New energy automobile air conditioner pipeline expanded connection pressing plate
The design of the expansion connection pressure plate solves the problems of gap corrosion, stress corrosion and high cost caused by welding connections, achieves high strength and reliability of pipeline connections, and reduces safety hazards and maintenance difficulties.
Patent Information
- Application Number
- CN202422977715.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the prior art, automobile air conditioning pipes and pressure plates are connected mainly by welding, which has problems such as crevice corrosion, stress corrosion cracking, connection difficulties and high costs.
The expansion connection pressure plate is adopted. By setting a detachable expansion sleeve and limit piece on the pressure plate body, the friction and connection strength are increased. The pipeline is fixed with rubber pads and limit grooves to avoid pipeline disorder.
It improves the tightness and reliability of pipeline connections, reduces safety hazards, reduces material and labor costs, and simplifies the maintenance process.
Smart Images
Figure CN223411625U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile air conditioners, and in particular relates to an expansion joint pressure plate for air conditioner pipelines of new energy vehicles. Background Art
[0002] In recent years, due to technological development, the market share of new energy vehicles has increased year by year, and more and more capital has been invested in the new energy vehicle industry. At present, the various components of the automobile air-conditioning system are mainly connected by air-conditioning pipes, and the air-conditioning pipe joints are mainly connected by pressure plates. The fault parts of the automobile air-conditioning system usually appear at the joints where the pipes and tube sheets are connected. The quality of the connection between the pipes and tube sheets directly determines the reliability and service life of the pipe system. Connection failure can easily cause major safety hazards. In production, traditional pipes and pressure plates are generally connected by welding technology: welding is a connection method that utilizes the force between molecules or atoms. The welding connection method is simple and widely used. It does not require high processing of pipe holes. The weld has high strength and good tightness. It is suitable for occasions with high breaking strength, small tube sheet thickness, high operating temperature, and strict requirements on joint density.
[0003] However, there are some problems with the existing technology: after welding, there is a gap between the pipe and the pipe hole, which can easily cause gap corrosion; and the residual stress of welding at the joint may cause stress corrosion cracking; when repairing, it is difficult to replace the welded connection pipeline, and the repair welding of joint leakage may affect the reliability of adjacent joints; and the welding connection consumes a lot of energy and materials, and the labor and material costs are high. Therefore, we propose a new energy vehicle air conditioning pipeline expansion connection pressure plate. Utility Model Content
[0004] In response to the problems existing in the above-mentioned technology, the utility model provides a new energy vehicle air-conditioning pipe expansion connection pressure plate, which solves the problem that the existing technology uses welding workers, resulting in high manufacturing costs and poor connection effects for vehicle air-conditioning pipe connections.
[0005] The utility model is implemented as follows: a new energy vehicle air-conditioning pipeline expansion connection pressure plate includes a pressure plate body, the upper end outer wall of the pressure plate body is penetrated by a fixing hole and a through hole, a detachable expansion sleeve is connected to the inside of the through hole, a pipeline is connected to the inside of the expansion sleeve, and a plurality of connection holes are provided on the four outer walls of the pressure plate body, and an adjustable limiter is connected to the inside of the connection hole.
[0006] As a preferred embodiment of the present invention, both upper and lower outer walls of the pressure plate body are provided with limiting grooves, and the limiting grooves are located at the upper and lower ends of the through hole and are interconnected.
[0007] As a preferred embodiment of the present invention, an opening is provided on the outer wall of the lower end of the expansion sleeve, the opening is arranged in a triangular shape, and the port of the opening extends upward and gradually becomes smaller.
[0008] As a preferred embodiment of the present invention, the outer edge of the lower end of the expansion sleeve is fixedly connected to a limiting block, and the outer edge of the upper end of the expansion sleeve is fixedly connected to a limiting ring, and the limiting ring and the limiting block are respectively located inside the limiting grooves provided on the upper and lower end surfaces of the pressure plate body.
[0009] As a preferred embodiment of the present invention, a plurality of rubber pads are fixedly connected to the interior of the expansion sleeve, the rubber pads are arranged in an arc shape, an inner cavity is provided inside the rubber pad, and a filler is provided inside the inner cavity.
