Joint structure for manual lubricating pump

Abstract

The utility model discloses a joint structure for a manual lubrication pump, which belongs to the field of manual lubrication pumps and comprises a pump body and a hose, a hand rocker is movably mounted on the pump body, one end of the pump body is fixedly connected with a discharge port, and the discharge port is fixedly connected with the hose through a joint component. The connector assembly comprises a connecting plate, a positioning cover, a sealing bin, a sealing gasket, a connecting block, a fixing box, a partition bottom plate and a fixing block, the handle is pinched oppositely through the arranged connector assembly, the handle drives the fixing body to move oppositely and move out of the limiting groove, and therefore fixed limitation of the sealing gasket and the sealing bin is relieved; and then the fixing box, the connecting block and the sealing gasket are moved out of the sealing bin, after the sealing gasket is detached from the connecting block, a new sealing gasket is arranged on the connecting block in a sleeving mode, and the sealing gasket is clamped into the sealing bin again, so that installation can be completed, the sealing gasket is convenient to replace, the sealing gasket is not prone to moving towards the side face, and the sealing gasket is prevented from falling off and being lost from the interior of the positioning cover.

Description

Technical Field

[0001] The utility model relates to the field of manual lubricating pumps, and particularly relates to a joint structure for a manual lubricating pump. Background Art

[0002] A lubricating pump is a lubricating device that supplies lubricant to lubricating parts. All mechanical equipment needs regular lubrication. In the past, the main lubrication method was manual lubrication after reaching a certain maintenance period according to the working conditions of the equipment. For example, applying grease as commonly said. The lubricating pump can make this maintenance work easier. Lubricating pumps are divided into manual lubricating pumps and electric lubricating pumps. In the prior art: The Chinese utility model patent of CN210600600U discloses an embedded quick-connect joint for a lubricating pump. The advantages of this utility model are convenience, good sealing performance, and the pipe body can be arbitrarily rotated after installation, improving the practicability and working efficiency.

[0003] However, in actual use, after long-term use, the gasket is prone to deformation. When the existing gasket is placed in the clamping sleeve movably, it is easy to fall off and be lost. After deformation, the gasket is prone to displacement, resulting in incomplete sealing and easy leakage from the side. When it is fixedly bonded to the clamping sleeve, the replacement becomes difficult. Therefore, improvement is needed. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a joint structure for a manual lubricating pump, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A joint structure for a manual lubricating pump, comprising a pump body and a hose. A hand rocker is movably installed on the pump body. One end of the pump body is fixedly connected with a discharge port. The discharge port and the hose are fixedly connected through a joint assembly. The joint assembly includes a connecting plate, a positioning cover, a sealing chamber, a gasket, a connecting block, a fixing box, a partition bottom plate, and a fixing block. The positioning cover is fixedly connected to both sides of the connecting plate. The sealing chamber is opened in the positioning cover. The gasket is movably connected in the sealing chamber. One end of the connecting block is movably connected with the gasket. A clamping groove is arranged on the gasket corresponding to the position of the connecting block. The other end of the connecting block is fixedly connected with the fixing box. The partition bottom plate is fixedly connected to the middle position of the fixing box. The fixing block is movably installed in the fixing box and is located on both sides of the partition bottom plate.

[0007] Preferably, the joint assembly further includes a screw hole. The screw hole is arranged in the positioning cover and is communicated with the sealing chamber. Through holes are arranged on the connecting plate corresponding to the positions of the screw holes. The positioning covers on both sides of the connecting plate are communicated with each other.

[0008] Preferably, the joint assembly further includes a sealing ring, which is fixedly connected to the connecting block and is located between the sealing gasket and the fixed box.

[0009] Preferably, the joint assembly further includes a spring and a limiting groove. The spring is movably installed in the fixed box, and both ends of the spring are fixedly connected to the partition bottom plate and the fixed block respectively. The limiting groove is formed on the positioning cover, and the fixed block is movably installed in the limiting groove.

[0010] Preferably, the joint assembly further includes a handle and a movable groove. The movable groove is formed on the fixed box, and the handle passes through the movable groove and is fixedly connected to the fixed block.

[0011] Preferably, the joint assembly further includes a connector. One side of the connector is engraved with threads and is threadedly connected to the positioning cover on one side through the threads. The discharge port is engraved with threads and is threadedly connected to the positioning cover on the other side through the threads.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, through the provided joint assembly, the sealing gasket is located in the sealing chamber. When moving to the side, due to the position of the threads where the diameter is smaller than the minimum width of the sealing gasket, the sealing gasket is not easily dropped or lost.

[0014] In the utility model, through the provided joint assembly, when the sealing gasket needs to be replaced, the handles are pinched towards each other to make the fixed blocks move towards each other and be received into the fixed box. Then, the handle is pulled to move the fixed box, the connecting block, the fixed block and the sealing gasket out. Then, the sealing gasket is disassembled from the connecting block, making the sealing gasket easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the utility model;

[0016] Figure 2 is the structural schematic diagram of the connecting plate, positioning cover, connector and hose of the utility model;

[0017] Figure 3 is the disassembled structural schematic diagram of the positioning cover of the utility model;

[0018] Figure 4 is the cross-sectional structural schematic diagram of the fixed box of the utility model.

