Air tightness detection device for pneumatic element
By introducing the cooperation of the first and second bevel gears with the rotating rod in the pneumatic component airtightness testing device, combined with the design of worm gear, worm wheel and bidirectional threaded rod, the problem of insufficient adjustment angle of the gripper is solved, realizing flexible positioning and protection of pneumatic components, avoiding damage, and improving the reliability of testing.
Patent Information
- Application Number
- CN202520045503.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing pneumatic component airtightness testing devices, the lack of an adjustable gripper angle means that some pneumatic components cannot be fully submerged in water, and the angle of insertion cannot be adjusted according to requirements, which may cause damage to the components.
The clamping mechanism is adjusted by using the first and second bevel gears in conjunction with the rotating rod, which protects areas that should not be submerged in water. The design of the worm gear, worm wheel, and bidirectional threaded rod allows for flexible adjustment of the clamping block, preventing some pneumatic components from directly contacting water.
It enables the adjustment of the angle at which pneumatic components are placed in water according to requirements, protecting areas that should not be submerged in water, avoiding component damage, and improving the flexibility and reliability of testing.
Smart Images

Figure CN223883125U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to detection device field, especially pneumatic component air tightness detection device. BACKGROUND
[0002] Pneumatic component air tightness detection device is a kind of equipment for detecting the air tightness of pneumatic component such as air cylinder, pneumatic joint etc., this device is widely used in automobile, petroleum, coal mine, rubber tube, pressure gauge, gas storage tank etc. Industry, ensure the safety and reliability of product in use process.
[0003] According to the pneumatic component air tightness detection device (authorization announcement number: CN221781762U) described in patent network "the utility model relates to pneumatic component detection technical field, discloses a pneumatic component air tightness detection device, including workbench, the inside of workbench is opened with water tank, the top of workbench is fixedly connected with vertical board, the side of vertical board is fixedly connected with drive cylinder, the output end of drive cylinder is fixedly connected with work plate, the side of work plate is provided with water inlet, the side of work plate and the one end of water inlet is provided with clamping groove, the inside of work plate is provided with the drive assembly of drive water inlet movement, the inside of clamping groove is structured with the clamping assembly of pneumatic component fixation. By being provided with clamping assembly, it is convenient to clamp and fix different specifications of pneumatic component, and the mutual cooperation of worm and worm gear makes the clamping assembly have certain self-locking, to improve its clamping stability."
[0004] For the above description, the applicant considers that there are the following problems:
[0005] The utility model in use process, drive cylinder drives work plate to go down and drives pneumatic component to immerse in water tank water, since adopting jaw to clamp pneumatic component, the clamping mode can make the angle of element invasion into water fixed and not adjustable, but when detecting pneumatic component, part of pneumatic component exists opening or connecting port etc., these openings and connecting port etc. are not suitable to be put into water, if immerse in water, it can cause the damage of pneumatic component, therefore need to improve pneumatic component air tightness detection device to solve the above problems. Utility model content
[0006] In order to overcome the problem of lack of angle adjustment mode of jaw, part of pneumatic component is not suitable to be put into water, and the angle of putting in can not be adjusted according to demand.
[0007] The utility model discloses a technical scheme for: pneumatic element air tightness detection device, including device main part still include fixed shell and clamping mechanism, the bottom fixed connection of device main part has support leg, the inside of device main part is provided with clamping mechanism, the inside of device main part is provided with fixed shell, the inside rotation is connected with first bevel gear of fixed shell, the outside of first bevel gear is engaged with second bevel gear, the inside fixed connection of second bevel gear has rotating link, rotating link rotation is connected in the inside of fixed shell, the outside fixed connection of rotating link has first connecting shell, and the angle of first connecting shell is adjusted through rotating link rotation.
[0008] As preferred, the first bevel gear is opened with an adaptive rotating groove at the relative position of the fixed shell, and the first bevel gear is rotationally connected in the inside of the fixed shell through the rotating groove.
[0009] As preferred, the top of the device main body is fixedly connected with a first connecting frame, the top of the first connecting frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first threaded rod, the first threaded rod is rotationally connected in the inside of the device main body, the inside of the first connecting frame is fixedly connected with a first telescopic rod, the outside of the first threaded rod is threadedly connected with a second telescopic rod, the second telescopic rod is slidingly connected in the inside of the first telescopic rod, the inside of the fixed shell is rotationally connected with a worm, the front of the worm is fixedly connected with a first knob, the outside of the worm is engaged with a worm wheel, the worm wheel is fixedly connected with the outside of the first bevel gear, the bottom of the first connecting shell is fixedly connected with a second connecting frame, the inside of the second connecting frame is rotationally connected with a bidirectional threaded rod, the right side of the bidirectional threaded rod is fixedly connected with a second knob, the outside of the bidirectional threaded rod is threadedly connected with a first sliding block, and the first sliding block is slidingly connected in the inside of the second connecting frame.
