Anti-theft grease injection valve and assembly method thereof

Abstract

The present invention belongs to the field of hydraulic valves, and specifically relates to an anti-theft grease injection valve and its assembly method. The anti-theft grease injection valve is installed on a valve and includes an anti-theft valve body. A positioning support sleeve is installed axially inside the anti-theft valve body, and a check valve is installed inside the positioning support sleeve. A grease injection valve is installed radially outside one end of the anti-theft valve body, so that the grease injection channel formed by the grease injection valve, the anti-theft valve body, and the positioning support sleeve is arranged at a right angle. This anti-theft grease injection valve can greatly reduce the risk of pipeline oil theft.

Description

Technical Field

[0001] The invention belongs to the field of hydraulic valves, and in particular relates to an anti-theft grease injection valve and an assembly method thereof. Background Art

[0002] As attached Figure 1 As shown in the figure, in a conventional grease injection valve structure, the check valve 3 and the grease injection valve 2 are directly threaded onto the valve 1. Due to the simple structure and easy assembly and disassembly, they lack protective features and can be easily removed, releasing the oil in the pipeline. Due to the long transportation distances of oil pipelines, the positions of many valves cannot be monitored in a timely manner, making it easy for criminals to remove the check valve 3 and the grease injection valve 2 and steal the oil. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide an anti-theft grease injection valve and an assembly method thereof, which can greatly reduce the risk of pipeline oil theft.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0005] A grease injection valve for preventing theft is installed on a valve. The grease injection valve for preventing theft includes an grease injection valve body. A positioning support sleeve is installed axially inside the grease injection valve body. A check valve is installed inside the positioning support sleeve. A grease injection valve is installed radially outside one end of the grease injection valve so that the grease injection channel formed by the grease injection valve, the grease injection valve body and the positioning support sleeve is arranged at a right angle.

[0006] Preferably, the anti-theft valve body has a main body, a mounting platform is provided at one end of the main body, a first mounting hole is opened along the radial direction of the mounting platform, the grease injection valve is connected to the first mounting hole, a second mounting hole is opened along the axial direction of the main body, and the positioning support sleeve is connected to the second mounting hole; between the first mounting hole and the second mounting hole, a first channel is also opened along the axial direction of the main body, and the first mounting hole and the second mounting hole are connected through the first channel.

[0007] Preferably, the positioning support sleeve has a support sleeve main body, the outer periphery of the support sleeve main body is provided with a positioning boss and a connecting section that cooperates with the second mounting hole; a positioning groove that cooperates with the positioning boss is provided on one side of the second mounting hole, and an annular mounting groove is provided on the positioning boss, and a sealing gasket is provided in the mounting groove.

[0008] Preferably, a mounting interface is provided on one side of the support sleeve body, a valve mounting port is provided on the valve, and the mounting interface is connected to the valve mounting port.

[0009] Preferably, a second channel is opened inside the positioning support sleeve, the check valve is installed in the second channel, and a positioning sleeve is further provided on the other side of the support sleeve body, and a third channel connected to the second channel is opened in the positioning sleeve.

[0010] Preferably, an anti-theft cover is installed at the end of the positioning sleeve, and the anti-theft cover has a spherical anti-theft cover body, and the anti-theft cover body is used to cover the grease injection channel along the direction from the first channel to the third channel.

[0011] Preferably, the diameter of the positioning sleeve is smaller than the inner diameter of the second mounting hole, so that there is a mounting gap between the positioning sleeve and the second mounting hole; the outer periphery of the anti-theft cover body is provided with a mounting portion with an L-shaped cross-section, and an adjustment gasket is provided between the mounting portion and the end face of the positioning sleeve, and one side of the mounting portion is sleeved onto the end of the positioning sleeve and is relatively fixed to the positioning sleeve.

