KR20140006292U - Refractive stick to fixing direction - Google Patents

Abstract

The present invention relates to a refraction stick capable of fixing a direction, and includes a refracting stick body, wherein a desired refraction deformation of the stick body is located in a longitudinal section X of the stick body, and two When the neutral axis is the neutral axis y and the neutral axis z and the neutral axis z is perpendicular to the vertical plane X, the moment of inertia of the stick body with respect to the neutral axis z of any transverse section is smaller than the moment of inertia with respect to the neutral axis y. The use of a refraction stick that can fix the direction of this design makes it easier to clean the bottom of the furniture because the stick portion of the cleaning tool can easily bend in the desired direction.

Description

{REFRACTIVE STICK TO FIXING DIRECTION}

The present invention relates to a stick, and more particularly to a refraction stick capable of fixing a direction.

Since the space at the bottom of the furniture is small in daily indoor cleaning work, it is comparatively troublesome to clean it as a blind spot of cleaning. To this end, in the prior art, the deflectable portion is designed on the stick portion of the cleaning tool so that the user can bend and deform the deflectable portion of the stick by applying a certain downward pressure to the stick portion of the cleaning tool. The head portion of the cleaning tool is designed to be able to be pushed to the bottom of the furniture even when the user is standing by making the stick portion connected to the head portion of the tool close to the horizontal position.

However, in the prior art, since the deflectable portion of the stick portion is generally a solid or hollow circular stick, the deflectable portion can bend all the way in each direction, but the deflectable portion can be bent along the vertical plane It is convenient to put the cleaning tool head to the bottom of the furniture only when bent; If the pressure applied to the stick portion by the user is not directed downward along the vertical plane due to some deviation, the deflectable portion will bend in the other direction, so that a relatively large amount of manipulation experience and manipulation There is still a technical problem that is difficult to use because of skill.

The object of the present invention is to provide a refraction stick capable of fixing a direction in which a stick portion of a cleaning tool can be easily bent in a desired direction by overcoming the shortcomings of the prior art, do.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method for manufacturing a stick body, which comprises a stick body capable of refracting a directionally fixed refracting stick, Wherein the two neutral axes perpendicular to each other in the transverse plane of the stick body are a neutral axis y and a neutral axis z, and the neutral axis z is perpendicular to the longitudinal axis X; The inertia moment of the arbitrary cross section of the stick body with respect to the neutral axis z is smaller than the inertia moment with respect to the neutral axis y.

In the above technical solution, based on the relevant theory of the material dynamics, the resistance ability of the stick to the bending strain can be expressed by the bending stiffness, and the larger the bending stiffness under the action of the same external bending moment, the harder the bending of the stick; The refractive stiffness is expressed as E · J, where E is the modulus of elasticity, and J is the moment of inertia of the transverse section with respect to the neutral axis; Since the elastic modulus E is a material-related fixed value, the magnitude of the moment of inertia J of the transverse section relative to the neutral axis determines the magnitude of the refractive stiffness. Since the distribution of the neutral axis in the transverse section is different and the moment of inertia J of the cross section with respect to the neutral axis is related to the shape of the cross section and the distribution position of the neutral axis when the other cross section of the stick is on the other longitudinal section of the stick, In which the moment of inertia of the transverse section relative to one neutral axis (i.e., the neutral axis z) is made smaller than the moment of inertia of the transverse section relative to the other neutral axis (i.e., the neutral axis y) perpendicular thereto , When the bending moment corresponding to the neutral axis z acts on the stick, the bending stiffness of the stick is small, so that the stick can be relatively easily bent; When the bending moment corresponding to the neutral axis y acts on the stick, the stiffness of the stick is so high that the bending of the stick becomes relatively difficult, thereby improving the function of the cleaning tool for cleaning the bottom of the furniture.

