CN220452366U - Speed-changing control valve - Google Patents

Speed-changing control valve Download PDF

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Publication number
CN220452366U
CN220452366U CN202322135604.4U CN202322135604U CN220452366U CN 220452366 U CN220452366 U CN 220452366U CN 202322135604 U CN202322135604 U CN 202322135604U CN 220452366 U CN220452366 U CN 220452366U
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CN
China
Prior art keywords
valve body
control valve
rod
base
locating pin
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Active
Application number
CN202322135604.4U
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Chinese (zh)
Inventor
丰致良
冯黎
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Weifang Zhiliang Hydraulic Machinery Co ltd
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Weifang Zhiliang Hydraulic Machinery Co ltd
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Priority to CN202322135604.4U priority Critical patent/CN220452366U/en
Application granted granted Critical
Publication of CN220452366U publication Critical patent/CN220452366U/en
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Abstract

The utility model discloses a speed-changing control valve, which belongs to the field of engineering machinery and comprises a valve body and a base for installing the valve body, wherein a plurality of installation feet are fixedly connected to two sides of the valve body, a positioning pin is inserted into the top of the installation feet, a locking groove is formed in one side of the positioning pin, a cavity is formed in the middle of the base, a plurality of positioning grooves are formed in two sides of the base, a bidirectional screw is rotatably installed in the cavity, a plurality of movable blocks are connected to the bidirectional screw in a threaded manner, connecting rods are hinged to two ends of the movable blocks, and a locking rod is hinged to one end of each connecting rod; through locating pin, locked groove, constant head tank, two-way screw rod, movable block, connecting rod and locking lever's setting, penetrate the locating pin in the installation foot stretches into the constant head tank, then only need rotatory knob can fix the valve body, when dismantling, only need pull out the locating pin behind the reverse rotation knob can to the dismouting of valve body has been made things convenient for.

