Water pump belt pulley

Abstract

The utility model provides a water pump belt pulley, which belongs to the technical field of belt pulleys, and comprises a belt pulley body, an anti-drop ring, a plurality of belt embedding grooves, a circular groove, a through groove and a belt anti-drop component, the anti-drop ring is fixedly arranged at the left end of the belt pulley body, and the belt embedding grooves are equidistantly formed in the outer surface of the belt pulley. A circular groove is embedded in the right side of the belt wheel body, a plurality of penetrating grooves are formed in the side face of the circular groove in a penetrating mode, and a belt anti-disengaging assembly is installed in the center of the inner side of the circular groove. When a belt is installed on the belt wheel body, the rotating handle is rotated to drive the rotating disc to rotate, the rotating shaft rotates along the bearing, at the moment, the torsion spring is in a torsion state, the rotating disc rotates to enable the connecting rod to drive the limiting plate to move into the circular groove along the penetrating groove, and the limiting plate is completely embedded into the penetrating groove; at the moment, the limiting plate does not affect installation of the belt, a worker can grasp the rotating handle with one hand and install the belt with the other hand, and single-person operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a water pump pulley. Background Art

[0002] The water pump pulley, also called the pulley next to the water pump, is a device that transmits power through a belt. Its main function is to help the water pump operate normally. It transmits power through the belt to drive the rotation of the water pump impeller, thereby circulating the water in the water pump and ensuring the normal operation of the engine. In the existing technology, when installing the belt of the water pump pulley, because there are raised ring plates on both sides, the belt needs to be very loose before it can be put on. Due to the looseness, the put-on belt is easy to fall off before it is tightened, causing the problem of repeated belting;

[0003] For example, patent CN 219176903 U discloses a water pump pulley. This device utilizes a deformed pulley body design, wherein the belt is first installed and then a limiting slide is installed to limit the belt. Since the ring plate in front of the pulley body is removed, the belt can slide smoothly along the edge of the installation panel into the side of the pulley body without excessive slack. After the belt is installed, the assembled limiting slide and spring can prevent the belt from falling off. The limiting slide and spring can be assembled and disassembled, can be used on pulley bodies of the same type, and can reduce the number of pulleys used.

[0004] However, when the spring of the device is in a naturally extended state, multiple limit slides will extend out of the slide groove. When installing the belt, multiple limit slides need to be pressed into the slide groove at the same time so that the limit slides will not affect the installation of the belt. However, it is difficult for a single person to press the limit slides into the slide groove at the same time, which causes inconvenience when installing the belt. Therefore, a water pump pulley is designed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology and to propose a water pump pulley.

[0006] The technical problem to be solved by the present invention is to provide a water pump pulley, which solves the problem in the prior art that when installing the belt, multiple limit slides need to be pressed into the slide groove before the belt is installed, and a single person cannot press multiple limit slides into the slide groove at the same time, which causes inconvenience in belt installation.

[0007] The utility model provides a water pump pulley, comprising a pulley body, an anti-slip ring, a belt embedding groove, a circular groove, a through groove and a belt anti-slip assembly, wherein the left end of the pulley body is fixedly provided with an anti-slip ring, the outer surface of the pulley body is provided with a plurality of belt embedding grooves at equal distances, the right side of the pulley body is embedded with a circular groove, the side surface of the circular groove is penetrated by a plurality of through grooves, and the belt anti-slip assembly is installed at the center of the inner side of the circular groove;

[0008] The belt anti-slip assembly includes a rotating shaft, a turntable, a torsion spring, a connecting rod, a limit plate and a turning handle. The rotating shaft is rotatably arranged at the bottom center of the circular groove through a bearing, and a turntable is fixedly arranged at the other end of the rotating shaft. A connecting rod is rotatably arranged on the right side surface of the turntable away from the center position through a pin shaft, and a limit plate is rotatably arranged on the other end of the connecting rod through a pin shaft. A turning handle is fixedly arranged at the center of the right side surface of the turntable.

[0009] Preferably, the left side surface of the through groove and the right end of the rightmost belt embedding groove are in the same plane.

[0010] Preferably, the through groove matches the limiting plate.

[0011] Preferably, when the torsion spring is in an untwisted state, the connecting rod and the limiting plate are parallel, and at this time the limiting plate passes through the outside of the through slot.

