Heat-resistant rubber hose for engine

Abstract

The present invention relates to the technical field of automobile parts, and proposes a heat-resistant rubber hose for an engine, comprising a pipe fitting, the pipe fitting having a pipe mouth; a first connecting piece sleeved on the pipe mouth, the first connecting piece having a first inner inserting part and a first outer sleeve, the first inner inserting part and the first outer sleeve respectively abutting against the inner wall and the outer wall of the pipe mouth; a first outer slider slidably arranged on the first outer sleeve, and the sliding direction is along the axial direction of the pipe mouth, and the first outer slider has a first pressing part, and the first pressing part slidably abuts against the outer wall of the pipe fitting. Through the above technical solution, the problem that the rubber hose in the prior art may be deformed or fall off when the temperature changes and bumps.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to a heat-resistant rubber hose for an engine. Background Art

[0002] In modern automobile engine systems, hoses such as cooling water pipes and oil pipes play a vital role. The contents transmitted inside these hoses, such as coolant and oil, usually have a wide temperature range. When the engine is running normally, the temperature of the coolant may rise rapidly from low temperature to high temperature, and the temperature of the oil will also change significantly with the working conditions of the engine. At the same time, the car will inevitably experience various road conditions during driving, and the bumps and vibrations of the car body will be directly transmitted to the engine and its accessories, including these hoses. In a low temperature environment, the overall hardness of the hose is large and the flexibility is reduced. When the temperature rises, the hardness of the hose will be significantly reduced, and its physical properties will change significantly. Under the dual influence of such frequent temperature changes and continuous bumps and vibrations of the car body, the hose faces many technical problems. On the one hand, the hose is prone to swelling and deformation due to vibration at the interface. Because the structure at the interface is relatively weak, under the action of vibration and internal pressure, the hose will expand locally here, which not only affects the normal shape and size of the hose, but also may cause leakage of the internal fluid, thereby affecting the normal cooling or lubrication function of the engine. On the other hand, continuous vibration will also gradually loosen the interface between the hose and other components. Loose interfaces will further increase the risk of leakage and may even cause the hose to fall off, seriously threatening the normal operation of the engine and the driving safety of the vehicle. Summary of the invention

[0003] The present invention provides a heat-resistant rubber hose for an engine, which solves the problem in the related art that the rubber hose may be deformed or fall off when the temperature changes or bumps.

[0004] The technical solution of the present invention is as follows:

[0005] A heat-resistant rubber hose for an engine, comprising:

[0006] A pipe fitting, wherein the pipe fitting has a pipe mouth;

[0007] A first connecting member, wherein the first connecting member is sleeved on the pipe mouth, the first connecting member comprises a first inner inserting portion and a first outer sleeve portion, the first inner inserting portion and the first outer sleeve portion are respectively in contact with the inner wall and the outer wall of the pipe mouth;

[0008] The first outer slider is slidably disposed on the first outer sleeve, and the sliding direction is along the axial direction of the pipe mouth. The first outer slider has a first pressing portion, and the first pressing portion is in sliding contact with the outer wall of the pipe.

[0009] As a further technical solution, the first connecting member has a first inner flow channel and further includes:

[0010] An extension pipe, wherein the extension pipe is arranged on the first connecting member, and the extension pipe has a second inner flow channel, and the first inner flow channel and the second inner flow channel are both used to communicate with the internal channel of the pipe.

[0011] As a further technical solution, it also includes:

[0012] A plurality of clamping blocks are arranged circumferentially on the outer wall of the extension tube, and a sliding channel is provided between two adjacent clamping blocks;

[0013] A second connecting member, the second connecting member is slidably and rotatably sleeved on the extension tube, and after sliding, one end of the second connecting member abuts or cancels the abutment with one end of the first connecting member, the first connecting member and the second connecting member are both cylindrical members, a first annular cavity is formed between the first connecting member, the second connecting member and the extension tube, a plurality of clamping parts are arranged circumferentially on the inner wall of the second connecting member, and the second connecting member is configured so that after sliding, the clamping part slides through the sliding channel into the first annular cavity.

