Hydraulic suspension hose crimp structure

Abstract

The utility model relates to a kind of hydraulic suspension hose buckling structure.It solves the technical problems such as damage that can be easily generated in the assembling process of existing hose body.It includes hose body and the shaft body connected with hose body, the sleeve body of the circumferential outside of one end of hose body is sleeved with the mutual positioning of shaft body, the one end of shaft body is shaft interface and the other end is the shaft plug-in part of the circumferential inside of one end of hose body, the circumferential outside of shaft plug-in part is equipped with wavy anti-drop structure, the one end of sleeve body is positioned by jaw joint mechanism and is located the circumferential outside of one end of shaft body close to shaft interface, the circumferential outside of sleeve body is equipped with annular deformation recess structure, which is formed by radial stress extrusion and can make the lateral radial deformation of hose body inward.The advantage is that wavy anti-drop structure can improve the contact area between hose body and shaft body, realize double-layer sealing structure, improve sealing effect, and make the hose stress uniform in ring assembly compression process, reduce damage and improve service life.

Description

Technical Field

[0001] This utility model belongs to the field of fluid transport pipeline technology, specifically relating to a hydraulic suspension hose crimping structure. Background Technology

[0002] In hydraulic systems and fluid transmission pipelines, hoses are critical connecting components, and their performance directly affects the stability and safety of the entire pipeline system. Existing hoses suffer from low fitting precision and poor integration after the mandrel and sleeve are crimped, resulting in insufficient rated pull-out force. Under external impact or pressure fluctuations, relative displacement or even separation can easily occur, reducing service life. Furthermore, existing mandrels and hoses often use single-layer or single-wave seals, with limited contact area and no redundant protection. During ring crimping, the hose is prone to uneven stress and damage, which can easily lead to seal failure under high frequency and high pressure, affecting the user experience. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a hydraulic suspension hose crimping structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A hydraulic suspension hose clamping structure includes a hose body and a mandrel connected to the hose body. A sleeve body, positioned relative to the mandrel body, is fitted around one end of the hose body. The mandrel body has a mandrel interface at one end and a mandrel insertion part inserted into the inner side of one end of the hose body. The mandrel insertion part has a wavy anti-detachment structure that protrudes outward and abuts against the inner wall of the hose body. One end of the sleeve body is clamped by clamps. The mechanism is positioned on the outer circumferential side of the mandrel body near the mandrel interface. The outer circumferential side of the sleeve body is provided with an annular deformation recess structure formed by radial force compression, which can cause the outer side of the hose body to deform radially inward. The wave-shaped anti-detachment structure can make the hose body more evenly stressed when it is ring-fitted, reducing damage to the hose body. The clamping mechanism can facilitate quick clamping between the sleeve body and the mandrel body, improving installation efficiency. The annular deformation recess structure can improve the fitting accuracy between the sleeve body and the hose body, and increase service life.

[0005] In the aforementioned hydraulic suspension hose crimping structure, the jaw clamping mechanism includes an annular clamping protrusion disposed on the outer circumferential side of one end of the mandrel body near the mandrel interface. An annular step is provided on the side of the mandrel interface near the annular clamping protrusion. An annular clamping groove is formed between the annular clamping protrusion and the annular step. One end of the sleeve body has a jaw portion extending inward and engaging with the annular clamping groove. The annular clamping groove facilitates the placement of the jaw portion, and the annular step and the annular clamping protrusion abut against each other on both sides of the jaw portion to ensure clamping stability.

[0006] In the aforementioned hydraulic suspension hose crimping structure, the annular snap-fit ​​protrusion has an inclined beveled guide surface on the side near the annular step. The beveled guide surface facilitates the deformation and embedding of the jaws of the sleeve body, ensuring the assembly effect.

[0007] In the above-mentioned hydraulic suspension hose crimping structure, the jaw portion is annular and the outer diameter of the annular step is larger than the inner diameter of the jaw portion. The outer diameter of the annular step is smaller than the outer diameter of the sleeve body, which can ensure the snapping effect between the annular step and the jaw portion and ensure the snapping stability between the sleeve body and the mandrel body.

[0008] In the aforementioned hydraulic suspension hose crimping structure, the wave-shaped anti-detachment structure includes two annular anti-detachment portions that are sequentially arranged on the outer circumference of the spindle insertion portion and protrude outwards. The annular anti-detachment portions are integrally formed on the spindle insertion portion. The end of the annular anti-detachment portion away from the spindle interface has a first conical annular portion, and the diameter of the first conical annular portion gradually increases from the end away from the spindle interface to the end near the spindle interface. The annular anti-detachment portion and the first conical annular portion can guide the hose body and increase the contact area between the spindle insertion portion and the hose body, thereby improving the sealing stress.

