Air tightness test bench with positioning mechanism

Abstract

The utility model relates to the technical field of air tightness testboards, and provides an air tightness testboard with a positioning mechanism, comprising a workbench, the upper end of the workbench is provided with a placing assembly used for placing a measured object, the two ends of the rear side of the workbench are fixedly connected with support columns, the upper ends of the two support columns are fixedly connected with a support plate, and the support plate is provided with a positioning mechanism. A motor is installed on the outer wall of the upper end of the left side of the supporting plate, a first lifting assembly is arranged at the lower end of the front side of the supporting plate and used for lifting a pressurizing device, a second lifting assembly is arranged at the lower end of the first lifting assembly and used for pressurizing a measured object, and a sealing assembly is arranged outside the bottom end of the second lifting assembly and used for sealing the measured object. And the rear end of the second lifting assembly is provided with a positioning assembly which is used for positioning and measuring a pressurizing position, so that a user can conveniently apply different pressures to the detected object, and the pressure adjusting capability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtightness test benches, and in particular to an airtightness test bench with a positioning mechanism. Background Art

[0002] The air tightness test bench is a professionally manufactured test bench suitable for high-pressure air tightness detection tests on small valves, pipelines, downhole tools and other products, safety valve performance tests and calibrations, high-pressure gas cylinder filling, etc.

[0003] After searching, the existing patent (Announcement No.: CN219703130U) discloses an airtightness test bench, and the key points of its technical solution are: comprising a placement table, a placement box is fixedly connected to the inside of the placement table, and a placement plate is arranged on the top surface of the placement box; a placement frame, the placement frame is fixedly connected to the bottom surface of the placement plate, and an extrusion plate is movably sleeved inside the placement frame; an adjustment component, the adjustment component is arranged inside the extrusion plate, and is used to adjust the position of the extrusion plate. When the staff places pipes or boxes of different sizes inside the placement frame, and at the same time injects clean water into the placement box, and then fixes the placement plate on the top surface of the placement box, the staff can adjust the position of the extrusion plate by injecting clean water into the placement box. After the gas is injected, a positive pressure is generated inside the placement box. If the connection between the pipe or the box is not sealed enough, the clean water inside the placement box can enter the pipe or the box, so that it is convenient for the staff to test the air tightness of materials of different sizes at a later time. The above utility model improves the detection range of the device by detecting objects of different sizes and specifications, and at the same time improves the air tightness of the detection device. However, the device cannot observe the detected objects in real time when in use. At the same time, when the pressure of the device is too high, it may cause damage to the detected objects, thereby reducing the performance of the detected objects and increasing the detection cost. Therefore, it is necessary to design an air tightness test bench with a positioning mechanism. Utility Model Content

[0004] The utility model provides an airtightness test bench with a positioning mechanism, which solves the problems in the related technology.

[0005] The technical solution of the utility model is as follows: a workbench, wherein a placing assembly is provided at the upper end of the workbench for placing a measurement object, pillars are fixedly connected to both ends of the rear side of the workbench, a support plate is fixedly connected to the upper ends of the two pillars, a motor is installed on the outer wall of the left upper end of the support plate, a first lifting assembly is provided at the lower end of the front side of the support plate for lifting and lowering a pressurizing device, a second lifting assembly is provided at the lower end of the first lifting assembly for pressurizing the measurement object, a sealing assembly is provided on the outside of the bottom end of the second lifting assembly for sealing the measurement object, and a positioning assembly is provided at the rear end of the second lifting assembly for positioning and measuring the pressurizing position.

[0006] Preferably, the placement component includes a pressure-resistant placement frame fixedly connected to the upper end of the workbench, the bottom inner wall of the pressure-resistant placement frame is provided with a placement groove, the top outer wall of the pressure-resistant placement frame is provided with a snap-fit ​​groove, the diameter of the snap-fit ​​groove is larger than the placement groove, and the front end outer wall of the placement component is fixedly connected with a high-pressure resistant observation window.

