Clutch booster convenient to package

Abstract

The utility model relates to the technical field of clutch boosters, in particular to a clutch booster convenient to package, which comprises a clutch booster main body and a push rod, the clutch booster body comprises a cylinder body, a cylinder cover fixed to the opening end of the cylinder body, a piston inserted into the cylinder body in a sleeved mode and a main shaft connected with the piston. A ball socket hole and an annular groove formed in the opening portion of the ball socket hole are formed in the end, close to the cylinder cover, of the main shaft, and an O-shaped ring is connected into the annular groove in a sleeved mode. A small-diameter shaft and a ball head are formed at one end of the push rod, and the ball head is matched with the ball socket hole. The clutch booster body and the push rod are arranged in a split mode, so that the length of a packaging box can be effectively reduced, and the packaging and transporting cost is reduced; and the O-shaped ring is arranged in the ball socket hole, so that the push rod is convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of clutch booster technology, and in particular to a clutch booster that is easy to package. Background Technology

[0002] The clutch booster consists of a clutch booster body and a push rod, with the push rod mounted at one end of the clutch booster body. Due to the length of the push rod, the clutch booster requires a relatively long packaging box for installation, as shown in the instruction manual. Figure 6 As shown, this increases packaging and transportation costs. Utility Model Content

[0003] The purpose of this utility model is to provide a clutch booster that is easy to package. By separating the clutch booster body and the push rod, the length of the packaging box can be effectively reduced, thus reducing packaging and transportation costs. By setting an O-ring in the ball socket hole, the installation of the push rod is convenient.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A conveniently packaged clutch booster includes a separate clutch booster body and a push rod;

[0006] The clutch booster body includes a cylinder body, a cylinder head fixed to the open end of the cylinder body, a piston inserted into the cylinder body, and a main shaft connected to the piston; the end of the main shaft near the cylinder head is formed with a ball socket and an annular groove provided at the opening of the ball socket, and an O-ring is fitted in the annular groove; one end of the push rod is formed with a small diameter shaft and a ball head, and the ball head mates with the ball socket.

[0007] With the above technical solution, during packaging, the push rod is located on the outside of the clutch booster and can be packaged together in a relatively short box. Before installation on the main unit, the customer can insert the ball end into the ball socket. The ball end compresses the O-ring, deforming it and forcing the ball end into the ball socket, thus allowing the push rod to be easily and quickly installed onto the clutch booster body. After installation, the O-ring can block the ball end, preventing the push rod from detaching from the clutch booster body.

[0008] The present invention is further configured such that: the ball-and-socket hole includes an integrally formed hemispherical hole and a cylindrical hole, and the annular groove is formed on the inner wall of the cylindrical hole.

[0009] The diameter of the cylindrical hole is set with a clearance fit to the outer diameter of the ball head.

[0010] The present invention is further configured such that: the end of the main shaft is formed with a tapered hole with a larger outer diameter and a smaller inner diameter that communicates with the ball socket hole. The ball head of the push rod can be easily inserted into the ball socket hole through the tapered hole, which serves as a guide. At the same time, the push rod can rotate relative to the ball socket hole.

[0011] The present invention is further configured such that the diameter of the annular groove at the end near the hemispherical hole is greater than the diameter of the annular groove at the end away from the hemispherical hole.

[0012] With the above technical solution, when the ball head is inserted, the O-ring moves inward as a whole, that is, towards the larger end of the annular groove. The O-ring has more deformation space, which facilitates the insertion of the ball head. After the ball head is inserted, if the ball head wants to disengage from the ball socket, the O-ring moves outward as a whole, that is, towards the smaller end of the annular groove. The deformation space of the O-ring cavity is relatively reduced, which can play a better blocking role and reduce the probability of the push rod disengaging from the clutch booster body.

[0013] The present invention is further configured such that: a shaft hole is formed in the middle of the piston;

[0014] The main shaft has a protruding ring formed at its outer end through the shaft hole, and a retaining ring is sleeved on the main shaft. The retaining ring and the protruding ring are located on both sides of the shaft hole and are close to the end face of the shaft hole.

[0015] A sealing ring is provided between the main shaft and the shaft hole.

[0016] The axial movement of the spindle in the shaft hole can be limited by the convex ring and the retaining ring, and the connection between the spindle and the piston can be sealed by the sealing ring to prevent gas leakage during power supply.

[0017] The present invention is further configured such that: a clearance through hole is formed in the middle of the cylinder head, and a dust cover is provided on the clearance through hole.

