Leakage-proof rubber plate of concrete mixer truck

Abstract

The utility model discloses a leakage-proof rubber plate of a concrete mixer truck, which comprises a rubber plate body made of rubber materials, a matching surface and a sealing surface are respectively arranged on two opposite sides of the rubber plate body along the thickness direction of the rubber plate body, and the normal direction of the matching surface and the normal direction of the sealing surface are the same as the thickness direction of the rubber plate body. An oil storage cavity capable of storing oil is defined in the rubber plate body, an oil injection hole communicated with the oil storage cavity is formed in one side of the rubber plate body in the width direction of the rubber plate body and used for installing an oil nozzle, and an oil outlet communicated with the oil storage cavity is formed in the sealing face. The sealing device can be used between the discharging hopper and the mixing drum of the concrete mixer truck to block a gap between the discharging hopper and the mixing drum so as to prevent materials from leaking out, and lubricating oil can be injected into the oil storage cavity so that the lubricating oil can seep to the sealing surface from the oil outlet hole to play a lubricating role between the sealing surface and the wall surface of the mixing drum, so that the service life of the concrete mixer truck is prolonged. The service life of the rubber plate body is prolonged, the structure is simple, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures of concrete mixer trucks, in particular to a leak-proof rubber plate for concrete mixer trucks. Background Art

[0002] A concrete mixer truck is a special truck used to transport concrete for construction; due to its appearance, it is often called a snail truck. This type of truck is equipped with a cylindrical mixing drum to carry the mixed concrete. The mixing drum will always be kept rotating during transportation to ensure that the concrete being transported will not solidify. A discharge hopper for discharging materials is provided at the rear end of the mixing drum. The part of the discharge hopper close to the opening end of the mixing drum is in an arc shape (discharge hopper arc section). Since the mixing drum needs to rotate continuously, there will inevitably be a gap between the discharge hopper arc section and the mixing drum. This gap is prone to overflow or splashing. In order to prevent such situations, it is necessary to design a structure for preventing leakage between the discharge hopper arc section and the mixing drum. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a concrete mixer truck leakage prevention rubber plate, which can be used between the discharge hopper and the mixing drum of the concrete mixer truck to prevent leakage.

[0004] The anti-leakage rubber plate for a concrete mixer truck according to an embodiment of the utility model comprises:

[0005] The rubber plate body is made of rubber material, and a mating surface and a sealing surface are respectively provided on opposite sides of the rubber plate body along its thickness direction. The normal direction of the mating surface and the normal direction of the sealing surface are both the same as the thickness direction of the rubber plate body. An oil storage cavity capable of storing oil is defined in the rubber plate body, and an oil filling hole connected to the oil storage cavity is provided on one side of the rubber plate body along its width direction for installing an oil nozzle, and an oil outlet hole connected to the oil storage cavity is provided on the sealing surface.

[0006] The leak-proof rubber plate for concrete mixer trucks according to the embodiment of the utility model has at least the following beneficial effects:

[0007] When in use, install the oil nozzle at the oil filling hole, bend the rubber plate body into an arc shape, make the matching surface and the sealing surface bend into arc surfaces and the center line of the arc is distributed along the width direction of the rubber plate body, and then clamp the two ends of the rubber plate body in the length direction on the arc section of the discharge hopper (the arc section of the discharge hopper has a slot for the two ends of the rubber plate body to be inserted), make the matching surface contact with the arc section of the discharge hopper, and make the sealing surface contact with the inner wall of the mixing drum, so as to fill the gap between the arc section of the discharge hopper and the mixing drum to prevent material leakage. When the mixing drum rotates, inject lubricant into the oil storage cavity through the oil nozzle. Lubricating oil seeps out through the oil outlet hole onto the sealing surface, thereby playing a lubricating role between the sealing surface and the wall surface of the mixing drum, preventing the rubber plate body from being damaged by friction; the concrete mixer truck leak-proof rubber plate with the above-mentioned structure can be used between the discharge hopper and the mixing drum of the concrete mixer truck to block the gap between the two to prevent material leakage, and can inject lubricating oil into the oil storage cavity so that the lubricating oil seeps out from the oil outlet hole onto the sealing surface and plays a lubricating role between the sealing surface and the wall surface of the mixing drum, thereby improving the service life of the rubber plate body, and the structure is simple and practical.

