Grooved pipe fitting air tightness detection device
By designing an airtightness detection device including a base, a support frame, an air intake cover, a sliding frame, a control screw and a sealing plug, the problem of the existing technology being difficult to adapt to the airtightness detection of the grooved pipe fittings of different shapes and structures is solved, and a flexible and intuitive detection effect is achieved.
Patent Information
- Application Number
- CN202421326031.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The prior art is difficult to adapt to the airtightness detection of grooved pipe fittings of different shapes and structures, and the operation is troublesome, the observation is not intuitive, and it cannot adapt to the pipe fittings of multiple specifications.
An airtightness detection device including a base, a support frame, an air intake cover, a sliding frame, a control screw and a sealing plug is designed. Through an adjustable structure and a variety of connection methods, pipe fittings of different shapes and structures can be adapted, and the gas content can be visually detected through the cooperation of the airtight pipe, a piston rod and a scale line.
It realizes flexible and intuitive airtightness detection of grooved pipe fittings of different shapes and structures, adapts to pipe fittings of multiple specifications, and improves the convenience and accuracy of inspection.
Smart Images
Figure CN222635732U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe fitting processing, and more specifically, to an air tightness detection device for a groove pipe fitting. Background Art
[0002] Grooved pipe fittings are a type of connecting pipe fittings, which are widely used in the connection of gas and liquid pipelines. During the production and processing of hook-groove pipe fittings, in order to ensure the quality of the product, it is necessary to carry out air tightness testing after the pipe fittings are produced.
[0003] When testing air tightness, one end of the pipe is usually connected to the gas supply equipment, and the other end is blocked to make the pipe a sealed space, and gas is supplied to the inside for air tightness testing. Most common testing devices have fixed structures and can only test the air tightness of single-pass pipes, and cannot be adjusted. However, the shapes of some hook-groove pipes are not the same, and there will be bends. There are also some two-way and three-way pipes. The simple structure of the testing device cannot adapt to the testing of pipes with different structures, and the operation is too troublesome. Moreover, the common air tightness testing method is to put the pipe into the water and judge the air tightness status by observing the generation of bubbles. This method is more troublesome to operate, and the observation is not intuitive enough, which is not convenient for workers to use. In addition, the specifications of pipes vary, and the sizes of the pipe mouths of some pipes are not uniform. The testing device with a single structure cannot adapt, and the connection structure may leak. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the problems existing in the prior art, the utility model provides a groove pipe air tightness detection device to solve the technical problems mentioned in the background technology.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a groove pipe air tightness detection device, comprising a base, a support frame is provided at one end of the base, an air inlet cover is provided on the support frame, a sliding frame is provided on the base, a plurality of sliding frames are provided and are slidably arranged around the base, a control screw is provided on the sliding frame, the control screw is threadedly matched with the sliding frame, and a sealing plug is provided at one end of the control screw;
[0008] An airtight tube is provided at one end of the support frame, and piston rods are provided at both ends of the airtight tube. The piston rod cooperates with the airtight tube, and scale lines are provided on the piston rod. A ventilation pipe is provided in the middle of the airtight tube. One end of the ventilation pipe is connected to the inside of the airtight tube, and the other end is connected to the inside of the air intake cover.
[0009] The utility model is further configured as follows: the air intake cover includes a contact frame and a contact block, a first connector is provided at one end of the contact block, the contact block is detachably connected to the contact frame via the first connector, and ventilation holes are provided on the contact frame, the contact block and the first connector to facilitate replacement of the air intake cover structure.
[0010] The utility model is further configured such that the sealing plug includes a pressure frame and a sealing block, one end of the sealing block is provided with a second connecting head, one end of the pressure frame is rotatably connected to the control screw, and the other end is detachably connected to the second connecting head, so as to facilitate replacement of the sealing plug structure.
[0011] The utility model is further configured that sealing rings are provided at both ends of the contact block to ensure sealing.
[0012] The utility model is further configured such that a limiting sliding block is provided at the lower end of the sliding frame, and a limiting sliding groove is provided on the base, so as to facilitate the arrangement of multiple sets of sealing plug structures.