[0012] Preferably, an annular channel is opened at the end of the third channel, and a flow gap exists between the annular channel and the anti-theft cover body. A plurality of fourth channels are evenly opened along the circumferential direction on the other side of the mounting portion, and the fourth channels and the flow gap only partially overlap in the axial direction.

[0013] Preferably, a plurality of fifth channels are opened on the anti-theft cover body, and the fifth channels are arranged close to the inner circumference of the third channel, and the central axis of the fifth channel intersects with the spherical center of the anti-theft cover body.

[0014] An assembling method for an anti-theft grease injection valve, the assembling method comprising the following steps:

[0015] S1: Assembling the check valve into the second channel of the positioning support sleeve;

[0016] S2: Installing the sealing gasket in the installation groove on the positioning boss, and sleeve the anti-theft cover on the end of the positioning sleeve;

[0017] S3: Fitting the positioning support sleeve into the second mounting hole of the anti-theft valve body;

[0018] S4: Positioning with the positioning support sleeve, assembling the mounting interface into the valve mounting opening, and then welding the anti-theft valve body to the valve;

[0019] S5: Assemble the grease injection valve into the first mounting hole of the anti-theft valve body.

[0020] Compared with the prior art, the anti-theft grease injection valve and the assembly method thereof provided by the present invention have the following beneficial technical effects:

[0021] 1. The present invention defines a first mounting hole and a second mounting hole in the anti-theft valve body, respectively, along the radial and axial directions. The first and second mounting holes are connected by a first passage. A grease injection valve and a positioning support sleeve are installed in the first and second mounting holes, respectively. The positioning support sleeve defines a second and third passages along the axial direction, and a check valve is installed in the second passage. This arrangement allows the grease injection passages in the anti-theft grease injection valve to be arranged at right angles. Compared to existing grease injection valves, it is difficult to remove both the check valve and the grease injection valve simultaneously, reducing the risk of pipeline oil theft.

[0022] 2. The present invention has an anti-theft cover installed at the end of the positioning sleeve. The anti-theft cover has a spherical anti-theft cover body. The anti-theft cover body can block the grease injection channel along the direction from the first channel to the third channel. In some cases, the anti-theft cover body can guide some theft tools to move in the opposite direction of the check valve, thereby preventing the check valve from being directly opened by the theft tools, reducing the risk of stealing oil.

[0023] 3. The present invention features an annular channel at the end of the third channel and several fourth channels evenly spaced around the circumference of the mounting portion, allowing grease to be smoothly injected into the valve interior through the fourth channel and the annular channel. Because the fourth channel and the flow gap are located near the outer periphery of the anti-theft cover and only partially overlap axially, this grease injection channel design makes it easier to directly open the check valve using a thief's tool, further reducing the risk of oil theft.

[0024] 4. An adjusting gasket is further provided between the mounting portion and the positioning sleeve of the present invention. The adjusting gasket can be used to adjust the axial distance between the fourth channel and the circulation gap. By increasing the thickness of the adjusting gasket, the axial distance between the fourth channel and the circulation gap can be increased, so that the grease can be more efficiently injected into the valve through the fourth channel and the circulation gap.

[0025] 5. The present invention opens several fifth channels on the anti-theft cover body, which can improve the grease injection efficiency of the anti-theft grease injection valve; and the fifth channel is arranged close to the inner circumference of the third channel, and the central axis of the fifth channel intersects with the spherical center of the anti-theft cover body. Such an arrangement can prevent theft tools from opening the check valve, thereby reducing the risk of stealing oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a grease injection valve structure in the prior art;

[0027] Figure 2 A schematic structural diagram of the anti-theft grease injection valve provided by the present invention;

[0028] Figure 3 It is a structural diagram of the valve body;

[0029] Figure 4 This is a structural diagram of the local details of the anti-theft grease injection valve;

[0030] Figure 5 It is a structural diagram of the anti-theft cover;

[0031] Figure 6 This is a structural diagram of the anti-theft grease injection valve during installation and use.

