Auxiliary positioning device for punching of steel chair legs of office chair

Abstract

The utility model discloses an auxiliary positioning device for punching a steel chair leg of an office chair, and relates to the field of office chair processing. The auxiliary positioning device for punching of the steel chair legs of the office chair comprises a positioning base, a supporting seat and a supporting strip are fixedly installed above the positioning base, the side face of the supporting seat is fixedly connected with the supporting strip, and a steel chair leg frame is placed above the supporting seat and the supporting strip; a positioning strip is arranged above the steel chair leg frame, a plurality of extrusion blocks are arranged below the positioning strip in a sliding manner, and the plurality of extrusion blocks are connected with a movable positioning mechanism. According to the auxiliary positioning device for punching of the steel chair legs of the office chair, the movable positioning mechanism is used for driving the multiple extrusion blocks to move to the position above the steel chair leg frame and driving the multiple extrusion blocks to move downwards until the multiple extrusion blocks conduct multi-point extrusion fixing on the steel chair leg frame, and therefore the steel chair legs can be conveniently punched; therefore, the steel chair leg frame cannot move in the punching process above the supporting seat and the supporting strips.

Description

Technical Field

[0001] The utility model relates to the technical field of office chair processing, in particular to a hole punching auxiliary positioning device for a steel chair leg of an office chair. Background Art

[0002] Office chairs refer to various chairs equipped for the convenience of work in daily work and social activities. Although they have various appearances, the most common office chairs are still the conventional office chairs consisting of a bottom support frame, a top seat plate and a backrest.

[0003] The support frame of an office chair is mostly composed of support legs on both sides and a connecting frame in the middle. The support frames on both sides are generally fixed to the connecting frame by bolts, so it is necessary to punch holes on the outer sides of the support legs. Most of the existing auxiliary positioning devices use screws and nut blocks to squeeze and fix the support legs, and the shapes of the support legs are generally very different, which makes it difficult for the nut blocks to accurately fix the support legs. Therefore, the present application proposes an auxiliary positioning device for punching holes in steel legs of an office chair. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an auxiliary positioning device for punching holes in the steel legs of an office chair, which solves the problem that most of the existing auxiliary positioning devices use a screw rod and a nut block to squeeze and fix the supporting legs, while the shapes of the supporting legs are generally very different, making it difficult for the nut block to accurately fix the supporting legs.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an auxiliary positioning device for punching holes in steel chair legs of an office chair, comprising a positioning base, a support seat and a support bar are fixedly installed above the positioning base, the side of the support seat is fixedly connected to the support bar, and a steel chair leg frame is placed above the support seat and the support bar;

[0006] A positioning strip is arranged above the steel chair leg frame, and a plurality of extrusion blocks are slidably arranged below the positioning strip. The plurality of extrusion blocks are connected with a movable positioning mechanism, and the movable positioning mechanism can drive the plurality of extrusion blocks to perform multi-point extrusion and fixation on the steel chair leg frame.

[0007] Preferably, a support block is fixedly mounted above the support seat, and an end of the positioning strip is fixedly mounted on a side surface of the support block.

[0008] Preferably, the mobile positioning mechanism comprises:

[0009] A moving groove is provided inside the positioning strip;

[0010] The moving block is slidably arranged on the inner wall of the moving groove, and the extrusion block is arranged below the moving block.

[0011] Preferably, the cross-sections of the moving groove and the moving block are both arranged in a cross shape.

[0012] Preferably, a screw rod is threadedly connected to the inner wall of the moving block, and the bottom end of the screw rod extends outward and is fixedly connected to the extrusion block.

[0013] Preferably, the top end of the screw rod extends outward and is fixedly connected with a knob.

[0014] The utility model discloses an auxiliary positioning device for punching holes in steel chair legs of an office chair, which has the following beneficial effects: during use, the auxiliary positioning device for punching holes in steel chair legs of an office chair first places the steel chair leg frame between the support seat and the support bar and the positioning bar, and then utilizes a mobile positioning mechanism to drive multiple extrusion blocks to move to the top of the steel chair leg frame, and drives multiple extrusion blocks to move downward until multiple extrusion blocks perform multi-point extrusion and fix the steel chair leg frame, so that the steel chair leg frame will not move above the support seat and the support bar during the punching process, and the punching position of the steel chair leg frame is in a suspended state while supporting the steel chair leg frame through the support bar, thereby facilitating the punching of holes in the steel chair leg frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the support seat, support bar and positioning bar of the utility model;

[0018] Figure 3 This is a structural sectional view of the positioning strip of the utility model.

[0019] In the figure: 1. positioning base; 2. support seat; 201. support bar; 202. positioning bar; 203. extrusion block; 204. support block; 3. steel chair leg frame; 4. moving slot; 401. moving block; 402. screw rod; 403. knob. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The utility model discloses an auxiliary positioning device for punching holes in steel chair legs of an office chair. Figure 1-3 As shown, it includes a positioning base 1, a support base 2 and a support bar 201 are fixedly installed on the top of the positioning base 1, the side of the support base 2 is fixedly connected to the support bar 201, and a steel chair leg frame 3 is placed above the support base 2 and the support bar 201;

[0022] A positioning bar 202 is arranged above the steel chair leg frame 3, and a plurality of extrusion blocks 203 are slidably arranged below the positioning bar 202. The plurality of extrusion blocks 203 are connected to a movable positioning mechanism, which can drive the plurality of extrusion blocks 203 to perform multi-point extrusion and fixation on the steel chair leg frame 3.

