A valve body air tightness detection device

Abstract

The utility model discloses a valve body air tightness detection device, including base, stop board, adjusting assembly, the top fixed mounting of base has the detection seat, the top fixed mounting of detection seat has the mounting seat, and the middle part bushing of mounting seat has the positioning sleeve, and the top of stop board is provided with two in the positioning sleeve, and the side of two stop boards away from each other all fixed mounting has telescopic handle, and the outer surface sliding bushing of telescopic handle has the sleeve, and adjusting assembly sets up at the back of detection seat, and bottom and the top fixed mounting of base, through setting adjusting assembly, mounting seat, positioning sleeve etc. When carrying out air tightness detection to valve body, first through motor drive gear rotation, make the two racks of meshing relative movement, adjust the two stop boards of interconnection and adhere to the outer surface of valve body and hold limit, make sealing pressure plate press down again, thereby improve the stability of fixed when valve body detection, avoid valve body from positioning sleeve etc. Structure skew or drop, improve the sealing effect to valve body.

Description

Technical Field

[0001] This utility model relates to the field of valve body testing technology, and more specifically, to a valve body airtightness testing device. Background Technology

[0002] Valve body airtightness testing is a procedure to ensure that the valve is leak-free. By filling the valve cavity with gas or liquid at a specified pressure, the leakage of the medium inside or at the connection is accurately detected under pressure holding conditions, thereby determining whether its sealing performance is qualified.

[0003] A search revealed CN222652459U, which discloses a valve body airtightness testing mechanism. The mechanism includes a base, a testing instrument body on one side of the top of the base, and a frame on the other side of the top of the base. A lifting electric cylinder is inserted at the middle of the top of the frame, and a sealing pressure plate is located at the bottom of the lifting electric cylinder. By providing a disassembly and assembly assembly between the top of the testing base and the bottom of the positioning sleeve, the mounting base is threadedly fixed to the outside of the connecting sleeve during use. This securely mounts the positioning sleeve onto the testing base, allowing the valve body to be positioned for airtightness testing. Furthermore, a second annular sealing gasket seals the contact surface between the top of the mounting base and the bottom of the valve body. This facilitates the secure connection of the positioning sleeve to the testing base and allows for the replacement of positioning sleeves of different sizes to accommodate valve bodies of different diameters, further improving the practicality of the testing mechanism.

[0004] However, the valve body airtightness testing mechanism still has some shortcomings in use. For example, the above technical solution can test valve bodies of different specifications by replacing positioning sleeves of different specifications, but since the auxiliary valve body stabilizing limit plate and other structures located on the side can only provide support after fitting with one side of the valve body, there is still a risk of tipping over when fixing the valve body. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a valve body airtightness detection device to solve the problem that the valve body positioning mechanism in the prior art adopts a replaceable positioning sleeve to adapt to different valve bodies, but its single-point side support method leads to unstable fixation and poses a risk of tipping over.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a valve body airtightness detection device, comprising...

[0007] A base, on the top of which a detection seat is fixedly installed, and on the top of which a mounting seat is fixedly installed, and a positioning sleeve is sleeved on the middle of the mounting seat;

[0008] The limiting plate has two plates above the positioning sleeve. Each of the two limiting plates has a telescopic rod fixedly installed on its opposite sides. The outer surface of the telescopic rod is slidably fitted with a sleeve.

[0009] An adjustment assembly is disposed on the back of the detection seat and fixedly installed at its bottom and at the top of the base. The adjustment assembly includes a mounting column, the bottom of which is fixedly installed at the top of the base. A housing is fixedly installed on the top surface of the mounting column, and a motor is fixedly installed on the top of the housing. A gear is fixedly installed at the output end of the motor. A rack is meshed with the outer edge of the gear. Two racks are provided, and the two racks are diagonally symmetrical about the center of the gear. Their outer surfaces are slidably installed with the inner surface of the housing. A connecting plate is fixedly installed at the end of the rack, and the end of the connecting plate away from the rack is fixedly installed with the outer surface of a limiting plate.

