CN219932650U - Adjustable plate connecting fastener - Google Patents

Abstract

The utility model relates to the field of furniture connecting pieces, in particular to an adjustable plate connecting fastener which comprises an expansion nut, a pull rod and an embedded sleeve; the expansion nut comprises a cutting sleeve and an expansion body, the expansion body is nested in the cutting sleeve, and the cutting sleeve is provided with a cavity for the expansion body to slide; the expansion body is provided with a threaded hole matched with the pull rod, expansion gaps are formed in the side walls of the clamping sleeve and the expansion body, and the pull rod is connected with the embedded sleeve and the expansion body. The expansion nut provided by the utility model consists of the cutting sleeve and the expansion body, and the cavity for sliding the expansion body is arranged in the cutting sleeve, so that after two furniture boards are connected under the condition of inaccurate hole positions, the positions of the boards can be adjusted in a knocking way, the problem of dislocation of the furniture boards is avoided, smooth assembly of furniture is ensured, and the aesthetic degree of the overall appearance of the furniture is improved.

Description

Adjustable plate connecting fastener

Technical Field

The utility model relates to the field of furniture connecting pieces, in particular to an adjustable plate connecting fastener.

Background

Along with the increasing popularity of modern house ornamentation style, assembled furniture transportation is convenient, and the installation is simple, receives the favor of more and more families, is equipped with the connecting piece between the panel of assembled furniture, and the connecting piece is various, and the common eccentric bolt that has and stealthy fastener has solved the connection problem between the panel, makes ordinary consumer assemble furniture by oneself according to the drawing.

However, the existing connecting piece has a problem in the use process, because the punching of the plates is inaccurate, after the two plates are connected, dislocation occurs between the plates, the integral attractive effect of furniture is affected, and even the assembly of the furniture cannot be completed when serious.

Therefore, a technical scheme is needed at present to solve the technical problems that after two plates are assembled through a connecting piece, the plates are misplaced possibly due to inaccurate hole positions, the overall attractive effect of furniture is affected, and even the assembly cannot be completed.

Disclosure of Invention

The utility model aims at: the technical problems that after two plates are assembled through a connecting piece in the prior art, the plate misplacement possibly occurs due to inaccurate hole positions, the overall attractive effect of furniture is affected, and even the assembly cannot be completed are solved.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

an adjustable plate connecting fastener comprises an expansion nut, a pull rod and an embedded sleeve; the expansion nut comprises a cutting sleeve and an expansion body, the expansion body is nested in the cutting sleeve, and the cutting sleeve is provided with a cavity for the expansion body to slide; the expansion body is provided with a threaded hole matched with the pull rod, expansion gaps are formed in the side walls of the clamping sleeve and the expansion body, and the pull rod is connected with the embedded sleeve and the expansion body.

The utility model relates to an invisible connecting fastener, which comprises the following steps of S1: the expansion body is arranged in the clamping sleeve, and the clamping sleeve is knocked into the mounting hole on the first plate; s2: screwing the embedded sleeve into an assembly hole of the second plate; s3: screwing the pull rod into the expansion body, aligning the embedded sleeve on the second plate with the pull rod, knocking the second plate, and embedding the pull rod into the embedded sleeve; s4: observing or measuring whether the side spacing between the first plate and the second plate meets the assembly requirement; s5: knocking the side part of the second plate to enable the expansion body connected with the first plate to slide in the cavity until the spacing between the side parts of the first plate and the second plate meets the assembly requirement; because the expansion nut comprises the cutting sleeve and the expansion body, and the cavity for sliding the expansion body is arranged in the cutting sleeve, under the condition that the hole site is inaccurate, the positions of the two furniture plates can be adjusted in a knocking mode after the two furniture plates are connected, so that the problem of dislocation of the furniture plates is avoided, smooth assembly of furniture is ensured, and the attractive appearance of the whole furniture is improved.

As a preferable scheme of the utility model, the embedded sleeve comprises a cylinder body, a plurality of clamping pieces are arranged at the end part of the cylinder body, and clamping claws are arranged at the end parts of the clamping pieces. The clamping pieces are all close to the axis of the cylinder, so that after the pull rod is installed in the cylinder, the clamping pieces and the clamping jaws can be clamped on the pull rod, and the relative fixation of the embedded sleeve and the pull rod is realized.

