CN108032243A - The sleeve of adjustable caliber size - Google Patents

Abstract

The invention discloses a sleeve with adjustable caliber, which comprises a housing with an inner cavity, a clasp sleeved on the housing and a caliber adjustment assembly arranged in the inner cavity, the clasp During the rotation of the ring, at least two members in the caliber adjustment assembly in a hinged relationship move in position, so as to adjust the caliber of the caliber adjustment assembly. The invention solves the technical problem of complex and labor-intensive steps in the process of adjusting the size of the caliber in the prior art, so as to simplify the operation and improve the adjustment accuracy and labor saving of the caliber.

Description

Adjustable caliber sleeve

technical field

The invention relates to the field of sleeve tools, in particular to a sleeve with adjustable caliber.

Background technique

At present, most of the existing wrench tools with adjustable caliber size, among them, for the sleeve equipment used on the socket wrench, in the process of adjusting the caliber size, because the existing sleeve equipment mostly uses threaded fasteners to The caliber is limited, that is, in the process of adjusting the caliber, the operator needs to use an additional screwdriver to adjust the caliber, so the method of adjusting the caliber that requires additional operating tools is very complicated and inconvenient, which greatly reduces the use efficiency , and very laborious.

Therefore, the prior art needs to be improved.

Contents of the invention

The purpose of the present invention is to provide a sleeve with adjustable caliber to solve the technical problem of complex and laborious steps in the process of adjusting the caliber in the prior art, so as to simplify the operation and increase the size of the caliber Adjustment accuracy and labor saving.

In order to solve the above-mentioned technical problems, the adjustable sleeve of the present invention includes a casing with an inner cavity, a snap ring sleeved on the casing, and a caliber adjustment assembly arranged in the inner cavity, During the rotation of the clasp, at least two members in the caliber adjustment assembly that are hinged move in position to adjust the caliber of the caliber adjustment assembly.

Preferably, the caliber adjustment assembly includes a connecting rod and a clamping piece, one end of the connecting rod is hinged to one end of the clamping piece, the other end of the connecting rod is hinged to a clasp, and the other end of the clamping piece is hinged to the clamping piece. The housing is hinged.

Preferably, there are three connecting rods, three clamping parts, and each clamping part is hinged to the housing, one end of each connecting rod is hinged to the corresponding clamping part, and the other end of each connecting rod One end is hinged to the corresponding position on the snap ring.

Preferably, a spring is further included, the spring is built in the inner cavity, one end of the spring is fixed to the housing, and the other end of the spring is fixed to the clamping member.

Preferably, a pawl fixed to the housing is further included, and the tip of the pawl is embedded in the bayonet teeth on the inner surface of the clasp.

Preferably, it also includes a reset ring sleeved on the housing side by side with the snap ring, the reset ring is provided with a first groove, and the pawl is provided with a of bumps.

Preferably, the inner surface of the snap ring is provided with a second groove, and the other end of the connecting rod is embedded in the second groove and hinged to the second groove.

The sleeve with adjustable caliber of the present invention is mainly based on the snap ring sleeved on the housing and the caliber adjustment assembly arranged in the inner cavity. When the user rotates the snap ring, the At least two components in a hinged relationship in the caliber adjustment assembly move to adjust the caliber; no additional tools are used in the whole process, and only the snap ring needs to be rotated. Based on the principle of four-bar mechanism movement, a series of driven The size of the caliber can be adjusted by moving between the mechanisms; the steps of adjusting the size of the caliber are simplified; and based on the hinged relationship between the snap ring sleeved on the housing and the mechanisms, the initial force required to rotate the snap ring is relatively small. Small and effortless.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a schematic structural view of a clamping member and a connecting rod in an embodiment of the present invention;

3 is a partially enlarged schematic view of an embodiment of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The present invention will be further illustrated by specific examples below, but it should be understood that these examples are only used for more detailed description, and should not be construed as limiting the present invention in any form.

