Turnover shield

Abstract

The invention provides a turnover protective cover which comprises a protective cover body arranged outside a prime motor belt wheel and a speed reducer belt wheel in a covering mode, the protective cover body comprises a top cover plate, a connecting plate and two main side plates, and the two main side plates are oppositely arranged and located on the two opposite sides of a part to be covered. The connecting plate is detachably and fixedly connected with the bottoms of the two main side plates, and the connecting plate at least seals the bottom of the prime motor belt pulley; one side of the top cover plate is rotationally connected with the main side plate, a lock catch is arranged on the other opposite side of the top cover plate, and the top cover plate and the main side plate can be locked by the lock catch, so that the top cover plate is in a locked state, and the top cover plate and the main side plate are in an unlocked state; the top cover plate can rotate under the action of external force and open the shield body. The top cover plate is overturned outwards, the connecting plate is disassembled, the belt is installed on the speed reducer belt wheel and the prime motor belt wheel, the whole shield body does not need to be disassembled from the interior of the machine shell, and the belt disassembling and assembling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of belt guards, in particular to a reversible guard. Background Art

[0002] As a traditional oil production equipment, the beam pumping unit is still widely used in oil fields at home and abroad. The pumping unit is driven by the prime mover through the belt to drive the reducer. Generally, the reducer used for the pumping unit is often equipped with a larger pulley according to the needs, such as Figure 1 As shown, Figure 1 It is a schematic diagram of the matching structure between the pulley of the prime mover and the pulley of the reducer in the prior art; there is a certain distance between the installation position of the prime mover and the reducer, and the prime mover pulley 100 and the reducer pulley 200 are transmitted by a belt. In the prior art, a protective cover needs to be provided outside the prime mover pulley 100 and the reducer pulley 200 to play a protective role.

[0003] The guard in the prior art is an integral structure, which is arranged outside the pulleys of the prime mover and the reducer. The guard is heavy. The guard in the prior art is an iron shell of about 100Kg, over 3m in height and installed 2-3m above the ground.

[0004] The applicant found that the prior art has at least the following technical problems: In actual application, the operator must first dismantle the entire guard to check or replace the belt. In view of the high frequency of adjusting and replacing the belt during the daily maintenance of the pumping unit, the guard in the prior art is inconvenient to use for oil fields that do not have hoisting conditions, resulting in cumbersome belt maintenance and replacement operations. Summary of the invention

[0005] The purpose of the present invention is to provide a reversible guard to solve the technical problem that the entire guard needs to be removed for belt maintenance and replacement in the prior art, which is cumbersome and inconvenient to use. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The reversible shield provided by the present invention comprises a shield body which is arranged outside the prime mover pulley and the reducer pulley, and the shield body comprises a top cover plate, a connecting plate and a main side plate, wherein:

[0008] There are two main side plates arranged opposite to each other and located on opposite sides of the member to be covered, the connecting plate is detachably fixedly connected to the bottom of the two main side plates, and the connecting plate at least closes the bottom of the prime mover pulley;

[0009] One side of the top cover is rotatably connected to the main side panel, and a lock is provided on the other opposite side of the top cover. The lock can lock the top cover and the main side panel, so that the top cover is in a locked state, and can also put the top cover and the main side panel in an unlocked state. When in the unlocked state, the top cover can rotate under the action of external force and open the shield body.

[0010] Preferably, the shield body further comprises a top plate, which is located at the top of the shield body and is fixedly connected to the two main side plates;

[0011] An overlapping eave is arranged at one end of the top plate facing the top cover plate, and the overlapping eave is arranged vertically or inclined; when in the locked state, a part of the top cover plate covers the overlapping eave.

[0012] Preferably, the top cover plate comprises a cover plate body and a water retaining plate, wherein:

[0013] The cover plate body is rotatably connected to the main side plate, and the water baffle is fixed to one end of the cover plate body facing the top plate. When in the locked state, the water baffle covers the overlapping eaves.

[0014] Preferably, the water baffle includes a horizontal plate and a side baffle, wherein:

[0015] When in the locked state, the horizontal plate covers the overlapping eaves and completely covers the overlapping eaves; the side baffles are fixed to the sides of the horizontal plate and fit with the outer sides of the main side plates.

[0016] Preferably, the cover plate body is gradually inclined upward in a direction close to the top plate, and a side cover plate is fixed to one side of the cover plate body. When in the locked state, the side cover plate fits with the outer side of the main side plate;

[0017] Preferably, a handle is provided on the cover body near the opening side.

[0018] Preferably, a maintenance port is provided on the main side panel, and the maintenance port is provided at a position of the main side panel corresponding to the prime mover pulley.

[0019] Preferably, the shield body further comprises a side flap, the upper side of which is rotatably connected to the main side panel, and the side flap closes the maintenance opening under the action of gravity.

