A manually occluding device

Abstract

The utility model discloses a manual plugging device, its characterized in that: the manual plugging device includes L -shaped base and core, L -shaped base includes the first part and the second part of perpendicular state, the first part of L -shaped base one side of the second part is connected to the one side of bottom plate, the other side of bottom plate connects movable block one side, the other side of sliding block connects locating block, the first part of core one end in proper order penetrates locating block, movable block, bottom plate and L -shaped base and then is connected eccentric shaft handle through pin shaft, and eccentric shaft handle controls core axial movement, the other end of core is sleeved with nut, and the gap existing between nut and locating block, and the gap and core form the compression groove for compressing O -ring seal, the utility model solves how to design a convenient operation, and the technical problem of reliable sealing manual plugging device in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical sealing equipment, and in particular to a manual sealing device. Background Technology

[0002] In the production, testing or maintenance of components involving 350Mpa specifications (such as injector seats or other perforated oil pipes), it is often necessary to temporarily or permanently seal their interfaces to prevent media leakage, impurities from entering, etc.

[0003] Existing sealing methods are either complex to operate, requiring the use of multiple tools, or have poor sealing performance, making it difficult to meet the requirements of the working conditions and causing many inconveniences to the operation.

[0004] Therefore, designing a manual sealing device that is easy to operate and has reliable sealing capabilities has become a technical problem that needs to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a manual sealing device that solves the technical problem of how to design a manual sealing device that is easy to operate and has reliable sealing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a manual sealing device, characterized in that: the manual sealing device includes an L-shaped base and a core; the L-shaped base includes a first part and a second part in a vertical state; one side of the first part of the L-shaped base facing the second part is connected to one side of the base plate; the other side of the base plate is connected to one side of the movable block; the other side of the sliding block is connected to the positioning block; one end of the core passes through the positioning block, the movable block, the base plate and the first part of the L-shaped base in sequence and is connected to an eccentric shaft handle by a pin; the eccentric shaft handle controls the axial movement of the core.

[0007] The other end of the core is fitted with a nut, and there is a gap between the nut and the positioning block. The gap and the core form a compression groove for compressing the O-ring seal.

[0008] Furthermore, one end of the core corresponds to the first shaft segment of the core, and the other end of the core corresponds to the second shaft segment of the core, with the diameter of the first shaft segment being larger than the diameter of the second shaft segment;

[0009] The movable block has a first groove on the side facing the base plate. The bottom of the first groove has a first shaft hole for the second shaft segment in the core to pass through. The end face of the first shaft segment facing the second shaft segment corresponds to the bottom of the first groove.

[0010] Furthermore, the positioning block has an axial extension section that wraps around the core on the side facing the nut, and the axial extension section matches the inner diameter of the sealing hole.

[0011] Furthermore, the first shaft section of the core is provided with a ring of protrusions, which are located within the first groove;

[0012] The base plate has a second groove on the side facing the movable block, and an elastic part is provided in the second groove. The elastic part abuts against or connects with the protrusion.

[0013] Furthermore, the elastic part is a spring; the O-ring is an annular fluororubber gasket.

[0014] Furthermore, the outer side of the movable block is provided with several planar areas.

[0015] Furthermore, the second part of the L-shaped base serves as a fixing plate, with a first step portion on the top of the fixing plate for limiting the movable block and a second step portion for limiting the positioning block.

[0016] Furthermore, the outer surface of the nut is divided into a third shaft section and a fourth shaft section. The third shaft section is close to the compression groove, and the diameter of the third shaft section is larger than that of the fourth shaft section. The diameter of the third shaft section matches the inner diameter of the sealing hole.

[0017] The second axial hole of the nut is fitted onto the other end of the core.

[0018] Furthermore, the eccentric shaft handle is provided with a pin hole for installing a pin. The cross-section of the pin hole is circular, and the cross-section of the end of the eccentric shaft handle where the pin hole is located is circular. The distances from the center of the pin hole to the two sides of the end of the eccentric shaft handle are L1 and L2, respectively, and the difference between the distances of L1 and L2 is not less than 1.5mm.

