Loosening prevention structure for oil pump installation
By designing a limiting component, electromagnets and magnetic blocks are used to limit the loosening of the bolt rod, solving the connection problem of the oil pump caused by vibration, improving the stability of the oil pump, and preventing damage when it is not fully installed.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TENGYUAN OIL PUMP MFG CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-05-05
AI Technical Summary
During use, mechanical vibration can cause the connecting bolts of the oil pump to loosen, affecting its operational stability.
The device employs a limiting assembly, including a ring-shaped outer shell, an electromagnet, a magnetic block, and a spring. The electromagnet attracts the magnetic block, causing the clamping frame to lock the locking ring, thus preventing the bolt rod from loosening. Combined with an indicator light, this alerts the operator to prevent forced twisting.
It effectively reduces the probability of bolts coming loose, improves the stable connection of the oil pump, prevents malfunctions caused by vibration, and the warning light prevents damage caused by forced twisting when not fully installed.
Smart Images

Figure CN224201491U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oil pump technology, specifically relating to an oil pump mounting anti-loosening structure. Background Technology
[0002] The function of the oil pump in the lubrication system: The function of the oil pump is to increase the oil to a certain pressure and force it to be delivered to the moving surfaces of various engine parts. The structure of the oil pump can be divided into two types: gear type and rotor type. The gear type oil pump is further divided into internal gear type and external gear type. Generally, the latter is called gear type oil pump.
[0003] When an oil pump is in use, the mechanical structure will vibrate. Over a long period of use, the vibration may cause the bolts connecting the oil pump to loosen, which may lead to malfunction of the oil pump. Therefore, an anti-loosening structure for oil pump installation is proposed. Summary of the Invention
[0004] This utility model provides an anti-loosening structure for oil pump installation, which aims to solve the problem that when an oil pump is in use, the mechanical structure will vibrate, and during long-term use, the vibration may cause the bolts connecting the oil pump to loosen, which will lead to the failure of the oil pump operation.
[0005] This utility model embodiment provides an anti-loosening structure for an oil pump installation, including a pump body. Several connecting blocks are installed on the side of the pump body. A connecting platform is fixedly connected to the end of each connecting block away from the pump body. A bolt head is movably connected to the connecting platform. A bolt rod is fixedly connected to one side of the bolt head. The end of the bolt rod is threaded. A twist opening is provided on the other side of the bolt head. A limit component is provided on the connecting platform.
[0006] Furthermore, a receiving groove is provided on the front side of the connecting platform, a movable groove is provided behind the receiving groove and a through opening communicating with the movable groove is provided in the connecting platform.
[0007] By adopting the above technical solution, the receiving groove is used to receive the bolt head, and the movable groove is used to allow the locking ring to move.
[0008] Furthermore, the limiting component includes an annular outer shell fixedly connected to the outer wall of the connecting platform and a locking ring disposed on the outside of the bolt rod. The inner wall of the annular outer shell is provided with a plurality of evenly distributed electromagnets. The outer wall of the connecting platform is provided with a plurality of movable grooves. The inner wall of the movable grooves is provided with a plurality of receiving cavities. A movable rod is slidably connected between the receiving cavity and the movable groove. A magnetic block is fixedly connected to one end of the movable rod, and a clamping frame is fixedly connected to the other end of the movable rod. A spring is provided on the movable rod.
[0009] By adopting the above technical solution, when installing the pump body, the electromagnet is energized, generating magnetism that attracts the magnetic block. The magnetic block drives the movable rod to move and stretches the spring. At this time, the clamping frame retracts into the receiving cavity, and the bolt head and the locking ring on the bolt rod can be inserted into the movable groove. The bolt rod passes through the through hole and connects to the assembly surface. After connecting with the assembly surface, the electromagnet is de-energized. At this time, under the reset action of the spring, the clamping frame is driven to lock on the outside of the locking ring. This can restrict the bolt rod, reduce the probability of the bolt rod loosening, and reduce the impact of vibration and accidents on the stable connection of the pump body during long-term use.
[0010] Furthermore, the positions of the magnetic block and the electromagnet correspond to each other.
[0011] By adopting the above technical solution, each magnetic block corresponds to an electromagnet, allowing the magnetic block to move.
[0012] Furthermore, one end of the spring is fixedly connected to the magnetic block, and the other end of the spring is fixedly connected to the wall of the movable groove.
[0013] By adopting the above technical solution, the clamping frame can be reset after moving by utilizing the action of the spring, and an external force can be applied to make the clamping frame lock on the outside of the locking ring for restriction. Applying an external force to clamp the locking ring can restrict the movement of the locking ring and the bolt rod.