[0020] Preferably, the shield body further comprises a first vertical plate and a second vertical plate, wherein:

[0021] The first vertical plate is fixedly connected to the lower end of the top plate cover, the second vertical plate is fixedly connected to the top plate, the first vertical plate and the second vertical plate are located on opposite sides of the main side plates and are fixedly connected to the two main side plates, and the first vertical plate and the second vertical plate are both provided with fixing plates, and the fixing plates are used to be fixed in the casing.

[0022] Preferably, the shield body also includes a bottom plate, which is horizontally arranged and located below the prime mover pulley. The bottom plate fixedly connects the bottoms of the two main side plates. The connecting plate is inclined relative to the bottom plate, and the lower end of the connecting plate is fixedly connected to the bottom plate.

[0023] Compared with the prior art, the reversible shield provided by the present invention has the following beneficial effects: when the belt needs to be replaced or maintained, the lock is opened, the top cover is turned outward, the connecting plate is removed, the upper and lower sides of the shield body are open, and the belt can be easily installed on the reducer pulley and the prime mover pulley without removing the entire shield body from the casing, which saves manpower, is convenient to use, and improves the maintenance and disassembly efficiency of the belt. The reversible shield can be installed on a traditional oil pumping unit, and the belt can be replaced without using a crane to remove the shield, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the matching structure between the pulley of the prime mover and the pulley of the speed reducer in the prior art; wherein, in the figure, 100 is the pulley of the prime mover; 200 is the pulley of the speed reducer;

[0026] Figure 2 It is a schematic diagram of the reversible shield on the oil pumping unit;

[0027] Figure 3 It is a schematic diagram of the structure of the reversible shield located on the prime mover pulley and the reducer pulley from one perspective;

[0028] Figure 4 It is a schematic diagram of the structure from another perspective that the reversible shield is located on the prime mover pulley and the reducer pulley;

[0029] Figure 5 This is a schematic diagram of the structure from one viewing angle when the top cover is opened;

[0030] Figure 6 This is a schematic diagram of the structure from another perspective when the top cover is opened;

[0031] Figure 7 It is a schematic diagram of the inner structure of the reversible shield;

[0032] Figure 8 yes Figure 7 A partial enlarged view of the .

[0033] In the figure, 1, top cover plate; 11, handle; 12, cover plate body; 13, water baffle; 14, side cover plate; 131, horizontal plate; 132, side baffle; 2, main side plate; 3, connecting plate; 4, top plate; 41, overlapping eaves; 5, bottom plate; 6, first vertical plate; 7, second vertical plate; 8, hinge; 9, side flap; 10, lock; 300, shield body. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0036] The embodiment of the present invention provides a reversible protective cover, and the belt can be easily installed on the reducer pulley and the prime mover pulley without removing the entire protective cover body from the casing, which saves manpower, is easy to use, and improves the maintenance and disassembly efficiency of the belt.

[0037] Combine the following Figure 2-Figure 8 The technical solution provided by the present invention is described in more detail.

[0038] Embodiment 1:

[0039] See also Figure 2-Figure 8As shown, the reversible shield provided by the present invention comprises a shield body 300 which is arranged outside the prime mover pulley 100 and the reducer pulley 200, and the shield body 300 comprises a top cover plate 1, a connecting plate 3 and a main side plate 2, wherein: there are two main side plates 2 which are arranged opposite to each other and are located on opposite sides of the parts to be covered, the connecting plate 3 is detachably fixedly connected to the bottom of the two main side plates 2, and the connecting plate 3 at least closes the bottom of the prime mover pulley; one side of the top cover plate 1 is rotatably connected to the main side plate 2, and a lock buckle 10 is arranged on the other opposite side of the top cover plate 1, and the lock buckle 10 can lock the top cover plate 1 and the main side plate 2, so that the top cover plate 1 is in a locked state, and can make the top cover plate 1 and the main side plate 2 in an unlocked state. When in the unlocked state, the top cover plate 1 can rotate under the action of an external force and open the shield body 300.

[0040] Among them, see Figure 8 As shown, the lock buckle 10 of this embodiment can be a quick buckle in the prior art, which can realize the quick locking of the top cover plate 1 on the main side plate 2.

[0041] See also Figure 3 As shown, the flip side of the top cover plate 1 is rotatably connected to the main side plate 2 via a hinge 8 .

[0042] The reversible shield provided by the present invention, when the belt needs to be replaced or maintained, the lock buckle 10 is opened, the top cover plate 1 is turned outward, the connecting plate 3 is removed, the upper side and the lower side of the shield body 300 are in an open state, and the belt can be easily installed on the reducer pulley and the prime mover pulley without removing the entire shield body 300 from the casing, which saves manpower, is convenient to use, and improves the maintenance and disassembly efficiency of the belt. The reversible shield can be installed on a traditional oil pumping unit, and the belt can be replaced without using a crane to remove the shield, which is convenient to use.

