CN214064548U - Oil level indicating device and lubricating pump with same - Google Patents

Abstract

The application relates to an oil level indicating device and have this oil level indicating device's lubricant pump, including sleeve, indicator lever, supporting spring and sealing member, the indicator lever slides and sets up in the sleeve, be provided with the bulge loop on the indicator lever, the supporting spring cover is located on the indicator lever and one end is inconsistent with the bulge loop, and the supporting spring other end is inconsistent with the sleeve, the both ends of indicator lever are conflict end and instruction end respectively, and the conflict end stretches out the sleeve and is used for pressing the oil board inconsistent with the lubricant pump, and the instruction end is located the sleeve, and stretches out the sleeve when pressing the oil board conflict indicator lever, the sealing member sets up and is used for preventing that lubricating oil from spilling between indicator lever and the sleeve. This application has and makes the workman conveniently observe in time that the oil level is in the condition of low oil level in the lubricating pump.

Description

Oil level indicating device and lubricating pump with same

Technical Field

The application relates to the technical field of lubricating equipment, in particular to an oil level indicating device and a lubricating pump with the same.

Background

A lubrication pump is a lubrication device for supplying lubricant to a lubrication site. Mechanical equipment needs regular lubrication, the main mode of the prior lubrication is that manual lubrication is carried out after a certain maintenance period is reached according to the working condition of the equipment, for example, butter is injected in a popular way, and the maintenance work can be simpler and more convenient through a lubrication pump.

Common lubricating pump includes the pump body, pumping unit, has seted up the oil storage chamber in the pump body, and the pipeline of oil storage chamber and to equipment transport lubricating oil is connected to the pumping unit, gives the equipment that needs lubricating oil with the lubricating oil pump in the oil storage chamber.

In the related art described above, the inventors considered that the amount of the lubricating oil in the oil reservoir is not easily determined, and the fact that the lubricating oil reaches the low oil level cannot be found in time.

SUMMERY OF THE UTILITY MODEL

In order to make things convenient for the workman in time to discover that the lubricating oil in the oil storage chamber reaches low oil level, this application provides an oil level indicating device.

The application provides an oil level indicating device adopts following technical scheme:

the utility model provides an oil level indicating device, includes sleeve, pilot lever, supporting spring and sealing member, the pilot lever slides and sets up in the sleeve, be provided with the bulge loop on the pilot lever, the supporting spring cover is located on the pilot lever and one end is inconsistent with the bulge loop, and the supporting spring other end is inconsistent with the sleeve, the both ends of pilot lever are conflict end and instruction end respectively, and the conflict end stretches out the sleeve and is used for pressing the oil board inconsistent with the lubricating pump, and the instruction end is located the sleeve, and stretches out the sleeve when pressing the oil board conflict pilot lever, the sealing member sets up and is used for preventing that lubricating oil from spilling between pilot lever and the sleeve.

Through adopting above-mentioned technical scheme, press the oil board to remove along with the pumping of lubricating oil during the use, when pressing the contact end of oil board conflict indication lever, press the removal of oil board and promote the contact end compression and support tight supporting spring to make the indication end stretch out the sleeve, the workman observes the appearance of indication end and in time judges the excessive or too little of oil storage intracavity lubricating oil.

Optionally, the inner wall of the sleeve is provided with a support ring, and the support spring abuts against the support ring and thus abuts against the sleeve.

Through adopting above-mentioned technical scheme, supporting spring one end is contradicted with the bulge loop, and the other end is contradicted with the support ring, and mounting structure is simple, stable.

Optionally, a threaded plug is connected to the indicating rod through a thread, and the threaded plug is located on one side, back to the abutting end, of the support ring.

Through adopting above-mentioned technical scheme, the screw plug is used for restricting the distance that the indication rod moved up, especially when supporting spring resets, restricts the distance that moves up of indication rod, the debugging of being convenient for.