[0032] The meanings of the symbols in the figure are as follows:

[0033] 1. Valve; 2. Grease injection valve; 3. Check valve; 4. Anti-theft valve body; 5. Positioning support sleeve; 6. Sealing gasket; 7. Anti-theft cover;

[0034] 11. Valve installation port;

[0035] 41. Main body; 42. Mounting platform; 43. First mounting hole; 44. First passage; 45. Second mounting hole; 46. Positioning slot;

[0036] 51. Support sleeve body; 52. Positioning boss; 53. Mounting interface; 54. Second channel; 55. Positioning sleeve; 56. Third channel; 57. Flow gap; 58. Mounting groove; 59. Connecting section;

[0037] 71. Anti-theft cover body; 72. Mounting portion; 73. Fourth channel; 74. Adjustment gasket; 75. Fifth channel. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0039] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0043] See attached Figure 1 -Attached Figure 6 As shown, the present invention provides an anti-theft grease injection valve, which is installed on a valve 1. The anti-theft grease injection valve includes: an anti-theft valve body 4, a positioning support sleeve 5 is installed inside the anti-theft valve body 4 along its axial direction, a check valve 3 is installed inside the positioning support sleeve 5, and a grease injection valve 2 is installed on the outer side of one end of the anti-theft valve body 4 along its radial direction, so that the grease injection channel formed by the grease injection valve 2, the anti-theft valve body 4 and the positioning support sleeve 5 is set at a right angle. After the anti-theft grease injection valve is installed on the valve 1, it can prevent the check valve 3 from being disassembled by criminals, greatly reducing the risk of pipeline oil theft.

[0044] Preferably, the anti-theft valve body 4 includes a main body 41, with a mounting platform 42 provided at one end thereof. A first mounting hole 43 is defined radially along the mounting platform 42, with the grease injection valve 2 connected to the first mounting hole 43. A second mounting hole 45 is defined axially along the main body 41, with the positioning support sleeve 5 connected to the second mounting hole 45. A first passage 44 is further defined axially along the main body 41 between the first mounting hole 43 and the second mounting hole 45, communicating with each other through the first mounting hole 43 and the second mounting hole 45.

[0045] Preferably, the positioning support sleeve 5 comprises a support sleeve body 51, the outer periphery of which is provided with a positioning boss 52 and a connecting section 59 that cooperates with the second mounting hole 45. A positioning groove 46 that cooperates with the positioning boss 52 is provided on one side of the second mounting hole 45. The positioning boss 52 is provided with an annular mounting groove 58, and a sealing gasket 6 is provided in the mounting groove 58. The sealing gasket 6 is used to seal between the anti-theft valve body 4 and the positioning support sleeve 5. A mounting interface 53 is provided on one side of the support sleeve body 51, and a valve mounting port 11 is provided on the valve 1. The mounting interface 53 is connected to the valve mounting port 11. A second channel 54 is provided inside the positioning support sleeve 5, and a check valve 3 is installed in the second channel 54. A positioning sleeve 55 is further provided on the other side of the support sleeve body 51, and a third channel 56 that communicates with the second channel 54 is provided in the positioning sleeve 55.

[0046] In the above embodiment, the anti-theft valve body includes first and second mounting holes, respectively, extending radially and axially. The first and second mounting holes are connected by a first passage. A grease injection valve and a positioning support sleeve are mounted in the first and second mounting holes, respectively. The positioning support sleeve includes second and third passages extending axially, and a check valve is mounted in the second passage. This arrangement allows the grease injection passages in the anti-theft grease injection valve to be arranged at right angles. Compared to existing grease injection valves, it is more difficult to remove both the check valve and the grease injection valve simultaneously, thus reducing the risk of pipeline oil theft.

[0047] In the above embodiment, although the risk of pipeline oil theft is reduced by setting the grease injection channel in the anti-theft grease injection valve at a right angle, there is still a risk of the oil being stolen by removing the grease injection valve and using tools to open the check valve.

