Rim air tightness detection device

Abstract

The utility model discloses a rim airtightness detection device, and relates to the technical field of airtightness detection. The device comprises a lower base and a rim die, a supporting column is fixedly installed on the top face of the lower base, an upper base is fixedly installed on the top face of the supporting column, fixing bases are fixedly installed between the opposite faces of the lower base and the upper base, a left positioning plate is fixedly installed on the top faces of the fixing bases, and a rear side stretching mechanism is arranged on the surface of the left positioning plate. The front limiting plate on the front side is driven to move towards the two sides by rotating the sliding limiting mechanism, the right positioning plate is made to move towards the right side by applying rightward acting force to the right positioning plate, and the rim mold slides into the position between the opposite faces of the left positioning plate and the right positioning plate along the surface of the fixing base. Due to the fact that elastic acting force in the left-right stretching mechanism applies leftward acting force to the right positioning plate, the rim die can be fixed between the left positioning plate and the right positioning plate.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to a rim air tightness detection device. Background Art

[0002] Airtightness testing is a quality control application used for rigorous integrity assessment of aircraft, automobile shells, ships and internal containers, developed for the transportation sector, military sector and basic industries to improve the airtightness of vehicles, aircraft, ships, etc.

[0003] In the prior art, a Chinese patent with authorization announcement number CN217542280U discloses a steel wheel rim air tightness detection device. By setting a bottom mold and an upper mold, it is convenient to seal the upper and lower sides of the rim. Inflation is performed through external inflation and deflation equipment, thereby facilitating the rim air tightness detection. The design of the air pressure sensor facilitates intuitive understanding of the air tightness of the rim.

[0004] The above-mentioned existing technical solutions have the following defects: the bottom mold and the upper mold are of fixed size, and can only perform air tightness testing on automobile rims of the same specification. Since the specifications of rims of different vehicles are different, different testing devices must be frequently replaced when performing air tightness testing on rims of different specifications. The operation is relatively cumbersome, time-consuming and labor-intensive, and is not conducive to improving work efficiency.

[0005] Therefore, a rim air tightness detection device is proposed. Utility Model Content

[0006] The purpose of the present invention is to solve the problems mentioned in the above background technology and provide a rim air tightness detection device.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] The top surface of the fixing plate is fixedly provided with a support column, and the top surface of the fixing column is fixedly provided with an upper base, and the fixing seats are fixedly provided between the opposite surfaces of the lower base and the upper base, and the two fixing seats are symmetrically arranged between the opposite surfaces of the lower base and the upper base. The top surface of the fixing seat is fixedly provided with a left positioning plate, the surface of the left positioning plate is provided with a rear stretching mechanism, and the top surface of the fixing seat is provided with a sliding limit mechanism and left and right stretching mechanisms. The number of the sliding limit mechanisms is two and they are symmetrically distributed on the surface of the fixing seat, the surface of the sliding limit mechanism is slidably provided with a front limit plate, the surface of the left and right stretching mechanisms is fixedly provided with a right positioning plate, and the surface of the rear stretching mechanism is fixedly provided with a rear limit plate, and the top surface of the upper base is fixedly provided with a hydraulic cylinder, the telescopic end of the hydraulic cylinder passes through the surface of the upper base, and the upper side of the fixing seat is fixedly provided with the telescopic end surface of the hydraulic cylinder.

[0009] Furthermore, the sliding limit mechanism includes a first slide groove, the first slide groove is opened on the surface of the fixed seat, a threaded rod is rotatably installed on the inner wall surface of the first slide groove, the threaded rod is set through the surface of the fixed seat, and a knob is fixedly installed on the end surface of the threaded rod located outside the first slide groove, and the front limit plate is threadedly mounted on the surface of the threaded rod and slidably installed on the inner wall surface of the first slide groove.

[0010] Furthermore, the left and right stretching mechanism includes a second slide groove, the second slide groove is opened on the surface of the fixed seat, the number of the second slide grooves is two and they are distributed front and back on the surface of the fixed seat, the first sleeve is fixedly installed on the left surface of the inner wall of the second slide groove, the first limit block is slidably installed on the inner wall surface of the first sleeve, a first spring is fixedly connected between the first sleeve and the opposite surface of the first limit block, the first slide rod is fixedly installed on the side surface of the first limit block away from the first spring, the first slide rod is slidably arranged relative to the inner wall surface of the first sleeve, the first slide rod is fixedly installed on the side surface of the first slide rod away from the first limit block, the first slide rod is slidably installed on the inner wall surface of the second slide groove, and the right positioning plate is fixedly installed on the top surface of the first slide rod.