As a preferable scheme of the utility model, one end of the cylinder body, which is far away from the clamping piece, is provided with a limiting notch. The auxiliary tool is convenient to use for clamping the barrel, and the auxiliary tool and the barrel are convenient to assemble on the electric drill, so that the barrel is convenient to install in the plate hole through the electric drill.

As a preferable scheme of the utility model, the pull rod comprises a pull rod body, one end of the pull rod body is provided with a screw thread section, the other end of the pull rod body is provided with a limiting table, a limiting groove is arranged between the limiting table and the pull rod body, the limiting groove comprises a conical section and a cylindrical section, the conical section is connected with the pull rod body, and the cylindrical section is connected with the limiting table. The pull rod body is connected with the expansion nut through the screw thread section, after the embedded sleeve is filled, the clamping piece is clamped on the conical section, the clamping jaw is abutted on the cylindrical section, and the pull rod is difficult to slide out after entering the embedded sleeve due to the limiting effect of the limiting table, so that the connection between the pull rod and the embedded sleeve is stable.

As a preferable scheme of the utility model, the limiting table is in a round table shape, and the small end of the limiting table faces the pull rod. In the prior art, the limit table is generally in a column shape, after the pull rod enters the plate hole, the claw on the embedded sleeve is abutted to the joint of the limit table and the column section, but when the depth of the plate hole is too deep, the embedded sleeve is buried too deeply, the pull rod can only penetrate into the plate hole to a certain depth, so that the claw of the embedded sleeve is clamped on the limit table after the pull rod enters the plate hole, the clamping piece cannot fully act on the cone section, the claw acts on the limit table, the pull rod is easily slipped out of the embedded sleeve when being stressed, and therefore, the situation that furniture plates are unstable is caused.

As a preferred embodiment of the present utility model, an annular step is provided between the screw thread section and the tie rod body. The screw thread section is convenient to connect with the expansion body, and meanwhile, the outer diameter of the screw thread section is smaller than that of the pull rod body, so that an annular step is formed between the screw thread section and the pull rod body, the annular step plays a limiting role on the pull rod body, and the phenomenon that the expansion body is damaged due to excessive screwing in the process of screwing the screw thread section into the expansion body is avoided.

As a preferable scheme of the utility model, the expansion body is provided with a threaded hole matched with the pull rod, and the clamping sleeve and the side wall of the expansion body are both provided with expansion gaps. After the screw thread section of the pull rod is screwed into the threaded hole of the expansion body, the expansion body expands from the expansion joint at the side part of the expansion body, so that the clamping sleeve expands from the expansion joint, and the clamping sleeve is fixed in the plate hole.

As a preferable scheme of the utility model, one end of the cutting sleeve connecting plate is provided with a guide conical surface. Make the cutting ferrule embed the mounting hole of panel more easily, make things convenient for the cutting ferrule to install on panel, it is simpler and more convenient to operate

As a preferable scheme of the utility model, the inner wall of one end of the clamping sleeve, which is close to the pull rod, is provided with a limiting edge, and the expansion body is provided with a limiting step, and the limiting edge is abutted with the limiting step and used for limiting the expansion body in the clamping sleeve. The expansion body is fixed in the clamping sleeve, and after the pull rod is connected with the expansion body, the pull rod is relatively fixed with the connected plate.

As a preferable scheme of the utility model, a limit clamping groove is arranged on the inner wall of the cavity, a boss matched with the limit clamping groove is arranged at one end of the expansion body, which is far away from the limit step, and the width of the boss is smaller than that of the limit clamping groove. The spacing draw-in groove link up the cutting ferrule and keep away from the one end of spacing limit, and boss nestification sets up in spacing draw-in groove, because the width of spacing draw-in groove is wider than the boss, consequently the boss can slide in spacing draw-in groove to realized the position control of inflation body in the cutting ferrule, and after the cutting ferrule is loaded into the panel hole, the cutting ferrule is with inflation body restriction in the panel hole, and the spacing limit of cutting ferrule upper end compresses tightly inflation body upper end, and the spacing draw-in groove diapire of cutting ferrule inner wall compresses tightly at the boss up end, thereby makes inflation body lower extreme compressed tightly by the cutting ferrule, thereby makes inflation body installation more stable in the panel downthehole.