Description

Speed-changing control valve
Technical Field
The utility model belongs to the technical field of engineering machinery, and particularly relates to a variable speed control valve.
Background
At present, the speed-changing control valve for the walking hydraulic system of the loader has the characteristics of small volume, compact structure, convenient maintenance and the like, and mainly comprises a valve body, an overflow valve core, a sliding block, a pressure-regulating spring, a brake valve rod, a distribution valve rod and the like, wherein the existing speed-changing control valve adopts an integral pressure-regulating structure.
The current chinese patent with bulletin number CN210371968U discloses a variable speed control valve, including valve body, air valve body, sealing head, fixing device, overflow core, decompression core, buffer spring, brake valve rod and distribution valve rod, valve body right side middle part and air valve body level grafting, valve body right side bottom is provided with the sealing head, valve body bottom left side and fixing device rotate to be connected, valve body top inboard left side is provided with the overflow core, overflow core right side is provided with the decompression core, decompression core right side end outside is provided with buffer spring, the air valve body left side is pegged graft with the brake valve rod, and brake valve rod top and decompression core peg graft, sealing head left side and distribution valve rod peg graft, and distribution valve rod top and brake valve rod peg graft, fixing device comprises connecting plate, draw-in groove, fixed knot, pivot, backup pad and bolt groove, connecting plate front end left and right side are provided with the draw-in groove, the draw-in groove bottom end is through pivot and backup pad rotation to be connected, the backup pad is provided with the back-up pad before the backup pad is inboard, the back is provided with the fixed knot, the adhesive sleeve is fixed with the fixed orifices is constituteed with the fixed knot, the adhesive sleeve is fixed with the bottom, the adhesive sleeve is fixed with the adhesive sleeve outside.
With respect to the related art as described above, the inventors found that there are at least the following problems in this technology: the valve body is installed by adopting a plurality of installation feet on two sides, when the valve body is installed, bolts are screwed into each installation foot to be fixed, each bolt is required to be screwed up for a plurality of times, and the valve body is very complicated to operate, so that the disassembly and assembly efficiency of the valve body is influenced.
Disclosure of Invention
The present utility model is directed to a shift control valve for solving the above-mentioned problems of the related art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a variable speed control valve, includes the valve body and is used for installing the base of valve body, the equal fixedly connected with of both sides of valve body has a plurality of installation feet, peg graft at the top of installation foot has the locating pin, the locking groove has been seted up to one side of locating pin, the cavity has been seted up at the middle part of base, a plurality of constant head tanks have all been seted up to the both sides of base, two-way screw rod is installed in the cavity rotation, threaded connection has a plurality of movable blocks on the two-way screw rod, the both ends of movable block all articulate there is the connecting rod, the one end of connecting rod articulates there is the locking rod.
As a preferred embodiment, a limiting block is arranged at the upper end of the positioning pin.
As a preferred embodiment, one end of the bidirectional screw rod is fixedly connected with a knob.
As a preferred embodiment, one end of the base is provided with a groove, and the knob is positioned in the groove.
As a preferable implementation mode, guide rods are fixedly connected to two sides of the bidirectional screw rod in the cavity, and the movable block is sleeved on the guide rods in a sliding mode.
As a preferable implementation mode, a sliding hole is formed between the positioning groove and the cavity, and the locking rod penetrates through the sliding hole in a sliding mode.
Compared with the prior art, the utility model has the beneficial effects that:
according to the speed-change control valve, through the arrangement of the locating pin, the locking groove, the locating groove, the bidirectional screw rod, the movable block, the connecting rod and the locking rod, the valve body is placed on the base when the valve body is installed, the locating pin penetrates into the installation foot to extend into the locating groove, then the bidirectional screw rod is rotated only by using the knob, the bidirectional screw rod drives the movable block to move, the movable block drives the locking rod to be inserted into the locking groove through the connecting rod, the valve body can be fixed by using the locating pin, and when the valve body is detached, the locating pin is pulled out after the knob is reversely rotated, so that the valve body is convenient to disassemble;
the speed-changing control valve can store and protect the rotary button through the groove, and avoid false touching.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a split structure of the present utility model;
fig. 3 is a schematic cross-sectional structure of the present utility model.
In the figure: 1. a valve body; 2. a base; 3. a mounting foot; 4. a positioning pin; 5. a locking groove; 6. a cavity; 7. a positioning groove; 8. a bidirectional screw; 9. a movable block; 10. a connecting rod; 11. a locking lever; 12. a limiting block; 13. a knob; 14. a groove; 15. a guide rod; 16. and a slide hole.
Detailed Description
The utility model is further described below with reference to examples.
