Four-stand-column sealing device of four-stand-column environmental test chamber

Abstract

The utility model discloses a four-stand-column sealing device of a four-stand-column environmental test chamber, and belongs to the field of four-stand-column environmental test chambers. Comprising a moving oil cylinder; a bracket; the four stand columns are fixedly arranged on piston rods of the movable oil cylinders; the support is provided with a through groove, and the four stand columns are installed in the through groove and movably matched with the support. The sealing assembly is used for sealing the four stand columns; the sealing assembly comprises a connecting piece which is arranged on a piston rod of the movable oil cylinder and located between the movable oil cylinder and the four stand columns. The sealing ring sleeves the outer wall of the lower end of the through groove; the driving part is arranged on the bracket; wherein the connecting piece is located under the sealing ring; after the movable oil cylinder drives the connecting piece to horizontally move to a set position, the driving piece drives the connecting piece to move upwards to abut against the sealing ring. The four-stand-column sealing device of the four-stand-column environment test chamber has the beneficial effect that the sealing effect is good.

Description

Technical Field

[0001] The present application relates to the field of four-post environmental test chambers, and in particular to a four-post sealing device for a four-post environmental test chamber. Background Art

[0002] The four-post environmental test chamber is used to fully or partially simulate the vibration, temperature and humidity environment of the vehicle when it is driving on the road, so as to test the driving conditions of the vehicle under different road surfaces and climatic conditions.

[0003] The steps for adjusting the spacing between the four columns in the existing four-column environmental test chamber are as follows:

[0004] The oil pump drives the oil cylinder to adjust the size of the four columns, and after the adjustment is completed, the sheet metal parts are manually installed for sealing. The disadvantages of this adjustment method are: manual adjustment is time-consuming and labor-intensive, and the adjustment range is small. The sealing effect between the oil cylinder and the sealing plate is not good, and it is easy to leak. Utility Model Content

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a four-column sealing device for a four-column environmental test chamber, including:

[0007] Mobile cylinder;

[0008] Bracket;

[0009] Four uprights, fixed on the piston rod of the moving cylinder;

[0010] The bracket is provided with a through slot, and the four uprights are installed in the through slot and movably cooperate with the bracket;

[0011] Sealing assembly, used for sealing the four columns;

[0012] The sealing assembly includes:

[0013] A connecting piece is provided on the piston rod of the mobile oil cylinder and is located between the mobile oil cylinder and the four columns;

[0014] A sealing ring is sleeved on the outer wall of the lower end of the through groove;

[0015] A driving member, disposed on the bracket;

[0016] The connecting piece is located directly below the sealing ring; when the movable oil cylinder drives the connecting piece to move horizontally to a set position, the driving piece drives the connecting piece to move upward to abut against the sealing ring.

[0017] Furthermore, the driving member comprises:

[0018] The cylinder is fixed on the bracket;

[0019] A tray is fixed on the piston rod of the cylinder;

[0020] When the cylinder drives the tray to move upward, one end of the tray abuts against the connecting piece.

[0021] Furthermore, a first through hole is provided on the tray for the moving cylinder to pass through.

[0022] Furthermore, the connecting piece comprises:

[0023] The mounting frame is sleeved on the piston rod of the mobile oil cylinder, and one end of the mounting frame abuts against the piston rod of the mobile oil cylinder, and the other end abuts against the four uprights;

[0024] A sealing plate, fixed on the mounting frame;

[0025] The soft sealing sleeve is fixed on the mounting frame.

[0026] Further, the mounting frame comprises:

[0027] A tube body, with two ends of the tube body being open;

[0028] A first fixing portion, fixedly disposed on both ends of the tube body;

[0029] The second fixing part is fixedly arranged on both ends of the tube body;

[0030] A third fixing part is fixedly arranged on both ends of the tube body;

[0031] There are gaps between the first fixing part, the second fixing part and the third fixing part, the sealing plate is installed between the first fixing part and the second fixing part, and the soft sealing sleeve is installed between the second fixing part and the third fixing part.

[0032] Furthermore, a second through hole for the tube body to be inserted is provided on the sealing plate.

