Slide valve structure convenient to assemble

Abstract

The utility model relates to the technical field of slide valves, and discloses a slide valve structure convenient to assemble, which comprises a valve core, a plurality of sealing rings used for sealing are sleeved on the valve core, and the valve core comprises a first connecting block, a second connecting block and a third connecting block. The first connecting block, the second connecting block and the third connecting block are fixedly connected through fasteners, and the first connecting block and the second connecting block are each provided with a stably-connected connecting piece. According to the sliding valve sealing ring sleeve device, the problems that when a sealing ring of a large-size sliding valve is assembled in a sleeved mode, a worker difficultly opens the sealing ring with the help of a tool, and the sealing ring is prone to being damaged or not in place in the sleeved mode under the condition that the worker operates improperly or the tool is not selected properly are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slide valves, in particular to a slide valve structure that is easy to assemble. Background Art

[0002] The sliding valve structure is a diverter valve structure that changes the position of the fluid inlet and outlet channels by sliding the valve core (plunger, valve disc) on the sealing surface to control the flow direction of the fluid. Sliding valves are commonly used in steam engines, hydraulic and pneumatic devices to enable the moving mechanism to obtain a predetermined direction and stroke or to achieve automatic continuous operation.

[0003] Currently, when assembling a sliding valve structure, it is necessary to sleeve multiple sealing rings. When sleeve-fitting the sealing rings of a larger sliding valve, workers need to stretch the sealing rings wider before sleeve-fitting them on the valve body. The larger sliding valve usually means that the size of its sealing rings is also correspondingly larger, which makes it difficult for workers to stretch them open and requires the use of tools. In addition, if the workers operate improperly or choose inappropriate tools, it is easy to cause the sealing rings to be damaged or not sleeved in place. Utility Model Content

[0004] The purpose of the present utility model is to solve the problem mentioned in the above-mentioned background technology that when a large sliding valve is fitted with a sealing ring, it is difficult for workers to stretch the sealing ring and they need to use tools to stretch it open. In addition, if the workers operate improperly or choose inappropriate tools, the sealing ring may be damaged or not fit properly.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A sliding valve structure that is easy to assemble includes a valve core, and the valve core is provided with several sealing rings for sealing. The valve core includes connecting block 1, connecting block 2 and connecting block 3. The connecting block 1, connecting block 2 and connecting block 3 are fixedly connected by fasteners. The connecting block 1 and the connecting block 2 are both provided with connecting pieces for stable connection.

[0007] Preferably, a connecting rod is provided on the connecting block one, a socket is provided on the connecting block two, and a slot is provided on the connecting block three. The connecting rod passes through the socket and is located in the slot of the connecting block three. The fastener is provided on the connecting block three to fasten the connecting block three to the connecting rod. The connecting block two can be inserted into the connecting rod through the socket, and the connecting rod can be inserted into the connecting block three through the slot, so that the connecting block one, the connecting block two and the connecting block three are stably assembled together.

[0008] Preferably, there are several connecting blocks 2, and both ends of the connecting block 2 are provided with limiting ends. The connecting blocks 1 and 2 are both provided with connecting ends, and limiting grooves are formed between the connecting blocks 1, 2 and 3 through the connecting ends. The sealing ring is in the limiting groove and is sleeved on the connecting end. The connecting ring can be directly sleeved on the connecting end during assembly, and the sealing ring can be positioned through the limiting end to ensure that the sealing ring is stably in the limiting groove.

[0009] Preferably, the connecting rod is a polygonal rod body, and the insertion hole is a polygonal hole corresponding to the rod body. The polygonal shape of the connecting rod can prevent the connected connecting block 2 and the connecting block 3 from rotating.

[0010] Preferably, the connecting member includes an insert rod, a groove is provided on the insert rod, a positioning plate is provided in the groove, and the connecting member enables the connecting block one, the connecting block two and the connecting block three to be connected together more stably.

[0011] Preferably, the second connecting block and the third connecting block are both provided with connecting grooves that cooperate with the connecting piece, and positioning grooves are provided in the connecting grooves, and the arc-shaped plates can be engaged with the positioning grooves and snap-fitted together.

[0012] Preferably, the positioning plate is an arc-shaped plate, and only one end of the positioning plate is connected to the insertion rod. The arc-shaped plate is an elastic plate when in use, and the arc-shaped plate is connected to the insertion rod through one end, so that the arc-shaped plate can be deformed when squeezed, so that the arc-shaped plate can be inserted into the connecting groove.

[0013] Preferably, an outer edge of the connecting groove is provided with an inverted bevel, and the inverted bevel is provided around a circle, so that the insertion rod is more easily inserted into the connecting groove through the inverted bevel.

