CN217542290U

CN217542290U - Airtight frock of oil pump body

Info

Publication number: CN217542290U
Application number: CN202220413968.7U
Authority: CN
Inventors: 艾庆
Original assignee: Chengdu Si Ruike Machinery Co ltd
Current assignee: Chengdu Si Ruike Machinery Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-10-04
Anticipated expiration: 2032-02-28

Abstract

The utility model relates to an airtight detection technical field specifically discloses an airtight frock of oil pump body, include anchor clamps board down, go up anchor clamps board, the airtight seat of pump body and slide bar, the anchor clamps board passes through slide bar connection with last anchor clamps board down, the slide bar is provided with threely at least, the airtight seat of pump body sets up down on the anchor clamps board, the bottom of going up the anchor clamps board is provided with a plurality of pressure bar assemblies, be provided with two cylinder mounting panels, every down on the anchor clamps board all be provided with the cylinder on the cylinder mounting panel, the one end of the piston rod of cylinder is provided with sealed piece. The utility model has the advantages that compact structure, clamping are convenient.

Description

Airtight frock of oil pump body

Technical Field

The utility model relates to an airtight detection device technical field, especially an airtight frock of oil pump body.

Background

The pump bodies such as a brake master cylinder, a brake slave cylinder, a clutch master cylinder and the like are arranged in the daily automobile, and the pump bodies act through a gas or liquid medium, so that the air tightness of the pump bodies is guaranteed to be particularly important, and accidents are easily caused by insufficient air tightness of the pump bodies.

In the process of detecting the air tightness of the pump body, the pump body needs to be fixed, the pump air pipe is installed at the shaft end of the air cylinder, the air cylinder is made into a detection air cylinder, and then the pump air pipe is tightly pressed at the port of an oil (air) path of the pump body through the shaft of the air cylinder to detect the air tightness.

In the prior art, a fixed pump body needs to be fixed by a plurality of cylinders or hydraulic cylinders, and is easy to crush.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an airtight frock of oil pump body.

The purpose of the utility model is realized through the following technical scheme: the utility model provides an airtight frock of oil pump body, includes anchor clamps board, last anchor clamps board, the airtight seat of pump body and slide bar down, the anchor clamps board passes through sliding rod connection with last anchor clamps board down, the slide bar is provided with threely at least, the airtight seat of pump body sets up down on the anchor clamps board, the bottom of going up the anchor clamps board is provided with a plurality of depression bar subassemblies, be provided with two cylinder mounting panels down on the anchor clamps board, every all be provided with the cylinder on the cylinder mounting panel, the one end of the piston rod of cylinder is provided with sealed piece.

Specifically, the slide bar include outer slide bar and interior slide bar, outer slide bar is provided with the slide opening, the one end of interior slide bar slides and sets up in the slide opening, the bottom of outer slide bar is fixed on the anchor clamps board down, the one end of interior slide bar is fixed on the last anchor clamps board, the outside cover of slide bar is equipped with the spring, the both ends of spring butt respectively is on anchor clamps board and last anchor clamps board down.

Specifically, the top of the pump body airtight seat is provided with at least two positioning pins.

Specifically, a limiting rod is arranged in a sliding hole of the outer sliding rod.

Specifically, an annular groove is formed in the end face of the sealing block, and a sealing ring is arranged in the annular groove.

Specifically, the depression bar subassembly includes depression bar outer sliding sleeve, depression bar and rectangular spring, the one end of depression bar outer sliding sleeve is fixed go up on the anchor clamps board, depression bar outer sliding sleeve in be provided with the shoulder hole, depression bar one end be provided with the round bar, the round bar with the path section sliding connection of shoulder hole, the one end of round bar is provided with the internal thread, the round bar is through an internal and external screw thread connection fastening bolt, it is used for spacingly to be provided with the separation blade between fastening bolt and the round bar, the diameter of separation blade is greater than the diameter of shoulder hole path section, the rectangular spring cover is established on the round bar, the both ends of rectangular spring butt respectively on the terminal surface of depression bar outer sliding sleeve and the terminal surface of round bar and depression bar junction.