[0014] As a further technical solution, the clamping block has a first guide groove, the clamping portion has a second guide groove, the direction of the first guide groove is parallel to the axial direction of the extension pipe, and the direction of the second guide groove is parallel to the axial direction of the second connecting member, and further includes:

[0015] A first inner slider, wherein the first inner slider is slidably disposed in the first guide groove, and an air pressure chamber is formed between the first inner slider and the first guide groove;

[0016] A second inner slider is slidably disposed in the second guide groove, and the second inner slider is configured to slide into the first guide groove after being driven by the second connecting member to slide and rotate, and one end of the second inner slider abuts against an end of the first inner slider away from the air pressure chamber.

[0017] As a further technical solution, it also includes:

[0018] A first elastic member, wherein one end of the first elastic member acts on the second inner sliding block, and the other end of the first elastic member acts on the inner wall of the second guide groove, providing a force for the second inner sliding block to slide in a direction away from the inner wall of the second guide groove.

[0019] As a further technical solution, it also includes:

[0020] a third connecting member, the third connecting member abutting against an end of the extension tube away from the first connecting member, the third connecting member having a third inner flow channel, the first inner flow channel, the second inner flow channel and the third inner flow channel being interconnected;

[0021] The locking member is rotatably arranged on the third connecting member, and the locking member is threadedly connected to the outer wall of the second connecting member. After the locking member rotates, it drives the second connecting member to slide toward one end close to the third connecting member.

[0022] As a further technical solution, the end of the third connecting member away from the extension pipe has a second inner insert portion and a second outer sleeve portion, and the second inner insert portion and the second outer sleeve portion are used to abut against the inner wall and outer wall of the pipe mouth of another pipe member.

[0023] As a further technical solution, the first pressing portion has a beveled portion.

[0024] The working principle and beneficial effects of the present invention are:

[0025] In the present invention, when the temperature of the contents inside the hose changes and the vehicle body is bumped and vibrated during driving, the first outer slider can slide on the first outer sleeve. For example, when the temperature rises and causes the pipe to expand or the vibration causes the pipe to have a tendency to expand outward, the first pressure portion of the first outer slider will limit the excessive expansion of the pipe, thereby reducing the deformation of the pipe mouth. Through the limiting effect of the first outer slider and its first pressure portion, the expansion and deformation of the pipe mouth under the influence of temperature and vibration are effectively reduced, the normal shape and size of the pipe are guaranteed, and the risk of internal fluid leakage is reduced. The first inner insert and the first outer sleeve of the first connector are respectively abutted against the inner wall and outer wall of the pipe mouth, increasing the contact area and connection tightness between the pipe mouth and the connector, and improving the overall connection stability. It can adapt to the dimensional changes of the pipe due to temperature changes, alleviate the influence of thermal expansion and contraction on the pipe mouth to a certain extent, and extend the service life of the hose. Reducing the deformation of the pipe mouth helps to maintain good sealing performance, ensure that the internal fluid will not leak during the transmission process, and ensure the normal cooling and lubrication function of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0029] Figure 3This is a schematic diagram of the internal structure of the present invention from another perspective;

[0030] Figure 4 for Figure 3 A partial enlarged structural diagram of the middle part;

[0031] Figure 5 for Figure 3 A schematic diagram of the partially enlarged structure of the middle B part;

[0032] Figure 6 It is a structural schematic diagram of the first outer sliding block in the present invention;

[0033] Figure 7 It is a schematic diagram of the second connecting member and the structure of the second connecting member in the present invention.