[0010] As preferred, the second connecting frame is opened with a sliding groove at the relative position of the first sliding block, and the first sliding block is slidingly connected in the inside of the sliding groove.
[0011] As preferred, the clamping mechanism includes a second connecting shell, the second connecting shell is fixedly connected at the bottom of the first sliding block, the inside of the second connecting shell is rotationally connected in the inside of a second threaded rod, the outside of the second threaded rod is fixedly connected with a third knob, the outside of the second threaded rod is threadedly connected with a third connecting frame, the third connecting frame is slidingly connected in the inside of the second connecting shell, the inside of the third connecting frame is fixedly connected with a first fixed rod, the inside of the second connecting shell is fixedly connected with a guide rail, the outside of the guide rail is slidingly connected with a second sliding block, the inside of the second sliding block is fixedly connected with a second fixed rod, a connecting rod is rotationally connected between the first fixed rod and the second fixed rod, and the inside of the second sliding block is fixedly connected with a clamping block.
[0012] As preferred, the second connecting shell is opened with a sliding groove at the relative position of the third connecting frame, and the third connecting frame is slidingly connected in the inside of the sliding groove.
[0013] The second connecting shell is provided with a rotating groove at the opposite position of the second threaded rod.
[0014] The utility model discloses the beneficial effect has: relative to lack the adjustment mode, through the first bevel gear, second bevel gear and rotating rod, according to the first bevel gear and second bevel gear cooperation drive rotating rod and first connecting shell rotation, the part area of protection pneumatic element not suitable for entering water, thereby avoid the problem of the lack of adjustment angle mode of the clamping jaw, part pneumatic element not suitable for all put into water, can not adjust the angle of putting according to demand. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the three -dimensional structure schematic diagram of device for the utility model;
[0016] Figure 2 It is the first telescopic rod sectional structure schematic diagram for the utility model;
[0017] Figure 3 It is the first motor and the connected component structure schematic diagram for the utility model;
[0018] Figure 4 It is the fixed shell sectional structure schematic diagram for the utility model;
[0019] Figure 5 It is the second connecting frame and the connected component structure schematic diagram for the utility model;
[0020] Figure 6 It is the clamping mechanism structure schematic diagram for the utility model;
[0021] Figure 7 It is the second connecting shell and the connected component exploded structure schematic diagram for the utility model;
[0022] Figure 8 It is the second connecting shell and the connected component local sectional structure schematic diagram for the utility model.
[0023] Explanation of the attached drawings: 1, device main body; 4, support leg; 21, fixed shell; 22, first bevel gear; 23, second bevel gear; 24, rotating rod; 25, first connecting shell; 26, first connecting frame; 27, first motor; 28, first threaded rod; 210, first telescopic rod; 211, second telescopic rod; 212, worm; 213, first knob; 214, worm wheel; 215, second connecting frame; 216, bidirectional threaded rod; 217, second knob; 218, first sliding block; 31, second connecting shell; 32, second threaded rod; 33, third knob; 34, third connecting frame; 35, first fixed rod; 36, guide rail; 37, second sliding block; 38, second fixed rod; 39, connecting rod; 310, clamping block. DETAILED DESCRIPTION
[0024] The utility model is further explained in connection with the drawings and examples.
[0025] Please refer to Figure 1 - Figure 8 The utility model provides an embodiment: pneumatic element air tightness detection device, including device main body 1 still include fixed shell 21 and clamping mechanism, device main body 1's bottom fixedly connected with support leg 4, device main body 1's inside is provided with clamping mechanism, device main body 1's inside is provided with fixed shell 21, the inside rotation is connected with first bevel gear 22 of fixed shell 21, the outside engagement has second bevel gear 23 of first bevel gear 22, the inside fixedly connected with rotating rod 24 of second bevel gear 23, rotating rod 24 rotation is connected in the inside of fixed shell 21, the outside fixedly connected with first connecting shell 25 of rotating rod 24, through rotating rod 24 rotation adjusts the angle of first connecting shell 25, in working through, pour the water into the inside of device main body 1, again through first bevel gear 22 and second bevel gear 23 cooperation, drive rotating rod 24 and first connecting shell 25 rotation, to adjust the angle of the water in according to pneumatic element, according to clamping mechanism fully clamps pneumatic element, reduces it in the water in device main body 1's inside, detects the sealing property, the relative position of first bevel gear 22 in fixed shell 21 is opened with the adaptive rotation groove, first bevel gear 22 is rotationally connected in the inside of fixed shell 21 through rotation groove, the rotation of first bevel gear 22 is limited through rotation groove, prevents its first bevel gear 22 and fixed shell 21 and separates.