[0014] Preferably, a spring groove is provided on the connecting block three, a connecting hole is provided in the spring groove, a threaded groove cooperating with a fastener is provided at one end of the connecting rod away from the connecting block one, the fastener connecting end passes through the connecting hole and is connected to the threaded groove, and the fastener is a fastening screw when in use, and the threaded connection between the fastening screw and the threaded groove on the connecting rod enables the connecting block three to be fixedly connected to the connecting rod, and the connecting block two between the connecting block three and the connecting block one is fixedly connected, so that the connecting block one, the connecting block two and the connecting block three are fixedly assembled into a sliding rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model divides the valve core into a plurality of connection blocks, namely, connection block 1, connection block 2 and connection block 3, so that workers can directly sleeve the sealing ring at the required position, and it is more convenient for workers to sleeve and assemble the sealing ring on the valve core, thereby avoiding the situation in which the sealing ring is easily damaged or not sleeved properly when the workers assemble the sealing ring and the valve core together;

[0017] The provided connecting piece enables the connecting block 1, the connecting block 2 and the connecting block 3 to be connected together more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 This is an overall exploded view of the present invention;

[0022] Figure 4 This is a structural view of the second connecting block of the present invention;

[0023] Figure 5 This is a second sectional view of the connecting block of the present invention;

[0024] Figure 6 It is three sectional views of the connecting block of the present invention.

[0025] Explanation of the figure numbers: 1. Valve core; 11. Connecting block 1; 111. Connecting rod; 12. Connecting block 2; 121. Limiting end; 122. Insertion hole; 13. Connecting block 3; 131. Spring groove; 132. Connecting hole; 14. Connecting end; 15. Limiting groove; 16. Connecting piece; 161. Insertion rod; 162. Positioning plate; 17. Connecting groove; 171. Positioning groove; 172. Inclined surface; 2. Sealing ring; 3. Fastener. DETAILED DESCRIPTION

[0026] The present invention is described in further detail below with reference to the accompanying drawings.

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0030] See also Figures 1-6 , a sliding valve structure that is easy to assemble, includes a valve core 1, and the valve core 1 is provided with several sealing rings 2 for sealing. The valve core 1 includes a connecting block 11, a connecting block 2 12 and a connecting block 3 13. The connecting block 11, the connecting block 2 12 and the connecting block 3 13 are fixedly connected by fasteners 3. The connecting block 11 and the connecting block 2 12 are both provided with a connecting piece 16 for stable connection. The connecting block 11 is provided with a connecting rod 111, the connecting block 2 12 is provided with a socket 122, and the connecting block 3 13 is provided with a slot. The connecting rod 111 passes through the socket 122 and is in the slot of the connecting block 3 13. The fastener 3 is provided on the connecting block 3 13 to fasten the connecting block 3 13 to the connecting rod 111, and the connecting block 2 12 can be inserted into the connecting rod 111 through the socket 122, and the connecting rod 111 can be inserted into the connecting block 3 13 through the slot, so that the connecting block 11, the connecting block 2 12 and the connecting block 3 13 are stably assembled together.

[0031] Furthermore, there are several connecting blocks 12, and both ends of the connecting block 12 are provided with limit ends 121. The connecting blocks 11 and 12 are provided with connecting ends 14. The connecting ends 14 form limit grooves 15 between the connecting blocks 11, 12 and 13. The sealing ring 2 is in the limit groove 15 and is sleeved on the connecting ends 14. The connecting ring can be directly sleeved on the connecting ends 14 during assembly. The sealing ring 2 can be positioned through the limit ends 121 to ensure that the sealing ring 2 is stably in the limit groove 15.

[0032] Furthermore, the connecting rod 111 is a polygonal rod body, and the insertion hole 122 is a polygonal hole corresponding to the rod body. The polygonal shape of the connecting rod 111 can prevent the connected connecting block 2 12 and the connecting block 3 13 from rotating.

[0033] The cam 162 is provided with a plurality of grooves, and the cam 163 is provided with a plurality of grooves, and the grooves are ...

[0034] Among them, a spring groove 131 is provided on the connecting block three 13, and a connecting hole 132 is provided in the spring groove 131. The end of the connecting rod 111 away from the connecting block one 11 is provided with a threaded groove that cooperates with the fastener 3. The connecting end 14 of the fastener 3 passes through the connecting hole 132 and is connected to the threaded groove. The fastener 3 is a fastening screw when in use. Through the threaded connection between the fastening screw and the threaded groove on the connecting rod 111, the connecting block three 13 can be fixedly connected to the connecting rod 111, and the connecting block two 12 between the connecting block three 13 and the connecting block one 11 is fixedly connected, so that the connecting block one 11, the connecting block two 12 and the connecting block three 13 are fixedly assembled into a sliding rod.

