An electromagnetic oil pump external mounting hole fixing structure

Abstract

The utility model relates to mounting hole position fixing technical field, especially an electromagnetic oil pump external mounting hole position fixing structure. The utility model provides such an electromagnetic oil pump external mounting hole position fixing structure, including electromagnetic pump, mounting frame, mounting plate, support seat, installation cylinder and clamping rod etc., the mounting plate constitutes the main body support structure of electromagnetic pump, its top fixedly connected with mounting frame is symmetrical, and the electromagnetic pump is fixedly installed between two mounting frames, and the mounting plate is detachably installed on the support seat, and the both sides of support seat top are connected with installation cylinder and are symmetrical, and the mounting plate is provided with the through hole that is compatible with installation cylinder position and size. Through the cooperation of installation cylinder and clamping rod, first spring, when the mounting plate is pressed down, the clamping rod can be automatically clamped into the clamping groove, the instantaneous pre-fixing of the electromagnetic pump assembly is realized, the structure eliminates the step that needs manual alignment and maintains position during installation, and the initial installation efficiency is improved significantly, which creates a convenient condition for subsequent final fastening.

Description

Technical Field

[0001] This utility model relates to the field of mounting hole fixing technology, and in particular to an external mounting hole fixing structure for an electromagnetic oil pump. Background Technology

[0002] In the lubrication and hydraulic systems of engines and various industrial equipment, electromagnetic oil pumps are key actuators. Their ease of installation and reliability directly affect the maintenance efficiency and operational safety of the equipment. Currently, electromagnetic oil pumps are typically fixed to the mounting base using bolts via brackets.

[0003] This traditional method has significant drawbacks: First, during installation, manual alignment of the pump body mounting holes with the base threaded holes is required, while simultaneously overcoming the weight of the pump body and maintaining alignment. This operation is cumbersome and labor-intensive, especially in space-constrained installation environments, significantly impacting maintenance efficiency. Second, continuous vibration during equipment operation can easily cause traditional bolt connections to loosen, posing a safety hazard. Although anti-loosening measures such as applying spring washers or thread-locking agents can be used, the former has limited effectiveness, while the latter hinders subsequent disassembly and maintenance, and both increase assembly complexity and parts management costs. Utility Model Content

[0004] In order to overcome the shortcomings mentioned in the background art, this utility model provides an external mounting hole fixing structure for an electromagnetic oil pump.

[0005] The technical implementation scheme of this utility model is as follows: an external mounting hole fixing structure for an electromagnetic oil pump, including an electromagnetic pump, a mounting frame, a mounting plate, a support base, a mounting cylinder, a locking rod, a first spring, a threaded sleeve, a support block, and a rotating block. The mounting plate constitutes the main support structure of the electromagnetic pump, and mounting frames are symmetrically fixedly connected to its top. The electromagnetic pump is fixedly installed between two mounting frames. The mounting plate is detachably installed on the support base. Mounting cylinders are symmetrically connected to both sides of the top of the support base. Through holes adapted to the position and size of the mounting cylinders are opened on the mounting plate. Locking rods are slidably connected to the positions corresponding to the through holes inside the mounting plate. A first spring is connected between each locking rod and the inner wall of the mounting plate. A locking groove is provided on the outer wall of the mounting cylinder corresponding to the locking rod position, and the two form a locking fit relationship. The inner wall of the mounting cylinder is provided with an internal thread, and the outer wall of the threaded sleeve is provided with an external thread that matches it. The threaded sleeve is fixedly fixed inside the mounting cylinder by a threaded connection. A support block is fixedly connected to the top of the threaded sleeve, and a rotating block is slidably connected to the top of the support block.

[0006] More preferably, the outer side wall of the rotating block is provided with a groove along the circumference.

[0007] More preferably, the mating surfaces of the end of the clamping rod and the groove on the outer wall of the mounting cylinder are mutually compatible arc surfaces.

[0008] More preferably, it also includes a mating block and a limiting block. The mating block is fixedly connected to the middle of the mounting plate, and the limiting block that mates with it is fixedly connected to the middle of the support base. Both have a V-shaped cross-section.

[0009] More preferably, the V-shaped guide surfaces of the mating block and the limiting block are coated with a layer of wear-resistant material with a low coefficient of friction.

[0010] More preferably, it also includes a second spring and a sliding rod. The sliding rod is vertically slidably connected inside the threaded sleeve, and its top end is connected to the bottom end of the rotating block. The support block has a cavity inside, which accommodates the second spring. The two ends of the second spring are respectively connected to the bottom of the rotating block and the bottom surface of the support block. A fixing groove matching the shape of the bottom end of the sliding rod is also opened in the support seat at the bottom of the mounting cylinder cavity.

[0011] Compared with the prior art, the present invention has the following advantages: 1. With the cooperation of the mounting cylinder, the clamping rod, and the first spring, the clamping rod can automatically engage with the slot when the mounting plate is pressed down, thereby achieving instantaneous pre-fixation of the electromagnetic pump assembly. This structure eliminates the need for manual alignment and position maintenance during installation, significantly improving the initial installation efficiency and creating convenient conditions for subsequent final fastening.

