Novel low-cost light-weight oil delivery pump

Abstract

The utility model discloses a novel low-cost light-weight oil delivery pump, which belongs to the field of oil delivery pumps and comprises an oil delivery pump body, a delivery joint is arranged on the side surface of the oil delivery pump body, a transfer joint is mounted at the top of the oil delivery pump body, a mounting end plate is arranged at the end part of the oil delivery pump body, and an ejector rod sleeve component is arranged at the end part of the oil delivery pump body. The oil delivery pump body is provided with the ejector rod sleeve connecting hole, the ejector rod sleeve main body in the ejector rod sleeve assembly is provided with the assembling external thread, a threaded connection mode is used in cooperation with sealant, a sealing ring and a spacer sleeve do not need to be installed after the ejector rod sleeve is installed, the installation process is simplified, meanwhile, threaded connection is not prone to loosening, and the service life of the oil delivery pump is prolonged. Normal operation of oil conveying work is guaranteed, after a spacer sleeve and a sealing ring are not used, the use cost is reduced, due to the fact that the threaded connection matching area is large, the connection sealing performance of the ejector rod sleeve and the oil conveying pump body after installation can be guaranteed, the oil leakage situation is avoided, and the use effect of the whole conveying pump is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil transfer pump field, especially in low cost light weight novel oil transfer pump. BACKGROUND

[0002] Oil transfer pump is one of the key equipment in diesel engine fuel supply system, and its main function is to draw diesel from the oil tank and deliver to the oil injection pump to ensure the engine can be ignited and run normally. The commonly used oil transfer pump is generally piston type oil transfer pump, which mainly relies on the eccentric wheel on the camshaft to drive the piston to move back and forth to complete the process of oil absorption and pumping.

[0003] The existing oil transfer pump is made of light alloy or metal, which reduces the overall weight of the oil transfer pump and improves the convenience of use. However, in the existing light weight oil transfer pump, in order to ensure the stable operation of the ejector rod, the ejector rod sleeve needs to be installed in the pump body, and after the installation of the ejector rod sleeve, the sealing ring and the sleeve need to be set at the end to ensure the sealing performance of the installed ejector rod sleeve and prevent oil leakage. The overall installation of such oil transfer pump is extremely complex, the worn sealing ring and sleeve need to be replaced regularly, the use cost is high, and the ejector rod sleeve is limited and fixed by the sleeve. When the sleeve is worn, the use of the ejector rod sleeve is no longer fixed, which affects the stability of the ejector rod and the general use effect. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a low cost light weight novel oil transfer pump, which can effectively solve the problems in the background art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A low cost light weight novel oil transfer pump, comprising an oil transfer pump body, a conveying joint is arranged on the side surface of the oil transfer pump body, a transfer joint is installed on the top of the oil transfer pump body, an installation end plate is arranged at the end of the oil transfer pump body, and an ejector rod sleeve assembly is arranged at the end of the oil transfer pump body.

[0007] Preferably, the conveying joint, the transfer joint and the oil transfer pump body are in communication, and a fixing hole is arranged on the installation end plate.

[0008] Preferably, the position where the installation end plate is arranged on the oil transfer pump body is provided with an ejector rod sleeve connecting hole, and the ejector rod sleeve assembly is screw connected in the ejector rod sleeve connecting hole on the oil transfer pump body.

[0009] Preferably, an ejector rod is arranged in the ejector rod sleeve assembly, and a roller body is installed at the end of the ejector rod sleeve assembly.

[0010] Preferably, the ejector rod sleeve assembly comprises an ejector rod sleeve body, a guide limiting sleeve, an assembly external thread, a roller body mounting groove and a connecting through hole, the ejector rod sleeve body is fixedly connected with the guide limiting sleeve, and the ejector rod sleeve body and the guide limiting sleeve are provided with an ejector rod mounting hole penetrating therethrough, the assembly external thread is arranged on the ejector rod sleeve body, and the ejector rod sleeve body is installed in an ejector rod sleeve connecting hole on the oil delivery pump body through the assembly external thread.

[0011] Preferably, the roller body mounting groove is arranged at an end of the ejector rod sleeve body, and the connecting through hole is arranged at the end of the ejector rod sleeve body and communicates with the roller body mounting groove.