[0007] Preferably, the first lifting assembly includes a first screw rod at the output end of the motor, the top outer wall of the first screw rod is fixedly connected to a first sprocket, and the outer wall of the first sprocket is meshingly connected to a chain.

[0008] Preferably, the first lifting assembly includes a second screw rod rotatably connected to the outer wall of the lower end of the right end of the support plate, the top outer wall of the second screw rod is fixedly connected to a second sprocket, and the outer wall of the second sprocket is meshingly connected to the right end of the chain.

[0009] Preferably, the first lifting assembly also includes a lower pressure plate arranged below the first sprocket, and the lower pressure plate is threadedly connected to the outer walls of the first screw rod and the second screw rod in sequence, the bottom end of the first screw rod is fixedly connected to a first rotating shaft, and the first rotating shaft is rotatably connected to the upper outer wall of the workbench through the rotating shaft, the bottom end outer wall of the second screw rod is fixedly connected to a second rotating shaft, and the bottom end of the second rotating shaft is rotatably connected to the upper outer wall of the workbench through the rotating shaft.

[0010] Preferably, the second lifting assembly includes an electric telescopic rod fixedly connected to the outer wall of the bottom end of the lower pressure plate, the output end of the electric telescopic rod is fixedly connected to a push handle, the bottom end of the push handle is fixedly connected to a push rod, the bottom end of the push rod is fixedly connected to a piston, and the front lower end of the lower pressure plate is fixedly connected to two support rods.

[0011] Preferably, the sealing assembly includes a sealing frame slidably connected to the outer wall of the piston, the bottom ends of the two support rods are fixedly connected to the top outer wall of the sealing frame, the sealing frame is slidably connected to the outer wall of the push rod, the bottom end of the push rod is fixedly connected to a sealing gasket, and the outer wall of the bottom end of the sealing gasket is fixedly connected to a locking sleeve.

[0012] Preferably, the positioning assembly includes a connecting rod fixedly connected to the outer wall of the rear end of the push handle, the rear end of the connecting rod is fixedly connected to a sliding sleeve, the inner wall of the sliding sleeve is slidably connected to a measuring rod, the bottom end of the measuring rod is fixedly connected to the top outer wall of the workbench, and the top end of the measuring rod is fixedly connected to the bottom outer wall of the support plate.

[0013] The working principle and beneficial effects of the utility model are:

[0014] In the utility model, the pressure-resistant placement frame is closed by a sealing frame, and then the sealing gasket is engaged with the engaging groove, and at the same time, the engaging sleeve is engaged with the outer wall of the pressure-resistant placement frame, so as to increase the sealing performance inside the placement groove, thereby increasing the sealing of the placement groove, thereby facilitating the pressurized detection of the detection object inside the placement groove, and then by measuring the moving distance of the sliding sleeve on the rod, it is convenient to understand the moving distance of the piston, and at the same time, it is convenient to locate the moving distance of the piston, so that the user can apply different pressures to the detection object, thereby increasing the pressure regulation ability of the device, and at the same time, through the high-pressure observation window, it is convenient for the user to observe the detection object, thereby reducing the possibility of damage to the object under high pressure, and then by the first rotating shaft and the second rotating shaft, the stability of the rotation of the first screw rod and the second screw rod is increased, thereby improving the stability of the device; BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first lifting assembly proposed in the utility model;

[0019] Figure 4 This is a partial structural diagram of the second lifting assembly and positioning assembly proposed in the utility model;

[0020] In the figure: 1. workbench; 2. placement component; 201. pressure-resistant placement frame; 202. placement slot; 203. locking slot; 204. high-pressure observation window; 3. pillar; 4. support plate; 5. motor; 6. first lifting component; 601. first screw rod; 602. first sprocket; 603. chain; 604. second sprocket; 605. second screw rod; 606. lower pressure plate; 607. first rotating shaft; 608. second rotating shaft; 7. second lifting component; 701. electric telescopic rod; 702. push handle; 703. push rod; 704. piston; 705. support rod; 8. sealing component; 801. sealing frame; 802. sealing pad; 803. locking sleeve; 9. positioning component; 901. connecting rod; 902. sliding sleeve; 903. measuring rod. DETAILED DESCRIPTION

[0021] The following will be combined with 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 of 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.

