Expansion pin assembling tool for transmission shaft of massage instrument

Abstract

The utility model relates to the technical field of massage instrument assembly, in particular to an expansion pin assembling tool of a massage instrument transmission shaft, which comprises a support component and a linear reciprocating device, the supporting assembly comprises a base and a movable block, the movable block can get close to the base in the first direction, a transmission shaft containing groove is formed in the movable block, an expansion pin containing groove formed in the first direction is formed in the movable block, and the expansion pin containing groove communicates with the transmission shaft containing groove. The groove depth of the expansion pin placing groove is smaller than the length of the expansion pin, and when the movable block is close to the base, the groove depth of the expansion pin placing groove is reduced; when the movable block is far away from the base, the groove depth of the expansion pin placing groove is increased; the linear reciprocating device is provided with a movable end moving in the first direction, and the movable end of the linear reciprocating device is located on the side, away from the base, of the movable block. According to the utility model, the expansion pin can be quickly and effectively assembled on the transmission shaft of the massage instrument.

Description

Technical Field

[0001] The utility model relates to the technical field of massager assembly, in particular to an expansion pin assembly tool for a massager transmission shaft. Background Art

[0002] The massager drive shaft is an important driving component used to drive the massage blocks in the massager. Figure 1 As shown, an expansion pin needs to be installed on the rotating shaft of the massager transmission shaft to fix the transmission gear on the rotating shaft. Currently, the expansion pin is installed manually by hammering the expansion pin with a rubber hammer to gradually install the expansion pin into the assembly hole of the rotating shaft. However, this method not only has poor assembly efficiency, but also has the safety risk of injuring workers. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an expansion pin assembly tool for a massager transmission shaft, which can quickly and effectively complete the assembly of the expansion pin on the massager transmission shaft.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an expansion pin assembly of a massage instrument transmission shaft, including a support assembly and a linear reciprocating device; the support assembly includes a base and a movable block, the movable block can be close to the base along a first direction, a transmission shaft placement groove is provided on the movable block, the movable block has an expansion pin placement groove arranged along the first direction, and the expansion pin placement groove is connected to the transmission shaft placement groove, the groove depth of the expansion pin placement groove is less than the length of the expansion pin,

[0005] When the movable block approaches the base, the depth of the expansion pin placement groove decreases;

[0006] When the movable block is away from the base, the depth of the expansion pin placement groove increases;

[0007] The linear reciprocating device has a movable end that moves along the first direction, and the movable end of the linear reciprocating device is located at a side of the movable block away from the base.

[0008] Furthermore, the maximum groove depth of the expansion pin placement groove is 1 mm to 2 mm smaller than the length of the expansion pin.

[0009] Furthermore, a through hole is provided on the movable block along the first direction, and an expansion pin support rod is provided on the base and is slidably disposed in the through hole, and one end of the expansion pin support rod away from the base forms the expansion pin placement groove with the through hole wall.

[0010] Furthermore, a guide slider is arranged on the base, and the movable block is slidably arranged on the guide slider.

[0011] Furthermore, a spring is sleeved on the guide sliding block, one end of the spring abuts against the base, and the end of the spring away from the base abuts against the movable block.

[0012] The beneficial effect of the utility model is that a supporting assembly with a base and a movable block is added, and the assembler can place the expansion pin into the expansion pin placement groove, and extend the pin head of the expansion pin into the drive shaft placement groove. Then the assembler places the massager drive shaft on the movable block according to the drive shaft placement groove, and allows the pin head of the expansion pin to extend into the assembly hole of the rotating shaft, thereby completing the positioning of the massager drive shaft on the movable block. Then, a linear reciprocating device is used to drive the movable block toward the base in a first direction. As the movable block continuously approaches the base, the groove depth of the expansion pin placement groove will gradually decrease, and then the expansion pin will continuously extend into the drive shaft placement groove, that is, the expansion pin is continuously assembled into the assembly hole of the rotating shaft, thereby achieving fast and safe expansion pin assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the transmission shaft of the massager;

[0014] Figure 2 This is a structural schematic diagram of an expansion pin of a massager transmission shaft provided by the utility model being assembled into a tooling;

[0015] Figure 3 This is a schematic diagram of the main structure of the expansion pin of the transmission shaft of a massager proposed by the utility model assembled into a tooling;

