, part of the positioning part 4 will protrude from the surface of the plug-in part 21 and engage with the connecting frame 1, thereby achieving automatic locking of the plug-in part 21 and ensuring the stability of the plug-in part 21 on the connecting frame 1. At the same time, this insertion method also avoids the trouble of tightening or loosening bolts one by one in traditional bolt connections, greatly shortening the time for adjusting the layout of the spray pipes 7, thereby improving work efficiency.

[0046] In some embodiments, see Figure 3 The positioning element 4 includes a positioning post 41 and a first spring 42. The positioning post 41 is slidably disposed on the insertion part 21, and the sliding direction is perpendicular to the insertion direction of the insertion part 21. The two ends of the first spring 42 are fixed to the positioning post 41 and the insertion part 21 respectively, and are sleeved on the positioning post 41 to push the positioning post 41 out of the insertion part 21.

[0047] When the insertion part 21 of the connector 2 is inserted into the connecting frame 1, the positioning post 41 is squeezed by the connecting frame 1, causing the positioning post 41 to retract into the insertion part 21. At this time, the first spring 42 is compressed. Once the insertion part 21 is fully inserted, the compression on the positioning post 41 disappears, and under the elastic force of the first spring 42, the positioning post 41 automatically extends out of the insertion part 21, achieving engagement with the connecting frame 1.

[0048] In actual installation, when the staff inserts the plug part 21 into the connecting frame 1, there is no need to operate the positioning post 41. The staff only needs to insert the plug part 21 into the appropriate position, and the positioning post 41 will quickly pop out and lock under the action of the first spring 42. The operation is simple and efficient, reducing manual operation steps and improving installation efficiency.

[0049] In some embodiments, see Figure 3 The positioning post 41 has a spherical part 411, and the connecting frame 1 has a plurality of slots 11 suitable for engaging with the spherical part 411. When the spherical part 411 engages with the slots 11, the first spring 42 is in its natural state.

[0050] The curved surface of the spherical part 411 makes it easier for the positioning post 41 to retract into the insertion part 21 when it is squeezed by the connecting frame 1. At the same time, when the insertion part 21 is pulled out from the connecting frame 1, the positioning post 41 is easier to disengage from the slot 11, reducing the difficulty of installation and disassembly.

[0051] In some embodiments, see Figure 2 and Figure 3The plug-in part 21 is square, and the connecting frame 1 has a plurality of plug holes 12 suitable for plugging into the plug-in part 21. The plug holes 12 are square holes. Each plug hole 12 has two slots 11, which are located on two adjacent surfaces of the plug hole 12.

[0052] The tight fit between the square plug 21 and the square socket 12 effectively restricts the rotation of the plug 21 within the socket 12, ensuring that the position of the spray pipe 7 is fixed and that the spray water flow can spray the air conditioning unit 6 in a predetermined direction and range, thereby improving the accuracy of the water tightness test.

[0053] The two slots 11 allow the connector 2 to be inserted into the connector frame 1 at different angles. When the connector 2 is connected to the slot 11 located on the horizontal plane in the socket 12, the spray pipes 7 on the connector 2 are arranged vertically. When the connector 2 is connected to the slot 11 located on the vertical plane in the socket 12, the spray pipes 7 on the connector 2 are arranged horizontally. By connecting with the slots 11 at different positions, the arrangement of the spray pipes 7 can be changed, thereby facilitating the adjustment of the layout of the spray pipes 7.

[0054] In some embodiments, see Figure 2 and Figure 3 The clamping part 22 includes two clamping plates 221 and two spring plates 222. The two clamping plates 221 are respectively hinged to both sides of the connector 2, forming a clamping space for clamping the spray pipe 7. The two spring plates 222 correspond one-to-one with the two clamping plates 221. One end of the spring plate 222 is fixed to the connector 2, and the other end abuts against the clamping plate 221, for pushing the two clamping plates 221 to rotate in opposite directions.

[0055] When actually installing the sprinkler pipe 7, the staff only needs to place the sprinkler pipe 7 between the two clamps 221. The clamps 221 will quickly and automatically clamp the sprinkler pipe 7 under the action of the spring plate 222. No additional tools are needed for fastening, which greatly improves the installation efficiency of the sprinkler pipe 7, reduces the complexity of manual operation, and enables the staff to complete the installation of the sprinkler pipe 7 more quickly.

[0056] The continuous elastic force provided by the spring plate 222 ensures the clamping force of the clamping plate 221 on the spray pipe 7, keeping the spray pipe 7 firmly connected to the connector 2, preventing the spray pipe 7 from falling off the connector 2, ensuring the stable position of the spray pipe 7 during the test, and providing a reliable guarantee for the normal conduct of the water tightness test.