[0022] The present application embodiment discloses an airtightness test bench with a positioning mechanism, please refer to Figure 1-Figure 3, a workbench 1, a placing component 2 is provided at the upper end of the workbench 1 for placing the measured object, pillars 3 are fixedly connected to both ends of the rear side of the workbench 1, and a support plate 4 is fixedly connected to the upper ends of the two pillars 3. A motor 5 is installed on the outer wall of the left upper end of the support plate 4, and a first lifting component 6 is provided at the lower end of the front side of the support plate 4 for lifting the pressurizing device. A second lifting component 7 is provided at the lower end of the first lifting component 6 for pressurizing the measured object, and a sealing component 8 is provided on the outside of the bottom end of the second lifting component 7 for sealing the measured object. A positioning component 9 is provided at the rear end of the second lifting component 7 for positioning the pressurizing position. Positioning and measurement, the placement component 2 includes a pressure-resistant placement frame 201 fixedly connected to the upper end of the workbench 1, the bottom inner wall of the pressure-resistant placement frame 201 is provided with a placement groove 202, the top outer wall of the pressure-resistant placement frame 201 is provided with a snap-fit ​​groove 203, the diameter of the snap-fit ​​groove 203 is larger than the placement groove 202, the front end outer wall of the placement component 2 is fixedly connected with a high-pressure observation window 204, the first lifting component 6 includes a first screw rod 601 at the output end of the motor 5, the top outer wall of the first screw rod 601 is fixedly connected with a first sprocket 602, the outer wall of the first sprocket 602 is meshed with a chain 603, the first lifting component 6 includes a rotationally connected to the right side of the support plate 4 The outer wall of the lower end of the second screw rod 605 is rotatably connected, and the outer wall of the top end of the second screw rod 605 is fixedly connected to the second sprocket 604, and the outer wall of the second sprocket 604 is meshed and connected with the right end of the chain 603. The first lifting assembly 6 also includes a lower pressure plate 606 arranged below the first sprocket 602, and the lower pressure plate 606 is threadedly connected to the outer walls of the first screw rod 601 and the second screw rod 605 in turn, and the bottom end of the first screw rod 601 is fixedly connected to a first rotating shaft 607, and the first rotating shaft 607 is rotatably connected to the outer wall of the upper end of the workbench 1 through the rotating shaft, and the bottom end outer wall of the second screw rod 605 is fixedly connected to a second rotating shaft 608, and the second rotating shaft 608 The bottom end is rotatably connected to the outer wall of the upper end of the workbench 1 through a rotating shaft. When the first screw rod 601 rotates, the first sprocket 602 is driven to rotate through the first screw rod 601, and the chain 603 is driven to mesh and rotate through the first sprocket 602. The second sprocket 604 is driven to mesh and rotate through the chain 603, so that the first sprocket 602 and the second sprocket 604 rotate in the same direction, so that the second screw rod 605 and the first screw rod 601 rotate in the same direction. At the same time, the first screw rod 601 and the second screw rod 605 are jointly restricted on the lower pressure plate 606, so that the first screw rod 601 and the second screw rod 605 simultaneously drive the lower pressure plate 606 to move downward.