Optionally, the outer wall of the sleeve is provided with an installation part, and the outer wall of the installation part is provided with an installation screw and a nut part which is convenient for screwing the installation part.

By adopting the technical scheme, the installation of the sleeve and the pump body is more convenient by the installation screw rod, and the nut part is convenient for workers to rotate the installation screw rod.

Optionally, sleeve one end is provided with a spacing section of thick bamboo, and outside the instruction end was located to the spacing section of thick bamboo cover, the observation groove that pierces through a spacing section of thick bamboo lateral wall was seted up to the lateral wall of a spacing section of thick bamboo, and the tip that a spacing section of thick bamboo kept away from the end of touching is provided with spacing lid.

Through adopting above-mentioned technical scheme, when instructing the end and removing observation trench position, the workman can observe the instruction end to learn the condition of the internal lubricating oil mass of pump, spacing lid carries on spacingly to the removal of indication lever.

Optionally, one end of the limiting cylinder is provided with a mounting stud, and the limiting cylinder is connected to the sleeve through the mounting stud in a threaded manner.

Through adopting above-mentioned technical scheme for spacing section of thick bamboo can be dismantled with the sleeve and be connected, and the dismouting process is convenient.

Optionally, the seal comprises a sealing washer located on a side of the mounting stud facing the abutment end.

Through adopting above-mentioned technical scheme, form sealedly between installation double-screw bolt and conflict end, avoid the lubricating oil of oil storage intracavity to spill through oil level indicating device department, produce extravagantly, seal ring simple structure, it is with low costs, it is sealed effectual.

In order to enable workers to find out the low oil level condition of the lubricating pump in time, the lubricating pump is provided.

The application provides a lubricating pump adopts following technical scheme:

the utility model provides a lubricating pump, includes the pump body, stores up oil chamber, pumping unit and oil level indicating device, the oil chamber is seted up in the pump body, pumping unit sets up on the pump body, is provided with oil feed mouth, oil absorption hole and lubricating oil outlet on the pumping unit, the oil feed mouth is used for being connected with drive oil pipeline, the oil absorption hole is connected with the oil chamber, the lubricating oil outlet is used for going out oil pipe with lubricating oil and is connected, be provided with vertical guide arm in the oil chamber, it is connected with presses the oil board to slide on the vertical guide arm, presses the oil board to separate into upper and lower two pump inner spaces with the oil chamber, and one of them pump inner space is used for storing lubricating oil, the oil absorption hole is linked together with the pump inner space of storing lubricating oil, and oil level indicating device sets up the pump inner space of below and/or top, and supports to touch end and is arranged in the pump inner space of installing.

By adopting the technical scheme, the oil pressing plate in the lubricating pump slides up and down along the guide rod, when oil is pumped, the lubricating oil in the space in the pump for storing the lubricating oil is reduced, so that the oil pressing plate moves, when the oil pressing plate moves, the oil pressing plate abuts against the abutting end of the indicating rod, so that the supporting spring is contracted, and the indicating end moves to the observation groove position, thereby facilitating the observation of workers; when the lubricating pump pumps oil, workers can find out that the oil in the oil storage cavity is less or more in time, and timely oil filling and oil stopping are facilitated.

Optionally, the pumping unit includes a pumping pipeline disposed in the pump unit mounting block, and an oil suction assembly and an oil delivery assembly disposed in the pumping pipeline, one end of the pumping pipeline is provided with a lubricating oil outlet, and the other end of the pumping pipeline is connected to the oil supply port so as to supply driving oil to the oil suction assembly and the oil delivery assembly, the oil delivery assembly is configured to pump out the lubricating oil sucked in the pumping pipeline from the lubricating oil outlet under the action of the driving oil, and the oil suction assembly is configured to suck the lubricating oil into the oil suction hole after the oil delivery assembly pumps out the lubricating oil.