[0008] According to some embodiments of the present utility model, an elastic filling layer is provided in the oil storage cavity.

[0009] According to some embodiments of the present invention, the filling layer is made of water-absorbing material.

[0010] According to some embodiments of the present invention, the filling layer is made of sponge material.

[0011] According to some embodiments of the utility model, the rubber plate body includes a base plate and a sealing plate, the middle part of the base plate protrudes toward the first side in its own thickness direction to form a protrusion and a concave cavity is formed inside the protrusion, and the sealing plate is sealed at the opening end of the concave cavity to form the oil storage cavity.

[0012] According to some embodiments of the present invention, the sealing plate is glued to the base plate.

[0013] According to some embodiments of the utility model, the substrate is provided with a groove at the opening end of the cavity and forms a step surface, the normal direction of the step surface is the same as the thickness direction of the rubber plate body, the sealing plate is embedded in the groove and the inner surface of the sealing plate is in contact with the step surface.

[0014] According to some embodiments of the present invention, a surface of the second side of the filling layer along the thickness direction of the substrate is flush with the step surface.

[0015] According to some embodiments of the utility model, a boss is provided on the inner wall of the oil storage cavity corresponding to the oil filling hole, and the oil filling hole extends to the inner end surface of the boss.

[0016] According to some embodiments of the present invention, the oil outlet holes are provided in plurality and are arranged at intervals along the length direction of the rubber plate body.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic structural diagram of the leak-proof rubber plate of a concrete mixer truck in a normal state according to an embodiment of the utility model;

[0020] Figure 2 This is a structural schematic diagram of the concrete mixer truck leak-proof rubber plate in the use state of the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the leak-proof rubber plate of a concrete mixer truck according to an embodiment of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the structure of the leak-proof rubber plate of a concrete mixer truck according to an embodiment of the present invention.

[0023] Figure Number:

[0024] The rubber plate body 100, the mating surface 101, the sealing surface 102, the oil storage cavity 103, the oil filling hole 104, the oil outlet hole 105, the boss 106, the base plate 110, the protruding part 111, the sinking groove 112, the step surface 113, and the sealing plate 120;

[0025] Filling layer 200. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship 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 a limitation on the present invention.

[0028] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] During transportation, the concrete mixer truck will always keep the mixing drum rotating to ensure that the transported concrete will not solidify. A discharge hopper is set at the rear end of the mixing drum of the concrete mixer truck for discharging materials. The part of the discharge hopper close to the mixing drum is set in an arc shape. The arc section of the discharge hopper in this article refers to the part of the hopper set in an arc shape. Since the mixing drum needs to rotate continuously to prevent the concrete from solidifying, a gap will be generated between the lower half of the arc section of the discharge hopper and the mixing drum. During transportation or unloading, this gap is prone to overflow or splashing.

[0031] Therefore, the utility model proposes a leak-proof rubber plate for a concrete mixer truck, which can effectively improve the above-mentioned problem.

[0032] Refer to the following Figures 1 to 4 The invention describes a leak-proof rubber plate for a concrete mixer truck according to an embodiment of the utility model.

[0033] The anti-leakage rubber plate for a concrete mixer truck according to the embodiment of the utility model comprises a rubber plate body 100 .

