Turbine flowmeter protection device and turbine flowmeter structure

Abstract

The utility model relates to the technical field of turbine flowmeter application, in particular to a protection device of a turbine flowmeter and a turbine flowmeter structure, the protection device comprises a device base and a shell arranged on the base, the shell is used for containing the turbine flowmeter, and an opening is formed in the side wall of the shell; an oil cup protection cover is further included, and the oil cup protection cover is arranged on the shell in a sliding mode and can shield the opening. An opening is formed in the side wall of the shell, the oil cup is installed on the outer side of the shell through the opening, so that lubricating oil can be conveniently added to the oil cup on the outer side of the shell, the maintenance efficiency is improved, the oil cup protection cover is arranged on the shell in a sliding mode, the opening can be shielded by the oil cup protection cover, and when the lubricating oil needs to be added, the oil cup protection cover can cover the opening. The oil cup protection cover slides away, the oil cup is exposed, lubricating oil is added, after the lubricating oil is added, the oil cup protection cover slides back, the oil cup is shielded through the oil cup protection cover, and the oil cup continues to be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine flowmeter application, in particular to a turbine flowmeter protection device and a turbine flowmeter structure. Background Art

[0002] The working principle of the turbine flowmeter is based on the turbine momentum theorem, that is, the turbine will rotate when it is acted upon by the fluid. When the gas flows through the turbine flowmeter, the fluid causes the turbine inside the device to rotate, and the rotation speed of the turbine is proportional to the fluid speed. By measuring the rotation speed of the turbine, the flow rate of the fluid can be determined.

[0003] For example, a Chinese patent with patent publication number CN212513190U discloses a protective device dedicated to a gas turbine flowmeter. By setting an adjustment mechanism on the inner side of the lower protective cover, the second screw can be driven to rotate by a handle, the second screw drives the gear to rotate, the gear drives the first screw to rotate, the first screw drives the slide to move, and the slide drives the upper protective cover to move as a whole to the upper end, which can meet the protection of gas turbine flowmeters at different heights, etc. It utilizes the relative movement of the upper and lower protective covers to adjust the overall height of the protective device to adapt to gas turbine flowmeters of different specifications.

[0004] However, traditional gas turbine flowmeters need to add lubricating oil to the oil cup after a period of use, and in existing devices, the gas turbine flowmeter is generally placed entirely in a protective cover, which is inconvenient for the operator to perform subsequent maintenance on the gas turbine flowmeter, reducing the maintenance efficiency of the gas turbine flowmeter itself. Utility Model Content

[0005] The purpose of the utility model is to provide a turbine flowmeter protection device and a turbine flowmeter structure to address the problem that traditional gas turbine flowmeters in the background technology need to add lubricating oil to the oil cup after being used for a period of time, and in existing devices, the gas turbine flowmeter is generally placed entirely in a protective cover, which is inconvenient for the operator to perform subsequent maintenance on the gas turbine flowmeter.

[0006] In a first aspect, a protection device for a turbine flowmeter described in the present application comprises a device base and a shell disposed on the base, the shell being used to accommodate the turbine flowmeter, and an opening being disposed on a side wall of the shell;

[0007] It also includes an oil cup protection cover, which is slidably arranged on the shell body and can cover the opening.

[0008] The present invention discloses a protective device for a turbine flowmeter, comprising a device base and a shell arranged on the base, wherein the shell is used to accommodate the turbine flowmeter, thereby protecting the turbine flowmeter and preventing the turbine flowmeter from being damaged. At the same time, an opening is arranged on the side wall of the shell, and after the turbine flowmeter is installed in the shell, the oil filling pipe of the turbine flowmeter passes through the opening and is located outside the shell, and then the oil cup is connected to the oil filling pipe, thereby facilitating the addition of lubricating oil to the oil cup outside the shell, facilitating the operator to perform later maintenance on the gas turbine flowmeter, and improving the maintenance efficiency of the gas turbine flowmeter body. Furthermore, the protective cover for the oil cup is slidably arranged on the shell, The oil cup protection cover can cover the opening. After the oil cup is installed on the outside of the shell, the oil cup protection cover covers the opening area to protect the oil cup and prevent the oil cup from being damaged on the outside of the shell. In addition, since the oil cup protection cover is slidably arranged on the shell, when lubricating oil needs to be added, the oil cup protection cover is slid away to expose the oil cup for adding lubricating oil. After the lubricating oil is added, the oil cup protection cover is slid back to cover the oil cup through the oil cup protection cover to continue to protect the oil cup. The protection device of the turbine flowmeter of the present application not only improves the maintenance efficiency of the gas turbine flowmeter body, but also improves the practicability of the protection device.