[0016] Figure 4 for Figure 3 An enlarged view of part A of the expansion pin of a massager transmission shaft being assembled into a tooling;

[0017] Figure 5 This is a schematic diagram of the structure of the movable block of the expansion pin of the transmission shaft of a massager proposed by the utility model assembled into the tooling;

[0018] Figure 6 This is a schematic diagram of the structure of the use state of the expansion pin of the transmission shaft of a massager proposed by the utility model being assembled into a tooling;

[0019] Description of labels:

[0020] 1. Support assembly; 11. Base; 111. Expansion pin support rod; 112. Guide slider;

[0021] 12. movable block; 121. transmission shaft placement groove; 122. through hole;

[0022] 2. Linear reciprocating device; 3. Spring;

[0023] 4. Massager transmission shaft; 41. Rotating shaft; 42. Gear;

[0024] 5. Expansion pin. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0026] It should be noted that the first direction referred to below is the vertical direction.

[0027] Please refer to Figures 2 to 6 As shown, the utility model is an expansion pin assembly for a massager transmission shaft, comprising a support assembly 1 and a linear reciprocating device 2; the support assembly 1 comprises a base 11 and a movable block 12, the movable block 12 can be close to the base 11 along a first direction, a transmission shaft placement groove 121 is provided on the movable block 12, the movable block 12 has an expansion pin placement groove arranged along the first direction, and the expansion pin placement groove is connected to the transmission shaft placement groove 121, the groove depth of the expansion pin placement groove is less than the length of the expansion pin,

[0028] When the movable block 12 is close to the base 11, the depth of the expansion pin placement groove decreases;

[0029] When the movable block 12 is away from the base 11, the depth of the expansion pin placement groove increases;

[0030] The linear reciprocating device 2 has a movable end that moves along the first direction. The movable end of the linear reciprocating device 2 is located on a side of the movable block 12 away from the base 11 .

[0031] The transmission shaft placement groove 121 is divided into a shaft placement groove for accommodating the shaft 41 and a gear placement groove for accommodating the gear 42 , and the shaft placement groove is connected to the expansion pin placement groove.

[0032] Working principle: During the assembly process, the assembler can place the expansion pin 5 into the expansion pin placement groove, and extend the pin head of the expansion pin 5 into the drive shaft placement groove 121. Then the assembler places the massager drive shaft 4 on the movable block 12 according to the drive shaft placement groove 121, and allows the pin head of the expansion pin 5 to extend into the assembly hole of the rotating shaft 41, thereby completing the positioning of the massager drive shaft 4 on the movable block 12. Then, the linear reciprocating device 2 is used to drive the movable block 12 toward the base in the first direction. As the movable block 12 is constantly approaching the base 11, the groove depth of the expansion pin placement groove will gradually decrease, and then the expansion pin 5 will continuously extend into the drive shaft placement groove 121, that is, the expansion pin 5 is continuously assembled into the assembly hole of the rotating shaft 41, thereby achieving a fast and safe assembly of the expansion pin 5.

[0033] Furthermore, the maximum groove depth of the expansion pin placement groove is 1 mm to 2 mm smaller than the length of the expansion pin 5 .

[0034] From the above description, it can be seen that since the maximum groove depth of the expansion pin placement groove is 1 mm to 2 mm smaller than the length of the expansion pin, the pin head of the expansion pin 5 placed in the expansion pin placement groove will extend into the drive shaft placement groove 121 by 1 mm to 2 mm, which not only facilitates the positioning between the expansion pin 5 and the rotating shaft 41, but also ensures that the massager drive shaft 4 lies stably on the movable block 12.

[0035] Please refer to Figure 5 As shown, further, a through hole 122 is provided on the movable block 12 along the first direction, and an expansion pin support rod 111 is provided on the base 11 and is slidably arranged in the through hole 122, and the end of the expansion pin support rod 111 away from the base 11 forms the expansion pin placement groove with the wall of the through hole 122.

[0036] It can be known from the above description that the depth of the expansion pin placement groove is changed by sliding the expansion pin support rod 111 in the through hole 122 .

[0037] Please refer to Figure 4 As shown, further, a guide slider 112 is provided on the base 11 , and the movable block 12 is slidably provided on the guide slider 112 .

[0038] It can be seen from the above description that the guide slider 112 is used to ensure the sliding direction of the movable block 12 .

