A seat support

Abstract

The invention discloses a seat support, comprising a support leg, a support member and a bushing made of plastic material, wherein the support leg has a top and a bottom along its own height direction, a plug-in member is provided on the top side wall of the support leg, a groove is provided on the side wall of the plug-in member, the support member has a support foot extending outward, the support foot is provided with a first slot extending along its own length direction, and a through hole is provided on the support foot, a plug-in block is inserted in the through hole, an elastic member acts on the plug-in block, and a second slot is provided on the bushing, when the bushing is inserted into the first slot, the plug-in member can be inserted into the second slot, and the plug-in block is inserted into the groove under the action of the elastic member, and the bushing is compressed by the plug-in block to be clamped in the groove, so that the support leg, the support member and the bushing are all kept relatively fixed; when the plug-in block exits the groove, the elastic member is deformed and the support leg, the support member and the bushing can be separated from each other. The locking and unlocking of the plug-in member, the support foot and the bushing can be realized by pushing the slider, which is convenient and quick.

Description

Technical Field

[0001] The invention relates to the field of seats, and in particular to a seat bracket. Background Art

[0002] Traditional seats are mostly four-legged chairs, and the four legs are all fixed on the seat. This kind of structure is stable and reliable, but the packaging and logistics space is large, and the production cost is relatively high. As a result, chairs with detachable legs appeared on the market, but the detachable chairs themselves are not very stable due to their own structural characteristics. For example, the support component for seats with application number "201510537695.1" is installed and fixed between the support legs and the support seat by adding sheet metal parts, but the sheet metal parts are easy to deform during use, which poses a safety hazard. A detachable seat support frame with application number "201820535306.0" includes chair legs, support members, and connectors for connecting the chair legs and the support members, and the insertion is achieved by inserting the connectors into the chair legs and inserting the support members into the insertion slots on the connectors. However, the above structure still needs to be fixed with screws after insertion, and the user needs to squat and drive the screws for installation, which is time-consuming and laborious. In addition, there is a gap between the screws and the screw holes, and the support frame will shake after long-term use. Summary of the invention

[0003] The present invention overcomes the deficiencies existing in the above-mentioned prior art and provides a seat bracket, which has a groove on the connector on the supporting leg, and a through hole on the supporting foot with an insert block inserted in the through hole. After the bushing is inserted into the first slot on the supporting foot, the connector is inserted into the second slot on the bushing, and the bushing is pressed and clamped in the groove by the insert block, so that the seat bracket can lock the supporting leg, the supporting member bushing and the supporting member without screwing the screws, which saves time and effort, and will not cause shaking after long-term use.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A seat support comprises a support leg, a support member and a bushing of plastic material, wherein the support leg has a top end and a bottom end along its own height direction, a connector is provided on the top side wall of the support leg, a groove is provided on the side wall of the connector, the support member has a support foot extending outward, the support foot is provided with a first slot extending along its own length direction, and the support foot is provided with a through hole, an insert block is inserted in the through hole, an elastic member acts on the insert block, a second slot is provided on the bushing, when the bushing is inserted into the first slot, the connector can be inserted into the second slot, and the insert block is inserted into the groove under the action of the elastic member, the bushing is compressed by the insert block to be clamped in the groove, so that the support leg, support member and bushing are all kept relatively fixed; when the insert block withdraws from the groove, the elastic member is deformed and the support leg, support member and bushing can be separated from each other.

[0006] In a further solution, a third slot is provided on the side wall of the plug block, and a slider is provided on the support leg. The slider can slide relative to the support leg and be inserted into the third slot to drive the plug block to move along the depth direction of the through hole, forcing the plug block to exit the groove.

[0007] By pushing the slider to insert into the third slot on the plug-in block, the plug-in block can be forced to exit the groove, thereby unlocking the plug-in part, the support leg, and the bushing. When the slider is pushed to exit the third slot on the plug-in block, the plug-in block is inserted into the groove under the action of the elastic member, thereby locking the plug-in part, the support leg, and the bushing. The locking and unlocking of the plug-in part, the support leg, and the bushing can be achieved by simply pushing the slider, which is convenient and quick.