[0034] In the figure: pipe fitting-1, pipe mouth part-101, first connecting piece-102, first inner insert part-103, first outer sleeve part-104, first inner flow channel-105, first outer slider-2, first pressing part-201, extended pipe fitting-3, second inner flow channel-301, clamping block-4, sliding channel-401, first guide groove-402, second connecting piece-5, forming first annular cavity-501, clamping part-502, second guide groove-503, connecting port-504, first inner slider-6, air pressure cavity-601, second inner slider-7, first elastic piece-8, third connecting piece-9, third inner flow channel-901, second inner insert part-902, second outer sleeve part-903, locking piece-10, oblique mouth part-1102. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0037] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] Reference Figure 1 to Figure 7 An embodiment of the present invention provides a heat-resistant rubber hose for an engine, comprising a pipe fitting 1, the pipe fitting 1 having a pipe mouth portion 101; a first connecting member 102 is sleeved on the pipe mouth portion 101, the first connecting member 102 has a first inner insert portion 103 and a first outer sleeve portion 104, the first inner insert portion 103 and the first outer sleeve portion 104 are respectively abutted against the inner wall and the outer wall of the pipe mouth portion 101; a first outer slider 2 is slidably arranged on the first outer sleeve portion 104, and the sliding direction is along the axial direction of the pipe mouth portion 101, and the first outer slider 2 has a first pressing portion 201, and the first pressing portion 201 is slidably abutted against the outer wall of the pipe fitting 1.

[0040] In this embodiment, when the temperature of the contents inside the hose changes and the vehicle body is bumped and vibrated during driving, the first outer slider 2 can slide on the first outer sleeve 104. For example, when the temperature rises and causes the pipe 1 to expand or the vibration causes the pipe 1 to have a tendency to expand outward, the first pressing portion 201 of the first outer slider 2 will limit the excessive expansion of the pipe 1, thereby reducing the deformation of the pipe mouth 101. Through the limiting effect of the first outer slider 2 and its first pressing portion 201, the expansion and deformation of the pipe mouth 101 under the influence of temperature and vibration are effectively reduced, the normal shape and size of the pipe 1 are guaranteed, and the risk of internal fluid leakage is reduced. The first inner insertion portion 103 and the first outer sleeve 104 of the first connector 102 are respectively in contact with the inner wall and outer wall of the pipe mouth 101, increasing the contact area and connection tightness between the pipe mouth 101 and the connector, and improving the overall connection stability. It can adapt to the dimensional changes of the pipe 1 caused by temperature changes, alleviate the influence of thermal expansion and contraction on the pipe mouth 101 to a certain extent, and extend the service life of the hose. Reducing pipe mouth deformation helps maintain good sealing performance, ensuring that the internal fluid does not leak during transmission, and ensuring the normal cooling and lubrication functions of the engine.

[0041] Furthermore, the first connecting member 102 has a first inner flow channel 105 and also includes an extension pipe 3, which is arranged on the first connecting member 102 and has a second inner flow channel 301. The first inner flow channel 105 and the second inner flow channel 301 are both used to communicate with the internal channel of the pipe 1.

[0042] In this embodiment, when the high-temperature liquid in the pipe fitting 1 flows, it passes through the internal channel of the pipe fitting 1, the first internal flow channel 105 of the first connecting member 102, and the second internal flow channel 301 of the extension pipe fitting 3 in sequence. For example, when the engine is running at high load for a long time, this connected flow channel can ensure smooth flow of the liquid. On the other hand, the extension pipe fitting 3 provides a subsequent connection position. For example, in the case of a complex layout in the engine compartment, the extension pipe fitting 3 can be more conveniently connected to other components to adapt to different installation positions and angle requirements. The extension pipe fitting 3 increases the flow path of the liquid, which helps to better dissipate heat, reduce the temperature of the liquid, and ensure the normal operation of the engine in a high temperature environment. The connected flow channel can flexibly adjust the flow rate and flow rate according to the engine operating conditions to ensure stable cooling or lubrication effects. The subsequent connection position provided by the extension pipe fitting 3 improves the flexibility and convenience of installation and adapts to the complex engine compartment layout. Good heat dissipation and stable flow control reduce engine failures caused by overheating or insufficient lubrication and enhance the reliability of the system. The separately designed extension pipe fitting 3 is easy to disassemble and replace when damaged, reducing maintenance costs and time.