As a preferable scheme of the utility model, the middle part of the limiting clamping groove is provided with a positioning edge, and the middle part of the boss is provided with a positioning groove matched with the positioning edge. The positioning ribs have a preliminary positioning function on the expansion body, so that the expansion body is arranged in the middle of the cutting sleeve after being mounted in the cutting sleeve, and the alignment of the plate is realized without adjusting the position of the expansion body under the condition that the hole position of the plate is accurate.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the expansion nut provided by the utility model consists of the cutting sleeve and the expansion body, and the cavity for sliding the expansion body is arranged in the cutting sleeve, so that after two furniture boards are connected under the condition of inaccurate hole positions, the positions of the boards can be adjusted in a knocking way, the problem of dislocation of the furniture boards is avoided, smooth assembly of furniture is ensured, and the aesthetic degree of the overall appearance of the furniture is improved.

Drawings

FIG. 1 is a diagram of the connection of the components of an adjustable panel connection fastener of the present utility model;

FIG. 2 is a schematic view of the construction of the expansion nut of the present utility model;

FIG. 3 is a schematic view of the ferrule of the present utility model;

FIG. 4 is a schematic view of the structure of the expansion body according to the present utility model;

FIG. 5 is a schematic view of the structure of the tie rod of the present utility model;

FIG. 6 is a schematic structural view of the embedded sleeve according to the present utility model;

FIG. 7 is a view showing the use of an adjustable panel connecting fastener according to the present utility model;

the marks in the figure: the novel steel plate comprises the following components of a 1-embedded nut, a 11-clamping sleeve, a 111-cavity, a 112-limit edge, a 113-limit clamping groove, a 114-locating edge, a 115-guide conical surface, a 116-thread, a 12-expansion body, a 121-threaded hole, a 122-expansion joint, a 123-limit step, a 124-boss, a 125-locating groove, a 2-pull rod, a 21-pull rod, a 211-limit groove, a 2111-conical section, a 2112-cylindrical section, a 212-annular step, a 22-threaded section, a 23-limit table, a 3-embedded sleeve, a 31-cylinder, a 311-limit notch, a 32-clamping piece, a 33-clamping jaw, a 4-first plate and a 5-second plate.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the adjustable plate connecting fastener of the embodiment comprises an expansion nut 1, a pull rod 2 and an embedded sleeve 3; the expansion nut 1 comprises a cutting sleeve 11 and an expansion body 12, wherein the expansion body 12 is nested in the cutting sleeve 11, and the cutting sleeve 11 is provided with a cavity 111 for the expansion body 12 to slide; the pull rod 2 is used for connecting the embedded sleeve 3 and the expansion body 12, wherein the expansion body 12 and the clamping sleeve 11 are plastic structural members and are manufactured in a 3D printing mode, the pull rod 2 and the embedded sleeve 3 are metal structural members, the pull rod 2 is molded by a die, and the embedded sleeve 3 is manufactured by a sheet metal process.

When the embedded type furniture board is used, the expansion nut 1 is embedded in the furniture board, the pull rod 2 is arranged on the expansion nut 1, the embedded sleeve 3 is embedded in another furniture board, and finally the pull rod 2 is connected with the embedded sleeve 3; because the expansion nut 1 comprises the cutting sleeve 11 and the expansion body 12, the cavity 111 for sliding the expansion body 12 is arranged in the cutting sleeve 11, so that after two furniture plates are connected under the condition of inaccurate hole positions, the positions of the plates can be adjusted in a knocking mode, the problem of dislocation of the furniture plates is avoided, smooth assembly of furniture is ensured, and the attractive appearance of the whole furniture is improved.

Specifically, the embedded sleeve 3 includes a cylinder 31, in order to increase the stability of the cylinder 31 in the plate, a thread 116 is provided on the outer wall of the cylinder 31, a plurality of clamping pieces 32 are provided at the end of the cylinder 31, a claw 33 is provided at the end of the clamping piece 32, the clamping pieces 32 are all close to the axis of the cylinder 31, so that after the pull rod 2 is installed into the cylinder 31, the clamping pieces 32 and the claw 33 can be clamped on the pull rod 2, and the relative fixation of the embedded sleeve 3 and the pull rod 2 is realized; more specifically, the number of the clamping pieces 32 is four, all the clamping pieces 32 are uniformly arranged around the cylinder 31, the number of the clamping pieces 32 is increased, and the relative stability of the embedded sleeve 3 and the pull rod 2 is improved; further, the barrel 31 is provided with a limit notch 311 at one end far away from the clamping piece 32, so that the barrel 31 is clamped by using an auxiliary tool conveniently, and the auxiliary tool and the barrel 31 are assembled on an electric drill conveniently, so that the barrel 31 is installed in a plate hole conveniently by the electric drill.