[0009] Preferably, it further comprises a slide groove arranged on the side wall of the shell, and a slide rail is arranged on the oil cup protective cover, and the slide rail is slidably matched with the slide groove.

[0010] The sliding groove on the shell body cooperates with the sliding rail on the oil cup protection cover, thereby realizing the sliding of the oil cup protection cover on the shell body.

[0011] Preferably, the slide groove is vertically arranged on the shell, and the oil cup protection cover slides vertically through the slide groove.

[0012] Preferably, it further comprises a supporting shell, wherein the supporting shell is connected to the oil cup protective cover;

[0013] A vertically arranged mounting plate is also connected to the side wall of the shell, and a side of the support shell away from the oil cup protective cover is slidably connected to the mounting plate, and the support shell is used to drive the oil cup protective cover to move vertically.

[0014] Since the mounting plate is vertically arranged on the side wall of the shell, the supporting shell is slidably connected to the mounting plate, and the supporting shell is connected to the oil cup protective cover. When the oil cup protective cover needs to be moved, the supporting shell is moved to slide relative to the mounting plate, thereby driving the oil cup protective cover to move on the shell, thereby facilitating the movement of the oil cup protective cover to expose the oil cup and facilitate adding lubricating oil to the oil cup.

[0015] Preferably, a gear is rotatably connected to the inner wall of the support shell, a rack is provided on one side of the mounting plate close to the support shell, and the gear cooperates with the rack;

[0016] It also includes a limiting rod slidably connected to the support shell, the top end of the limiting rod extends outside the support shell, the bottom end of the limiting rod is located inside the support shell, and the bottom end of the limiting rod has a convex portion, which is used to clamp the gear.

[0017] After the support shell drives the oil cup protective cover to move until the oil cup is exposed, the limiting rod is pressed down so that the convex part at the bottom end of the limiting rod is stuck in the tooth groove of the gear, thereby clamping the gear and preventing the gear from rotating, and further preventing the gear from moving relative to the rack, that is, the position of the support shell together with the oil cup protective cover is restricted above the oil cup, which facilitates the refueling operation of the oil cup of the gas turbine flowmeter. After refueling, the limiting rod is pulled upward to release the restriction of the limiting rod on the gear, that is, the support shell is pushed downward, and the support shell drives the oil cup protective cover to descend together until the oil cup protective cover covers the oil cup.

[0018] Preferably, a fixing plate is further provided at the bottom of the limiting rod, the fixing plate is located above the convex portion, a fixing rod is connected to the inner wall of the supporting shell, the fixing plate is slidably connected to the fixing rod, and a spring is sleeved on the fixing rod, one end of the spring is on the inner wall of the supporting shell, and the other end of the spring abuts against the fixing plate;

[0019] The spring is in a compressed state.

[0020] A fixing rod is arranged on the inner wall of the supporting shell, a fixing plate is arranged at the bottom of the limiting rod, the fixing plate is slidably connected to the fixing rod, and a spring is sleeved on the fixing rod, the spring is located between the fixing plate and the inner wall of the supporting shell. When the limiting rod is not pulled upward, since the spring is in a compressed state, the spring applies an elastic force toward the direction of the gear to the fixing plate, so that the fixing plate drives the limiting rod to move in the direction of the gear. After the convex portion of the limiting rod is clamped on the gear, the compressed spring can make the convex portion of the limiting rod stably limit the gear, thereby effectively preventing the limiting rod from being separated from the gear, thereby improving the stability of the protective device.

[0021] Preferably, a through hole is provided on the fixing plate, and one end of the fixing rod close to the fixing plate passes through the through hole.

[0022] Preferably, the top of the shell has a protective top cover, and the protective top cover is detachably connected to the top of the shell.

[0023] Since the protective top cover is detachably connected to the top of the shell, it is convenient to remove the protective top cover to debug the flow unit of the turbine flowmeter body, and it is convenient to adjust the gas turbine flowmeter body installed with the shell, which not only improves the flexibility of the protective device, but also improves the practicality of the protective device.