[0026] Please refer to Figure 1 - Figure 5In the embodiment, the top of the device body 1 is fixedly connected with a first connecting frame 26, the top of the first connecting frame 26 is fixedly connected with a first motor 27, the output end of the first motor 27 is fixedly connected with a first threaded rod 28, the first threaded rod 28 is rotatably connected in the interior of the device body 1, the inner side of the first connecting frame 26 is fixedly connected with a first telescopic rod 210, the outer part of the first threaded rod 28 is threadedly connected with a second telescopic rod 211, the second telescopic rod 211 is slidingly connected in the interior of the first telescopic rod 210, the interior of the fixed shell 21 is rotatably connected with a worm 212, the front side of the worm 212 is fixedly connected with a first rotating knob 213, the outer part of the worm 212 is engaged with a worm wheel 214, the worm wheel 214 is fixedly connected with the outer part of the first bevel gear 22, the bottom of the first connecting shell 25 is fixedly connected with a second connecting frame 215, the interior of the second connecting frame 215 is rotatably connected with a bidirectional threaded rod 216, the right side of the bidirectional threaded rod 216 is fixedly connected with a second rotating knob 217, the outer part of the bidirectional threaded rod 216 is threadedly connected with a first sliding block 218, the first sliding block 218 is slidingly connected in the interior of the second connecting frame 215, the angle of the first connecting shell 25 is adjusted and locked through the cooperation of the worm 212 and the worm wheel 214, so that some open areas are protected from being put into water, the second connecting frame 215 is provided with a sliding groove at the relative position of the first sliding block 218, the first sliding block 218 is slidingly connected in the interior of the sliding groove, the first sliding block 218 is guided and restricted from sliding through the sliding groove, and the first sliding block 218 linearly slides in the interior of the second connecting frame 215.
[0027] Please refer to Figure 1 、 Figure 6 - Figure 8In the embodiment, the clamping mechanism comprises a second connecting shell 31 fixedly connected to the bottom of the first sliding block 218, the inside of the second connecting shell 31 is rotatably connected to the inside of a second threaded rod 32, the outside of the second threaded rod 32 is fixedly connected with a third rotating knob 33, the outside of the second threaded rod 32 is threadedly connected with a third connecting frame 34, the third connecting frame 34 is slidably connected to the inside of the second connecting shell 31, the inside of the third connecting frame 34 is fixedly connected with a first fixed rod 35, the inside of the second connecting shell 31 is fixedly connected with a guide rail 36, the outside of the guide rail 36 is slidably connected with a second sliding block 37, the inside of the second sliding block 37 is fixedly connected with a second fixed rod 38, the first fixed rod 35 and the second fixed rod 38 are rotatably connected with a connecting rod 39, the inside of the second sliding block 37 is fixedly connected with a clamping block 310, four clamping blocks 310 are arranged to clamp the pneumatic element, compared with the three-jaw clamping element, the flexibility of clamping is increased, and the problem that the three-jaw clamping cannot sufficiently limit the special-shaped element when clamping a part of the special-shaped element is avoided, the second connecting shell 31 is provided with a sliding groove at the relative position of the third connecting frame 34, the third connecting frame 34 is slidably connected to the inside of the sliding groove, the sliding of the third connecting frame 34 is limited through the sliding groove, the third connecting frame 34 is prevented from rotating with the second threaded rod 32, the third connecting frame 34 is guided to linearly slide in the second connecting shell 31, the second connecting shell 31 is provided with a rotating groove at the relative position of the second threaded rod 32, the second threaded rod 32 is rotatably connected to the inside of the rotating groove, the movement of the second threaded rod 32 is limited through the rotating groove, and the second threaded rod 32 is prevented from moving with the third connecting frame 34.
[0028] In the process of working, the pneumatic components are detected as needed, the first knob 213 is turned, the first bevel gear 22 is driven to rotate through the cooperation of the worm 212 and the worm gear 214, the first bevel gear 22 drives the rotating rod 24 to drive the first connecting shell 25 to rotate through the cooperation with the second bevel gear 23, thereby adjusting the angle of the second connecting frame 215, and then the pneumatic components are placed inside the first sliding block 218, the first sliding block 218 is slid inward by rotating the second knob 217 to drive the bidirectional threaded rod 216 to rotate, the clamping block 310 contacts the two sides of the pneumatic components, the third knob 33 is turned to drive the second threaded rod 32 to rotate, the third connecting frame 34 is slid inside the second connecting shell 31 through the rotation of the second threaded rod 32, the second sliding block 37 is slid outside the guide rail 36 through the cooperation of the first fixed rod 35, the second fixed rod 38 and the connecting rod 39, the clamping block 310 clamps the pneumatic components, thereby fully restricting the movement of the pneumatic components, and then the first motor 27 works to drive the first threaded rod 28 to rotate, the second telescopic rod 211 is slid inside the first telescopic rod 210 through the rotation of the first threaded rod 28, the fixed shell 21 is driven downward, the pneumatic components are placed into the water inside the device main body 1 to detect whether the sealing performance of the pneumatic components is qualified.