Specifically, the pull rod 2 includes a pull rod body 21, one end of the pull rod body 21 is provided with a threaded section 22, the other end of the pull rod body is provided with a limiting table 23, a limiting groove 211 is formed between the limiting table 23 and the pull rod body 21, the limiting groove 211 includes a conical section 2111 and a cylindrical section 2112, the conical section 2111 is connected with the pull rod body 21, the cylindrical section 2112 is connected with the limiting table 23, the pull rod body 21 is connected with the expansion nut 1 through the threaded section 22, after the pull rod body 21 is installed into the embedded sleeve 3, the clamping piece 32 is clamped on the conical section 2111, the clamping jaw 33 is abutted on the cylindrical section 2112, and due to the limiting effect of the limiting table 23, the pull rod 2 is difficult to slide out after entering the embedded sleeve 3, so that the connection between the pull rod 2 and the embedded sleeve 3 is stable; further, the outer diameter of the screw thread section 22 is smaller than the outer diameter of the pull rod body 21, so that an annular step 212 is formed between the screw thread section 22 and the pull rod body 21, the annular step 212 plays a limiting role on the pull rod body 21, and the phenomenon that the expansion body 12 is damaged due to excessive screwing in the process of screwing the screw thread section 22 into the expansion body 12 is avoided.

Specifically, the expansion body 12 is provided with a threaded hole 121 adapted to the pull rod 2, the side walls of the clamping sleeve 11 and the expansion body 12 are respectively provided with an expansion joint 122, after the threaded section 22 of the pull rod 2 is screwed into the threaded hole 121 of the expansion body 12, the expansion body 12 expands from the expansion joint 122 at the side part of the expansion body, so that the clamping sleeve 12 expands from the expansion joint 122, and the clamping sleeve 11 is fixed in a plate hole; the inner wall of one end of the clamping sleeve 11, which is close to the pull rod 2, is provided with a limiting step 123, the limiting step 123 is abutted against the limiting step 112, and the limiting step 123 is used for limiting the expansion body 12 in the clamping sleeve 11, so that the expansion body 12 is fixed in the clamping sleeve 11, and after the pull rod 2 is connected with the expansion body 12, the pull rod 2 is relatively fixed with a connected plate; furthermore, one end of the cutting sleeve 11 connected with the plate is provided with a guide conical surface 115, so that the cutting sleeve 11 is easier to be embedded into a mounting hole of the plate, the cutting sleeve 11 is convenient to mount on the plate, and the operation is simpler and more convenient; further, the outer wall of the clamping sleeve 11 is provided with threads 116, so that the clamping sleeve 11 is stably mounted in the plate.

Example 2

As shown in fig. 5, the difference between this embodiment and embodiment 1 is that the limiting table 23 is formed in a circular table shape, and the small end of the limiting table 23 is disposed toward the pull rod 2.

In the prior art, after the pull rod 2 enters the plate hole, the claw 33 on the embedded sleeve 3 is abutted against the joint of the limit table 23 and the cylindrical section 2112, but when the depth of the plate hole is too deep, the embedded sleeve 3 is embedded too deeply, however, the pull rod 2 can only penetrate into the plate hole to a certain depth, so that the claw 33 of the embedded sleeve 3 clamps on the limit table 23 after the pull rod 2 enters the plate hole, the clamping piece 32 cannot fully act on the conical section 2111, the claw 33 acts on the limit table 23, the pull rod 2 is easily slipped out of the embedded sleeve 3 when being stressed, and therefore, the situation of unstable furniture plate connection occurs.

Example 3

As shown in fig. 2, 3 and 4, in this embodiment, the difference from embodiment 1 is that a limiting slot 113 is provided on the inner wall of the cavity 111, a boss 124 that is matched with the limiting slot 113 is provided on an end of the expansion body 12 away from the limiting step 123, and the width of the boss 124 is smaller than the width of the limiting slot 113.

