CN215706716U

CN215706716U - Pull rod reversing type manual hydraulic oil pump

Info

Publication number: CN215706716U
Application number: CN202121725089.XU
Authority: CN
Inventors: 郭云; 周乔
Original assignee: Jingzhou Jiuyang Automobile Parts Co ltd
Current assignee: Jingzhou Jiuyang Automobile Parts Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-01
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a pull rod reversing type manual hydraulic oil pump which is fixedly arranged in a locomotive head base shell and comprises an oil containing shell, a pump body and a reversing valve core, wherein the head part of the reversing valve core penetrates out of the pump body; the pull rod is hinged with the top end of the connecting rod; the headstock base shell is provided with a window, and the position of the window corresponds to the position of the pull rod. In the pull rod reversing type manual hydraulic oil pump, the head of the reversing valve core is sequentially connected with the connecting rod and the pull rod, so that the pull rod can be directly pulled or pushed at the window when the reversing valve core is adjusted, an arm does not need to stretch into the window, the use is very convenient, the problem of arm scratch caused by the fact that the arm stretches into the window is avoided, and the safety protection performance is higher.

Description

Pull rod reversing type manual hydraulic oil pump

Technical Field

The utility model relates to the technical field of reversing pumps, in particular to a pull rod reversing type manual hydraulic oil pump.

Background

The oil pump plays a hydraulic driving role in the vehicle head lifting system, hydraulic oil is pressurized and injected into the oil cylinder, and the oil cylinder extends or shortens after being stressed to realize the overturning or falling of the cab. According to various motorcycle type overall arrangements, the mounted position of manual hydraulic oil pump is also diverse, and for convenient operation, the customer generally installs manual hydraulic oil pump in locomotive wheel fender rear, has enough space convenient operation.

The patent application No. 202021615217.0 discloses a cab with rollover protection, comprising an oil pump for powering cab rollover, a reversing valve connected to the oil pump, and a protection system; the reversing valve is connected with a control handle. The patent (201921651237.0) discloses a cab-roll unlocking system including a cab-roll device for rolling over the cab and a front panel lock, the cab-roll device including an oil pump and a reversing handle for operating the oil pump. Above-mentioned two patent schemes, all operate the switching-over valve through installation control handle on the switching-over valve at the oil pump, nevertheless because partial motorcycle type is limited because of overall arrangement space, manual hydraulic oil pump usually can install in locomotive running-board inboard, when the switching-over operation, need stretch into the running-board hole with the hand and twist the switching-over valve, the space is narrow and small, is difficult for controlling control handle in order to carry out the switching-over operation to manual hydraulic oil pump switching-over case, still can produce risks such as card hand, fish tail hand when the operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provides a pull rod reversing type manual hydraulic oil pump, which solves the technical problem that in the prior art, a manual hydraulic oil pump in a cab lifting system is generally arranged behind a pedal plate of a vehicle head, and a control handle is inconvenient to operate so as to perform reversing operation on a reversing valve core of the manual hydraulic oil pump.

In order to achieve the technical purpose, the technical scheme of the utility model provides a pull rod reversing type manual hydraulic oil pump which is fixedly installed in a locomotive head base shell and comprises an oil containing shell, a pump body and a reversing valve core, wherein the head of the reversing valve core penetrates out of the pump body, and the pull rod reversing type manual hydraulic oil pump further comprises:

the bottom end of the connecting rod is fixedly connected with the head of the reversing valve core;

the pull rod is hinged with the top end of the connecting rod;

the headstock base shell is provided with a window, and the position of the window corresponds to the position of the pull rod.

Furthermore, a protection plate is detachably mounted at the window.

Furthermore, a supporting ring is fixedly installed on the pump body, the far end of the pull rod penetrates through the supporting ring, and the supporting ring is used for supporting and lifting the pull rod.

Furthermore, a handle is fixedly arranged on the pull rod.

Further, the handle is hook-shaped or ring-shaped.

Furthermore, a sleeve is fixedly installed at the head of the reversing valve core, and the connecting rod is fixedly connected with the sleeve.

Further, the connecting rod or the pull rod is L-shaped.