By adopting the technical scheme, the oil suction assembly is used for sucking the lubricating oil in the oil storage cavity into the pumping pipeline under the action of the driving oil, and the oil delivery assembly pumps the lubricating oil out of the pumping unit along the pumping pipeline to the lubricating oil outlet under the action of the driving oil.

Optionally, the pumping unit is provided with a plurality of groups.

Through adopting above-mentioned technical scheme, one or less fuel feeding pipe says, provides drive power for multiunit pumping unit through the fuel feeding mouth, can have more output channel, and the suitability is wider.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the oil pressing plate is pressed against the contact end of the indicating rod, the contact end is pressed to tightly support the supporting spring, the indicating end extends out of the sleeve, and a worker observes the occurrence of the indicating end to judge whether the lubricating oil in the oil storage cavity is too much or too little;

2. the threaded plug is used for limiting the upward moving distance of the indicating rod, and particularly, when the supporting spring is reset, the upward moving distance of the indicating rod is limited, so that debugging is facilitated;

3. a pressure oil plate in the lubricating pump slides up and down along the guide rod, when oil is pumped, the lubricating oil in the space in the lubricating pump for storing the lubricating oil is reduced, so that the pressure oil plate moves, when the pressure oil plate moves, the pressure oil plate abuts against the abutting end of the indicating rod, so that the supporting spring contracts, and the indicating end moves to the observation groove position, thereby facilitating observation of workers; when the lubricating pump pumps oil, workers can find out that the oil in the oil storage cavity is less or more in time, and timely oil filling and oil stopping are facilitated.

Drawings

FIG. 1 is a schematic diagram of a lubrication pump according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view at C of FIG. 2;

FIG. 4 is a schematic structural view of an oil level indicating device according to an embodiment of the present application;

FIG. 5 is a cross-sectional view B-B of FIG. 1;

FIG. 6 is an enlarged view at D of FIG. 5;

FIG. 7 is an enlarged view at E in FIG. 5;

FIG. 8 is a cross-sectional view of the piston sleeve and check valve of an embodiment of the present application;

fig. 9 is a structural sectional view of a check valve of a lubrication pump according to an embodiment of the present application.

Description of reference numerals: 1. a pump body; 11. an oil storage chamber; 111. pressing a oil plate; 112. a vertical guide rod; 12. a communication port; 13. a protective shell; 131. a butterfly bolt; 2. a pumping conduit; 21. a first pumping conduit; 22. a second pumping conduit; 3. an oil absorption assembly; 31. a return spring; 32. a one-way valve; 321. the spring is tightly propped; 322. a valve seat; 3221. a valve stem bore; 323. a one-way plug; 3231. a drive conical surface; 324. adjusting a screw plug; 3241. trepanning; 3242. an oil outlet hole; 325. a valve stem; 326. a seal ring; 33. an oil suction piston; 331. a rod portion; 332. abutting against the contact; 34. sealing sleeves; 4. an oil delivery assembly; 41. an oil cylinder; 411. a drive chute; 412. an oil inlet; 42. a drive piston; 5. a pump unit mounting block; 511. an oil cylinder mounting hole; 51. a pump unit valve block; 53. a valve cover of the oil cylinder; 531. an oil supply port; 54. a drive oil passage; 541. a first drive oil passage; 542. a second drive oil passage; 6. a piston sleeve; 61. an oil inlet sleeve and an oil outlet sleeve; 62. an oil suction sleeve; 621. an oil suction hole; 63. installing a sleeve; 631. a second thread; 64. a second step; 65. a contact conical surface; 66. a lubricant outlet; 7. an oil level indicating device; 71. a sleeve; 72. an indication lever; 73. a support spring; 74. a seal member; 721. a contact end; 722. an indicating end; 723. a convex ring; 711. a support ring; 712. an installation part; 7121. installing a screw rod; 7122. a nut portion; 713. a limiting cylinder; 714. mounting a stud; 7131. an observation tank; 7132. a limiting cover; 724. a threaded plug; 8. a limiting member; 81. a limiting column; 82. fixing the bolt; 811. mounting holes; 812. a threaded hole; 813. a first step.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses a lubricating pump. With reference to fig. 1, it comprises a pump body 1 and a pumping unit. The pumping unit is mounted on the top surface of the pump body 1 by a pump unit mounting block 5. The protective shell 13 is installed on the top surface of the pump body 1, and the protective shell 13 covers the pump unit installation block 5 and is fixedly connected with the pump unit installation block 5 through the butterfly bolt 131.

