Anti-theft gate valve

Abstract

The utility model provides an anti-theft gate valve which comprises a valve body, a valve cover is arranged at the top of the valve body, a valve rod is arranged in the valve cover, a valve seat is arranged in the valve body, a gate plate clamped with the valve seat in a sliding mode is arranged at the bottom of the valve rod, external pipelines are arranged at the two ends of the valve body, a protection mechanism is arranged on the outer side of the valve body, and a control mechanism for controlling the valve rod to ascend and descend is arranged at the top of the valve cover. The protection mechanism comprises a protection box, a lock cylinder and a movable disc, the protection box is fixedly arranged on the outer side of the valve body, the lock cylinder is arranged in the protection box, the movable disc is arranged at the bottom end of the lock cylinder and fixedly connected with a core rod of the lock cylinder, and an adjusting plate is clamped in the protection box in a sliding mode. The protective block and the protective cover plate arranged in the protective mechanism can shield the bolt between the valve body and the valve cover and the bolt between the valve body and the external pipeline under the fixation of the lock cylinder and the movable disc, so that the installed bolts cannot be detached without a protective key, and the safety of the valve is improved. Therefore, the assembly of the gate valve and an external pipeline is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to an anti-theft gate valve. Background Art

[0002] Gate valve is a common fluid control valve, usually used to open or close the flow of fluid in the pipeline. Gate valve has the advantages of simple structure, good sealing performance, small fluid resistance, etc. Gate valve is widely used in various industrial fields, including chemical industry, petroleum, natural gas, water treatment, water supply, sewage treatment, etc.

[0003] The prior art with patent number CN 219655402 U discloses: comprising a gate valve body, a valve seat is fixedly installed on the outer wall of the gate valve body, a push rod is slidably connected inside the valve seat, a valve is fixedly installed on the bottom of the push rod, one end of the push rod extends to the outside of the valve seat, a fixing column is fixedly installed on the upper end face of the valve seat, a cavity is opened on the inner wall of the fixing column, the push rod is slidably connected to the cavity, a limit assembly is fixedly and symmetrically installed on the outer wall of the push rod, a threaded rod is rotatably connected to the upper end face of the push rod, and a first threaded cylinder is fixedly installed on the upper end face of the fixing column. This anti-theft gate valve, by arranging a valve seat on the outer wall of the gate valve body and connecting the gate valve body to the valve seat by welding, can prevent the valve seat from being stolen during use;

[0004] The above patent document discloses an anti-theft gate valve to solve the problem of possible theft of the valve seat; although the anti-theft gate valve of the above patent can reduce the possibility of the valve seat being stolen by welding, it is found in the actual use of the gate valve that the inlet and outlet at both ends of the gate valve and the external pipeline are fixed with bolts. When the gate valve is in use, the thief can remove the bolts and take away the entire gate valve.

[0005] In summary, there is a need for an anti-theft gate valve that can be safely assembled and connected to an external pipeline. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an anti-theft gate valve, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An anti-theft gate valve comprises a valve body, a valve cover is arranged on the top of the valve body, a valve stem is arranged inside the valve cover, a valve seat is arranged inside the valve body, a gate plate is arranged at the bottom of the valve stem and is engaged and slid with the valve seat, external pipes are arranged at both ends of the valve body, a protective mechanism is arranged outside the valve body, and a control mechanism for controlling the lifting and lowering of the valve stem is arranged on the top of the valve cover;

[0009] The protection mechanism includes a protection box, a lock core and a movable disk. The protection box is fixedly arranged on the outside of the valve body, a lock core is arranged inside the protection box, a movable disk is arranged at the bottom end of the lock core, the movable disk is fixedly connected to the core rod of the lock core, an adjustment plate is engaged and slidably arranged inside the protection box, the movable disk is meshed and connected with the adjustment plate, a protection cover plate is arranged at the end of the adjustment plate, and the protection cover plate is a bent structure.

[0010] Furthermore, the protection mechanism also includes a protection vertical plate, a protection block and an adjusting rod. The protection vertical plate is engaged and slid with the protection box. A protection block is provided on the top of the protection vertical plate. The protection block is fitted with the bottom edge of the valve cover. An adjusting rod is provided at the bottom end of the protection vertical plate. The adjusting rod is engaged and connected with the protection vertical plate. The adjusting rod is engaged and slid with the protection box. The edge of the adjusting rod is engaged and connected with the movable disk.