[0013] The utility model is further configured such that a lifting cylinder is rotatably connected to the base, a lifting screw is arranged in the lifting cylinder, the lifting screw cooperates with the internal thread of the lifting cylinder, and a support plate is arranged on the upper end of the lifting screw, providing an adjustable height support structure to facilitate supporting pipe fittings.
[0014] The utility model is further configured that a limiting rod is provided at the lower end of the support plate, a limiting cylinder is provided on the base, and the limiting rod and the limiting cylinder are slidably matched to ensure stable adjustment of the height of the support plate.
[0015] The utility model is further configured such that a lower fixing hoop is fixedly connected to the support plate, an upper fixing hoop is provided above the lower fixing hoop, and both ends of the upper fixing hoop cooperate with the lower fixing hoop through fixing bolts to make the placement of the pipe fitting more stable.
[0016] (III) Beneficial effects
[0017] Compared with the prior art, the utility model provides a groove pipe air tightness detection device, which has the following beneficial effects:
[0018] 1. The support frame and the air inlet cover are used to provide gas for the pipe fittings. The sliding frame is provided to support the sealing plug. The limiting slide groove and the limiting slider are used to make the sliding frame and the base slide together. The control screw and the sliding frame are used to apply force to the sealing plug, so that the multiple outlet ports of the hook groove pipe fittings can be blocked in different directions and positions, which is convenient for detecting different pipe fittings.
[0019] 2. By setting the coordination between the airtight tube, the piston rod and the scale lines, it is used for the gas detection structure. The airtight tube is connected to the air inlet cover through the vent pipe. By pushing the piston rod, the gas in the pipe can be pressurized. The gas content is displayed by the scale lines on another set of piston covers, which makes it easy to observe whether the internal gas is reduced, thereby facilitating the judgment of the airtightness of the pipe.
[0020] 3. The air inlet cover is formed by setting a contact frame and a contact block, and a detachable connection is achieved through the first connecting head. The sealing plug is formed by setting a pressure frame and a sealing block, and a detachable connection is achieved through the second connecting head, thereby facilitating the replacement of contact frames and sealing plugs with different structures and facilitating workers to test pipe fittings with different port specifications. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the front structure of a groove pipe air tightness detection device in the utility model;
[0022] Figure 2 This is a schematic diagram of the matching structure of the air inlet cover and the airtight pipe on the base of the utility model;
[0023] Figure 3 This is a schematic diagram of the matching structure after the air intake cover in the utility model is disassembled;
[0024] Figure 4 This is a schematic diagram of the matching structure after the sealing plug in the utility model is disassembled;
[0025] Figure 5 It is a schematic diagram of the matching structure between the bottom of the support plate and the lifting screw rod after the support plate is disassembled in the utility model.
[0026] In the figure: 1. base; 2. support frame; 3. air inlet cover; 4. sliding frame; 5. control screw; 6. sealing plug; 7. airtight tube; 8. piston rod; 9. scale line; 10. ventilation pipe; 11. contact frame; 12. contact block; 13. first connector; 14. vent hole; 15. pressure frame; 16. sealing block; 17. second connector; 18. sealing ring; 19. limit slider; 20. limit slide groove; 21. lifting cylinder; 22. lifting screw; 23. support plate; 24. limit rod; 25. limit cylinder; 26. lower fixing hoop; 27. upper fixing hoop. DETAILED DESCRIPTION
[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0030] See also Figure 1 and Figure 2 A groove pipe air tightness detection device comprises a base 1, a support frame 2 is provided at one end of the base 1, an air inlet cover 3 is provided on the support frame 2, a sliding frame 4 is provided on the base 1, a plurality of sliding frames 4 are provided and are slidably arranged around the base 1, a control screw 5 is provided on the sliding frame 4, the control screw 5 is threadedly matched with the sliding frame 4, and a sealing plug 6 is provided at one end of the control screw 5;
[0031] An airtight tube 7 is provided at one end of the support frame 2, and piston rods 8 are provided at both ends of the airtight tube 7. The piston rod 8 cooperates with the airtight tube 7, and a scale line 9 is provided on the piston rod 8. A ventilation pipe 10 is provided in the middle of the airtight tube 7. One end of the ventilation pipe 10 is connected to the inside of the airtight tube 7, and the other end is connected to the inside of the air intake cover 3.
