A kind of anti-leakage joint structure of plunger pump

Abstract

The utility model relates to the technical field of pump components, specifically to a leak-proof joint structure of a plunger pump, including a plunger pump body, a fixed sleeve sleeve is provided on the outer wall of one end of the plunger pump body, and an inlet pipe connection seat and an outlet pipe connection seat are provided at one end of the plunger pump body away from the fixed sleeve. The utility model effectively prevents leakage of liquid at the connection by matching the inlet and outlet leak-proof plugs with the inner diameters of the inlet and outlet pipes, and enhances the sealing performance. The inlet screw hole and the outlet screw hole provide a screw connection space for the installation of the inlet and outlet leak-proof plugs, ensuring the smooth installation of the leak-proof structure. The sealing threaded connector is provided so that the inlet and outlet leak-proof plugs and the outlet leak-proof plugs can be threadedly connected to the inlet screw hole and the outlet screw hole respectively, which is not only convenient to install, but also further enhances the sealing of the joint, effectively preventing liquid leakage.

Description

Technical Field

[0001] The utility model relates to the technical field of pump components, in particular to a liquid leakage-proof joint structure of a plunger pump. Background Art

[0002] As an important hydraulic transmission device, plunger pumps are widely used in fluid transportation in the chemical, petroleum, metallurgy, pharmaceutical, food and other industries. However, due to the high pressure and high speed flow of liquid involved in its working process, liquid leakage has become a common problem. This not only affects the normal operation of the equipment, but may also cause harm to the working environment and operators. Most of today's plunger pumps are sealed with simple flanges. Long-term use leads to a significant reduction in the sealing effect and poor anti-leakage effect. Utility Model Content

[0003] The utility model aims to provide a leak-proof joint structure for a plunger pump, so as to solve the problem in the background technology that most plunger pumps are sealed by simple flanges, and the sealing effect is greatly reduced and the leak-proof effect is deteriorated due to long-term use.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A leak-proof joint structure for a plunger pump, comprising a plunger pump body, wherein an outer wall of one end of the plunger pump body is sleeved with a fixed sleeve seat, and an end of the plunger pump body away from the fixed sleeve seat is provided with a liquid inlet pipe connection seat and a liquid outlet pipe connection seat;

[0006] A liquid inlet screw hole is provided at the center of the liquid inlet pipe connection seat, and a liquid outlet screw hole is provided at the center of the liquid outlet pipe connection seat;

[0007] The liquid inlet screw hole is equipped with a liquid inlet leak-proof plug that matches the inner diameter of the liquid inlet pipe and is plugged in, and the liquid outlet screw hole is equipped with a liquid outlet leak-proof plug that matches the inner diameter of the liquid outlet pipe and is plugged in;

[0008] The liquid inlet leak-proof plug tube and the liquid outlet leak-proof plug tube are coaxially connected with sealing threaded connectors which are respectively matched with the sizes of the liquid inlet screw hole and the liquid outlet screw hole and are threadedly connected.

[0009] Preferably, a plurality of flange connection holes for external pipeline flange connection are formed around the liquid inlet pipe connection seat and the liquid outlet pipe connection seat.

[0010] Preferably, a shock-absorbing inner ring is provided on the inner wall of the fixed sleeve.

[0011] Preferably, the shock-absorbing inner ring is made of a silicone material with a rough surface and has a thickness of 2-4 mm.

[0012] Preferably, the lengths of the liquid inlet and liquid outlet leak-proof cannulas are both at least 1 cm.

[0013] Preferably, the liquid inlet leak-proof cannula and the liquid outlet leak-proof cannula both comprise metal rings, and a sealing ring sleeve made of silicone material and having a thickness of 1-3 mm is arranged on the outer wall of the metal ring.

[0014] Preferably, an anti-corrosion coating with a thickness of 0.2-0.5 mm is provided on the inner wall of the metal ring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the anti-leakage joint structure of the plunger pump, the inlet anti-leakage plug and the outlet anti-leakage plug are adapted to the inner diameters of the inlet pipe and the outlet pipe, and the plug-in matching method effectively prevents leakage of liquid at the connection, and enhances the sealing performance. The opening of the inlet screw hole and the outlet screw hole provides a screw connection space for the installation of the inlet anti-leakage plug and the outlet anti-leakage plug, ensuring the smooth installation of the anti-leakage structure. The setting of the sealing threaded connector enables the inlet anti-leakage plug and the outlet anti-leakage plug to be threadedly connected to the inlet screw hole and the outlet screw hole respectively, which is not only convenient for installation, but also further enhances the sealing of the joint, effectively preventing liquid leakage.