It should be noted that relative terms such as "first", "second" and so on may be used to describe various components, but these terms do not limit the components. These terms are only used to distinguish one component from another. For example, without departing from the scope of the present invention, a first component may be called a second component, and a second component may similarly be called a first component. The term "and/or" refers to any one or more combination of related items and described items. In this paper, hinge refers to an existing connection relationship between two structures that can still move relative to each other after being fixed.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

As shown in Figure 1, the sleeve with adjustable caliber size of the present invention includes a housing 1 with an inner cavity, a snap ring 2 sleeved on the housing 1 and a caliber set in the inner cavity The adjustment assembly 3 , during the rotation of the clasp 2 , at least two members in the caliber adjustment assembly 3 in a hinged relationship move in position, so as to adjust the caliber of the caliber adjustment assembly 3 . In this embodiment, the housing 1 is used to connect with the rod-shaped component, so that the sleeve can form a socket wrench, so as to increase the operating distance and facilitate the operation. The sleeve with adjustable diameter of the present invention is mainly based on the clasp set on the housing and the bore adjustment assembly arranged in the inner cavity, when the user rotates the clasp in the f direction , the positions of at least two components in a hinged relationship in the caliber adjustment assembly move to adjust the caliber size; the whole process does not use additional tools, only need to rotate the snap ring, based on the principle of four-bar mechanism, a series of The size of the caliber can be adjusted by moving between the driven mechanisms; the steps of adjusting the size of the caliber are simplified; and based on the hinged relationship between the clasp set on the housing and the mechanism, the force required to rotate the clasp is Smaller, less effort. Wherein, the aperture is a structure on the aperture adjustment assembly, and may also be surrounded by a mechanism in the aperture adjustment assembly.

Referring to FIG. 2 , FIG. 2 is a schematic structural diagram of a clamping member and a connecting rod in an embodiment of the present invention.

As shown in Figure 2, preferably, the caliber adjustment assembly includes a connecting rod 31 and a clamping member 32, one end of the connecting rod 31 is hinged to one end of the clamping member 32, and the other end of the connecting rod 31 is connected to the clasp 2 is hinged, and the other end of the clamping member 32 is hinged with the housing; this preferred embodiment defines the structure of the caliber adjustment assembly. During the rotation of the snap ring 2, based on the other end of the connecting rod 31 and the The snap ring 2 is hinged, and the snap ring 2 drives the position of the connecting rod 31 to move, and based on the fact that one end of the connecting rod 31 is hinged with one end of the clamping member 32, the position movement of the connecting rod 31 will also drive the clamping member. The position of the tightening member 32 moves to adjust the size of the caliber. Wherein, as shown in FIG. 2, preferably, there are three connecting rods 31, three clamping members 32 and each clamping member 32 is hinged with the housing, and one end of each connecting rod 31 is connected to the corresponding The clamping parts 32 are hinged, and the other end of each connecting rod 31 is hinged with the corresponding position on the snap ring 2; this preferred embodiment limits the number of connecting rods and clamping parts so that during the caliber adjustment process, the snap During the rotation of the ring 2 in the direction a, each connecting rod will drive the corresponding clamping part to move at the same time, for example: the moving direction of the connecting rod can be in the b direction, and then drive the clamping part to move to adjust the size of the caliber , in this process, the three clamping parts move at the same time, which improves the accuracy in the process of adjusting the size of the caliber; wherein, the caliber is formed by the pressing surface 50 of the three clamping parts. Triangular void composition. Preferably, as shown in FIG. 2 , the inner surface of the snap ring 2 is provided with a second groove 23 , and the other end of the connecting rod 31 is embedded in the second groove 23 and connected with the second groove. 23 hinged, this preferred embodiment defines the structure of the clasp 2, by inserting the other end of the connecting rod into the second groove and hinged with the second groove, so that the connecting rod and the clamping piece are inside During the respective movements in the cavity, the connecting rod is prevented from colliding with the inner surface of the inner cavity, so as to improve the space utilization rate in the inner cavity.

Referring to FIG. 4 , FIG. 4 is a schematic diagram of an internal structure of an embodiment of the present invention.