[0011] Furthermore, the rear stretching mechanism includes a second set rod and a third slide groove, the second set rod is fixedly installed on the side of the left positioning plate, a second limit block is slidably installed on the inner wall surface of the second set rod, a second spring is fixedly connected between the second set rod and the opposite surface of the second limit block, a second slide rod is fixedly installed on the side surface of the second limit block away from the second spring, the second slide rod is slidably arranged relative to the inner wall surface of the second set rod, the third slide groove is opened on the surface of the fixed seat, and a second slider is slidably installed on the inner wall surface of the third slide groove, and the rear limit plate is fixedly installed on the side surface of the second slide rod away from the second limit block and fixedly installed on the top surface of the second slider.

[0012] Furthermore, the rim mold includes a mold body and a mold base, the mold body is fixedly installed on the surface of the mold base, and the mold base is slidably arranged relative to the surface of the fixed seat.

[0013] Furthermore, the right positioning plate has an inverted L-shaped structure, the distance between the second set of rods and the surface of the fixed seat is the same as the distance between the upper end of the right positioning plate and the surface of the fixed seat, and the height of the mold base matches the distance from the second set of rods to the surface of the fixed seat.

[0014] The beneficial effects of the present invention are as follows: when the wheel rim mold needs to be placed, the front limiting plate on the front side is driven to move to both sides by rotating the sliding limiting mechanism, and the right positioning plate is moved to the right side by applying a force to the right side to provide enough space for the placement of the wheel rim mold, and the wheel rim mold is slid along the surface of the fixed seat between the opposite surfaces of the left positioning plate and the right positioning plate. Due to the elastic force inside the left and right stretching mechanisms, the right positioning plate is forced to the left, so that the wheel rim mold can be fixed between the left positioning plate and the right positioning plate. In the process of sliding backward from the front side of the fixed seat to be placed, the wheel rim mold is in contact with the rear limiting plate. The plate surface contacts and causes the rear limit plate to slide gradually toward the rear side. Under the influence of the elastic force inside the rear stretching mechanism, the rear limit plate has a forward force, and the front limit plates on both sides are driven to move toward the middle by rotating the sliding limit mechanism. The front limit plates cooperate with the rear limit plates to limit the front and rear sides of the rim mold, so that rim molds of different specifications can be fixed on the surface of the fixed seat. When performing airtightness testing on rims of different specifications, there is no need to frequently replace the detection device. Rims of different specifications can be tested by only replacing different rim molds. The operation saves time and effort, which is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a top sectional view of the utility model;

[0017] Figure 3 This is a top sectional view of the rear side stretching mechanism of the utility model;

[0018] Figure 4 This is a top sectional view of the left and right stretching mechanisms of the utility model;

[0019] Figure markings: 1. lower base; 2. upper base; 3. support column; 4. fixed seat; 5. sliding limit mechanism; 501. first slide groove; 502. threaded rod; 503. knob; 6. left and right stretching mechanism; 601. second slide groove; 602. first set of rods; 603. first spring; 604. first limit block; 605. first slide bar; 606. first slider; 7. rear stretching mechanism; 701. second set of rods; 702. second spring; 703. second limit block; 704. second slide bar; 705. third slide groove; 706. second slider; 8. hydraulic cylinder; 9. rim mold; 901. mold body; 902. mold base; 10. left positioning plate; 11. right positioning plate; 12. front limit plate; 13. rear limit plate. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 4As shown, a rim air tightness detection device includes a lower base 1 and a rim mold 9, a support column 3 is fixedly installed on the top surface of the lower base 1, and an upper base 2 is fixedly installed on the top surface of the support column 3, and a fixed seat 4 is fixedly installed between the opposite surfaces of the lower base 1 and the upper base 2, and the two fixed seats 4 are symmetrically arranged between the opposite surfaces of the lower base 1 and the upper base 2, and a left positioning plate 10 is fixedly installed on the top surface of the fixed seat 4, and a rear stretching mechanism 7 is provided on the surface of the left positioning plate 10, and a sliding limit mechanism 5 and left and right stretching mechanisms 6 are provided on the top surface of the fixed seat 4. There are two sliding limit mechanisms 5 and they are symmetrically distributed on the surface of the fixed seat 4, a front limit plate 12 is slidably installed on the surface of the sliding limit mechanism 5, a right positioning plate 11 is fixedly installed on the surface of the left and right stretching mechanisms 6, and a rear limit plate 13 is fixedly installed on the surface of the rear stretching mechanism 7, and a hydraulic cylinder 8 is fixedly installed on the top surface of the upper base 2, and the telescopic end of the hydraulic cylinder 8 passes through the surface of the upper base 2, and the upper fixed seat 4 is fixedly installed on the telescopic end surface of the hydraulic cylinder 8.