[0019] Furthermore, the eccentric shaft handle is equipped with anti-slip texture.

[0020] In view of the above technical features, the present invention has the following beneficial effects:

[0021] 1. This utility model provides a manual sealing device that controls the axial movement of the core with the nut by controlling the eccentric shaft handle. The compression groove controls the compression and relaxation of the O-ring seal, so that the O-ring seal in a compressed state can seal the sealing hole. The operation is convenient and the sealing performance is more reliable.

[0022] 2. The present invention provides a manual sealing device with an elastic element. During the process of the eccentric shaft handle pushing the core to reset (i.e., the position of the core when the O-ring is not compressed), the elastic element further increases the pushing force for the core to reset, helping the core to reset quickly and improving the work efficiency of the sealing process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a manual sealing device in specific embodiment 1. Figure 1 (3D view angle).

[0024] Figure 2This is a cross-sectional view of a manual sealing device in specific embodiment 1.

[0025] Figure 3 This is a schematic diagram of the structure of a manual sealing device in specific embodiment 1. Figure 1 (3D view, including the injector housing with sealing holes).

[0026] Figure 4 It is the injector seat with a sealing hole in specific embodiment 1.

[0027] Figure 5 This is a schematic diagram of the eccentric shaft handle in specific embodiment 1.

[0028] Figure 6 This is a schematic diagram of the structure of a manual sealing device in specific embodiment 2. Figure 2 (Front view angle).

[0029] Figure 7 yes Figure 6 Sectional view of AA.

[0030] In the diagram: 1. L-shaped base; 1-1. First part; 1-2. Second part; 1-3. Positioning hole; 1-4. Mounting hole; 1-5. First step; 1-6. Second step;

[0031] 2. Base plate; 2-1. Second groove;

[0032] 3. Movable block; 3-1. First groove; 3-2. First shaft hole; 3-3. Planar area;

[0033] 4. Positioning block; 4-1. Axial extension section;

[0034] 5. O-ring seal;

[0035] 6. Nut; 6-1. Third shaft section; 6-2. Fourth shaft section; 6-3. Second shaft hole;

[0036] 7. Core; 7-1. First shaft section; 7-2. Second shaft section; 7-3. Protrusion;

[0037] 8. Eccentric shaft handle; 8-1. Pin hole; 8-2. Anti-slip texture;

[0038] 9. Pin;

[0039] 10. Elastic part;

[0040] 11. Compression tank;

[0041] 12. Injector housing; 12-1. Sealing hole. Detailed Implementation

[0042] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0043] See Figures 1 to 5 In specific embodiment 1, this embodiment 1 provides a manual sealing device, including an L-shaped base 1 and a core 7. The L-shaped base 1 includes a first part 1-1 and a second part 1-2 in a vertical state. The side of the first part 1-1 of the L-shaped base 1 facing the second part 1-2 is connected to one side of the base plate 2. The other side of the base plate 2 is connected to one side of the movable block 3, and the other side of the sliding block is connected to the positioning block 4. One end of the core 7 passes through the positioning block 4, the movable block 3, the base plate 2, and the first part 1-1 of the L-shaped base 1 in sequence, and is connected to an eccentric shaft handle 8 via a pin 9. The eccentric shaft handle 8 can rotate around the pin 9 to realize the axial movement of the core 7. The eccentric shaft handle 8 controls the axial movement of the core 7. The core 7 and the eccentric shaft handle 8 can also be connected by a hinge structure. The other end of the core 7 is fitted with a nut 6. There is a gap between the nut 6 and the positioning block 4. The gap and the core 7 form a compression groove 11 for compressing the O-ring seal 5. The base plate 2 and the first part 1-1 of the L-shaped base 1 are fixed together by screws. The positioning block 4 and the movable block 3 are fixed together by screws. The rotation of the eccentric shaft handle 8 causes the core 7 to move axially back and forth, which in turn moves the nut 6, compressing and releasing the O-ring 5 in the compression groove 11. In the compressed state, the O-ring 5 is squeezed outwards until it contacts the inner wall of the sealing hole 12-1, thus sealing the hole. The core 7 acts like a drive rod, moving back and forth under the action of the eccentric shaft handle 8, which in turn moves the nut 6, controlling the size of the compression groove 11 and thus compressing and releasing the O-ring 5, ultimately sealing and releasing the sealing hole 12-1.