The following examples are illustrative of the present utility model but are not intended to limit the scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple modifications of the method of the utility model under the premise of the conception of the utility model are all within the scope of the utility model as claimed.
Referring to fig. 1-3, the utility model provides a speed change operating valve, which comprises a valve body 1 and a base 2 for installing the valve body 1, wherein a plurality of installation legs 3 are fixedly connected to two sides of the valve body 1, a locating pin 4 is inserted into the top of the installation legs 3, a limiting block 12 is arranged at the upper end of the locating pin 4, a locking groove 5 is arranged at one side of the locating pin 4, a cavity 6 is arranged in the middle of the base 2, a plurality of locating grooves 7 are arranged at two sides of the base 2, a bidirectional screw 8 is rotatably installed in the cavity 6, one end of the bidirectional screw 8 is fixedly connected with a knob 13, a plurality of movable blocks 9 are connected to the bidirectional screw 8 in a threaded manner, two ends of the movable blocks 9 are hinged with connecting rods 10, one end of each connecting rod 10 is hinged with a locking rod 11, the valve body 1 is placed on the base 2 through the locating pin 4, the locating grooves 7, the movable blocks 9, the connecting rods 10 and the setting of the locking rods 11, the valve body 1 is penetrated into the installation legs 3 when the valve body 1 is installed, the bidirectional screw 8 is penetrated into the locating groove 7, then only the knob 13 is rotated, the bidirectional screw 8 is required to drive the movable blocks 9 to be driven to move, and the connecting rods 10 are required to be removed when the valve body 1 is reversely inserted into the locking groove 1, and the valve body 1 is required to be dismounted, and the valve body can be conveniently dismounted, and the valve body is conveniently removed, and the valve body is required to be conveniently moved, and the connecting rods are moved by the connecting rods 10 and the connecting rods are required to be inserted.
Wherein, recess 14 has been seted up to the one end of base 2, and knob 13 is located recess 14, can accomodate the protection to knob 13 through recess 14.
Wherein, be located the equal fixedly connected with guide arm 15 of both sides of two-way screw rod 8 in the cavity 6, movable block 9 slip cup joints on guide arm 15, can lead to movable block 9 through guide arm 15, has seted up slide hole 16 between constant head tank 7 and the cavity 6, and locking lever 11 slip runs through in slide hole 16, can lead to locking lever 11 through slide hole 16.
The working principle and the using flow of the utility model are as follows: firstly, through setting up of locating pin 4, locked groove 5, constant head tank 7, bi-directional screw 8, movable block 9, connecting rod 10 and locking lever 11, put valve body 1 on base 2 when installing valve body 1, penetrate locating pin 4 into installation foot 3 and stretch into in the locked groove 7, then only need use knob 13 rotatory bi-directional screw 8, make bi-directional screw 8 drive movable block 9 and remove, make movable block 9 drive locking lever 11 through connecting rod 10 and insert locked groove 5 in, can utilize locating pin 4 to fix valve body 1, when dismantling, only need reverse rotation knob 13 back pull out locating pin 4 can, thereby the dismouting of valve body 1 has been made things convenient for.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A variable speed control valve comprising a valve body (1) and a base (2) for mounting the valve body (1), characterized in that: the utility model discloses a valve body, including valve body (1), connecting rod (10), locating pin (4), locking groove (5) have been seted up at the top of installing foot (3), cavity (6) have been seted up at one side of locating pin (4), a plurality of constant head tanks (7) have all been seted up at the middle part of base (2), bi-directional screw (8) are installed in cavity (6) internal rotation, threaded connection has a plurality of movable blocks (9) on bi-directional screw (8), connecting rod (10) have all been articulated at the both ends of movable block (9), locking rod (11) have been articulated to the one end of connecting rod (10).
2. A shift control valve according to claim 1, characterized in that: the upper end of the locating pin (4) is provided with a limiting block (12).
3. A shift control valve according to claim 1, characterized in that: one end of the bidirectional screw rod (8) is fixedly connected with a knob (13).
4. A shift control valve according to claim 3, characterized in that: one end of the base (2) is provided with a groove (14), and the knob (13) is positioned in the groove (14).
5. A shift control valve according to claim 1, characterized in that: guide rods (15) are fixedly connected to two sides of the bidirectional screw rod (8) in the cavity (6), and the movable blocks (9) are sleeved on the guide rods (15) in a sliding mode.
6. A shift control valve according to claim 1, characterized in that: a sliding hole (16) is formed between the positioning groove (7) and the cavity (6), and the locking rod (11) penetrates through the sliding hole (16) in a sliding mode.
CN202322135604.4U 2023-08-09 2023-08-09 Speed-changing control valve Active CN220452366U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322135604.4U CN220452366U (en) 2023-08-09 2023-08-09 Speed-changing control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322135604.4U CN220452366U (en) 2023-08-09 2023-08-09 Speed-changing control valve

Publications (1)

Publication Number Publication Date
CN220452366U true CN220452366U (en) 2024-02-06

Family

ID=89729143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322135604.4U Active CN220452366U (en) 2023-08-09 2023-08-09 Speed-changing control valve

Country Status (1)

Country Link
CN (1) CN220452366U (en)

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