[0010] As a preferred embodiment of the present invention, the inner wall of the pressure plate body is provided with multiple groups of mounting grooves and multiple groups of mounting holes, the mounting holes are located on one side of the mounting grooves and are interconnected, the mounting grooves are arranged on both sides of the connecting holes and are interconnected, the mounting grooves correspond to each other, the lower end of the mounting hole is connected with a positioning hole, and the upper end surface of the pressure plate body is provided with multiple groups of limiting holes, the limiting holes are located at the upper end of the mounting hole and are interconnected, and the limiting holes correspond to the positioning holes.
[0011] As a preferred embodiment of the present invention, the limit member includes a left plate and a right plate arranged inside the mounting slot, and an adjusting rod, the outer walls of the left and right plates close to the mounting hole are provided with a tooth groove, the end face of the left plate extending outside the mounting slot is provided with a plurality of card holes, the end of the right plate extending outside the mounting slot is fixedly connected to a plurality of card shafts, the card shafts correspond to the card holes, the adjusting rod passes through the limit hole and extends into the mounting hole, and the lower end of the adjusting rod extends into the positioning hole, the outer wall of the adjusting rod located inside the mounting hole is fixedly connected to a gear, the gear is meshed with the tooth groove, and the end of the adjusting rod located outside the pressure plate body is fixedly connected to a turning handle.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] 1. The utility model increases the expansion area and friction force by setting multiple rubber pads in the expansion barrel, thereby improving the strength and tightness of the connection with the pipeline; and through the use of multiple connection holes and limiters, the pipeline is clamped and fixed, avoiding the safety hazards caused by the scattered pipelines;
[0014] 2. The utility model provides multiple openings on the expansion sleeve to facilitate the insertion of the expansion sleeve into the through hole, so that the opening portion at the lower end of the expansion sleeve is squeezed and moves inward, making it easier for the expansion sleeve to be installed in the through hole. The limiting ring and the limiting block are inserted into the limiting groove to limit and fix the expansion sleeve.
[0015] 3. The utility model drives the adjusting rod to rotate by rotating the handle, and the transmission gear cooperates with the tooth grooves set on the left plate and the right plate to drive the left plate and the right plate to move outside the installation groove, so that the clamping shaft connected to the right plate extends into the clamping hole on the left plate, thereby fixing the left plate and the right plate, limiting the clamped pipeline, and avoiding pipeline disorder and safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional schematic diagram of the pressing plate body provided by an embodiment of the present utility model;
[0018] Figure 3 This is a three-dimensional schematic diagram of an expansion sleeve provided by an embodiment of the present utility model;
[0019] Figure 4 This is a schematic cross-sectional view of a rubber pad provided by an embodiment of the present utility model;
[0020] Figure 5 This is a schematic cross-sectional view of the front view of the pressure plate body provided by an embodiment of the present utility model;
[0021] Figure 6 This is a schematic side sectional view of the pressure plate body provided by an embodiment of the present utility model;
[0022] Figure 7 It is a three-dimensional schematic diagram of a limiting member provided in an embodiment of the present utility model.
[0023] In the figure: 1. Pressure plate body; 2. Limiting member; 3. Expansion sleeve; 4. Pipe; 11. Connecting hole; 12. Fixing hole; 13. Limiting groove; 14. Through hole; 15. Mounting groove; 16. Limiting hole; 17. Positioning hole; 18. Mounting hole; 21. Left side plate; 22. Right side plate; 23. Adjusting rod; 31. Limiting block; 32. Limiting ring; 33. Rubber pad; 34. Opening; 211. Tooth groove; 212. Clamping hole; 221. Clamping shaft; 231. Gear; 232. Turning handle; 331. Filler; 332. Inner cavity. DETAILED DESCRIPTION
[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.
[0025] The structure of the present utility model is described in detail below with reference to the accompanying drawings.
[0026] Example 1:
[0027] like Figure 1As shown, an embodiment of the utility model provides a new energy vehicle air-conditioning pipe expansion connection pressure plate, including a pressure plate body 1, the upper end outer wall of the pressure plate body 1 is penetrated by a fixing hole 12 and a through hole 14, the through hole 14 is internally connected to a detachable expansion sleeve 3, the expansion sleeve 3 is internally connected to a pipe 4, and the four outer walls of the pressure plate body 1 are provided with a plurality of connection holes 11, and the connection holes 11 are internally connected to an adjustable limiter 2; the utility model increases the expansion area and friction force by arranging a plurality of rubber pads 33 in the expansion cylinder, and improves the strength and tightness of the connection with the pipe 4; and by using the plurality of connection holes 11 in combination with the limiter 2, the pipeline is clamped and fixed, thereby avoiding the safety hazard of scattered pipelines.