[0044] Specifically, when the eccentric shaft handle 8 is flipped upwards ( Figure 2 When the eccentric shaft handle 8 is flipped down, pulling the core 7 backward causes the nut 6 to move backward. At this time, the nut 6, in conjunction with the axial extension 4-1 of the positioning block 4, uses the compression groove 11 to compress the O-ring seal 5, thus sealing the injection nozzle seat 12's sealing hole 12-1 with the O-ring seal 5. This operation is convenient and the sealing is more reliable. When the eccentric shaft handle 8 is flipped down (… Figure 2When the eccentric shaft handle 8 is flipped downwards, the core 7 moves forward along with the nut 6 under the thrust of the eccentric shaft handle 8. At this time, the nut 6, in conjunction with the axial extension 4-1 of the positioning block 4, releases the O-ring 5 using the compression groove 11 (i.e., the space of the compression groove 11 becomes larger). The O-ring 5 in the compressed state also returns to its original state (the state of not being squeezed). The circumference of the O-ring 5 separates from the inner wall of the sealing hole 12-1, releasing the state of the O-ring 5 sealing the sealing hole 12-1 of the injector seat 12, making it easier for the injector seat 12 to be lowered.

[0045] See Figure 5 The eccentric shaft handle 8 has a pin hole 8-1 for mounting the pin 9. The cross-section of the pin hole 8-1 is circular, and the end of the eccentric shaft handle 8 where the pin hole 8-1 is located also has a circular cross-section. The distances from the center of the pin hole 8-1 to the two sides of the end of the eccentric shaft handle 8 are L1 and L2, respectively. The difference between L1 and L2 is not less than 1.5mm, for example, approximately 1.5mm. The eccentric shaft handle 8 has anti-slip texture 8-2 for easy gripping and application of force during manual operation.

[0046] One end of the core 7 (e.g., the rear end of the core 7) corresponds to the first shaft segment 7-1 of the core 7, and the other end of the core 7 (e.g., the front end of the core 7) corresponds to the second shaft segment 7-2 of the core 7. The diameter of the first shaft segment 7-1 is larger than the diameter of the second shaft segment 7-2. The movable block 3 has a first groove 3-1 on the side facing the base plate 2. The bottom of the first groove 3-1 has a first shaft hole 3-2 for the second shaft segment 7-2 of the core 7 to pass through. The end face of the first shaft segment 7-1 facing the second shaft segment 7-2 corresponds to the bottom of the first groove 3-1. Only the second shaft segment 7-2 of the core 7 can pass through the first shaft hole 3-2. The end face of the first shaft segment 7-1 facing the second shaft segment 7-2 corresponds to the bottom of the first groove 3-1 to limit the forward movement of the core 7. That is, when the end face of the first shaft segment 7-1 facing the second shaft segment 7-2 abuts against the bottom of the first groove 3-1, the core 7 can no longer move forward.

[0047] The outer side of the movable block 3 has several flat areas 3-3, which are easy to clamp with a clamping tool. The rotation of the clamping tool drives the movable block 3 to rotate, which helps to align the movable block 3 and the base plate 2 and fix them with screws.

[0048] The second part 1-2 of the L-shaped base 1 serves as a fixing plate. The fixing plate has positioning holes 1-3 and mounting holes 1-4. The fixing plate connects to the workbench via mounting holes 1-3 and screws. The L-shaped base 1 provides the installation and support foundation for the entire manual sealing device. The top of the fixing plate has a first step 1-5 for limiting the movable block 3 and a second step 1-6 for limiting the positioning block 4. The L-shaped base 1 is made of high-strength alloy material, possessing good structural strength and stability.