[0024] Preferably, a rotating shaft is provided on the protective top cover, and the rotating shaft passes through the protective top cover;

[0025] One end of the rotating shaft extending to the outside of the protective top cover is connected to a rotating plate, and one end of the rotating shaft extending into the shell is connected to a clamping plate. A U-shaped block is provided on the inner side of the side wall of the shell, and the rotating plate is used to be clamped in the groove of the U-shaped block.

[0026] When the flow unit of the turbine flowmeter needs to be debugged, the rotating plate is rotated to drive the rotating shaft to rotate, and the rotating shaft then drives the clamping plate to rotate, so that the clamping plate leaves the groove of the U-shaped block, so that the clamping plate is not restricted by the U-shaped block, and then the rotating plate is pulled to remove the protective top cover from the shell, and then the operator can operate the turbine flowmeter.

[0027] In a second aspect, the present application also discloses a turbine flowmeter structure, including a turbine flowmeter and a turbine flowmeter protection device as described in the present application, wherein the turbine flowmeter is placed in the shell, the refueling pipe of the turbine flowmeter passes through the opening and extends to the outside of the shell, the refueling pipe is connected to an oil cup at one end away from the turbine flowmeter, the oil cup protection cover covers the opening, and the oil cup is located inside the oil cup protection cover.

[0028] A turbine flowmeter structure of the present application includes a turbine flowmeter and a protective device for the turbine flowmeter as described in the present application. The shell is used to accommodate the turbine flowmeter. An opening is provided on the side wall of the shell. The refueling pipe of the turbine flowmeter passes through the opening and is located outside the shell. The oil cup is then connected to the refueling pipe, so that it is convenient to add lubricating oil to the oil cup outside the shell, which is convenient for the operator to perform later maintenance on the gas turbine flowmeter. Furthermore, the oil cup protective cover blocks the opening, and the oil cup is located in the oil cup protective cover, so that the oil cup protective cover blocks the oil cup, thereby protecting the oil cup and preventing the oil cup from being damaged on the outside of the shell. When it is necessary to add lubricating oil, the oil cup protective cover is slid away to expose the oil cup, and lubricating oil is added. After the lubricating oil is added, the oil cup protective cover is slid back, and the oil cup is blocked by the oil cup protective cover to continue to protect the oil cup.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] 1. A protective device for a turbine flowmeter of the present application comprises a device base and a shell arranged on the base, wherein the shell is used to accommodate the turbine flowmeter, thereby protecting the turbine flowmeter and preventing the turbine flowmeter from being damaged. At the same time, an opening is arranged on the side wall of the shell. After the turbine flowmeter is installed in the shell, the refueling pipe of the turbine flowmeter passes through the opening and is located outside the shell, and then the oil cup is connected to the refueling pipe, thereby facilitating the addition of lubricating oil to the oil cup outside the shell, facilitating the operator to perform later maintenance on the gas turbine flowmeter, and improving the maintenance efficiency of the gas turbine flowmeter body. Furthermore, it also comprises an oil cup protective cover, which is slidably arranged on the shell. , and the oil cup protection cover blocks the opening area. After the oil cup is installed on the outside of the shell, the oil cup protection cover blocks the opening area to make the oil cup protection cover block the oil cup, thereby protecting the oil cup and preventing the oil cup from being damaged on the outside of the shell. In addition, since the oil cup protection cover is slidably arranged on the shell, when it is necessary to add lubricating oil, the oil cup protection cover is slid away to expose the oil cup for adding lubricating oil. After the lubricating oil is added, the oil cup protection cover is slid back and the oil cup is blocked by the oil cup protection cover to continue to protect the oil cup. The protection device of the turbine flowmeter of the present application not only improves the maintenance efficiency of the gas turbine flowmeter body, but also improves the practicability of the protection device.

[0031] 2. A turbine flowmeter structure of the present application includes a turbine flowmeter and a protective device for a turbine flowmeter as described in the present application, wherein a shell is used to accommodate the turbine flowmeter, and an opening is provided on the side wall of the shell, and a refueling pipe of the turbine flowmeter passes through the opening and is located outside the shell, and then the oil cup is connected to the refueling pipe, so as to facilitate the addition of lubricating oil to the oil cup outside the shell, and facilitate the operator to perform later maintenance of the gas turbine flowmeter, and further, the oil cup protective cover blocks the opening, and the oil cup is located in the oil cup protective cover, so that the oil cup protective cover blocks the oil cup, thereby protecting the oil cup and preventing the oil cup from being damaged on the outside of the shell, and when it is necessary to add lubricating oil, the oil cup protective cover is slid away to expose the oil cup, and lubricating oil is added, and after the lubricating oil is added, the oil cup protective cover is slid back, and the oil cup is blocked by the oil cup protective cover to continue to protect the oil cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional diagram of the turbine flowmeter structure of the present application.