In a preferred embodiment of the present invention, the cross-section of the stick body is of an " I "shape, and the stick body comprises a top plate, a bottom plate and a web plate, wherein the top plate and the bottom plate are disposed in parallel, And connected to a central portion between the upper plate and the lower plate; The longitudinal section perpendicular to the transverse section of the stick body is a longitudinal section X; Within any cross-section of the stick body, the neutral axis y is a neutral axis perpendicular to the flank, and the neutral axis z is a neutral axis parallel to the flank. Due to the dynamic nature of the I-beam, the moment of inertia of the cross-section with respect to the neutral axis y is considerably greater than the moment of inertia with respect to the neutral axis z, refraction in the longitudinal section parallel to the center of the & Since the stiffness is large but the refractive stiffness in the vertical plane perpendicular to the vertical plane is small, the object of direction refraction is achieved by more easily bending in the vertical plane perpendicular to the pan plate.

In one embodiment, the upper and lower ends of the upper and lower plates extend outwardly from the upper plate and the lower plate to form an upper plate direction stiffener and a lower plate direction stiffener, respectively. The reason why the upper plate directional stiffener and the lower plate stiffener are provided is to further increase the moment of inertia of the transverse section with respect to the neutral axis y, that is, to improve the bending stiffness in the longitudinal section parallel to the baffle, So as to make it more remarkable.

In one embodiment, a plurality of equal distance reinforcing sheets are provided along the longitudinal direction of the stick body, and the reinforcing sheet is parallel to the cross section of the stick body. The reinforcing sheet is engaged with an end surface of the stick body to improve the stability of the stick body refracting direction.

In one embodiment of the present invention, the hollow control rod is connected to the stick body, and one end of the stick body is inserted into the inner space of the control rod to form a stretchable joint. The stick body A retractable locking structure for fixing the extension and retraction of the main body is provided. The length of the stick body can be conveniently adjusted as needed when cleaning, for example, when the lower part of the furniture is not cleaned, the rod is shrunk and the cleaning tool stick part Improving the convenience of the cleaning operation by increasing the rigidity; When the bottom of the furniture is to be cleaned by bending the stick body, the stick body can be extended so that different refraction effects can be obtained according to the extension length.

In particular, in the above-described telescopic locking structure, a joint set is provided at an end portion of the control rod, an annular slot is provided on an outer wall of the joint set, and an annular pressing lock is provided in the annular slot; Wherein the locking unit comprises a connection of a pushing unit and a locking unit, wherein the locking unit has a major arc-shaped arcuate shape with a center and a diameter equal to the center and diameter of the annular slot, A locking head is installed; Wherein the pushing unit has an arc shape indicating a minor arc and an inner diameter smaller than an outer diameter of the annular slot, a position restricting projection is provided inside the pushing unit, and the two end portions of the pushing unit and the lock unit Each being interlocked and connected together; Wherein a locking hole is formed at one side of the annular slot of the joint set to engage with the locking head and is connected to the inner space of the locking hole set of the lock and formed with a position limiting groove engaging with the position limiting projection at the other side; A plurality of lock slots are provided on the stick body along the longitudinal direction of the stick body, and the lock head passes through the lock hole to enter the lock slot. Under the general operating principle of the telescopic locking structure, under normal circumstances, the push-lock is enclosed in an annular slot and the locking head is inserted in the locking slot on the body of the stick, And can not be stretched; When the stick body is to be extended or retracted, the pushing unit is pushed out of the lock slot by pressing the pushing unit. At this time, the stick body is stretchable in the control board, Wherein both ends of said locking unit are elastically clamped on said annular slot and also exhibit a tendency to move forward to return to its original position; When the stick body is expanded and retracted to the target position and then the pushing unit is released, the lock unit automatically returns to its original position and the lock head is inserted again into the new lock slot, thereby fixing the stick body to the target position of the fleet.

