Series-parallel electric switching valve

Abstract

The utility model discloses a series-parallel electric switching valve. Comprising a valve body and a driving device, a valve cavity is formed in the valve body, an input port and an output port are formed in one side, four independent transmission channels are arranged on the other side, and valve decks are arranged at the two ends respectively. The two ends of the valve cavity penetrate through the two ends of the valve body; one ends of the input port and the output port are respectively communicated with the valve cavity, and the other ends penetrate through the valve body to be communicated with the outside; two of the four transmission channels close to the two ends of the valve body correspond to the input port and the output port respectively, one end of each transmission channel is communicated with the valve cavity, and the other end of each transmission channel penetrates through the valve body to be communicated with the outside; the two ends of the valve element penetrate through the two ends of the valve body and stretch into the valve deck. The driving device is located outside the valve cover close to one end of the input port and connected with the valve element. The driving device drives the valve element to move in the valve cavity, combined communication among the four conveying channels is achieved through movement of the valve element, and therefore series connection and parallel connection switching between the two pumps is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation reinforcement, in particular to a series-parallel electric switching valve. Background Art

[0002] At present, in engineering construction, especially in grouting and grouting projects, according to actual engineering needs, sometimes large flow and low pressure are required, and sometimes high pressure and small flow of cement slurry grouting are required. This means that when the flow or pressure of a pump cannot meet the needs of the project, two pumps need to be used in series or parallel. When the two pumps are connected in series, the output pressure can be doubled; when the two pumps are connected in parallel, the flow can be doubled, so as to meet the requirements of the construction parameters. In the prior art, when two pumps are connected in series or in parallel during the construction process, the operator needs to manually connect the input and output ends of the two pumps to the grouting and grouting machine respectively to realize the series and parallel connection of the two pumps. As a result, when the two pumps need to be frequently switched in series or in parallel during the construction process, a dedicated person is required to operate, which consumes manpower, and when the interface is not connected properly, leakage occurs. Summary of the invention

[0003] In view of this, the present application provides a series-parallel electric switching valve suitable for dual-pump pipelines to solve the problem of labor-consuming human intervention required when performing series-parallel operation of two pumps in the prior art. The specific solution is:

[0004] A series-parallel electric switching valve, comprising: a valve body and a driving device;

[0005] A valve cavity is arranged in the valve body, an input port and an output port are arranged at intervals on one side of the valve body, four independent transmission channels are arranged at intervals on the other side of the valve body, and valve covers are arranged at both ends of the valve body;

[0006] The two ends of the valve cavity respectively penetrate the two ends of the valve body, and a valve core is arranged in the valve cavity;

[0007] The input port and the output port are respectively arranged near the end of the valve body, one end of the input port and the output port are respectively communicated with the valve cavity, and the other end of the input port and the output port pass through the valve body and communicate with the outside;

[0008] The four transmission channels are equidistantly arranged along the extension direction of the valve body, wherein the two transmission channels close to the two ends of the valve body correspond to the input port and the output port respectively, one end of the transmission channel is communicated with the valve cavity respectively, and the other end of the transmission channel passes through the valve body and is communicated with the outside;

[0009] The two ends of the valve core pass through the two ends of the valve body respectively and extend into the valve cover;

[0010] The driving device is located outside the valve cover near one end of the output port, and the driving end of the driving device extends into the valve cover and is connected with the valve core.

[0011] Preferably, the valve core includes a connecting rod and a blocking portion arranged on the connecting rod;

[0012] The connecting rod is located in the valve cavity, and both ends of the connecting rod are respectively inserted into the valve cover through the valve body, and one end of the connecting rod inserted into the valve cover near the output port is connected to the driving device;

[0013] Two blocking parts are provided, and the two blocking parts are spaced apart along the axial direction of the connecting rod, and the distance between the two blocking parts is the same as the center distance between two transmission channels with one transmission channel in between.

[0014] Preferably, the valve cover as a whole is in a horizontally placed T-shaped structure, one end of the valve cover is detachably connected to the end of the valve body, and the other end of the valve cover faces away from the valve body.

[0015] Preferably, the blocking portion matches the valve cavity.

[0016] Preferably, the valve cover is sealed to the valve body, and the valve core is sealed to the valve cover.

[0017] Preferably, the driving device is any one of an electric telescopic rod or a hydraulic telescopic rod.

