CN216811274U

CN216811274U - Wear-resisting door handle

Info

Publication number: CN216811274U
Application number: CN202220212458.3U
Authority: CN
Inventors: 王文洪; 杜先发
Original assignee: Shantou Chenghai Jiesen Hardware Co ltd
Current assignee: Shantou Chenghai Jiesen Hardware Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-06-24
Anticipated expiration: 2032-01-26

Abstract

The utility model relates to a wear-resistant door handle which comprises a base, a handle, a connecting rod, a positioning seat, a cylindrical pin and an elastic resetting mechanism, wherein the handle is rotatably arranged on the base; a sliding channel is arranged in the inner cavity of the base, the inner end of the sliding channel corresponds to one of the positioning grooves, the elastic resetting mechanism is arranged at the outer end of the sliding channel, and the cylindrical pin is arranged in the sliding channel and is positioned between the positioning groove and the elastic output end of the elastic resetting mechanism; the handle is connected with the handle mounting head; the upper part of the connecting rod is fixedly arranged at the lower end of the positioning seat. The utility model can increase the contact area of internal parts when rotating, reduce abrasion, is not easy to generate dislocation and improves the service life and safety of the door handle.

Description

Wear-resisting door handle

Technical Field

The utility model relates to the technical field of door lock accessories, in particular to a wear-resistant door handle.

Background

The door handle is an object which is installed on a door and is convenient for opening and closing the door by hands. People need to continuously get in and out of doors and touch door handles in daily life. The inside rotating part of current door handle adopts circular ball and drive wheel to cooperate mutually to realize pivoted usually, a point on this kind of circular ball and the wheel face contact of drive wheel belong to point face contact, area of contact between circular ball and the drive wheel is little, because frequently rotate lead to wearing and tearing seriously between circular ball and the drive wheel easily, and also drop more easily, easily take place the dislocation between circular ball and the drive wheel when rotating and lead to the lock to be difficult to open, the use of giving people has brought certain adverse effect, cause the life and the security reduction of door handle.

Disclosure of Invention

The utility model aims to provide a wear-resistant door handle which can increase the contact area of internal parts during rotation, reduce wear, prevent dislocation and improve the service life and safety of the door handle.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a wear-resisting door handle, includes base, handle and connecting rod, and the handle is rotatable to be installed on the base, and the connecting rod upper end is connected with the handle, and the axis of rotation of connecting rod coincides its characterized in that with the axis of rotation of handle: the positioning seat comprises a positioning wheel, a connecting part and a handle mounting head which are sequentially arranged from bottom to top, and a plurality of positioning grooves which are uniformly distributed along the circumferential direction are formed in the peripheral surface of the positioning wheel; the top surface of the base is provided with a first through hole, the connecting part of the positioning seat is positioned in the first through hole, the handle mounting head is exposed above the first through hole, and the positioning wheel is positioned in the inner cavity of the base; the inner cavity of the base is provided with at least one sliding channel, the sliding channels and the elastic reset mechanisms are the same in number and correspond to the cylindrical pins one by one, the inner ends of the sliding channels correspond to one of the positioning grooves, the elastic reset mechanisms are installed at the outer ends of the sliding channels, and the cylindrical pins are arranged in the sliding channels and are positioned between the positioning grooves and the elastic output ends of the elastic reset mechanisms; the handle is connected with the handle mounting head; the upper part of the connecting rod is fixedly arranged at the lower end of the positioning seat.

The sliding channel has limiting and guiding functions on the cylindrical pin and the elastic reset mechanism, and can guide the cylindrical pin to move inside and outside more stably.

After with base fixed mounting on the door, exert torsion with the hand shank, the handle rotates around its axis of rotation, every time the handle rotates certain angle, then the positioning seat, the connecting rod also rotates certain angle, when the positioning seat rotates left or right side, the cylindric lock outwards contracts under elastic reset mechanism's elastic action, make the cylindric lock break away from the positioning groove on the locating wheel, after the outer wall of cylindric lock continues to remove the certain distance along the wheel face of locating wheel, the cylindric lock stretches out inwards under elastic reset mechanism's elastic action, make the cylindric lock landing to in another positioning groove, realize a position switching of positioning seat.

As a preferable scheme of the present invention, the number of the cylindrical pins is two, the number of the elastic return mechanisms is two, the number of the sliding channels is two, the two sliding channels are oppositely disposed in the inner cavity of the base, and the corresponding cylindrical pins and the elastic return mechanisms are disposed in the corresponding sliding channels. Through this kind of setting for the cylindric lock of two relative settings can cooperate better with two positioning groove on the locating wheel, makes this kind of door handle's rotating-structure more balanced stable, is difficult for taking place the dislocation.

