A fire protection pipeline air tightness detection device

Abstract

The utility model discloses an air tightness detection device for fire-fighting pipes, relates to the technical field of air tightness detection, and aims to solve the problem that the current air tightness detection device cannot clamp a bent pipe, can only detect air tightness by pumping gas into the inside of the bent pipe and immersing it in a water body, and observing bubbles to detect air tightness, but the bent pipe after immersion in water needs to be dried. If the drying is not timely, rust will occur, resulting in a technical problem of high limitations in air tightness detection. The utility model comprises an equipment cabinet and a detection mechanism arranged on the equipment cabinet for performing air tightness detection on a bent pipe body, the detection mechanism comprising a feeding mechanism for supporting the bent pipe body, two end sealing mechanisms for sealing both ends of the bent pipe body, and a top positioning mechanism. The utility model adopts three-point positioning combined with pneumatic air tightness detection, which can avoid the problem of subsequent drying of the bent pipe body, reduce the detection cost and the risk of rust, and greatly reduce the limitations of air tightness detection of fire-fighting pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, and more specifically to an air tightness detection device for a fire protection pipeline. Background Art

[0002] Firefighting pipes refer to pipe materials used in firefighting to connect firefighting equipment and devices and to transport firefighting water, gas or other media. Due to special needs, the thickness and material of firefighting pipes have special requirements, and they are sprayed with red paint to transport firefighting water.

[0003] At present, fire protection pipes are mainly divided into round pipes, bent pipes and special-shaped pipes. Among them, the bent pipes used to change the pipeline laying path need to be tested for air tightness by an air tightness detection device after processing in order to detect whether there are sand holes inside and ensure its air tightness.

[0004] However, the air tightness detection device in the prior art, when detecting a bent pipe, is easy to roll due to the bending characteristics of the bent pipe and cannot be clamped by a fixture. The only way is to pump gas into the bent pipe and immerse it in water to detect air tightness by observing bubbles. Since the fire-fighting pipe has not been painted during the air tightness detection, the bent pipe needs to be dried after being immersed in water. If the drying is not timely, rust will occur, resulting in high limitations in the actual use of the immersion air tightness detection method.

[0005] In view of this, we propose a fire protection pipeline air tightness detection device. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a fire-fighting pipeline air tightness detection device to solve the problem that the current air tightness detection device cannot clamp the bent pipe and can only detect the air tightness by pumping gas into the inside of the bent pipe and immersing it in water to observe the bubbles. The bent pipe after immersion in water needs to be dried. If the drying is not timely, rust will occur, resulting in a technical problem of high limitations in air tightness detection.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a fire protection pipeline air tightness detection device, comprising an equipment cabinet and a detection mechanism provided on the equipment cabinet for performing air tightness detection on a bend pipe body;

[0008] The detection mechanism includes a feeding mechanism for supporting the bent pipe body, two end sealing mechanisms for sealing the two ends of the bent pipe body, and a top positioning mechanism for cooperating with the feeding mechanism to position the middle of the bent pipe body. The end sealing mechanisms are symmetrically arranged on both sides of the top of the feeding mechanism, and the top positioning mechanism is arranged on the top of the feeding mechanism. The two end sealing mechanisms cooperate with the top positioning mechanism to form a three-point positioning function on the bent pipe body.

[0009] The end sealing mechanism comprises a support frame, in which a cylinder A is fixedly installed, and one end of the piston rod of the cylinder A extending out of the support frame is fixedly connected to a support plate, and a blocking seat is fixedly installed on the side of the support plate away from the cylinder A, and the blocking seat is plugged into one end of the elbow body;

[0010] Two circular grooves are symmetrically provided on one side of the blocking seat, and a pressure measuring tube and an air supply pipe are respectively arranged in the two circular grooves. A pressure gauge and a one-way valve are respectively fixedly installed on one end of the pressure measuring tube and the air supply pipe away from the elbow body.

[0011] The utility model supports the bent pipe body through a feeding mechanism, and completes the clamping of the bent pipe body by three-point positioning formed by two end sealing mechanisms and a top positioning mechanism. After the clamping is completed, the two sealing seats complete the sealing of the two ends of the bent pipe body from both sides, and then the external equipment pumps gas into the air supply pipe equipped with a one-way valve. After the gas is pumped to a specified pressure, the pressure relief condition of the bent pipe body is detected by a pressure gauge, and the pressure relief value is fed back in real time. The three-point positioning is adopted in conjunction with the pneumatic air-tightness detection, which can avoid the problem of subsequent drying of the bent pipe body, reduce the detection cost and the risk of rust, and greatly reduce the limitations of the air-tightness detection of fire-fighting pipelines.