[0029] Through the above steps, the first bevel gear 22, the second bevel gear 23 and the rotating rod 24 are added to solve the problem that the angle of the clamping jaw cannot be adjusted, some pneumatic components are not suitable to be placed in water, and the angle of the placed components cannot be adjusted according to the needs.
Claims
1. A device for testing the air tightness of pneumatic elements, comprising a device body (1), characterized in that: Also include a fixed shell (21) and clamping mechanism, the bottom of the device body (1) is fixedly connected with support leg (4), the inner side of the device body (1) is provided with clamping mechanism, the inner side of the device body (1) is provided with fixed shell (21), the inside of fixed shell (21) is rotatably connected with first bevel gear (22), the outside of first bevel gear (22) is engaged with second bevel gear (23), the inside of second bevel gear (23) is fixedly connected with rotating rod (24), rotating rod (24) is rotatably connected in the inside of fixed shell (21), the outside of rotating rod (24) is fixedly connected with first connecting shell (25), the angle of first connecting shell (25) is adjusted by rotating rod (24) rotation.
2. The device of claim 1, wherein: First bevel gear (22) is provided with an adaptive rotating groove in the relative position of fixed shell (21), and first bevel gear (22) is rotatably connected in the inside of fixed shell (21) through the rotating groove.
3. The device of claim 1, wherein: The top of the device body (1) is fixedly connected with first connecting frame (26), the top of first connecting frame (26) is fixedly connected with first motor (27), the output end of first motor (27) is fixedly connected with first threaded rod (28), first threaded rod (28) is rotatably connected in the inside of device body (1), the inner side of first connecting frame (26) is fixedly connected with first telescopic rod (210), the outside of first threaded rod (28) is threadedly connected with second telescopic rod (211), second telescopic rod (211) is slidably connected in the inside of first telescopic rod (210), the inside of fixed shell (21) is rotatably connected with worm (212), the front of worm (212) is fixedly connected with first knob (213), the outside of worm (212) is engaged with worm wheel (214), worm wheel (214) is fixedly connected with the outside of first bevel gear (22), the bottom of first connecting shell (25) is fixedly connected with second connecting frame (215), the inside of second connecting frame (215) is rotatably connected with bidirectional threaded rod (216), the right side of bidirectional threaded rod (216) is fixedly connected with second knob (217), the outside of bidirectional threaded rod (216) is threadedly connected with first sliding block (218), first sliding block (218) is slidably connected in the inside of second connecting frame (215).
4. The device of claim 3, wherein: Second connecting frame (215) is provided with a sliding slot in the relative position of first sliding block (218), and first sliding block (218) is slidably connected in the inside of the sliding slot.
5. The device of claim 1, wherein: The clamping mechanism comprises a second connecting shell (31), which is fixedly connected to the bottom of the first sliding block (218), rotatably connected to the inside of a second threaded rod (32), and externally fixedly connected with a third rotating knob (33). The second threaded rod (32) is threadedly connected with a third connecting frame (34) on the outside, which is slidably connected to the inside of the second connecting shell (31). The third connecting frame (34) is fixedly connected with a first fixed rod (35) on the inside. The second connecting shell (31) is fixedly connected with a guide rail (36) on the inside, which is slidably connected with a second sliding block (37) on the outside. The second sliding block (37) is fixedly connected with a second fixed rod (38) on the inside. The first fixed rod (35) and the second fixed rod (38) are rotatably connected with a connecting rod (39). The second sliding block (37) is fixedly connected with a clamping block (310) on the inside.
6. The device of claim 5, wherein: The second connecting shell (31) is provided with a sliding groove at the opposite position of the third connecting frame (34), and the third connecting frame (34) is slidably connected to the inside of the sliding groove.
7. The device of claim 5, wherein: The second connecting shell (31) is provided with a rotating groove at the opposite position of the second threaded rod (32), and the second threaded rod (32) is rotatably connected to the inside of the rotating groove.
Citation Information
Patent Citations
Air tightness detection device for pneumatic element
CN221781762U