[0034] For example, the rubber plate body 100 is made of rubber material. Obviously, rubber is a highly elastic polymer material with reversible deformation. It is elastic at room temperature and can produce a large deformation under a very small external force. It can restore to its original shape after the external force is removed. Therefore, an external force can be applied to the rubber plate body 100 to bend it, and it can restore to its original shape after the external force is removed. Among them, the rubber plate body 100 is provided with a mating surface 101 and a sealing surface 102 on opposite sides along its own thickness direction. In this embodiment, under normal conditions, the rubber plate body 100 is in a flat plate shape, which is easy to manufacture. The mating surface 101 And the sealing surface 102 are both planes, and the normal direction of the mating surface 101 and the normal direction of the sealing surface 102 are both the same as the thickness direction of the rubber plate body 100; in addition, an oil storage cavity 103 capable of storing oil is defined in the rubber plate body 100, and an oil filling hole 104 connected to the oil storage cavity 103 is provided on one side of the rubber plate body 100 along its own width direction. The oil filling hole 104 is used to install an oil nozzle to inject lubricating oil into the oil storage cavity 103, and an oil outlet hole 105 connected to the oil storage cavity 103 is provided on the sealing surface 102 to allow the oil in the oil storage cavity 103 to seep out.

[0035] When in use, install the oil nozzle at the oil filling hole 104, bend the rubber plate body 100 into an arc shape (such as Figure 2 As shown in the figure, the mating surface 101 and the sealing surface 102 are bent into arc surfaces and the center line of the arc is distributed along the width direction of the rubber plate body 100, and then the two ends of the rubber plate body 100 in the length direction are clamped on the arc section of the discharge hopper (the arc section of the discharge hopper has a clamping groove for inserting the two ends of the rubber plate body 100), so that the mating surface 101 contacts the arc section of the discharge hopper, and the sealing surface 102 contacts the inner wall of the mixing drum, thereby filling the gap between the arc section of the discharge hopper and the mixing drum to prevent material leakage. During the rotation of the mixing drum, lubricating oil is injected into the oil storage cavity 103 through the oil nozzle, and the lubricating oil passes through the oil outlet hole 10 5 seeps out to the sealing surface 102, thereby playing a lubricating role between the sealing surface 102 and the wall surface of the mixing drum, preventing the rubber plate body 100 from being damaged by friction; the concrete mixer truck anti-leakage rubber plate with the above-mentioned structure can be used between the discharge hopper and the mixing drum of the concrete mixer truck to block the gap between the two to prevent material leakage, and can inject lubricating oil into the oil storage cavity 103 so that the lubricating oil seeps out from the oil outlet hole 105 to the sealing surface 102 to play a lubricating role between the sealing surface 102 and the wall surface of the mixing drum, thereby improving the service life of the rubber plate body 100, and the structure is simple and practical.

[0036] Reference Figure 3 As shown, in some embodiments of the present invention, an elastic filling layer 200 is provided in the oil storage cavity 103 .

[0037] It is understandable that, since it is necessary to set an oil storage cavity 103 in the rubber plate body 100, a part of the rubber plate body 100 will be hollow. When the rubber plate body 100 is bent, it is easy for the rubber plate body 100 to be deformed and damaged. In order to avoid this situation, an elastic filling layer 200 is set in the oil storage cavity 103. When the rubber plate body 100 is bent, elastic support is provided by the filling layer 200 to prevent the rubber plate body 100 from being deformed and damaged, and the structural reliability is high.

[0038] In a further embodiment of the present invention, the filling layer 200 is made of water-absorbing material.

[0039] It is understandable that the filling layer 200 will occupy a part of the space in the oil storage cavity 103, thereby occupying the space for storing the lubricating oil. On the other hand, if the lubricating oil directly seeps out from the oil outlet 105 after entering the oil storage cavity 103, a large amount of lubricating oil will be wasted. Therefore, in this embodiment, the filling layer 200 is made of a water-absorbing material, that is, the filling layer 200 is both elastic and water-absorbent. The lubricating oil can be absorbed by the filling layer 200 after entering the oil storage cavity 103, which can ensure sufficient space to accommodate the lubricating oil. At the same time, since the lubricating oil is absorbed by the filling layer 200, when the rubber plate body 100 is subjected to friction and compression, the lubricating oil can slowly and continuously seep out from the filling layer 200, and then seep out from the oil outlet 105, which can reduce the use of the lubricating oil and reduce waste.