[0010] A sliding block is fixedly installed on the lower surface of the connecting plate near the end of the rack, and a slide rail is slidably installed on the outer surface of the bottom end of the sliding block. The end of the slide rail is fixedly installed to the side of the mounting column.

[0011] The top of the mounting base is fixedly installed with a sealing gasket, and the outer surface of the bottom end of the positioning sleeve is fixedly installed with an upper positioning block and a lower positioning block. The outer surfaces of the bottom end of the positioning sleeve, the upper positioning block, and the lower positioning block are all slidably sleeved with the inner surface of the middle part of the mounting base and the sealing gasket. Two positioning components are installed on the outer surface of the mounting base symmetrically arranged about the center of the detection base.

[0012] The positioning component includes a bracket. The outer surface of one end of the bracket is fixedly installed with the upper surface of the detection seat and the outer surface of the mounting seat, and the other end has two insertion holes. A slider is slidably installed on the outer surface of the bracket. A pin is fixedly installed on the side of the slider near the detection seat. The outer surface of the end of the pin is slidably sleeved with the inner surface of the mounting seat. A knob is installed on the side of the slider. A cam is fixedly installed at the end of the knob. A movable plate is installed on the outer edge of the cam. A insertion post is fixedly installed on the lower surface of the middle part of the movable plate. A connecting rod is slidably sleeved on the inner surface of the movable plate. The bottom end of the connecting rod is fixedly installed with the upper surface of the slider. A top plate is fixedly installed on the upper surface of the connecting rod. A spring is provided on the outside of the top end of the connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In the above solution, structures such as adjustment components, mounting bases, and positioning sleeves are incorporated. During the airtightness test of the valve body, the motor first drives the gears to rotate, causing the two meshing racks to move relative to each other. After adjusting the two connected limiting plates to clamp and limit the valve body's outer surface, the sealing plate is pressed down. This improves the stability of the valve body during testing, preventing it from tilting or falling off the positioning sleeves and other structures, thus enhancing the sealing effect on the valve body.

[0015] The above solution incorporates a positioning component and other structural elements. When installing the positioning sleeve, the upper and lower positioning blocks are aligned with the mounting base slots and inserted. Rotating the knob causes the cam to lift the movable plate, allowing the insertion pin to exit the bracket's insertion hole. The slider can then slide, inserting the pin between the upper and lower positioning blocks for quick positioning and fixation. This structure facilitates assembly and disassembly and effectively limits movement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustment components of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the mounting base, positioning sleeve, etc. of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning components and other structures of this utility model.

[0020] [Figure Labels]

[0021] 1. Base; 2. Detection seat; 3. Mounting seat; 31. Sealing gasket; 4. Positioning sleeve; 41. Upper positioning block; 42. Lower positioning block; 5. Limiting plate; 6. Adjustment assembly; 60. Mounting column; 61. Housing; 62. Motor; 63. Gear; 64. Rack; 65. Connecting plate; 66. Sliding block; 67. Slide rail; 7. Sleeve; 8. Telescopic rod; 9. Positioning assembly; 90. Bracket; 91. Slider; 92. Pin rod; 93. Knob; 94. Cam; 95. Movable plate; 96. Insertion column; 97. Connecting rod; 98. Top plate; 99. Spring. Detailed Implementation

[0022] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0023] As attached Figure 1 To be continued Figure 4 An embodiment of this utility model provides a valve body airtightness testing device, including...

[0024] A base 1, a detection seat 2 is fixedly installed on the top of the base 1, a mounting seat 3 is fixedly installed on the top of the detection seat 2, and a positioning sleeve 4 is sleeved in the middle of the mounting seat 3;

[0025] Limiting plate 5, there are two limiting plates 5 above the positioning sleeve 4, and telescopic rods 8 are fixedly installed on the sides of the two limiting plates 5 that are far apart from each other. The outer surface of the telescopic rods 8 is slidably sleeved with a sleeve 7.