[0043] Furthermore, it also includes a clamping block 4, which is several and arranged circumferentially on the outer wall of the extension tube 3, and a sliding channel 401 is provided between two adjacent clamping blocks 4; the second connecting member 5 is slidably and rotatably sleeved on the extension tube 3, and after sliding, one end abuts against or cancels the abutment with one end of the first connecting member 102, the first connecting member 102 and the second connecting member 5 are both cylindrical members, and a first annular cavity 501 is formed between the first connecting member 102, the second connecting member 5 and the extension tube 3, and a plurality of clamping parts 502 are arranged circumferentially on the inner wall of the second connecting member 5, and the second connecting member 5 is configured so that after sliding, the clamping part 502 slides through the sliding channel 401 and enters the first annular cavity 501.

[0044] In this embodiment, the second connector 5 does not slide continuously, but slides and rotates on the extension pipe 3 through a specific operation. In actual operation, when a stable clamping connection is required, force is applied to the second connector 5 to make it slide and rotate. For example, the second connector 5 is pushed toward the first connector 102 and rotated appropriately, so that the clamping portion 502 arranged circumferentially on the outer wall of the second connector 5 slides through the sliding channel 401 and finally enters the first annular cavity 501, thereby achieving a stable clamping connection. This operation is not continuous, but a one-time adjustment action to form a stable clamping structure. For example, this operation is performed during engine installation or maintenance, and then the clamping structure remains stable during normal operation. Through a one-time sliding and rotating operation, the second connector 5 can be stably clamped in a predetermined position to form a firm connection structure, ensuring that it does not loosen under various working conditions. This structural design makes it easy to connect and adjust the positions of components during installation and maintenance, thereby improving the convenience of operation. A stable connection structure helps to improve the sealing performance of the joints of each component, reduce the possibility of fluid leakage, and ensure the normal operation of the engine. The circumferentially arranged clamping blocks 4 and clamping portions 502 and the formed annular cavity fully utilize the space, making the connection structure compact and adaptable to the limited space in the engine compartment.

[0045] Furthermore, the clamping block 4 has a first guide groove 402, and the clamping portion 502 has a second guide groove 503. The direction of the first guide groove 402 is parallel to the axial direction of the extension tube 3, and the direction of the second guide groove 503 is parallel to the axial direction of the second connecting member 5. It also includes a first inner slider 6, which is slidably arranged in the first guide groove 402, and an air pressure chamber 601 is formed between the first inner slider 6 and the first guide groove 402; the second inner slider 7 is slidably arranged in the second guide groove 503, and the second inner slider 7 is configured to slide into the first guide groove 402 after being driven by the second connecting member 5 to slide and rotate, and one end of the second inner slider 7 abuts against the end of the first inner slider 6 away from the air pressure chamber 601.

[0046] In this embodiment, during the installation process, as the second connector 5 is clamped, the first inner slider 6 slides in the first guide groove 402, thereby compressing the air pressure chamber 601. After the clamping is completed, the air pressure chamber 601 is in a sealed and pressurized state. During the actual installation, the second connector 5 is rotated and slid in a predetermined direction, driving the second inner slider 7 to move in the second guide groove 503 and enter the first guide groove 402. In this process, the first inner slider 6 is pushed to compress the air pressure chamber 601. After clamping, due to the sealing of the air pressure chamber 601, the internal pressure increases. When the engine is running and the internal liquid flow temperature increases, the heat transfer causes the gas inside the air pressure chamber 601 to expand due to heat, and the pressure further increases. This increased pressure pushes the first inner slider 6 to move, and then pushes the first outer slider 2 to extend. For example, when the engine runs at high speed for a long time, causing the coolant temperature to rise sharply, the internal pressure of the air pressure chamber 601 increases, pushing the first outer slider 2 to extend and abut against the outer wall of the pipe 1, providing further support for the pipe 1. According to the change of the internal liquid flow temperature, the air pressure chamber 601 can automatically adjust the pressure and push the first outer slider 2 to provide timely support to adapt to the support requirements of the pipe 1 at different working temperatures. Providing additional support for the pipe 1 when the temperature rises effectively reduces the deformation and loosening of the pipe 1 due to thermal expansion and vibration, and enhances the overall connection stability of the hose. Further support helps to maintain the shape and size of the pipe 1, thereby improving the sealing performance between the pipe 1 and the connector and reducing the risk of leakage. Through adaptive support and protection, fatigue damage to the pipe 1 caused by temperature and vibration is reduced, and the service life of the hose is extended. No additional control device is required, and automatic adjustment is achieved only by relying on the air pressure changes caused by temperature changes, reducing the complexity and cost of the system.