[0018] Beneficial effects:

[0019] The present application sets a valve cavity in the valve body, sets four transmission channels connected to the input and output ends of the two pumps on one side of the valve body, the four transmission channels are connected to the valve cavity respectively, a driving device is set on the outside of one end of the valve body, and a valve core is set in the valve cavity, one end of the valve core is connected to the driving device, and the driving device drives the valve core to move in the valve cavity, and the combination of the four transmission channels is connected through the movement of the valve core, so as to switch the series and parallel between the two pumps. In this way, the series and parallel between the two pumps can be realized by controlling the driving device, thereby avoiding the need for a special person to connect the pump and the grouting machine in the prior art, reducing manpower loss, and avoiding the problem of slurry leakage caused by connection errors when the pump and the grouting machine are frequently connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a series-parallel electric switching valve provided in this application;

[0021] Figure 2 A schematic diagram of a parallel valve orifice of a series-parallel electric switching valve provided in this application;

[0022] Figure 3 A schematic diagram of a series-parallel electric switching valve series valve pipe port provided in this application;

[0023] Figure 4 A schematic diagram of the principle of a series-parallel electric switching valve provided in this application.

[0024] Description of parts and drawings:

[0025] 1. Driving device; 2. Valve cover; 3. Valve body; 4. Output port; 5. First blocking part; 6. Valve chamber; 7. Second blocking part; 8. Input port; 9. Valve core; 10. First transmission channel; 11. Second transmission channel; 12. Third transmission channel; 13. Fourth transmission channel; 14. First pump; 15. Second pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-4 The utility model provides a series-parallel electric switching valve, comprising:

[0028] Valve body 3;

[0029] A valve cavity 6 is located in the valve body 3 and is arranged along the extension direction of the valve body, wherein the center line of the valve cavity 6 coincides with the center line of the valve body 3, and the valve cavity 6 runs through the entire valve body 3;

[0030] An input port 8 and an output port 4 are arranged on one side of the valve body 3, near the two ends of the valve body 3, one end of the input port 8 and the output port 4 are respectively connected to the valve cavity 6, and the other ends of the input port 8 and the output port 4 are respectively connected to the total feed port and the total discharge port;

[0031] Four independent transmission channels (including the first transmission channel 10, the second transmission channel 11, the third transmission channel 12 and the fourth transmission channel 13) are arranged on the other side of the valve body 3 and are arranged at equal intervals. One end of the four independent transmission channels is connected to the valve cavity respectively, and the other end is connected to the feed port and the discharge port of the two pumps respectively. Among the four independent transmission channels, the two transmission channels (i.e., the first transmission channel and the fourth transmission channel) arranged near the end of the valve body 3 correspond to the positions of the input port 8 and the output port 4 respectively; the calibers and shapes of the four independent transmission channels, the output port 4 and the input port 8 match each other;

[0032] A valve core 9 is arranged in the valve cavity 6, and the valve core 9 is arranged along the extension direction of the valve cavity 6. The center line of the valve core 9 coincides with the center line of the valve cavity, and the valve core 9 runs through the entire valve cavity. The valve core 9 includes a connecting rod and a blocking portion arranged along the axial direction of the connecting rod. The two ends of the connecting rod pass through the two ends of the valve body and are inserted into the corresponding valve cover 2 respectively. The driving device is located at the end of the connecting rod close to the output port, and the driving end of the driving device 1 extends into the valve cover 2 close to the output port and is connected to the connecting rod; the blocking portion includes a first blocking portion and a second blocking portion, the first blocking portion and the second blocking portion are arranged at intervals, and the distance between the two is the same as the center distance between two transmission channels with a transmission channel in the middle; the first blocking portion and the second blocking portion are arranged at intervals with the connecting rod as the axis, and are connected to the connecting rod, the shapes and sizes of the first blocking portion and the second blocking portion match the valve cavity, and the first blocking portion and the second blocking portion are respectively sealed and connected to the valve cavity 6. The driving device 1 drives the entire valve core 9 to move along the extension direction of the valve body 3, thereby realizing the series and parallel connection of two pumps connected to four independent transmission channels. The specific control process is: there is an axial through hole (i.e., valve cavity) in the valve body 3, an input port 8 and an output port 4 are arranged on opposite sides of the valve body, and along the axial direction of the valve body, and four independent transmission channels (i.e., the first transmission channel 10, the second transmission channel 11, the third transmission channel 12, and the fourth transmission channel 13), wherein the input port 8 and the output port 4, and one end of the four independent transmission channels are respectively connected to the valve cavity, and each leads the channel to the outer surface of the valve block; the first transmission channel 10 and the third transmission channel 12 are respectively connected to the feed port and the discharge port of the first pump 14, and the second transmission channel 11 and the fourth transmission channel 13 are respectively connected to the feed port and the discharge port of the second pump 15; the input port 8 and the output port 4 are respectively connected to the total feed port and the total discharge port.

[0033] When the valve core is in Figure 3 In the position shown, the input port 8 and the first transmission channel 10 are interconnected; the third transmission channel 12 and the second transmission channel 11 are connected to the discharge port of the first pump 14 and the feed port of the second pump 15 respectively, the discharge port of the first pump 14 is connected to the third transmission channel 12, and then enters the second transmission channel 11 through the third transmission channel 12, and enters the feed port of the second pump 15 through the second transmission channel 11, the discharge port of the second pump 15 is connected to the fourth transmission channel 13, and then outputs from the output port 4 through the fourth transmission channel 13. Thus, the first pump 14 and the second pump 15 are connected in series.