[0033] Figure 2 It is a three-dimensional protective device of the present application. Figure 1 .

[0034] Figure 3 It is a three-dimensional protective device of the present application. Figure 2 (Shows oil cup).

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the protection device of the present application.

[0036] Figure 5 It is a cross-sectional enlarged structural schematic diagram of the protection device of the present application.

[0037] Figure 6 yes Figure 5 A partial enlarged view of point A.

[0038] Figure 7 yes Figure 6 A partial enlarged view of point B.

[0039] Figure 8 The oil cup protective cover of this application is three-dimensional Figure 1 .

[0040] Fig. 9 The oil cup protective cover of this application is three-dimensional Figure 2 .

[0041] Fig.10 It is a schematic diagram of the cooperation between the oil cup protective cover and the shell of the present application.

[0042] Fig.11 This is a schematic diagram of the protective cover of this application in the shell Figure 1 .

[0043] Fig.12 This is a schematic diagram of the protective cover of this application in the shell Figure 2 .

[0044] Markings in the figure: 1-base, 101-slot, 2-shell, 3-opening, 4-protective top cover, 5-turbine flowmeter, 51-oil cup, 52-fueling pipe, 6-oil cup protective cover, 61-left side plate, 62-right side plate, 63-upper side plate, 64-top plate, 7-rubber pad, 8-first observation window, 9-sliding rail, 10-support shell, 11-gear, 12-limiting rod, 121-protrusion, 13-pull ring, 14-fixing rod, 15-fixing plate, 16-spring, 17-rack, 18-mounting plate, 19-rotating plate, 20-rotating shaft, 21-card plate, 22-U-shaped block, 23-slide groove, 24-blocking plate, 25-second observation window. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0046] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0047] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0048] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0049] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0050] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0051] Example 1

[0052] like Figure 1-Figure 4 As shown, a protection device for a turbine flowmeter in this embodiment includes a base 1 and a shell 2 disposed on the base 1, the shell 2 is used to accommodate a turbine flowmeter 5, and an opening 3 is disposed on a side wall of the shell 2;

[0053] It also includes an oil cup protection cover 6 , which is slidably disposed on the housing 2 , and the oil cup protection cover 6 can cover the opening 3 .

[0054] The shell 2 is used to accommodate the turbine flowmeter 5, so as to protect the turbine flowmeter 5 and prevent the turbine flowmeter 5 from being damaged. At the same time, an opening 3 is provided on the side wall of the shell 2. After the turbine flowmeter 5 is installed in the shell 2, the refueling pipe 52 of the turbine flowmeter 5 passes through the opening 3 and is located outside the shell 2. Then the oil cup 51 is connected to the refueling pipe 52, so as to facilitate the addition of lubricating oil to the oil cup 51 outside the shell 2, and facilitate the operator to perform later maintenance on the gas turbine flowmeter 5, thereby improving the maintenance efficiency of the gas turbine flowmeter 5 body. Furthermore, it also includes an oil cup protective cover 6, which is slidably arranged on the shell 2, and the oil cup protective cover 6 can cover the opening 3, and the oil cup 5 After the oil cup 51 is installed on the outer side of the housing 2, the oil cup protective cover 6 covers the opening 3 area, so that the oil cup protective cover 6 covers the oil cup 51, thereby protecting the oil cup 51 and preventing the oil cup 51 from being damaged on the outer side of the housing 2. In addition, since the oil cup protective cover 6 is slidably arranged on the housing 2, when it is necessary to add lubricating oil, the oil cup protective cover 6 is slid away to expose the oil cup 51, and the lubricating oil is added. After the lubricating oil is added, the oil cup protective cover 6 is slid back to cover the oil cup 51 through the oil cup protective cover 6 to continue to protect the oil cup 51. The protection device of the turbine flowmeter of this embodiment not only improves the maintenance efficiency of the gas turbine flowmeter 5 body, but also improves the practicality of the protection device.