In this embodiment, the limit clamping groove 113 is penetrated through the end of the clamping sleeve 11 away from the limit edge 112, the boss 124 is nested in the limit clamping groove 113, and because the width of the limit clamping groove 113 is wider than that of the boss 124, the boss 124 can slide in the limit clamping groove 113, so that the position adjustment of the expansion body 12 in the clamping sleeve 11 is realized, after the clamping sleeve 11 is installed in a plate hole, the expansion body 12 is limited in the plate hole by the clamping sleeve 11, the limit edge 112 at the upper end of the clamping sleeve 11 compresses the upper end of the expansion body 11, and the bottom wall of the limit clamping groove 113 at the inner wall of the clamping sleeve 11 is compressed on the upper end surface of the boss 124, so that the lower end of the expansion body 12 is compressed by the clamping sleeve 11, and the expansion body 12 is installed in the plate hole more stably.

Further, the middle part of the limiting clamping groove 113 is provided with a positioning edge 114, the middle part of the boss 124 is provided with a positioning groove 113 matched with the positioning edge 114, the positioning edge 114 has a preliminary positioning function on the expansion body 12, so that the expansion body 12 is arranged in the middle part of the clamping sleeve 11 after being mounted in the clamping sleeve 11, and the alignment of the plate is realized without adjusting the position of the expansion body 12 under the condition that the hole position of the plate is accurate.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. An adjustable plate connecting fastener is characterized by comprising an expansion nut (1), a pull rod (2) and an embedded sleeve (3); the expansion nut (1) comprises a cutting sleeve (11) and an expansion body (12), wherein the expansion body (12) is nested in the cutting sleeve (11), and the cutting sleeve (11) is provided with a cavity (111) for the expansion body (12) to slide; the expansion body (12) is provided with a threaded hole (121) matched with the pull rod (2), expansion joints (122) are formed in the side walls of the clamping sleeve (11) and the expansion body (12), and the pull rod (2) is connected with the embedded sleeve (3) and the expansion body (12).

2. The adjustable plate connecting fastener according to claim 1, wherein the embedded sleeve (3) comprises a cylinder body (31), a plurality of clamping pieces (32) are arranged at the end part of the cylinder body (31), and clamping claws (33) are arranged at the end part of the clamping pieces (32).

3. The adjustable plate connecting fastener according to claim 2, wherein a limiting notch (311) is arranged at one end of the cylinder (31) far away from the clamping piece (32).

4. The adjustable plate connecting fastener according to claim 1, wherein the pull rod (2) comprises a pull rod body (21), one end of the pull rod body (21) is provided with a screw thread section (22), the other end of the pull rod body is provided with a limiting table (23), a limiting groove (211) is formed between the limiting table (23) and the pull rod body (21), the limiting groove (211) comprises a conical section (2111) and a cylindrical section (2112), the conical section (2111) is connected with the pull rod body (21), and the cylindrical section (2112) is connected with the limiting table (23).

5. The adjustable panel connection fastener according to claim 4, wherein the limit table (23) is provided in a truncated cone shape, and a small end of the limit table (23) is provided toward the pull rod (2).

6. The adjustable panel connection fastener according to claim 4, characterized in that an annular step (212) is provided between the threaded section (22) and the tie rod body (21).

7. The adjustable panel connection fastener according to claim 1, wherein one end of the ferrule (11) connected to the panel is provided with a guiding cone (115).

8. The adjustable plate connecting fastener according to any one of claims 1-7, wherein a limiting edge (112) is arranged on an inner wall of one end of the clamping sleeve (11) close to the pull rod (2), the expansion body (12) is provided with a limiting step (123), and the limiting edge (112) is abutted with the limiting step (123) and used for limiting the expansion body (12) in the clamping sleeve (11).

9. The adjustable plate connecting fastener according to claim 8, wherein a limiting clamping groove (113) is formed in the inner wall of the cavity (111), a boss (124) matched with the limiting clamping groove (113) is formed at one end, away from the limiting step (123), of the expansion body (12), and the width of the boss (124) is smaller than that of the limiting clamping groove (113).

10. The adjustable board connecting fastener according to claim 9, wherein a positioning rib (114) is provided in the middle of the limiting slot (113), and a positioning groove (125) matched with the positioning rib (114) is provided in the middle of the boss (124).