Safe oil pump capable of preventing oil pumping

Abstract

The utility model discloses a safe oil pump capable of preventing oil pumping, which comprises a machine body, an oil inlet cavity is arranged on the machine body, an oil inlet pipe is fixedly arranged on the inner wall of the oil inlet cavity, a buffer cavity is arranged on one side of the oil inlet pipe, an oil hole is communicated between the buffer cavity and the oil inlet cavity, a pair of fixing blocks is fixedly arranged in the buffer cavity, and the fixing blocks are fixedly arranged on the machine body. The engine oil pump comprises two fixing blocks and oil holes, the two fixing blocks are arranged in the middle of the engine oil pump, C-shaped grooves are formed in the opposite sides of the two fixing blocks, the two C-shaped grooves are arranged in a splayed shape, the oil holes are located below the C-shaped grooves, and a buffering assembly which is in reciprocating sealing sliding connection from a flaring to a necking is arranged between the C-shaped grooves. The safe oil pump capable of preventing oil pumping is lower in cost and reliable in performance, and meets the requirements of an engine for stable oil pressure and flow.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil pump, especially to a safe oil pump of anti oil channeling. BACKGROUND

[0002] The existing oil pump with safety valve matched with engine is provided with only one safety valve on it to control the safety pressure of the oil pump, which can prevent the rupture of the oil pump, oil passage and filter.

[0003] The Chinese patent with publication number CN216110904U discloses a safe oil pump of anti oil channeling, which comprises a body, an oil inlet cavity is arranged on the body, an oil inlet pipe is fixedly installed on the inner wall of the top of the front side of the oil inlet cavity, the front end of the oil inlet pipe extends to the front side of the body, a buffer cavity is arranged on the right side of the oil inlet cavity on the body, the buffer cavity is communicated with the oil inlet cavity, so that when the oil pressure in the oil inlet cavity is too large, the oil is depressurized in a shunting manner, the moving plate can be elastically supported by the first buffer assembly and the second buffer assembly, the oil can be easily pushed back into the oil inlet cavity, the pressure in the oil inlet cavity can be avoided from being too large, and the oil can be avoided from channeling into the combustion chamber, so the safe oil pump of anti oil channeling has good practicability.

[0004] The above-mentioned patent elastically supports the moving plate by the first buffer assembly and the second buffer assembly, which has a complex structure and high manufacturing cost, and the safe oil pump of anti oil channeling is proposed to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a safe oil pump of anti oil channeling, the design scheme of the oil pump aims to simplify the structure and improve the efficiency, provide a safe oil pump of anti oil channeling with lower cost and reliable performance, and meet the stable demand of engine for oil pressure and flow.

[0006] The above-mentioned technical purpose of the utility model is realized by the following technical scheme: a safe oil pump of anti oil channeling, comprising a body, an oil inlet cavity is arranged on the body, an oil inlet pipe is fixedly installed on the inner wall of the oil inlet cavity, a buffer cavity is arranged on one side of the oil inlet pipe, an oil hole is communicated between the buffer cavity and the oil inlet cavity, a pair of fixed blocks are fixedly arranged on the buffer cavity, a C-shaped groove is formed on one side of each of the two fixed blocks, the two C-shaped grooves are arranged in an eight-shaped mode, the oil hole is located below the C-shaped groove, and a buffer assembly reciprocatingly and sealingly connected by expanding to contracting is arranged between the two C-shaped grooves.

[0007] By adopting the technical scheme, the structure is simple, the manufacturing cost is low, a stable and efficient sliding track is provided for the buffer assembly, when the oil flows from the oil inlet pipe into the buffer cavity through the oil hole, the buffer assembly can reciprocatingly and sealingly slide in the C-shaped groove from the flared end to the narrow end, effectively absorbing the impact force of the oil flow, slowing down the oil flow rate, and preventing oil from moving.