As shown in fig. 1 and 2, an oil storage cavity 11 is formed in the pump body 1, an oil pressing plate 111 and a vertical guide rod 112 are arranged in the oil storage cavity 11, the vertical guide rod 112 is connected with the inner top wall and the inner bottom surface of the pump body 1, the oil pressing plate 111 is horizontally arranged and sleeved on the vertical guide rod 112 and is connected with the vertical guide rod 112 in a sliding manner, the edge of the oil pressing plate 111 is tightly attached to the pump body 1, so that the oil storage cavity 11 is divided into an upper layer and a lower layer, and during use, lubricating oil is stored in the oil storage cavity 11 above the oil pressing plate 111.

As shown in fig. 2 and 3, the pump body 1 is provided with two oil level indicating devices 7, the two oil level indicating devices 7 are respectively installed on an inner top wall and an inner bottom wall in the oil storage chamber 11, and the oil level indicating devices 7 on the inner top wall and the inner bottom wall have the same structure and size and are arranged in an inverted manner.

As shown in fig. 3 and 4, the oil level indicating device 7 includes a sleeve 71, an indicating rod 72, a supporting spring 73 and a sealing member 74, two ends of the indicating rod 72 are an abutting end 721 and an indicating end 722 respectively, the indicating rod 72 is slidably disposed in the sleeve 71, a protruding ring 723 is integrally protruded on the surface of the indicating rod 72, a supporting ring 711 is coaxially and integrally protruded on the inner wall of the sleeve 71, the supporting spring 73 is sleeved on the indicating rod 72 and one end of the supporting spring is abutted against the protruding ring 723, the other end of the supporting spring 73 is abutted against the supporting ring 711 so as to be abutted against the sleeve 71, and the abutting end 721 extends out of the sleeve 71 and is used for abutting against the oil pressing plate 111 of the lubrication pump.

The outer wall of the sleeve 71 is provided with a mounting part 712, and a mounting screw 7121 and a nut part 7122 which facilitates screwing the mounting part 712 are integrally arranged on the outer wall of the mounting part 712. The mounting screw 7121 is integrally connected to the nut portion 7122, and a screw thread engaged with the mounting screw 7121 is provided at a connection portion between the pump body 1 and the mounting portion 712, so that the sleeve 71 is mounted on the pump body 1, and the nut portion 7122 is located outside the pump body 1.

One end of the sleeve 71 is provided with a limiting cylinder 713, the limiting cylinder 713 is sleeved outside the indicating end 722, and one end of the limiting cylinder 713, which is close to the sleeve 71, is integrally provided with a mounting stud 714 and is in threaded connection with the sleeve 71 through the mounting stud 714.

The outer side wall of the limiting cylinder 713 is provided with an observation groove 7131 penetrating through the side wall of the limiting cylinder 713, the end part of the limiting cylinder 713 far away from the contact end 721 is provided with a limiting cover 7132, the indicating end 722 is positioned in the sleeve 71 and extends out of the sleeve 71 and moves to the range of the observation groove 7131 when the pressure oil plate 111 abuts against the indicating rod 72, so that the indicating cover can be observed.

Seal 74 includes a sealing washer located on the side of mounting stud 714 facing abutment end 721 to prevent leakage of oil.

A threaded plug 724 is screwed onto the indicator rod 72, the threaded plug 724 being located on the side of the support ring 711 facing away from the contact end 721.

