Variable displacement valve airtightness detection device

Abstract

The utility model relates to the technical field of air tightness detection, and discloses a variable displacement valve air tightness detection device, which comprises a detection table, the top end of the detection table is movably connected with a detection box, the right end of the detection box is fixedly connected with a linear motor, and the outer side of an output shaft of the linear motor is fixedly connected with a bidirectional threaded rod. The outer side of the bidirectional threaded rod is in transmission connection with two movable threaded blocks through threads, the bottom ends of the movable threaded blocks are fixedly connected with connecting rods, the bottom ends of the connecting rods are fixedly connected with clamping plates, the bottom ends of the clamping plates are fixedly connected with limiting assemblies, and the top end of the detection table is movably connected with a connecting water tank. And the right end of the connecting water tank is fixedly connected with a water guide assembly. The variable displacement valve airtightness detection device has the advantages that variable displacement valves of different models can be blocked, and the whole detection process is simple and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for a variable displacement valve. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. A valve is a device that allows the medium in piping and equipment to flow or stop and control its flow. A variable displacement valve is a type of valve, and after the variable displacement valve is produced, its air tightness needs to be tested for subsequent applications.

[0003] In the process of air tightness detection of existing variable displacement valves, it is usually necessary to use matching plugging tools to plug both ends of the valve before the air tightness detection operation can be performed. Furthermore, when changing to a different type of variable displacement valve, it is necessary to use a different type of plugging tool, which is cumbersome and troublesome to operate. Therefore, a variable displacement valve air tightness detection device is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a variable displacement valve air tightness detection device, which has the advantages of being able to block variable displacement valves of different models, and the overall detection process is simple and quick. It solves the problem that in the process of air tightness detection of existing variable displacement valves, it is usually necessary to use matching blocking tools to block both ends of the valve before the air tightness detection operation can be performed, and then when changing to different models of variable displacement valves, different models of blocking tools need to be used, which is cumbersome and troublesome to operate.

[0006] (II) Technical solution

[0007] The utility model solves the above-mentioned technical problem through a technical solution as follows: a variable displacement valve air tightness detection device comprises a detection table, the top end of the detection table is movably connected with a detection box, the right end of the detection box is fixedly connected with a linear motor, the outer side of the output shaft of the linear motor is fixedly connected with a bidirectional threaded rod, the outer side of the bidirectional threaded rod is connected with two movable threaded blocks through threaded transmission, the bottom end of the movable threaded block is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a clamping plate, the bottom end of the clamping plate is fixedly connected with a limiting assembly, the top end of the detection table is movably connected with a connecting water tank, and the right end of the connecting water tank is fixedly connected with a water guide assembly.

[0008] The beneficial effects of the utility model are:

[0009] The variable displacement valve air tightness detection device has the advantages of being able to block variable displacement valves of different models, and the overall detection process is simple and quick.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the inner bottom wall of the detection box is fixedly connected to a support block, the top of the support block is movably connected to a variable displacement valve body, there are two clamping plates, the outer sides of the clamping plates and the outer side of the variable displacement valve body are squeezed against each other, and an observation screen is provided on the inner side of the detection box.

[0012] The beneficial effect of adopting the above further solution is that the support block can limit the position of the variable displacement valve body.

[0013] Furthermore, a protective shell is fixedly connected to the inner side of the detection box, the bidirectional threaded rod is located on the inner side of the protective shell, the left end of the connecting water tank is fixedly connected to a water inlet pipe, and the inner side of the connecting water tank is provided with a detection liquid.

[0014] The beneficial effect of adopting the above further solution is that the protective shell can protect the outer side of the bidirectional threaded rod.

[0015] Furthermore, the limit assembly includes a limit rod fixedly connected to the bottom end of the clamping plate, the bottom end of the limit rod is fixedly connected to a limit sleeve, the inner side of the detection box is fixedly connected to a limit long rod, and the inner side of the limit sleeve is slidably connected to the outer side of the limit long rod.