[0008] Further arrangement: the buffer assembly comprises a pair of telescopic blocks, a sliding rod between the pair of telescopic blocks, a compression spring sleeved on the sliding rod, and a moving plate fixedly arranged on the side of each of the pair of telescopic blocks towards the flared end, the two moving plates are sealingly and slidably connected, each of the pair of telescopic blocks comprises a sealing sliding groove at one end facing each other and a circular head at the other end away from each other, the head is sealingly and slidably connected in the corresponding C-shaped groove, and the two ends of the sliding rod are sealingly and slidably arranged in the corresponding sealing sliding groove.

[0009] By adopting the technical scheme, the parts of the buffer assembly work cooperatively to form an efficient and reliable buffer system; when the oil flows into the buffer cavity through the oil hole, the impact force of the oil pushes the moving plate and the telescopic block connected thereto, so that the telescopic block slides in the C-shaped groove from the flared end to the narrow end. In this process, the two telescopic blocks are extruded by the C-shaped groove, so that the two telescopic blocks move towards each other, the compression spring is compressed, the impact energy of the oil flow is absorbed, the oil flow rate is slowed down, and the movement of the oil is effectively prevented. At the same time, the sealing sliding of the sliding rod in the sealing sliding groove ensures the stability and sealing of the buffer assembly, preventing oil leakage; the sealing sliding connection between the two moving plates further enhances the sealing performance of the buffer assembly, ensuring the normal operation of the oil pump.

[0010] Further arrangement: a support block is fixedly arranged in each of the C-shaped grooves, and the support block is located below the head and the bottom of the head is in contact with the top of the support block.

[0011] By adopting the technical scheme, the support of the head is realized by the support block.

[0012] Further arrangement: a sliding sleeve is fixedly arranged at the middle position of the sliding rod, the two telescopic blocks are symmetrically arranged on both sides of the sliding sleeve, a sliding column is fixedly arranged at the top of the inner wall of the buffer cavity, and the sliding sleeve and the sliding column are slidingly arranged.

[0013] By adopting the technical scheme, when the oil pressure pushes the moving plate to move towards the narrow end, the moving plate is uniformly stressed, further enhancing the stability and smoothness of the buffer assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure of this embodiment;

[0015] Figure 2 It is the overall structure of this embodiment Figure 1 The enlarged view at A in the embodiment;

[0016] In the figure: 1, the body; 11, oil inlet cavity; 12, buffer cavity; 14, oil inlet pipe; 13, oil hole; 21, C-shaped groove; 4, telescopic block; 43, slide rod; 7, compression spring; 5, moving plate; 42, sealing sliding groove; 41, head; 15, support block; 32, slide sleeve; 31, slide column; DETAILED DESCRIPTION

[0017] The utility model will be made further detailed description in combination with the drawings.

[0018] Reference Figures 1 to 2 A safety machine oil pump that prevents oil channeling, comprising a body 1, the body 1 is set up with an oil inlet cavity 11, the oil inlet cavity 11 inner wall is fixedly installed with oil inlet pipe 14, the oil inlet cavity 11 right side is set up with a buffer cavity 12, the buffer cavity 12 with the oil inlet cavity 11 between the communication set up with an oil hole 13, the buffer cavity 12 is fixedly set up with a pair of fixed blocks, the two fixed blocks are set up with C-shaped groove 21 on the side of each other, two C-shaped grooves 21 are set up in the shape of an eight-character, oil hole 13 is located below C-shaped groove 21, a pair of C-shaped grooves 21 are set up with the buffer assembly that reciprocating sealing sliding connection is along the flared to the neck.

[0019] The buffer assembly comprises a pair of telescopic blocks 4, a slide rod 43 located between the pair of telescopic blocks 4, a compression spring 7 sleeved on the slide rod 43 and a moving plate 5 fixedly arranged on the side of each other of the pair of telescopic blocks 4, the two moving plates 5 are sealingly and slidably connected, the pair of telescopic blocks 4 comprises a sealing sliding groove 42 on the head of each other and a circular head 41 formed on the head of each other, the head 41 is sealingly and slidably connected in the corresponding C-shaped groove 21, the two ends of the slide rod 43 are sealingly and slidably arranged in the corresponding sealing sliding groove 42, and the two ends of the compression spring 7 are fixedly connected to the corresponding telescopic blocks 4.