Furthermore, the pump body internalization is provided with manual plunger, movable mounting has the push type transmission shaft on the pump body, the push type transmission shaft with manual plunger transmission is connected.

Further, an inlet, an outlet and a flow passage are arranged in the pump body, and the inlet is communicated with the plunger cavity of the manual plunger sequentially through the flow passage and the outlet; a one-way valve assembly is further arranged in the flow passage.

Further, the pump body is further fixedly provided with a first oil pipe joint and a second oil pipe joint respectively, and the first oil pipe joint and the second oil pipe joint are communicated with the flow channel.

Compared with the prior art, the utility model has the beneficial effects that:

in the pull rod reversing type manual hydraulic oil pump, the head of the reversing valve core is sequentially connected with the connecting rod and the pull rod, so that the pull rod can be directly pulled or pushed at the window when the reversing valve core is adjusted, an arm does not need to stretch into the window, the use is very convenient, the problem of arm scratch caused by the fact that the arm stretches into the window is avoided, and the safety protection performance is higher.

Drawings

FIG. 1 is a schematic view of the installation position of a pull rod reversing type manual hydraulic oil pump on a locomotive base shell;

FIG. 2 is a left side view of a pull rod reverse type manual hydraulic oil pump provided by the present invention;

fig. 3 is a schematic diagram of a pull rod reversing type manual hydraulic oil pump provided by the utility model after a connecting rod and a pull rod are unfolded.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The utility model provides a pull rod reversing type manual hydraulic oil pump which is structurally shown in figures 1 and 2, is fixedly installed in a vehicle head base shell 1 and comprises an oil containing shell 2, a pump body 3 and a reversing valve core 4, wherein the head of the reversing valve core 4 penetrates out of the pump body 3, the pull rod reversing type manual hydraulic oil pump further comprises a connecting rod 5 and a pull rod 6, and the bottom end of the connecting rod 5 is fixedly connected with the head of the reversing valve core 4; the pull rod 6 is hinged with the top end of the connecting rod 5; the headstock base shell 1 is provided with a window 7, and the position of the window 7 corresponds to the position of the pull rod 6.

In the pull rod reversing type manual hydraulic oil pump, the connecting rod 5 and the pull rod 6 are sequentially connected to the head of the reversing valve core 4, so that the pull rod 6 can be directly pulled or pushed at the window 7 when the reversing valve core 4 is adjusted, an arm does not need to be stretched into the window 7, the use is very convenient, the problem of arm scratch caused after the arm is stretched into the window 7 is avoided, and the safety protection performance is higher.

As a preferred embodiment, the protective plate 8 is detachably mounted at the window 7, the protective plate 8 can be detached to pull the pull rod 6 in working, and the protective plate 8 can block the window 7 in a non-working state, so that the car body is more attractive.

As a preferred embodiment, a supporting ring 9 is fixedly installed on the pump body 3, the distal end of the pull rod 6 passes through the supporting ring 9, and the supporting ring 9 is used for supporting the pull rod 6, so that the pull rod 6 is always in a position convenient to pull.

In a preferred embodiment, a handle 11 is fixedly mounted on the pull rod 6. In a preferred embodiment, the handle 11 is hook-shaped or ring-shaped, so that the handle 11 can be pulled conveniently.

In a preferred embodiment, a sleeve 12 is fixedly mounted at the head of the direction changing valve core 4 to protect the direction changing valve core 4, and the connecting rod 5 is fixedly connected with the sleeve 12.

In a preferred embodiment, the connecting rod 5 or the pull rod 6 is L-shaped, so that the connecting rod 5 is horizontal when passing through the window 7, and the phenomenon that the pull rod 6 interferes with the window 7 to affect work during pulling is avoided, as shown in fig. 3. As a specific example, in this embodiment, the link 5 is L-shaped.

As a preferred embodiment, with reference to fig. 2, a manual plunger 13 is movably disposed in the pump body 3, and a pressing type transmission shaft 14 is movably mounted on the pump body 3, and the pressing type transmission shaft 14 is in transmission connection with the manual plunger 13.