[0016] The beneficial effect of adopting the above further solution is that the limiting assembly can limit the position of the movement of the clamping plate.

[0017] Furthermore, the water guide assembly includes a water guide pump fixedly connected to the right end of the water tank, the left end of the water guide pump is fixedly connected to the first water guide pipe, and the right end of the water guide pump is fixedly connected to the second water guide pipe.

[0018] The beneficial effect of adopting the above further solution is that the water guiding component can guide the detection liquid into the inner side of the inspection box.

[0019] Furthermore, the outer sides of the first water conduit and the second water conduit are fixedly connected with threaded sleeves, the outer sides of the threaded sleeves are threadedly connected with a filter shell, and a connecting hole is formed at the bottom end of the filter shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0022] Figure 3 This is a connection diagram of the connecting rod and the clamping plate of the utility model;

[0023] Figure 4 This is a connection diagram of the threaded sleeve and the filter housing of the utility model.

[0024] In the figure: 1. detection table; 2. detection box; 3. linear motor; 4. bidirectional threaded rod; 5. movable threaded block; 6. connecting rod; 7. clamping plate; 8. limit assembly; 81. limit rod; 82. limit sleeve; 83. limit long rod; 9. connecting water tank; 10. water guide assembly; 101. water guide pump; 102. first water guide pipe; 103. second water guide pipe; 11. support block; 12. variable displacement valve body; 13. threaded sleeve; 14. filter shell. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the embodiment, Figure 1-4 A variable displacement valve air tightness detection device is provided. The utility model includes a detection box 2, the right end of which is fixedly connected to a linear motor 3, the outer side of the output shaft of the linear motor 3 is fixedly connected to a bidirectional threaded rod 4, the outer side of the bidirectional threaded rod 4 is connected to two movable threaded blocks 5 through threaded transmission, the bottom end of the movable threaded block 5 is fixedly connected to a connecting rod 6, the bottom end of the connecting rod 6 is fixedly connected to a clamping plate 7, the bottom end of the clamping plate 7 is fixedly connected to a limiting assembly 8, the top end of the detection table 1 is movably connected to a connecting water tank 9, and the right end of the connecting water tank 9 is fixedly connected to a water guide assembly 10.

[0027] Among them, the inner bottom wall of the detection box 2 is fixedly connected with a support block 11, the top of the support block 11 is movably connected with a variable displacement valve body 12, there are two clamping plates 7, the outer side of the clamping plate 7 and the outer side of the variable displacement valve body 12 are squeezed against each other, and an observation screen is arranged on the inner side of the detection box 2.

[0028] The support block 11 can limit the position of the variable displacement valve body 12 , thereby facilitating detection of the variable displacement valve body 12 .

[0029] Among them, the inner side of the detection box 2 is fixedly connected with a protective shell, the bidirectional threaded rod 4 is located on the inner side of the protective shell, the left end of the connecting water tank 9 is fixedly connected with a water inlet pipe, and the inner side of the connecting water tank 9 is provided with detection liquid.

[0030] The protective shell can protect the outer side of the bidirectional threaded rod 4 and effectively prevent the bidirectional threaded rod 4 from being damaged by collision.

[0031] Among them, the limit assembly 8 includes a limit rod 81 fixedly connected to the bottom end of the clamping plate 7, the bottom end of the limit rod 81 is fixedly connected to the limit sleeve 82, the inner side of the detection box 2 is fixedly connected to the limit long rod 83, and the inner side of the limit sleeve 82 is slidably connected to the outer side of the limit long rod 83.

[0032] The limiting assembly 8 can limit the movement of the clamping plate 7, thereby effectively preventing the position of the clamping plate 7 from being offset.