[0012] Compared with the prior art, the low-cost lightweight novel oil delivery pump has the beneficial effects that the ejector rod sleeve connecting hole is arranged on the oil delivery pump body, the assembly external thread is arranged on the ejector rod sleeve body in the ejector rod sleeve assembly, the threaded connection is used in cooperation with the sealing glue, the installation of the sealing ring and the blocking sleeve after the installation of the ejector rod sleeve is not needed, the installation process is simplified, the threaded connection cannot be easily loosened, the normal operation of the oil delivery work is ensured, the use cost is reduced after the blocking sleeve and the sealing ring are not used, the threaded connection cooperation area is large, the connection sealing property of the ejector rod sleeve after the installation of the ejector rod sleeve and the oil delivery pump body can be ensured, the oil leakage is not caused, and the use effect of the entire delivery pump is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a whole structure schematic view of the utility model;

[0014] Fig. 2 It is a structure schematic view of the pump body of the utility model;

[0015] Fig. 3 It is a structure schematic view of the ejector rod sleeve assembly of the utility model.

[0016] In the drawing: 1, oil delivery pump body; 2, delivery joint; 3, transfer joint; 4, installation end plate; 5, ejector rod sleeve assembly; 501, ejector rod sleeve body; 502, guide limiting sleeve; 503, assembly external thread; 504, roller body mounting groove; 505, connecting through hole; 6, ejector rod sleeve connecting hole. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0018] For example, Figs. 1-3As shown, a low-cost lightweight new oil pump, including the oil pump body 1, the side of the oil pump body 1 is provided with a delivery joint 2, and the top of the oil pump body 1 is provided with a transfer joint 3, the end of the oil pump body 1 is provided with an installation end plate 4, and the end of the oil pump body 1 is provided with a top rod sleeve assembly 5. The delivery joint 2, the transfer joint 3 and the oil pump body 1 are communicated, and the installation end plate 4 is provided with a fixing hole. The position of the installation end plate 4 on the oil pump body 1 is provided with a top rod sleeve connecting hole 6, and the top rod sleeve assembly 5 is screwed into the top rod sleeve connecting hole 6 on the oil pump body 1. The inside of the top rod sleeve assembly 5 is provided with a top rod, and the end of the top rod sleeve assembly 5 is provided with a roller body.

[0019] In the assembly of the lightweight oil pump, the top rod sleeve connecting hole 6 on the oil pump body 1 is coated with sealant, the top rod sleeve assembly 5 is installed into the top rod sleeve connecting hole 6 on the oil pump body 1, and the top rod sleeve assembly 5 is screwed into the top rod sleeve connecting hole 6 on the oil pump body 1. Then the top rod is installed through the top rod sleeve assembly 5, the end of the top rod is located in the oil pump body 1, the roller body assembly is installed at the end of the top rod sleeve assembly 5, and then the piston, spring and plug are installed at the tail end of the oil pump body 1, wherein the piston and spring are arranged inside the oil pump body 1, the piston is fixedly connected with the top rod, the plug is fixedly arranged outside the tail end of the oil pump body 1, and the plug is in contact with both ends of the spring. When the entire oil pump is assembled, the installation of the oil pump is fixed by screwing through the fixing hole on the installation end plate 4, the pipeline is connected by the delivery joint 2, the hand pump body is installed by the transfer joint 3, and finally the oil pump can be used.

[0020] The top rod sleeve assembly 5 is screwed into the oil pump body 1 for installation, which facilitates quick installation and disassembly and is high in operation convenience. The plug is also installed in the tail end of the oil pump body 1 by screwing, which ensures sealing and enables quick disassembly and replacement of the top rod, piston, spring and other structures for convenient and fast maintenance.

[0021] Through the above embodiment, the top rod sleeve assembly 5 includes a top rod sleeve main body 501, a guide limiting sleeve 502, an assembly external thread 503, a roller body mounting groove 504 and a connecting through hole 505, the top rod sleeve main body 501 is fixedly connected with the guide limiting sleeve 502, top rod mounting holes are formed through the top rod sleeve main body 501 and the guide limiting sleeve 502, the assembly external thread 503 is arranged on the top rod sleeve main body 501, and the top rod sleeve main body 501 is installed in the top rod sleeve connecting hole 6 on the oil pump body 1 through the assembly external thread 503. The roller body mounting groove 504 is arranged at the end of the top rod sleeve main body 501, and the connecting through hole 505 is arranged at the end of the top rod sleeve main body 501 and communicates with the roller body mounting groove 504.