[0032] In this embodiment, each device is supported by the base 1, and the pipe to be tested is placed on the base 1. One end of the pipe is connected to the air inlet cover 3 through the supporting air inlet pipe of the support frame 2. Then, the position of the corresponding sliding frame 4 is adjusted. The sliding frame 4 drives the control screw 5 and the sealing plug 6 to move so that the sealing plug 6 is aligned with the other ports of the pipe. Then, the control screw 5 is adjusted so that the control screw 5 cooperates with the sliding frame 4 and moves along the sliding frame 4 to push the sealing plug 6 to fit tightly against the port of the pipe.
[0033] More specifically, before using the equipment, one piston rod 8 is pulled to the outermost end, and the other piston rod 8 is pushed into the innermost end of the airtight tube 7. After the air inlet cover 3, the sealing plug 6 and the pipe fitting are tightly attached together, the interior of the pipe fitting is connected with the interior of the airtight tube 7 through the vent pipe 10, and the space formed by the airtight tube 7 and the pipe fitting is a closed space. The extended piston rod 8 is pushed to apply pressure to the air inside through the piston rod 8. If the sealing effect of the pipe fitting is good, the air inside will push the other piston rod 8 up due to the pressure. The two piston rods 8 are pushed repeatedly, and the scale lines 9 on the corresponding piston rods 8 are observed. If the data gradually decreases, or the piston rod 8 at the other end cannot rise, it means that air is lost inside the space and there is a problem with the airtightness of the pipe fitting.
[0034] See also Figure 1-Figure 3As an implementation method for adapting to various pipe fittings: the air inlet cover 3 includes a contact frame 11 and a contact block 12, a first connector 13 is provided at one end of the contact block 12, the contact block 12 is detachably connected to the contact frame 11 through the first connector 13, and a vent hole 14 is provided on the contact frame 11, the contact block 12 and the first connector 13.
[0035] Specifically, according to the specifications of the pipe fittings, a contact block 12 of appropriate size is selected, and the contact block 12 is fixed to the contact frame 11 through the first connector 13, so that the contact block 12 is connected to the corresponding pipe fitting, and the vent hole 14 between the contact frame 11 and the contact block 12 is in a connected state to ensure the transmission of gas.
[0036] Please refer to Figure 4 As a further implementation of the sealing plug 6 mechanism: the sealing plug 6 includes a pressure frame 15 and a sealing block 16, one end of the sealing block 16 is provided with a second connector 17, one end of the pressure frame 15 is rotatably connected to the control screw 5, and the other end is detachably connected to the second connector 17.
[0037] Specifically, according to the specifications of the pipe fitting, a sealing block 16 of appropriate size is selected, and the sealing block 16 is installed on the pressure frame 15 through the second connector 17. When the control screw 5 pushes the sealing plug 6 to move, the pressure frame 15 can rotate with the control screw 5 without being affected by the rotation of the control screw 5, and pushes the sealing block 16 to stably connect with the pipe fitting to block the port of the pipe fitting.
[0038] Please refer to Figure 3 As a further implementation of the contact block 12 mechanism: sealing rings 18 are provided at both ends of the contact block 12.
[0039] Specifically, sealing rings 18 are provided at both ends of the contact block 12 to ensure the sealing capability and improve the sealing effect between the pipe fitting and the airtight pipe 7 .
[0040] Please refer to Figure 1 As a further implementation of the sliding frame 4 mechanism: a limiting slider 19 is provided at the lower end of the sliding frame 4, and a limiting sliding groove 20 is provided on the base 1.
[0041] Specifically, the sliding frame 4 moves through the cooperation between the limit slider 19 and the limit slide groove 20. The limit slide groove 20 guides the limit slider 19 and ensures the stable movement of the limit slider 19 and the movable frame. Moreover, the limit slide groove 20 can accommodate multiple groups of limit sliders 19, which is convenient for driving the sealing plug 6 to cooperate with the pipe fittings through multiple groups of sliding frames 4 to adapt to pipe fittings with more ports.
[0042] Please refer to Figure 5As a further implementation of the supporting mechanism: a lifting cylinder 21 is rotatably connected to the base 1, a lifting screw 22 is arranged inside the lifting cylinder 21, the lifting screw 22 cooperates with the internal thread of the lifting cylinder 21, and a support plate 23 is arranged on the upper end of the lifting screw 22.