[0047] Furthermore, it also includes a first elastic member 8 , one end of which acts on the second inner slider 7 , and the other end of which acts on the inner wall of the second guide groove 503 , to provide a force for the second inner slider 7 to slide away from the inner wall of the second guide groove 503 .

[0048] In this embodiment, after the installation is completed, the elastic force of the first elastic member 8 and the pressure of the air pressure chamber 601 form a combined force, so that the overall system remains stable and does not move. After the second connecting member 5 is actually installed and clamped, the first elastic member 8 is in a compressed state, generating an elastic force in a specific direction, and the air pressure chamber 601 is in a sealed and pressurized state. At this time, the elastic force and air pressure work together to fix the positions of the second inner slider 7, the clamping block 4 and other related components, and the entire connection structure is stable. When the engine is running, after the internal liquid flow heats up or cools down, the subsequent movement is caused by the change in the internal pressure of the air pressure chamber 601. For example, when the temperature rises, the internal pressure of the air pressure chamber 601 increases, overcomes the elastic force of the first elastic member 8, and pushes the related components to produce corresponding movements; when the temperature drops, the internal pressure of the air pressure chamber 601 decreases, and the elastic force of the first elastic member 8 will return the related components to their initial positions. After the installation is completed, the combined force of the elastic force and air pressure ensures that the system does not move unexpectedly under normal working conditions, ensuring the reliability of the connection. By changing the internal pressure of the air pressure chamber 601 with the temperature, the hose connection structure is adaptively adjusted, effectively coping with the impact of temperature fluctuations on the hose performance. The combined force reduces the relative movement and friction between the components, reduces wear, and extends the service life of the hose and the connection components. The stable combined force makes it difficult for the connection structure to loosen or displace in the engine vibration environment, thereby improving the vibration resistance.

[0049] Furthermore, it also includes a third connecting member 9, which abuts against one end of the extension tube 3 away from the first connecting member 102, and the third connecting member 9 has a third inner flow channel 901, and the first inner flow channel 105, the second inner flow channel 301 and the third inner flow channel 901 are interconnected; the locking member 10 is rotatably set on the third connecting member 9, and the locking member 10 is threadedly connected to the outer wall of the second connecting member 5. After the locking member 10 rotates, it drives the second connecting member 5 to slide toward one end close to the third connecting member 9.

[0050] In this embodiment, the third connecting member 9 is abutted against one end of the extension pipe member 3 away from the first connecting member 102, and is used to connect one end of another pipe member 1. The third connecting member 9 has a third inner flow channel 901, and the first inner flow channel 105, the second inner flow channel 301 and the third inner flow channel 901 are interconnected to ensure smooth transmission of the fluid. The locking member 10 is rotatably arranged on the third connecting member 9 and is threadedly connected to the outer wall of the second connecting member 5. In the actual installation and connection process, when the locking member 10 is rotated, due to the action of the thread, the second connecting member 5 is driven to slide toward the end close to the third connecting member 9, thereby compressing the elastic member and the air pressure chamber 601 that were originally in a normal state. This action causes both the elastic member and the air pressure chamber 601 to be compressed, thereby generating a stable combined force. For example, when the engine is working normally, this combined force can make the connection structure more stable and resist the influence of factors such as vibration and temperature changes. At the same time, the pressurized air pressure chamber 601 responds faster after being heated, and the adjustment range is also larger. For example, when the temperature inside the engine rises rapidly, since the air pressure chamber 601 is in a pressurized state beforehand, the change in its internal pressure is more rapid and significant, which can push the relevant components to adjust more quickly, thereby better adapting to temperature changes, and the adjustment range is also increased accordingly. The stable combined force generated by the compressed elastic member and the air pressure chamber 601 greatly enhances the stability of the entire connection structure and effectively prevents the components from loosening or shifting under harsh working conditions. The pressurized air pressure chamber 601 can respond more quickly after being heated, adjust the connection status in time, and reduce connection problems caused by temperature changes. The larger adjustment range enables the hose to maintain good performance and connection reliability within a wider range of temperature changes. Stable connection and fast and effective temperature adaptability significantly improve the reliability of the engine piping system and reduce the probability of failure.