As shown in fig. 2 and 3, the pump body 1 is provided with the limiting members 8, the limiting members 8 are provided with four in total, two are located on the inner bottom wall of the oil storage chamber 11, two are located on the inner top wall of the oil storage chamber 11, the limiting members 8 on the inner top wall and the limiting members 8 on the inner bottom wall are the same in structural size.

As shown in fig. 3, the limiting member 8 includes a limiting column 81 and a fixing bolt 82, one end of the limiting column 81 facing the oil pressing plate 111 is provided with a fixing hole, the other end is provided with a threaded hole 812, the fixing hole is communicated with the threaded hole 812 and forms a first step 813 for clamping the head of the fixing bolt 82, the fixing bolt 82 is in threaded connection with the threaded hole 812, and the fixing bolt 82 penetrates through one end of the limiting column 81 opposite to the oil pressing plate 111 and is in threaded connection with the inner top wall or the inner bottom wall of the pump body 1.

As shown in fig. 1 and 2, two communication ports 12 are formed in the top surface of the pump body 1, two pump unit mounting blocks 5 are provided, and each pump unit mounting block includes a pump unit valve block 51 and a cylinder valve cover 53, and ten pumping units are mounted on each pump unit mounting block 5, and five pumping units are one layer and two layers in total. In each pump unit mounting block 5, there is one cylinder valve cover 53, and the number of pump unit valve blocks 51 is the same as the number of pumping units.

The oil cylinder valve covers 53 are fixed on the top surface of the pump body 1 through bolts, and the two oil cylinder valve covers 53 are distributed along the length direction of the pump body 1 and are symmetrically arranged.

Two first driving oil channels 541 which are horizontally arranged and extend along the width direction of the pump body 1 are arranged in the oil cylinder valve cover 53, the two first driving oil channels 541 are distributed up and down and respectively correspond to one layer of pumping unit, and the two first driving oil channels 541 are mutually communicated.

The pump unit valve block 51 has a rectangular parallelepiped structure, and the pump unit valve block 51 is positioned above the communication port 12 and blocks the communication port 12. The pump unit valve block 51 is fixed on the opposite sides of the two cylinder valve covers 53 through bolts, and the pump unit valve block 51 is connected with the top surface of the pump body 1 through bolts.

The surface of the pump unit valve block 51 opposite to the connected cylinder valve cover 53 is provided with an oil supply port 531, the pump unit valve block 51 is internally provided with a second driving oil channel 542 extending along the length direction of the pump body 1, the second driving oil channel 542 is communicated with the oil supply port 531 and the first driving oil channel 541, and the first driving oil channel 541 and the second driving oil channel 542 form a driving oil channel 54.

As shown in fig. 2, the pumping unit includes a pumping pipeline 2, and an oil suction assembly 3 and an oil delivery assembly 4 disposed in the pumping pipeline 2.

As shown in fig. 5 and 6, the oil feeding assembly 4 includes an oil cylinder 41 and a driving piston 42.

As shown in fig. 7, the oil suction assembly 3 includes a return spring 31, a check valve 32, and an oil suction piston 33. The suction piston 33 includes a rod 331 and an interference head 332.

As shown in fig. 7, the pumping duct 2 opens in the pump unit valve block 51, and includes a first pumping duct 21 and a second pumping duct 22 which are coaxially disposed and communicate with each other.

As shown in fig. 6, a cylinder mounting hole 511 is opened on the surface of the pump unit valve block 51 facing the cylinder valve cover 53, the cylinder 41 is mounted in the cylinder mounting hole 511, a driving sliding slot 411 coaxial with the cylinder mounting hole 511 is opened in the cylinder 41, the driving sliding slot 411 penetrates through the joint of the cylinder valve cover 53 and the pump unit valve block 51 in the direction of the cylinder valve cover 53 to form an oil inlet 412, and the oil inlet 412 is communicated with the driving oil channel 54. The other end of the driving chute 411 extends in a direction back to the cylinder valve cover 53 and is communicated with the first pumping pipeline 21, and the driving piston 42 is connected in the driving chute 411 and the first pumping pipeline 21 in a sliding manner.

