CN216715359U

CN216715359U - Stacked overflow valve buffer structure

Info

Publication number: CN216715359U
Application number: CN202123312457.0U
Authority: CN
Inventors: 赵万玉
Original assignee: Huai'an Tanner Hydraulic Machinery Co ltd
Current assignee: Huai'an Tanner Hydraulic Machinery Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-10
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a stacked overflow valve buffering structure, which belongs to the field of overflow valves and comprises a buffering spring, wherein bendable semicircular rings are arranged on the upper inner wall and the lower inner wall of a cavity of a valve body of the overflow valve, one end of each bendable semicircular ring is provided with a second valve body adapter, the upper end of each second valve body adapter is provided with a second annular groove, the other end of each bendable semicircular ring is provided with a first valve body adapter, the end surface of each first valve body adapter is provided with a first annular groove, and the valve body of the overflow valve is connected with the bendable semicircular rings through bolts and nuts. According to the stacked overflow valve buffer structure, the bendable semicircular ring, the first valve body adapter and the second valve body adapter are matched with the connecting holes of the inner cavity of the valve body of the overflow valve by pulling the bendable semicircular ring, so that the connecting holes of the inner cavity of the valve body of the overflow valve can be replaced to change the flexibility of the bendable semicircular ring, and a user can use the stacked overflow valve buffer structure conveniently according to actual conditions.

Description

Stacked overflow valve buffer structure

Technical Field

The utility model relates to the field of overflow valves, in particular to a buffer structure of a stacked overflow valve.

Background

In the slewing device of the existing mechanical equipment, a large number of hydraulic circuits with buffer functions are applied, such as an excavator slewing device, a crane slewing device, an overhead working truck slewing device, a manipulator slewing device, an agricultural and forestry mechanical slewing device and the like, wherein a buffer overflow valve is a key hydraulic element of the system, and the performance of the buffer overflow valve directly influences the performance of a host;

the Chinese utility model has the patent application number of CN201811218241.8, and the patent name is a buffer overflow valve, which comprises a valve body with an axial through hole; the valve sleeve is provided with a stepped through hole, the thread is connected to the lower end of the valve body, and a second oil port is formed in the side wall of the valve sleeve; the overflow valve core is arranged in the valve sleeve and can slide up and down, and a second through-flow hole, a mounting hole and an overflow valve port which are sequentially communicated and have gradually increased diameters are arranged in the overflow valve core from top to bottom; the buffer overflow valve is simple and reasonable in structure, convenient to machine and manufacture, low in cost and convenient to install, a buffer cavity is formed by arranging the buffer piston, when the slewing device brakes, the pressure of oil in the buffer cavity is low due to the fact that the buffer piston is pushed to move upwards at present, when the buffer piston stops moving, the pressure in the buffer cavity is gradually increased to be equal to the pressure of the first oil port, therefore, the upward resultant force action area of the overflow valve core is gradually reduced to the difference between the cross section area of the overflow valve port and the cross section area of the sliding section of the overflow valve core from the cross section area of the overflow valve port in the initial stage, the pressure of the first oil port is gradually increased to the second overflow pressure from the first overflow pressure, and the buffer effect is good;

during the use, because the valve body of the overflow valve of different specifications is inequality with buffer spring's junction trompil position, lead to buffer spring installed part to customize according to the valve body of the overflow valve of different specifications, increase the work load that the user installed.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a buffer structure of a stacked overflow valve, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a stacked overflow valve buffering structure comprises an overflow valve body, wherein an improved buffering device is arranged inside the overflow valve body and comprises a buffering spring, and the buffering spring is arranged in an inner cavity of the overflow valve body;

the improved buffer device further comprises a bendable semicircular ring, a first valve body adapter head, a first annular groove, a second valve body adapter head, a second annular groove, a bolt and a nut, wherein the upper inner wall and the lower inner wall of a cavity of the valve body of the overflow valve are provided with the bendable semicircular ring, each bendable semicircular ring is arranged at one end of the second valve body adapter head, the second annular groove is formed in the upper end of the second valve body adapter head, each bendable semicircular ring is arranged at the other end of the first valve body adapter head, the end face of the first valve body adapter head is provided with the first annular groove, and the valve body of the overflow valve is connected with the bendable semicircular ring through the bolt and the nut.