[0048] Preferably, an anti-theft cover 7 is installed at the end of the positioning sleeve 55 . The anti-theft cover 7 includes a spherical anti-theft cover body 71 . The anti-theft cover body 71 is used to block the grease injection channel along the direction from the first channel 44 to the third channel 56 .

[0049] The diameter of the positioning sleeve 55 is smaller than the inner diameter of the second mounting hole 45, so that there is a mounting gap between the positioning sleeve 55 and the second mounting hole 45. The outer periphery of the anti-theft cover body 71 is provided with a mounting portion 72 with an L-shaped cross-section. An adjustment spacer 74 is provided between the mounting portion 72 and the end surface of the positioning sleeve 55. One side of the mounting portion 72 is sleeved on the end of the positioning sleeve 55 and is fixed relative to the positioning sleeve 55.

[0050] An annular channel is defined at the end of the third channel 56. A flow gap 57 is defined between the annular channel and the anti-theft cover body 71. A plurality of fourth channels 73 are uniformly defined along the circumference of the other side of the mounting portion 72. The fourth channels 73 only partially overlap the flow gap 57 in the axial direction. Grease can be injected into the valve through the first mounting hole 43, the first channel 44, the fourth channels 73, the flow gap 57, the third channel 56, and the check valve 3.

[0051] In the above embodiment, an anti-theft cover is installed at the end of the positioning sleeve. The anti-theft cover has a spherical anti-theft cover body. The anti-theft cover body can block the grease injection channel along the direction from the first channel to the third channel. In some cases, the anti-theft cover body can guide some theft tools to move in the opposite direction of the check valve, thereby preventing the check valve from being directly opened by theft tools, reducing the risk of stealing oil.

[0052] An annular channel is formed at the end of the third channel, and several fourth channels are evenly spaced around the circumference of the mounting portion. This allows grease to be smoothly injected into the valve via the fourth channel and the annular channel. Because the fourth channel and the flow gap are located close to the outer periphery of the anti-theft cover and only partially overlap axially, this grease injection channel design makes it easier to directly open the check valve using a thief's tool, further reducing the risk of oil theft.

[0053] In addition, an adjusting gasket is provided between the mounting portion and the positioning sleeve. The adjusting gasket can be used to adjust the axial distance between the fourth channel and the circulation gap. By increasing the thickness of the adjusting gasket, the axial distance between the fourth channel and the circulation gap can be increased, so that the grease can be more efficiently injected into the valve through the fourth channel and the circulation gap.

[0054] Preferably, a plurality of fifth channels 75 are formed on the anti-theft cover body 71 . The fifth channels 75 are arranged close to the inner circumference of the third channel 56 , and the central axis of the fifth channels 75 intersects with the spherical center O of the anti-theft cover body 71 .

[0055] In the above embodiment, several fifth channels are opened on the anti-theft cover body, which can improve the grease injection efficiency of the anti-theft grease injection valve; and the fifth channel is arranged close to the inner circumference of the third channel, and the central axis of the fifth channel intersects with the spherical center of the anti-theft cover body. Such an arrangement can prevent theft tools from opening the check valve, thereby reducing the risk of stealing oil.

[0056] The present invention also provides an assembly method for assembling the anti-theft grease injection valve onto a valve, the assembly method comprising:

[0057] S1: Assemble the check valve 3 into the second channel 54 of the positioning support sleeve 5;

[0058] S2: Install the sealing gasket 6 in the mounting groove 58 on the positioning boss 52, and sleeve the anti-theft cover 7 on the end of the positioning sleeve 55;

[0059] S3: Assemble the positioning support sleeve 5 into the second mounting hole 45 of the anti-theft valve body 4;

[0060] S4: Position the positioning support sleeve 5, assemble the installation interface 53 into the valve installation port 11, and then weld the anti-theft valve body 4 to the valve 1;

[0061] S5 : Assemble the grease injection valve 2 into the first mounting hole 43 of the anti-theft valve body 4 .