As shown in fig. 6 and 7, one end of the second pumping duct 22 is connected to one end of the first pumping duct 21 away from the driving chute 411, and the other end penetrates the pump unit valve block 51 along the length direction of the pump body 1.

As shown in fig. 7 and 8, a piston sleeve 6 is installed in one end of the second pumping pipe 22 far from the first pumping pipe 21, the piston sleeve 6 includes an oil inlet and outlet sleeve 61, an oil suction sleeve 62 and an installation sleeve 63 which are coaxially connected in sequence along a direction from the first pumping pipe 21 to the second pumping pipe 22, a first thread is provided on an inner wall of the second pumping pipe 22 penetrating through the pump unit valve block 51, a second thread 631 matching with the first thread is provided on an outer wall of the installation sleeve 63, the installation sleeve 63 is installed by matching of the first thread and the second thread 631, an outer diameter of the oil inlet and outlet sleeve 61 is smaller than an outer diameter of the oil suction sleeve 62, so as to form a second step 64, an inner diameter of the oil inlet and outlet sleeve 61 is the same as that of the oil suction sleeve 62, an outer diameter of the oil suction sleeve 62 is smaller than that of the installation sleeve 63, an inner diameter of the installation sleeve 63 is larger than that of the oil suction sleeve 62, an interference conical surface 65 is provided at a connection position of the inner wall of the installation sleeve 63 and the inner wall of the oil suction sleeve 62, the end of the mounting sleeve 63 remote from the oil suction sleeve 62 is provided with a lubricating oil outlet 66.

The oil inlet and outlet sleeve 61 and the oil suction sleeve 62 are located above the communication port 12, an oil suction hole 621 penetrating through the side wall of the oil suction sleeve 62 is formed in the inner wall of the oil suction sleeve 62, a pumping cavity is formed in the bottom surface of the pump unit valve block 51, and the pumping cavity is communicated with the communication port 12, so that the oil suction hole 621 is communicated with the oil storage cavity 11 in the pump body 1.

The end of the rod 331 of the oil suction piston 33 away from the abutting head 332 slides in the oil inlet and outlet sleeve 61 and the oil suction sleeve 62. The other end of the rod portion 331 penetrates the first pumping duct 21, and the interference head 332 is integrally and coaxially disposed on a portion of the rod portion 331 penetrating the first pumping duct 21. The abutting head 332 is pushed by the driving piston 42, so that the rod 331 is driven to move toward the oil suction hole 621, a sealing sleeve 34 for sealing the first pumping passage 21 and the rod 331 is installed on a portion of the rod 331 located between the first pumping passage 21 and the driving piston 42, and the sealing sleeve 34 is a rubber sleeve.

As shown in fig. 8 and 9, the check valve 32 includes a holding spring 321, a valve seat 322, a check plug 323 and an adjusting screw plug 324, the adjusting screw plug 324 is screwed into the installation sleeve 63, a sleeve hole 3241 coaxial with the installation sleeve 63 is formed at the top end of the adjusting screw plug 324, an oil outlet hole 3242 coaxial with the sleeve hole 3241 for allowing the lubricating oil to flow out when the check valve 32 is conducted is formed at the bottom end of the adjusting screw plug 324, one end of the holding spring 321 abuts against the bottom surface of the sleeve hole 3241, the valve seat 322 is sleeved at the other end of the holding spring 321, a valve rod hole 3221 penetrating through the two ends of the valve seat 322 and coaxial with the installation sleeve 63 is formed on the valve seat 322, a vertical valve rod 325 slides in the valve rod hole 3221, the check plug 323 is integrally arranged at the top end of the valve rod 325 and extends upwards into the oil outlet sleeve 61, the outer wall of the check plug 323 has a driving conical surface 3231 matched with the conical surface 65, the inclination degree of the driving conical surface 3231 is greater than that abuts against the conical surface 3265, the valve stem 325 is sleeved with a sealing ring 326, and the sealing ring 326 is located between the one-way plug 323 and the top surface of the valve seat 322 and is used for separating the oil inlet/outlet sleeve 61 and the installation sleeve 63 when the abutting spring 321 abuts against the driving conical surface 3231 on the abutting conical surface 65.