As shown in FIG. 4 , preferably, a spring 6 is also included, the spring 6 is built in the inner cavity, one end of the spring 6 is fixed to the housing 1 , and the other end is connected to the clamping member 32 Fixed; this preferred embodiment uses an additional spring to make the sleeve have a reset function; that is, after the snap ring rotates, when it needs to return to the original position, the snap ring can be reset based on the spring force, which is a humanized design , easy to operate.

As shown in FIG. 2 , preferably, it also includes a ratchet 22 fixed to the housing, and the tip of the ratchet 22 is embedded on the latch 21 on the inner surface of the clasp 2 ; wherein, the latch 21 is The unidirectional teeth in an arrangement, the present preferred embodiment is set by the ratchet, so that the locking function is realized; that is, in the process of adjusting the size of the caliber, the tip of the ratchet is embedded in the locking tooth 21, that is, the locking tooth gives the tip a large The resistance makes the clasp 2 locked every time the caliber changes during the rotation process. The clasp is applied with a large resistance based on the connection relationship between the tip and the bayonet, and has a locking function. As a preference of this embodiment, as shown in Figure 3, it also includes a reset ring 4 sleeved on the housing side by side with the snap ring, the reset ring 4 is provided with a first groove 41, and the ratchet The pawl is provided with a protrusion adapted to the first groove 41; this preferred embodiment realizes the reset and reset function of the initial size of the caliber through the setting of the reset ring; the details are as follows, when the tip of the ratchet 22 snaps into the locking tooth 21, the size of the caliber is fixed at this time, and the locking is realized based on the cooperation between the tip and the bayonet; and when the reset ring is rotated, the first groove 41 of the reset ring pulls the protrusion 22 of the pawl to move, so that the pawl The tip breaks away from the locking teeth within a certain period of time, and at the same time, based on the elastic force of the spring, the caliber adjustment member is reset to realize the reset; at the same time, the reset ring 4 is sleeved on the housing side by side with the snap ring, and it is also a rotation method, which is very easy to operate. Labor-saving, and because the distance between the two is very close, the operation is convenient.

While the invention has been described to a certain extent, it will be obvious that various changes may be made in various conditions without departing from the spirit and scope of the invention. It is to be understood that the invention is not limited to the described embodiments, but rather falls within the scope of the claims, which include equivalents to each of the elements described.

Claims (7)

1. a kind of sleeve of adjustable caliber size, it is characterised in that including the housing with inner cavity and be set in the housing On snap ring and the bore adjusting part that is arranged in the inner cavity, during rotation, the bore is adjusted the snap ring Position movement occurs at least two components of hinged relationship in component, to adjust the caliber size of the bore adjusting part.

2. the sleeve of adjustable caliber size as claimed in claim 1, it is characterised in that the bore adjusting part includes connecting rod And clamping element, described connecting rod one end are hinged with described clamping element one end, the connecting rod other end is hinged with snap ring, the clamping element The other end and the housing hinge.

3. the sleeve of adjustable caliber size as claimed in claim 2, it is characterised in that the connecting rod is three, the clamping Part is three and each clamping element and housing hinge, one end of each connecting rod are hinged with corresponding clamping element, each connecting rod Other end position corresponding with snap ring is hinged.

4. the sleeve of adjustable caliber size as claimed in claim 2, it is characterised in that spring is further included, built in the spring In the inner cavity, the spring one end is fixed with the housing, and the other end is fixed with the clamping element.

5. the sleeve of adjustable caliber size as claimed in claim 2, it is characterised in that further include the spine fixed with the housing Pawl, the tip of the pawl are embedded on the latch of the snap ring inner surface.

6. the sleeve of adjustable caliber size as claimed in claim 5, it is characterised in that further include and be arranged side by side with the snap ring Reset ring on the housing, the reset are equipped with the first groove, and the pawl is equipped with and is adapted to first groove Convex block.

7. the sleeve of adjustable caliber size as claimed in claim 2, it is characterised in that the inner surface of the snap ring is equipped with second Groove, the connecting rod other end are embedded into second groove and are hinged with second groove.