Self-lubricating plunger pump

Abstract

The utility model discloses a self-lubricating plunger pump, and relates to the technical field of plunger pumps. The plunger pump comprises a plunger pump body, a plunger barrel is fixedly connected to the left side of the plunger pump body, an oil storage box is fixedly connected to the top of the plunger barrel, conveying pipes are fixedly connected to the front face and the back face of the plunger barrel, and buffering plugs are fixedly connected to the interiors of the two conveying pipes. The tops of the two conveying pipes are fixedly connected with the surface of an oil storage box, and an oil injection assembly is arranged in the oil storage box. According to the utility model, the grease injection assembly is arranged, specifically, the push plate can extrude the grease after being pushed, and then the push plate is contracted and reset, so that the grease can continuously enter the conveying pipe, then the grease flows out through the flow dividing groove in the buffer plug and is in contact with the surface of the buffer plug, and the grease can be lubricated without the operation of a worker; and in addition, the buffer plug can be lubricated in time, the condition of dry friction is avoided, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of plunger pumps, in particular to a self-lubricating plunger pump. Background Art

[0002] The plunger pump works by utilizing the volume change caused by the reciprocating motion of the plunger in the plunger sleeve. The water outlet and water inlet of the plunger pump are set for one-way flow to achieve one-way water pumping by the plunger.

[0003] After a period of use, the plunger pump needs to lubricate the internal plunger rod to reduce friction and increase the service life of the equipment. When lubricating the existing plunger rod, workers are usually required to pump grease into the inside of the plunger pump. The manual operation is relatively complicated and increases labor. When the staff forgets to lubricate, it is easy to cause excessive friction of the plunger rod, affecting the normal operation of the plunger pump. In severe cases, it will cause damage to the plunger pump and cause economic losses. Therefore, we propose a self-lubricating plunger pump. Utility Model Content

[0004] The purpose of the utility model is to provide a self-lubricating plunger pump, which provides an oil injection component, specifically a push plate that squeezes the butter after being pushed, and then contracts and resets the push plate, so that the butter can continuously enter the delivery pipe, and then the butter will flow out through the diverter groove on the buffer plug, and then contact the surface of the buffer plug for lubrication. It does not require staff operation, reduces labor, and can lubricate the buffer plug in time to avoid dry friction, thereby increasing the service life of the equipment, solving the problem that manual operation is relatively complicated and labor-intensive. When the staff forgets to lubricate, it is easy to cause excessive friction of the plunger rod, affecting the normal operation of the plunger pump.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a self-lubricating plunger pump, comprising a plunger pump body, a plunger barrel fixedly connected to the left side of the plunger pump body, an oil storage box fixedly connected to the top of the plunger barrel, a delivery pipe fixedly connected to the front and back of the plunger barrel, a buffer plug fixedly connected to the inside of the two delivery pipes, and the tops of the two delivery pipes fixedly connected to the surface of the oil storage box;

[0007] An oil filling assembly is arranged inside the oil storage box, and the oil filling assembly includes a guide seat, the top of the guide seat is triangular, and push plates are arranged on the front and back of the guide seat. The outer surface of the push plate is provided with a groove, and the inner wall of the groove is provided with a sealing sleeve. By arranging the oil filling assembly, specifically, the push plate will squeeze the butter after being pushed, and then the push plate will be retracted and reset. In this way, the butter can continuously enter the delivery pipe, and then the butter will flow out through the diverter groove on the buffer plug, and then contact the surface of the buffer plug for lubrication. No staff operation is required, which reduces labor, and the buffer plug can be lubricated in time to avoid dry friction, thereby increasing the service life of the equipment.

[0008] Furthermore, a plunger rod is slidably connected to the inside of the plunger barrel, a plurality of diverter grooves are provided inside the buffer plug, a hydraulic cylinder 1 is fixedly connected to the top of the oil storage box, a fixing frame is provided on the right side of the hydraulic cylinder 1, and a hydraulic cylinder 2 is fixedly connected to the top of the fixing frame. Since the buffer plug is provided with diverter grooves, it can buffer the flow of butter and avoid waste of butter caused by excessive one-time use.