[0033] Furthermore, a drainage hole is provided on the sealing plate, and a one-way valve is installed in the drainage hole.

[0034] The beneficial effects of the present application are as follows: through the action of the cylinder guide rails, the movable cylinder and the four columns, the wheelbase and the actual distance of the wheel can be automatically adjusted according to the test vehicle; in this process, the movable cylinder drives the connecting part to move horizontally on the pallet until it moves to the set position, and when the cylinder drives the pallet to move up, one end of the pallet abuts against the connecting part, so that one end of the connecting part is completely fitted with the sealing ring, ensuring that the two cannot move, thereby ensuring the sealing effect; reducing the efficiency of manual sealing, the test environment requirements can be met in a shorter time, thereby improving the efficiency of environmental chamber testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0036] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0037] In the attached picture:

[0038] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0039] Figure 2 yes Figure 1 A magnified view of part A;

[0040] Figure 3 is a partial cross-sectional view of an embodiment;

[0041] Figure 4 yes Figure 3 Enlarged view of part B.

[0042] Reference numerals:

[0043] 1. Mobile cylinder; 2. Cylinder guide rail; 3. Bracket; 4. Four columns; 5. Through groove; 6. Connector; 7. Sealing ring; 8. Driving member; 9. Cylinder; 10. Tray; 11. Mounting frame; 12. Closing plate; 13. Soft sealing sleeve; 14. Tube body; 15. First fixing part; 16. Second fixing part; 17. Third fixing part; 18. Second through hole. DETAILED DESCRIPTION

[0044] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0045] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0046] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0047] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0048] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0049] Reference Figure 1-4 The four-column sealing device of the four-column environmental test chamber includes a mobile oil cylinder 1, a cylinder guide rail 2, a bracket 3, four columns 4, and a sealing assembly; the four columns 4 are fixedly arranged on the piston rod of the mobile oil cylinder 1, and a through groove 5 is provided on the bracket 3. The four columns 4 are installed in the through groove 5 and movably cooperate with the bracket 3. The sealing assembly includes a connecting member 6, a sealing ring 7, and a driving member 8; the connecting member 6 is arranged on the piston rod of the mobile oil cylinder 1 and is located between the mobile oil cylinder 1 and the four columns 4. The sealing ring 7 is sleeved on the outer wall of the lower end of the through groove 5, and the connecting member 6 is located directly below the sealing ring 7. The driving member 8 is arranged on the bracket 3, and the driving member 8 is used to drive the connecting member 6 to move upward to abut against the sealing ring 7. Through the action of the cylinder guide rail 2, the mobile cylinder 1 and the four columns 4, it can be automatically adjusted according to the actual distance of the wheelbase and wheelbase of the test vehicle; in this process, the connecting member 6 moves horizontally together with the piston rod of the mobile cylinder 1 until it moves to the set position, and the driving member 8 drives the connecting member 6 to move upward and abut against the sealing ring 7, thereby sealing the through groove 5, reducing the efficiency of manual sealing, and meeting the test environment requirements in a shorter time, thereby improving the efficiency of environmental chamber testing.

[0050] The driving member 8 includes a cylinder 9 and a tray 10; the cylinder 9 is fixed on the bracket 3, the tray 10 is fixed on the piston rod of the cylinder 9, and the tray 10 is provided with a first through hole for the moving cylinder 1 to pass through. The moving cylinder 1 drives the connecting member 6 to move horizontally on the tray 10 until it moves to a set position. When the cylinder 9 drives the tray 10 to move upward, one end of the tray 10 abuts against the connecting member 6, so that one end of the connecting member 6 is completely fitted with the sealing ring 7, ensuring that the two cannot move, thereby ensuring the sealing effect.