In a preferred embodiment of the present invention, the groove surface of the positioning groove is arc-shaped. The arc groove face of the positioning groove can be in contact fit with the outer wall of the cylindrical pin better.

As a preferable scheme of the present invention, the elastic reset mechanism includes a reset spring and a positioning block, an inner side surface of the positioning block is arc-shaped, an outer side surface of the positioning block is provided with a positioning convex column, an inner side surface of the positioning block is in close contact with an outer wall of the cylindrical pin, an inner end of the reset spring is sleeved on the positioning convex column, and an outer end of the reset spring is connected with or in close contact with an outer end of the sliding channel. Above-mentioned reset spring passes through the locating piece and applys inward effort to the cylindric lock, can make the groove face of positioning groove is hugged closely to the outer wall of cylindric lock to make the position of locating wheel remain stable. The positioning convex column on the positioning block positions the inner end of the return spring, so that the contact between the return spring and the cylindrical pin is prevented from being misplaced; the arc medial surface of locating piece can be with the better contact cooperation of the outer wall of cylindric lock. Generally, the positioning block is made of plastic.

As a preferable scheme of the utility model, the positioning device further comprises a limiting sleeve, the limiting sleeve is sleeved on the connecting portion of the positioning seat and is positioned in the inner cavity of the base, at least one strip-shaped limiting groove is arranged at the edge of the limiting sleeve, the strip-shaped limiting groove forms the sliding channel, the inner end of the strip-shaped limiting groove is communicated with the positioning groove, and the cylindrical pin and the elastic reset mechanism are both positioned in the strip-shaped limiting groove. The cylindrical pin and the elastic reset mechanism are uniformly arranged in the strip-shaped limit groove of the limit sleeve, so that the cylindrical pin and the elastic reset mechanism can be conveniently installed.

As a further preferred scheme of the utility model, the base comprises a shell, a top cover and a bottom cover, wherein an accommodating cavity capable of accommodating the positioning seat and the limiting sleeve is arranged in the shell; the top cover is fixedly arranged on the top of the shell, an upper through hole is formed in the top cover, the first through hole is formed in the top of the shell, and the edge of the first through hole penetrates through the upper through hole and is located on the outer side of the upper through hole; the handle mounting head is positioned outside the upper through hole; the bottom cover is fixedly arranged at the bottom of the shell, a lower through hole is formed in the bottom cover, and the connecting rod extends out of the outer side of the lower through hole. Generally, the left and right ends of the top cover and the bottom cover are connected to the left and right ends of the housing by connectors (e.g., bolts or screws).

As a further preferable scheme of the present invention, the handle further comprises an elastic annular gasket, the elastic annular gasket is sleeved on the outer edge of the first through hole, the upper end of the elastic annular gasket is in contact fit with the handle, and the lower end of the elastic annular gasket is in contact fit with the inner edge of the upper through hole. The elastic annular gasket has elasticity, and can reduce friction between the handle and the top cover when the handle rotates. The elastic annular gasket is made of plastic.

As a further preferable scheme of the present invention, the handle further comprises a nylon sleeve, the nylon sleeve is located between the handle and the edge of the first through hole, the upper side surface of the nylon sleeve is in close contact with the lower end of the handle, and the lower side surface of the nylon sleeve is in close contact with the upper end of the edge of the first through hole. Because the nylon cover has elasticity, consequently can firmly set up between handle and first through-hole border, increase the stability of handle installation on the base.

As a preferable scheme of the utility model, the cross section of the connecting rod is polygonal (such as square) or elliptical, and can be other non-circular shapes; the lower end of the positioning seat is provided with a jack matched with the upper part of the connecting rod in shape and size, so that the connecting rod can rotate along with the positioning seat and the handle. In a specific scheme, the cross section of the connecting rod is square, and the lower end of the positioning seat is provided with a square insertion hole matched with the upper part of the connecting rod.

As a further preferable scheme of the utility model, the positioning device further comprises a locking screw, wherein a strip-shaped through hole which runs up and down is arranged in the positioning seat, the strip-shaped through hole is positioned above the jack and is communicated with the jack, and the aperture of the strip-shaped through hole is smaller than that of the jack; the handle is provided with a screw hole, the rod part of the locking screw penetrates through the strip-shaped through hole to be inserted into the screw hole, the head part of the locking screw is positioned in the jack, and the head part of the locking screw and the screw hole together lock the handle on the handle mounting head.