When the end of the rod 331 away from the abutting head 332 is located at the side of the oil suction hole 621 facing the oil outlet sleeve and moves towards the abutting head 332, the lubricating oil in the oil storage chamber 11 is sucked into the oil suction sleeve 62; when the end of the rod 331 away from the abutting contact 332 is located on the side of the oil suction hole 621 facing away from the oil suction sleeve 62 and moves toward the direction of the mounting sleeve 63, the oil in the oil suction sleeve 62 is pumped out.

The implementation principle of the lubricating pump in the embodiment of the application is as follows:

when the oil-sucking device is used, a driving oil pipeline providing driving force is connected to the oil supply port 531, the driving oil enters the oil cylinder 41 along the second driving oil channel 542, the second driving oil channel 542 and the oil inlet 412, the driving piston 42 is pushed to move towards the one-way valve 32 along the driving chute 411, when the driving oil moves, the driving oil abuts against the abutting head 332 of the oil-sucking piston 33 and pushes the rod part 331 of the oil-sucking piston 33 to move towards the one-way valve 32, in the process, the return spring 31 contracts, when the rod part 331 moves through the oil-sucking hole 621, the oil pressure between the rod part 331 and the one-way valve 32 is increased due to compression, acting force is generated on the one-way plug 323, the abutting spring 321 contracts, a gap is generated between the one-way plug 323 and the inner wall of the mounting sleeve 63, the one-way valve 32 is communicated, and the lubricating oil passes through the one-way valve 32 and is pumped out through the lubricating oil outlet 66.

After the lubricating oil is pumped out, the supply of the driving oil is stopped, the return spring 31 is gradually reset, the oil suction piston 33 is dragged to move reversely, and the oil cylinder 41 is reset. When the lever portion 331 moves to a side of the oil suction hole 621 facing away from the check valve 32, a negative pressure is generated and the oil suction hole 621 sucks the lubricating oil. When the driving oil is supplied in sequence again, the last action and movement are repeated, and the reciprocating circulation is realized, so that the continuous oil supply is realized.

Lubricating oil is stored in the oil storage cavity 11 above the oil pressing plate 111, the oil pressing plate 111 rises along with the pumping of the lubricating oil, when the oil pressing plate 111 abuts against the abutting end 721 of the indicating rod 72 above, the supporting spring 73 contracts, the indicating rod 72 moves upwards, the indicating section of the indicating rod 72 moves to the position of the observation groove 7131, and a worker can know that the lubricating oil in the oil storage cavity 11 is insufficient through the penetrating and extending indicating end 722 and timely supplements the lubricating oil.

On the other hand, when the oil pressing plate 111 is at a lower position, the oil pressing plate 111 abuts against the abutting end 721 of the indicating rod 72 mounted on the bottom surface of the pump body 1, the supporting spring 73 is in a contracted state, and the bottom end of the indicating end 722 is located at the position of the observing groove 7131, so that a worker can know that the lubricating oil in the oil storage chamber 11 is in a full state by observing the indicating end 722.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. An oil level indicating device characterized in that: including sleeve (71), indicator lever (72), supporting spring (73) and sealing member (74), indicator lever (72) slide and set up in sleeve (71), be provided with bulge loop (723) on indicator lever (72), supporting spring (73) cover is located indicator lever (72) and one end is inconsistent with bulge loop (723), and the supporting spring (73) other end is inconsistent with sleeve (71), the both ends of indicator lever (72) are conflict end (721) and indication end (722) respectively, and conflict end (721) stretch out sleeve (71) and be used for pressing oil board (111) of lubricating pump inconsistent, and indication end (722) are located sleeve (71), and stretch out sleeve (71) when pressing oil board (111) conflict indicator lever (72), sealing member (74) set up and are used for preventing to leak lubricating oil between indicator lever (72) and sleeve (71).