[0012] Preferably, the feeding mechanism comprises a base plate, a linear track is fixedly arranged on one side of the top of the base plate, and two buttons for feeding and discharging are symmetrically arranged on one side of the top of the base plate, and the two buttons are electrically connected to the linear track.

[0013] Preferably, a bracket is installed on the top of the linear track, and a bracket groove for the curved pipe body to rest is opened at the center of the top of the bracket.

[0014] Preferably, the top positioning mechanism includes a bracket, which is fixed on the top of the base plate, and a cylinder B is fixedly arranged at the center of the top of the bracket, and the piston rod of the cylinder B passes through one end of the bracket and is fixedly installed with a positioning seat for abutting the bent pipe body, and an arc-shaped matching groove matching the bent pipe body is centrally opened at the bottom end of the positioning seat.

[0015] Preferably, the support frame is fixedly arranged on one side of the top of the base plate, and two through grooves are symmetrically provided in the support frame, and guide rods are slidably arranged in the two through grooves, and one end of the guide rod is fixedly connected to the support plate.

[0016] Preferably, positioning keys are constructed at four corners of the sealing seat away from the support plate, and a sealing gasket is bonded to one side of the sealing seat.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model supports the elbow body through a feeding mechanism, and completes the clamping of the elbow body by three-point positioning formed by two end sealing mechanisms and a top positioning mechanism. After the clamping is completed, the two sealing seats complete the sealing of the two ends of the elbow body from both sides, and then the external equipment pumps gas into the air supply pipe equipped with a one-way valve. After the gas is pumped to the specified pressure, the pressure relief of the elbow body is detected by a pressure gauge, and the pressure relief value is fed back in real time. The three-point positioning is used in conjunction with the pneumatic airtightness detection, which can avoid the problem of subsequent drying of the elbow body, reduce the detection cost and the risk of rust, and greatly reduce the limitations of the airtightness detection of fire protection pipelines.

[0019] 2. The utility model also supports the bent pipe body by a bracket with a bracket, and then pushes the positioning seat with an arc-shaped matching groove through the cylinder B to push the bent pipe body, and cooperates with the bracket to clamp and position it, and then pushes the two blocking seats to move through two cylinders A, so that the two blocking seats with sealing gaskets complete the blocking of the two ends of the bent pipe from both sides, thereby forming a closed environment in the bent pipe body, which is convenient for air-tightness detection and greatly improves the efficiency of air-tightness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model when testing the air tightness of the elbow body;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the detection mechanism in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the feeding mechanism and the top positioning mechanism in the utility model clamping the bent pipe body in a matching state;

[0024] Figure 5 This is a schematic diagram of the structure of the end sealing mechanism in the utility model;

[0025] Figure 6It is a structural schematic diagram of the end sealing mechanism and the elbow body in the present invention in a matching state.

[0026] Description of the numbers in the figure:

[0027] 1. Equipment cabinet; 2. Detection mechanism; 201. Bottom plate; 202. Support seat; 203. Bracket; 204. Linear track; 205. Button; 3. Bend pipe body; 4. End sealing mechanism; 401. Support frame; 402. Cylinder A; 403. Support plate; 404. Blocking seat; 405. Pressure measuring tube; 406. Air supply pipe; 407. Pressure gauge; 408. One-way valve; 409. Positioning key; 410. Sealing pad; 411. Guide rod; 5. Top positioning mechanism; 501. Bracket; 502. Cylinder B; 503. Positioning seat; 504. Arc-shaped matching groove. DETAILED DESCRIPTION

[0028] like Figure 1 , Figure 2 As shown, the utility model relates to a fire protection pipeline air tightness detection device, comprising an equipment cabinet 1 and a detection mechanism 2 arranged on the equipment cabinet 1 for performing air tightness detection on a curved pipe body 3;