As a further preferable aspect of the present invention, the cross-sectional shape of the handle mounting head is a polygon (e.g., square) or an ellipse, and may be other non-circular shapes; the shape and the size of the screw hole are matched with those of the handle mounting head. In a specific scheme, the cross section of the handle mounting head is in a regular hexagon shape, and the screw hole is also in a regular hexagon shape.

Compared with the prior art, the utility model has the following advantages:

the wear-resisting door handle is matched with the positioning groove on the positioning wheel through the outer wall of the cylindrical pin, so that the groove surface contact mode of the outer wall of the cylindrical pin and the positioning groove is changed into line surface contact, the contact area of the inner parts during rotation is increased, abrasion is reduced, dislocation is not prone to occurring, and the service life and the safety of the door handle are improved.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the door handle of FIG. 1, as assembled;

fig. 3 is a transverse cross-sectional view of the door handle of fig. 1 assembled.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the wear-resistant door handle in this embodiment includes a base 1, a handle 2, a connecting rod 3, a positioning seat 4 capable of rotating with the handle 2, two cylindrical pins 5, and two elastic restoring mechanisms 6, wherein the handle 2 is rotatably mounted on the base 1, the upper end of the connecting rod 3 is connected with the handle 2, and the rotation axis of the connecting rod 3 coincides with the rotation axis of the handle 2; the positioning seat 4 comprises a positioning wheel 41, a connecting part 42 and a handle mounting head 43 which are arranged from bottom to top in sequence, and a plurality of positioning grooves 411 which are uniformly distributed along the circumferential direction are arranged on the outer circumferential surface of the positioning wheel 41; the top surface of the base 1 is provided with a first through hole 11, the connecting part 42 of the positioning seat 4 is positioned in the first through hole 11, the handle mounting head 43 is exposed above the first through hole 11, and the positioning wheel 41 is positioned in the inner cavity of the base 1; two opposite sliding channels 12 are arranged in the inner cavity of the base 1, the inner end of each sliding channel 12 corresponds to one positioning groove 411, the elastic reset mechanism 6 is arranged at the outer end of each sliding channel 12, and the cylindrical pin 5 is arranged in each sliding channel 12 and is positioned between the corresponding positioning groove 411 and the elastic output end of the elastic reset mechanism 6; the handle 2 is connected with the handle mounting head 43; the upper part of the connecting rod 3 is fixedly arranged at the lower end of the positioning seat 4.

The sliding channel 12 has the limiting and guiding functions on the cylindrical pin 5 and the elastic resetting mechanism 6, and can guide the cylindrical pin 5 to move inwards and outwards more stably.

Set up the slide channel 12 of two relative settings in the inner chamber of base 1, corresponding cylindric lock 5, elasticity canceling release mechanical system 6 are in corresponding slide channel 12 for two cylindric locks 5 that set up relatively can cooperate better with two positioning groove 411 on the locating wheel 41, make this kind of door handle's rotating-structure more balanced stable, difficult emergence dislocation.

The groove surface of the positioning groove 411 is arc-shaped. The arc-shaped groove surface of the positioning groove 411 can be in better contact fit with the outer wall of the cylindrical pin 5.

The elastic reset mechanism 6 comprises a reset spring 61 and a positioning block 62, the inner side 621 of the positioning block 62 is arc-shaped, the outer side of the positioning block 62 is provided with a positioning convex column 622, the inner side 621 of the positioning block 62 is in close contact with the outer wall of the cylindrical pin 5, the inner end of the reset spring 61 is sleeved on the positioning convex column 622, and the outer end of the reset spring 61 is connected with or in close contact with the outer end of the sliding channel 12. The return spring 61 applies an inward urging force to the pin 5 through the positioning block 62, so that the outer wall of the pin 5 is brought into close contact with the groove surface of the positioning groove 411, thereby stabilizing the position of the positioning wheel 41. The positioning convex column 622 on the positioning block 62 positions the inner end of the return spring 61, so that the contact between the return spring 61 and the cylindrical pin 5 is prevented from being dislocated; the arc inner side surface 621 of the positioning block 62 can be in better contact fit with the outer wall of the cylindrical pin 5. The positioning block 62 is usually made of plastic.