Further, in the above-described stretch locking structure, a joint set is provided at an end portion of the control rod, an outer wall of the joint set is provided with a mounting slot communicating with the inner space, and a lock button is installed in the mounting slot; Wherein the lock button is connected to a central portion of the lock button via a pin in a mounting slot, a lock head is installed at one end of the lock button, and a spring is installed at the other end; A plurality of locking slots distributed along the longitudinal direction of the stick body are provided on the stick body and elastic force generated by the spring against the locking button under general circumstances elastically supports the locking head to be inserted into the lock slot. In the operating principle of the telescopic locking structure, under normal circumstances, the locking head is inserted into the locking slot on the stick body, whereby the stick body is locked on the control board and can not be retracted; When the stick body is to be extended or retracted, the lock button is rotated about the pin by pressing one end corresponding to the spring of the lock button, and the lock head comes out of the lock slot. At this time, ; When the lock body is moved to the target position and then the lock button is released, the lock button is automatically returned to its original position by the spring action so that the lock head is inserted into the new lock slot again, thereby fixing the stick body on the target position .

As a temporary example, a left square space and a right square space formed by the upper plate, the lower plate, the upper plate, and the two adjacent reinforcing sheets are formed on the right and left sides of the front plate, Wherein the upper and lower ends of the reinforcing member are respectively connected to the upper plate and the lower plate to form a triangular reinforcing structure; One locking slot is provided in each right square space; Wherein one spacer in parallel with the reinforcing sheet is provided at one end in each right square space, and the lock slot is formed by being surrounded by the top plate, the bottom plate, the reinforcing sheet, and the spacer; A guide sheet parallel to the upper plate and the lower plate is provided between the reinforcing sheet and the spacer at the other end of each right square space, and the upper end of the guide sheet and the upper end of the spacer are parallel.

According to the present invention, the reinforcing member serves to further improve the directional refraction effect by further improving the refractive rigidity in a longitudinal section parallel to the center plate by forming a triangular reinforcing structure between the upper plate and the lower plate. Since the lock head is not necessarily overlapped with the lock slot when the pushing unit or the lock button is released when the stick body reaches the vicinity of the target position in the stretching and regulating process of the stick body, So that the lock head and the lock slot are overlapped with each other by pulling the stick body, and in the process of pulling as described above, the guide seat supports and guides the lock head, As shown in FIG.

In another preferred embodiment of the present invention, the cross-section of the stick body is a hollow rectangular shape.

In another preferred embodiment of the present invention, the stick body is made of plastic and the plastic is PA, PP or other denaturing material.

The present invention has the following advantageous effects over the prior art.

Since the inertia moments of the two neutral axes perpendicular to each other in the transverse section of the stick body are different in the refracting stick capable of fixing the direction of the present invention, when a bending moment corresponding to a relatively small moment of inertia acts on the stick body, Is relatively easy to bend, i.e. the rod achieves the purpose of direction refraction by relatively easily bending in the longitudinal section corresponding to the bending moment. When the longitudinal section X of the stick body is designed in a vertical plane after applying the refraction stick capable of fixing the direction of the present invention to the stick portion of the cleaning tool, if the downward pressure is applied to the stick portion of the cleaning tool at the time of use, The stick body is easily bent on the vertical plane so that it is considerably easier to clean the cleaning head of the cleaning tool by putting it at the bottom of the furniture without the user's abundant operation experience and manipulation skill.

1 is a structural view of one specific embodiment in the present utility model.
Fig. 2 is a partial structural view of Fig. 1. Fig.
Fig. 3 is a structural diagram of another concrete embodiment in the present utility model.
Figs. 4 and 5 are partial structural diagrams showing the stick body from two perspectives in Fig.
Fig. 6 is a cross-sectional view of the stick body in Fig. 3;
Figs. 7 and 8 are exploded views of the joint set portion in Fig. 3 in two views. Fig.
Fig. 9 is a structural view of the stick body in the refracted state in Fig. 3. Fig.
10 is a structural view of a third specific embodiment of the present invention.
11 is an exploded view of Fig.
Fig. 12 is a structural view when a refraction stick capable of fixing a direction shown in Fig. 10 is applied to a mop.
Fig. 13 is a structural diagram (sectional view of a seat body) of a fourth specific embodiment in the present utility model.

The present invention will be described in more detail with reference to the following embodiments and drawings, but the present invention is not limited to the embodiments.

Example 1

1 and 2, a refraction stick capable of fixing the direction of the present embodiment includes a deflectable stick body 1, and one end of the stick body 1 is connected to a fuselage 5 Part), and the other end is connected to the cleaning head of the cleaning tool.