[0029] like Figure 1 , Figure 3 , Figure 5As shown, in the embodiment of the utility model, in order to complete the clamping of the bent pipe body 3, the detection mechanism 2 includes a feeding mechanism for supporting the bent pipe body 3, two end sealing mechanisms 4 for sealing the two ends of the bent pipe body 3 and a top positioning mechanism 5 for cooperating with the feeding mechanism to position in the middle of the bent pipe body 3, the end sealing mechanisms 4 are symmetrically arranged on both sides of the top of the feeding mechanism, and the top positioning mechanism 5 is arranged on the top of the feeding mechanism, the two end sealing mechanisms 4 cooperate with the top positioning mechanism 5 to form a three-point positioning acting on the bent pipe body 3, the end sealing mechanism 4 includes a support frame 401, a cylinder A402 is fixedly installed in the support frame 401, and the piston rod of the cylinder A402 extends out of the support frame 401. One end is fixedly connected to a support plate 403, and a blocking seat 404 is fixedly installed on the side of the support plate 403 away from the cylinder A402, and the blocking seat 404 is plugged into one end of the bent pipe body 3. Two circular grooves are symmetrically provided on one side, and a pressure measuring tube 405 and an air supply pipe 406 are respectively arranged in the two circular grooves. A pressure gauge 407 and a one-way valve 408 are respectively fixedly installed on the ends of the pressure measuring tube 405 and the air supply pipe 406 away from the elbow body 3. The elbow body 3 is supported by a feeding mechanism, and the three-point positioning formed by the two end sealing mechanisms 4 and the top positioning mechanism 5 is used to complete the clamping of the elbow body 3. After the clamping is completed, the two sealing seats 404 complete the sealing of the two ends of the elbow body 3 from both sides, and then the external equipment pumps gas into the air supply pipe 406 equipped with a one-way valve 408. After the gas is pumped to the specified pressure, the pressure relief condition of the elbow body 3 is detected by the pressure gauge 407, and the pressure relief value is fed back in real time. The three-point positioning combined with the pneumatic airtightness detection can avoid the problem of subsequent drying of the elbow body 3, reduce the detection cost and corrosion risk, and greatly reduce the limitations of the airtightness detection of fire protection pipelines.

[0030] like Figure 3 , Figure 4As shown, in the embodiment of the utility model, in order to improve the efficiency of airtightness detection, the feeding mechanism includes a bottom plate 201, a linear track 204 is fixedly arranged on one side of the top of the bottom plate 201, and two buttons 205 for feeding and discharging are symmetrically arranged on one side of the top of the bottom plate 201, and the two buttons 205 are electrically connected to the linear track 204, a bracket 202 is installed on the top of the linear track 204, and a bracket 203 for the bent pipe body 3 to rest is opened at the center of the top of the bracket 202, and the top positioning mechanism 5 includes a bracket 501, the bracket 501 is fixedly arranged on the top of the bottom plate 201, and a cylinder B502 is fixedly arranged at the center of the top of the bracket 501, and the piston rod of the cylinder B502 passes through the bracket 50 1 is fixedly installed with a positioning seat 503 for abutting the elbow body 3, and an arc-shaped matching groove 504 matching the elbow body 3 is centrally opened at the bottom end of the positioning seat 503, and the elbow body 3 is supported by the bracket 202 with the bracket groove 203, and then the positioning seat 503 with the arc-shaped matching groove 504 is pushed by the cylinder B502 to push the elbow body 3, and the bracket 202 is clamped and positioned, and then the two blocking seats 404 are pushed to move by the two cylinders A402, so that the two blocking seats 404 with sealing pads 410 complete the blocking of the two ends of the elbow from both sides, thereby forming a closed environment in the elbow body 3, so as to facilitate the air tightness detection, which greatly improves the efficiency of the air tightness detection.

[0031] like Figure 5 , Figure 6 As shown, in the embodiment of the present utility model, in order to ensure the stability of the air-tightness detection, the support frame 401 is fixedly arranged on one side of the top of the base plate 201, and two through grooves are symmetrically opened in the support frame 401, and guide rods 411 are slidably arranged in the two through grooves, one end of the guide rod 411 is fixedly connected to the support plate 403, and the four corners of the sealing seat 404 away from the side of the support plate 403 are constructed with positioning keys 409, and a sealing gasket 410 is bonded to one side of the sealing seat 404. When the sealing seat 404 is inserted into one end of the bent pipe body 3, the sealing gasket 410 arranged on the sealing seat 404 abuts against one side of the bent pipe body 3, and the four positioning keys 409 are inserted into the bent pipe body 3, which has a positioning effect, thereby ensuring the stability of the air-tightness detection.