[0008] In a further solution, the slider has a head end and a tail end along its length direction, the head end of the slider is adjacent to the plug, the head end of the slider is provided with a reducing portion, and the thickness of the slider on the reducing portion gradually increases from the head end to the tail end of the locking piece.

[0009] Since the thickness of the slider on the reducing portion gradually increases from the head end to the tail end of the locking piece, the head end of the reducing portion of the slider is smaller and is convenient for extending into the third slot on the insert block, and the thickness of the reducing portion gradually increases from the head end to the tail end of the locking piece. As the slider continues to be inserted, the insert block will automatically exit the groove.

[0010] In a further solution, a fixed cover is provided on the outer wall of the support leg, the sliding block and the plug block are both located inside the fixed cover, the elastic member is a spring, one end of the spring abuts against the fixed cover, and the other end of the spring abuts against the plug block, and the spring is compressed when the plug block exits the groove.

[0011] In a further solution, the top surface of the slider abuts against the inner wall of the fixed cover. Since the top surface of the slider abuts against the inner wall of the fixed cover, the slider can be limited, thereby preventing the slider from tilting up and down during the sliding process.

[0012] In a further solution, a sliding groove and a positioning groove are provided on the fixed cover, the sliding groove extends along the length direction of the third slot, and the positioning groove extends along the width direction of the third slot. A push rod is provided on the slider, and the push rod passes through the sliding groove and is exposed outside the fixed cover. The width of the slider is smaller than the width of the third slot. When the push rod drives the slider to move to the connecting point between the sliding groove and the positioning groove, the slider is inserted into the third slot and the insert block exits the groove, and the push rod can slide along the positioning groove to keep the slider and the insert block relatively fixed.

[0013] Since the width of the slider is smaller than the width of the third slot, the slider can move along the width direction of the third slot after being inserted into the third slot. When the push rod drives the slider to move to the connection point between the sliding slot and the positioning slot, the slider is inserted into the third slot and the insert has been pulled out of the groove. Then, it is only necessary to push the push rod to slide along the positioning slot. When the push rod is limited by the wall of the positioning slot, it will no longer move along the length direction of the third slot, the slider will remain inserted into the third slot, and the jack will not be inserted into the groove. At this time, the user does not need to keep pressing the push rod, and can free both hands to pick up and assemble the support leg, support member and bushing.

[0014] In a further solution, the bushing has a head end and a tail end along its own length direction, and the bushing is divided into an insertion section and a rest section in sequence from the head end to the tail end. The diameter of the bushing in the rest section is larger than the diameter of the insertion section, and the second slot is provided on the tail end wall of the bushing. When the insertion section of the bushing is inserted into the first slot, the connector can be inserted into the second slot, so that the relative outer walls of the supporting leg and the supporting foot abut against the outer walls on both sides of the bushing and the rest section and clamp the rest section.

[0015] In a further solution, the support leg is a cylindrical structure, the end wall of the rear end of the bushing is an inwardly concave arc surface, and when the opposing outer walls of the support leg and the foot abut against the outer walls of the bushing and the abutting section on both sides and clamp the abutting section, the arc surface fits against the outer wall of the support leg. Since the end wall of the bushing is an inwardly concave arc surface, the support leg can fit against the outer wall of the support leg even if the support leg is a cylindrical structure.

[0016] In a further embodiment, the connector extends horizontally outward relative to the top side wall of the support leg, the support foot extends horizontally outward relative to the support member, the bushing can be horizontally inserted into the first slot, and the connector can be horizontally inserted into the second slot.

[0017] Since the connector and the first slot on the support leg extend horizontally, the parallelism is easy to control, making it more convenient to plug in. After plugging in, the top slot wall of the first slot presses on the connector due to gravity or pressure from the upper cushion, making it difficult for the support leg to shake relative to the connector.