The cross section of the stick body 1 is of an I-shape and the stick body 1 is composed of an upper plate 2, a lower plate 3 and a main plate 4, The lower plate 3 is installed in parallel and the upper plate 4 is connected to the middle between the upper plate 2 and the lower plate 3. In the stick body 1, the desired deformation of the stick body 1 is located in a longitudinal section X of the stick body 1, and the longitudinal section X is a vertical section perpendicular to the center plate 4. [ The two neutral axes perpendicular to each other in the cross-section of the stick body 1 are a neutral axis y and a neutral axis z, respectively, and the neutral axis y is a neutral axis parallel to the main plate 4, Respectively.

Since the cross-sectional surface of the stick body 1 is "I" -shaped, the moment of inertia of the cross-sectional surface relative to the neutral axis z is smaller than the moment of inertia of the neutral axis y, The bending stiffness is small and easily bent; The flexural rigidity of the stick body 1 is relatively large and the bending is comparatively difficult when the bending moment is applied in the longitudinal section Y (longitudinal section parallel to the main plate 4). With this method, it is possible to realize a function of deflecting the direction of the stick body 1, that is, a function of the stick body 1 which is particularly easy to bend in a specific direction, but is relatively difficult to bend in the other direction.

As shown in FIG. 1, the stick body 1 is fixedly connected to the control board 5 in the present embodiment. The stick body 1 was made of PA.

Example 2

3 to 9, the present embodiment is an improvement based on the first embodiment. Specifically, in the present embodiment, the stick body 1 is of an " I " Wherein the upper plate 2 and the lower plate 3 are arranged in parallel and the upper plate 2 and the lower plate 3 are arranged in parallel to each other, To the center of the frame. The upper and lower ends of the main plate 4 extend outwardly from the upper plate 2 and the lower plate 3 to extend in the range where the cross section of the stick body 1 is surrounded by one circle, And the lower plate directional stiffener 402 are respectively formed and the outline of the ends of the upper plate direction stiffener 401 and the lower plate stiffener 402 overlaps with the circle of the circle. The upper plate 2 and the lower plate 3 located on the right side of the upper plate 2 and the lower plate 3 are positioned relatively to the upper plate 2 and the lower plate 3 on the left side, In comparison, the center moves in parallel at regular intervals. The outline of the end of the upper plate 2 and the lower plate 3 on the left side of the front plate 4 overlaps with the outline of the circle.

3 to 6, a plurality of equal distance reinforcing sheets 6 are provided in the longitudinal direction of the stick body 1, the reinforcing sheet 6 has a circular shape, and the stick body 1, Lt; / RTI > A left square space 8 and a right square space 7 surrounded by the upper plate 2, the lower plate 3, the upper plate 4 and the two adjacent reinforcing sheets 6 are formed on both left and right sides of the front plate 4, The upper and lower ends of the stiffener 9 are connected to the upper plate 2 and the lower plate 3 in the left rectangular space 8, To form a triangular reinforced structure.

7 and 8, a hollow control board 5 is connected to the stick body 1, and one end of the stick body 1 is inserted into the internal space of the control board 5 A telescopic locking structure is provided between the control board 5 and the stick body 1 to lock the stick body 1. [ Specifically, the elastic locking structure is as follows.

A joint set (1) is provided at the end of the control rod (5), and an annular slot (131) is provided on the outer wall of the joint set (13), and an annular pressing lock Device 14 is installed. The pressing unit 14 is connected to a pushing unit 141 and a locking unit 142. The locking unit 142 has an arcuate shape indicating a friendliness and an inner diameter of which is larger than an inner diameter of the annular slot 131 A lock head 144 is installed inside the lock unit 142; Since the pressing unit 141 has an arc shape indicating a hot spring and has an inner diameter smaller than the outer diameter of the annular slot 131, the pressing unit 141 pushes out the annular slot 131, 141 and the annular slot 131 to provide a space for the pushing unit 141 to move and a position limiting protrusion 143 is provided inside the pushing unit 141. [ One notch 145 is provided at each end of the pushing unit 141 and two clamping connectors 147 are connected to the notch 145. One end And the projection 146 is provided with two clamping slots 148. The projection 146 is inserted into the notch 145 and the clamping connector 147 is inserted into the clamping slot 147 148, thereby clamping the pushing unit 141 and the lock unit 142 together. A lock hole 133 is formed at one side of the annular slot 131 of the joint set 13 to engage with the lock head 144. The lock hole 133 is formed in the inner space of the joint set 13, And a position restricting groove 132 engaging with the position restricting projection 143 is provided on the other side.