[0026] Adjustment component 6 is located on the back of detection seat 2 and is fixedly installed at the bottom and top of base 1. Adjustment component 6 includes mounting column 60, the bottom of mounting column 60 is fixedly installed at the top of base 1, housing 61 is fixedly installed on the top surface of mounting column 60, motor 62 is fixedly installed on the top of housing 61, gear 63 is fixedly installed at the output end of motor 62, rack 64 meshes with the outer edge of gear 63, there are two racks 64, and the two racks 64 are diagonally symmetrical about the center of gear 63, and their outer surfaces are slidably installed with the inner surface of housing 61, connecting plate 65 is fixedly installed at the end of rack 64, and the end of connecting plate 65 away from rack 64 is fixedly installed with the outer surface of limiting plate 5.

[0027] Among them, a sliding block 66 is fixedly installed on the lower surface of the end of the connecting plate 65 near the rack 64, and a slide rail 67 is slidably installed on the outer surface of the bottom end of the sliding block 66. The end of the slide rail 67 is fixedly installed on the side of the mounting column 60.

[0028] By setting up structures such as sliding block 66 and slide rail 67, during the process of the connecting plate 65 driving the limiting plate 5 to move, the sliding block 66 installed on the lower surface of the end near the rack 64 will slide along the outer surface of the slide rail 67, improving the stability of the movement of the connecting plate 65. At the same time, the limiting plate 5 will drive the telescopic rod 8 installed on its outer surface to slide along the inner surface of the sleeve 7, further improving the stability of the movement of the limiting plate 5 and other structures, and improving the fixing effect on the valve body.

[0029] Among them, a sealing gasket 31 is fixedly installed on the top of the mounting base 3, and an upper positioning block 41 and a lower positioning block 42 are fixedly installed on the outer surface of the bottom end of the positioning sleeve 4. The outer surface of the bottom end of the positioning sleeve 4, the outer surface of the upper positioning block 41 and the lower positioning block 42 are all slidably sleeved with the inner surface of the middle part of the mounting base 3 and the sealing gasket 31. Two positioning components 9 are installed on the outer surface of the mounting base 3, which are symmetrically arranged about the center of the detection base 2.

[0030] The positioning component 9 includes a bracket 90. The outer surface of one end of the bracket 90 is fixedly installed with the upper surface of the detection seat 2 and the outer surface of the mounting seat 3, and the other end has two insertion holes. A slider 91 is slidably installed on the outer surface of the bracket 90. A pin 92 is fixedly installed on the side of the slider 91 near the detection seat 2. The outer surface of the end of the pin 92 is slidably sleeved with the inner surface of the mounting seat 3. A knob 93 is installed on the side of the slider 91. A cam 94 is fixedly installed at the end of the knob 93. A movable plate 95 is installed on the outer edge of the cam 94. A insertion post 96 is fixedly installed on the lower surface of the middle part of the movable plate 95. A connecting rod 97 is slidably sleeved on the inner surface of the movable plate 95. The bottom end of the connecting rod 97 is fixedly installed with the upper surface of the slider 91. A top plate 98 is fixedly installed on the upper surface of the connecting rod 97. A spring 99 is provided on the outside of the top end of the connecting rod 97.

[0031] By setting the positioning component 9, when installing the positioning sleeve 4 and the mounting base 3, the upper positioning block 41 and the lower positioning block 42 mounted on its outer surface can be aligned with the slots opened in the mounting base 3 and inserted for installation. Then, the knob 93 drives the connected cam 94 to rotate, and the cam 94 will gradually lift the movable plate 95 that is attached to its outer edge, so that the movable plate 95 slides upward along the outer surface of the connecting rod 97. While compressing the spring 99, it drives the bottom-mounted insertion post 96 to move out of the insertion hole at the end of the bracket 90. At this time, the slider 91 can slide along the outer surface of the bracket 90, and drive the pin rod 92 on the side of the slider 91 to slide along the inner surface of the mounting base 3. Its end is inserted between the upper positioning block 41 and the lower positioning block 42 to complete the positioning of the positioning sleeve 4, thereby making the installation between the positioning sleeve 4 and the mounting base 3 more convenient. The positioning component 9 achieves the positioning effect of the positioning sleeve 4 and is easy to disassemble.