Specifically, a copper pressure head is arranged at one end of the pressure rod.

Specifically, be provided with a shaft Kong Zhang tight seat on the airtight seat of pump body, be provided with a mounting hole in the tight seat of shaft hole inflation, the mounting hole is the shoulder hole, and its both ends are big footpath section, and the centre is the path section, still including the tight head that expands, the tight head that expands is the shoulder shaft, its one end and the path section sliding connection of mounting hole, the tight head that expands step with the shoulder hole step adaptation of the tight seat of shaft hole inflation, it is provided with the O shape sealing washer to expand between the step terminal surface of tight head and the terminal surface of the tight seat of shaft hole inflation.

Specifically, the end face of the expansion head step and the end face of the shaft hole expansion seat are obliquely arranged.

Specifically, one end threaded connection of the expansion head has a limiting bolt, and the limiting bolt is matched with the stepped hole to limit the expansion head.

The utility model has the advantages of it is following:

1. the utility model discloses a lower anchor clamps board and last anchor clamps board pass through sliding rod connection, just can drive the anchor clamps board through a cylinder or pneumatic cylinder and push down, can carry out the clamping to a plurality of positions of the oil pump body through setting up a plurality of depression bar subassemblies on last anchor clamps board, can practice thrift the quantity of cylinder like this, and the clamping is stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the tool of the present invention;

FIG. 2 is a schematic view of the slide bar structure of the present invention;

FIG. 3 is a schematic structural view of the compression bar assembly of the present invention;

FIG. 4 is a schematic view of the connection relationship between the expansion head and the shaft hole expansion seat of the present invention;

in the figure: 1-lower clamp plate, 2-upper clamp plate, 3-sliding rod, 31-outer sliding rod, 32-inner sliding rod, 33-sliding hole, 34-limiting rod, 4-spring, 5-pump body airtight seat, 6-air cylinder mounting plate, 7-air cylinder, 8-pressure rod assembly, 81-pressure rod outer sliding sleeve, 82-pressure rod, 821-round rod, 83-rectangular spring, 84-fastening bolt, 85-blocking piece, 86-copper pressure head, 87-, 9-positioning pin, 10-sealing block, 11-shaft hole expansion seat, 12-expansion head, 13-limiting bolt, 14-O-shaped sealing ring and 15-sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-4, an airtight frock of oil pump body, includes anchor clamps board 1 down, goes up anchor clamps board 2, the airtight seat 5 of pump body and slide bar 3, anchor clamps board 1 passes through with last anchor clamps board 2 down slide bar 3 is connected, slide bar 3 is provided with threely at least, the airtight seat 5 of pump body sets up down on the anchor clamps board 1, the bottom of going up anchor clamps board 2 is provided with a plurality of depression bar subassemblies 8, be provided with two cylinder mounting panels 6 down on the anchor clamps board 1, every all be provided with cylinder 7 on the cylinder mounting panel 6, the one end of the piston rod of cylinder 7 is provided with seal block 10. The airtight tool is used for sealing and testing an oil pump body, when the airtight tool is used, the upper clamp plate 2 presses down the pressure rod assembly 8 to press the oil pump body, the oil pump body is placed on the pump body airtight seat 5, the upper surface of the pump body airtight seat 5 is provided with a sealing groove, a sealing rubber ring is installed in the sealing groove, the end surface of the oil pump body is attached to the upper surface of the pump body airtight seat 5, the sealing rubber ring is positioned between the end surface of the oil pump body and the upper surface of the pump body airtight seat 5, the sealing between the end surface of the oil pump body and the upper surface of the pump body airtight seat 5 is realized through the extrusion of the oil pump body, the upper clamp plate 2 can be driven to press down through an air cylinder or a hydraulic cylinder, the lower clamp plate 1 moves axially along the slide rod 3 when pressed down, the upper clamp plate 2 drives the plurality of pressure rod assemblies 8 to press down together when pressed down, the bottom of a plurality of pressure bar components 8 is pressed at different positions of the oil pump body to clamp the oil pump body, the oil pump body is also provided with an oil inlet and a pressure limiting valve hole, in the embodiment, a cylinder mounting plate 6 is arranged on a lower clamp plate 1, a cylinder 7 is arranged through the cylinder mounting plate 6, one end of a piston rod of the cylinder 7 is provided with a sealing block 10, the sealing block 10 is blocked on the oil inlet and the pressure limiting valve hole by starting the cylinder 7 after the oil pump body is clamped in place, holes of the oil pump body are further sealed, the sealing of an inner cavity of the oil pump body is realized, an air inlet channel is arranged on an airtight seat 5 of the pump body, one end of the air inlet channel is communicated with a cavity formed by the oil pump body and the airtight seat 5 of the pump body, the other end of the air inlet channel is communicated with an air source through the cylinder, high-pressure air is introduced into the cavity through the air source after the oil pump body is mounted and fixed, and the air tightness of the oil pump body is detected through the air pressure in the cavity.