[0028] like Figure 2 As shown, the upper and lower outer walls of the pressure plate body 1 are both provided with limiting grooves 13, and the limiting grooves 13 are located at the upper and lower ends of the through hole 14 and are interconnected; the two limiting grooves 13 are provided to facilitate the limiting installation of the expansion sleeve 3.
[0029] like Figures 3 and 4 As shown, an opening 34 is provided on the outer wall of the lower end of the expansion sleeve 3. The opening 34 is arranged in a triangular shape, and the port of the opening 34 extends upward and gradually becomes smaller; the outer edge of the lower end of the expansion sleeve 3 is fixedly connected to the limiting block 31, and the outer edge of the upper end of the expansion sleeve 3 is fixedly connected to the limiting ring 32. The limiting ring 32 and the limiting block 31 are respectively located in the limiting grooves 13 provided on the upper and lower end surfaces of the pressure plate body 1; a plurality of rubber pads 33 are fixedly connected to the inside of the expansion sleeve 3, and the rubber pads 33 are arranged in an arc shape. An inner cavity 332 is provided inside the rubber pad 33, and a filler 331 is provided inside the inner cavity 332; the plurality of openings 34 provided on the expansion sleeve 3 facilitate the expansion sleeve 3 to be inserted into the through hole 14, so that the part with the opening 34 at the lower end of the expansion sleeve 3 is squeezed and moved inward, which facilitates the installation of the expansion sleeve 3 in the through hole 14, and the limiting ring 32 and the limiting block 31 are extended into the limiting groove 13 to limit and fix the expansion sleeve 3.
[0030] like Figures 5 and 6 As shown, the inner wall of the pressure plate body 1 is provided with multiple groups of mounting grooves 15 and multiple groups of mounting holes 18, the mounting holes 18 are located on one side of the mounting grooves 15 and are interconnected, the mounting grooves 15 are arranged on both sides of the connecting hole 11 and are interconnected, the mounting grooves 15 correspond to each other, the lower end of the mounting hole 18 is connected with a positioning hole 17, the upper end surface of the pressure plate body 1 is provided with multiple groups of limiting holes 16, the limiting holes 16 are located at the upper end of the mounting holes 18 and are interconnected, and the limiting holes 16 correspond to the positioning holes 17; the provided mounting grooves 15 are convenient for installing the left side plate 21 and the right side plate 22, and the provided mounting holes 18 are convenient for connecting the adjusting rod 23.
[0031] like Figure 7As shown, the limiting member 2 includes a left side plate 21 and a right side plate 22 arranged inside the mounting groove 15, and an adjusting rod 23. The outer wall of the left side plate 21 and the right side plate 22 close to the mounting hole 18 is provided with a tooth groove 211, and the end surface of the left side plate 21 extending outside the mounting groove 15 is provided with a plurality of card holes 212, and the end of the right side plate 22 extending outside the mounting groove 15 is fixedly connected with a plurality of card shafts 221, and the card shafts 221 correspond to the card holes 212. The adjusting rod 23 passes through the limiting hole 16 and extends into the interior of the mounting hole 18, and the lower end of the adjusting rod 23 extends to the interior of the positioning hole 17. The adjusting rod 23 is located on the outer wall inside the mounting hole 18 A gear 231 is fixedly connected, and the gear 231 meshes with the tooth groove 211. The end of the adjusting rod 23 located outside the pressure plate body 1 is fixedly connected to a turning handle 232. During use, the turning handle 232 is rotated to drive the adjusting rod 23 to rotate, and the transmission gear 231 and the gear 231 cooperate with the tooth groove 211 set on the left plate 21 and the right plate 22 to drive the left plate 21 and the right plate 22 to move toward the outside of the installation groove 15, so that the clamping shaft 221 connected to the right plate 22 extends into the clamping hole 212 on the left plate 21, thereby fixing the left plate 21 and the right plate 22, limiting the clamped pipeline, and avoiding pipeline disorder and causing safety hazards.
