Corrugated pipe watertight detection device

Abstract

The utility model discloses a corrugated pipe watertight detection device, which relates to the technical field of corrugated pipe watertight detection, and comprises a water tank and a servo motor, a detection mechanism is arranged above the water tank, an installation structure is arranged above the water tank, the detection mechanism comprises a fixed frame, the fixed frame is fixedly connected to the upper end of the water tank, and the servo motor is arranged on the fixed frame. An air cylinder is fixedly connected to the upper end of the fixing frame, the output end of the air cylinder penetrates through the fixing frame, a connecting base is fixedly connected to the bottom end of the air cylinder, a reciprocating lead screw is rotatably arranged on the inner wall of the connecting base and fixedly connected with the output end of a servo motor, and the servo motor is installed at the left end of the connecting base. The surface of the reciprocating screw rod is in threaded connection with a sliding seat, and the bottom end of the sliding seat is fixedly connected with a fixed seat, so that the corrugated pipe watertightness detection device can conveniently detect the air tightness of a corrugated pipe, can realize direct, convenient and rapid detection, does not need to utilize a water retaining wall, and improves the practicability and convenience of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of watertightness detection of bellows, and more specifically, to a watertightness detection device for bellows. Background Art

[0002] Bellows are tubular elastic sensitive components constructed from foldable corrugated sheets connected along the folding and contracting directions. Bellows are widely used in instrumentation, primarily as measuring elements in pressure gauges, converting pressure into displacement or force. Bellows have thin walls and high sensitivity, with a measurement range of tens of Pa to tens of MPa. After production, bellows undergo watertightness testing. Airtightness testing ensures that double-walled bellows will not leak during use, thereby ensuring their stability and reliability.

[0003] For example, the patent document with the announcement number CN215525035U discloses a bellows detection device, including a base plate, a first bracket mechanism is provided on the right side of the top of the base plate, and a second bracket mechanism is provided on the left side of the top of the base plate, and the first bracket mechanism includes a first bracket plate. The cross-sectional shape of the first bracket plate is set to be U-shaped, and two support rods are provided on the top of the first bracket plate. The utility model fixes the first splint by setting the first bracket mechanism, and the hydraulic cylinder at the bottom of the fixed plate set in the second bracket mechanism drives the setting of the movable splint, so that when fixing the bellows, it is only necessary to first place the tube body between the two annular sealing plates, and then apply pressure to the movable splint through the hydraulic rod so that the movable splint is close to the tube body. At this time, the fixing of the tube body can be completed. Through such operation, the steps required for fixing the bellows are significantly reduced.

[0004] Existing bellows watertightness detection devices usually use water injection to determine the sealing performance of the bellows, but the bellows must be completely filled with water to determine the quality of the airtightness, which is too cumbersome. In order to solve the above technical problems, this application proposes a bellows watertightness detection device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a watertightness detection device for a bellows.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions:.

[0007] A bellows watertightness detection device comprises: a water tank and a servo motor, a detection mechanism is provided above the water tank, a mounting structure is provided above the water tank, the detection mechanism comprises a fixing frame, the fixing frame is fixedly connected to the upper end of the water tank, the upper end of the fixing frame is fixedly connected to a cylinder, the output end of the cylinder passes through the fixing frame, the bottom end of the cylinder is fixedly connected to a connecting seat, a reciprocating screw is rotatably provided on the inner wall of the connecting seat, the reciprocating screw is fixedly connected to the output end of the servo motor, the servo motor is installed at the left end of the connecting seat, the surface of the reciprocating screw is connected to a sliding seat by a thread, the bottom end of the sliding seat is fixedly connected to the fixed seat, a clamping tube is installed inside the fixed seat, one end of the clamping tube is connected to an air inlet pipe, and two groups of clamping tubes are provided.

[0008] Preferably, the outer wall of the connecting seat is fixedly connected to the chassis, the inner wall of the chassis is fixedly connected to a connecting plate, a bottom plate is installed on the connecting plate, and the bottom plate is fixedly connected to the bottom end of the servo motor.

[0009] Preferably, a connecting hole is provided inside the base plate, and the connecting hole is provided inside the connecting plate, and a connecting bolt is installed inside the connecting hole.

[0010] Preferably, the upper end of the sliding seat is fixedly connected to a limiting block, and the limiting block at the upper end of the sliding seat is slidably arranged in a sliding cavity opened inside the connecting seat.

[0011] Preferably, a sealing ring is fixedly connected to the outer wall of the fixing seat, and the sealing ring is installed on the clamping tube surface in a circular ring shape.