[0017] 2. In the anti-leakage joint structure of the plunger pump, a plurality of flange connection holes for external pipe flange connection are provided around the inlet pipe connection seat and the outlet pipe connection seat, so that the external pipe can be connected to the inlet pipe connection seat and the outlet pipe connection seat by flange connection, which increases the diversity and flexibility of the connection method and is convenient for selection according to needs in practical applications.

[0018] 3. In the anti-leakage liquid joint structure of the plunger pump, both the liquid inlet anti-leakage plug and the liquid outlet anti-leakage plug include metal rings, and a sealing ring sleeve made of silicone material is arranged on the outer wall of the metal ring, which enhances the sealing performance of the anti-leakage plug and ensures that the liquid will not leak from the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, further detailed explanation is provided, but the accompanying drawings do not constitute a limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the liquid inlet leak-proof cannula of the utility model.

[0023] The meaning of the symbols in the figure:

[0024] 10. Plunger pump body; 11. Flange connection hole; 12. Liquid inlet screw hole; 13. Liquid outlet screw hole;

[0025] 20. Fixed sleeve; 21. Mounting foot; 22. Fixed hole; 23. Shock-absorbing inner ring;

[0026] 30. Liquid inlet pipe connection seat; 31. Liquid inlet leak-proof cannula; 32. Sealed threaded connector;

[0027] 311. Metal ring; 312. Sealing ring sleeve; 313. Anti-corrosion coating;

[0028] 40. Liquid outlet pipe connection seat; 41. Liquid outlet leak-proof cannula. DETAILED DESCRIPTION

[0029] The following will combine the embodiments of the utility model and the drawings of the specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] A leak-proof joint structure for a plunger pump, such as Figure 1-Figure 3As shown, it includes a plunger pump body 10, a fixed sleeve 20 is sleeved on the outer wall of one end of the plunger pump body 10, and an inlet pipe connection seat 30 and a liquid outlet pipe connection seat 40 are arranged at one end of the plunger pump body 10 away from the fixed sleeve 20; a liquid inlet screw hole 12 is opened at the center of the liquid inlet pipe connection seat 30, and a liquid outlet screw hole 13 is opened at the center of the liquid outlet pipe connection seat 40; a liquid inlet leak-proof plug 31 that is adapted to the inner diameter size of the liquid inlet pipe and plugged in is installed on the liquid inlet screw hole 12, and a liquid outlet leak-proof plug 41 that is adapted to the inner diameter size of the liquid outlet pipe and plugged in is installed on the liquid outlet screw hole 13; the liquid inlet leak-proof plug 31 and the liquid outlet leak-proof plug 41 are coaxially connected with plugs that are adapted to the sizes of the liquid inlet screw hole 12 and the liquid outlet screw hole 13, respectively. The sealing threaded connector 32 is equipped with a threaded connection. By matching the liquid inlet leak-proof plug 31 and the liquid outlet leak-proof plug 41 with the inner diameter sizes of the liquid inlet pipe and the liquid outlet pipe, the plug-in matching method effectively prevents leakage of liquid at the connection point and enhances the sealing performance. The opening of the liquid inlet screw hole 12 and the liquid outlet screw hole 13 provides a screw connection space for the installation of the liquid inlet leak-proof plug 31 and the liquid outlet leak-proof plug 41, ensuring the smooth installation of the anti-leakage structure. The setting of the sealing threaded connector 32 enables the liquid inlet leak-proof plug 31 and the liquid outlet leak-proof plug 41 to be threadedly connected to the liquid inlet screw hole 12 and the liquid outlet screw hole 13 respectively, which is not only convenient for installation, but also further enhances the sealing of the joint and effectively prevents liquid leakage.

[0032] Furthermore, a plurality of flange connection holes 11 for flange connection of external pipes are provided around the liquid inlet pipe connection seat 30 and the liquid outlet pipe connection seat 40, so that the external pipes can be connected to the liquid inlet pipe connection seat 30 and the liquid outlet pipe connection seat 40 by flange connection, thereby increasing the diversity and flexibility of the connection methods and facilitating selection according to needs in practical applications.