[0032] Working principle of embodiment 1:
[0033] When in use, the expansion sleeve 3 is conveniently inserted into the through hole 14 through the multiple openings 34 provided on the expansion sleeve 3, so that the opening 34 at the lower end of the expansion sleeve 3 is squeezed and moved inward, which facilitates the expansion sleeve 3 to be installed in the through hole 14, and the limiting ring 32 and the limiting block 31 of the equipment are inserted into the limiting groove 13 to limit and fix the expansion sleeve 3, and the pipe 4 is inserted into the expansion sleeve 3. The expansion sleeve 3 contacts the rubber pad 33, squeezes the rubber pad 33, and the rubber pad 33 is deformed, which facilitates the installation of the pipe 4. The left and right plates 21 and 22 are moved to the outside of the mounting groove 15 so that the card shaft 221 connected to the right plate 22 extends into the card hole 212 on the left plate 21, thereby fixing the left and right plates 21 and 22, limiting the position of the card-connected pipelines, and avoiding pipeline disorder and safety hazards.
[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new energy vehicle air conditioning pipeline expansion connection pressure plate, comprising a pressure plate body (1), characterized in that: A fixing hole (12) and a through hole (14) are provided through the outer wall of the upper end of the pressure plate body (1); a detachable expansion sleeve (3) is connected to the inside of the through hole (14); a pipe (4) is connected to the inside of the expansion sleeve (3); a plurality of connection holes (11) are provided on the four outer walls of the pressure plate body (1); an adjustable limiter (2) is connected to the inside of the connection hole (11).
2. The expansion joint pressure plate for air conditioning pipes of new energy vehicles according to claim 1, characterized in that: The upper and lower outer walls of the pressure plate body (1) are both provided with limiting grooves (13), and the limiting grooves (13) are located at the upper and lower ends of the through hole (14) and are interconnected.
3. The expansion joint pressure plate for air conditioning pipes of new energy vehicles according to claim 1, characterized in that: An opening (34) is provided on the outer wall of the lower end of the expansion sleeve (3). The opening (34) is arranged in a triangular shape, and the end of the opening (34) gradually becomes smaller as it extends upward.
4. The expansion joint pressure plate for air conditioning pipes of new energy vehicles according to claim 3, characterized in that: The outer edge of the lower end of the expansion sleeve (3) is fixedly connected to a limiting block (31), and the outer edge of the upper end of the expansion sleeve (3) is fixedly connected to a limiting ring (32). The limiting ring (32) and the limiting block (31) are respectively located inside limiting grooves (13) provided on the upper and lower end surfaces of the pressure plate body (1).
5. The expansion joint pressure plate for air conditioning pipes of new energy vehicles according to claim 4, characterized in that: A plurality of rubber pads (33) are fixedly connected to the interior of the expansion sleeve (3), the rubber pads (33) are arranged in an arc shape, an inner cavity (332) is provided inside the rubber pad (33), and a filler (331) is provided inside the inner cavity (332).
6. The expansion joint pressure plate for air conditioning pipes of new energy vehicles according to claim 1, characterized in that: The inner wall of the pressure plate body (1) is provided with a plurality of mounting grooves (15) and a plurality of mounting holes (18), the mounting holes (18) are located on one side of the mounting grooves (15) and are interconnected, the mounting grooves (15) are arranged on both sides of the connecting hole (11) and are interconnected, the mounting grooves (15) correspond to each other, the lower ends of the mounting holes (18) are connected with positioning holes (17), the upper end surface of the pressure plate body (1) is provided with a plurality of limiting holes (16), the limiting holes (16) are located on the upper ends of the mounting holes (18) and are interconnected, and the limiting holes (16) correspond to the positioning holes (17).
7. The expansion joint pressure plate for air conditioning pipes of new energy vehicles according to claim 6, characterized in that: The limiting member (2) includes a left side plate (21) and a right side plate (22) arranged inside the mounting groove (15), and an adjusting rod (23); a tooth groove (211) is provided on the outer wall of one side of the left side plate (21) and the right side plate (22) close to the mounting hole (18); a plurality of clamping holes (212) are provided on an end surface of the left side plate (21) extending outside the mounting groove (15); a plurality of clamping shafts (221) are fixedly connected to one end of the right side plate (22) extending outside the mounting groove (15); The clamping shaft (221) corresponds to the clamping hole (212), the adjusting rod (23) passes through the limiting hole (16) and extends into the interior of the mounting hole (18), and the lower end of the adjusting rod (23) extends into the interior of the positioning hole (17), the outer wall of the adjusting rod (23) located inside the mounting hole (18) is fixedly connected to a gear (231), the gear (231) is engaged with the tooth groove (211), and one end of the adjusting rod (23) located outside the pressure plate body (1) is fixedly connected to a turning handle (232).