In a further preferred scheme of the utility model, the bendable semicircular ring, the first valve body adapter and the second valve body adapter are integrally arranged, and the bendable semicircular ring, the first valve body adapter and the second valve body adapter are semicircular;

in a further preferable scheme of the utility model, the first valve body adapter and the second valve body adapter are adapted to a valve body inner cavity of the overflow valve, and the joint of the valve body inner cavity of the overflow valve is aligned with the first annular groove or the second annular groove;

according to a further preferable scheme of the utility model, the bendable semicircular ring is fixedly welded with the buffer spring, and the buffer spring does not shield the first annular groove and the second annular groove;

according to a further preferable scheme of the utility model, the sections of the bendable semicircular ring, the first valve body adapter and the second valve body adapter are arranged in a T shape, and the joints of the bendable semicircular ring, the first valve body adapter and the second valve body adapter which are arranged in the T shape and the inner cavity of the valve body of the overflow valve are in slotted adaptation;

in a further preferred embodiment of the present invention, the nut fastens the bolt and the bendable semicircular ring, and the nut may be embedded in an annular groove formed in the first valve body adapter or the second valve body adapter.

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

according to the utility model, the bendable semicircular ring, the first valve body adapter and the second valve body adapter are pulled to enable the holes at the connecting parts of the bendable semicircular ring, the first valve body adapter and the second valve body adapter and the inner cavity of the valve body of the overflow valve to be matched, so that the connecting holes of the inner cavity of the valve body of the overflow valve can be replaced to change the flexibility of the bendable semicircular ring, and a user can use the flexible semicircular ring conveniently according to actual conditions.

Drawings

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

FIG. 2 is a schematic view of an improved cushioning device of the present invention;

FIG. 3 is an exploded view of a portion of the improved draft gear of the present invention;

fig. 4 is a schematic view of the bendable semi-circular ring and valve body adapter of the present invention.

In the figure: 1. a valve body of the overflow valve; 2. an improved buffer device; 201. a flexible semicircular ring; 202. a first valve body adapter; 203. a first annular groove; 204. a second valve body adapter; 205. a second annular groove; 206. a bolt; 207. a nut; 208. a buffer spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-4, a stacked overflow valve buffering structure comprises a valve body 1 of an overflow valve, an improved buffering device 2 is arranged inside the valve body 1 of the overflow valve, the improved buffering device 2 comprises a buffering spring 208, and a buffering spring 208 is arranged in an inner cavity of the valve body 1 of the overflow valve;

improved generation buffer 2 still includes flexible semicircle ring 201, first valve body adaptation head 202, first ring channel 203, second valve body adaptation head 204, second ring channel 205, bolt 206 and nut 207, inner wall department is equipped with flexible semicircle ring 201 about the cavity of the valve body 1 of overflow valve, the one end of every flexible semicircle ring 201 is equipped with second valve body adaptation head 204, second ring channel 205 has been seted up to the upper end of second valve body adaptation head 204, the other end of every flexible semicircle ring 201 is equipped with first valve body adaptation head 202, first ring channel 203 has been seted up to the terminal surface of first valve body adaptation head 202, valve body 1 of overflow valve passes through bolt 206 and nut 207 and is connected with flexible semicircle ring 201.

The flexible semicircular ring 201, the first valve body adapter 202 and the second valve body adapter 204 are integrally arranged, the flexible semicircular ring 201, the first valve body adapter 202 and the second valve body adapter 204 are semicircular, the first valve body adapter 202 and the second valve body adapter 204 are adapted to the inner cavity of the valve body 1 of the overflow valve, the joint of the inner cavity of the valve body 1 of the overflow valve is aligned with the first annular groove 203 or the second annular groove 205, the flexible semicircular ring 201 is welded and fixed with the buffer spring 208, and the buffer spring 208 does not shield the first annular groove 203 and the second annular groove 205;

