Diesel engine multi-way valve with self-locking device

Abstract

The utility model relates to the technical field of diesel engines, and discloses a diesel engine multi-way valve with a self-locking device, which comprises a multi-way valve main body, an operating assembly, a self-locking assembly and a locking assembly, and the operating assembly comprises a connecting piece, an operating rod and a limiting snap ring. According to the multi-way valve with the self-locking device for the diesel engine, an operating rod drives a second fixing plate fixedly connected with a first fixing plate on the side face of a connecting rod fixedly connected with a first arc-shaped mounting block to move, meanwhile, the second fixing plate controls an inserting shell to move, and the inserting shell makes contact with a locking column on the side face of a locking column in the moving process; in the contact process, the locking ball drives the spring to contract until the locking ball enters a clamping groove formed in the locking column, locking is formed under the action of elastic potential energy of the spring, then self-locking is completed, and accidental movement of the operating rod caused by factors such as equipment vibration and mistaken touch of personnel is effectively avoided in the whole operation process; and thus, the operation safety is enhanced to the greatest extent.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine technology, specifically to a multi-way valve for a diesel engine with a self-locking device. Background Technology

[0002] The multi-way valve in a diesel engine is a key control component in the hydraulic system. It is mainly used to manage and distribute the flow of hydraulic oil to different actuators. The multi-way valve is composed of multiple directional valves, usually including 2-3 three-position valves. Each valve controls a double-acting hydraulic cylinder. Some models (such as Danfoss PVG32) support proportional control and can be adapted to load-sensitive systems to achieve precise flow regulation. Through proper selection and standardized operation, the multi-way valve can significantly improve the reliability and operating efficiency of the diesel engine hydraulic system.

[0003] However, in actual operation, the inventors found the following problems: In many engineering machinery and equipment using diesel engines, multi-way valves are used to control the actions of multiple actuators. The accuracy and safety of their operation are crucial. When the equipment stops working, the multi-way valve's control lever lacks an effective locking mechanism to ensure that the multi-way valve remains in a safe position. Accidental contact with the control lever can cause the equipment to start unexpectedly, which may lead to safety accidents and poses a certain degree of danger.

[0004] Based on this, the present invention provides a multi-way valve for diesel engines with a self-locking device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-way valve for diesel engines with a self-locking device. This valve has the advantage of self-locking the control lever when the equipment is stopped to prevent accidental start-up, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a multi-way valve for a diesel engine with a self-locking device, comprising a multi-way valve body, an operating component, a self-locking component, and a locking component. The operating component includes a connector, a control lever, and a limiting ring. The control lever has a self-locking component on its surface. The self-locking component includes an arc-shaped mounting block one and an arc-shaped mounting block two. The outer arc surface of the control lever is fitted with the arc-shaped mounting block one and the arc-shaped mounting block two. The outer arc surface of the arc-shaped mounting block one is fixedly connected to a connecting rod. The other side of the connecting rod is fixedly connected to a fixing plate one. Two sets of fixing plates two are fixedly connected to the side of the fixing plate one. Both sets of fixing plates two have plug-in shells fixedly connected to their sides. A spring is fixedly connected inside the cavity of the plug-in shell. A locking ball is fixedly installed on the other side of the spring.

[0007] Preferably, a locking assembly is provided on the side of the multi-way valve body. The locking assembly includes a connecting arm, a locking post, and a locking groove. The connecting arm is fixedly connected to the side of the multi-way valve body, and the locking post is fixedly connected to the other side of the connecting arm. The top and bottom of the locking post are respectively provided with locking grooves, and a locking ball is fitted inside the locking groove.

[0008] Preferably, a connector is provided on the side of the multi-way valve body, and an operating lever is connected inside the connector.

[0009] Preferably, two sets of limiting rings are fixedly installed on the surface of the control lever, and arc-shaped mounting block one and arc-shaped mounting block two are attached to the opposite sides of the two sets of limiting rings.

[0010] Preferably, the outer arc surfaces of both the first and second arc mounting blocks are fixedly connected to two sets of extension plates, and both sets of extension plates are provided with threaded grooves, with fastening screws connected to the internal threads of the threaded grooves.