[0051] Furthermore, the end of the third connecting member 9 away from the extension pipe 3 has a second inner insert portion 902 and a second outer sleeve portion 903 , and the second inner insert portion 902 and the second outer sleeve portion 903 are used to abut against the inner wall and the outer wall of the pipe mouth portion 101 of another pipe 1 .

[0052] In this embodiment, when it is necessary to connect another pipe fitting 1, the second inner insert portion 902 of the third connector 9 is tightly abutted against the inner wall of the nozzle portion 101 of the pipe fitting 1, and the second outer sleeve portion 903 is abutted against the outer wall of the nozzle portion 101. A clamp is used on the outside of the outer sleeve for reinforcement and clamping. In the cooling water pipeline of the engine, the third connector 9 is connected to the nozzle portion 101 of another cooling water pipe or the cooling circulating water pipe of the device to be cooled. The second inner insert portion 902 is inserted into the nozzle and fully contacts the inner wall; the second outer sleeve portion 903 surrounds the outside of the nozzle to achieve all-round connection and sealing. Through the double abutment of the inner insert portion and the outer sleeve portion, the sealing performance of the connection of the pipe fitting 1 is significantly improved, and the leakage of the coolant is effectively prevented. The synergistic effect of the inner insert portion and the outer sleeve portion increases the contact area and support points of the connection part, greatly enhancing the strength and stability of the connection. It can better adapt to the slight differences in size and shape of the nozzle portions 101 of different pipe fittings 1, and improve the versatility and compatibility of the connection. The stable connection method helps to reduce the impact and damage of engine vibration on the connection and extend the service life of the pipe 3.

[0053] Furthermore, the first pressing portion 201 has an oblique opening 1102 .