The embodiment further comprises a limiting sleeve 7, the limiting sleeve 7 is sleeved on the connecting portion 42 of the positioning seat 4 and is located in the inner cavity of the base 1, two strip-shaped limiting grooves 71 which are oppositely arranged are formed in the edge of the limiting sleeve 7, the strip-shaped limiting grooves 71 form the sliding channel 12, the inner ends of the strip-shaped limiting grooves 71 are communicated with the positioning groove 411, and the cylindrical pin 5 and the elastic reset mechanism 6 are located in the strip-shaped limiting grooves 71. The cylindrical pin 5 and the elastic resetting mechanism 6 are uniformly arranged in the strip-shaped limiting groove 71 of the limiting sleeve 7, so that the cylindrical pin 5 and the elastic resetting mechanism 6 can be conveniently installed.

The base 1 comprises a shell 13, a top cover 14 and a bottom cover 15, wherein an accommodating cavity capable of accommodating the positioning seat 4 and the limiting sleeve 7 is formed in the shell 13; the top cover 14 is fixedly arranged at the top of the shell 13, the top cover 14 is provided with an upper through hole 141, the first through hole 11 is arranged at the top of the shell 13, and the edge of the first through hole 11 penetrates through the upper through hole 141 and is positioned at the outer side of the upper through hole 141; the handle mounting head 43 is positioned outside the upper through hole 141; the bottom cover 15 is fixedly arranged at the bottom of the shell 13, a lower through hole 151 is formed in the bottom cover 15, and the connecting rod 3 extends out of the lower through hole 151. Generally, the left and right ends of the top cover 14 and the bottom cover 15 are connected to the left and right ends of the housing 13 by connectors (e.g., bolts or screws), respectively.

This embodiment still includes elasticity annular gasket 8, and elasticity annular gasket 8 suit is in on the outer border of first through-hole 11 to the upper end of elasticity annular gasket 8 with handle 2 contact cooperation, the lower extreme of elasticity annular gasket 8 with go up the interior border contact cooperation of through-hole 141. The elastic ring-shaped gasket 8 has elasticity, and can reduce friction between the handle 2 and the top cover 14 when the handle 2 rotates. The elastic annular gasket 8 is made of plastic.

This embodiment still includes nylon cover 9, nylon cover 9 be in handle 2 with between the 11 borders of first through-hole, the side of going up of nylon cover 9 and the 2 lower extreme in close contact with of handle, the downside of nylon cover 9 and the upper end in close contact with on the 11 borders of first through-hole. Because the nylon sleeve 9 has elasticity, can firmly set up between handle 2 and first through-hole 11 border, increase the stability that handle 2 installed on base 1.

The cross section of the connecting rod 3 is square; the lower end of the positioning seat 4 is provided with a square jack 44 with the shape and the size matched with the upper part of the connecting rod 3, so that the connecting rod 3 can rotate along with the positioning seat 4 and the handle 2.

The present embodiment further includes a locking screw 10, a strip-shaped through hole 45 extending in a vertical direction is disposed in the positioning seat 4, the strip-shaped through hole 45 is located above the square insertion hole 44 and is communicated with the square insertion hole 44, and a hole diameter of the strip-shaped through hole 45 is smaller than a hole diameter of the square insertion hole 44; the handle 2 is provided with a screw hole 21, the rod part of the locking screw 10 penetrates through the strip-shaped through hole 45 and is inserted into the screw hole 21, the head part of the locking screw 10 is positioned in the square insertion hole 44, and the head part of the locking screw 10 and the screw hole 21 jointly lock the handle 2 on the handle mounting head 43.

The cross-sectional shape of the handle mounting head 43 is a regular hexagon; the shape of the screw hole is a regular hexagon matched with the handle mounting head 43.