[0040] In a further embodiment of the utility model, the filling layer 200 is made of sponge material, which is a porous elastic material with good water absorption. It can provide elastic buffering when bending the rubber plate body 100 to prevent the rubber plate body 100 from deformation and damage. At the same time, it can also absorb lubricating oil during the use of the rubber plate body 100, so that the lubricating oil slowly seeps out from the oil outlet 105, which is low in cost and highly practical.

[0041] Reference Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the rubber plate body 100 includes a substrate 110 and a sealing plate 120. The middle part of the substrate 110 in the length direction protrudes toward the first side in its own thickness direction to form a protrusion 111 and a concave cavity is formed on the inner side of the protrusion 111. The sealing plate 120 is sealed at the open end of the concave cavity to form an oil storage cavity 103. Obviously, the second side of the concave cavity along the thickness direction of the substrate 110 is an open end.

[0042] It is understandable that a filling layer 200 needs to be provided in the oil storage cavity 103. To facilitate placing the filling layer 200 in the oil storage cavity 103, the rubber plate body 100 is divided into a base plate 110 and a sealing plate 120 in this embodiment, and the base plate 110 and the sealing plate 120 together form the oil storage cavity 103.

[0043] In some specific embodiments, the sealing surface 102 is formed on a side surface of the protrusion 111 away from the sealing plate 120 , and the mating surface 101 is formed on a side surface of the substrate 110 close to the sealing plate 120 and on an outer surface of the sealing plate 120 .

[0044] In a further embodiment of the present invention, the sealing plate 120 is glued to the base plate 110, which is convenient for connection and not easy to separate from each other.

[0045] Reference Figure 3 and Figure 4As shown, in some embodiments of the present invention, the substrate 110 is provided with a groove 112 at the opening end of the cavity and forms a step surface 113, the normal direction of the step surface 113 is the same as the thickness direction of the rubber plate body 100, the sealing plate 120 is embedded in the groove 112 and the inner surface of the sealing plate 120 is in contact with the step surface 113.

[0046] It is understandable that when gluing the sealing plate 120 and the substrate 110, if there is no positioning, the operation will be troublesome and it is easy to cause skewness. Therefore, this embodiment sets a groove 112 at the open end of the cavity and forms a step surface 113. When gluing the sealing plate 120 and the substrate 110, glue can be applied on the step surface 113 and the inner surface of the sealing plate 120, and then the sealing plate 120 is embedded in the groove 112 to quickly position the sealing plate 120 and realize the connection between the sealing plate 120 and the substrate 110. The operation is convenient and quick.

[0047] Reference Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the surface of the second side of the filling layer 200 along the thickness direction of the substrate 110 is flush with the step surface 113, that is, the surface of the second side of the filling layer 200 along the thickness direction of the substrate 110 is in contact with the inner surface of the sealing plate 120.

[0048] It is understandable that when gluing the sealing plate 120 and the substrate 110, the area of ​​the step surface 113 is limited, and the gluing of the sealing plate 120 may be unstable. Therefore, in this embodiment, the surface of the second side of the filling layer 200 along the thickness direction of the substrate 110 is made flush with the step surface 113, so that the filling layer 200 can contact the inner surface of the sealing plate 120 to provide adhesion, thereby making the gluing of the sealing plate 120 more firmly.

[0049] In some specific embodiments, the filling layer 200 is glued to the inner wall of the cavity of the substrate 110 , and the filling layer 200 is divided into multiple parts to avoid blocking the oil filling hole 104 .