[0054] In this embodiment, for example, the space in the engine compartment is limited, and the pipe 1 needs to be bent to a certain extent. When the pipe 1 is bent, the beveled portion 1102 of the first pressing portion 201 can correspond to it. When the pipe 1 changes shape due to bending, the inclined structure of the beveled portion 1102 can better adapt to this change and avoid excessive stress concentration between the pressing portion and the pipe 1. For example, when the pipe 1 is bent at a certain angle, the inclined surface of the beveled portion 1102 can fit the curved surface of the pipe 1 instead of contacting it at right angles or in a sharp manner. The design of the beveled portion 1102 effectively reduces the stress concentration at the bend of the pipe 1, prevents damage to the device due to excessive stress, and extends the service life of the device. It can well adapt to the bending requirements of the pipe 1 in a complex layout, and improves the applicability of the device in different installation environments. It avoids damage or rupture of the surface of the pipe 1 due to the mismatched contact between the pressing portion and the bent pipe 1, and ensures the integrity and function of the pipe 1. Even if the pipe 1 is bent, the beveled portion 1102 can still provide effective support and restriction, thereby enhancing the stability of the entire connection structure, and facilitating a more flexible arrangement of the pipe 1 in a limited engine compartment space, thereby improving space utilization.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A heat-resistant hose for an engine, characterized in that: include: A pipe fitting (1), wherein the pipe fitting (1) has a pipe mouth portion (101); a first connecting member (102), the first connecting member (102) being sleeved on the pipe mouth portion (101), the first connecting member (102) comprising a first inner insert portion (103) and a first outer sleeve portion (104), the first inner insert portion (103) and the first outer sleeve portion (104) respectively abutting against the inner wall and the outer wall of the pipe mouth portion (101); a first outer sliding block (2), the first outer sliding block (2) being slidably disposed on the first outer sleeve (104), and the sliding direction being along the axial direction of the pipe mouth (101), and the first outer sliding block (2) having a first pressing portion (201), the first pressing portion (201) being in slidable contact with the outer wall of the pipe (1); The first connecting member (102) has a first inner flow channel (105). An extension pipe (3), the extension pipe (3) being arranged on the first connecting piece (102), the extension pipe (3) having a second inner flow channel (301), the first inner flow channel (105) and the second inner flow channel (301) both being used to communicate with the internal channel of the pipe (1); A plurality of clamping blocks (4) are arranged in a circle on the outer wall of the extension tube (3), and a sliding channel (401) is provided between two adjacent clamping blocks (4); a second connecting member (5), the second connecting member (5) being slidably and rotatably sleeved on the extension tube (3), and after sliding, one end of the second connecting member (5) abuts against or cancels the abutment with one end of the first connecting member (102), the first connecting member (102) and the second connecting member (5) are both columnar members, a first annular cavity (501) is formed between the first connecting member (102), the second connecting member (5) and the extension tube (3), a plurality of clamping portions (502) are arranged circumferentially on the inner wall of the second connecting member (5), and the second connecting member (5) is configured such that after sliding, the clamping portion (502) slides through the sliding channel (401) and enters the first annular cavity (501); The first pressing portion (201) has an oblique opening portion (1102), and the pipe (1) is bent at a certain angle, and the inclined surface of the oblique opening portion (1102) can fit the curved surface of the pipe (1).

2. A heat-resistant rubber hose for an engine according to claim 1, characterized in that: The clamping block (4) has a first guide groove (402), the clamping portion (502) has a second guide groove (503), the direction of the first guide groove (402) is parallel to the axial direction of the extension tube (3), and the direction of the second guide groove (503) is parallel to the axial direction of the second connecting member (5), and further comprises: A first inner sliding block (6), the first inner sliding block (6) being slidably disposed in the first guide groove (402), and a pneumatic cavity (601) being formed between the first inner sliding block (6) and the first guide groove (402); A second inner slider (7), the second inner slider (7) is slidably disposed in the second guide groove (503), the second inner slider (7) being configured to slide into the first guide groove (402) after being driven to slide and rotate by the second connecting member (5), and one end of the second inner slider (7) abuts against an end of the first inner slider (6) away from the air pressure chamber (601).

3. A heat-resistant rubber hose for an engine according to claim 2, characterized in that: Also includes: A first elastic member (8), wherein one end of the first elastic member (8) acts on the second inner sliding block (7), and the other end of the first elastic member (8) acts on the inner wall of the second guide groove (503), providing a force for the second inner sliding block (7) to slide in a direction away from the inner wall of the second guide groove (503).

4. A heat-resistant rubber hose for an engine according to claim 2, characterized in that: Also includes: a third connecting member (9), the third connecting member (9) being in contact with an end of the extension tube (3) away from the first connecting member (102), the third connecting member (9) having a third inner flow channel (901), the first inner flow channel (105), the second inner flow channel (301) and the third inner flow channel (901) being in communication with each other; A locking member (10), wherein the locking member (10) is rotatably disposed on the third connecting member (9), and the locking member (10) is threadedly connected to the outer wall of the second connecting member (5), and when the locking member (10) is rotated, it drives the second connecting member (5) to slide toward an end close to the third connecting member (9).

5. A heat-resistant rubber hose for an engine according to claim 4, characterized in that: The end of the third connecting member (9) away from the extension pipe member (3) has a second inner insert portion (902) and a second outer sleeve portion (903), and the second inner insert portion (902) and the second outer sleeve portion (903) are used to abut against the inner wall and outer wall of the pipe mouth portion (101) of another pipe member (1).

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