[0033] The water guide assembly 10 includes a water guide pump 101 fixedly connected to the right end of the water tank 9 , a first water guide pipe 102 fixedly connected to the left end of the water guide pump 101 , and a second water guide pipe 103 fixedly connected to the right end of the water guide pump 101 .

[0034] The water guide component 10 can guide the detection liquid into the inner side of the detection box 2 .

[0035] The outer sides of the first water conduit 102 and the second water conduit 103 are fixedly connected with a threaded sleeve 13 , the outer side of the threaded sleeve 13 is threadedly connected with a filter shell 14 , and a connecting hole is opened at the bottom end of the filter shell 14 .

[0036] Working principle:

[0037] When the variable displacement valve body 12 needs to be tested for air tightness, the variable displacement valve body 12 is placed on the top of the support block 11, and then the linear motor 3 is started to rotate the bidirectional threaded rod 4, and then the moving threaded block 5 can drive the clamping plate 7 at the bottom end of the connecting rod 6 to move left and right;

[0038] Then, the outside of the variable displacement valve body 12 can be blocked by the clamping plate 7, and then the water pump 101 can be started to introduce the test liquid into the test box 2 until the test liquid completely immerses the variable displacement valve body 12. By observing the bubbles, it can be seen whether the air tightness of the variable displacement valve body 12 is good.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable displacement valve air tightness detection device, comprising a detection table (1), characterized in that: The top of the detection table (1) is movably connected to a detection box (2), the right end of the detection box (2) is fixedly connected to a linear motor (3), the outer side of the output shaft of the linear motor (3) is fixedly connected to a bidirectional threaded rod (4), the outer side of the bidirectional threaded rod (4) is connected to two movable threaded blocks (5) through threaded transmission, the bottom end of the movable threaded block (5) is fixedly connected to a connecting rod (6), the bottom end of the connecting rod (6) is fixedly connected to a clamping plate (7), the bottom end of the clamping plate (7) is fixedly connected to a limiting component (8), the top of the detection table (1) is movably connected to a connecting water tank (9), and the right end of the connecting water tank (9) is fixedly connected to a water guide component (10).

2. The variable displacement valve air tightness detection device according to claim 1, characterized in that: The inner bottom wall of the detection box (2) is fixedly connected to a support block (11), the top end of the support block (11) is movably connected to a variable displacement valve body (12), the number of the clamping plates (7) is two, the outer sides of the clamping plates (7) and the outer sides of the variable displacement valve body (12) are pressed against each other, and an observation screen is arranged on the inner side of the detection box (2).

3. The variable displacement valve air tightness detection device according to claim 1, characterized in that: The inner side of the detection box (2) is fixedly connected to a protective shell, the bidirectional threaded rod (4) is located on the inner side of the protective shell, the left end of the connecting water tank (9) is fixedly connected to a water inlet pipe, and the inner side of the connecting water tank (9) is provided with detection liquid.

4. The variable displacement valve air tightness detection device according to claim 1, characterized in that: The limit assembly (8) comprises a limit rod (81) fixedly connected to the bottom end of the clamping plate (7); the bottom end of the limit rod (81) is fixedly connected to a limit sleeve (82); the inner side of the detection box (2) is fixedly connected to a limit long rod (83); the inner side of the limit sleeve (82) is slidably connected to the outer side of the limit long rod (83).

5. The variable displacement valve air tightness detection device according to claim 1, characterized in that: The water guide assembly (10) comprises a water guide pump (101) fixedly connected to the right end of the water tank (9), the left end of the water guide pump (101) is fixedly connected to a first water guide pipe (102), and the right end of the water guide pump (101) is fixedly connected to a second water guide pipe (103).

6. The variable displacement valve air tightness detection device according to claim 5, characterized in that: The outer sides of the first water conduit (102) and the second water conduit (103) are fixedly connected with threaded sleeves (13), the outer sides of the threaded sleeves (13) are threadedly connected with a filter shell (14), and a connection hole is provided at the bottom end of the filter shell (14).

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