[0050] Reference Figure 3 and Figure 4 As shown, in some embodiments of the present invention, a boss 106 is provided on the inner wall of the oil storage cavity 103 corresponding to the oil filling hole 104 , and the oil filling hole 104 extends to the inner end surface of the boss 106 .

[0051] It can be understood that the oil outlet hole 105 is used to install the oil nozzle, which is usually a metal part and its installation position needs to have a certain strength. Therefore, in this embodiment, a boss 106 is provided on the inner wall of the oil storage cavity 103 corresponding to the oil filling hole 104, and the wall thickness of the rubber plate body 100 at the oil filling hole 104 is increased to improve the local structural strength, while the wall thickness of the position where the oil nozzle is not required to be installed can be smaller, which saves materials and is more lightweight.

[0052] Reference Figure 3 and Figure 4 As shown, in some embodiments of the present invention, a plurality of oil outlet holes 105 are provided and are arranged at intervals along the length direction of the rubber plate body 100. By providing a plurality of oil outlet holes 105 to discharge the lubricating oil in the oil storage cavity 103, the lubricating oil can be more evenly distributed on the sealing surface 102, thereby improving the lubrication effect.

[0053] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A leak-proof rubber sheet for a concrete mixer truck, characterized in that: include: The rubber plate body (100) is made of rubber material. The rubber plate body (100) is provided with a mating surface (101) and a sealing surface (102) on opposite sides along the thickness direction thereof. The normal direction of the mating surface (101) and the normal direction of the sealing surface (102) are both the same as the thickness direction of the rubber plate body (100). An oil storage cavity (103) capable of storing oil is defined in the rubber plate body (100). An oil injection hole (104) communicating with the oil storage cavity (103) is provided on one side along the width direction of the rubber plate body (100) for installing an oil nozzle. An oil outlet hole (105) communicating with the oil storage cavity (103) is provided on the sealing surface (102).

2. The leak-proof rubber sheet for concrete mixer truck according to claim 1, characterized in that: An elastic filling layer (200) is provided in the oil storage cavity (103).

3. The leak-proof rubber sheet for concrete mixer truck according to claim 2, characterized in that: The filling layer (200) is made of water-absorbing material.

4. The anti-leakage rubber plate for concrete mixer truck according to claim 3, characterized in that: The filling layer (200) is made of sponge material.

5. The leak-proof rubber sheet for concrete mixer truck according to claim 2, characterized in that: The rubber plate body (100) comprises a base plate (110) and a sealing plate (120); a protruding portion (111) is formed in the middle of the base plate (110) protruding toward a first side in the thickness direction thereof, and a concave cavity is formed inside the protruding portion (111); the sealing plate (120) is sealed at the opening end of the concave cavity to form the oil storage cavity (103).

6. The anti-leakage rubber plate for concrete mixer truck according to claim 5, characterized in that: The sealing plate (120) is glued to the base plate (110).

7. The anti-leakage rubber plate for concrete mixer truck according to claim 6, characterized in that: The base plate (110) is provided with a recessed groove (112) at the opening end of the cavity and is formed with a step surface (113); the normal direction of the step surface (113) is the same as the thickness direction of the rubber plate body (100); the sealing plate (120) is embedded in the recessed groove (112) and the inner surface of the sealing plate (120) is in contact with the step surface (113).

8. The anti-leakage rubber plate for concrete mixer truck according to claim 7, characterized in that: A surface of the filling layer (200) on the second side along the thickness direction of the substrate (110) is flush with the step surface (113).

9. The anti-leakage rubber plate for concrete mixer truck according to claim 1, characterized in that: A boss (106) is provided on the inner wall of the oil storage cavity (103) corresponding to the oil injection hole (104), and the oil injection hole (104) extends to the inner end surface of the boss (106).

10. The anti-leakage rubber plate for concrete mixer truck according to claim 1, characterized in that: The oil outlet holes (105) are provided in plurality and are arranged at intervals along the length direction of the rubber plate body (100).

Images