[0034] When the valve core moves to the left Figure 2In the position shown, the input port 8, the first transmission channel 10, and the second transmission channel 11 are interconnected; the output port 4, the third transmission channel 12, and the fourth transmission channel 13 are interconnected. The medium enters from the input port 8, and enters the feed port of the first pump 14 through the first transmission channel 10, and the first pump 14 discharges into the third transmission channel 12; enters the feed port of the second pump 15 through the second transmission channel 11, and the second pump 15 discharges into the fourth transmission channel 13, and the third transmission channel 12 and the fourth transmission channel 13 merge and are output from the output port 4. The first pump 14 and the second pump 15 are connected in parallel.

[0035] This enables automatic switching between series and parallel connections of dual pumps, so that when the flow or pressure of one pump during construction does not meet the project requirements, the two pumps can be used in series and parallel. The output pressure can be doubled when connected in series, and the flow can be doubled when connected in parallel, thereby meeting the requirements of the construction parameters.

[0036] The valve covers are located at both ends of the valve body, one end of the valve covers is detachably connected to the two ends of the valve body, and the middle part of the other end of the valve covers extends outward along the extension direction of the valve body, forming movement space at both ends of the connecting rod in the valve core, so that the entire valve cover is horizontally prevented from being T-shaped. In one embodiment of the present application, the detachable connection between the valve cover and the valve body is achieved by screwing or bolting;

[0037] It should be noted that:

[0038] In the present application, the connection between the valve cover and the valve body, and the connection between the valve core and the valve cover are both sealed connections.

[0039] The driving device is any one of an electric telescopic rod or a hydraulic telescopic rod.

[0040] The inner diameters of the four independent transmission channels are the same, and the four independent transmission channels are equidistantly arranged along the extension direction of the valve cavity.

[0041] The distance between the two blocking portions is the same as the center distance between two transmission channels with a transmission channel in between, and the shape and size of the blocking portion match the radial size and shape of the valve cavity.

[0042] In one embodiment of the present application, the driving device 1 adopts an electric push rod, which can switch the two pumps in series or in parallel by the operator simply manually operating an electric control button; or the device can be equipped with a controller, and the electric push rod is communicated with the controller to realize the conversion of the two pumps in series or in parallel through the controller.

[0043] The valve cavity of the present application has arc chamfers at the corners and joints, so that the device has no dead angles for flow when it is connected in series or in parallel, and will not solidify due to the medium not flowing for a certain period of time, causing blockage.

Claims

1. A series-parallel electric switching valve, characterized in that: include: Valve body and drive device; A valve cavity is arranged in the valve body, an input port and an output port are arranged at intervals on one side of the valve body, four independent transmission channels are arranged at intervals on the other side of the valve body, and valve covers are arranged at both ends of the valve body; The two ends of the valve cavity respectively penetrate the two ends of the valve body, and a valve core is arranged in the valve cavity; The input port and the output port are respectively arranged near the end of the valve body, one end of the input port and the output port are respectively communicated with the valve cavity, and the other end of the input port and the output port pass through the valve body and communicate with the outside; The four transmission channels are equidistantly arranged along the extension direction of the valve body, wherein the two transmission channels close to the two ends of the valve body correspond to the input port and the output port respectively, one end of the transmission channel is communicated with the valve cavity respectively, and the other end of the transmission channel passes through the valve body and is communicated with the outside; The two ends of the valve core pass through the two ends of the valve body respectively and extend into the valve cover; The driving device is located outside the valve cover near one end of the output port, and the driving end of the driving device extends into the valve cover and is connected with the valve core.

2. A series-parallel electric switching valve according to claim 1, characterized in that: The valve core includes a connecting rod and a blocking portion arranged on the connecting rod; The connecting rod is located in the valve cavity, and both ends of the connecting rod are respectively inserted into the valve cover through the valve body, and one end of the connecting rod inserted into the valve cover near the output port is connected to the driving device; Two blocking parts are provided, and the two blocking parts are spaced apart along the axial direction of the connecting rod, and the distance between the two blocking parts is the same as the center distance between two transmission channels with one transmission channel in between.

3. A series-parallel electric switching valve according to claim 2, characterized in that: The valve cover is in a horizontally placed T-shaped structure as a whole. One end of the valve cover is detachably connected to the end of the valve body, and the other end of the valve cover faces away from the valve body.

4. The series-parallel electric switching valve according to claim 2, characterized in that: The blocking portion matches the valve cavity.

5. The series-parallel electric switching valve according to claim 1, characterized in that: The valve cover is sealed to the valve body, and the valve core is sealed to the valve cover.

6. The series-parallel electric switching valve according to claim 1, characterized in that: The driving device is any one of an electric telescopic rod or a hydraulic telescopic rod.

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