[0043] As an alternative embodiment, see Figure 3 , Figure 5 and Figure 7 , Figure 8 As shown, the shield body 300 also includes a top plate 4, which is located at the top of the shield body 300 and is fixedly connected to the two main side plates 2; a lap eave 41 is provided at one end of the top plate 4 facing the top cover plate 1, and the lap eave 41 is vertically or inclined; when in the locked state, a part of the top cover plate 1 covers the lap eave 41.

[0044] Since the upper end of the top cover plate 1 is covered on the overlapping eaves, Figure 8 As shown, it is possible to prevent external moisture such as rainwater from entering the interior of the shield body 300 , thereby improving the waterproof performance of the shield body 300 .

[0045] As an alternative embodiment, see Figure 7 and Figure 8As shown, the top cover plate 1 includes a cover plate body 12 and a water baffle 13, wherein: the cover plate body 12 is rotatably connected to the main side plate 2, and the water baffle 13 is fixed to one end of the cover plate body 12 facing the top plate 4. When in a locked state, the water baffle 13 covers the overlapping eaves.

[0046] like Figure 3 As shown, in the top cover plate 1, the cover plate body 12 closes the upper space between the two main side plates 2, and the water retaining plate 13 and the cover plate body 12 are an integrally formed structure. The water retaining plate 13 covers the overlapping eaves, which can prevent external moisture such as rainwater from entering the interior of the protective cover body 300, thereby improving the waterproof performance of the protective cover body 300.

[0047] In order to further improve the waterproof performance, as an optional implementation, see Figure 8 As shown, the water baffle 13 includes a horizontal plate 131 and a side baffle 132, wherein: when in a locked state, the horizontal plate 131 covers the overlapping eaves and completely covers the overlapping eaves; the side baffle 132 is fixed to the side of the horizontal plate 131 and fits with the outer side of the main side plate 2.

[0048] The horizontal plate 131 covers the overlapping eaves to prevent rainwater from outside from penetrating into the shield body 300 from the top and affecting the normal operation of the internal structure. The side baffle 132 fits the outer side of the main side plate 2 to prevent rainwater from outside from penetrating into the shield body 300 from the side. The above structure can provide waterproof protection from multiple directions, thereby improving the waterproof effect.

[0049] As an alternative embodiment, see Figure 3-Figure 6 As shown, the cover plate body 12 is gradually inclined upward in the direction close to the top plate 4. This arrangement is convenient for adapting to the relative position relationship between the prime mover pulley and the reducer pulley.

[0050] See also Figure 6 As shown, a side cover plate 14 is fixed to one side of the cover plate body 12, and when in a locked state, the side cover plate 14 fits against the outer side of the main side plate 2. The above structure can improve the sealing performance of the shield body 300, and prevent external dust or rainwater from entering the shield body 300 from between the side cover plate 14 and the main side plate 2.

[0051] See also Figure 3 As shown, the flip side of the top cover 1 is rotatably connected to the main side plate 2 via a hinge 8, and a handle 11 is provided near the opening side (away from the flip side) of the cover body 12. The user holds the handle 11 to facilitate opening the top cover 1.

[0052] As an alternative embodiment, see Figure 3 and Figure 4As shown, a maintenance port is provided on the main side plate 2, and the maintenance port is provided at a position corresponding to the prime mover pulley of the main side plate 2. The shield body 300 also includes a side flap 9, the upper side of which is rotatably connected to the main side plate 2, and the side flap 9 closes the maintenance port under the action of gravity.

[0053] The side flap 9 is rotatably connected to the main side panel 2 via a hinge 8. Specifically, the upper side of the side flap 9 is rotatably connected to the main side panel 2 via the hinge 8. The side flap 9 closes the maintenance port under the action of gravity to prevent the entry of external dust, rainwater, etc. When continuing maintenance, the side flap 9 can be opened to directly inspect the position of the prime mover pulley.

[0054] As an alternative embodiment, see Figure 3 and Figure 4 As shown, the shield body 300 also includes a first vertical plate 6 and a second vertical plate 7, wherein: the first vertical plate 6 is fixedly connected to the lower end of the top plate 4 cover plate, the second vertical plate 7 is fixedly connected to the top plate 4, the first vertical plate 6 and the second vertical plate 7 are located on opposite sides of the main side plates 2, and are fixedly connected to the two main side plates 2, and the first vertical plate 6 and the second vertical plate 7 are both provided with fixing plates, which are used to be fixed in the casing.

[0055] The structures of the first vertical plate 6 and the second vertical plate 7 are located at the side of the shield body 300 to play a protective role, thereby improving the protective performance of the shield body 300.