[0011] Furthermore, a plurality of bolts are provided on the edge of the external pipe and the end of the valve body, and the bolts located above the two ends of the valve body correspond to the horizontal positions of the protective cover plate.

[0012] Furthermore, two groups of the protection mechanisms are provided on the outside of the valve body, and the two groups of protection mechanisms are distributed in a mirror image.

[0013] Furthermore, the control mechanism includes a control ring and an inner ring. The control ring is arranged at the top of the valve cover. The control ring is engaged and rotated with the valve cover. An inner ring is arranged on the inner side of the control ring. The inner ring is engaged and rotated with the control ring. The inner ring is threadedly connected to the valve stem. A protective cavity is arranged inside the control ring. A protective component is arranged inside the protective cavity. A handle is arranged on the outer side of the control ring.

[0014] Furthermore, the protection assembly includes a protection rod and a protection plug rod. The protection rod is in an L-shaped structure. The end of the protection rod is provided with a protection plug rod. The protection plug rod is snap-connected with the control ring and the inner ring.

[0015] Furthermore, the protection cavities are provided in multiple groups inside the control ring, and the protection cavities and the protection components are provided correspondingly.

[0016] The utility model provides an anti-theft gate valve. Compared with the prior art, it has the following beneficial effects:

[0017] Through the protection block and the protection cover plate arranged in the protection mechanism, the bolts between the valve body and the valve cover and the bolts between the valve body and the external pipeline can be shielded under the fixation of the lock core and the movable disk, so that the installation bolts cannot be removed without the protection key, thereby making the assembly of the gate valve and the external pipeline safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of an anti-theft gate valve of the utility model is shown;

[0020] Figure 2 The utility model is shown in a schematic diagram of the overall cross-section structure;

[0021] Figure 3 The schematic diagram of the structure of the protection mechanism of the utility model is shown;

[0022] Figure 4 A schematic diagram showing the movement of the protective cover plate of the utility model is shown;

[0023] Figure 5 The schematic diagram of the structure of the control mechanism of the utility model is shown;

[0024] Figure 6 The schematic diagram of the structure of the protection component of the utility model is shown;

[0025] As shown in the figure: 1. Valve body; 11. Valve seat; 2. Valve cover; 3. Valve stem; 31. Gate; 4. Protection mechanism; 41. Protection box; 42. Lock core; 43. Movable disk; 44. Protection vertical plate; 45. Protection block; 46. Adjustment rod; 47. Adjustment plate; 48. Protection cover plate; 5. Control mechanism; 51. Control ring; 52. Inner ring; 53. Handle; 54. Protection rod; 55. Protection plug rod; 6. External pipeline. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] In order to solve the technical problems in the background technology, the following anti-theft gate valve is provided:

[0029] Combination Figure 1-Figure 5As shown, the utility model provides an anti-theft gate valve, comprising a valve body 1, a valve cover 2 is provided on the top of the valve body 1, a valve stem 3 is provided inside the valve cover 2, a valve seat 11 is provided inside the valve body 1, a gate plate 31 is provided at the bottom of the valve stem 3 and is engaged and slidably engaged with the valve seat 11, external pipes 6 are provided at both ends of the valve body 1, and a protection mechanism 4 is provided on the outside of the valve body 1. The protection component can protect between the valve body 1 and the valve cover 2, and between the valve body 1 and the external pipe 6, so that it is difficult for thieves to disassemble. A control mechanism 5 for controlling the lifting and lowering of the valve stem 3 is provided on the top of the valve cover 2;

[0030] The protection mechanism 4 includes a protection box 41, a lock core 42 and a movable disk 43. The protection box 41 is fixedly arranged on the outside of the valve body 1. The protection box 41 is provided with a lock core 42 inside. The bottom end of the lock core 42 is provided with a movable disk 43. The movable disk 43 is fixedly connected to the core rod of the lock core 42. The lock core 42 is arranged so that the rotation of the movable disk 43 can only be rotated by a key matching the lock core 42, so that the movable disk 43 can safely control the movement of the adjustment plate 47 and the protection cover plate 48. The protection box 41 has an adjustment plate 47 that is engaged and slidable inside. The movable disk 43 is meshed and connected with the adjustment plate 47. A protection cover plate 48 is provided at the end of the adjustment plate 47. The protection cover plate 48 is a bent structure. The bent structure of the protection cover plate 48 is convenient for covering the outside of the connection between 1 and 6.