[0009] In the aforementioned hydraulic suspension hose crimping structure, the annular anti-detachment portion includes an annular equal-diameter portion connected to the end of the first conical annular portion near the mandrel interface, and a second conical annular portion is provided at the end of the annular equal-diameter portion away from the first conical annular portion. The first and second conical annular portions, through the annular equal-diameter portion, can increase the contact area between the inner wall of the mandrel and the inner wall of the hose, improve the sealing stress, reduce damage to the inner wall of the hose, and improve service life.

[0010] In the aforementioned hydraulic suspension hose crimping structure, the diameters at both ends of the annular equal diameter portion are equal and are equal to the diameters at the ends of the first conical annular portion and the second conical annular portion near the annular equal diameter portion. The diameter of the second conical annular portion gradually decreases from the end near the annular equal diameter portion to the other end, which can ensure the contact area between the hose body and the mandrel body and ensure the sealing effect.

[0011] In the aforementioned hydraulic suspension hose crimping structure, the annular deformation recess structure includes two annular deformation grooves formed on the outer circumferential side of the sleeve body and recessed inward by radial force compression. The inner circumferential side of the sleeve body forms an annular protrusion that corresponds one-to-one with the annular deformation grooves and causes the outer side of the hose body to be radially compressed and deformed inward. The annular protrusion can increase the contact area between the sleeve body and the hose body, further improving the installation stability of the hose body between the sleeve body and the mandrel body.

[0012] In the aforementioned hydraulic suspension hose crimping structure, one of the two annular deformation grooves is located between the two annular anti-detachment parts, and the remaining annular deformation groove is located between the annular step and an annular anti-detachment part near the annular step, further improving the clamping effect of the sleeve body on the hose body and ensuring the installation stability of the hose body.

[0013] In the above-mentioned hydraulic suspension hose crimping structure, the outer wall of the mandrel body is a smooth structure, and the inner wall of the sleeve body is a smooth structure, which can effectively reduce the damage to the hose body during the crimping process, improve the service life of the hose body, and ensure the sealing effect.

[0014] Compared with existing technologies, the advantages of this utility model are: 1. The wavy anti-detachment structure can increase the contact area between the hose body and the mandrel body, and can achieve a double-layer sealing structure, improve the sealing effect, and make the hose evenly stressed during the ring compression process, reducing damage and increasing service life. 2. The clamping mechanism can improve the clamping efficiency between the mandrel body and the sleeve body, ensure the clamping effect, and improve the pull-out resistance, impact resistance and durability of the hose assembly; 3. The annular deformation recessed structure can increase the contact area between the sleeve body and the hose body, further improving the connection and sealing effect of the hose body between the sleeve body and the mandrel body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the sleeve body in this utility model; Figure 3 This is a cross-sectional view of the flexible tube body in this utility model; Figure 4 This is a schematic diagram of the structure of the mandrel in this utility model.

[0016] In the figure: hose body 1, mandrel body 2, mandrel interface 21, mandrel insertion part 22, sleeve body 3, wave-shaped anti-detachment structure 4, annular anti-detachment part 41, annular equal diameter part 411, second conical annular part 412, first conical annular part 42, jaw clamping mechanism 5, annular clamping protrusion 51, oblique guide surface 511, annular step 52, annular clamping groove 53, jaw part 54, annular deformation recess structure 6, annular deformation groove 61, annular protrusion 62. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this hydraulic suspension hose crimping structure includes a hose body 1 and a mandrel body 2 connected to the hose body 1. The hose body 1 is a braided hose, which has good shock absorption and noise reduction effects, and can improve the NVH performance of the system. It is also convenient for the hose body 1 to be installed and removed. A sleeve body 3 is fitted around one end of the hose body 1 and positioned to the mandrel body 2. One end of the mandrel body 2 is a mandrel interface 21, and the other end is a mandrel insertion part 22 that is inserted into the inner side of one end of the hose body 1. The mandrel insertion part 22 has a wavy anti-detachment structure 4 that protrudes outward and abuts against the inner wall of the hose body 1. The sleeve body 3... The end is clamped and positioned on the outer circumferential side of the mandrel body 2 near the mandrel interface 21 by the clamping mechanism 5. The outer circumferential side of the sleeve body 3 is provided with an annular deformation recess structure 6 formed by radial force compression, which can cause the outer side of the hose body 1 to deform radially inward. The wave-shaped anti-detachment structure 4 can make the hose body 1 more evenly stressed during ring clamping, reducing damage to the hose body 1. The clamping mechanism 5 can facilitate quick clamping between the sleeve body 3 and the mandrel body 2, improving installation efficiency. The annular deformation recess structure 6 can improve the fitting accuracy between the sleeve body 3 and the hose body 1, and improve service life.