[0018] The design starting point, concept and beneficial effects of the present invention using the above technical solution are:

[0019] 1. The gap between the connector and the first slot wall is further reduced by providing a bushing. And because the bushing is made of plastic, it can prevent the support leg and the connector from shaking and making noise after long-term use, thus achieving a silent effect.

[0020] 2. A through hole is provided on the support leg, an insert block is inserted into the through hole, and an elastic member is provided on the insert block. When the bushing is inserted into the first slot, the connector can be inserted into the second slot, and the insert block can be inserted into the groove under the action of the elastic member, so that the bushing is compressed by the insert block to be clamped in the groove. By pushing the slider into the third slot on the insert block, the insert block can be forced to withdraw from the groove, thereby unlocking the support leg, support member and bushing. When the slider is pushed out of the third slot on the insert block, the insert block is inserted into the groove under the action of the elastic member, thereby locking the connector, support leg and bushing. The locking and unlocking of the connector, support leg and bushing can be achieved by only pushing the slider, which is convenient and quick. The fixation of the connector, support leg and bushing can be achieved without screwing.

[0021] 3. Since the elastic member continuously acts on the plug, there is no need to worry about the plug falling out of the groove. At the same time, since the bushing is clamped in the groove to fill the gap between the plug and the groove, there will be no shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a seat with a seat support in a disassembled state;

[0023] Figure 2 It is a top view of the seat support;

[0024] Figure 3 for Figure 2 The cross-sectional view and partial enlarged view of AA in the figure;

[0025] Figure 4 is a schematic diagram of the structure of the supporting legs;

[0026] Figure 5 Schematic diagram of the structure of the bushing.

[0027] Figure 6 It is a schematic diagram of the structure of the seat support in a partially disassembled state;

[0028] Figure 7 It is a partial top view and partial enlarged view of the seat support in the locked state;

[0029] Figure 8 It is a partial top view and a partial enlarged view of the seat bracket in the unlocked state.

[0030] The figures are marked as follows: 1-support leg, 2-bushing, 3-support member, 4-connector, 5-insertion section, 6-rest section, 7-first slot, 8-second slot, 9-support foot, 10-equal diameter portion, 11-reduced diameter portion, 12-groove, 13-through hole, 14-insert block, 15-third slot, 16-spring, 17-slider, 18-reducing diameter portion, 19-sliding slot, 20-positioning slot, 21-push rod, 22-fixed cover. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0033] The specific implementation of the present invention is as follows:

[0034] Example: Figure 1-8 As shown, the present invention provides a detachable seat support, comprising a support leg 1, a bushing 2 and a support member 3. The support leg 1 and the support member 3 are both metal parts, and the bushing 2 is made of plastic.

[0035] like Figure 4 As shown, the support leg 1 has a top end and a bottom end along its height direction, and a plug-in component 4 extending horizontally outward is provided on the top side wall of the support leg 1. Figure 5 As shown, the bushing 2 has a head end and a tail end along its length direction. The bushing 2 is divided into an insertion section 5 and abutment section 6 in the direction from the head end to the tail end, and the diameter of the bushing 2 in the abutment section 6 is larger than the diameter of the insertion section 5. At the same time, the bushing 2 is also provided with a second slot 8 on the end wall of its tail end, and the second slot 8 extends along the length direction of the bushing 2. Figure 2-4As shown, the support member 3 has a support leg 9 extending horizontally outward, and the support leg 9 is provided with a first slot 7 extending along its length direction. Specifically, the support member 3 in this solution includes a first frame body and a second frame body connected crosswise, and both ends of the first frame body and the head and tail ends of the second frame body constitute the support leg 9. The insertion section 5 of the bushing 2 is horizontally inserted into the first slot 7 of the support leg 9, and the connector 4 is horizontally inserted into the second slot 8 on the bushing 2, and the relative outer walls of the support leg 1 and the support leg 9 abut against the outer walls of the bushing 2 and the abutment section 6 on both sides and clamp the abutment section 6.