Further, the slide bar 3 include outer slide bar 31 and interior slide bar 32, outer slide bar 31 is provided with slide opening 33, the one end of interior slide bar 32 slides and sets up in the slide opening 33, the bottom of outer slide bar 31 is fixed on the anchor clamps board 1 down, the one end of interior slide bar 32 is fixed on last anchor clamps board 2, the outside cover of slide bar 3 is equipped with spring 4, the both ends of spring 4 butt respectively on lower anchor clamps board 1 and last anchor clamps board 2. In this embodiment, the sliding rod 3 is a telescopic structure, the bottom of the outer sliding rod 31 is provided with a mounting seat, the mounting seat is fixed on the lower clamp plate 1 through bolts, a through hole is formed in the lower clamp plate 1, the bottom of the mounting seat is provided with a circular truncated cone, and the circular truncated cone of the mounting seat is arranged in the through hole, so that the connection between the outer sliding rod 31 and the lower clamp plate 1 is more stable, deformation of a connection part in the process of pressing down the upper clamp plate 2 is prevented, a sliding hole 33 is formed in the outer sliding rod 31, and the lower end of the inner sliding rod 32 is slidably connected with the sliding hole 33, so that the inner sliding rod 3 is driven to slide along the sliding hole 33 when the upper clamp plate 2 is pressed down, so that the sliding rod 3 can be stretched and contracted, the spring 4 is sleeved outside the sliding rod 3, the spring 4 is compressed in the process of pressing down the upper clamp plate 2, the air cylinder or the hydraulic cylinder is retracted after air tightness detection is completed, and the upper clamp plate 2 is lifted under the restoring force of the spring 4, and the compression rod assembly 8 releases the oil pump, so that the oil pump body can be replaced by the oil pump.

Furthermore, the top of the pump body airtight seat 5 is provided with at least two positioning pins 9. In the implementation, two positioning pins 9 are arranged on the pump body airtight seat 5, and the oil pump body is positioned by matching the positioning pins 9 with holes on the oil pump body, so that the cylinder 7 can drive the sealing block 10 to block the oil inlet and the pressure limiting valve hole.

Further, a limiting rod 34 is arranged in the sliding hole 33 of the outer sliding rod 31. In the embodiment, the limiting rod 34 is connected with the sliding hole 33 in an internal thread mode, and the moving distance of the inner sliding rod 32 is limited through the limiting rod 34, so that the downward pressing distance of the upper clamp plate 2 can be limited, the clamping force on the oil pump body is guaranteed, and the oil pump body is prevented from being pressed and deformed.

Furthermore, an annular groove is arranged on the end face of the sealing block 10, and a sealing ring 15 is arranged in the annular groove. The sealing block 10 is pressed on the end faces of the oil inlet and the pressure limiting valve hole of the oil pump body to extrude and deform the sealing ring 15, so that the sealing effect is enhanced.