[0055] like Figure 2 , Figure 8-Figure 10 As shown, it also includes a slide groove 23 arranged on the side wall of the shell 2, and a slide rail 9 is arranged on the oil cup protection cover 6, and the slide rail 9 is slidably matched with the slide groove 23.

[0056] The sliding groove 23 on the housing 2 cooperates with the sliding rail 9 on the oil cup protection cover 6 , thereby achieving sliding of the oil cup protection cover 6 on the housing 2 .

[0057] like Figure 2-Figure 4 As shown, the slide groove 23 is vertically arranged on the side wall of the housing 2 , and the oil cup protection cover 6 slides vertically through the slide groove 23 .

[0058] When it is necessary to add lubricating oil, the oil cup protective cover 6 is slid vertically upward to expose the oil cup 51 and add lubricating oil. After adding lubricating oil, the oil cup protective cover 6 is slid vertically back downward to cover the oil cup 51 with the oil cup protective cover 6 to continue to protect the oil cup 51.

[0059] A preferred method is as follows Figure 8-Figure 10 As shown, the oil cup protective cover 6 is assembled by a left side plate 61, a right side plate 62, an upper side plate 63 and a top plate 64. A sliding rail 9 is provided on the side of the left side plate 61 and the right side plate 62 close to the shell 2, and the sliding rail 9 is slidably matched with the slide groove 23 on the shell 2.

[0060] In a preferred manner, the oil cup protective cover 6 is further provided with a first observation window 8 , and the first observation window 8 is mounted on the top plate 64 .

[0061] In a preferred manner, a slot 101 is provided on the base 1, and when the oil cup protective cover 6 slides downward on the shell 2, the left side plate 61 and the right side plate 62 of the oil cup protective cover 6 can be inserted into the slot 101 on the base 1, and further, rubber pads 7 are provided at the bottom of the left side plate 61 and the right side plate 62 to protect the left side plate 61 and the right side plate 62.

[0062] In a preferred manner, the cross section of the sliding rail 9 is T-shaped, and the shape of the slide groove 23 matches the shape of the sliding rail 9. By setting the cross section of the sliding rail 9 to be T-shaped, the connection between the slide groove 23 and the sliding rail 9 is more firmly established, thereby avoiding the situation where the oil cup protective cover 6 is separated from the shell 2, and improving the stability of the protective device.

[0063] like Figure 1 As shown, it also includes a support shell 10, and the support shell 10 is connected to the oil cup protection cover 6;

[0064] like Figure 2-Figure 4 As shown, a vertically arranged mounting plate 18 is also connected to the side wall of the shell 2, and the side of the support shell 10 away from the oil cup protective cover 6 is slidably connected to the mounting plate 18, and the support shell 10 is used to drive the oil cup protective cover 6 to move vertically.

[0065] Since the mounting plate 18 is vertically arranged on the side wall of the shell 2, the support shell 10 is slidably connected to the mounting plate 18, and the support shell 10 is connected to the oil cup protective cover 6. When the oil cup protective cover 6 needs to be moved, the support shell 10 is moved to slide relative to the mounting plate 18, thereby driving the oil cup protective cover 6 to move on the shell 2, thereby facilitating the movement of the oil cup protective cover 6 to expose the oil cup 51, thereby facilitating the addition of lubricating oil to the oil cup 51.

[0066] like Figure 5-Figure 6As shown, a gear 11 is rotatably connected to the inner wall of the support shell 10, and a rack 17 is provided on the side of the mounting plate 18 close to the support shell 10, and the gear 11 cooperates with the rack 17;

[0067] It also includes a limiting rod 12 slidably connected to the supporting shell 10 , the top end of the limiting rod 12 extends outside the supporting shell 10 , the bottom end of the limiting rod 12 is located inside the supporting shell 10 , and a convex portion 121 is provided at the bottom end of the limiting rod 12 , and the convex portion 121 is used to clamp the gear 11 .

[0068] After the support shell 10 drives the oil cup protection cover 6 to move to the oil cup 51 to be exposed, the limiting rod 12 is pressed down so that the convex portion 121 at the bottom end of the limiting rod 12 is inserted into the tooth groove of the gear 11, as shown in FIG. Figure 7 , to clamp the gear 11 so that the gear 11 cannot rotate, and further the gear 11 cannot move relative to the rack 17, that is, the position of the support shell 10 together with the oil cup protective cover 6 is restricted above the oil cup 51, so as to facilitate the refueling operation of the oil cup 51 of the gas turbine flowmeter 5. After the refueling is completed, first pull the limiting rod 12 upward to release the restriction of the limiting rod 12 on the gear 11. While keeping the limiting rod 12 pulled upward, push the support shell 10 downward again, and the support shell 10 drives the oil cup protective cover 6 to descend together until the oil cup protective cover 6 covers the oil cup 51.