[0036] The above-mentioned bracket structure adopts a plug-in connection method, which is more secure and will not deform compared to the sheet metal connection method. And because the connector 4 and the first slot 7 on the support leg 9 extend horizontally, the parallelism is easy to control, which is more convenient for plugging. After plugging, the top groove wall of the first slot 7 is pressed on the connector 4 due to gravity or the pressure of the upper seat cushion, and the support leg 9 is also difficult to shake relative to the connector 4. At the same time, the above-mentioned bracket structure further reduces the gap between the connector 4 and the groove wall of the first slot 7 by providing a bushing 2. And because the bushing 2 is made of plastic, it avoids shaking and making noise between the support leg 9 and the connector 4 after long-term use, thereby achieving a silent effect. Moreover, the diameter of the bushing 2 in the abutment section 6 is larger than the diameter of the insertion section 5. When the connector 4 is inserted into the second slot 8, the relative outer walls of the supporting leg 1 and the supporting foot 9 abut against the outer walls on both sides of the bushing 2 and the abutment section 6 and clamp the abutment section 6, so that there is no gap between the supporting foot 9 and the supporting leg 1, thereby avoiding direct contact between the supporting foot 9 and the supporting leg 1, which may cause noise after long-term use.

[0037] And in order to facilitate the insertion section 5 of the bushing 2 into the first slot 7 on the support leg 9. Figure 4 and Figure 6 As shown, in this solution, the insertion section 5 is divided into a diameter-reducing portion 11 and a constant diameter portion 10 along the direction from the head end to the tail end of the connecting section. The diameter of the insertion section 5 at the diameter-reducing portion 11 gradually decreases from the head end to the tail end, and the diameter of the insertion section 5 at the constant diameter portion 10 is the same as the tail end diameter of the diameter-reducing portion 11. Since the diameter of the insertion section 5 at the diameter-reducing portion 14 gradually decreases from the head end to the tail end, it is convenient for the insertion section 5 to be inserted into the first slot 7. The diameter of the constant diameter portion 10 is the same as the tail end diameter of the diameter-reducing portion 11, which can avoid the problem of shaking caused by excessive gap between the insertion section 5 and the first slot 7.

[0038] At the same time, in order to further eliminate the gap between the bushing 2 and the support leg 1. In this solution, the support leg 1 is a cylindrical structure, and the end wall of the bushing 2 is an inwardly concave arc surface. When the relative outer walls of the support leg 1 and the foot 9 are in contact with the outer walls of the bushing 2 and the abutment section 6 on both sides and the abutment section 6 is clamped, the arc surface fits with the outer wall of the support leg 1. Since the end wall of the bushing 2 is an inwardly concave arc surface, even if the support leg 1 is a cylindrical structure, it can fit with the outer wall of the support leg 1, which not only makes the structure more solid, but also makes the appearance more beautiful. Of course, if the support leg 1 is a quadrangular prism structure, the end wall of the bushing 2 can also be a flat plane.

[0039] In addition, if Figure 4 As shown, in this solution, when the opposing outer walls of the support leg 1 and the support foot 9 abut against the outer walls of the bushing 2 and the abutting section 6 and clamp the abutting section 6, the top surface of the support leg 1 is flush with the top surface of the abutting section 6 and the top surface of the support member 3. Since the top surface of the support leg 1 is flush with the top surface of the abutting section 6 and the top surface of the support member 3, the problem of unevenness of the seat cushion after subsequent installation on the bracket formed by the support leg 1 and the support foot 9 is avoided, and the installation of the seat cushion is convenient.

[0040] And in order to achieve the locking and unlocking of the positions among the connector 4, the bushing 2 and the support leg 9. Figure 4-8 As shown, in this solution, a groove 12 is provided on the side wall of the plug connector 4, and a through hole 13 is provided on the support leg 9, in which a plug block 14 is inserted, and an elastic member acts on the plug block 14. Specifically, the elastic member in this solution is a spring 16, and a fixed cover 22 is provided on the outer wall of the support leg 9, and the plug block 14 is partially exposed outside the support leg 9 and is located inside the fixed cover 22 and covered by the fixed cover 22. One end of the spring 16 abuts against the inner wall of the fixed cover 22, and the other end of the spring 16 abuts against the plug block 14.