[0043] Specifically, the support plate 23 is propped up through the cooperation of the lifting cylinder 21 and the lifting screw rod 22, so that the support plate 23 supports the pipe fitting, the lifting cylinder 21 is rotated so that the lifting cylinder 21 cooperates with the lifting screw rod 22, and the lifting screw rod 22 extends from the lifting cylinder 21 to lift the support plate 23, thereby adjusting the height of the support plate 23 according to the size of the pipe fitting.
[0044] Please refer to Figure 5 As a further implementation of the support plate 23 mechanism: a limiting rod 24 is provided at the lower end of the support plate 23, a limiting cylinder 25 is provided on the base 1, and the limiting rod 24 and the limiting cylinder 25 are slidably matched.
[0045] Specifically, through the cooperation between the limiting rod 24 and the limiting cylinder 25 , the limiting cylinder 25 limits the movement of the limiting rod 24 , thereby ensuring the stable movement of the support plate 23 and preventing the support plate 23 from rotating.
[0046] Please refer to Figure 1 As a further implementation of the support plate 23 mechanism: a lower fixing hoop 26 is fixedly connected to the support plate 23, an upper fixing hoop 27 is provided above the lower fixing hoop 26, and both ends of the upper fixing hoop 27 cooperate with the lower fixing hoop 26 through fixing bolts.
[0047] Specifically, the support plate 23 contacts the pipe fitting through the lower fixing hoop 26, and the pipe fitting is buckled through the upper fixing hoop 27. The lower fixing hoop 26 and the upper fixing hoop 27 are connected by fixing bolts. Under the action of the fixing bolts, the lower fixing hoop 26 and the upper fixing hoop 27 clamp the pipe fitting to fix it.
[0048] In summary, when the overall device is in use or running:
[0049] When using the equipment to test the air tightness of pipe fittings, first debug the equipment, select a contact block 12 of appropriate size according to the specifications of the pipe fittings, fix the contact block 12 to the contact frame 11 through the first connector 13, connect the contact block 12 to the corresponding pipe fitting, and the vent 14 between the contact frame 11 and the contact block 12 will be in a connected state to ensure the transmission of gas, select a sealing block 16 of appropriate size according to the specifications of the pipe fittings, install the sealing block 16 on the pressure frame 15 through the second connector 17, install the pipe fitting to be tested on the equipment, the base 1 supports each device, and the pipe fittings are installed. The lifting cylinder 21 is rotated to make the lifting cylinder 21 cooperate with the lifting screw 22, and the limiting cylinder 25 limits the movement of the limiting rod 24 through the cooperation between the limiting rod 24 and the limiting cylinder 25, so as to ensure the stable movement of the support plate 23 and prevent the support plate 23 from rotating, so that the lifting screw 22 extends from the lifting cylinder 21, so that the support plate 23 is raised, so as to adjust the height of the support plate 23 according to the size of the pipe, and make one end of the pipe contact with the air inlet pipe supported by the support frame 2. The air intake cover 3 is connected together, and the support plate 23 contacts the pipe fitting through the lower fixing hoop 26, and the pipe fitting is buckled by the upper fixing hoop 27. The lower fixing hoop 26 and the upper fixing hoop 27 are connected by fixing bolts. Under the action of the fixing bolts, the lower fixing hoop 26 and the upper fixing hoop 27 clamp the pipe fitting to ensure the stability of the pipe fitting, and then adjust the position of the corresponding sliding frame 4. The sliding frame 4 moves through the cooperation of the limiting slider 19 and the limiting slide groove 20. The limiting slide groove 20 guides the limiting slider 19 and ensures the stable movement of the limiting slider 19 and the movable frame. Moreover, the limiting slide groove 20 can accommodate multiple groups of limiting The slider 19 is convenient for driving the sealing plug 6 to cooperate with the pipe fitting through multiple sets of sliding frames 4 to adapt to the pipe fittings with more ports. The sliding frame 4 drives the control screw 5 and the sealing plug 6 to move, so that the sealing plug 6 is aligned with the other ports of the pipe fitting, and then the control screw 5 is adjusted to make the control screw 5 cooperate with the sliding frame 4 and move along the sliding frame 4 to push the sealing plug 6 to fit tightly with the port of the pipe fitting. When the control screw 5 pushes the sealing plug 6 to move, the pressure frame 15 can rotate with the control screw 5 without being affected by the rotation of the control screw 5, and pushes the sealing block 16 to stably connect with the pipe fitting to block the port of the pipe fitting.