As a preferred embodiment, an inlet 15, an outlet 16 and a flow passage 17 are arranged in the pump body 3, and the inlet 15 is communicated with the plunger cavity of the manual plunger 13 sequentially through the flow passage 17 and the outlet 16; a one-way valve assembly 18 is also disposed within the flow passage 17. The check valve assembly 18 is conventional in the art of manually reversible hydraulic pumps and therefore its specific construction and operation are not described in detail herein.

As a preferred embodiment, the pump body 3 is further fixedly provided with a first oil pipe joint 19 and a second oil pipe joint 20, respectively, the first oil pipe joint 19 and the second oil pipe joint 20 are both communicated with the flow passage 17, and the first oil pipe joint 19 and the second oil pipe joint 20 are both connected with an external hydraulic cylinder.

The working principle is as follows:

when a truck needs to lift a cab due to fault maintenance, the pull rod 6 is pulled to drive the sleeve 12 to rotate, the reversing valve core 4 is placed at a lifting station, the pressing type transmission shaft 14 is pressed to drive the manual plunger 13 to reciprocate up and down in the plunger cavity, low-pressure hydraulic oil in the oil containing shell 2 is sucked and pressurized through the up-and-down reciprocating motion of the manual plunger 13, then the hydraulic oil is discharged to an external hydraulic oil cylinder, and the cab is lifted to the highest position; when the cab falls back, the pull rod 6 is pulled again to drive the sleeve 12 to rotate, the reversing valve core 4 is placed at a descending station, and the steps are repeated until the cab falls to the lowest position.

According to the pull rod reversing type manual hydraulic oil pump provided by the embodiment of the utility model, the connecting rod 5 and the pull rod 6 are sequentially connected to the head part of the reversing valve core 4, when the reversing valve core 4 is adjusted, the conventional circular swing around the reversing valve core 4 is changed into the pseudo linear motion of the pull rod 6 parallel to the horizontal plane, the pull rod 6 can be directly pulled or pushed at the window 7 without extending an arm into the window 7, the use is very convenient, the ergonomic concept is well matched, the problem of arm scratch caused by the arm after the arm extends into the window 7 is avoided, and the safety protection performance is higher.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a manual hydraulic oil pump of pull rod switching-over formula, fixed mounting is inside locomotive basic shell, including flourishing oil shell, the pump body and switching-over case, the head of switching-over case is followed wear out in the pump body, its characterized in that, the manual hydraulic oil pump of pull rod switching-over formula still includes:

the pull rod is hinged with the top end of the connecting rod;

2. The pull-rod reversing type manual hydraulic oil pump according to claim 1, wherein a protection plate is detachably mounted at the window.

3. The pull rod reversing type manual hydraulic oil pump according to claim 1, wherein a supporting ring is fixedly mounted on the pump body, a distal end of the pull rod penetrates through the supporting ring, and the supporting ring is used for supporting the pull rod.

4. The pull-rod reversing type manual hydraulic oil pump according to claim 1, wherein a handle is fixedly mounted on the pull rod.

5. The pull-rod reversing type manual hydraulic oil pump according to claim 4, wherein the handle is hook-shaped or ring-shaped.

6. The pull rod reversing type manual hydraulic oil pump according to claim 1, wherein a sleeve is fixedly mounted at the head of the reversing valve core, and the connecting rod is fixedly connected with the sleeve.

7. The pull-rod reversing type manual hydraulic oil pump according to claim 1, wherein the connecting rod or the pull rod is L-shaped.

8. The pull rod reversing type manual hydraulic oil pump according to claim 1, wherein a manual plunger is movably arranged in the pump body, a pressing type transmission shaft is movably arranged on the pump body, and the pressing type transmission shaft is in transmission connection with the manual plunger.

9. The pull rod reversing type manual hydraulic oil pump according to claim 8, wherein an inlet, an outlet and a flow passage are arranged in the pump body, and the inlet is communicated with the plunger cavity of the manual plunger sequentially through the flow passage and the outlet; a one-way valve assembly is further arranged in the flow passage.

10. The pull-rod reversing type manual hydraulic oil pump according to claim 9, wherein the pump body is further fixedly provided with a first oil pipe joint and a second oil pipe joint respectively, and the first oil pipe joint and the second oil pipe joint are both communicated with the flow passage.