[0069] A preferred method is as follows Figure 7 As shown, the top end of the limiting rod 12 extends outside the supporting shell 10 and is connected to a pull ring 13, through which the limiting rod 12 is easily pulled. For example, by pulling the pull ring 13 upward, the restriction of the limiting rod 12 on the gear 11 is released.

[0070] like Figure 6-Figure 7 As shown, a fixing plate 15 is further provided at the bottom of the limiting rod 12, and the fixing plate 15 is located above the convex portion 121. A fixing rod 14 is connected to the inner wall of the supporting shell 10, and the fixing plate 15 is slidably connected to the fixing rod 14. A spring 16 is sleeved on the fixing rod 14, and one end of the spring 16 is on the inner wall of the supporting shell 10, and the other end of the spring 16 abuts against the fixing plate 15.

[0071] The spring 16 is in a compressed state.

[0072] By arranging a fixing rod 14 on the inner wall of the supporting shell 10, and arranging a fixing plate 15 at the bottom of the limiting rod 12, the fixing plate 15 is slidably connected to the fixing rod 14, and a spring 16 is sleeved on the fixing rod 14, and the spring 16 is located between the fixing plate 15 and the inner wall of the supporting shell 10. When the limiting rod 12 is not pulled upward, since the spring 16 is in a compressed state, the spring 16 applies an elastic force to the fixing plate 15 in the direction of the gear 11, so that the fixing plate 15 drives the limiting rod 12 to move in the direction of the gear 11. After the convex portion 121 of the limiting rod 12 is clamped on the gear 11, the compressed spring 16 can make the convex portion 121 of the limiting rod 12 stably limit the gear 11, thereby effectively preventing the limiting rod 12 from being separated from the gear 11, thereby improving the stability of the protective device.

[0073] A preferred method is as follows Figure 7 As shown, the fixing plate 15 is provided with a through hole, and one end of the fixing rod 14 near the fixing plate 15 passes through the through hole. When the fixing plate 15 needs to move, since the fixing plate 15 is provided with a through hole, the fixing rod 14 passes through the through hole, so that the fixing plate 15 can slide on the fixing rod 14.

[0074] Through the above structural design, when the gas turbine flowmeter 5 needs to be refueled, the pull ring 13 is pulled upward, thereby driving the limiting rod 12 to slide upward relative to the support shell 10, and the fixing plate 15 slides upward relative to the fixing rod 14, so that the convex portion 121 at the bottom of the limiting rod 12 leaves the gear 11, thereby releasing the restriction of the limiting rod 12 on the gear 11. As the pull ring 13 continues to be pulled, the fixing plate 15 of the limiting rod 12 compresses the spring 16 and drives the support shell 10 to rise. The support shell 10 rises relative to the mounting plate 18, thereby driving the gear 11 to move relative to the rack 17, that is, the gear 11 rotates, and the rise of the support shell 10 will drive the oil cup protective cover 6 to rise synchronously. After the oil cup protective cover 6 is in a suitable position, the support shell 10 is supported, the pull ring 13 is released, and the elastic force of the spring 16 Under the action of, the fixing plate 15 is driven to slide downward along the fixing rod 14, that is, the pull ring 13 is loosened, and under the action of the elastic force of the spring 16, the limiting rod 12 slides in the direction of the gear 11, so that the convex part 121 of the limiting rod 12 clamps the gear 11, so that the gear 11 cannot rotate, and then the gear 11 cannot move relative to the rack 17, that is, the position of the supporting shell 10 together with the oil cup protective cover 6 is restricted, and the gas turbine flowmeter 5 body can be refueled. After the refueling is completed, the pull ring 13 is first pulled upward to release the restriction of the limiting rod 12 on the gear 11. Without loosening the pull ring 13, the supporting shell 10 and the oil cup protective cover 6 are pushed downward, so that the rubber pad 7 of the oil cup protective cover 6 is inserted into the slot 101 on the device base 1, and then the pull ring 13 is loosened to make the limiting rod 12 clamp the gear 11.