[0039] Please refer to Figure 4 As shown, further, a spring 3 is sleeved on the guide slider 112 , one end of the spring 3 abuts against the base 11 , and the end of the spring 3 away from the base 11 abuts against the movable block 12 .

[0040] It can be seen from the above description that the elastic force of the spring 3 can be used to achieve automatic resetting of the movable block 12, so as to facilitate the cyclic operation of the assembler.

[0041] Embodiment 1

[0042] A massager drive shaft expansion pin assembly tool, please refer to Figures 2 to 6As shown, it includes a support assembly 1 and a linear reciprocating device 2; the support assembly 1 includes a base 11 and a movable block 12, the movable block 12 can approach the base 11 along a first direction, a transmission shaft placement groove 121 is arranged on the movable block 12, the movable block 12 has an expansion pin placement groove arranged along the first direction, and the expansion pin placement groove is connected with the transmission shaft placement groove 121, the groove depth of the expansion pin placement groove is less than the length of the expansion pin, and the maximum groove depth of the expansion pin placement groove is 1 mm to 2 mm less than the length of the expansion pin 5, the linear reciprocating device 2 has a movable end that moves along the first direction, and the movable end of the linear reciprocating device 2 is located on the side of the movable block 12 away from the base 11. A through hole 122 is arranged on the movable block 12 along the first direction, and an expansion pin support rod 111 that can be slidably arranged in the through hole 122 is arranged on the base 11, and the end of the expansion pin support rod 111 away from the base 11 forms the expansion pin placement groove with the hole wall of the through hole 122. The base 11 is provided with a guide slider 112, and the movable block 12 is slidably provided on the guide slider 112. The guide slider 112 is sleeved with a spring 3, one end of the spring 3 abuts against the base 11, and the end of the spring 3 away from the base 11 abuts against the movable block 12.

[0043] Working principle: During the assembly process, the assembler can place the expansion pin 5 into the expansion pin placement groove, and extend the pin head of the expansion pin 5 into the drive shaft placement groove 121. Then the assembler places the massager drive shaft 4 on the movable block 12 according to the drive shaft placement groove 121, and allows the pin head of the expansion pin 5 to extend into the assembly hole of the rotating shaft 41, thereby completing the positioning of the massager drive shaft 4 on the movable block 12. Then the linear reciprocating device 2 is used to drive the movable block 12 to approach the base along the first direction. As the movable block 12 is constantly approaching the base 11, the expansion pin support rod 111 is constantly inserted into the through hole 122, thereby changing the depth of the expansion pin placement groove, so that the expansion pin 5 will continuously extend into the drive shaft placement groove 121, that is, the expansion pin 5 is continuously assembled into the assembly hole of the rotating shaft 41, thereby achieving fast and safe assembly of the expansion pin 5.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An expansion pin assembly for a massager transmission shaft, characterized in that: It includes a support assembly and a linear reciprocating device; The support assembly includes a base and a movable block, the movable block can approach the base along a first direction, a transmission shaft placement groove is provided on the movable block, an expansion pin placement groove is provided on the movable block along the first direction, and the expansion pin placement groove is connected with the transmission shaft placement groove, and the groove depth of the expansion pin placement groove is less than the length of the expansion pin, When the movable block approaches the base, the depth of the expansion pin placement groove decreases; When the movable block is away from the base, the depth of the expansion pin placement groove increases; The linear reciprocating device has a movable end that moves along the first direction, and the movable end of the linear reciprocating device is located at a side of the movable block away from the base.

2. The expansion pin assembly of the massager transmission shaft according to claim 1 is characterized in that: The maximum groove depth of the expansion pin placement groove is 1 mm to 2 mm less than the length of the expansion pin.

3. The expansion pin assembly of the massager transmission shaft according to claim 1 is characterized in that: A through hole is arranged on the movable block along the first direction, and an expansion pin support rod is arranged on the base and is slidably arranged in the through hole. One end of the expansion pin support rod away from the base forms the expansion pin placement groove with the wall of the through hole.

4. The expansion pin assembly of the massager transmission shaft according to claim 1 is characterized in that: A guide slide block is arranged on the base, and the movable block is slidably arranged on the guide slide block.

5. The expansion pin assembly of the massager transmission shaft according to claim 4 is characterized in that: A spring is sleeved on the guide sliding block, one end of the spring abuts against the base, and the end of the spring away from the base abuts against the movable block.

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