[0009] Furthermore, the bottom output end of the hydraulic cylinder 2 is fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to two connecting rods, the bottoms of the two connecting rods both penetrate the oil storage box and extend to the inside, the two connecting rods are slidably connected to the oil storage box, and the bottoms of the two connecting rods are fixedly connected to a sealing block, the bottom of the hydraulic cylinder 2 is fixedly connected to the top of the oil storage box, and the side of the sealing block away from the guide seat is in contact with the inner wall of the oil storage box, and the sealing block is set, specifically, the hydraulic cylinder 2 is started to drive the connecting frame to move downward, then the connecting frame drives the two sealing blocks to move downward through the two connecting rods, and when the sealing blocks move to the left and right sides of the guide seat, they will play a sealing role, so that after the push plate squeezes the butter, the butter will be smoothly pushed into the delivery pipe.

[0010] Furthermore, a cavity is provided inside the guide seat, and openings are provided on the front and back of the cavity. The parts connected to the two push plates are the same. A push rod is fixedly connected to the bottom output end of the hydraulic cylinder, and the push rod passes through the guide seat and extends into the cavity. A movable rod is rotatably connected to one side of the push plate close to the guide seat, and the other end of the movable rod is rotatably connected to the bottom of the push rod. The surface of the movable rod contacts the inner wall of the opening. When the hydraulic cylinder is started to drive the push rod to move downward, the push rod drives the two movable rods to expand, and the connecting frame pushes the push plate to move toward the inner wall of the oil storage box to squeeze the butter.

[0011] Furthermore, two limit rods are fixedly connected to one side of the push plate close to the guide seat, and springs are sleeved on the outside of the two limit rods. The limit rods penetrate the guide seat and extend into the cavity. The limit rods are slidably connected to the guide seat. When the push plate moves, the limit rods are driven to move together and the springs are stretched. The springs can assist the push plate in resetting through the action of elasticity.

[0012] Furthermore, the side of the spring close to the push plate is fixedly connected to the surface of the push plate, the side of the spring away from the push plate is fixedly connected to the surface of the guide seat, the top of the sealing sleeve is in contact with the surface of the guide seat, and the other three sides of the sealing sleeve are in contact with the inner wall of the oil storage box. The sealing sleeve is used to perform a sealing function to prevent butter from entering the gap between the push plate and the guide seat.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets an oil injection component, specifically, the push plate will squeeze the butter after being pushed, and then the push plate will be retracted and reset, so that the butter can continuously enter the delivery pipe, and then the butter will flow out through the diverter groove on the buffer plug, and then contact the surface of the buffer plug for lubrication. It does not require staff operation, reduces labor, and can lubricate the buffer plug in time to avoid dry friction, thereby increasing the service life of the equipment.

[0015] 2. The utility model sets a sealing block, specifically, starts the second hydraulic cylinder to drive the connecting frame to move downward, and the connecting frame drives the two sealing blocks to move downward through two connecting rods. When the sealing blocks move to the left and right sides of the guide seat, they will play a sealing role, so that after the push plate squeezes the butter, the butter will be smoothly pushed into the conveying pipe.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the oil storage box of the utility model;

[0020] Figure 3 For this utility model Figure 2A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 This is a schematic diagram of the overall structure of the utility model guide seat;

[0022] Figure 5 It is a schematic diagram of the overall structure of the buffer plug of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Plunger pump body; 11. Plunger barrel; 111. Delivery pipe; 112. Buffer plug; 113. Plunger rod; 114. Diverter slot; 12. Oil storage box; 121. Hydraulic cylinder one; 122. Fixed frame; 123. Hydraulic cylinder two; 124. Connecting frame; 125. Connecting rod; 126. Sealing block; 13. Oil filling assembly; 131. Guide seat; 311. Opening; 132. Push plate; 321. Limit rod; 322. Spring; 133. Sealing sleeve; 134. Movable rod; 135. Push rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model 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 them. Based on the embodiments in 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.

[0026] See also Figure 1-5 As shown, the utility model is a self-lubricating plunger pump, comprising a plunger pump body 1, a plunger cylinder 11 is fixedly connected to the left side of the plunger pump body 1, an oil storage box 12 is fixedly connected to the top of the plunger cylinder 11, a delivery pipe 111 is fixedly connected to the front and back of the plunger cylinder 11, a buffer plug 112 is fixedly connected to the inside of the two delivery pipes 111, and the tops of the two delivery pipes 111 are fixedly connected to the surface of the oil storage box 12;

[0027] An oil filling assembly 13 is arranged inside the oil storage box 12, and the oil filling assembly 13 includes a guide seat 131. The top of the guide seat 131 is triangular, and push plates 132 are arranged on the front and back of the guide seat 131. The outer surface of the push plate 132 is provided with a groove, and the inner wall of the groove is provided with a sealing sleeve 133. By setting the oil filling assembly 13, specifically, the push plate 132 will squeeze the butter after being pushed, and then the push plate 132 will be retracted and reset. In this way, the butter can continuously enter the delivery pipe 111, and then the butter will flow out through the diverter groove 114 on the buffer plug 112, and then contact the surface of the buffer plug 112 for lubrication. No staff operation is required, which reduces labor, and the buffer plug 112 can be lubricated in time to avoid dry friction, thereby improving the service life of the equipment.