[0056] As an alternative embodiment, see Figure 4 and Figure 7 As shown, the shield body 300 also includes a bottom plate 5, which is horizontally arranged and located below the prime mover pulley. The bottom plate 5 fixes the bottoms of the two main side plates 2 together. The connecting plate 3 is inclined relative to the bottom plate 5, and the lower end of the connecting plate 3 is fixedly connected to the bottom plate 5.

[0057] Since the prime mover pulley is located lower than the speed reducer pulley, the bottom plate 5 is located below the prime mover pulley, and the prime mover pulley can be further twisted and protected to protect the structure of the prime mover pulley.

[0058] See also Figure 3-Figure 8 As shown, the shield body 300 of the present embodiment includes a main side plate 2, a top cover plate 1, a first vertical plate 6, a second vertical plate 7, a connecting plate 3 and a bottom plate 5 which are connected in sequence. The above structure arranges the prime mover pulley and the reducer pulley cover inside, especially completely wraps the prime mover pulley at a lower position in all directions, thereby improving the protective performance and having a good waterproof effect. The top cover plate 1 is flippable, and the belt can be maintained and replaced without disassembling the shield body 300.

[0059] Embodiment 2:

[0060] This embodiment provides an oil pumping unit, including a prime mover pulley, a speed reducer pulley and the above-mentioned flippable shield.

[0061] The above-mentioned reversible guard is installed on a conventional oil pumping unit, and the belt can be replaced without using a crane to remove the guard. When replacing the belt, the top cover plate 1 is turned outward, the side flap 9 is turned upward or downward, and the lower connecting plate 3 of the guard is removed, and the belt can be easily installed into the reducer pulley and the prime mover pulley.

[0062] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0064] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A reversible protective cover, characterized in that: The invention comprises a shield body which is arranged outside the prime mover pulley and the reducer pulley, and the shield body comprises a top cover plate, a connecting plate and a main side plate, wherein: There are two main side plates arranged opposite to each other and located on opposite sides of the member to be covered, the connecting plate is detachably fixedly connected to the bottom of the two main side plates, and the connecting plate at least closes the bottom of the prime mover pulley; One side of the top cover is rotatably connected to the main side panel, and a lock is provided on the other opposite side of the top cover. The lock can lock the top cover and the main side panel, so that the top cover is in a locked state, and can also put the top cover and the main side panel in an unlocked state. When in the unlocked state, the top cover can rotate under the action of external force and open the shield body.

2. The reversible shield according to claim 1, characterized in that: The shield body also includes a top plate, which is located on the top of the shield body and is fixedly connected to the two main side plates; An overlapping eave is arranged at one end of the top plate facing the top cover plate, and the overlapping eave is arranged vertically or inclined; when in the locked state, a part of the top cover plate covers the overlapping eave.

3. The reversible shield according to claim 2, characterized in that: The top cover plate comprises a cover plate body and a water baffle, wherein: The cover plate body is rotatably connected to the main side plate, and the water baffle is fixed to one end of the cover plate body facing the top plate. When in the locked state, the water baffle covers the overlapping eaves.

4. The reversible shield according to claim 3, characterized in that: The water baffle comprises a horizontal plate and a side baffle, wherein: When in the locked state, the horizontal plate covers the overlapping eaves and completely covers the overlapping eaves; the side baffles are fixed to the sides of the horizontal plate and fit with the outer sides of the main side plates.

5. The reversible shield according to claim 3, characterized in that: The cover plate body is gradually inclined upward in a direction close to the top plate, and a side cover plate is fixed to one side of the cover plate body. When in the locked state, the side cover plate fits with the outer side of the main side plate.

6. The reversible shield according to claim 1, characterized in that: A handle is provided at a position close to the opening side of the cover body.

7. The reversible shield according to claim 1, characterized in that: A maintenance opening is provided on the main side plate, and the maintenance opening is provided at a position of the main side plate corresponding to the prime mover pulley.

8. The reversible shield according to claim 7, characterized in that: The shield body also includes a side flap, the upper side of which is rotatably connected to the main side plate, and the side flap closes the maintenance opening under the action of gravity.

9. The reversible shield according to claim 2, characterized in that: The shield body further comprises a first vertical plate and a second vertical plate, wherein: The first vertical plate is fixedly connected to the lower end of the top plate cover, the second vertical plate is fixedly connected to the top plate, the first vertical plate and the second vertical plate are located on opposite sides of the main side plates and are fixedly connected to the two main side plates, and the first vertical plate and the second vertical plate are both provided with fixing plates, and the fixing plates are used to be fixed in the casing.

10. The reversible shield according to claim 1, characterized in that: The shield body also includes a bottom plate, which is horizontally arranged and located below the prime mover pulley. The bottom plate fixes the bottoms of the two main side plates together. The connecting plate is inclined relative to the bottom plate, and the lower end of the connecting plate is fixedly connected to the bottom plate.

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