[0019] In the figure: 1. Pump body; 2. Hand rocker; 3. Discharge port; 4. Hose; 5. Connector assembly; 501. Connecting plate; 502. Positioning cover; 503. Sealing chamber; 504. Screw hole; 505. Sealing gasket; 506. Connecting block; 507. Sealing ring; 508. Fixed box; 509. Partition bottom plate; 510. Spring; 511. Fixed block; 512. Handle; 513. Connector; 514. Limiting groove; 515. Movable groove. Detailed implementation manners

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.

[0021] As Figure 1 、 Figure 2 and Figure 3 shown, a connector structure for a manual lubricating pump includes a pump body 1 and a hose 4. A hand rocker 2 is movably installed on the pump body 1. One end of the pump body 1 is fixedly connected with a discharge port 3. The discharge port 3 and the hose 4 are fixedly connected through a connector assembly 5. The connector assembly 5 includes a connecting plate 501, a positioning cover 502, a sealing chamber 503, a sealing gasket 505, a connecting block 506, a fixed box 508, a partition bottom plate 509 and a fixed block 511. The positioning cover 502 is fixedly connected to both sides of the connecting plate 501. The sealing chamber 503 is opened in the positioning cover 502. The sealing gasket 505 is movably connected in the sealing chamber 503. The connector assembly 5 further includes a screw hole 504 which is arranged in the positioning cover 502 and is in communication with the sealing chamber 503. Through holes are provided in the connecting plate 501 corresponding to the positions of the screw holes 504. The positioning covers 502 on both sides of the connecting plate 501 are in communication with each other. The connector assembly 5 further includes a connector 513. One side of the connector 513 is engraved with threads and is threadedly connected to one side of the positioning cover 502 through the threads. Threads are engraved on the discharge port 3 and it is threadedly connected to the other side of the positioning cover 502 through the threads. Through the threaded connection of the discharge port 3, the connector 513 and the screw holes 504 in the positioning cover 502, the discharge port 3 and the connector 513 move inward to squeeze the sealing gasket 505, thereby sealing the discharge port 3 and the connector 513, so that the lubricating oil in the discharge port 3 can easily enter the hose 4 without leakage. The maximum diameter of the screw hole 504 is smaller than the minimum width of the cross-sectional state of the sealing gasket 505, so that the sealing gasket 505 and the screw hole 504 hinder each other, and the sealing gasket 505 is not easy to fall off or be lost from the screw hole 504.

[0022] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, one end of the connecting block 506 is movably connected to the gasket 505. A clamping groove is provided at the position of the gasket 505 corresponding to the connecting block 506. The other end of the connecting block 506 is fixedly connected to the fixed box 508. The separating bottom plate 509 is fixedly connected to the middle position of the fixed box 508. The fixing block 511 is movably installed in the fixed box 508 and is located on both sides of the separating bottom plate 509. The joint assembly 5 further includes a sealing ring 507. The sealing ring 507 is movably connected to the connecting block 506 and is located between the gasket 505 and the fixed box 508. The joint assembly 5 further includes a spring 510 and a limiting groove 514. The spring 510 is movably installed in the fixed box 508, and both ends of the spring 510 are fixedly connected to the separating bottom plate 509 and the fixing block 511 respectively. The limiting groove 514 is opened on the positioning cover 502. The fixing block 511 is movably installed in the limiting groove 514. The joint assembly 5 further includes a handle 512 and a moving groove 515. The moving groove 515 is opened on the fixed box 508. The handle 512 passes through the moving groove 515 and is fixedly connected to the fixing block 511. When the handle 512 is pinched inward, the handle 512 moves in the moving groove 515 and drives the fixing block 511 to move out of the fixed box 508. The fixing block 511 moves out of the limiting groove 514, so that the fixed limiting state of the gasket 505 and the sealing chamber 503 is released. Then, the handle 512 is pulled outwards, so that the fixed box 508, the connecting block 506 and the gasket 505 are moved out of the sealing chamber 503. Then, the gasket 505 is disassembled from the connecting block 506, so that the gasket 505 is convenient to disassemble and more convenient to replace.