[0032] The working process of this utility model is as follows:

[0033] When performing an airtightness test on the valve body, before pressing down the sealing pressure plate above, the gear 63 connected to its output end can be driven to rotate by controlling the motor 62, causing the two meshing racks 64 on its outer edge to move relative to each other. This causes the connecting plate 65 and the limiting plate 5 connected to the end of the connecting plate 65 to move closer to each other until the two limiting plates 5 are clamped and limited against the outer surface of the valve body. Then, the sealing pressure plate is adjusted to press down, thereby improving the stability of the valve body during the test, preventing the valve body from tilting or falling off the positioning sleeve 4 and other structures, and improving the sealing effect of the valve body.

[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0036] Finally: 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, improvements, etc., 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 valve body airtightness testing device, characterized in that, include A base (1) is provided with a detection seat (2) fixedly installed on the top of the base (1), and an installation seat (3) is fixedly installed on the top of the detection seat (2). A positioning sleeve (4) is sleeved in the middle of the installation seat (3). Limiting plate (5), two limiting plates (5) are provided above the positioning sleeve (4), and telescopic rods (8) are fixedly installed on the sides of the two limiting plates (5) that are far apart from each other. A sleeve (7) is slidably sleeved on the outer surface of the telescopic rod (8). Adjustment component (6), the adjustment component (6) is set on the back of the detection seat (2) and the bottom is fixedly installed on the top of the base (1). The adjustment component (6) includes a mounting column (60). The bottom of the mounting column (60) is fixedly installed on the top of the base (1). A housing (61) is fixedly installed on the top surface of the mounting column (60). A motor (62) is fixedly installed on the top of the housing (61). A gear (63) is fixedly installed at the output end of the motor (62). A rack (64) meshes with the outer edge of the gear (63). There are two racks (64). The two racks (64) are diagonally symmetrical about the center of the gear (63). The outer surface of the rack (64) is slidably installed with the inner surface of the housing (61). A connecting plate (65) is fixedly installed at the end of the rack (64). The end of the connecting plate (65) away from the rack (64) is fixedly installed with the outer surface of the limiting plate (5).

2. The valve body airtightness testing device according to claim 1, characterized in that, A sliding block (66) is fixedly installed on the lower surface of the connecting plate (65) near the end of the rack (64). A slide rail (67) is slidably installed on the outer surface of the bottom end of the sliding block (66). The end of the slide rail (67) is fixedly installed on the side of the mounting column (60).

3. The valve body airtightness testing device according to claim 1, characterized in that, A sealing gasket (31) is fixedly installed on the top of the mounting base (3). An upper positioning block (41) and a lower positioning block (42) are fixedly installed on the outer surface of the bottom end of the positioning sleeve (4). The outer surface of the bottom end of the positioning sleeve (4), the outer surface of the upper positioning block (41) and the lower positioning block (42) are all slidably sleeved with the inner surface of the middle part of the mounting base (3) and the sealing gasket (31). Two positioning components (9) are installed on the outer surface of the mounting base (3) symmetrically arranged about the center of the detection seat (2).

4. The valve body airtightness testing device according to claim 3, characterized in that, The positioning component (9) includes a bracket (90). The outer surface of one end of the bracket (90) is fixedly installed with the upper surface of the detection seat (2) and the outer surface of the mounting seat (3), and two insertion holes are opened at the other end. A slider (91) is slidably installed on the outer surface of the bracket (90). A pin (92) is fixedly installed on the side of the slider (91) near the detection seat (2). The outer surface of the end of the pin (92) is slidably sleeved with the inner surface of the mounting seat (3). A knob is installed on the side of the slider (91). 93), a cam (94) is fixedly installed at the end of the knob (93), a movable plate (95) is installed on the outer edge of the cam (94), a plug-in post (96) is fixedly installed on the lower surface of the middle part of the movable plate (95), a connecting rod (97) is slidably sleeved on the inner surface of the movable plate (95), the bottom end of the connecting rod (97) is fixedly installed on the upper surface of the slider (91), a top plate (98) is fixedly installed on the upper surface of the connecting rod (97), and a spring (99) is provided on the outside of the top end of the connecting rod (97).

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