2. An oil level indicating device according to claim 1, wherein: the inner wall of the sleeve (71) is provided with a supporting ring (711), and the supporting spring (73) is abutted to the supporting ring (711) so as to be abutted to the sleeve (71).

3. A fuel level indicating device (7) according to claim 2, characterized in that: the indicating rod (72) is in threaded connection with a threaded plug (724), and the threaded plug (724) is located on one side, back to the abutting end (721), of the supporting ring (711).

4. An oil level indicating device according to claim 1, wherein: the outer wall of the sleeve (71) is provided with an installation part (712), and the outer wall of the installation part (712) is provided with an installation screw (7121) and a nut part (7122) which is convenient for screwing the installation part (712).

5. An oil level indicating device according to claim 1, wherein: one end of the sleeve (71) is provided with a limiting cylinder (713), the limiting cylinder (713) is sleeved outside the indicating end (722), the outer side wall of the limiting cylinder (713) is provided with an observation groove (7131) penetrating through the side wall of the limiting cylinder (713), and the end part, far away from the contact end (721), of the limiting cylinder (713) is provided with a limiting cover (7132).

6. An oil level indicating device according to claim 5, wherein: one end of the limiting cylinder (713) is provided with a mounting stud (714), and the limiting cylinder is connected into the sleeve (71) through the mounting stud (714) in a threaded mode.

7. An oil level indicating device according to claim 6, wherein: the seal (74) includes a sealing washer located on a side of the mounting stud (714) facing the abutment end (721).

8. A lubrication pump, characterized by: including the pump body (1), oil storage chamber (11), pumping unit and according to claim 1 oil level indicating device (7), oil storage chamber (11) is seted up in the pump body (1), pumping unit sets up on the pump body (1), is provided with on the pumping unit and supplies oil mouth (531), oil absorption hole (621) and lubricating oil export (66), supply oil mouth (531) to be used for being connected with driving oil pipeline, oil absorption hole (621) are connected with oil storage chamber (11), lubricating oil export (66) are used for being connected with lubricating oil outlet pipeline, be provided with vertical guide arm (112) in oil storage chamber (11), sliding connection has pressure oil board (111) on vertical guide arm (112), pressure oil board (111) are separated into upper and lower two pump inner spaces with oil storage chamber (11), one of them pump inner space is used for storing lubricating oil, oil absorption hole (621) are linked together with the pump inner space of storing lubricating oil, the oil level indicating device (7) is disposed in the pump inner space below and/or the pump inner space above, and the interference end (721) is located in the installed pump inner space.

9. The lubrication pump of claim 8, wherein: the pumping unit comprises a pumping pipeline (2) arranged in a pumping unit mounting block (5), an oil suction assembly (3) and an oil delivery assembly (4), wherein the oil suction assembly (3) and the oil delivery assembly (4) are arranged in the pumping pipeline (2), one end of the pumping pipeline (2) is provided with a lubricating oil outlet (66), the other end of the pumping pipeline is connected with an oil supply port (531) so as to provide driving oil for the oil suction assembly (3) and the oil delivery assembly (4), the oil delivery assembly (4) is used for pumping out lubricating oil sucked in the pumping pipeline (2) from the lubricating oil outlet (66) under the action of the driving oil, and the oil suction assembly (3) is used for sucking the lubricating oil from an oil suction hole (621) after the lubricating oil is pumped out by the oil delivery assembly (4).

10. The lubrication pump of claim 9, wherein: the pumping units are provided with a plurality of groups.

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