[0031] In this embodiment, the protection mechanism 4 also includes a protection vertical plate 44, a protection block 45 and an adjustment rod 46. The protection vertical plate 44 is engaged and slid with the protection box 41. A protection block 45 is provided on the top of the protection vertical plate 44. The protection block 45 is in contact with the bottom edge of the valve cover 2. An adjustment rod 46 is provided at the bottom end of the protection vertical plate 44. The adjustment rod 46 is engaged and connected with the protection vertical plate 44. The adjustment rod 46 is engaged and slid with the protection box 41. The edge of the adjustment rod 46 is meshed and connected with the movable disk 43. The movable plate 43 is used to drive the adjusting rod 46 to move, so that after the adjusting rod 46 is separated from the protective vertical plate 44, the protective vertical plate 44 and the protective block 45 can be removed from the top of the protective box 41, so as to stop the protective block 45 from protecting the valve cover 2, and facilitate the staff to disassemble and assemble the valve cover 2. When the protective vertical plate 44 and the protective block 45 are fixed to the protective box 41, they can cover the bolts fixing the valve cover 2 and the valve body 1, so that the bolts between the valve cover 2 and the valve body 1 cannot be disassembled, thereby preventing the valve cover 2 from being stolen;

[0032] In this embodiment, a plurality of bolts are provided at the edge of the external pipe 6 and the end of the valve body 1. The bolts located above the two ends of the valve body 1 correspond to the horizontal position of the protective cover plate 48. The protective cover plate 48 provided corresponding to the bolts above the two ends of the valve body 1 can cover one of the bolts after the valve body 1 and the external pipe 6 are fixed, so that the bolts between the valve body 1 and the external pipe 6 cannot be completely disassembled, thereby achieving the purpose of anti-theft of the gate valve;

[0033] In this embodiment, two groups of protection mechanisms 4 are provided on the outside of the valve body 1. The two groups of protection mechanisms 4 are distributed in a mirror image. The mirror image distribution of the protection mechanisms 4 facilitates the protection of both ends of the valve body 1.

[0034] The implementation principle of the first embodiment is as follows: when the gate valve is in use, multiple bolts are used to fix the valve body 1 at both ends with the external pipe 6, and multiple bolts are used to fix the valve body 1 at the top with the valve cover 2. At this time, the staff drives the movable disk 43 in the protection mechanism 4 to rotate through the key corresponding to the lock core 42, and the movable disk 43 drives the adjustment plate 47 and the protection cover plate 48 to move. The movable protection cover plate 48 will block the bolts between the valve body 1 and the external pipe 6, so that the bolts for installing the external pipe 6 cannot be removed, thereby preventing the gate valve from being dismantled and stolen under abnormal circumstances. At the same time, when the movable disk 43 rotates, the adjustment rod 46 will be inserted into the bottom of the protection vertical plate 44, the protection vertical plate 44 and the protection block 45 will be fixed above the protection box 41, and the protection block 45 will block the bolts connecting and fixing the valve body 1 and the valve cover 2, thereby preventing the valve cover 2 from being stolen.

[0035] Embodiment 2

[0036] like Figure 3-Figure 6 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0037] In order to prevent unauthorized persons from operating the gate valve when the gate valve is in use, the following design is provided in this embodiment:

[0038] The control mechanism 5 includes a control ring 51 and an inner ring 52. The control ring 51 is arranged at the top of the valve cover 2. The control ring 51 is engaged with the valve cover 2 for rotation. The inner ring 52 is arranged inside the control ring 51. The inner ring 52 is engaged with the control ring 51 for rotation. The inner ring 52 is threadedly connected to the valve stem 3. A protection cavity is arranged inside the control ring 51. A protection component is arranged inside the protection cavity. A handle 53 is arranged outside the control ring 51. The inner ring 52 threadedly connected to the valve stem 3 can control the valve stem 3 and the valve plate to rise and fall when rotating, so as to realize the opening and closing of the gate valve.

[0039] In this embodiment, the protection component includes a protection rod 54 and a protection plug rod 55. The protection rod 54 is L-shaped. The end of the protection rod 54 is provided with a protection plug rod 55. The protection plug rod 55 is engaged with the control ring 51 and the inner ring 52. The protection plug rod 55 provided in the protection component is a special-shaped setting, such as a triangular column, a shaped column, etc. The setting of the protection component can control whether the inner ring 52 and the control ring 51 rotate synchronously.