[0026] Specifically, when the wheel rim mold 9 needs to be placed, the front limiting plate 12 on the front side is driven to move to both sides by rotating the sliding limiting mechanism 5, and the right positioning plate 11 is moved to the right by applying a force to the right side, thereby providing enough space for the placement of the wheel rim mold 9, and the wheel rim mold 9 is slid along the surface of the fixing seat 4 to between the opposite surfaces of the left positioning plate 10 and the right positioning plate 11. Due to the elastic force inside the left and right stretching mechanisms 6, the right positioning plate 11 is applied with a force to the left, so that the wheel rim mold 9 can be fixed between the left positioning plate 10 and the right positioning plate 11. In the process of sliding from the front side of the fixing seat 4 to the rear, the wheel rim mold 9 contacts the surface of the rear limiting plate 13 and causes the rear limiting plate 13 to gradually slide to the rear side, and the rear stretching mechanism 7 Under the influence of the internal elastic force, the rear limit plate 13 has a forward force, and the front limit plates 12 on both sides are driven to move toward the middle by rotating the sliding limit mechanism 5. The front limit plates 12 cooperate with the rear limit plates 13 to limit the front and rear sides of the rim mold 9, so that rim molds 9 of different specifications can all be fixed on the surface of the fixing seat 4, which is convenient for the hydraulic cylinder 8 on the surface of the upper base 2 to drive the upper fixing seat 4 to descend, so that the rim molds 9 on the upper and lower sides overlap to form a closed space, which is convenient for subsequent air tightness testing. When performing air tightness testing on rims of different specifications, there is no need to frequently replace the detection device. Rims of different specifications can be tested by only replacing different rim molds 9. The operation saves time and effort, which is conducive to improving work efficiency.

[0027] like Figures 1 to 4As shown, the sliding limit mechanism 5 includes a first slide groove 501, which is opened on the surface of the fixed seat 4, and a threaded rod 502 is rotatably installed on the inner wall surface of the first slide groove 501. The threaded rod 502 is set through the surface of the fixed seat 4, and a knob 503 is fixedly installed on the surface of one end of the threaded rod 502 located outside the first slide groove 501. The front limit plate 12 is threadedly mounted on the surface of the threaded rod 502 and is slidably installed on the inner wall surface of the first slide groove 501.

[0028] Specifically, by turning the knob 503, the threaded rod 502 is driven to rotate, thereby driving the front limit plate 12 which is threadedly mounted on the surface of the threaded rod 502 and slidably installed on the inner wall surface of the first slide groove 501 to slide left and right. Before placing the rim mold 9, the two front limit plates 12 are slid to both sides to provide sufficient space for placing the rim mold 9. After the rim mold 9 is placed, the front limit plates 12 on both sides are moved toward the middle to facilitate fixed positioning of the rim mold 9, which is beneficial to the stability of the structure and the subsequent air tightness detection of the rim.

[0029] like Figures 1 to 4 As shown, the left and right stretching mechanism 6 includes a second slide groove 601, and the second slide groove 601 is opened on the surface of the fixed seat 4. The number of the second slide grooves 601 is two and they are distributed front and back on the surface of the fixed seat 4. The first set of rods 602 is fixedly installed on the left surface of the inner wall of the second slide groove 601, and the first limit block 604 is slidably installed on the inner wall surface of the first set of rods 602. A first spring 603 is fixedly connected between the opposite surfaces of the first set of rods 602 and the first limit block 604. A first slide rod 605 is fixedly installed on the side surface of the first limit block 604 away from the first spring 603. The first slide rod 605 is slidably arranged relative to the inner wall surface of the first set of rods 602. A first slider 606 is fixedly installed on the side surface of the first slider 605 away from the first limit block 604. The first slider 606 is slidably installed on the inner wall surface of the second slide groove 601, and the right positioning plate 11 is fixedly installed on the top surface of the first slider 606.