[0051] In order to prevent the cylinder 9 from affecting the vertical displacement of the mobile cylinder 1 when it moves upward. The connecting member 6 in the present application includes a mounting frame 11, a sealing plate 12, and a soft sealing sleeve 13; the mounting frame 11 is sleeved on the piston rod of the mobile cylinder 1, and one end abuts against the piston rod of the mobile cylinder 1, and the other end abuts against the four columns 4; the sealing plate 12 is fixed on the mounting frame 11, and the soft sealing sleeve 13 is fixed on the mounting frame 11. Under the action of the soft sealing sleeve 13, the sealing plate 12 and the mobile cylinder 1 are softly sealed. Therefore, when the mobile cylinder 1 drives the sealing plate 12 to move horizontally or up and down, a certain distance will be left for the cylinder 9 to drive up and down.

[0052] The mounting frame includes a tube body 14, a first fixing portion 15, a second fixing portion 16, and a third fixing portion 17; a second through hole 18 is provided on the sealing plate 12 for inserting the tube body 14. The two ends of the tube body 14 are open, and the tube body 14 is sleeved on the piston rod of the mobile cylinder 1, and one end abuts against the piston rod of the mobile cylinder 1, and the other end abuts against the four columns 4; the first fixing portion 15 is fixed on the two ends of the tube body 14, the second fixing portion 16 is fixed on the two ends of the tube body 14, and the third fixing portion 17 is fixed on the two ends of the tube body 14. Among them, there is a gap between the first fixing portion 15, the second fixing portion 16, and the third fixing portion 17, the sealing plate 12 is installed between the first fixing portion 15 and the second fixing portion 16, and the soft sealing sleeve 13 is installed between the second fixing portion 16 and the third fixing portion 17.

[0053] The sealing plate 12 is provided with a drainage hole, in which a one-way valve is installed. Through the drainage hole, condensed water generated during the test is discharged.

[0054] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A four-column sealing device for a four-column environmental test chamber, comprising: Mobile cylinder; Bracket; Four uprights, fixed on the piston rod of the mobile cylinder; The bracket is provided with a through slot, and the four uprights are installed in the through slot and movably cooperate with the bracket; Features: The four-post sealing device of the four-post environmental test chamber also includes: A sealing assembly, used for sealing the four columns; The sealing assembly comprises: A connecting member, provided on the piston rod of the movable oil cylinder and located between the movable oil cylinder and the four columns; A sealing ring, sleeved on the outer wall of the lower end of the through groove; A driving member, disposed on the bracket; Wherein, the connecting member is located directly below the sealing ring; when the movable oil cylinder drives the connecting member to move horizontally to a set position, the driving member drives the connecting member to move upward to abut against the sealing ring.

2. The four-post sealing device of the four-post environmental test chamber according to claim 1, characterized in that: The driving member comprises: A cylinder, fixed on the bracket; A tray, fixedly mounted on the piston rod of the cylinder; When the cylinder drives the tray to move upward, one end of the tray abuts against the connecting piece.

3. The four-post sealing device of the four-post environmental test chamber according to claim 2 is characterized in that: The tray is provided with a first through hole for the moving oil cylinder to pass through.

4. The four-column sealing device of the four-column environmental test chamber according to claim 1 or 2, characterized in that: The connecting piece comprises: A mounting frame is sleeved on the piston rod of the movable oil cylinder, with one end abutting against the piston rod of the movable oil cylinder and the other end abutting against the four upright posts; A sealing plate, fixedly mounted on the mounting frame; The soft sealing sleeve is fixedly arranged on the mounting frame.

5. The four-column sealing device of the four-column environmental test chamber according to claim 4, characterized in that: The mounting frame comprises: A tube body, with two ends of the tube body being open; A first fixing part, fixedly arranged on both ends of the tube body; A second fixing part, fixedly arranged on both ends of the tube body; A third fixing part, fixedly disposed on both ends of the tube body; There are gaps between the first fixing part, the second fixing part and the third fixing part, the sealing plate is installed between the first fixing part and the second fixing part, and the soft sealing sleeve is installed between the second fixing part and the third fixing part.

6. The four-post sealing device of the four-post environmental test chamber according to claim 5, characterized in that: The sealing plate is provided with a second through hole for the tube body to be inserted into.

7. The four-post sealing device of the four-post environmental test chamber according to claim 4, characterized in that: The sealing plate is provided with a drainage hole, and a one-way valve is installed in the drainage hole.

Images