[0028] A plunger rod 113 is slidably connected inside the plunger barrel 11, a plurality of diversion grooves 114 are provided inside the buffer plug 112, a hydraulic cylinder 121 is fixedly connected to the top of the oil storage box 12, a fixing frame 122 is provided on the right side of the hydraulic cylinder 121, and a hydraulic cylinder 2 123 is fixedly connected to the top of the fixing frame 122.

[0029] The bottom output end of the hydraulic cylinder 2 123 is fixedly connected with a connecting frame 124, and the bottom of the connecting frame 124 is fixedly connected with two connecting rods 125, the bottoms of the two connecting rods 125 both penetrate the oil storage box 12 and extend to the inside, the two connecting rods 125 are both slidably connected to the oil storage box 12, and the bottoms of the two connecting rods 125 are fixedly connected with sealing blocks 126, the bottom of the hydraulic cylinder 2 123 is fixedly connected to the top of the oil storage box 12, and the side of the sealing block 126 away from the guide seat 131 is in contact with the inner wall of the oil storage box 12, and the sealing block 126 is provided, specifically, the hydraulic cylinder 2 123 is started to drive the connecting frame 124 to move downward, and the connecting frame 124 drives the two sealing blocks 126 to move downward through the two connecting rods 125, and when the sealing blocks 126 move to the positions on the left and right sides of the guide seat 131, they will play a sealing role, so that after the push plate 132 squeezes the butter, the butter will be smoothly pushed into the delivery pipe 111.

[0030] A cavity is provided inside the guide seat 131, and openings 311 are provided on the front and back sides of the cavity. The two push plates 132 are connected to the same parts. A push rod 135 is fixedly connected to the bottom output end of the hydraulic cylinder 121. The push rod 135 passes through the guide seat 131 and extends into the cavity. A movable rod 134 is rotatably connected to one side of the push plate 132 close to the guide seat 131. The other end of the movable rod 134 is rotatably connected to the bottom of the push rod 135, and the surface of the movable rod 134 contacts the inner wall of the opening 311.

[0031] Two limit rods 321 are fixedly connected to one side of the push plate 132 close to the guide seat 131. Springs 322 are sleeved on the outside of the two limit rods 321. The limit rods 321 penetrate the guide seat 131 and extend into the cavity. The limit rods 321 are slidably connected to the guide seat 131.

[0032] The side of the spring 322 close to the push plate 132 is fixedly connected to the surface of the push plate 132, and the side of the spring 322 away from the push plate 132 is fixedly connected to the surface of the guide seat 131. The top of the sealing sleeve 133 contacts the surface of the guide seat 131, and the other three sides of the sealing sleeve 133 contact the inner wall of the oil storage box 12.

[0033] A specific application of this embodiment is:

[0034] When in use, the butter is transported into the oil storage box 12 through the oil inlet pipe at the top of the oil storage box 12. Since the top of the guide seat 131 is triangular, it can play a guiding role, and the butter will enter the gap between the guide seat 131 and the oil storage box 12. When lubrication is needed, the hydraulic cylinder 123 is started to drive the connecting frame 124 to move downward, and the connecting frame 124 drives the two sealing blocks 126 to move downward through the two connecting rods 125. When the sealing blocks 126 move to the positions on the left and right sides of the guide seat 131, they will play a sealing role. Then the hydraulic cylinder 121 is started to drive the push rod 135 to move downward, and the push rod 135 drives the two movable rods 134 to expand, and the connecting frame 124 pushes the push plate 132 to move toward the inner wall position of the oil storage box 12, and the sealing sleeve 133 moves together. The sealing sleeve 133 is used to play a sealing role to prevent butter from entering the gap between the push plate 132 and the guide seat 131. At the same time, the push plate 132 will drive the limit rod 321 to move together and stretch the spring 322, so the movement of the push plate 132 will squeeze the butter. Since the sealing block 126 seals the triangular position on the left and right sides of the guide seat 131, after the push plate 132 squeezes the butter, the butter will be smoothly pushed into the delivery pipe 111, and then the push rod 135 is pulled upward to reset, then the movable rod 134 drives the push plate 132 to reset, and at the same time, the push plate 132 will be assisted in resetting by the elasticity of the spring 322, and then the push rod 135 is pushed downward again to move the push plate 132 to squeeze the butter. This reciprocating process can make the butter continuously enter the delivery pipe 111, and then the butter will flow out through the diverter groove 114 on the buffer plug 112, and then contact the surface of the buffer plug 112 for lubrication. No staff operation is required, which reduces labor, and the buffer plug 112 can be lubricated in time to avoid dry friction and improve the service life of the equipment.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A self-lubricating plunger pump, comprising a plunger pump body (1), a plunger cylinder (11) being fixedly connected to the left side of the plunger pump body (1), and an oil storage box (12) being fixedly connected to the top of the plunger cylinder (11), characterized in that: The front and back sides of the plunger cylinder (11) are fixedly connected to a delivery pipe (111), the insides of the two delivery pipes (111) are fixedly connected to a buffer plug (112), and the tops of the two delivery pipes (111) are fixedly connected to the surface of the oil storage box (12); An oil injection assembly (13) is arranged inside the oil storage box (12), and the oil injection assembly (13) comprises a guide seat (131), the top of the guide seat (131) is triangular, and push plates (132) are arranged on the front and back of the guide seat (131), and a groove is formed on the outer surface of the push plate (132), and a sealing sleeve (133) is sleeved on the inner wall of the groove.

2. A self-lubricating plunger pump according to claim 1, characterized in that: The plunger cylinder (11) is slidably connected to a plunger rod (113), the buffer plug (112) is provided with a plurality of diversion grooves (114), the top of the oil storage box (12) is fixedly connected to a hydraulic cylinder 1 (121), a fixing frame (122) is arranged on the right side of the hydraulic cylinder 1 (121), and the top of the fixing frame (122) is fixedly connected to a hydraulic cylinder 2 (123).

3. A self-lubricating plunger pump according to claim 2, characterized in that: The bottom output end of the second hydraulic cylinder (123) is fixedly connected to a connecting frame (124), and the bottom of the connecting frame (124) is fixedly connected to two connecting rods (125), the bottoms of the two connecting rods (125) both penetrate the oil storage box (12) and extend to the inside, and the two connecting rods (125) are both slidably connected to the oil storage box (12).

4. A self-lubricating plunger pump according to claim 3, characterized in that: The bottoms of the two connecting rods (125) are fixedly connected with sealing blocks (126), the bottom of the second hydraulic cylinder (123) is fixedly connected to the top of the oil storage box (12), and the side of the sealing block (126) away from the guide seat (131) is in contact with the inner wall of the oil storage box (12).

5. A self-lubricating plunger pump according to claim 4, characterized in that: A cavity is provided inside the guide seat (131), and openings (311) are provided on the front and back sides of the cavity. The two push plates (132) are connected to the same parts. A push rod (135) is fixedly connected to the bottom output end of the hydraulic cylinder 1 (121), and the push rod (135) passes through the guide seat (131) and extends into the cavity.

6. A self-lubricating plunger pump according to claim 4, characterized in that: A movable rod (134) is rotatably connected to one side of the push plate (132) close to the guide seat (131), and the other end of the movable rod (134) is rotatably connected to the bottom of the push rod (135), and the surface of the movable rod (134) is in contact with the inner wall of the opening (311).

7. A self-lubricating plunger pump according to claim 5, characterized in that: Two limiting rods (321) are fixedly connected to one side of the push plate (132) close to the guide seat (131), and springs (322) are sleeved on the outer sides of the two limiting rods (321). The limiting rods (321) penetrate the guide seat (131) and extend into the cavity, and the limiting rods (321) are slidably connected to the guide seat (131).

8. A self-lubricating plunger pump according to claim 7, characterized in that: The side of the spring (322) close to the push plate (132) is fixedly connected to the surface of the push plate (132), and the side of the spring (322) away from the push plate (132) is fixedly connected to the surface of the guide seat (131). The top of the sealing sleeve (133) contacts the surface of the guide seat (131), and the other three sides of the sealing sleeve (133) contact the inner wall of the oil storage box (12).

Images