[0019] Specifically, the jaw locking mechanism 5 includes an annular locking protrusion 51 located on the outer circumferential side of one end of the spindle body 2 near the spindle interface 21. An annular step 52 is provided on one side of the spindle interface 21 near the annular locking protrusion 51. An annular locking groove 53 is formed between the annular locking protrusion 51 and the annular step 52. One end of the sleeve body 3 has a jaw portion 54 extending inward and engaging with the annular locking groove 53. The annular locking groove 53 facilitates the placement of the jaw portion 54, and the annular step 52 and the annular locking protrusion 51 abut against each other on both sides of the jaw portion 54 to ensure locking stability.

[0020] Among them, the annular snap ring 51 has an inclined angled guide surface 511 on the side near the annular step 52. The angled guide surface 511 facilitates the deformation and insertion of the jaw part 54 of the sleeve body 3, ensuring the assembly effect.

[0021] like Figure 1 , Figure 2 , Figure 4 As shown, the jaw portion 54 is annular and the outer diameter of the annular step 52 is larger than the inner diameter of the jaw portion 54. The outer diameter of the annular step 52 is smaller than the outer diameter of the sleeve body 3, which can ensure the snapping effect between the annular step 52 and the jaw portion 54 and ensure the snapping stability between the sleeve body 3 and the mandrel body 2.

[0022] Furthermore, the wave-shaped anti-detachment structure 4 includes two annular anti-detachment portions 41 that are sequentially arranged around the mandrel insertion portion 22 and protrude outwards. The annular anti-detachment portions 41 are integrally formed on the mandrel insertion portion 22. The end of the annular anti-detachment portion 41 away from the mandrel interface 21 has a first conical annular portion 42, and the diameter of the first conical annular portion 42 gradually increases from the end away from the mandrel interface 21 to the end near the mandrel interface 21. The annular anti-detachment portion 41 and the first conical annular portion 42 can guide the hose body 1 and increase the contact area between the mandrel insertion portion 22 and the hose body 1, thereby increasing the sealing stress.

[0023] The annular anti-detachment part 41 includes an annular equal diameter part 411 connected to the end of the first conical annular part 42 near the mandrel interface 21, and a second conical annular part 412 is provided at the end of the annular equal diameter part 411 away from the first conical annular part 42. The first conical annular part 42 and the second conical annular part 412 can increase the contact area between the inner wall of the mandrel body 2 and the inner wall of the hose body 1 through the annular equal diameter part 411, improve the sealing stress, reduce damage to the inner wall of the hose body 1, and improve the service life.

[0024] Combination Figure 1 , Figure 4 As shown, the diameters of both ends of the annular equal diameter portion 411 are equal and are equal to the diameters of the first conical annular portion 42 and the second conical annular portion 412 near the annular equal diameter portion 411. The diameter of the second conical annular portion 412 gradually decreases from one end near the annular equal diameter portion 411 to the other end. This ensures the contact area between the hose body 1 and the spindle body 2, and also guides the hose body 1, reducing damage to the hose body 1 and ensuring a sealing effect.

[0025] The annular deformation recess structure 6 includes two annular deformation grooves 61 formed on the outer circumference of the sleeve body 3 by radial force compression and recessed inward. Annular protrusions 62 are formed on the inner circumference of the sleeve body 3, which correspond one-to-one with the annular deformation grooves 61 and cause the outer side of the hose body 1 to be radially compressed and deformed inward. The annular protrusions 62 can increase the contact area between the sleeve body 3 and the hose body 1, and further improve the installation stability of the hose body 1 between the sleeve body 3 and the mandrel body 2.

[0026] Specifically, one of the two annular deformation grooves 61 is located between the two annular anti-detachment parts 41, and the remaining annular deformation groove 61 is located between the annular step 52 and an annular anti-detachment part 41 near the annular step 52, which further improves the clamping effect of the sleeve body 3 on the hose body 1 and ensures the installation stability of the hose body 1.

[0027] Combination Figure 1As shown, the outer wall of the mandrel body 2 is a smooth structure, and the inner wall of the sleeve body 3 is a smooth structure, which can effectively reduce the damage to the hose body 1 during the crimping process, improve the service life of the hose body 1, and ensure the sealing effect.