[0030] Specifically, by applying a force toward the right side to the right positioning plate 11, the first slider 606 fixedly installed on the bottom surface of the right positioning plate 11 is driven to slide along the inner wall surface of the second slide groove 601, thereby generating a force toward the right side on the first slide bar 605 and the first limit block 604, so that the first slide bar 605 and the first limit block 604 slide along the inner wall surface of the first sleeve rod 602, thereby causing the first spring 603 to be deformed by the external force. After the placement position of the rim mold 9 is determined, under the action of the elastic restoring force of the first spring 603, the first limit block 604 and the first slide bar 605 slide toward the left along the inner wall surface of the first sleeve rod 602, thereby driving the first slider 606 and the right positioning plate 11 to move toward the left until they contact the rim mold 9 and fix the position of the rim mold 9, which is beneficial to the stability of the structure and the subsequent air tightness detection of the rim.

[0031] like Figures 1 to 4 As shown, the rear stretching mechanism 7 includes a second set of rods 701 and a third sliding groove 705. The second set of rods 701 is fixedly installed on the side of the left positioning plate 10. The second limit block 703 is slidably installed on the inner wall surface of the second set of rods 701. A second spring 702 is fixedly connected between the second set of rods 701 and the opposite surface of the second limit block 703. A second slide rod 704 is fixedly installed on the side surface of the second limit block 703 away from the second spring 702. The second slide rod 704 is slidably arranged relative to the inner wall surface of the second set of rods 701. The third sliding groove 705 is opened on the surface of the fixed seat 4. The second slider 706 is slidably installed on the inner wall surface of the third sliding groove 705. The rear limit plate 13 is fixedly installed on the side surface of the second slide rod 704 away from the second limit block 703 and is fixedly installed on the top surface of the second slider 706.

[0032] When the cam 705 is in the closed position, the second limit block 703 and the second slide bar 704 are moved back to the left by the cam 706, and the cam 706 is rotated to move the cam 706 to the right by the cam 706.

[0033] like Figures 1 to 4 As shown, the rim mold 9 includes a mold body 901 and a mold base 902 . The mold body 901 is fixedly mounted on the surface of the mold base 902 , and the mold base 902 is slidably arranged relative to the surface of the fixing seat 4 .

[0034] Specifically, the mold base 902 can slide along the surface of the fixed seat 4, which is convenient for the installation and disassembly of the mold base 902. The replacement is more convenient, time-saving and labor-saving, which is conducive to improving work efficiency. The mold body 901 is fixedly installed on the surface of the mold base 902 to facilitate fixing the mold base 902 without affecting the mold body 901, which is beneficial to the safety of the structure.

[0035] like Figures 1 to 4As shown, the right positioning plate 11 is an inverted L-shaped structure, the distance between the second set of rods 701 and the surface of the fixing seat 4 is the same as the distance between the upper end of the right positioning plate 11 and the surface of the fixing seat 4, and the height of the mold base 902 matches the distance from the second set of rods 701 to the surface of the fixing seat 4.

[0036] Specifically, the second set of rods 701 and the right positioning plate 11 are both at a certain distance from the surface of the fixing seat 4, providing space for placing and taking the rim mold 9. The inverted L-shaped right positioning plate 11 and the second set of rods 701 cooperate to prevent the upper rim mold 9 from falling, increase structural stability, and facilitate subsequent air tightness testing of the rim.

[0037] To sum up: when the wheel rim mold 9 needs to be placed, the front limiting plate 12 on the front side is driven to move to both sides by rotating the sliding limiting mechanism 5, and the right positioning plate 11 is moved to the right by applying a force to the right side, so as to provide enough space for the placement of the wheel rim mold 9, and the wheel rim mold 9 is slid along the surface of the fixing seat 4 to between the opposite surfaces of the left positioning plate 10 and the right positioning plate 11. Due to the elastic force inside the left and right stretching mechanisms 6, the right positioning plate 11 is applied with a force to the left, so that the wheel rim mold 9 can be fixed between the left positioning plate 10 and the right positioning plate 11. In the process of sliding backward from the front side of the fixing seat 4 to be placed, the wheel rim mold 9 is in contact with the rear limiting plate The front limiting plates 12 on both sides are driven toward the middle by rotating the sliding limiting mechanism 5. The front limiting plates 12 cooperate with the rear limiting plates 13 to limit the front and rear sides of the rim mold 9, so that rim molds 9 of different specifications can be fixed on the surface of the fixing seat 4. There is no need to frequently replace the detection device when performing airtightness detection on rims of different specifications. Rims of different specifications can be detected by only replacing different rim molds 9. The operation saves time and effort, which is conducive to improving work efficiency.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A rim air tightness detection device, characterized in that: The invention comprises a lower base (1) and a rim mold (9), wherein a support column (3) is fixedly mounted on the top surface of the lower base (1), an upper base (2) is fixedly mounted on the top surface of the support column (3), a fixing seat (4) is fixedly mounted between the opposing surfaces of the lower base (1) and the upper base (2), two fixing seats (4) are symmetrically arranged between the opposing surfaces of the lower base (1) and the upper base (2), a left positioning plate (10) is fixedly mounted on the top surface of the fixing seat (4), a rear side stretching mechanism (7) is provided on the surface of the left positioning plate (10), and a sliding limiting mechanism (5) and a The left and right stretching mechanisms (6) are provided, the number of the sliding limiting mechanisms (5) is two and they are symmetrically distributed on the surface of the fixed seat (4). A front limiting plate (12) is slidably mounted on the surface of the sliding limiting mechanism (5). A right positioning plate (11) is fixedly mounted on the surface of the left and right stretching mechanisms (6). A rear limiting plate (13) is fixedly mounted on the surface of the rear stretching mechanism (7). A hydraulic cylinder (8) is fixedly mounted on the top surface of the upper base (2). The telescopic end of the hydraulic cylinder (8) passes through the surface of the upper base (2). The upper fixed seat (4) is fixedly mounted on the telescopic end surface of the hydraulic cylinder (8).