[0035] When assembling the sliding valve, first put the sealing ring 2 on the connecting end 14 of the connecting block 11, then align the socket 122 on the connecting block 2 12 with the connecting rod 111, insert the connecting block 2 12 onto the connecting rod 111, move the connecting block 2 12 until it contacts the connecting block 11, and insert the connecting rod 111 on the connecting block 11 into the connecting groove 17. When the connecting rod 111 moves toward the connecting groove 17, the positioning plate 162 is squeezed, and the positioning plate 162 is deformed to connect the connecting rod 111. The connecting rod 111 is moved into the connecting groove 17, and the positioning plate 162 is aligned with the positioning groove 171. The positioning plate 162 is reset to the positioning groove 171, so that the positioning plate 162 is positioned and engaged with the positioning groove 171, thereby preliminarily engaging the connecting block 2 12 with the connecting block 1 11, thereby positioning the sealing ring 2 on the connecting block 1 11. When assembling multiple connecting blocks 2 12, after engaging one connecting block 2 12 with the connecting block 1 11, the next connecting block 2 12 is inserted into the connecting block 1 After the spool 1 is assembled, the sealing ring 2 is put on the connecting end 14 of the connecting block 2 12, and the socket 122 on the connecting block 3 13 is aligned with the connecting rod 111, so that the connecting block 3 13 is inserted into the connecting rod 111, and the connecting piece 16 on the connecting block 2 12 is inserted into the connecting groove 17 on the connecting block 3 13, so that the connecting block 3 13 and the connecting block 2 12 are clamped together. It is best to pass the fastener 3 through the connecting hole 132 and threadedly connect it with the threaded groove on the connecting rod 111, so that the connecting block 1 11, the connecting block 2 12 and the connecting block 3 13 are fixedly assembled together. By dividing the valve core 1 into multiple pieces, it is convenient for workers to directly fit the sealing ring 2 in the desired position, and it is more convenient for workers to fit the sealing ring 2 on the valve core 1, avoiding the situation where the sealing ring 2 is easily damaged or not fit in place when the workers assemble the sealing ring 2 with the valve core 1.

[0036] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A sliding valve structure that is easy to assemble, characterized in that: The valve core (1) comprises a plurality of sealing rings (2) sleeved on the valve core (1), the valve core (1) comprising a connecting block 1 (11), a connecting block 2 (12) and a connecting block 3 (13), the connecting block 1 (11), the connecting block 2 (12) and the connecting block 3 (13) being fixedly connected by a fastener (3); The connecting block 1 (11) and the connecting block 2 (12) are both provided with connecting pieces (16) for stable connection.

2. A sliding valve structure that is easy to assemble according to claim 1, characterized in that: The connecting block 1 (11) is provided with a connecting rod (111), the connecting block 2 (12) is provided with a socket (122), the connecting block 3 (13) is provided with a slot, the connecting rod (111) passes through the socket (122) and is located in the slot of the connecting block 3 (13), and the fastener (3) is provided on the connecting block 3 (13) to fasten the connecting block 3 (13) and the connecting rod (111).

3. The slide valve structure that is easy to assemble according to claim 2, characterized in that: The connecting block 2 (12) is provided with a plurality of them, and both ends of the connecting block 2 (12) are provided with limiting ends (121), and the connecting block 1 (11) and the connecting block 2 (12) are provided with connecting ends (14), and limiting grooves (15) are formed between the connecting block 1 (11), the connecting block 2 (12) and the connecting block 3 (13) through the connecting ends (14), and the sealing ring (2) is located in the limiting groove (15) and is sleeved on the connecting ends (14).

4. The slide valve structure that is easy to assemble according to claim 3, characterized in that: The connecting rod (111) is a polygonal rod body, and the insertion hole (122) is a polygonal hole corresponding to the rod body.

5. The slide valve structure that is easy to assemble according to claim 4, characterized in that: The connecting member (16) includes an inserting rod (161), a groove is provided on the inserting rod (161), and a positioning plate (162) is provided in the groove.

6. The slide valve structure that is easy to assemble according to claim 5, characterized in that: The second connecting block (12) and the third connecting block (13) are both provided with a connecting groove (17) that matches the connecting piece (16), and a positioning groove (171) is provided in the connecting groove (17).

7. The slide valve structure that is easy to assemble according to claim 6, characterized in that: The positioning plate (162) is an arc-shaped plate, and only one end of the positioning plate (162) is connected to the insertion rod (161).

8. The slide valve structure that is easy to assemble according to claim 7, characterized in that: An outer edge of the connecting groove (17) is provided with an inverted bevel (172), and the inverted bevel (172) is provided in a circle around it.

9. The slide valve structure that is easy to assemble according to claim 8, characterized in that: The connecting block three (13) is provided with a spring groove (131), a connecting hole (132) is provided in the spring groove (131), and a thread groove cooperating with the fastener (3) is provided at one end of the connecting rod (111) away from the connecting block one (11), and the connecting end (14) of the fastener (3) passes through the connecting hole (132) and is connected to the thread groove.

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