[0012] Preferably, the mounting structure includes a mounting seat, the mounting seat is fixedly connected to the outer wall of the clamping tube, a mounting groove is provided inside the mounting seat, and the mounting groove is provided inside the fixing seat, and a mounting bolt is installed inside the mounting groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the bellows to be tested is placed between two groups of clamps through the cooperation of a reciprocating screw, a sliding seat, a fixed seat, a clamping tube and an air intake pipe. One group of clamps is connected to the air intake pipe, and the other group of clamps is not connected to the air intake pipe. Then, the servo motor is started to drive the reciprocating screw to rotate. Under the action of the thread, the sliding seat is driven to move. Under the action of the bidirectional thread, the two groups of sliding seats are driven to move relative to each other, thereby driving the two groups of fixed seats and the clamping tubes to move synchronously. Finally, the two groups of clamping tubes are used to block the two ends of the bellows. At this time, the bellows is in a sealed state. state, and then start the cylinder to drive the connecting seat to move downward, so that the detection mechanism as a whole enters the water inside the water tank, and then the external air source supplies air, so that the gas enters the clamping tube through the air inlet pipe and then enters the bellows. At this time, if there are no bubbles in the water inside the water tank, it can be shown that the sealing effect of the bellows is good. If there are bubbles, it is considered that the sealing effect of the bellows is poor. The bellows watertight detection device can conveniently detect the airtightness of the bellows, and can realize direct, convenient and rapid detection. There is no need to use a retaining wall, which improves the practicability and convenience of the device.

[0015] 2. In the present invention, the clamping pipe can be installed inside the fixing seat through the mounting seat, mounting groove and mounting bolts, and during installation, the mounting seat and mounting groove are used for connection and tightening, making its installation more convenient and easy to disassemble and assemble, and convenient for replacement and maintenance. The clamping pipe in the bellows watertight detection device can be easily disassembled and assembled, and is convenient for maintenance and replacement, thereby improving the practicality and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the three-dimensional front view of the structure of the utility model;

[0018] Figure 2 This is a schematic three-dimensional back view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the detection mechanism in the utility model;

[0020] Figure 4 This is a schematic diagram of the explosion of the servo motor and chassis in the utility model;

[0021] Figure 5 For this utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0022] 111. Water tank; 112. Servo motor; 2. Detection mechanism; 211. Fixing bracket; 212. Cylinder; 213. Connecting seat; 214. Reciprocating screw; 215. Sliding seat; 216. Fixing seat; 217. Clamping pipe; 218. Inlet pipe; 219. Chassis; 220. Connecting plate; 221. Bottom plate; 222. Connecting hole; 223. Connecting bolt; 224. Sealing ring; 3. Mounting structure; 311. Mounting seat; 312. Mounting slot; 313. Mounting bolt. DETAILED DESCRIPTION

[0023] like Figure 1-5 As shown, the utility model provides a bellows watertight detection device, comprising: a water tank 111 and a servo motor 112, a detection mechanism 2 is provided above the water tank 111, a mounting structure 3 is provided above the water tank 111, the detection mechanism 2 comprises a fixing frame 211, the fixing frame 211 is fixedly connected to the upper end of the water tank 111, the upper end of the fixing frame 211 is fixedly connected to a cylinder 212, the output end of the cylinder 212 passes through the fixing frame 211, the bottom end of the cylinder 212 is fixedly connected to a connecting seat 213, and the connecting The inner wall of the seat 213 is provided with a reciprocating screw rod 214, which is fixedly connected to the output end of the servo motor 112. The servo motor 112 is installed at the left end of the connecting seat 213. The surface of the reciprocating screw rod 214 is connected to a sliding seat 215 by a thread. The bottom end of the sliding seat 215 is fixedly connected to a fixed seat 216. A clamping tube 217 is installed inside the fixed seat 216. One end of the clamping tube 217 is connected to an air inlet pipe 218. There are two groups of clamping tubes 217. Through this design, the bellows water When the tight detection device is used, the bellows to be tested is placed between the two groups of clamping tubes 217, one group of clamping tubes 217 is connected to the air inlet pipe 218, and the other group of clamping tubes 217 is not connected to the air inlet pipe 218. Then the servo motor 112 is started to drive the reciprocating screw rod 214 to rotate. Under the action of the thread, the sliding seat 215 is driven to move. Under the action of the bidirectional thread, the two groups of sliding seats 215 are driven to move relative to each other, thereby driving the two groups of fixed seats 216 and the clamping tube 217 to move synchronously. Finally, the two groups of fixed seats 216 and the clamping tube 217 are driven to move synchronously. The clamping tube 217 blocks both ends of the bellows. At this time, the bellows is in a sealed state. Then the cylinder 212 is started to drive the connecting seat 213 to move downward, so that the detection mechanism 2 as a whole enters the water inside the water tank 111. Then the external air source supplies air, so that the gas enters the clamping tube 217 through the air inlet pipe 218 and then enters the bellows. If no bubbles appear in the water inside the water tank 111 at this time, it can be shown that the bellows has a good sealing effect. If there are bubbles, it is considered that the bellows has a poor sealing effect.