the sections of the bendable semicircular ring 201, the first valve body adapter 202 and the second valve body adapter 204 are arranged in a T shape, the joints of the bendable semicircular ring 201, the first valve body adapter 202 and the second valve body adapter 204 which are arranged in the T shape and the inner cavity of the valve body 1 of the overflow valve are grooved and adapted, the nut 207 fastens the bolt 206 and the bendable semicircular ring 201, and the nut 207 can be embedded into an annular groove formed in the first valve body adapter 202 or the second valve body adapter 204; before the use, the upper end and the lower end of the buffer spring 208 are fixedly welded with the bendable semicircular ring 201, the bendable semicircular ring 201 is integrally arranged with the first valve body adapter 202 and the second valve body adapter 204, during installation, the bolt 206 is inserted in an aligned manner with an annular groove formed in the valve body adapter, the bolt 206 penetrates through the annular groove and then is sleeved with the nut 207, the nut 207 can be embedded into the annular groove, the nut 207 and the bolt 206 move along the annular groove, the bendable semicircular ring 201 pulls the first valve body adapter 202 and the second valve body adapter 204 to enable the first annular groove 203 of the first valve body adapter 202 to be aligned with a connecting part of an inner cavity of the valve body 1 of the overflow valve and form a hole, the bendable semicircular ring 201, the first valve body adapter 202 and the second valve body adapter 204 are matched with the connecting part of the inner cavity of the valve body 1 of the overflow valve by pulling the bendable semicircular ring 201, the connecting hole of the inner cavity of the valve body 1 of the overflow valve can be replaced to change the flexibility of the bendable semicircular ring 201, the user can use the device conveniently according to the actual situation.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a stack formula overflow valve buffer structure, includes valve body (1) of overflow valve, the inside of valve body (1) of overflow valve is equipped with improved generation buffer (2), and improved generation buffer (2) include buffer spring (208), the inner chamber of valve body (1) of overflow valve is equipped with buffer spring (208), its characterized in that: the improved buffer device (2) also comprises a bendable semicircular ring (201), a first valve body adapter (202), a first annular groove (203), a second valve body adapter (204), a second annular groove (205), a bolt (206) and a nut (207), the upper inner wall and the lower inner wall of a cavity of a valve body (1) of the overflow valve are provided with bendable semicircular rings (201), one end of each bendable semicircular ring (201) is provided with a second valve body adapter (204), a second annular groove (205) is arranged at the upper end of the second valve body adapter (204), a first valve body adapter (202) is arranged at the other end of each bendable semicircular ring (201), and the end surface of the first valve body adapter (202) is provided with a first annular groove (203), the valve body (1) of the overflow valve is connected with the bendable semicircular ring (201) through a bolt (206) and a nut (207).

2. The buffer structure of the overlapped overflow valve according to claim 1, characterized in that: the flexible semicircular ring (201), the first valve body adapter (202) and the second valve body adapter (204) are integrally arranged, and the flexible semicircular ring (201), the first valve body adapter (202) and the second valve body adapter (204) are semicircular.

3. The buffer structure of the overlapped overflow valve according to claim 2, characterized in that: the first valve body adapter (202) and the second valve body adapter (204) are adapted to the inner cavity of the valve body (1) of the overflow valve, and the joint of the inner cavity of the valve body (1) of the overflow valve is aligned with the first annular groove (203) or the second annular groove (205).

4. The buffer structure of the overlapped overflow valve according to claim 3, characterized in that: the bendable semicircular ring (201) is fixedly welded with the buffer spring (208), and the buffer spring (208) does not shield the first annular groove (203) and the second annular groove (205).

5. The buffer structure of the stacked overflow valve according to claim 1, characterized in that: the cross section of flexible semicircle ring (201), first valve body adaptation head (202) and second valve body adaptation head (204) is the T type setting, and flexible semicircle ring (201), first valve body adaptation head (202) and second valve body adaptation head (204) that the T type set up and the valve body (1) inner chamber junction fluting adaptation of overflow valve.

6. The buffer structure of the overlapped overflow valve according to claim 1, characterized in that: the nut (207) fastens the bolt (206) and the bendable semicircular ring (201), and the nut (207) can be embedded into an annular groove formed in the first valve body adapter (202) or the second valve body adapter (204).