[0012] Preferably, when the torsion spring is in a maximum torsion state, the end of the limiting plate is completely embedded in the through groove.

[0013] Preferably, a positioning assembly is fixedly provided on the outer surface of the turntable, and the positioning assembly includes a fixing plate and a positioning bolt. The fixing plate is fixedly provided on the outer surface of the turntable, and the fixing plate is threadedly connected with the positioning bolt.

[0014] Preferably, the positioning bolt is made of rubber, and the end of the positioning bolt is provided with a frosted layer.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. When the belt is installed on the pulley body of the utility model, the handle is turned to drive the turntable to rotate, and the rotating shaft rotates along the bearing. At this time, the torsion spring is in a torsion state, and the rotation of the turntable causes the connecting rod to drive the limit plate to move along the through groove into the circular groove, so that the limit plate is completely embedded in the through groove. At this time, the limit plate will not affect the installation of the belt. The staff can hold the handle with one hand and install the belt with the other hand, which is convenient for single-person operation. After the belt is completely installed in the belt embedding groove, the handle is released, and the rebound force of the torsion spring causes the turntable to return to its original position. The turntable drives the limit plate to move through the connecting rod, so that the limit plate passes through the outside of the through groove, and the limit plate limits the belt in the belt embedding groove to prevent the belt from falling off.

[0017] After the belt is installed and disassembled, the positioning bolt is loosened, and the rebound force of the torsion spring makes the turntable return to its original position, and the turntable drives the limit plate to move through the connecting rod, so that the limit plate passes through the outside of the through groove, which facilitates the limit plate to limit the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a three-dimensional schematic diagram of the local structure of the utility model.

[0021] Figure 3 For this utility model Figure 1 A is an enlarged structural diagram.

[0022] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point B.

[0023] [reference numerals]

[0024] 1. Pulley body; 101. Anti-slip ring; 102. Belt embedding groove; 103. Circular groove; 104. Through groove; 2. Rotating shaft; 201. Turntable; 202. Torsion spring; 203. Connecting rod; 204. Limit plate; 205. Turning handle; 3. Fixing plate; 301. Positioning bolt. DETAILED DESCRIPTION

[0025] Example:

[0026] like Figures 1-4 As shown, an embodiment of the present utility model provides a water pump pulley, comprising a pulley body 1, an anti-slip ring 101, a belt embedding groove 102, a circular groove 103, a through groove 104 and a belt anti-slip assembly, wherein the left end of the pulley body 1 is fixedly provided with an anti-slip ring 101, a plurality of belt embedding grooves 102 are equidistantly provided on the outer surface of the pulley body 1, a circular groove 103 is embedded on the right side of the pulley body 1, a plurality of through grooves 104 are penetrated through the side of the circular groove 103, and a belt anti-slip assembly is installed at the inner center of the circular groove 103;

[0027] The belt anti-slip assembly includes a rotating shaft 2, a turntable 201, a torsion spring 202, a connecting rod 203, a limit plate 204 and a turning handle 205. The rotating shaft 2 is rotatably set at the bottom center of the circular groove 103 through a bearing, and the other end of the rotating shaft 2 is fixedly provided with a turntable 201. The right surface of the turntable 201 is rotated away from the center position by a pin shaft. The other end of the connecting rod 203 is rotated by a pin shaft to set a limit plate 204, and the turning handle 205 is fixedly provided at the center of the right surface of the turntable 201.

[0028] In this embodiment, the left surface of the through groove 104 and the right end of the rightmost belt embedding groove 102 are on the same plane, which makes it convenient for the limiting plate 204 passing through the through groove 104 to limit the belt embedded in the outermost belt embedding groove 102.

[0029] In this embodiment, the through slot 104 matches the limiting plate 204 , making it convenient for the limiting plate 204 to pass through the through slot 104 .

[0030] In this embodiment, when the torsion spring 202 is in an untwisted state, the connecting rod 203 and the limiting plate 204 are parallel, and at this time the limiting plate 204 passes through the outside of the through slot 104, making it convenient for the limiting plate 204 to limit the belt.

[0031] In this embodiment, when the torsion spring 202 is in the maximum torsion state, the end of the limiting plate 204 is completely embedded in the through groove 104, which facilitates the installation and removal of the belt.