A plurality of locking slots 12 distributed along the longitudinal direction of the stick body 1 are provided in the stick body 1 and the locking head 144 is inserted into the locking slot 133 through the locking hole 133, (12). The lock slot (12) is installed in the right square space (7) of the stick body (1), and one lock slot (12) is installed in each right square space (7); One spacer 11 parallel to the reinforcing sheet 6 is provided at one end of each of the right rectangular spaces 7 and the locking slot 12 is formed in the upper plate 2, the lower plate 3, the reinforcing sheet 6 and the spacer 11; A guide sheet 10 parallel to the upper plate 2 and the lower plate 3 is provided between the reinforcing sheet 6 and the spacer 11 at the other end in each right square space 7 , The upper end of the guide sheet (10) and the upper end of the spacer (11) are parallel to each other.

3 to 8, in the present embodiment, the stick body 1 slides and moves within the fuselage 5, and the stick body 5 is provided on the fuselage 5 of the stick body 1 A part of the sticking surface 20 is cut out along the longitudinal direction from the right side of the stick body 1 to form a cut surface 20 corresponding to the joint set 13 and the fleet 5, And engages with the outer contour of the cross-sectional surface of the stick body (1).

In the present embodiment, the stick body 1 is made of PP.

Example 3

9 and 10, the present embodiment differs from the second embodiment in that a joint set 15 is provided at an end portion of the maneuver table 5 in a telescopic locking structure, A mounting slot 151 communicating with the inner space is provided, and a locking button 16 is installed in the mounting slot 151. [ The lock button 16 is connected to the mounting slot 151 through a pin 17. A lock head 161 is installed at one end of the lock button 16 and a spring 18 is provided at the other end of the lock button 16. [ Is installed; The elasticity generated by the spring 18 against the lock button 16 elastically supports the lock head 161 to be inserted into the lock slot 12 of the stick body 1 under normal circumstances. The central set of the springs 18 is on the pin 17, one of which is fixedly connected to the mounting slot 151 and the other end is free and acts on the locking button 16.

Other embodiments of the present embodiment are the same as those of the second embodiment.

As shown in FIG. 11, a structure in which a refraction stick body capable of fixing the direction of the present embodiment is applied to a mop is merely required to connect one end of the stick body 1 to the cleaning head 19, The body 1 and the cleaning head 19 can use a universal joint connection to adjust the longitudinal section X of the stick body 1 to a vertical plane, a horizontal plane, or the plane during use. For example, if the desired angle of refraction of the stick body 1 is in a horizontal plane when the gap between the back surface of the furniture and the wall is to be cleaned, the longitudinal axis X of the stick body 1 It can be overlapped with the horizontal plane.

Example 4

As shown in FIG. 13, in the present embodiment, the cross-section of the stick body 1 has a hollow rectangular shape. The moment of inertia of the section with respect to the neutral axis y must be larger than the moment of inertia with respect to the neutral axis z based on the sectional characteristics of the hollow rectangular shape. Relatively small and relatively easily bent; When the bending moment is applied in the longitudinal direction plane, the stiffness of the stick body 1 is relatively large, so that it is relatively difficult to bend. As a result, the object of unidirectional bending is achieved.

It is to be understood that the above description is a preferred embodiment of the present invention and that the embodiments of the present invention are not limited to the above description and that the present invention is not limited to the above- Any alterations, modifications, substitutions, combinations and simplifications that may occur to one skilled in the art are intended to be covered by the same level of protection and within the scope of the present invention.