[0040] As an improvement of the above solution, multiple groups of protective cavities are provided inside the control ring 51, and the protective cavities are provided corresponding to the protective components. The provision of multiple groups of protective cavities facilitates multiple protective components to fix the connection between the inner ring 52 and the control ring 51;

[0041] The implementation principle of the second embodiment is: when it is necessary to control the lifting of the valve stem 3, the protection component is inserted into the protection cavity, and the protection plug 55 in the protection component will be inserted into the control ring 51 and the inner ring 52. In this way, when the staff rotates the control ring 51 through the handle 53, the inner ring 52 can rotate synchronously with the control ring 51 to control the lifting of the threaded valve stem 3. When the valve stem 3 does not need to be lifted, the staff takes away the protection component, and the inner ring 52 and the control ring 51 lose their fixation. At this time, an unauthorized person turns the handle 53 without authorization, and the control ring 51 rotates on the outside of the inner ring 52. The inner ring 52 will not drive the valve stem 3 to rise or fall, thereby enabling the gate valve to prevent unauthorized persons from operating the gate valve without authorization.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-theft gate valve, characterized in that: The invention comprises a valve body (1), a valve cover (2) is provided on the top of the valve body (1), a valve stem (3) is provided inside the valve cover (2), a valve seat (11) is provided inside the valve body (1), a gate plate (31) is provided at the bottom of the valve stem (3) and is engaged and slidable with the valve seat (11), external pipes (6) are provided at both ends of the valve body (1), a protective mechanism (4) is provided on the outside of the valve body (1), and a control mechanism (5) for controlling the lifting and lowering of the valve stem (3) is provided on the top of the valve cover (2); The protection mechanism (4) comprises a protection box (41), a lock core (42) and a movable disk (43); the protection box (41) is fixedly arranged on the outside of the valve body (1); a lock core (42) is arranged inside the protection box (41); a movable disk (43) is arranged at the bottom end of the lock core (42); the movable disk (43) is fixedly connected to the core rod of the lock core (42); an adjustment plate (47) is slidably engaged inside the protection box (41); the movable disk (43) is meshedly connected to the adjustment plate (47); a protection cover plate (48) is arranged at the end of the adjustment plate (47); and the protection cover plate (48) is in a bent structure.

2. The anti-theft gate valve according to claim 1, characterized in that: The protection mechanism (4) further comprises a protection vertical plate (44), a protection block (45) and an adjustment rod (46); the protection vertical plate (44) is engaged and slidably engaged with the protection box (41); a protection block (45) is provided on the top of the protection vertical plate (44); the protection block (45) is in contact with the bottom edge of the valve cover (2); an adjustment rod (46) is provided on the bottom end of the protection vertical plate (44); the adjustment rod (46) is engaged and connected with the protection vertical plate (44); the adjustment rod (46) is engaged and slidably engaged with the protection box (41); and the edge of the adjustment rod (46) is engaged and connected with the movable disk (43).

3. The anti-theft gate valve according to claim 1, characterized in that: A plurality of bolts are provided at the edge of the external pipe (6) and the end of the valve body (1), and the bolts located above the two ends of the valve body (1) correspond to the horizontal positions of the protective cover plate (48).

4. The anti-theft gate valve according to claim 1, characterized in that: Two groups of the protection mechanisms (4) are provided on the outside of the valve body (1), and the two groups of protection mechanisms (4) are distributed in a mirror-image manner.

5. The anti-theft gate valve according to claim 1, characterized in that: The control mechanism (5) comprises a control ring (51) and an inner ring (52); the control ring (51) is arranged at the top end of the valve cover (2); the control ring (51) and the valve cover (2) are engaged and rotated; an inner ring (52) is arranged on the inner side of the control ring (51); the inner ring (52) and the control ring (51) are engaged and rotated; the inner ring (52) and the valve stem (3) are threadedly connected; a protective cavity is arranged inside the control ring (51); a protective component is arranged inside the protective cavity; and a handle (53) is arranged on the outer side of the control ring (51).

6. The anti-theft gate valve according to claim 5, characterized in that: The protection assembly comprises a protection rod (54) and a protection plug rod (55); the protection rod (54) is in an L-shaped structure; the end of the protection rod (54) is provided with a protection plug rod (55); the protection plug rod (55) is snap-fitted and connected with the control ring (51) and the inner ring (52).

7. The anti-theft gate valve according to claim 5, characterized in that: The protection chambers are provided with a plurality of groups inside the control ring (51), and the protection chambers are provided correspondingly to the protection components.

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