[0011] Preferably, the arc-shaped mounting block one and the arc-shaped mounting block two have the same shape characteristics.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This diesel engine features a multi-way valve with a self-locking device. By vertically resetting the control lever, the lever moves the connecting rod fixed to the side of the arc-shaped mounting block, which is fixed to the side of the fixing plate, which is fixed to the side of the fixing plate. Simultaneously, the fixing plate controls the movement of the plug-in housing. During the movement, the plug-in housing contacts the locking pin on the side of the locking pin. During the contact, the locking ball causes the spring to contract until the locking ball enters the engagement groove of the locking pin. Under the action of the spring's elastic potential energy, the locking is completed, thus achieving self-locking. Throughout the operation, the accidental movement of the control lever caused by equipment vibration, accidental touch by personnel, etc., is effectively avoided, thereby maximizing operational safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0015] Figure 2 This is a schematic diagram of the operating component structure of this utility model;

[0016] Figure 3 This utility model Figure 2 A partial structural diagram;

[0017] Figure 4 This is a schematic diagram of the internal structure of the plug-in shell of this utility model.

[0018] In the diagram: 1. Multi-way valve body; 2. Operating component; 201. Connector; 202. Control lever; 203. Limiting ring; 3. Self-locking component; 301. Arc-shaped mounting block one; 302. Arc-shaped mounting block two; 303. Fastening screw; 304. Extension plate; 305. Connecting rod; 306. Fixing plate one; 307. Fixing plate two; 308. Insertion shell; 309. Spring; 310. Locking ball; 4. Locking component; 401. Connecting arm; 402. Locking pin; 403. Engaging groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 A multi-way valve for a diesel engine with a self-locking device includes a multi-way valve body 1, an operating component 2, a self-locking component 3, and a locking component 4. The operating component 2 includes a connector 201, a control lever 202, and a limiting ring 203. The self-locking component 3 is provided on the surface of the control lever 202. The self-locking component 3 includes an arc-shaped mounting block 301 and an arc-shaped mounting block 302. The outer arc surface of the control lever 202 is fitted with the arc-shaped mounting block 301 and the arc-shaped mounting block 302. A connecting rod 305 is fixedly connected to the outer arc surface of the arc-shaped mounting block 301. A fixing plate 306 is fixedly connected to the other side of the connecting rod 305. Two sets of fixing plates 307 are fixedly connected to the side of the fixing plate 306. A plug-in shell 308 is fixedly connected to the side of each of the two sets of fixing plates 307. A spring 3 is fixedly connected inside the cavity of the plug-in shell 308. 09. A locking ball 310 is fixedly installed on the other side of the spring 309. When the control lever 202 is vertically reset, the control lever 202 drives the connecting rod 305 fixedly connected to the arc-shaped mounting block 301 to move the fixing plate 307 fixedly connected to the side fixing plate 306. At the same time, the fixing plate 307 controls the movement of the plug shell 308. During the movement, the plug shell 308 comes into contact with the locking post 402 on the side of the locking post 402. During the contact process, the locking ball 310 drives the spring 309 to contract until the locking ball 310 enters the engagement groove 403 opened in the locking post 402 and forms a lock under the action of the elastic potential energy of the spring 309, thus completing the self-locking. During the entire operation, the accidental movement of the control lever caused by equipment vibration, accidental touch by personnel, etc. is effectively avoided, thereby maximizing the safety of operation.

[0021] The multi-way valve body 1 has a locking component 4 on its side. The locking component 4 includes a connecting arm 401, a locking post 402 and a locking groove 403. The connecting arm 401 is fixedly connected to the side of the multi-way valve body 1, and the locking post 402 is fixedly connected to the other side of the connecting arm 401. The top and bottom of the locking post 402 are respectively provided with locking grooves 403, and a locking ball 310 is fitted inside the locking groove 403.

[0022] The multi-way valve body 1 has a connector 201 on its side. The connector 201 is internally connected to a control lever 202. The control lever 202 is controlled by the connector 201, which is existing technology and therefore not described in detail.

[0023] Among them, two sets of limiting rings 203 are fixedly installed on the surface of the control lever 202, and arc-shaped mounting block 1 301 and arc-shaped mounting block 2 302 are attached to the opposite sides of the two sets of limiting rings 203.