Claims (10)

And wherein the two neutral axes perpendicular to each other in the transverse section of the stick body are a neutral axis (y) and a neutral axis (z), respectively, and the neutral axis z is perpendicular to the longitudinal section X;
Wherein the inertia moment of the arbitrary cross section of the stick body with respect to the neutral axis z is smaller than the inertia moment with respect to the neutral axis y. The method according to claim 1,
Wherein the cross section of the stick body is formed in an "I" shape, and the stick body includes a top plate, a bottom plate and a web plate, the top plate and the bottom plate being provided in parallel, To a central portion between;
Wherein the longitudinal axis of the stick body is perpendicular to the longitudinal axis X and the neutral axis y is a neutral axis perpendicular to the transverse plane within an arbitrary cross section of the stick body and the neutral axis z is a neutral axis parallel to the Refraction stick that can fix direction. 3. The method of claim 2,
Wherein the upper and lower ends of the upper and lower plates extend outwardly from the upper plate and the lower plate to form an upper plate stiffener and a lower plate stiffener, respectively. The method of claim 3,
Wherein a plurality of equal distance reinforcing sheets are provided along the longitudinal direction of the stick body, and the reinforcing sheet is parallel to the cross section of the stick body. 5. The method of claim 4,
The stick body is connected to the hollow control board, and one end of the stick body is inserted into the internal space of the control board to form a stretchable joint. The stick body is stretched and fixed between the control board and the stick body And a telescopic locking structure is provided on the outer circumferential surface. 6. The method of claim 5,
In the elastic locking structure,
A joint set is provided at an end of the control rod, an annular slot is provided on an outer wall of the joint set, and an annular pressing lock is installed in the annular slot; Wherein the lock unit comprises a connection between a pushing unit and a lock unit, wherein the lock unit is arcuate in shape of a major arc and has the same diameter as the center of the annular slot, Installed; Wherein the pushing unit has an arc shape indicating a minor arc and an inner diameter smaller than an outer diameter of the annular slot, a position restricting projection is provided inside the pushing unit, and the two end portions of the pushing unit and the lock unit Each being interlocked and connected together;
Wherein a locking hole is formed at one side of the annular slot of the joint set to engage with the locking head and is connected to the inner space of the locking hole set of the lock and formed with a position limiting groove engaging with the position limiting projection at the other side;
Wherein a plurality of lock slots are provided on the stick body along the longitudinal direction of the stick body, and the lock head passes through the lock hole to enter the lock slot. 6. The method of claim 5,
In the elastic locking structure,
A joint set is provided at an end portion of the control rod, an outer wall of the joint set is provided with a mounting slot communicating with the inner space, and a lock button is installed in the mounting slot;
Wherein the lock button is connected to a central portion of the lock button via a pin in a mounting slot, a lock head is installed at one end of the lock button, and a spring is installed at the other end;
Wherein a plurality of locking slots distributed along the longitudinal direction of the stick body are provided on the stick body and elastic force generated by the spring against the locking button elastically supports the locking head to be inserted into the lock slot Refraction stick that can be fixed. 8. The method according to claim 6 or 7,
A left square space and a left rectangle space formed by the upper plate, the lower plate, the upper plate, and two adjacent reinforcing sheets are formed on the left and right sides of the front plate, respectively, And upper and lower ends of the reinforcing member are respectively connected to the upper plate and the lower plate to form a triangular reinforcing structure;
One locking slot is provided in each right square space;
Wherein one spacer in parallel with the reinforcing sheet is provided at one end in each right square space, and the lock slot is formed by being surrounded by the top plate, the bottom plate, the reinforcing sheet, and the spacer;
Wherein a guide sheet parallel to the upper plate and the lower plate is provided between the reinforcing sheet and the spacer at the other end in each of the right square spaces and the upper end of the guide sheet and the upper end of the spacer are parallel to each other Refraction stick that can be fixed. The method according to claim 1,
Wherein the cross section of the stick body is a hollow rectangular shape. The method according to claim 1,
Characterized in that the stick body is made of plastic and the plastic is PA, PP or other denaturing material.

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