[0023] See also Figure 1-Figure 4The second lifting assembly 7 includes an electric telescopic rod 701 fixedly connected to the outer wall of the bottom end of the lower pressure plate 606, the output end of the electric telescopic rod 701 is fixedly connected to a push handle 702, the bottom end of the push handle 702 is fixedly connected to a push rod 703, the bottom end of the push rod 703 is fixedly connected to a piston 704, and the front lower end of the lower pressure plate 606 is fixedly connected to two support rods 705. The sealing assembly 8 includes a sealing frame 801 slidably connected to the outer wall of the piston 704, the bottom ends of the two support rods 705 are fixedly connected to the outer wall of the top end of the sealing frame 801, the sealing frame 801 is slidably connected to the outer wall of the push rod 703, and the bottom end of the push rod 703 is fixedly connected to a sealing pad 802. The outer wall of the bottom end of the sealing gasket 802 is fixedly connected with a locking sleeve 803. When the output end of the electric telescopic rod 701 moves downward, the electric telescopic rod 701 drives the push handle 702 to move downward, and the push handle 702 drives the push rod 703 to move downward, and the push rod 703 drives the piston 704 downward to apply pressure to the detection object, thereby measuring the pressure condition of the detection object. At the same time, the sealing gasket 802 at the bottom end of the sealing frame 801 is a hard metal outer wall bonded with a sealing cushion, which facilitates the locking of the sealing gasket 802 with the locking groove 203. At the same time, the inner wall of the locking sleeve 803 is bonded with a sealing cushion, which is convenient for further sealing the detection environment of the detection object.

[0024] See also Figure 1 and Figure 4 The positioning assembly 9 includes a connecting rod 901 fixedly connected to the outer wall of the rear end of the push handle 702, the rear end of the connecting rod 901 is fixedly connected to a sleeve 902, the inner wall of the sleeve 902 is slidably connected to a measuring rod 903, the bottom end of the measuring rod 903 is fixedly connected to the top outer wall of the workbench 1, and the top end of the measuring rod 903 is fixedly connected to the bottom outer wall of the support plate 4. When the push handle 702 drives the connecting rod 901 to move downward, the sleeve 902 is driven downward by the connecting rod 901, so that the sleeve 902 slides on the measuring rod 903, and the distance moved by the push handle 702 is converted into the distance moved by the piston 704.

[0025] Working principle and use process: first place the object to be inspected at the bottom end of the placement slot 202 inside the pressure-resistant placement frame 201, start the motor 5, and drive the first screw rod 601 to rotate through the output end of the motor 5, and drive the first sprocket 602 to rotate through the first screw rod 601, and drive the chain 603 to mesh and rotate through the first sprocket 602, and drive the second sprocket 604 to mesh and rotate through the chain 603, and drive the second screw rod 605 to rotate through the second sprocket 604, and drive the lower pressure plate 606 to move downward through the first screw rod 601 and the second screw rod 605 at the same time, and drive the electric telescopic rod 701 to move downward through the lower pressure plate 606, and drive the sealing frame 801 to move downward through the support rod 705 until the top of the pressure-resistant placement frame 201 is attached to each other. The sealing gasket 802 is exactly engaged with the engaging groove 203, and the engaging sleeve 803 is exactly engaged with the outer wall of the top of the pressure-resistant placement frame 201. At this time, the electric telescopic rod 701 is started, and the push handle 702 is driven to move downward through the output end of the electric telescopic rod 701, and the push rod 703 is driven to move downward through the push handle 702, and the piston 704 is driven to move downward through the push rod 703, and the air pressure under the piston 704 is squeezed by the piston 704, so that the test product inside the pressure-resistant placement frame 201 is squeezed, so as to detect the air tightness of the test product. While pressurizing, the staff can observe the pressure condition of the test product through the high-pressure observation window 204, and the user can observe the moving distance of the piston 704 through the measuring rod 903.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An airtightness test bench with a positioning mechanism, comprising: A workbench (1) is characterized in that a placement assembly (2) is provided at the upper end of the workbench (1) for placing a measurement object, pillars (3) are fixedly connected to both ends of the rear side of the workbench (1), a support plate (4) is fixedly connected to the upper ends of the two pillars (3), a motor (5) is installed on the left upper end outer wall of the support plate (4), a first lifting assembly (6) is provided at the front lower end of the support plate (4) for lifting and lowering a pressurizing device, a second lifting assembly (7) is provided at the lower end of the first lifting assembly (6) for pressurizing the measurement object, a sealing assembly (8) is provided on the outside of the bottom end of the second lifting assembly (7) for sealing the measurement object, and a positioning assembly (9) is provided at the rear end of the second lifting assembly (7) for positioning and measuring the pressurizing position.