[0049] The outer surface of the nut 6 is divided into a third shaft section 6-1 and a fourth shaft section 6-2. The third shaft section 6-1 is close to the compression groove 11. The diameter of the third shaft section 6-1 is larger than that of the fourth shaft section 6-2. The diameter of the third shaft section 6-1 matches the inner diameter of the sealing hole 12-1. The diameter of the fourth shaft section 6-2 is smaller, which makes it easier for the nut 6 to be quickly inserted into the sealing hole 12-1 of the injector seat 12.

[0050] The positioning block 4 has an axial extension section 4-1 that wraps around the core 7 on the side facing the nut 6. The axial extension section 4-1 matches the inner diameter of the sealing hole 12-1. When the core 7 and the nut 6 and the axial extension section 4-1 of the positioning block 4 are embedded in the sealing hole 12-1 of the injector seat 12, the third shaft section 6-1 of the nut 6 and the axial extension section 4-1 of the positioning block 4 support the inner wall of the sealing hole 12-1 of the injector seat 12, so that the axial direction of the sealing hole 12-1 is as consistent as possible with the axial direction of the core 7, thereby improving the sealing effect of the O-ring seal 5 on the sealing hole 12-1 of the injector seat 12 under compression.

[0051] The O-ring 5 is made of annular fluororubber, which has excellent temperature resistance and media resistance, ensuring the reliability of the seal after plugging.

[0052] The second shaft hole 6-3 of nut 6 is sleeved on the other end of core 7. After the injector seat 12 is installed, nut 6 corresponds to the inside of the sealing hole 12-1 of injector seat 12.

[0053] This embodiment 1 provides a manual sealing device suitable for sealing the holes in 350MPa specification components (such as injector housing 12), and also suitable for other specification products (including but not limited to injector housing 12, or other products with holes). When a product has several sealing holes 12-1 that need to be sealed, multiple sets of manual sealing devices can be used to simultaneously seal several sealing holes 12-1.

[0054] See Figure 6 and 7In specific embodiment 2, a manual sealing device is provided. The difference between embodiment 2 and embodiment 1 is that the first shaft segment 7-1 of the core 7 is further provided with a ring of protrusions 7-3, which are located within the first groove 3-1. Under the action of the core 7, the protrusions 7-3 move back and forth within the first groove 3-1. The base plate 2 has a second groove 2-1 on the side facing the movable block 3. An elastic part 10 is provided within the second groove 2-1, which abuts against or connects to the protrusions 7-3. The elastic part 10 is a spring.

[0055] In this embodiment 2, a manual sealing device is used when the eccentric shaft handle 8 is flipped upwards ( Figure 2 When the eccentric shaft handle 8 is flipped down, it pulls the core 7 backward. The core 7 drives the nut 6 and the protrusion 7-3 to move backward synchronously. At this time, the nut 6, in conjunction with the axial extension 4-1 of the positioning block 4, uses the compression groove 11 to compress the O-ring seal 5, and simultaneously the protrusion 7-3 compresses the spring, thus achieving the sealing operation of the O-ring seal 5 on the sealing hole 12-1 of the injector seat 12. When the eccentric shaft handle 8 is flipped down ( Figure 2 When the eccentric shaft handle 8 is flipped downwards, the core 7, under the thrust of the spring 10, drives the nut 6 and the protrusion 7-3 to move forward synchronously. At this time, the nut 6, in conjunction with the axial extension 4-1 of the positioning block 4, uses the compression groove 11 (i.e., the space of the compression groove 11 becomes larger) to release the O-ring seal 5. The O-ring seal 5 in the compressed state also returns to its original state (the state of not being squeezed). Synchronously, under the action of the compression spring, the protrusion 7-3 is pushed forward. The compression spring uses the protrusion 7-3 to increase the force of the core 7 moving forward, helping the core 7 to move forward more quickly, making the space of the compression groove 11 larger more quickly. The O-ring seal 5 separates more quickly from the inner wall of the sealing hole 12-1, and more quickly releases the state of the O-ring seal 5 blocking the sealing hole 12-1 of the injector seat 12, which facilitates the removal of the injector seat 12 and improves the efficiency of the entire working process.