[0024] Furthermore, the outer wall of the connecting seat 213 is fixedly connected to the chassis 219, the inner wall of the chassis 219 is fixedly connected to the connecting plate 220, and the base plate 221 is installed on the connecting plate 220. The base plate 221 is fixedly connected to the bottom end of the servo motor 112. Through this design, the servo motor 112 is installed on the connecting plate 220 using the base plate 221, so that it is set inside the connecting plate 220 to avoid entering the water source of the water tank 111 and causing damage to the servo motor 112.

[0025] Furthermore, a connecting hole 222 is opened inside the bottom plate 221, and the connecting hole 222 is opened inside the connecting plate 220, and a connecting bolt 223 is installed inside the connecting hole 222. Through this design, the bottom plate 221 and the connecting plate 220 are connected by the connecting bolt 223, and the connection operation is simple and tight.

[0026] Furthermore, the upper end of the sliding seat 215 is fixedly connected to a limiting block, and the limiting block at the upper end of the sliding seat 215 is slidably set in a sliding cavity opened inside the connecting seat 213. Through this design, when the sliding seat 215 moves, the limiting block at the upper end of the sliding seat 215 slides synchronously in the sliding cavity opened inside the connecting seat 213, thereby limiting the position of the sliding seat 215 so that it will not rotate with the reciprocating screw rod 214.

[0027] Furthermore, a sealing ring 224 is fixedly connected to the outer wall of the fixing seat 216, and the sealing ring 224 is installed in a circular ring shape on the surface of the clamping tube 217. Through this design, the sealing ring 224 set on the outer wall of the clamping tube 217 can improve the sealing of the connection between the clamping tube 217 and the two ends of the bellows to avoid air leakage.

[0028] Furthermore, the mounting structure 3 includes a mounting seat 311, which is fixedly connected to the outer wall of the clamping tube 217. A mounting groove 312 is provided inside the mounting seat 311, and the mounting groove 312 is provided inside the fixing seat 216. A mounting bolt 313 is installed inside the mounting groove 312. Through this design, when using the corrugated pipe watertightness detection device, the clamping tube 217 can be installed to the inside of the fixing seat 216, and during installation, the mounting seat 311 and the mounting groove 312 are used for connection and tightening, making its installation more convenient and easy to disassemble and assemble, and convenient for replacement and maintenance.

[0029] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A bellows watertightness detection device, comprising: A water tank (111) and a servo motor (112), characterized in that: a detection mechanism (2) is provided above the water tank (111), a mounting structure (3) is provided above the water tank (111), the detection mechanism (2) comprises a fixing frame (211), the fixing frame (211) is fixedly connected to the upper end of the water tank (111), the upper end of the fixing frame (211) is fixedly connected to a cylinder (212), the output end of the cylinder (212) passes through the fixing frame (211), the bottom end of the cylinder (212) is fixedly connected to a connecting seat (213), the connecting seat A reciprocating screw rod (214) is rotatably provided on the inner wall of (213), and the reciprocating screw rod (214) is fixedly connected to the output end of the servo motor (112). The servo motor (112) is installed at the left end of the connecting seat (213). The surface of the reciprocating screw rod (214) is connected to a sliding seat (215) through a thread. The bottom end of the sliding seat (215) is fixedly connected to a fixed seat (216). A clamping tube (217) is installed inside the fixed seat (216). One end of the clamping tube (217) is connected to an air inlet pipe (218). Two groups of the clamping tubes (217) are provided.

2. The bellows watertightness detection device according to claim 1, characterized in that: The outer wall of the connecting seat (213) is fixedly connected to a chassis (219), the inner wall of the chassis (219) is fixedly connected to a connecting plate (220), a bottom plate (221) is mounted on the connecting plate (220), and the bottom plate (221) is fixedly connected to the bottom end of the servo motor (112).

3. The bellows watertightness detection device according to claim 2, characterized in that: A connecting hole (222) is provided inside the bottom plate (221), and the connecting hole (222) is provided inside the connecting plate (220). A connecting bolt (223) is installed inside the connecting hole (222).

4. The bellows watertightness detection device according to claim 1, characterized in that: The upper end of the sliding seat (215) is fixedly connected to a limiting block, and the limiting block at the upper end of the sliding seat (215) is slidably arranged in a sliding cavity opened inside the connecting seat (213).

5. The bellows watertightness detection device according to claim 1, characterized in that: A sealing ring (224) is fixedly connected to the outer wall of the fixing seat (216), and the sealing ring (224) is installed on the surface of the clamping tube (217) in a circular ring shape.

6. The bellows watertightness detection device according to claim 1, characterized in that: The mounting structure (3) includes a mounting seat (311), the mounting seat (311) is fixedly connected to the outer wall of the clamping tube (217), a mounting groove (312) is provided inside the mounting seat (311), and the mounting groove (312) is provided inside the fixing seat (216), and a mounting bolt (313) is installed inside the mounting groove (312).

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