Further, the pressure lever assembly 8 includes a pressure lever outer sliding sleeve 81, a pressure lever 82 and a rectangular spring 83, one end of the pressure lever outer sliding sleeve 81 is fixed on the upper clamp plate 2, a stepped hole is formed in the pressure lever outer sliding sleeve 81, one end of the pressure lever 82 is provided with a round lever 821, the round lever 821 is slidably connected with the small-diameter section of the stepped hole, one end of the round lever 821 is provided with an internal thread, the round lever 821 is connected with a fastening bolt 84 through the internal and external threads, a blocking piece 85 is arranged between the fastening bolt 84 and the end face of the round lever 821 for limiting, the diameter of the blocking piece 85 is larger than that of the small-diameter section of the stepped hole, the rectangular spring 83 is sleeved on the round lever 821, and two ends of the rectangular spring 83 are respectively abutted against the end face of the pressure lever outer sliding sleeve 81 and the end face of the connection between the round lever 821 and the pressure lever 82. In this embodiment, a stepped hole is formed in the pressure lever outer sliding sleeve 81, a round lever 821 at one end of a pressure lever 82 can slide along the stepped hole, the pressure lever 82 can slide along the stepped hole when an upper clamp plate 2 drives the pressure lever assembly to press on the oil pump body, and at the moment, a rectangular spring 83 is compressed, so that elastic clamping is formed on the oil pump body in such a way, and the oil pump body is prevented from being extruded and deformed due to overlarge pressing force.

Further, a copper pressure head 86 is arranged at one end of the pressure rod 82. In the embodiment, the threaded hole is formed in the end face of the bottom end of the pressing rod 82, the copper pressure head 86 is in threaded connection with the pressing rod 82, the hardness of the copper pressure head 86 is low, the copper pressure head 86 directly abuts against the pump body of the oil pump when the pressing rod 82 presses downwards, and the hardness of the copper pressure head 86 is low, so that the pump body of the oil pump cannot be damaged by pressure.

Further, be provided with a Kong Zhang tight seat 11 on the pump body gas tight seat 5, be provided with a mounting hole in the shaft hole bloated tight seat 11, the mounting hole is the shoulder hole, and its both ends are the major diameter section, and the centre is the path section, still including bloating tight head 12, bloated tight head 12 is the shoulder shaft, and its one end and the path section sliding connection of mounting hole, bloated tight head 12 the step with the shaft hole bloated tight seat 11 the shoulder hole step adaptation, it is provided with O shape sealing washer 14 to expand between tight head 12's the step terminal surface and the shaft hole bloated tight seat 11's the terminal surface. In this embodiment, an axial Kong Zhang tightening seat 11 is arranged on the pump body airtight seat 5, an expansion head 12 is arranged on the axial hole expansion seat 11 in a sliding manner, the axial hole on the oil pump body is plugged by the expansion head 12, the expansion head 12 can slide along the mounting hole, the maximum outer diameter of the expansion head 12 is the same as the minimum outer diameter of the axial hole expansion seat 11, the minimum outer diameter ends of the expansion head 12 and the axial hole expansion seat 11 extend into the axial hole of the oil pump body when the oil pump body is mounted, and the axial hole is sealed by an O-shaped sealing ring 14 arranged between the expansion head 12 and the axial hole expansion seat 11.

Furthermore, the step end face of the expansion head 12 and the end face of the shaft hole expansion seat 11 are both obliquely arranged.

Furthermore, one end of the expansion head 12 is connected with a limit bolt 13 through threads, and the limit bolt 13 is matched with the stepped hole to limit the expansion head 12. Through the one end threaded connection stop bolt 13 at tight head 12 expands, stop bolt 13 carries on spacingly with the step cooperation of shoulder hole to the tight head 12 that expands, because O shape sealing washer 14 is connected closely with the shaft hole, and tight head 12 and shoulder hole sliding connection expand, will expand tight head 12 through O shape sealing washer 14 like this and break away from the tight seat 11 that expands in the shaft hole when the oil pump body takes out, consequently this embodiment sets up stop bolt 13 in the one end of tight head 12 that expands and comes to carry on spacingly to tight head 12 that expands, break away from the tight seat 11 that expands in the shaft hole when preventing that the oil pump body from dismantling.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides an airtight frock of oil pump body which characterized in that: including anchor clamps board (1), last anchor clamps board (2), the airtight seat of pump body (5) and slide bar (3) down, anchor clamps board (1) passes through with last anchor clamps board (2) slide bar (3) are connected, slide bar (3) are provided with three at least, pump body airtight seat (5) set up down on anchor clamps board (1), the bottom of going up anchor clamps board (2) is provided with a plurality of depression bar subassemblies (8), be provided with two cylinder mounting panels (6) down on anchor clamps board (1), every all be provided with cylinder (7) on cylinder mounting panel (6), the one end of the piston rod of cylinder (7) is provided with sealed piece (10).