[0023] It should be noted that the present utility model is a joint structure for a manual lubricating pump. Positioning covers 502 are provided on both sides of the connecting plate 501. Screw holes 504 are provided inside the positioning covers 502, so that the positioning covers 502 on both sides can be threadedly connected to the discharge port 3 and the connector 513 respectively. The connector 513 is fixedly connected to the hose 4. When the connector 513, the discharge port 3 and the screw hole 504 of the positioning cover 502 are threadedly connected, the connector 513 and the discharge port 3 press and fix the gasket 505 on the connecting plate 501, so that the discharge port 3 is fixedly communicated with the hose 4, and the lubricating oil can be introduced into the equipment through the discharge port 3 and the hose 4. The maximum diameter of the screw hole 504 is smaller than the minimum width of the top view plane of the gasket 505, so that the gasket 505 is not likely to fall off or be lost from the screw hole 504. When the gasket 505 needs to be replaced, pinch the handles 512 towards each other, so that the handles 512 move in the movable slots 515. The handles 512 drive the fixed blocks 511 to move synchronously, so that the fixed blocks 511 move inward. The fixed blocks 511 move out of the limit slots 514. The fixed blocks 511 move inward to compress the springs 510, so that the fixed state of the gasket 505 fixedly connected in the sealing chamber 503 is released. Then pull the handles 512 outwards, so that the fixed box 508, the connecting block 506 and the gasket 505 are removed from the sealing chamber 503. Then disassemble the gasket 505 from the connecting block 506, and tightly fit the new gasket 505 with the connecting block 506 through the card slots at the side positions. Then move the gasket 505, the connecting block 506 and the fixed box 508 into the sealing chamber 503, so that the gasket 505 enters the sealing chamber 503. The fixed blocks 511 and the positioning covers 502 are mutually pressed, so that the fixed blocks 511 move inward through the inclined surfaces on the sides. The fixed blocks 511 compress the springs 510, so that the fixed blocks 511 move inward, so that the fixed box 508 is convenient to enter the positioning cover 502. When the fixed blocks 511 move to the position below the limit slots 514, the springs 510 resume expansion, so that the fixed blocks 511 move in the reverse direction and are inserted into the limit slots 514 to fix the fixed box 508, the connecting block 506 and the gasket 505, so that the gasket 505 is fixedly limited in the sealing chamber 503, making the gasket 505 easy to replace. By regularly replacing, it is avoided that the deformation of the gasket 505 affects the sealing.

[0024] The above shows and describes the basic principles, main features and advantages of the present utility model. It is only a preferred embodiment of the present utility model, and its description is relatively specific and detailed, but it cannot be understood as a limitation of the scope of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. Without departing from the principles and purposes of the present utility model, various changes, modifications, substitutions and deformations can be made to the embodiments, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A joint structure for a manual lubrication pump, comprising a pump body (1) and a hose (4), wherein a hand crank (2) is movably mounted on the pump body (1), and one end of the pump body (1) is fixedly connected to a discharge port (3), characterized in that: The discharge port (3) and the hose (4) are fixedly connected via a joint assembly (5), wherein the joint assembly (5) comprises a connecting plate (501), a positioning cover (502), a sealing chamber (503), a sealing gasket (505), a connecting block (506), a fixing box (508), a partition bottom plate (509) and a fixing block (511), wherein the positioning cover (502) is fixedly connected to positions on both sides of the connecting plate (501), the sealing chamber (503) is opened in the positioning cover (502), and the sealing gasket (505) is fixedly connected to the connecting plate (501). ) is movably connected in the sealing chamber (503), one end of the connecting block (506) is movably connected to the sealing gasket (505), a slot is provided on the sealing gasket (505) at a position corresponding to the connecting block (506), the other end of the connecting block (506) is fixedly connected to the fixing box (508), the partition bottom plate (509) is fixedly connected to the middle position of the fixing box (508), and the fixing block (511) is movably installed in the fixing box (508) and is located at two sides of the partition bottom plate (509).

2. A joint structure for a manual lubrication pump according to claim 1, characterized in that: The joint assembly (5) further comprises a screw hole (504), wherein the screw hole (504) is arranged in the positioning cover (502), and the screw hole (504) is connected to the sealing chamber (503), and a through hole is provided at a position corresponding to the screw hole (504) on the connecting plate (501), and the positioning covers (502) on both sides of the connecting plate (501) are connected to each other.

3. A joint structure for a manual lubrication pump according to claim 2, characterized in that: The joint assembly (5) further comprises a sealing ring (507), wherein the sealing ring (507) is movably connected to the connecting block (506), and the sealing ring (507) is located between the sealing pad (505) and the fixing box (508).

4. A joint structure for a manual lubrication pump according to claim 3, characterized in that: The joint assembly (5) further comprises a spring (510) and a limiting groove (514); the spring (510) is movably mounted in the fixing box (508), and two ends of the spring (510) are respectively fixedly connected to the partition bottom plate (509) and the fixing block (511); the limiting groove (514) is provided on the positioning cover (502), and the fixing block (511) is movably mounted in the limiting groove (514).

5. A joint structure for a manual lubrication pump according to claim 4, characterized in that: The joint assembly (5) further comprises a handle (512) and a movable groove (515), wherein the movable groove (515) is provided on the fixing box (508), and the handle (512) passes through the movable groove (515) and is fixedly connected to the fixing block (511).

6. A joint structure for a manual lubrication pump according to claim 5, characterized in that: The joint assembly (5) further comprises a connector (513), one side of which is engraved with threads and is threadedly connected to a positioning cover (502) on one side via the threads, and the discharge port (3) is engraved with threads and is threadedly connected to a positioning cover (502) on the other side via the threads.

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