[0020] Two C-shaped grooves 21 are fixedly provided with a support block 15, the support block 15 is located below the head 41 and the bottom of the head 41 is in contact with the top of the support block 15, the middle position of the slide rod 43 is fixedly provided with a slide sleeve 32, the two telescopic blocks 4 are symmetrically arranged on the two sides of the slide sleeve 32, the top end of the inner wall of the buffer cavity 12 is fixedly provided with a slide column 31, and the slide sleeve 32 and the slide column 31 are slidably arranged.

[0021] Whole work flow: when the oil pressure of oil cavity 11 is too large, at this time the oil pressure enters the buffer cavity 12 through the oil hole 13, a pair of moving plates 5 bear the oil pressure, a pair of moving plates 5 push two moving plates 5 to slide in the C-shaped groove 21 in the direction of expanding to the narrow opening, two telescopic blocks 4 are extruded by the C-shaped groove 21, so that two telescopic blocks 4 move towards each other, the compressed spring 7 is compressed, absorbs the impact energy of oil flow, slows down the flow rate of oil, effectively prevents the oil from moving; after the oil pressure decreases, the compressed compressed spring 7 gets the restoring force, the restoring force will make two telescopic blocks 4 move away from each other, so that two head parts 41 resist the support block 15, reset, and work next time.

[0022] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the utility model and are protected by the patent law.

Claims

1. A safety oil pump for preventing oil leakage, comprising a body (1), wherein the body (1) is provided with an oil inlet chamber (11), an oil inlet pipe (14) is fixedly installed on the inner wall of the oil inlet chamber (11), a buffer chamber (12) is provided on one side of the oil inlet chamber (11), and an oil hole (13) communicates between the buffer chamber (12) and the oil inlet chamber (11), characterized in that: The buffer cavity (12) is fixedly provided with a pair of fixed blocks (2), the opposite sides of the two fixed blocks (2) are both provided with C-shaped grooves (21), the two C-shaped grooves (21) are arranged in an eight-shaped mode, the oil hole (13) is located below the C-shaped groove (21), and a buffer assembly reciprocatingly and sealingly connected is arranged between the pair of C-shaped grooves (21).

2. The oil channeling safe mechanical oil pump according to claim 1, characterized in that: The buffer assembly comprises a pair of telescopic blocks (4), a slide rod (43) located between the pair of telescopic blocks (4), a compression spring (7) sleeved on the slide rod (43), and a moving plate (5) fixedly arranged on the side of the pair of telescopic blocks (4) facing the flared end, the two moving plates (5) are sealingly and slidably connected, the pair of telescopic blocks (4) comprise a sealing sliding groove (42) formed at the opposite head and a circular head (41) formed at the opposite head, the head (41) is sealingly and slidably connected in the corresponding C-shaped groove (21), the two ends of the slide rod (43) are sealingly and slidably arranged in the corresponding sealing sliding groove (42), and the two ends of the compression spring (7) are fixedly connected to the corresponding telescopic blocks (4).

3. The oil channeling safe oil pump according to claim 1, characterized in that: The two C-shaped grooves (21) are both fixedly provided with supporting blocks (15), the supporting blocks (15) are located below the head (41) and the bottom of the head (41) is in contact with the top of the supporting block (15).

4. The oil channeling safety pump according to claim 2, wherein: The middle part of the slide rod (43) is fixedly provided with a slide sleeve (32), the two telescopic blocks (4) are symmetrically arranged on the two sides of the slide sleeve (32), the top end of the inner wall of the buffer cavity (12) is fixedly provided with a slide column (31), and the slide sleeve (32) and the slide column (31) are slidingly arranged.

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