2. The oil pump body airtight tool according to claim 1, characterized in that: slide bar (3) including outer slide bar (31) and interior slide bar (32), outer slide bar (31) are provided with slide opening (33), the one end of interior slide bar (32) slides and sets up in slide opening (33), the bottom of outer slide bar (31) is fixed on anchor clamps board (1) down, the one end of interior slide bar (32) is fixed go up anchor clamps board (2) are last, the outside cover of slide bar (3) is equipped with spring (4), the both ends of spring (4) butt respectively is on anchor clamps board (1) and last anchor clamps board (2) down.

3. The oil pump body airtight tool according to claim 1, characterized in that: the top of the pump body airtight seat (5) is provided with at least two positioning pins (9).

4. The oil pump body airtight tool according to claim 2, characterized in that: and a limiting rod (34) is arranged in the sliding hole (33) of the outer sliding rod (31).

5. The oil pump body airtight tool according to claim 1, characterized in that: an annular groove is formed in the end face of the sealing block (10), and a sealing ring (15) is arranged in the annular groove.

6. The oil pump body airtight tool according to claim 1, characterized in that: the pressing rod assembly (8) comprises a pressing rod outer sliding sleeve (81), a pressing rod (82) and a rectangular spring (83), one end of the pressing rod outer sliding sleeve (81) is fixed to the upper clamp plate (2), a stepped hole is formed in the pressing rod outer sliding sleeve (81), a round rod (821) is arranged at one end of the pressing rod (82), the round rod (821) is in sliding connection with the small-diameter section of the stepped hole, an internal thread is arranged at one end of the round rod (821), the round rod (821) is in threaded connection with a fastening bolt (84) through the internal thread and the external thread, a blocking piece (85) is arranged between the fastening bolt (84) and the end face of the round rod (821) and used for limiting, the diameter of the blocking piece (85) is larger than that of the small-diameter section of the stepped hole, the rectangular spring (83) is sleeved on the round rod (821), and two ends of the rectangular spring (83) abut against the end face of the pressing rod outer sliding sleeve (81) and the end face of the joint of the round rod (821) and the pressing rod (82) respectively.

7. The oil pump body airtight tool according to claim 6, characterized in that: one end of the pressure lever (82) is provided with a copper pressure head (86).

8. The oil pump body airtight tool according to claim 1, characterized in that: be provided with one axle Kong Zhang tight seat (11) on pump body gas tight seat (5), the shaft hole expands and is provided with a mounting hole in tight seat (11), the mounting hole is the shoulder hole, and its both ends are big footpath section, and the centre is the path section, still including expanding tight head (12), it is the shoulder shaft to expand tight head (12), its one end and the path section sliding connection of mounting hole, expand the step of tight head (12) with the shoulder hole step adaptation of tight seat (11) is expanded in the shaft hole, it is provided with O shape sealing washer (14) to expand between the step terminal surface of tight head (12) and the terminal surface of the tight seat (11) of shaft hole.

9. The airtight frock of oil pump body of claim 8, characterized in that: the step end face of the expansion head (12) and the end face of the shaft hole expansion seat (11) are obliquely arranged.

10. The oil pump body airtight tool according to claim 8, characterized in that: one end threaded connection of head (12) expands has spacing bolt (13), spacing bolt (13) and shoulder hole cooperation are spacing to expanding head (12).