[0012] 2. The fastening method of screwing the threaded sleeve into the mounting cylinder can effectively press the mounting plate with the support block at the top to form a rigid connection with good vibration resistance. Combined with the design of the sliding rod being inserted into the fixing groove under the action of the second spring, it can structurally restrict the reverse rotation of the threaded sleeve and prevent it from loosening in the long-term vibration environment, thus ensuring the long-term stability of the connection.

[0013] 3. By setting the V-shaped mating block and limiting block at the center of the mounting plate and the support base, the mounting plate and the support base can be automatically guided to be accurately aligned during the installation process, ensuring that each mounting cylinder can pass smoothly through the through hole. This design reduces the difficulty of alignment, avoids assembly stress or component damage caused by misalignment during the installation process, and ensures the repeatability of positioning accuracy after disassembly and assembly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the mounting frame, mounting plate, and support base of this utility model.

[0016] Figure 3 This is a cross-sectional view of the mounting plate and support base components of this utility model.

[0017] Figure 4 This is a cross-sectional view of the mounting cylinder, threaded sleeve, and support block components of this utility model.

[0018] The meanings of the reference numerals in the figure are as follows: 1. Electromagnetic pump, 2. Mounting bracket, 3. Mounting plate, 4. Support base, 5. Mating block, 6. Limiting block, 7. Mounting cylinder, 8. Locking rod, 9. First spring, 10. Threaded sleeve, 11. Support block, 12. Rotating block, 13. Second spring, 14. Sliding rod. Detailed Implementation

[0019] Example: An external mounting hole fixing structure for an electromagnetic oil pump, such as... Figures 1-4As shown, the device includes an electromagnetic pump 1, a mounting bracket 2, a mounting plate 3, a support base 4, a mating block 5, a limiting block 6, a mounting cylinder 7, a locking rod 8, a first spring 9, a threaded sleeve 10, a support block 11, and a rotating block 12. The mounting plate 3 forms the main support structure of the electromagnetic pump 1. The mounting bracket 2 is symmetrically connected to its top with screws at the front and rear. The electromagnetic pump 1 is fixedly installed between the two mounting brackets 2. The support base 4 is used to pre-fix the device or machine body to a designated installation position. The mounting plate 3 is detachably installed on the support base 4. Mounting cylinders 7 are symmetrically embedded on both the front and rear sides of the top of the support base 4. The mounting plate 3 has openings for the mounting cylinders 7 to be positioned and sized. The mounting plate 3 has through holes of appropriate size, forming a sliding fit. A locking rod 8 is slidably connected to each through hole inside the mounting plate 3. A first spring 9 connects each locking rod 8 to the inner wall of the mounting plate 3. A groove is provided on the outer wall of the mounting cylinder 7 corresponding to the locking rod 8. When the mounting plate 3 moves vertically downwards, causing the through holes to fit over the outside of the mounting cylinder 7 and adhere to the top surface of the support base 4, the locking rod 8 will be engaged in the groove under the action of the first spring 9, achieving pre-positioning of the mounting plate 3. The mating surfaces of the ends of the locking rods 8 and the grooves on the outer wall of the mounting cylinder 7 are mutually compatible arc surfaces, which can guide the locking rods 8 more smoothly when the mounting plate 3 is pressed down. To reduce collisions and wear, the inner wall of the mounting cylinder 7 is provided with internal threads, and the outer wall of the threaded sleeve 10 is provided with external threads that mate with it. The threaded sleeve 10 is detachably fixed inside the mounting cylinder 7 via a threaded connection. A support block 11 is fixedly connected to the top of the threaded sleeve 10. The outer diameter of the support block 11 is larger than the outer diameter of the mounting cylinder 7. After the threaded sleeve 10 is screwed into the mounting cylinder 7, the support block 11 presses against the surface of the mounting plate 3, enhancing the fixing stability of the mounting plate 3. A rotating block 12 is slidably connected to the top of the support block 11 to assist in tightening the threaded sleeve 10. The outer wall of the rotating block 12 has a groove along the circumference for easy manual tightening, increasing the convenience of operation. The mounting plate 3 has a mating block 5 bolted to its center, and the support base 4 has a limiting block 6 bolted to its center. Both have a V-shaped cross-section. During the installation process of the mounting plate 3, the mating block 5 and the limiting block 6 gradually fit together, achieving guidance and centering of the mounting plate 3, ensuring accurate alignment between the through hole and the mounting cylinder 7, improving assembly efficiency and positional accuracy. The V-shaped guide surfaces of the mating block 5 and the limiting block 6 are coated with a layer of wear-resistant material with a low coefficient of friction, which can significantly reduce the frictional resistance and wear of the mating block 5 and the limiting block 6 during the guiding contact process, ensuring the long-term effectiveness of the guiding and centering function, and making the installation operation more effortless and smooth.