[0041] At the same time, a third slot 15 is provided on the side wall of the plug block 14, and the third slot 15 is partially exposed outside the support leg 9. A slider 17 is also provided on the support leg 9, and the slider 17 can slide relative to the support leg 9 and be inserted into or withdrawn from the third slot 15 on the plug block 14. The slider 17 is also located in the fixed cover 22 and covered by the fixed cover 22. The slider 17 has a head end and a tail end along its own length direction, wherein the head end of the slider 17 is adjacent to the plug block 14. In order to prevent the slider 17 from tilting during the sliding process, the top surface of the slider 17 is against the inner wall of the fixed cover 22 to form a limit. And the head end of the slider 17 is provided with a reducing portion 18, and the thickness of the slider 17 on the reduced diameter portion 11 gradually increases from the head end to the tail end of the locking member.

[0042] When the connector 4, bushing 2 and support leg 9 need to be assembled, first slide the slider 17 so that the slider 17 is inserted into the third slot 15 of the plug block 14. Since the thickness of the slider 17 on the reducing portion 18 gradually increases from the head end to the tail end of the locking member, the slider 17 will force the plug block 14 to move in the depth direction of the through hole 13 during the insertion of the slider 17 into the third slot 15, so that the plug block 14 is completely withdrawn from the groove 12 on the connector 4 to complete the unlocking. The bushing 2 and the connector 4 can be freely inserted into the first slot 7 on the support leg 9 for assembly.

[0043] In order to facilitate the pushing of the slider 17, a sliding groove 19 and a positioning groove 20 are provided on the fixed cover 22. The sliding groove 19 extends along the length direction of the third slot 15, and a push rod 21 is provided on the slider 17. The push rod 21 passes through the sliding groove 19 and is exposed outside the fixed cover 22. The slider 17 can be inserted into or withdrawn from the third slot 15 by simply pushing the push rod 21. In this solution, the width of the slider 17 is smaller than the width of the third slot 15. The positioning groove 20 is also provided on the fixed cover 22. The positioning groove 20 extends along the width direction of the third slot 15, and when the push rod 21 drives the slider 17 to move to the connection between the sliding groove 19 and the positioning groove 20, the slider 17 has been inserted into the third slot 15 and the insert block 14 withdraws from the above-mentioned groove 12. Since the width of the middle slider 17 is smaller than the width of the third slot 15, the slider 17 can move along the width direction of the third slot 15 after being inserted into the third slot 15. When the push rod 21 drives the slider 17 to move to the connecting point of the sliding slot 19 and the positioning slot 20, the slider 17 is inserted into the third slot 15 and the insert block 14 has been withdrawn from the groove 12. Then, it is only necessary to push the push rod 21 to slide along the positioning slot 20. The push rod 21 is limited by the slot wall of the positioning slot 20 and will no longer move along the length direction of the third slot 15. The slider 17 will be inserted into the third slot 15 and the plug hole will not be inserted into the groove 12. At this time, the user does not need to press the push rod 21 all the time, and can free both hands to take and assemble the support leg 1, the support member 3 and the bushing 2.

[0044] At this time, since the insert block 14 moves a distance in the depth direction of the through hole 13, the spring 16 is in a compressed state.

[0045] After the assembly is completed, the user only needs to push the push rod 21 in the reverse direction to make the slider 17 withdraw from the third slot 15. At this time, after the restoring force of the spring 16 is inserted between the plug-in component 4, the bushing 2 and the support leg 9, the spring 16 acts on the plug-in block 14 to force the plug-in block 14 to press the bushing 2 to deform and squeeze the bushing 2 into the groove 12 on the side wall of the plug-in component 4, so that the plug-in block 14 can cooperate with the inner wall of the groove 12 to clamp the bushing 2, thereby realizing the locking of the plug-in component 4, the support leg 9 and the bushing 2. This structure can realize the locking and unlocking between the plug-in component 4, the support leg 9 and the bushing 2 without screwing the screws. And because the restoring force of the spring 16 will continue to act on the plug-in block 14, there is no need to worry about the plug-in block 14 coming out of the groove 12. At the same time, because the bushing 2 is clamped in the groove 12 to fill the gap between the plug-in block 14 and the groove 12, no shaking will occur.