[0075] A preferred method is as follows Figure 2 , Figure 6 As shown, a blocking plate 24 is laterally arranged at the bottom of the mounting plate 18. Since the supporting shell 10 is placed on the blocking plate 24, the blocking plate 24 supports the supporting shell 10. When the supporting shell 10 slides downward and abuts against the blocking plate 24, the supporting shell 10 stops sliding, and then the pull ring 13 is opened to allow the limiting rod 12 to clamp the gear 11, wherein the position of the blocking plate 24 corresponds to the position of the opening 3 on the shell 2, so that when the supporting shell 10 abuts against the blocking plate 24, the oil cup protective cover 6 can cover the opening 3, and the oil cup 51 is located inside the oil cup protective cover 6.

[0076] Example 2

[0077] On the basis of Example 1, Figure 10-11 As shown, a protection device for a turbine flowmeter in this embodiment has a protection top cover 4 on the top of the shell 2 , and the protection top cover 4 is detachably connected to the top of the shell 2 .

[0078] Since the protective top cover 4 is detachably connected to the top of the shell 2, it is convenient to remove the protective top cover 4 to debug the flow unit of the turbine flowmeter 5 body, and it is convenient to adjust the gas turbine flowmeter body installed on the top of the shell 2, which not only improves the flexibility of the protective device, but also improves the practicality of the protective device.

[0079] like Fig.10 and Fig.11 As shown, a rotating shaft 20 is provided on the protective top cover 4, and the rotating shaft 20 passes through the protective top cover 4;

[0080] One end of the rotating shaft 20 extending to the outside of the protective top cover 4 is connected to the rotating plate 19, and one end of the rotating shaft 20 extending into the shell 2 is connected to the clamping plate 21. A U-shaped block 22 is provided on the inner side of the side wall of the shell 2, and the rotating plate 19 is used to be clamped in the groove of the U-shaped block 22.

[0081] When the flow unit of the turbine flowmeter 5 needs to be debugged, the rotating plate 19 is rotated, the rotating plate 19 drives the rotating shaft 20 to rotate, and the rotating shaft 20 further drives the clamping plate 21 to rotate, so that the clamping plate 21 leaves the groove of the U-shaped block 22, so that the clamping plate 21 is not restricted by the U-shaped block 22, and then the rotating plate 19 is pulled to remove the protective top cover 4 from the housing 2, and then the operator can operate the turbine flowmeter;

[0082] When installing the protective top cover 4, first place the protective top cover 4 on the top of the shell 2, and then rotate the rotating plate 19. The rotating plate 19 drives the rotating shaft 20 to rotate, and the rotating shaft 20 then drives the clamping plate 21 to rotate, so that the clamping plate 21 is clamped in the groove of the U-shaped block 22 to achieve the installation of the protective top cover 4.

[0083] During installation or removal of the protective cover 4 , the matching state of the clamping plate 21 and the U-shaped block 22 can be observed through the second observation window 25 provided on the housing 2 , so as to adaptively rotate the rotating plate 19 .

[0084] Example 3

[0085] like Figure 1-Figure 12 As shown, on the basis of Example 1 or Example 2, a turbine flowmeter structure of the present application includes a turbine flowmeter 5 and a protective device of a turbine flowmeter as in Example 1 or Example 2, the turbine flowmeter 5 is placed in the shell 2, the refueling pipe 52 of the turbine flowmeter 5 passes through the opening 3 and extends to the outside of the shell 2, the end of the refueling pipe 52 away from the turbine flowmeter 5 is connected to the oil cup 51, the oil cup protective cover 6 blocks the opening 3, and the oil cup 51 is located in the oil cup protective cover 6.