[0057] In some embodiments, see Figure 2 and Figure 3 The clamping part 22 also includes two guide plates 223. The two guide plates 223 are respectively fixed to the ends of the two clamping plates 221 away from the connector 2, and are inclined in opposite directions.

[0058] In actual installation, workers do not need to precisely align the position of the clamping plate 221. They only need to roughly align the spray pipe 7 with the opening between the guide plates 223 and follow the guidance of the guide plates 223 to smoothly put the spray pipe 7 into the clamping space. This effectively reduces the installation difficulty and improves the installation efficiency. Especially when multiple spray pipes 7 need to be installed, it can save a lot of installation time.

[0059] In some embodiments, see Figure 2 and Figure 3 The connector 2 is provided with a limiting member 5, which has an elastic degree of freedom to move parallel to the insertion direction of the insertion part 21. One end of the limiting member 5 extends into the clamping space, and the other end faces the positioning member 4. When the clamping part 22 clamps the spray pipe 7, the spray pipe 7 pushes the limiting member 5 to move until it abuts against the positioning member 4, thereby restricting the positioning member 4 from moving into the insertion part 21.

[0060] When the clamping part 22 clamps the spray pipe 7, the spray pipe 7 pushes the limiting member 5 to move until it abuts against the positioning member 4, thereby restricting the positioning member 4 from moving into the insertion part 21, thus forming a locking mechanism. Based on the positioning member 4 locking the insertion part 21 to the connecting frame 1, the limiting member 5 further enhances the stability of the connection. During the water tightness test, even if the positioning member 4 is affected by external vibrations and has a tendency to retract into the insertion part 21, the limiting member 5 can prevent the positioning member 4 from retracting, avoiding the insertion part 21 from detaching from the connecting frame 1. This ensures the stability of the spray frame throughout the test, improves the reliability of the water tightness test, and effectively prevents test errors or failures caused by loose connections.

[0061] In some embodiments, see Figure 3 The limiting member 5 includes a limiting post 51 and a second spring 52. The limiting post 51 is slidably mounted on the connecting member 2, and its sliding direction is the same as the insertion direction of the insertion part 21. The two ends of the second spring 52 are fixed to the connecting member 2 and the limiting post 51 respectively, and are sleeved on the limiting post 51. When the second spring 52 is in its natural state, the limiting post 51 avoids the positioning member 4, allowing the positioning member 4 to move into the insertion part 21.

[0062] When it is necessary to remove the connector 21 to adjust the layout of the spray pipe 7, the positioning piece 4 can move into the connector 21 without interference from the limiting post 51, making it convenient for workers to remove the connector 21 from the connecting frame 1. After the spray pipe 7 is installed, the spray pipe 7 pushes the limiting post 51 to move, so that it abuts against the positioning piece 4 to lock it in place. This ensures both operational flexibility during installation and adjustment and connection stability after installation, meeting the needs of different operational stages.

[0063] In some embodiments, see Figure 1 The connecting frame 1 includes a top frame 13, two side frames 14, and two sets of adjusting members 15. The two side frames 14 are hinged to both sides of the top frame 13. The two sets of adjusting members 15 are respectively disposed on the two side frames 14 and are used to adjust the angle between the side frames 14 and the top frame 13. Each set of adjusting members 15 has at least two members. The angle between the side frames 14 and the top frame 13 can be adjusted using the adjusting members 15, allowing the connecting frame 1 to better adapt to subway air conditioning units 6 with different shapes.

[0064] In some embodiments, see Figure 4 The adjusting component 15 includes a first connecting pipe 151, a second connecting pipe 152, and a double-ended screw 153. The first connecting pipe 151 is hinged to the side frame 14. The second connecting pipe 152 is hinged to the top frame 13. The double-ended screw 153 has a first thread 1531 and a second thread 1532 with opposite thread directions. The first thread 1531 is threaded to the first connecting pipe 151, and the second thread 1532 is threaded to the second connecting pipe 152.

[0065] When the double-ended screw 153 is rotated, since the first thread 1531 and the second thread 1532 rotate in opposite directions, the first connecting pipe 151 and the second connecting pipe 152 will move towards or away from each other along the axial direction of the double-ended screw 153, thereby causing the angle between the side frame 14 and the top frame 13 to change, so that the connecting frame 1 can adapt to the shape of different air conditioning units 6, ensuring the uniformity and accuracy of the spray coverage, and providing reliable basic conditions for the water tightness test.

[0066] The angle adjustment method using the double-ended screw 153 is very simple, allowing for easy adjustment of the angle between the side frame 14 and the top frame 13. Simultaneously, the threaded connection provides stable support after adjustment, keeping the angle between the side frame 14 and the top frame 13 fixed.