[0022] When installing the ejector sleeve body 5, after applying sealant in the ejector sleeve connecting hole 6, the one end of the ejector sleeve body 501 is installed into the ejector sleeve connecting hole 6 on the oil delivery pump body 1 by using the assembly external thread 503, so that the ejector sleeve assembly 5 is threadedly connected with the oil delivery pump body 1, has a large matching area, can guarantee the sealing performance during subsequent oil delivery, and avoids leakage.

[0023] During use of the oil delivery pump, the driving mechanism rotates with the roller body, different parts of the roller body contact the ejector rod and apply force to the ejector rod, the ejector rod reciprocates in the ejector sleeve assembly 5 in cooperation with the spring, thereby completing the oil suction and pumping process. During movement of the ejector rod, in addition to the piston serving as a fixed support, the guide limiting sleeve 502 also serves as an auxiliary support for the ejector rod, thereby guaranteeing stable operation of the ejector rod. During use of the oil delivery pump, since the oil delivery pump body 1 and the ejector sleeve assembly 5 are installed in a threaded connection manner, have a large matching area after installation, and are provided with sealant, the sealing performance of the ejector sleeve assembly 5 and the oil delivery pump body 1 is guaranteed, and oil leakage does not occur. When needed, the ejector sleeve assembly 5 can be quickly and rotatably disassembled for replacement operation, which is convenient and fast to operate and has low use cost.

[0024] It should be noted that the ejector sleeve connecting hole 6 is formed on the oil delivery pump body 1, the assembly external thread 503 is arranged on the ejector sleeve body 501 of the ejector sleeve assembly 5, the threaded connection manner is used in cooperation with the sealant, no sealing ring and blocking sleeve need to be installed after installation of the ejector sleeve, the installation process is simplified, the threaded connection does not easily loosen, the normal oil delivery work is guaranteed, the use cost is reduced after the blocking sleeve and the sealing ring are not used, since the threaded connection has a large matching area, the connection sealing performance of the ejector sleeve after installation and the oil delivery pump body 1 is guaranteed, oil leakage does not occur, and the use effect of the entire oil delivery pump is guaranteed.

[0025] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel low-cost, lightweight oil pump, characterized in that: It includes an oil pump body (1), a conveying joint (2) is provided on the side of the oil pump body (1), and a transfer joint (3) is installed on the top of the oil pump body (1). An installation end plate (4) is provided at the end of the oil pump body (1), and a top rod sleeve assembly (5) is provided at the end of the oil pump body (1).

2. The novel low-cost, lightweight oil pump according to claim 1, characterized in that: The delivery connector (2) and transfer connector (3) are connected to the oil pump body (1), and the mounting end plate (4) is provided with fixing holes.

3. The novel low-cost, lightweight oil pump according to claim 2, characterized in that: The oil pump body (1) is provided with a top rod sleeve connection hole (6) at the position where the mounting end plate (4) is located, and the top rod sleeve assembly (5) is threadedly connected to the top rod sleeve connection hole (6) on the oil pump body (1).

4. The novel low-cost, lightweight oil pump according to claim 3, characterized in that: The top rod sleeve assembly (5) has a top rod inside, and a roller is installed at the end of the top rod sleeve assembly (5).

5. A novel low-cost, lightweight oil pump according to claim 4, characterized in that: The top rod sleeve assembly (5) includes a top rod sleeve body (501), a guide limiting sleeve (502), an assembly external thread (503), a roller body mounting groove (504), and a connecting through hole (505). The top rod sleeve body (501) is fixedly connected to the guide limiting sleeve (502), and a top rod mounting hole is provided through the top rod body (501) and the guide limiting sleeve (502). The assembly external thread (503) is provided on the top rod sleeve body (501), and the top rod sleeve body (501) is installed in the top rod sleeve connecting hole (6) on the oil pump body (1) through the assembly external thread (503).

6. A novel low-cost, lightweight oil pump according to claim 5, characterized in that: The roller mounting groove (504) is located at the end of the top rod sleeve body (501), and the connecting through hole (505) is installed at the end of the top rod sleeve body (501), and the connecting through hole (505) is connected to the roller mounting groove (504).

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