[0014] Furthermore, the electromagnet has the opposite magnetism to the magnetic block.
[0015] By adopting the above technical solution, an electromagnet can be energized to attract magnetic blocks, allowing the clamping frame to move.
[0016] Furthermore, a number of reminder lights are installed on the top of the annular shell, and each electromagnet is equipped with a trigger switch, which is electrically connected to the reminder lights.
[0017] By adopting the above technical solution, when the clamping frame moves into place under the action of the magnetic block, the magnetic block will press and trigger the switch to turn on the reminder light to remind the staff, so as to prevent forced twisting before the clamping frame is retracted into the receiving cavity, which would cause damage.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. This utility model uses a clamping frame to hold the bolt rod on the outside of the locking ring, which can restrict the bolt rod, reduce the probability of the bolt rod loosening, and reduce the impact of vibration and accidents on the stable connection of the pump body during long-term use.
[0020] 2. When the clamping frame moves into place under the action of the magnetic block, the magnetic block will trigger a switch to turn on the reminder light to remind the staff, preventing forced twisting before the clamping frame is retracted into the receiving cavity, which could cause damage.
[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description
[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0024] Figure 2 This is a schematic diagram of the structure for removing the bolt head from the connecting platform according to an embodiment of the present invention;
[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting platform according to an embodiment of the present utility model;
[0026] Figure 4 This is a schematic diagram of the bolt head and locking ring structure according to an embodiment of the present utility model;
[0027] Reference numerals: 1. Pump body; 2. Connecting block; 3. Connecting platform; 4. Bolt head; 5. Bolt rod; 6. Thread; 7. Twist joint; 8. Receiving groove; 9. Movable groove; 10. Through opening; 111. Annular outer shell; 112. Electromagnet; 113. Movable groove; 114. Receiving cavity; 115. Movable rod; 116. Spring; 117. Magnetic block; 118. Clamping frame; 119. Locking ring; 12. Trigger switch; 13. Indicator light. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] Reference Figures 1-4This utility model embodiment proposes an anti-loosening structure for an oil pump installation, including a pump body 1. Several connecting blocks 2 are installed on the side of the pump body 1. A connecting platform 3 is fixedly connected to the end of each connecting block 2 away from the pump body 1. A bolt head 4 is movably connected in the connecting platform 3. A bolt rod 5 is fixedly connected to one side of the bolt head 4. The end of the bolt rod 5 is provided with a thread 6. A twist opening 7 is opened on the other side of the bolt head 4. A limit component is provided on the connecting platform 3.
[0030] The front side of the connecting platform 3 is provided with a receiving groove 8, and the rear side of the receiving groove 8 is provided with a movable groove 9 located in the connecting platform 3. The connecting platform 3 is provided with a through opening 10 communicating with the movable groove 9. The receiving groove 8 is used to receive the bolt head 4, and the movable groove 9 is used to allow the locking ring 119 to move.
[0031] The limiting assembly includes an annular housing 111 fixedly connected to the outer wall of the connecting platform 3 and a locking ring 119 disposed on the outside of the bolt rod 5. The inner wall of the annular housing 111 is provided with several evenly distributed electromagnets 112. The outer wall of the connecting platform 3 has several moving grooves 113, and the inner wall of the moving groove 9 has several receiving cavities 114. A movable rod 115 is slidably connected between the receiving cavity 114 and the moving groove 113. A magnet 117 is fixedly connected to one end of the movable rod 115, and a clamping frame 118 is fixedly connected to the other end of the movable rod 115. A spring 116 is disposed on the movable rod 115. When the pump body 1 is installed, the electromagnets 112 are energized. The iron 112 generates magnetism, attracting the magnetic block 117. The magnetic block 117 drives the movable rod 115 to move and stretches the spring 116. At this time, the clamping frame 118 is retracted into the receiving cavity 114. At this time, the bolt head 4 and the locking ring 119 on the bolt rod 5 can be inserted into the movable groove 9, and the bolt rod 5 passes through the through hole 10 and connects to the assembly surface. After connecting with the assembly surface, the electromagnet 112 is de-energized. At this time, under the reset action of the spring 116, the clamping frame 118 is driven to lock on the outside of the locking ring 119. This can restrict the bolt rod 5, reduce the probability of the bolt rod 5 loosening, and reduce the impact of vibration and accidents on the stable connection of the pump body 1 during long-term use.