2. The airtightness test bench with a positioning mechanism according to claim 1, characterized in that: The placement component (2) comprises a pressure-resistant placement frame (201) fixedly connected to the upper end of the workbench (1); a placement groove (202) is provided on the inner wall of the bottom end of the pressure-resistant placement frame (201); a snap-fit ​​groove (203) is provided on the outer wall of the top end of the pressure-resistant placement frame (201); the diameter of the snap-fit ​​groove (203) is larger than that of the placement groove (202); and a high-pressure-resistant observation window (204) is fixedly connected to the outer wall of the front end of the placement component (2).

3. The airtightness test bench with a positioning mechanism according to claim 1, characterized in that: The first lifting assembly (6) comprises a first screw rod (601) at the output end of the motor (5), the top outer wall of the first screw rod (601) being fixedly connected to a first sprocket wheel (602), and the outer wall of the first sprocket wheel (602) being meshingly connected to a chain (603).

4. The airtightness test bench with a positioning mechanism according to claim 3, characterized in that: The first lifting assembly (6) comprises a second screw rod (605) rotatably connected to the outer wall of the lower end of the right end of the support plate (4), the top outer wall of the second screw rod (605) being fixedly connected to the second sprocket (604), and the outer wall of the second sprocket (604) being meshingly connected to the right end of the chain (603).

5. The airtightness test bench with a positioning mechanism according to claim 4, characterized in that: The first lifting assembly (6) further comprises a lower pressure plate (606) arranged below the first sprocket wheel (602), wherein the lower pressure plate (606) is threadedly connected to the outer walls of the first screw rod (601) and the second screw rod (605) in sequence, wherein the bottom end of the first screw rod (601) is fixedly connected to a first rotating shaft (607), wherein the first rotating shaft (607) is rotatably connected to the upper outer wall of the workbench (1) via the rotating shaft, and the bottom end of the second screw rod (605) is fixedly connected to a second rotating shaft (608), wherein the bottom end of the second rotating shaft (608) is rotatably connected to the upper outer wall of the workbench (1) via the rotating shaft.

6. The airtightness test bench with a positioning mechanism according to claim 5, characterized in that: The second lifting assembly (7) comprises an electric telescopic rod (701) fixedly connected to the outer wall of the bottom end of the lower pressure plate (606); the output end of the electric telescopic rod (701) is fixedly connected to a push handle (702); the bottom end of the push handle (702) is fixedly connected to a push rod (703); the bottom end of the push rod (703) is fixedly connected to a piston (704); and the front lower end of the lower pressure plate (606) is fixedly connected to two support rods (705).

7. The airtightness test bench with a positioning mechanism according to claim 6, characterized in that: The sealing assembly (8) comprises a sealing frame (801) slidably connected to the outer wall of the piston (704); the bottom ends of the two support rods (705) are fixedly connected to the outer wall of the top end of the sealing frame (801); the sealing frame (801) is slidably connected to the outer wall of the push rod (703); the bottom end of the push rod (703) is fixedly connected to a sealing gasket (802); and the outer wall of the bottom end of the outer side of the sealing gasket (802) is fixedly connected to a locking sleeve (803).

8. The airtightness test bench with a positioning mechanism according to claim 6, characterized in that: The positioning assembly (9) comprises a connecting rod (901) fixedly connected to the outer wall of the rear end of the push handle (702); the rear end of the connecting rod (901) is fixedly connected to a sliding sleeve (902); the inner wall of the sliding sleeve (902) is slidably connected to a measuring rod (903); the bottom end of the measuring rod (903) is fixedly connected to the outer wall of the top end of the workbench (1); and the top end of the measuring rod (903) is fixedly connected to the outer wall of the bottom end of the support plate (4).

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