[0050] Before using the equipment to connect the pipeline, first pull one piston rod 8 to the outermost end, and push the other piston rod 8 into the innermost end of the airtight tube 7. After completing the connection of the pipe fittings, the air inlet cover 3 and the sealing plug 6 are tightly attached to the pipe fittings to block the connection between the pipe fitting port and the outside world. The inside of the pipe fitting is connected to the inside of the airtight tube 7 through the vent pipe 10, and the space formed by the airtight tube 7 and the pipe fitting is a closed space. Sealing rings 18 are provided at both ends of the contact block 12 to ensure the sealing ability and improve the sealing effect of the pipe fitting and the airtight tube 7. Push the extended piston rod 8 to apply pressure to the air inside through the piston rod 8. If the sealing effect of the pipe fitting is good, the air inside will push the other piston rod 8 up due to the pressure. Push the two piston rods 8 repeatedly, and observe the scale line 9 on the corresponding piston rod 8. If the data gradually decreases, or the piston rod 8 at the other end cannot rise, it means that there is air loss inside the space and there is a problem with the airtightness of the pipe fitting.
[0051] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A grooved pipe air tightness detection device, comprising a base (1), characterized in that: A support frame (2) is provided at one end of the base (1), an air inlet cover (3) is provided on the support frame (2), a sliding frame (4) is provided on the base (1), a plurality of sliding frames (4) are provided and are slidably arranged around the base (1), a control screw (5) is provided on the sliding frame (4), the control screw (5) is threadedly matched with the sliding frame (4), and a sealing plug (6) is provided at one end of the control screw (5); An airtight tube (7) is provided at one end of the support frame (2), piston rods (8) are provided at both ends of the airtight tube (7), the piston rod (8) cooperates with the airtight tube (7), a scale line (9) is provided on the piston rod (8), a vent pipe (10) is provided in the middle of the airtight tube (7), one end of the vent pipe (10) is connected to the inside of the airtight tube (7), and the other end is connected to the inside of the air intake cover (3).
2. The gas tightness detection device for a grooved pipe according to claim 1, characterized in that: The air inlet cover (3) comprises a contact frame (11) and a contact block (12); a first connector (13) is provided at one end of the contact block (12); the contact block (12) is detachably connected to the contact frame (11) via the first connector (13); and ventilation holes (14) are provided on the contact frame (11), the contact block (12) and the first connector (13).
3. The gas tightness detection device for a grooved pipe according to claim 2, characterized in that: The sealing plug (6) comprises a pressure frame (15) and a sealing block (16); one end of the sealing block (16) is provided with a second connector (17); one end of the pressure frame (15) is rotatably connected to the control screw (5) and the other end is detachably connected to the second connector (17).
4. The gas tightness detection device for a grooved pipe according to claim 2, characterized in that: Sealing rings (18) are provided at both ends of the contact block (12).
5. The gas tightness detection device for a grooved pipe according to claim 1, characterized in that: A limiting sliding block (19) is provided at the lower end of the sliding frame (4), and a limiting sliding groove (20) is provided on the base (1).
6. The gas tightness detection device for a grooved pipe according to claim 1, characterized in that: A lifting cylinder (21) is rotatably connected to the base (1), a lifting screw rod (22) is arranged inside the lifting cylinder (21), the lifting screw rod (22) is matched with the internal thread of the lifting cylinder (21), and a support plate (23) is arranged at the upper end of the lifting screw rod (22).
7. The gas tightness detection device for a grooved pipe according to claim 6, characterized in that: A limiting rod (24) is provided at the lower end of the support plate (23), a limiting cylinder (25) is provided on the base (1), and the limiting rod (24) and the limiting cylinder (25) are slidably matched.
8. The gas tightness detection device for a grooved pipe according to claim 6, characterized in that: A lower fixing hoop (26) is fixedly connected to the support plate (23), an upper fixing hoop (27) is provided above the lower fixing hoop (26), and two ends of the upper fixing hoop (27) are matched with the lower fixing hoop (26) through fixing bolts.