[0032] The positions of the magnetic block 117 and the electromagnet 112 are corresponding, and each magnetic block 117 corresponds to one electromagnet 112, so that the magnetic block 117 can be moved.
[0033] One end of the spring 116 is fixedly connected to the magnetic block 117, and the other end of the spring 116 is fixedly connected to the groove wall of the moving groove 113. By using the action of the spring 116, the clamping frame 118 can be moved and then reset, and an external force can be applied to make the clamping frame 118 lock on the outside of the locking ring 119 for restriction. An external force is applied to clamp the locking ring 119, thereby restricting the movement of the locking ring 119 and the bolt rod 5.
[0034] The electromagnet 112 has the opposite magnetism to the magnetic block 117. The electromagnet 112 can be energized to attract the magnetic block 117, allowing the clamping frame 118 to move.
[0035] Several reminder lights 13 are installed on the top of the annular outer shell 111. Each electromagnet 112 is equipped with a trigger switch 12. The trigger switch 12 is electrically connected to the reminder light 13. When the clamping frame 118 moves into place under the action of the magnetic block 117, the magnetic block 117 will squeeze the trigger switch 12 to turn on the reminder light 13 to remind the staff and prevent forced twisting when the clamping frame 118 is not retracted into the receiving cavity 114, which would cause damage.
[0036] The specific implementation method is as follows: When installing the pump body 1, the electromagnet 112 is energized, and the electromagnet 112 generates magnetism, attracting the magnetic block 117. The magnetic block 117 drives the movable rod 115 to move and stretches the spring 116. At this time, the clamping frame 118 is retracted into the receiving cavity 114. At this time, the bolt head 4 and the locking ring 119 on the bolt rod 5 can be inserted into the movable groove 9. Then, the bolt head 4 is twisted with the tool and the twisting hole 7 to allow the bolt rod 5 to pass through the through hole 10 and connect with the assembly surface. After connecting with the assembly surface, the electromagnet 112 is de-energized. At this time, under the reset action of the spring 116, the clamping frame 118 is driven to lock on the outside of the locking ring 119. This can restrict the bolt rod 5, reduce the probability of the bolt rod 5 loosening, and reduce the impact of vibration and accidents on the stable connection of the pump body 1 during long-term use.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An anti-loosening structure for an oil pump mounting, comprising a pump body (1), characterized in that, Several connecting blocks (2) are installed on the side of the pump body (1). A connecting platform (3) is fixedly connected to the end of each connecting block (2) away from the pump body (1). A bolt head (4) is movably connected in the connecting platform (3). A bolt rod (5) is fixedly connected to one side of the bolt head (4). A thread (6) is provided at the end of the bolt rod (5). A twist opening (7) is provided on the other side of the bolt head (4). A limit component is provided on the connecting platform (3).
2. The oil pump mounting anti-loosening structure according to claim 1, characterized in that: The front side of the connecting platform (3) is provided with a receiving groove (8), and the rear side of the receiving groove (8) is provided with a movable groove (9) located in the connecting platform (3). The connecting platform (3) is provided with a through opening (10) communicating with the movable groove (9).
3. The oil pump mounting anti-loosening structure according to claim 2, characterized in that: The limiting component includes an annular shell (111) fixedly connected to the outer wall of the connecting platform (3) and a locking ring (119) disposed on the outside of the bolt rod (5). The inner wall of the annular shell (111) is provided with a plurality of evenly distributed electromagnets (112). The outer wall of the connecting platform (3) is provided with a plurality of moving grooves (113). The inner wall of the moving groove (9) is provided with a plurality of receiving cavities (114). A movable rod (115) is slidably connected between the receiving cavity (114) and the moving groove (113). A magnet (117) is fixedly connected to one end of the movable rod (115). A clamping frame (118) is fixedly connected to the other end of the movable rod (115). A spring (116) is provided on the movable rod (115).
4. The oil pump mounting anti-loosening structure according to claim 3, characterized in that: The position of the magnetic block (117) corresponds to that of the electromagnet (112).
5. The oil pump mounting anti-loosening structure according to claim 4, characterized in that: One end of the spring (116) is fixedly connected to the magnetic block (117), and the other end of the spring (116) is fixedly connected to the wall of the moving groove (113).
6. The oil pump mounting anti-loosening structure according to claim 5, characterized in that: The electromagnet (112) has opposite magnetism to the magnetic block (117).
7. The oil pump mounting anti-loosening structure according to claim 6, characterized in that: The top of the annular shell (111) is equipped with several reminder lights (13), and each electromagnet (112) is equipped with a trigger switch (12), which is electrically connected to the reminder lights (13).