[0024] Among them, the outer arc surfaces of arc-shaped mounting block 1 301 and arc-shaped mounting block 2 302 are fixedly connected to two sets of extension plates 304. Both sets of extension plates 304 are provided with screw grooves, and the screw grooves are internally threaded with fastening screws 303. Through the two sets of extension plates 304 on the outer arc surfaces of arc-shaped mounting block 1 301 and arc-shaped mounting block 2 302, the fastening screws 303 and two sets of limit rings 203 form a locking linkage with the operating lever 202. In this way, when the self-locking component 3 is damaged, it can be removed and replaced by fastening screws 303.

[0025] Among them, the arc-shaped mounting block 301 and the arc-shaped mounting block 302 have the same shape characteristics.

[0026] Working principle: The two sets of extension plates 304 on the outer arc surfaces of the arc-shaped mounting block 1 301 and arc-shaped mounting block 2 302 are connected by fastening screws 303 and two sets of limiting rings 203 to form a locking linkage with the operating lever 202. When the operating lever 202 is vertically reset, it drives the connecting rod 305 fixedly connected to the arc-shaped mounting block 1 301 to move the fixing plate 2 307 fixedly connected to the side fixing plate 306. At the same time, the fixing plate 2 307 controls the movement of the plug shell 308. During the movement, the plug shell 308 comes into contact with the locking post 402 on the side of the locking post 402. During the contact, the locking ball 310 drives the spring 309 to contract until the locking ball 310 enters the locking groove 403 opened in the locking post 402 and forms a lock under the elastic potential energy of the spring 309, thus completing the self-locking.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-way valve for a diesel engine with a self-locking device, characterized in that, The valve includes a multi-way valve body (1), an operating component (2), a self-locking component (3), and a locking component (4). The operating component (2) includes a connector (201), a control lever (202), and a limiting ring (203). The control lever (202) has a self-locking component (3) on its surface. The self-locking component (3) includes an arc-shaped mounting block one (301) and an arc-shaped mounting block two (302). The outer arc surface of the control lever (202) is fitted with the arc-shaped mounting block one (301) and the arc-shaped mounting block two (302). A connecting rod (305) is fixedly connected to the outer arc surface of the arc-shaped mounting block 1 (301). A fixing plate 1 (306) is fixedly connected to the other side of the connecting rod (305). Two sets of fixing plates 2 (307) are fixedly connected to the side of the fixing plate 1 (306). A plug-in shell (308) is fixedly connected to the side of each of the two sets of fixing plates 2 (307). A spring (309) is fixedly connected inside the cavity of the plug-in shell (308). A locking ball (310) is fixedly installed on the other side of the spring (309).

2. A multi-way valve with a self-locking device for a diesel engine according to claim 1, characterized in that: A locking assembly (4) is provided on the side of the multi-way valve body (1). The locking assembly (4) includes a connecting arm (401), a locking post (402), and a locking groove (403). The connecting arm (401) is fixedly connected to the side of the multi-way valve body (1), and the locking post (402) is fixedly connected to the other side of the connecting arm (401). The locking post (402) has locking grooves (403) at its top and bottom, and a locking ball (310) fits inside the locking groove (403).

3. A multi-way valve with a self-locking device for a diesel engine according to claim 1, characterized in that: The multi-way valve body (1) has a connector (201) on its side, and a control lever (202) is connected inside the connector (201).

4. A multi-way valve with a self-locking device for a diesel engine according to claim 1, characterized in that: Two sets of limiting rings (203) are fixedly installed on the surface of the control lever (202), and arc-shaped mounting block one (301) and arc-shaped mounting block two (302) are attached to the opposite sides of the two sets of limiting rings (203).

5. A multi-way valve with a self-locking device for a diesel engine according to claim 1, characterized in that: The outer arc surfaces of the first arc mounting block (301) and the second arc mounting block (302) are fixedly connected to two sets of extension plates (304). Both sets of extension plates (304) are provided with threaded grooves, and fastening screws (303) are threaded into the inside of the threaded grooves.

6. A multi-way valve with a self-locking device for a diesel engine according to claim 1, characterized in that: The arc-shaped mounting block one (301) and the arc-shaped mounting block two (302) have the same shape characteristics.

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