[0046] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A seat support, characterized in that: The support leg comprises a support member and a bushing made of plastic material, wherein the support leg has a top end and a bottom end along its own height direction, a plug-in member is provided on the side wall of the top end of the support leg, a groove is provided on the side wall of the plug-in member, the support member has a support foot extending outward, the support foot is provided with a first slot extending along its own length direction, and the support foot is provided with a through hole, a plug-in block is inserted in the through hole, an elastic member acts on the plug-in block, a second slot is provided on the bushing, when the bushing is inserted into the first slot, the plug-in member can be inserted into the second slot, and the plug-in block is inserted into the groove under the action of the elastic member, the bushing is compressed by the plug-in block to be clamped in the groove, so that the support leg, the support member and the bushing are all kept relatively fixed; when the plug-in block withdraws from the groove, the elastic member is deformed and the support leg, the support member and the bushing can be separated from each other; A third slot is provided on the side wall of the insert block, and a slider is provided on the support leg. The slider can slide relative to the support leg and be inserted into the third slot and drive the insert block to move along the depth direction of the through hole, forcing the insert block to exit the groove; The slider has a head end and a tail end along its length direction. The head end of the slider is adjacent to the plug block. The head end of the slider is provided with a reducing portion. The thickness of the slider on the reducing portion gradually increases from the head end to the tail end of the locking piece.

2. The seat support according to claim 1, characterized in that: A fixed cover is provided on the outer wall of the support leg, the sliding block and the plug block are both located inside the fixed cover, the elastic member is a spring, one end of the spring abuts against the fixed cover, and the other end of the spring abuts against the plug block, and when the plug block exits the groove, the spring is compressed.

3. The seat support according to claim 2, characterized in that: The top end surface of the sliding block abuts against the inner wall of the fixing cover.

4. The seat support according to claim 2, characterized in that: The fixed cover is provided with a sliding groove and a positioning groove, the sliding groove extends along the length direction of the third slot, and the positioning groove extends along the width direction of the third slot. The slider is provided with a push rod, and the push rod passes through the sliding groove and is exposed outside the fixed cover. The width of the slider is smaller than the width of the third slot. When the push rod drives the slider to move to the connecting point between the sliding groove and the positioning groove, the slider is inserted into the third slot and the insert block exits the groove, and the push rod can slide along the positioning groove to keep the slider and the insert block relatively fixed.

5. The seat support according to claim 1, characterized in that: The bushing has a head end and a tail end along its length direction, and is divided into an insertion section and a rest section in sequence from the head end to the tail end. The diameter of the bushing at the rest section is larger than the diameter of the insertion section, and the second slot is provided on the tail end wall of the bushing. When the insertion section of the bushing is inserted into the first slot, the connector can be inserted into the second slot, so that the relative outer walls of the supporting leg and the supporting foot abut against the outer walls on both sides of the bushing and the rest section and clamp the rest section.

6. The seat support according to claim 5, characterized in that: The supporting leg is a cylindrical structure, and the tail end wall of the bushing is an inwardly concave arc surface. When the relative outer walls of the supporting leg and the supporting foot abut against the outer walls of the bushing and the abutting section on both sides and clamp the abutting section, the arc surface fits against the outer wall of the supporting leg.

7. The seat support according to claim 1, characterized in that: The connector extends horizontally outward relative to the top side wall of the support leg, the support leg extends horizontally outward relative to the support member, the bushing can be horizontally inserted into the first slot, and the connector can be horizontally inserted into the second slot.

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