[0032] The rotating disk 201 drives the limiting plate 204 to move through the connecting rod 203, so that the limiting plate 204 passes through the outside of the through groove 104, and the limiting plate 204 limits the belt in the belt embedded groove 102 to prevent the belt from falling off.

[0033] In this embodiment, a positioning assembly is fixedly provided on the outer surface of the turntable 201 , and the positioning assembly includes a fixing plate 3 and a positioning bolt 301 . The fixing plate 3 is fixedly provided on the outer surface of the turntable 201 , and the positioning bolt 301 is threadedly connected to the fixing plate 3 .

[0034] In this embodiment, the positioning bolt 301 is made of rubber, and the end of the positioning bolt 301 is provided with a frosted layer to increase the friction coefficient of the end of the positioning bolt 301.

[0035] By providing a positioning assembly, when installing or removing the belt on the pulley body 1, by turning the handle 205, the handle 205 drives the turntable 201 to rotate, and the rotating shaft 2 rotates along the bearing. At this time, the torsion spring 202 is in a torsion state, and the turntable 201 rotates so that the connecting rod 203 drives the limiting plate 204 to move along the through groove 104 into the circular groove 103, so that the limiting plate 204 is completely embedded in the through groove 104. At this time, the limiting plate 204 will not affect the installation and removal of the belt, and then tighten the positioning bolt 301 so that the positioning bolt 301 is close to the circular groove 10 3, the friction between the positioning bolt 301 and the circular groove 103 is used to position the turntable 201, thereby achieving the effect of positioning the position of the limit plate 204, freeing the hands of the staff and facilitating the installation and removal of the belt. After the belt is installed and removed, the positioning bolt 301 is loosened, and the resilience of the torsion spring 202 causes the turntable 201 to return to its original position. The turntable 201 drives the limit plate 204 to move through the connecting rod 203, so that the limit plate 204 passes through the outside of the through groove 104, which is convenient for the limit plate 204 to limit the belt.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A water pump pulley, characterized in that: The invention comprises a pulley body (1), an anti-slip ring (101), a belt embedding groove (102), a circular groove (103), a through groove (104) and a belt anti-slip assembly, wherein the left end of the pulley body (1) is fixedly provided with an anti-slip ring (101), the outer surface of the pulley body (1) is provided with a plurality of belt embedding grooves (102) at equal intervals, the right side of the pulley body (1) is embedded with a circular groove (103), the side surface of the circular groove (103) is penetrated with a plurality of through grooves (104), and the belt anti-slip assembly is installed at the center of the inner side of the circular groove (103); The belt anti-slip assembly comprises a rotating shaft (2), a rotating disk (201), a torsion spring (202), a connecting rod (203), a limiting plate (204) and a turning handle (205); the rotating shaft (2) is rotatably arranged at the bottom center of the circular groove (103) through a bearing; the other end of the rotating shaft (2) is fixedly provided with a rotating disk (201); the right side surface of the rotating disk (201) is provided with a connecting rod (203) rotatably arranged away from the center position through a pin; the other end of the connecting rod (203) is provided with a limiting plate (204) rotatably arranged through a pin; and the turning handle (205) is fixedly provided at the center of the right side surface of the rotating disk (201).

2. The water pump pulley according to claim 1, characterized in that: The left side surface of the through groove (104) and the right end of the rightmost belt embedding groove (102) are on the same plane.

3. The water pump pulley according to claim 2, characterized in that: The through slot (104) matches the limiting plate (204).

4. The water pump pulley according to claim 3, characterized in that: When the torsion spring (202) is in an untwisted state, the connecting rod (203) and the limiting plate (204) are parallel, and at this time, the limiting plate (204) passes through the outside of the through slot (104).

5. The water pump pulley according to claim 4, characterized in that: When the torsion spring (202) is in a maximum torsion state, the end of the limiting plate (204) is completely embedded in the through slot (104).

6. The water pump pulley according to claim 1, characterized in that: A positioning assembly is fixedly provided on the outer surface of the turntable (201), and the positioning assembly comprises a fixing plate (3) and a positioning bolt (301). The fixing plate (3) is fixedly provided on the outer surface of the turntable (201), and the fixing plate (3) is threadedly connected with the positioning bolt (301).

7. The water pump pulley according to claim 6, characterized in that: The positioning bolt (301) is made of rubber, and the end of the positioning bolt (301) is provided with a frosted layer.

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