[0028] The principle of this embodiment is as follows: the wave-shaped anti-detachment structure 4 facilitates the assembly of the hose body 1 onto the mandrel body 2, and increases the contact area between the hose body 1 and the mandrel body 2, thereby improving the connection sealing effect. The clamping mechanism 5 facilitates the quick installation of the sleeve body 3 and the mandrel body 2, improving installation efficiency, and allows the mandrel body 1 and the sleeve body 3 to form a whole, increasing the pull-out force. Furthermore, the annular deformation recessed structure 6 increases the contact area between the sleeve body 3 and the hose body 1, thereby improving the installation stability of the hose body 1 between the sleeve body 3 and the mandrel body 2.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0030] Although this document frequently uses terms such as hose body 1, mandrel body 2, mandrel interface 21, mandrel insertion part 22, sleeve body 3, wave-shaped anti-detachment structure 4, annular anti-detachment part 41, annular equal diameter part 411, second conical annular part 412, first conical annular part 42, jaw clamping mechanism 5, annular clamping protrusion 51, beveled guide surface 511, annular step 52, annular clamping groove 53, jaw part 54, annular deformation recess structure 6, annular deformation groove 61, and annular protrusion 62, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A hydraulic suspension hose crimping structure, comprising a hose body (1) and a mandrel body (2) connected to the hose body (1), wherein a sleeve body (3) is circumferentially sleeved on one end of the hose body (1) and positioned relative to the mandrel body (2), characterized in that, One end of the mandrel body (2) is a mandrel interface (21) and the other end is a mandrel insertion part (22) inserted into the inner side of one end of the hose body (1). The mandrel insertion part (22) is provided with a wave-shaped anti-detachment structure (4) that protrudes outward and abuts against the inner wall of the hose body (1) on the outer side. One end of the sleeve body (3) is clamped and positioned on the outer side of the mandrel body (2) near the mandrel interface (21) by a clamping mechanism (5). The outer side of the sleeve body (3) is provided with an annular deformation recess structure (6) that is formed by radial pressure and can deform the outer side of the hose body (1) radially inward.

2. The hydraulic suspension hose crimping structure according to claim 1, characterized in that, The jaw locking mechanism (5) includes an annular locking protrusion (51) disposed on the outer side of one end of the mandrel body (2) near the mandrel interface (21). An annular step (52) is provided on the side of the mandrel interface (21) near the annular locking protrusion (51). An annular locking groove (53) is formed between the annular locking protrusion (51) and the annular step (52). One end of the sleeve body (3) has a jaw portion (54) extending inward and engaging with the annular locking groove (53).

3. The hydraulic suspension hose crimping structure according to claim 2, characterized in that, The annular snap ring (51) has an inclined guide surface (511) on the side near the annular step (52).

4. The hydraulic suspension hose crimping structure according to claim 2, characterized in that, The jaw portion (54) is annular and the outer diameter of the annular step (52) is larger than the inner diameter of the jaw portion (54), while the outer diameter of the annular step (52) is smaller than the outer diameter of the sleeve body (3).

5. A hydraulic suspension hose crimping structure according to claim 2, 3, or 4, characterized in that, The wave-shaped anti-detachment structure (4) includes two annular anti-detachment parts (41) arranged sequentially on the outer side of the mandrel insertion part (22) and protruding outward. The annular anti-detachment parts (41) are integrally formed on the mandrel insertion part (22). The end of the annular anti-detachment part (41) away from the mandrel interface (21) has a first conical annular part (42), and the diameter of the first conical annular part (42) away from the mandrel interface (21) gradually increases towards the end near the mandrel interface (21).

6. A hydraulic suspension hose crimping structure according to claim 5, characterized in that, The annular anti-detachment part (41) includes an annular equal diameter part (411) connected to the end of the first conical annular part (42) near the mandrel interface (21), and the annular equal diameter part (411) is provided with a second conical annular part (412) at the end away from the first conical annular part (42).

7. A hydraulic suspension hose crimping structure according to claim 6, characterized in that, The diameters of the two ends of the annular equal diameter portion (411) are equal and are equal to the diameters of the first conical annular portion (42) and the second conical annular portion (412) near the annular equal diameter portion (411). The diameter of the second conical annular portion (412) gradually decreases from one end near the annular equal diameter portion (411) to the other end.

8. A hydraulic suspension hose crimping structure according to claim 5, characterized in that, The annular deformation recess structure (6) includes two annular deformation grooves (61) formed on the outer side of the sleeve body (3) by radial force compression and recessed inward inward, and annular protrusions (62) formed on the inner side of the sleeve body (3) corresponding one-to-one with the annular deformation grooves (61) and causing the outer side of the hose body (1) to be radially compressed and deformed inward.

9. A hydraulic suspension hose crimping structure according to claim 5, characterized in that, One of the two annular deformation grooves (61) is located between the two annular anti-detachment parts (41), and the remaining annular deformation groove (61) is located between the annular step (52) and an annular anti-detachment part (41) near the annular step (52).

10. A hydraulic suspension hose crimping structure according to claim 1, characterized in that, The outer wall of the mandrel body (2) is a smooth structure, and the inner wall of the sleeve body (3) is a smooth structure.

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