[0033] Specifically, the inner wall of the fixed sleeve 20 is provided with a shock-absorbing inner ring 23, which is made of a rough-surfaced silicone material with a thickness of 2-4 mm, and can effectively reduce the vibration and noise generated by the plunger pump body 10 during operation, thereby improving the stability and service life of the equipment.

[0034] The lengths of the liquid inlet leak-proof insert tube 31 and the liquid outlet leak-proof insert tube 41 are both at least 1 cm, which ensures the stability and sealing of the plug-in fit and effectively prevents leakage of liquid at the connection.

[0035] In addition, both the liquid inlet leak-proof cannula 31 and the liquid outlet leak-proof cannula 41 include a metal ring 311, and a sealing ring sleeve 312 made of silicone material and having a thickness of 1-3 mm is arranged on the outer wall of the metal ring 311, which enhances the sealing performance of the leak-proof cannula and ensures that liquid does not leak from the connection.

[0036] It is worth noting that an anti-corrosion coating 313 with a thickness of 0.2-0.5 mm is provided on the inner wall of the metal ring 311, which can effectively prevent the metal ring 311 from being corroded due to contact with corrosive liquid, thereby extending the service life of the leak-proof cannula.

[0037] The working principle of the anti-leakage joint structure of the plunger pump: the operator selects the anti-leakage inlet tube 31 and the anti-leakage outlet tube 41 which match the inner diameters of the inlet tube and the outlet tube respectively, aligns the sealing threaded connector 32 of the inlet tube 31 with the inlet screw hole 12, and inserts it into the inlet screw hole 12 to ensure a tight plug-in fit. Similarly, aligns the sealing threaded connector 32 of the outlet tube 41 with the outlet screw hole 13, and inserts it into the outlet screw hole 13 to ensure a tight plug-in fit. The prepared inlet tube is connected to the inlet anti-leakage tube 31 to ensure a tight connection without leakage, and the prepared outlet tube is connected to the outlet anti-leakage tube 41 to ensure a tight connection without leakage.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A leak-proof joint structure for a plunger pump, comprising a plunger pump body (10), characterized in that: A fixed sleeve (20) is sleeved on the outer wall of one end of the plunger pump body (10), and a liquid inlet pipe connecting seat (30) and a liquid outlet pipe connecting seat (40) are provided on one end of the plunger pump body (10) away from the fixed sleeve (20); A liquid inlet screw hole (12) is provided at the center of the liquid inlet pipe connection seat (30), and a liquid outlet screw hole (13) is provided at the center of the liquid outlet pipe connection seat (40); The liquid inlet screw hole (12) is provided with a liquid inlet leak-proof plug tube (31) which is compatible with the inner diameter of the liquid inlet pipe and is plugged in, and the liquid outlet screw hole (13) is provided with a liquid outlet leak-proof plug tube (41) which is compatible with the inner diameter of the liquid outlet pipe and is plugged in; The liquid inlet leak-proof plug tube (31) and the liquid outlet leak-proof plug tube (41) are coaxially connected with a sealing threaded connector (32) that is threadedly connected and matches the size of the liquid inlet screw hole (12) and the liquid outlet screw hole (13) respectively.

2. The anti-leakage joint structure of the plunger pump according to claim 1, characterized in that: A plurality of flange connection holes (11) for external pipeline flange connection are formed around the liquid inlet pipe connection seat (30) and the liquid outlet pipe connection seat (40).

3. The anti-leakage joint structure of the plunger pump according to claim 1, characterized in that: The inner wall of the fixed sleeve (20) is provided with a shock-absorbing inner ring (23).

4. The anti-leakage joint structure of the plunger pump according to claim 3, characterized in that: The shock-absorbing inner ring (23) is made of a silica gel material with a rough surface and has a thickness of 2-4 mm.

5. The anti-leakage joint structure of the plunger pump according to claim 1, characterized in that: The lengths of the liquid inlet leak-proof cannula (31) and the liquid outlet leak-proof cannula (41) are both at least 1 cm.

6. The anti-leakage joint structure of the plunger pump according to claim 1, characterized in that: The liquid inlet leak-proof cannula (31) and the liquid outlet leak-proof cannula (41) both comprise a metal ring (311), and a sealing ring sleeve (312) made of silicone material and having a thickness of 1-3 mm is arranged on the outer wall of the metal ring (311).

7. The anti-leakage joint structure of the plunger pump according to claim 6, characterized in that: An anti-corrosion coating (313) with a thickness of 0.2-0.5 mm is provided on the inner wall of the metal ring (311).

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