[0023] During use, the steel chair leg frame 3 is first placed between the support seat 2 and the support bar 201 and the positioning bar 202, and then the mobile positioning mechanism is used to drive the multiple extrusion blocks 203 to move to the top of the steel chair leg frame 3, and drive the multiple extrusion blocks 203 to move downward until the multiple extrusion blocks 203 perform multi-point extrusion and fix the steel chair leg frame 3, so that the steel chair leg frame 3 will not move above the support seat 2 and the support bar 201 during the punching process, and the support bar 201 supports the steel chair leg frame 3 while keeping the punching position of the steel chair leg frame 3 in a suspended state, thereby facilitating the punching of the steel chair leg frame 3.

[0024] Furthermore, a support block 204 is fixedly installed on the upper side of the support seat 2 , and an end of the positioning bar 202 is fixedly installed on a side surface of the support block 204 .

[0025] Particularly disclosed, the mobile positioning mechanism comprises:

[0026] A movable groove 4, which is provided inside the positioning strip 202;

[0027] The moving block 401 is slidably disposed on the inner wall of the moving groove 4 , and the pressing block 203 is disposed below the moving block 401 .

[0028] During use, since the positioning bar 202 is located above the steel chair leg frame 3 , the moving block 401 can drive the extrusion block 203 to accurately move above the steel chair leg frame 3 when sliding on the inner wall of the moving groove 4 .

[0029] Furthermore, the cross-sections of the moving groove 4 and the moving block 401 are both set to be cross-shaped, so that the moving block 401 will not fall off during the sliding process on the inner wall of the moving groove 4.

[0030] Specifically disclosed is that a screw rod 402 is threadedly connected to the inner wall of the moving block 401 , and the bottom end of the screw rod 402 extends outward and is fixedly connected to the extrusion block 203 .

[0031] Because the inner wall of the moving block 401 is threadedly connected to the screw rod 402, when the screw rod 402 is rotated, it can drive the screw rod 402 to rotate vertically. When the screw rod 402 rotates downward, it can drive the extrusion block 203 to rotate downward until the extrusion block 203 and the steel chair leg frame 3 are squeezed and resisted. When the screw rod 402 rotates upward, the extrusion block 203 can be separated from the steel chair leg frame 3.

[0032] Furthermore, the top end of the screw rod 402 extends outward and is fixedly connected with a knob 403 , and the screw rod 402 can be easily rotated by the provided knob 403 .

[0033] During use, the steel chair leg frame 3 is first placed between the support seat 2 and the support bar 201 and the positioning bar 202, and then the mobile positioning mechanism is used to drive the multiple extrusion blocks 203 to move to the top of the steel chair leg frame 3, and drive the multiple extrusion blocks 203 to move downward until the multiple extrusion blocks 203 perform multi-point extrusion and fix the steel chair leg frame 3, so that the steel chair leg frame 3 will not move above the support seat 2 and the support bar 201 during the punching process, and the support bar 201 supports the steel chair leg frame 3 while keeping the punching position of the steel chair leg frame 3 in a suspended state, thereby facilitating the punching of the steel chair leg frame 3.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An auxiliary positioning device for punching holes in steel chair legs of an office chair, comprising a positioning base (1), characterized in that: A support seat (2) and a support bar (201) are fixedly installed above the positioning base (1), the side of the support seat (2) is fixedly connected to the support bar (201), and a steel chair leg frame (3) is placed above the support seat (2) and the support bar (201); A positioning bar (202) is arranged above the steel chair leg frame (3), and a plurality of extrusion blocks (203) are slidably arranged below the positioning bar (202). The plurality of extrusion blocks (203) are connected to a movable positioning mechanism, and the movable positioning mechanism can drive the plurality of extrusion blocks (203) to perform multi-point extrusion and fixation on the steel chair leg frame (3).

2. The device for auxiliary positioning of a steel leg of an office chair according to claim 1, characterized in that: A support block (204) is fixedly mounted above the support seat (2), and an end of the positioning strip (202) is fixedly mounted on a side surface of the support block (204).

3. The device for auxiliary positioning of a steel leg of an office chair according to claim 1, characterized in that: The mobile positioning mechanism comprises: A movable groove (4), the movable groove (4) is arranged inside the positioning strip (202); The moving block (401) is slidably arranged on the inner wall of the moving groove (4), and the squeezing block (203) is arranged below the moving block (401).

4. The device for auxiliary positioning of a steel leg of an office chair according to claim 3, characterized in that: The cross sections of the moving groove (4) and the moving block (401) are both arranged in a cross shape.

5. The device for auxiliary positioning of a steel leg of an office chair according to claim 3, characterized in that: A screw rod (402) is threadedly connected to the inner wall of the moving block (401), and the bottom end of the screw rod (402) extends outward and is fixedly connected to the extrusion block (203).

6. The device for auxiliary positioning of a steel leg of an office chair according to claim 5, characterized in that: The top end of the screw rod (402) extends outward and is fixedly connected to a knob (403).

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