[0067] In summary, the watertightness test spray frame provided by this utility model, compared with the prior art, features a locking mechanism between the insertion part 21 of the connector 2 and the connecting frame 1 via the positioning element 4, significantly improving the convenience of adjusting the layout of the spray pipe 7. Traditionally, when adjusting the layout of the spray pipe 7, workers must perform tedious disassembly and assembly operations on multiple bolts, which is not only time-consuming but also physically demanding. In this technical solution, when layout adjustment is needed, workers only need to overcome the locking force of the positioning element 4, pull the insertion part 21 out of the connecting frame 1, and then re-insert it at a suitable location. The positioning element 4 will automatically lock the insertion part 21. The entire process is simple and quick, greatly saving time and labor costs in adjusting the layout of the spray pipe 7, and significantly improving work efficiency.

[0068] 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 watertightness test spray frame for installing spray pipes (7) for conducting watertightness tests on air conditioning units (6), characterized in that, include: The connecting frame (1) is arched above and on both sides of the air conditioning unit (6); as well as Multiple connectors (2) each have a plug-in portion (21) for connecting the connector (1) and a clamping portion (22) for connecting the spray pipe (7). Each of the plug-in portions (21) is provided with a positioning member (4). The positioning member (4) has an elastic degree of freedom to move perpendicular to the plug-in direction of the plug-in portion (21). When the plug-in portion (21) is plugged into the connecting frame (1), the positioning member (4) protrudes from the plug-in portion (21) and is locked onto the connecting frame (1) to lock the plug-in portion (21).

2. The watertightness test spray frame as described in claim 1, characterized in that, The positioning element (4) includes: The positioning post (41) is slidably disposed on the plug-in part (21), and the sliding direction is perpendicular to the plug-in direction of the plug-in part (21); The first spring (42) is fixed at both ends to the positioning post (41) and the insertion part (21) respectively, and is sleeved on the positioning post (41) to push the positioning post (41) out of the insertion part (21).

3. The watertightness test spray frame as described in claim 2, characterized in that, The positioning post (41) has a spherical part (411), and the connecting frame (1) has a plurality of slots (11) suitable for engaging with the spherical part (411). When the spherical part (411) engages with the slot (11), the first spring (42) is in its natural state.

4. The watertightness test spray frame as described in claim 3, characterized in that, The plug-in part (21) is square, and the connecting frame (1) has a plurality of plug holes (12) suitable for plugging into the plug-in part (21). The number of slots (11) in each of the sockets (12) is two, and they are located on two adjacent surfaces of the sockets (12).

5. A watertightness test spray frame as described in claim 1, characterized in that, The clamping part (22) includes: Two clamping plates (221) are respectively hinged to both sides of the connector (2) and form a clamping space for clamping the spray pipe (7); Two spring plates (222) correspond one-to-one with the clamping plate (221); one end of the spring plate (222) is fixed to the connector (2), and the other end abuts against the clamping plate (221) to push the two clamping plates (221) to rotate in opposite directions.

6. A watertightness test spray frame as described in claim 5, characterized in that, The clamping part (22) further includes: Two guide plates (223) are fixed to the ends of the two clamps (221) away from the connector (2) and are inclined in opposite directions.

7. A watertightness test spray frame as described in claim 5, characterized in that, The connector (2) is provided with a limiting member (5), which has an elastic degree of freedom to move parallel to the insertion direction of the insertion part (21). One end of the limiting member (5) extends into the clamping space, and the other end faces the positioning member (4). When the clamping part (22) clamps the spray pipe (7), the spray pipe (7) pushes the limiting member (5) to move to abut against the positioning member (4) to restrict the positioning member (4) from moving into the insertion part (21).

8. A watertightness test spray frame as described in claim 7, characterized in that, The limiting member (5) includes: The limiting post (51) is slidably disposed on the connector (2), and the sliding direction is the same as the insertion direction of the plug (21); The second spring (52) is fixed at both ends to the connector (2) and the limiting post (51) respectively, and is sleeved on the limiting post (51); When the second spring (52) is in its natural state, the limiting post (51) avoids the positioning member (4), and the positioning member (4) can move into the insertion part (21).

9. A watertightness test spray frame as described in claim 1, characterized in that, The connecting frame (1) includes: Top frame (13); Two side frames (14) are respectively hinged to both sides of the top frame (13); Two sets of adjusting components (15) are respectively set on the two side frames (14) for adjusting the angle between the side frames (14) and the top frame (13); The number of each set of adjustment elements (15) is at least two.

10. A watertightness test spray frame as described in claim 9, characterized in that, The adjusting member (15) includes: The first connecting tube (151) is hinged to the side frame (14); The second connecting pipe (152) is hinged to the top frame (13); The double-ended screw (153) has a first thread (1531) and a second thread (1532) with opposite thread directions. The first thread (1531) is threaded to the first connecting pipe (151), and the second thread (1532) is threaded to the second connecting pipe (152).

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