[0032] Working principle: This embodiment provides a fire protection pipeline air tightness detection device. When in use, the bent pipe body 3 is placed in the bracket 203 on the bracket 202, and by pressing the button 205, the bracket 202 is driven by the linear track 204 to move to the bottom of the positioning seat 503, and the positioning seat 503 with an arc-shaped matching groove 504 is pushed by the cylinder B502 to push the bent pipe body 3, and the bracket 202 is clamped and positioned, and then the two blocking seats 404 are pushed by two cylinders A402 to move, so that the two sealing seats 404 are provided with sealing gaskets. The sealing seat 404 of 10 completes the sealing of the two ends of the elbow from both sides, thereby forming a closed environment in the elbow body 3, and then the gas is pumped into the air supply pipe 406 equipped with a one-way valve 408 by external equipment. After the gas is pumped to the specified pressure, the pressure relief of the elbow body 3 is detected by the pressure gauge 407, and the pressure relief value is fed back in real time. The three-point positioning combined with the pneumatic airtightness detection can avoid the problem of subsequent drying of the elbow body 3, reduce the detection cost and corrosion risk, and greatly reduce the limitations of the airtightness detection of fire protection pipelines.

[0033] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A fire protection pipeline air tightness detection device, characterized in that: It comprises an equipment cabinet (1) and a detection mechanism (2) arranged on the equipment cabinet (1) and used for performing air tightness detection on a bent pipe body (3); The detection mechanism (2) comprises a feeding mechanism for supporting the curved pipe body (3), two end sealing mechanisms (4) for sealing the two ends of the curved pipe body (3), and a top positioning mechanism (5) for cooperating with the feeding mechanism to position the middle of the curved pipe body (3), the end sealing mechanisms (4) being symmetrically arranged on both sides of the top of the feeding mechanism, and the top positioning mechanism (5) being arranged on the top of the feeding mechanism, and the two end sealing mechanisms (4) cooperating with the top positioning mechanism (5) to form a three-point positioning mechanism acting on the curved pipe body (3); The end sealing mechanism (4) comprises a support frame (401), a cylinder A (402) is fixedly installed in the support frame (401), and one end of the piston rod of the cylinder A (402) extending out of the support frame (401) is fixedly connected to a support plate (403), a blocking seat (404) is fixedly installed on the side of the support plate (403) away from the cylinder A (402), and the blocking seat (404) is plugged into one end of the bent pipe body (3); Two circular grooves are symmetrically provided on one side of the blocking seat (404), and a pressure measuring tube (405) and an air supply tube (406) are respectively arranged in the two circular grooves. A pressure gauge (407) and a one-way valve (408) are respectively fixedly installed on one end of the pressure measuring tube (405) and the air supply tube (406) away from the bent pipe body (3).

2. A fire protection pipeline air tightness detection device according to claim 1, characterized in that: The feeding mechanism comprises a bottom plate (201), a linear track (204) is fixedly arranged on one side of the top of the bottom plate (201), and two buttons (205) for feeding and discharging are symmetrically arranged on one side of the top of the bottom plate (201), and the two buttons (205) are electrically connected to the linear track (204).

3. A fire protection pipeline air tightness detection device according to claim 2, characterized in that: A bracket (202) is installed on the top of the linear track (204), and a bracket groove (203) for the curved pipe body (3) to rest is provided at the center of the top of the bracket (202).

4. A fire protection pipeline air tightness detection device according to claim 3, characterized in that: The top positioning mechanism (5) comprises a bracket (501), the bracket (501) is fixedly arranged on the top of the base plate (201), and a cylinder B (502) is fixedly arranged at the center of the top of the bracket (501), the piston rod of the cylinder B (502) passes through one end of the bracket (501) and is fixedly installed with a positioning seat (503) for abutting against the curved pipe body (3), and an arc-shaped matching groove (504) matching the curved pipe body (3) is opened in the center of the bottom end of the positioning seat (503).

5. A fire protection pipeline air tightness detection device according to claim 3, characterized in that: The support frame (401) is fixedly arranged on one side of the top of the base plate (201), and two through grooves are symmetrically provided in the support frame (401), and guide rods (411) are slidably arranged in the two through grooves, and one end of the guide rod (411) is fixedly connected to the support plate (403).

6. A fire protection pipeline air tightness detection device according to claim 5, characterized in that: The four corners of the blocking seat (404) away from the support plate (403) are all configured with positioning keys (409), and a sealing gasket (410) is bonded to one side of the blocking seat (404).

Images