After the base 1 is fixedly installed on a door, torque force is applied to the handle 2 by hands, the handle 2 rotates around the rotation axis of the handle, when the handle 2 rotates for a certain angle, the positioning seat 4 and the connecting rod 3 also rotate for a certain angle, when the positioning seat 4 rotates leftwards or rightwards, the cylindrical pin 5 contracts outwards under the elastic action of the elastic resetting mechanism 6, so that the cylindrical pin 5 is separated from the positioning groove 411 on the positioning wheel 41, after the outer wall of the cylindrical pin 5 continuously moves for a certain distance along the wheel surface of the positioning wheel 41, the cylindrical pin 5 extends inwards under the elastic action of the elastic resetting mechanism 6, the cylindrical pin 5 slides into another positioning groove 411, and one-time position switching of the positioning seat 4 is realized.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a wear-resisting door handle, includes base, handle and connecting rod, and the handle is rotatable to be installed on the base, and the connecting rod upper end is connected with the handle, and the axis of rotation of connecting rod coincides its characterized in that with the axis of rotation of handle: the positioning seat comprises a positioning wheel, a connecting part and a handle mounting head which are sequentially arranged from bottom to top, and a plurality of positioning grooves which are uniformly distributed along the circumferential direction are formed in the peripheral surface of the positioning wheel; the top surface of the base is provided with a first through hole, the connecting part of the positioning seat is positioned in the first through hole, the handle mounting head is exposed above the first through hole, and the positioning wheel is positioned in the inner cavity of the base; the inner cavity of the base is provided with at least one sliding channel, the sliding channels and the elastic reset mechanisms are the same in number and correspond to the cylindrical pins one by one, the inner ends of the sliding channels correspond to one of the positioning grooves, the elastic reset mechanisms are installed at the outer ends of the sliding channels, and the cylindrical pins are arranged in the sliding channels and are positioned between the positioning grooves and the elastic output ends of the elastic reset mechanisms; the handle is connected with the handle mounting head; the upper part of the connecting rod is fixedly arranged at the lower end of the positioning seat.

2. A wear resistant door handle as claimed in claim 1 wherein: the number of the cylindrical pins is two, the number of the elastic resetting mechanisms is two, the number of the sliding channels is two, the two sliding channels are oppositely arranged in the inner cavity of the base, and the corresponding cylindrical pins and the elastic resetting mechanisms are arranged in the corresponding sliding channels.

3. A wear resistant door handle as claimed in claim 1 wherein: the groove surface of the positioning groove is arc-shaped.

4. A wear resistant door handle as claimed in claim 1 or 2 wherein: the elastic reset mechanism comprises a reset spring and a positioning block, the inner side of the positioning block is arc-shaped, a positioning convex column is arranged on the outer side of the positioning block, the inner side of the positioning block is in close contact with the outer wall of the cylindrical pin, the inner end of the reset spring is sleeved on the positioning convex column, and the outer end of the reset spring is connected with or in close contact with the outer end of the sliding channel.

5. A wear resistant door handle as claimed in claim 1 or 2 wherein: the positioning seat is characterized by further comprising a limiting sleeve, the limiting sleeve is sleeved on the connecting portion of the positioning seat and located in the inner cavity of the base, at least one strip-shaped limiting groove is formed in the edge of the limiting sleeve and forms the sliding channel, the inner end of the strip-shaped limiting groove is communicated with the positioning groove, and the cylindrical pin and the elastic reset mechanism are located in the strip-shaped limiting groove.

6. A wear resistant door handle as claimed in claim 5 wherein: the base comprises a shell, a top cover and a bottom cover, and an accommodating cavity capable of accommodating the positioning seat and the limiting sleeve is formed in the shell; the top cover is fixedly arranged on the top of the shell, an upper through hole is formed in the top cover, the first through hole is formed in the top of the shell, and the edge of the first through hole penetrates through the upper through hole and is located on the outer side of the upper through hole; the handle mounting head is positioned outside the upper through hole; the bottom cover is fixedly arranged at the bottom of the shell, a lower through hole is formed in the bottom cover, and the connecting rod extends out of the outer side of the lower through hole.

7. The wear-resistant door handle according to claim 6, wherein:

the handle is arranged in the first through hole, and the handle is in contact fit with the elastic annular gasket;

still include the nylon cover, the nylon cover be in the handle with between the first through-hole border, the last side and the handle lower extreme in close contact with of nylon cover, the downside of nylon cover and the upper end in close contact with at first through-hole border.

8. A wear resistant door handle as claimed in claim 1 wherein: the cross section of the connecting rod is polygonal or elliptical; the lower end of the positioning seat is provided with a jack matched with the upper part of the connecting rod in shape and size.

9. A wear resistant door handle as claimed in claim 8 wherein: the positioning seat is internally provided with a strip-shaped through hole which runs up and down, the strip-shaped through hole is positioned above the jack and is communicated with the jack, and the aperture of the strip-shaped through hole is smaller than that of the jack; the handle is provided with a screw hole, the rod part of the locking screw penetrates through the strip-shaped through hole to be inserted into the screw hole, the head part of the locking screw is positioned in the jack, and the head part of the locking screw and the screw hole together lock the handle on the handle mounting head.

10. A wear resistant door handle as claimed in claim 9 wherein: the cross section of the handle mounting head is polygonal or elliptical; the shape and the size of the screw hole are matched with the handle mounting head.