[0018] By setting up a dust cover, external dust and other impurities can be effectively prevented from entering the cylinder, thus ensuring an effective working environment for the cylinder and piston.

[0019] The present invention is further configured such that the dust cover is in the shape of a conical corrugated tube;

[0020] The outer end of the dust cover is formed with a push rod hole, and the push rod hole is configured to be interference-fitted with the outer diameter of the push rod.

[0021] During installation, the ball head of the push rod is first inserted into the push rod hole. The push rod then deforms the push rod hole by pressing it, thus inserting the push rod into the hole. The corrugated dust cover allows the dust cover to have the ability to move and deform, which is used to cooperate with the movement of the push rod.

[0022] The outstanding effect of this utility model is:

[0023] Compared with existing technologies, by separating the push rod and the clutch booster body, the length of the packaging box can be effectively reduced, thereby reducing packaging and transportation costs.

[0024] By setting an O-ring in the ball socket, the insertion of the push rod is facilitated, and the push rod is also prevented from automatically disengaging from the clutch booster body.

[0025] Setting up a dust cover can effectively prevent external dust and other impurities from entering the cylinder. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 A magnified view of a specific area (A);

[0028] Figure 3 This is a partial schematic diagram of the main shaft according to an embodiment of the present utility model;

[0029] Figure 4 A schematic diagram showing the push rod being installed into the clutch booster body;

[0030] Figure 5 This is a schematic diagram of the clutch booster of this utility model being packed into a packaging box;

[0031] Figure 6 This is a diagram showing the original product's clutch booster being packed into a box.

[0032] Reference numerals: 1. Clutch booster body; 10. Cylinder block; 11. Cylinder head; 12. Piston; 13. Main shaft; 14. O-ring; 15. Retaining ring; 16. Sealing ring;

[0033] 111. Allowance through hole;

[0034] 121. Shaft hole; 122. convex ring;

[0035] 131. Ball-and-socket hole; 132. Annular groove; 133. Tapered hole;

[0036] 1311, Hemispherical hole; 1312, Cylindrical hole;

[0037] 171. Push rod hole;

[0038] 20. Push rod;

[0039] 30. Packaging boxes. Detailed Implementation

[0040] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0041] The following is for reference Figures 1 to 5 The embodiments of this utility model are described below:

[0042] A conveniently packaged clutch booster, such as Figure 1 As shown, it includes a clutch booster body 1 and a push rod 20 that are set up separately;

[0043] like Figure 2 As shown, the clutch booster body 1 includes a cylinder 10, a cylinder head 11 fixed to the open end of the cylinder 10, a piston 12 inserted into the cylinder 10, and a main shaft 13 connected to the piston 12; the main shaft 13 near the cylinder head 11 has a ball socket hole 131 and an annular groove 132 provided at the opening of the ball socket hole 131, and an O-ring 14 is sleeved in the annular groove 132; one end of the push rod 20 has a small diameter shaft 201 and a ball head 202, and the ball head 202 cooperates with the ball socket hole 131.

[0044] With the above technical solution, during packaging, the push rod is located on the outside of the clutch booster and can be packaged together in a relatively short box. Before installation on the main unit, the customer can insert the ball end into the ball socket. The ball end compresses the O-ring, deforming it and forcing the ball end into the ball socket, thus allowing the push rod to be easily and quickly installed onto the clutch booster body. After installation, the O-ring can block the ball end, preventing the push rod from detaching from the clutch booster body.

[0045] like Figure 3 As shown, the ball-and-socket hole 131 of this embodiment includes an integrally formed hemispherical hole 1311 and a cylindrical hole 1312, and the annular groove 132 is formed on the inner wall of the cylindrical hole 1312.

[0046] The diameter of the cylindrical hole 1312 is set to be clearance-fitted with the outer diameter of the ball head.

[0047] like Figure 3 As shown, the end of the spindle 13 in this embodiment is formed with a tapered hole 133 that is larger on the outside and smaller on the inside and communicates with the ball socket hole 131. The ball head of the push rod can be easily inserted into the ball socket hole through the tapered hole, which serves as a guide. At the same time, the push rod can rotate relative to the ball in the tapered hole.

[0048] like Figure 3 As shown, in this embodiment, the diameter of the annular groove 132 near the hemispherical hole 1311 is larger than the diameter of the annular groove 132 away from the hemispherical hole 1311.