[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A manual sealing device, characterized in that: The manual sealing device includes an L-shaped base (1) and a core (7). The L-shaped base (1) includes a first part (1-1) and a second part (1-2) in a vertical state. The side of the first part (1-1) of the L-shaped base (1) facing the second part (1-2) is connected to one side of the base plate (2). The other side of the base plate (2) is connected to one side of the movable block (3). The other side of the sliding block is connected to the positioning block (4). One end of the core (7) passes through the positioning block (4), the movable block (3), the base plate (2) and the first part (1-1) of the L-shaped base (1) in sequence, and is connected to the eccentric shaft handle (8) through the pin (9). The eccentric shaft handle (8) controls the axial movement of the core (7). The other end of the core (7) is fitted with a nut (6), and there is a gap between the nut (6) and the positioning block (4). The gap and the core (7) form a compression groove (11) for compressing the O-ring seal (5).

2. The manual sealing device according to claim 1, characterized in that: One end of the core (7) corresponds to the first shaft segment (7-1) of the core (7), and the other end of the core (7) corresponds to the second shaft segment (7-2) of the core (7). The diameter of the first shaft segment (7-1) is larger than the diameter of the second shaft segment (7-2). The movable block (3) has a first groove (3-1) on the side facing the base plate (2). The bottom of the first groove (3-1) has a first shaft hole (3-2) for the second shaft segment (7-2) in the core (7) to pass through. The end face of the first shaft segment (7-1) facing the second shaft segment (7-2) corresponds to the bottom of the first groove (3-1).

3. The manual sealing device according to claim 1, characterized in that: The positioning block (4) has an axial extension section (4-1) that wraps the core (7) on the side facing the nut (6), and the axial extension section (4-1) matches the inner diameter of the sealing hole (12-1).

4. The manual sealing device according to claim 3, characterized in that: The first shaft section (7-1) of the core (7) is provided with a ring of protrusions (7-3), and the protrusions (7-3) are located in the first groove (3-1); The bottom plate (2) has a second groove (2-1) on one side facing the movable block (3). The second groove (2-1) has an elastic part (10) inside. The elastic part (10) abuts against or connects with the protrusion (7-3).

5. The manual sealing device according to claim 4, characterized in that: The elastic part (10) is a spring; The O-ring (5) is an annular fluororubber gasket.

6. A manual sealing device according to claim 1, 2, 3, 4, or 5, characterized in that: The outer side of the active block (3) has several planar areas (3-3).

7. The manual sealing device according to claim 6, characterized in that: The second part (1-2) of the L-shaped base (1) serves as a fixing plate. The top of the fixing plate is provided with a first step (1-5) for limiting the movable block (3) and a second step (1-6) for limiting the positioning block (4).

8. The manual sealing device according to claim 7, characterized in that: The outer surface of the nut (6) is divided into a third shaft section (6-1) and a fourth shaft section (6-2). The third shaft section (6-1) is close to the compression groove (11). The diameter of the third shaft section (6-1) is larger than the diameter of the fourth shaft section (6-2). The diameter of the third shaft section (6-1) matches the inner diameter of the sealing hole (12-1). The second shaft hole (6-3) of the nut (6) is fitted onto the other end of the core (7).

9. The manual sealing device according to claim 8, characterized in that: The eccentric shaft handle (8) is provided with a pin hole (8-1) for installing the pin (9). The cross section of the pin hole (8-1) is circular. The cross section of the end of the eccentric shaft handle (8) where the pin hole (8-1) is located is circular. The distances from the center of the pin hole (8-1) to the two sides of the end of the eccentric shaft handle (8) are L1 and L2, respectively. The difference between the distances of L1 and L2 is not less than 1.5mm.

10. A manual sealing device according to claim 9, characterized in that: The eccentric shaft handle (8) is provided with anti-slip texture (8-2).

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