[0020] like Figures 3-4As shown, it also includes a second spring 13 and a sliding rod 14. The sliding rod 14 is vertically slidably connected inside the threaded sleeve 10, and its top end is welded and fixed to the bottom end of the rotating block 12. The support block 11 has a cavity inside, which accommodates the second spring 13. The two ends of the second spring 13 are respectively connected to the bottom of the rotating block 12 and the inner bottom surface of the support block 11. The support seat 4 is also provided with a fixing groove at the bottom of the mounting cylinder 7, which matches the shape of the bottom end of the sliding rod 14. When the threaded sleeve 10 is screwed into the mounting cylinder 7, the sliding rod 14 is locked into the fixing groove under the action of the second spring 13, thereby restricting the circumferential rotation of the threaded sleeve 10 and preventing it from loosening in a vibration environment.

[0021] When installing the electromagnetic pump 1, firstly, fix the electromagnetic pump 1 in the predetermined position of the mounting bracket 2, and pre-fix the support base 4 to the target installation point. Then, press the mounting plate 3 down from top to bottom, aligning it with the support base 4. At this time, the mating block 5 and the limiting block 6 act as guides and centers, so that the through hole on the mounting plate 3 is smoothly aligned with the mounting cylinder 7. The locking rod 8 retracts under the pressure of the outer wall of the mounting cylinder 7 and is inserted after aligning with the slot, thus achieving the initial fixation of the mounting plate 3. Then, screw the threaded sleeve 10 assembly into the mounting cylinder 7. During this process, the bottom end of the sliding rod 14 gradually approaches the fixing groove and is finally inserted into the groove under the action of the second spring 13. At this time, the support block 11 presses the mounting plate 3, completing the reliable installation of the electromagnetic pump 1. During disassembly, first lift the rotating block 12 upwards, causing the sliding rod 14 to disengage from the fixed groove, thus releasing the restriction on the rotation of the threaded sleeve 10. The second spring 13 is then compressed. Then, rotate the rotating block 12 in the opposite direction to unscrew the threaded sleeve 10 from the mounting cylinder 7. After releasing the rotating block 12, the second spring 13 will drive the sliding rod 14 to move downwards and reset. Then, apply a certain external force to the mounting plate 3 to press the locking rod 8 out of the locking groove, thereby separating the mounting plate 3 from the support base 4 and realizing the convenient disassembly of the electromagnetic pump 1.

Claims

1. A structure for fixing external mounting holes of an electromagnetic oil pump, characterized in that: The system includes an electromagnetic pump (1), a mounting bracket (2), a mounting plate (3), a support base (4), a mounting cylinder (7), a locking rod (8), a first spring (9), a threaded sleeve (10), a support block (11), and a rotating block (12). The mounting plate (3) forms the main support structure of the electromagnetic pump (1), and the mounting bracket (2) is symmetrically fixedly connected to its top. The electromagnetic pump (1) is fixedly installed between the two mounting brackets (2). The mounting plate (3) is detachably installed on the support base (4). The mounting cylinders (7) are symmetrically connected to both sides of the top of the support base (4). The mounting plate (3) has openings for the mounting cylinders (7) at their positions and dimensions. The mounting plate (3) has through holes of the same size and is slidably connected to each through hole at the corresponding position. Each clamp rod (8) is connected to the inner wall of the mounting plate (3) by a first spring (9). The outer wall of the mounting cylinder (7) is provided with a groove corresponding to the clamp rod (8), and the two form a clamping relationship. The inner wall of the mounting cylinder (7) is provided with an internal thread, and the outer wall of the threaded sleeve (10) is provided with an external thread that matches it. The threaded sleeve (10) is fixed inside the mounting cylinder (7) by a threaded connection. The top of the threaded sleeve (10) is fixedly connected to a support block (11), and the top of the support block (11) is slidably connected to a rotating block (12).

2. The external mounting hole fixing structure for an electromagnetic oil pump according to claim 1, characterized in that: The outer side wall of the rotating block (12) has a groove along the circumference.

3. The external mounting hole fixing structure for an electromagnetic oil pump according to claim 2, characterized in that: The mating surfaces of the end of the clamp rod (8) and the groove on the outer wall of the mounting cylinder (7) are mutually compatible arc surfaces.

4. The external mounting hole fixing structure for an electromagnetic oil pump according to claim 3, characterized in that: It also includes a mating block (5) and a limiting block (6). The mating block (5) is fixedly connected to the middle of the mounting plate (3), and the limiting block (6) that mates with it is fixedly connected to the middle of the support base (4). Both have a V-shaped cross section.

5. The external mounting hole fixing structure for an electromagnetic oil pump according to claim 4, characterized in that: A layer of wear-resistant material with a low coefficient of friction is attached to the V-shaped guide surface of the mating block (5) and the limiting block (6).

6. The external mounting hole fixing structure for an electromagnetic oil pump according to claim 5, characterized in that: It also includes a second spring (13) and a sliding rod (14). The sliding rod (14) is vertically slidably connected inside the threaded sleeve (10), and its top end is connected to the bottom end of the rotating block (12). The support block (11) has a cavity inside, which contains the second spring (13). The two ends of the second spring (13) are respectively connected to the bottom of the rotating block (12) and the bottom surface of the support block (11). The support seat (4) is also provided with a fixing groove that matches the shape of the bottom end of the sliding rod (14) at the bottom of the mounting cylinder (7).

Images