[0062] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An anti-theft grease injection valve, characterized by: The anti-theft grease injection valve is installed on the valve, and the anti-theft grease injection valve includes an anti-theft valve body, a positioning support sleeve is installed inside the anti-theft valve body along its axial direction, a check valve is installed inside the positioning support sleeve, and a grease injection valve is installed on the outer side of one end of the anti-theft valve body along its radial direction, so that the grease injection channel formed by the grease injection valve, the anti-theft valve body and the positioning support sleeve is arranged at a right angle; The anti-theft valve body comprises a main body, a mounting platform is provided at one end of the main body, a first mounting hole is provided along the radial direction of the mounting platform, the grease injection valve is connected to the first mounting hole, a second mounting hole is provided along the axial direction of the main body, and the positioning support sleeve is connected to the second mounting hole; a first passage is further provided between the first mounting hole and the second mounting hole along the axial direction of the main body, and the first mounting hole and the second mounting hole are connected through the first passage; A second channel is defined inside the positioning support sleeve, the check valve is installed in the second channel, the positioning support sleeve comprises a support sleeve body, a positioning sleeve is provided on the other side of the support sleeve body, and a third channel is defined inside the positioning sleeve that is in communication with the second channel; An anti-theft cover is installed at the end of the positioning sleeve, and the anti-theft cover has a spherical anti-theft cover body, and the anti-theft cover body is used to cover the grease injection channel along the direction from the first channel to the third channel; The diameter of the positioning sleeve is smaller than the inner diameter of the second mounting hole, so that there is a mounting gap between the positioning sleeve and the second mounting hole; the outer periphery of the anti-theft cover body is provided with a mounting portion with an L-shaped cross-section, and an adjustment gasket is provided between the mounting portion and the end face of the positioning sleeve, and one side of the mounting portion is sleeved onto the end of the positioning sleeve and is relatively fixed to the positioning sleeve.

2. The anti-theft grease injection valve according to claim 1, characterized in that: The outer periphery of the support sleeve body is provided with a positioning boss and a connecting section that cooperates with the second mounting hole; a positioning groove that cooperates with the positioning boss is opened on one side of the second mounting hole, and an annular mounting groove is opened on the positioning boss, and a sealing gasket is set in the mounting groove.

3. The anti-theft grease injection valve according to claim 2, characterized in that: A mounting interface is provided on one side of the support sleeve body, a valve mounting port is provided on the valve, and the mounting interface is connected to the valve mounting port.

4. The anti-theft grease injection valve according to claim 3, characterized in that: An annular channel is opened at the end of the third channel, and a flow gap exists between the annular channel and the anti-theft cover body. A plurality of fourth channels are evenly opened along the circumferential direction on the other side of the mounting portion, and the fourth channels only partially overlap with the flow gap in the axial direction.

5. The anti-theft grease injection valve according to claim 4, characterized in that: The anti-theft cover body is provided with a plurality of fifth channels, the fifth channels are arranged close to the inner circumference of the third channel, and the central axis of the fifth channels intersects with the spherical center of the anti-theft cover body.

6. An assembly method of the anti-theft grease injection valve according to claim 5, characterized in that: The assembly method comprises the following steps: S1: Assembling the check valve into the second channel of the positioning support sleeve; S2: Installing the sealing gasket in the installation groove on the positioning boss, and sleeve the anti-theft cover on the end of the positioning sleeve; S3: Fitting the positioning support sleeve into the second mounting hole of the anti-theft valve body; S4: Positioning with the positioning support sleeve, assembling the mounting interface into the valve mounting opening, and then welding the anti-theft valve body to the valve; S5: Assemble the grease injection valve into the first mounting hole of the anti-theft valve body.

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