[0086] like Figure 4 As shown, the shell 2 is used to accommodate the turbine flowmeter 5. An opening 3 is provided on the side wall of the shell 2. The refueling pipe 52 of the turbine flowmeter 5 passes through the opening 3 and is located on the outside of the shell 2. Then the oil cup 51 is connected to the refueling pipe 52, so as to facilitate the addition of lubricating oil to the oil cup 51 on the outside of the shell 2, and facilitate the operator to perform later maintenance on the gas turbine flowmeter 5. Furthermore, the oil cup protective cover 6 blocks the opening 3, and the oil cup 51 is located in the oil cup protective cover 6, so that the oil cup protective cover 6 blocks the oil cup 51, thereby protecting the oil cup 51 and preventing the oil cup 51 from being damaged on the outside of the shell 2. When it is necessary to add lubricating oil, the oil cup protective cover 6 is slid away to expose the oil cup 51, and lubricating oil is added. After the lubricating oil is added, the oil cup protective cover 6 is slid back, and the oil cup 51 is blocked by the oil cup protective cover 6 to continue to protect the oil cup 51.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protection device for a turbine flowmeter, characterized in that: It comprises a base (1) and a shell (2) arranged on the base (1), the shell (2) is used to accommodate a turbine flowmeter (5), and an opening (3) is arranged on a side wall of the shell (2); It also comprises an oil cup protection cover (6), wherein the oil cup protection cover (6) is slidably arranged on the housing (2), and the oil cup protection cover (6) is capable of covering the opening (3).

2. A protection device for a turbine flowmeter according to claim 1, characterized in that: It also includes a slide groove (23) arranged on the side wall of the shell (2), and a slide rail (9) is arranged on the oil cup protection cover (6), and the slide rail (9) is slidably matched with the slide groove (23).

3. A protection device for a turbine flowmeter according to claim 2, characterized in that: The slide groove (23) is vertically arranged on the housing (2), and the oil cup protection cover (6) slides vertically through the slide groove (23).

4. A protection device for a turbine flowmeter according to claim 3, characterized in that: It also includes a support shell (10), wherein the support shell (10) is connected to the oil cup protection cover (6); A vertically arranged mounting plate (18) is also connected to the side wall of the shell (2); a side of the support shell (10) away from the oil cup protective cover (6) is slidably connected to the mounting plate (18); and the support shell (10) is used to drive the oil cup protective cover (6) to move vertically.

5. A protection device for a turbine flowmeter according to claim 4, characterized in that: A gear (11) is rotatably connected to the inner wall of the support shell (10); a rack (17) is provided on a side of the mounting plate (18) close to the support shell (10); and the gear (11) cooperates with the rack (17); It also includes a limiting rod (12) slidably connected to the support shell (10), the top end of the limiting rod (12) extends outside the support shell (10), the bottom end of the limiting rod (12) is located inside the support shell (10), and the bottom end of the limiting rod (12) has a convex portion (121), and the convex portion (121) is used to clamp the gear (11).

6. A protection device for a turbine flowmeter according to claim 5, characterized in that: A fixing plate (15) is also provided at the bottom of the limiting rod (12), and the fixing plate (15) is located above the protrusion (121). A fixing rod (14) is connected to the inner wall of the supporting shell (10), and the fixing plate (15) is slidably connected to the fixing rod (14). A spring (16) is sleeved on the fixing rod (14), and one end of the spring (16) is on the inner wall of the supporting shell (10), and the other end of the spring (16) abuts against the fixing plate (15). The spring (16) is in a compressed state.

7. A protection device for a turbine flowmeter according to claim 6, characterized in that: The fixing plate (15) is provided with a through hole, and one end of the fixing rod (14) close to the fixing plate (15) passes through the through hole.

8. A turbine flowmeter protection device according to any one of claims 1 to 7, characterized in that: The top of the shell (2) is provided with a protective top cover (4), and the protective top cover (4) is detachably connected to the top of the shell (2).

9. A protection device for a turbine flowmeter according to claim 8, characterized in that: The protective top cover (4) is provided with a rotating shaft (20), and the rotating shaft (20) passes through the protective top cover (4); One end of the rotating shaft (20) extending to the outside of the protective top cover (4) is connected to a rotating plate (19), and one end of the rotating shaft (20) extending into the shell (2) is connected to a clamping plate (21). A U-shaped block (22) is provided on the inner side of the side wall of the shell (2), and the rotating plate (19) is used to be clamped in a groove of the U-shaped block (22).

10. A turbine flowmeter structure, characterized in that: The invention comprises a turbine flowmeter (5) and a protection device for the turbine flowmeter as described in any one of claims 1 to 9, wherein the turbine flowmeter (5) is placed in the housing (2), a refueling pipe (52) of the turbine flowmeter (5) passes through the opening (3) and extends to the outside of the housing (2), an end of the refueling pipe (52) away from the turbine flowmeter (5) is connected to an oil cup (51), the oil cup protection cover (6) blocks the opening (3), and the oil cup (51) is located in the oil cup protection cover (6).

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