[0049] When the ball head is inserted, the O-ring moves inward as a whole, that is, towards the larger end of the annular groove. The O-ring has more deformation space, which facilitates the insertion of the ball head. After the ball head is inserted, if the ball head wants to disengage from the ball socket, the O-ring moves outward as a whole, that is, towards the smaller end of the annular groove. The deformation space of the O-ring cavity is relatively reduced, which can play a better blocking role and reduce the probability of the push rod disengaging from the clutch booster body.

[0050] like Figure 2As shown, the piston 12 in this embodiment has a shaft hole 121 formed in the middle.

[0051] The main shaft 13 has a protruding ring 122 formed on its outer end through the shaft hole 121. A retaining ring 15 is sleeved on the main shaft 13. The retaining ring 15 and the protruding ring 122 are located on both sides of the shaft hole 121 and are close to the end face of the shaft hole 121.

[0052] A sealing ring 16 is provided between the main shaft 13 and the shaft hole 121.

[0053] The axial movement of the spindle in the shaft hole can be limited by the convex ring and the retaining ring, and the connection between the spindle and the piston can be sealed by the sealing ring to prevent gas leakage during power supply.

[0054] like Figure 2 As shown, the cylinder head 11 of this embodiment has a clearance through hole 111 formed in the middle, and a dust cover 17 is provided on the clearance through hole 111.

[0055] By setting up a dust cover, external dust and other impurities can be effectively prevented from entering the cylinder, thus ensuring an effective working environment for the cylinder and piston.

[0056] The present invention is further configured such that the dust cover 17 is in the shape of a conical corrugated tube;

[0057] The outer end of the dust cover 17 is formed with a push rod hole 171, and the push rod hole 171 is configured to be interference-fitted with the outer diameter of the push rod 20.

[0058] During installation, the ball head of the push rod is first inserted into the push rod hole. The push rod then deforms the push rod hole by pressing it, thus inserting the push rod into the hole. The corrugated dust cover allows the dust cover to have the ability to move and deform, which is used to cooperate with the movement of the push rod.

[0059] In this embodiment, the product is placed in the packaging box as follows: Figure 5 As shown, the original products are placed inside the packaging box as follows: Figure 6 As shown, in comparison, the product length of this embodiment is effectively reduced, thereby effectively reducing the length of the packaging box, reducing packaging costs, and also reducing transportation costs.

[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A conveniently packaged clutch booster, characterized by: The clutch booster body (1) and the push rod (20) are arranged separately. The clutch booster body (1) comprises a cylinder body (10), a cylinder cover (11) fixed at the open end of the cylinder body (10), a piston (12) sleeved in the cylinder body (10), and a main shaft (13) connected with the piston (12); the end of the main shaft (13) close to the cylinder cover (11) is formed with a ball socket hole (131) and an annular groove (132) arranged at the opening of the ball socket hole (131), and an O-ring (14) is sleeved in the annular groove (132); one end of the push rod (20) is formed with a small-diameter shaft (201) and a ball head (202), and the ball head (202) is matched with the ball socket hole (131).

2. A conveniently packaged clutch booster as defined in claim 1, wherein: The ball socket hole (131) comprises an integral hemispherical hole (1311) and a cylindrical hole (1312), and the annular groove (132) is formed on the inner wall of the cylindrical hole (1312).

3. A conveniently packaged clutch servomotor according to claim 2, wherein: The end of the main shaft (13) is formed with a tapered hole (133) which is in communication with the ball socket hole (131) and is arranged with a large outer diameter and a small inner diameter.

4. A conveniently packaged clutch servomotor according to claim 2, wherein: The diameter of the annular groove (132) close to the hemispherical hole (1311) is larger than that of the annular groove (132) away from the hemispherical hole (1311).

5. A conveniently packaged clutch servomotor according to claim 1 wherein: The middle part of the piston (12) is formed with a shaft hole (121). The outer end of the main shaft (13) passing through the shaft hole (121) is formed with a convex ring (122), a retaining ring (15) is sleeved on the main shaft (13), and the retaining ring (15) and the convex ring (122) are located on both sides of the shaft hole (121) and are arranged close to the end face of the shaft hole (121). The main shaft (13) and the shaft hole (121) are provided with a sealing ring (16).

6. A conveniently packaged clutch servomotor according to claim 1 wherein: The middle part of the cylinder cover (11) is formed with a let-out through hole (111), and the let-out through hole (111) is provided with a dust cover (17).

7. A conveniently packaged clutch servomotor according to claim 6 wherein: The dust cover (17) is in the shape of a conical bellows. The outer end of the dust cover (17) is formed with a push rod hole (171), and the push rod hole (171) is arranged in interference fit with the outer diameter of the push rod (20).

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