2. A rim air tightness detection device according to claim 1, characterized in that: The sliding limiting mechanism (5) includes a first sliding groove (501), the first sliding groove (501) is opened on the surface of the fixed seat (4), a threaded rod (502) is rotatably installed on the inner wall surface of the first sliding groove (501), the threaded rod (502) is set through the surface of the fixed seat (4), and a knob (503) is fixedly installed on the surface of one end of the threaded rod (502) located outside the first sliding groove (501), and the front limiting plate (12) is threadedly mounted on the surface of the threaded rod (502) and slidably installed on the inner wall surface of the first sliding groove (501).

3. A rim air tightness detection device according to claim 1, characterized in that: The left and right stretching mechanism (6) includes a second slide groove (601), the second slide groove (601) is opened on the surface of the fixed seat (4), the number of the second slide grooves (601) is two and they are distributed front and back on the surface of the fixed seat (4), a first sleeve rod (602) is fixedly installed on the left surface of the inner wall of the second slide groove (601), a first limit block (604) is slidably installed on the inner wall surface of the first sleeve rod (602), and a first spring is fixedly connected between the opposite surfaces of the first sleeve rod (602) and the first limit block (604). (603), a first slide bar (605) is fixedly mounted on a side surface of the first limit block (604) away from the first spring (603), the first slide bar (605) is slidingly arranged relative to the inner wall surface of the first sleeve rod (602), a first slider (606) is fixedly mounted on a side surface of the first slide bar (605) away from the first limit block (604), the first slider (606) is slidingly mounted on the inner wall surface of the second slide groove (601), and the right positioning plate (11) is fixedly mounted on the top surface of the first slider (606).

4. A rim air tightness detection device according to claim 1, characterized in that: The rear side stretching mechanism (7) includes a second set of rods (701) and a third sliding groove (705), the second set of rods (701) is fixedly installed on the side of the left positioning plate (10), the second limit block (703) is slidably installed on the inner wall surface of the second set of rods (701), a second spring (702) is fixedly connected between the second set of rods (701) and the opposite surface of the second limit block (703), a second slide rod (704) is fixedly installed on the side surface of the second limit block (703) away from the second spring (702), the second slide rod (704) is slidably arranged relative to the inner wall surface of the second set of rods (701), the third sliding groove (705) is opened on the surface of the fixed seat (4), the second slider (706) is slidably installed on the inner wall surface of the third sliding groove (705), and the rear limit plate (13) is fixedly installed on the side surface of the second slide rod (704) away from the second limit block (703) and fixedly installed on the top surface of the second slider (706).

5. A rim air tightness detection device according to claim 4, characterized in that: The wheel rim mold (9) comprises a mold body (901) and a mold base (902); the mold body (901) is fixedly mounted on the surface of the mold base (902); and the mold base (902) is slidably arranged relative to the surface of the fixed seat (4).

6. A rim air tightness detection device according to claim 5, characterized in that: The right positioning plate (11) has an inverted L-shaped structure, the distance between the second set of rods (701) and the surface of the fixing seat (4) is the same as the distance between the upper end of the right positioning plate (11) and the surface of the fixing seat (4), and the height of the mold base (902) matches the distance from the second set of rods (701) to the surface of the fixing seat (4).

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